/* ============================================
   BioSignal AI Workbench - Design System CSS
   Version: 2.0
   ============================================ */

/* ============================================
   1. CSS Custom Properties (Design Tokens)
   ============================================ */

:root {
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Roboto Mono', 'Fira Code', monospace;

    /* Font Sizes */
    --text-xs: 0.75rem;    /* 12px */
    --text-sm: 0.875rem;   /* 14px */
    --text-base: 1rem;     /* 16px */
    --text-lg: 1.125rem;   /* 18px */
    --text-xl: 1.25rem;    /* 20px */
    --text-2xl: 1.5rem;    /* 24px */

    /* Spacing */
    --spacing-1: 0.25rem;  /* 4px */
    --spacing-2: 0.5rem;   /* 8px */
    --spacing-3: 0.75rem;  /* 12px */
    --spacing-4: 1rem;     /* 16px */
    --spacing-5: 1.25rem;  /* 20px */
    --spacing-6: 1.5rem;   /* 24px */
    --spacing-8: 2rem;     /* 32px */

    /* Layout Dimensions */
    --sidebar-width: 64px;
    --sidebar-expanded-width: 240px;
    --topbar-height: 56px;
    --panel-right-width: 350px;
    --panel-bottom-height: 250px;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

    /* Z-Index Scale */
    --z-sidebar: 50;
    --z-topbar: 40;
    --z-dropdown: 100;
    --z-modal: 200;
    --z-toast: 300;
}

/* ============================================
   2. Light Mode Colors (Default)
   ============================================ */

:root,
[data-theme="light"] {
    /* Primary Brand */
    --color-primary: #0EA5E9;
    --color-primary-hover: #0284C7;
    --color-primary-light: #E0F2FE;

    /* Backgrounds */
    --color-bg-app: #F8FAFC;
    --color-bg-surface: #FFFFFF;
    --color-bg-elevated: #FFFFFF;
    --color-bg-hover: #F1F5F9;
    --color-bg-active: #E2E8F0;

    /* Borders */
    --color-border: #E2E8F0;
    --color-border-strong: #CBD5E1;

    /* Text */
    --color-text-primary: #0F172A;
    --color-text-secondary: #475569;
    --color-text-muted: #64748B;
    --color-text-inverted: #FFFFFF;

    /* Semantic Colors */
    --color-success: #10B981;
    --color-success-bg: #ECFDF5;
    --color-warning: #F59E0B;
    --color-warning-bg: #FFFBEB;
    --color-error: #EF4444;
    --color-error-bg: #FEF2F2;
    --color-info: #8B5CF6;
    --color-info-bg: #F5F3FF;

    /* Chart Colors */
    --color-chart-bg: #FFFFFF;
    --color-chart-grid: rgba(0, 0, 0, 0.1);
    --color-chart-line-1: #0369A1;
    --color-chart-line-2: #DC2626;
    --color-chart-line-3: #059669;

    /* Scrollbar */
    --color-scrollbar-track: #F1F5F9;
    --color-scrollbar-thumb: #CBD5E1;
    --color-scrollbar-thumb-hover: #94A3B8;

    /* Study Header Gradient Colors */
    --study-bg-start: #4a86bd; 
    --study-bg-end: #accef3;
    --study-text: #102a43; /* Ciemny tekst */
}

/* ============================================
   3. Dark Mode Colors
   ============================================ */

[data-theme="dark"] {
    /* Primary Brand */
    --color-primary: #0EA5E9;
    --color-primary-hover: #38BDF8;
    --color-primary-light: #0C4A6E;

    /* Backgrounds */
    --color-bg-app: #0F172A;
    --color-bg-surface: #1E293B;
    --color-bg-elevated: #334155;
    --color-bg-hover: #334155;
    --color-bg-active: #475569;

    /* Borders */
    --color-border: #334155;
    --color-border-strong: #475569;

    /* Text */
    --color-text-primary: #F1F5F9;
    --color-text-secondary: #CBD5E1;
    --color-text-muted: #94A3B8;
    --color-text-inverted: #0F172A;

    /* Semantic Colors */
    --color-success: #34D399;
    --color-success-bg: #064E3B;
    --color-warning: #FBBF24;
    --color-warning-bg: #78350F;
    --color-error: #F87171;
    --color-error-bg: #7F1D1D;
    --color-info: #A78BFA;
    --color-info-bg: #4C1D95;

    /* Chart Colors - High contrast for dark mode */
    --color-chart-bg: #000000;
    --color-chart-grid: rgba(255, 255, 255, 0.1);
    --color-chart-line-1: #22D3EE;
    --color-chart-line-2: #A3E635;
    --color-chart-line-3: #F472B6;

    /* Scrollbar */
    --color-scrollbar-track: #1E293B;
    --color-scrollbar-thumb: #475569;
    --color-scrollbar-thumb-hover: #64748B;

    /* Shadows - more subtle in dark mode */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.3);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4), 0 4px 6px -4px rgb(0 0 0 / 0.3);

    /* Study Header Gradient Colors */
    --study-bg-start: #22384f;
    --study-bg-end: #344965;
    --study-text: #ffffff;
}

/* ============================================
   4. CSS Reset & Base Styles
   ============================================ */

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: var(--text-sm);
    line-height: 1.5;
    color: var(--color-text-primary);
    background-color: var(--color-bg-app);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-scrollbar-track);
}

::-webkit-scrollbar-thumb {
    background: var(--color-scrollbar-thumb);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-scrollbar-thumb-hover);
}

/* Firefox scrollbar */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--color-scrollbar-thumb) var(--color-scrollbar-track);
}

/* ============================================
   5. Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.25;
    color: var(--color-text-primary);
}

h1 { font-size: var(--text-2xl); }
h2 { font-size: var(--text-xl); }
h3 { font-size: var(--text-lg); }
h4 { font-size: var(--text-base); }
h5 { font-size: var(--text-sm); }
h6 { font-size: var(--text-xs); }

p {
    margin-bottom: var(--spacing-4);
    color: var(--color-text-secondary);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-hover);
}

.text-muted {
    color: var(--color-text-muted) !important;
}

.text-mono {
    font-family: var(--font-mono);
}

/* ============================================
   6. App Shell Layout
   ============================================ */

.app-wrapper {
    display: flex;
    min-height: 100vh;
    width: 100%;
}

/* ============================================
   7. Sidebar Navigation
   ============================================ */

.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    width: var(--sidebar-width);
    background-color: var(--color-bg-surface);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    z-index: var(--z-sidebar);
    transition: width var(--transition-normal);
    overflow: hidden;
}

.sidebar:hover,
.sidebar.expanded {
    width: var(--sidebar-expanded-width);
}

/* Sidebar Logo */
.sidebar-logo {
    height: var(--topbar-height);
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-4);
    border-bottom: 1px solid var(--color-border);
    flex-shrink: 0;
}

.sidebar-logo img {
    height: 32px;
    width: auto;
    flex-shrink: 0;
}

/* Domyślnie (jasny motyw): ukrywamy ciemne (białe) logo */
.logo-dark {
    display: none;
}
.logo-light {
    display: block;
}

/* Nadpisanie dla ciemnego motywu: pokazujemy białe logo */
[data-theme="dark"] .logo-dark {
    display: block;
}
[data-theme="dark"] .logo-light {
    display: none;
}

.sidebar-logo-text {
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-left: var(--spacing-3);
    white-space: nowrap;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.sidebar:hover .sidebar-logo-text,
.sidebar.expanded .sidebar-logo-text {
    opacity: 1;
}

/* Sidebar Navigation */
.sidebar-nav {
    flex: 1;
    padding: var(--spacing-4) 0;
    overflow-y: auto;
    overflow-x: hidden;
}

.sidebar-nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-nav-section {
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.sidebar:hover .sidebar-nav-section,
.sidebar.expanded .sidebar-nav-section {
    opacity: 1;
}

.sidebar-nav-item {
    margin: var(--spacing-1) var(--spacing-2);
}

.sidebar-nav-link {
    display: flex;
    align-items: center;
    padding: var(--spacing-3) var(--spacing-3);
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    text-decoration: none;
    position: relative;
    cursor: pointer;
}

.sidebar-nav-link:hover {
    background-color: var(--color-bg-hover);
    color: var(--color-text-primary);
}

.sidebar-nav-link.active {
    background-color: var(--color-primary);
    color: var(--color-text-inverted);
}

.sidebar-nav-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 18px;
}

.sidebar-nav-text {
    margin-left: var(--spacing-3);
    white-space: nowrap;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.sidebar:hover .sidebar-nav-text,
.sidebar.expanded .sidebar-nav-text {
    opacity: 1;
}

.sidebar-nav-caret {
    margin-left: auto;
    font-size: 12px;
    transition: transform var(--transition-fast);
    opacity: 0;
}

.sidebar:hover .sidebar-nav-caret,
.sidebar.expanded .sidebar-nav-caret {
    opacity: 1;
}

.sidebar-nav-item.open .sidebar-nav-caret {
    transform: rotate(90deg);
}

/* Sidebar Tooltip (when collapsed) */
.sidebar-nav-link[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    left: calc(var(--sidebar-width) + 8px);
    background-color: var(--color-bg-elevated);
    color: var(--color-text-primary);
    padding: var(--spacing-2) var(--spacing-3);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    white-space: nowrap;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    z-index: 1000;
    pointer-events: none;
}

.sidebar:not(:hover):not(.expanded) .sidebar-nav-link[data-tooltip]:hover::after {
    opacity: 1;
    visibility: visible;
}

/* Sidebar Submenu */
.sidebar-submenu {
    list-style: none;
    padding: 0;
    margin: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.sidebar-nav-item.open .sidebar-submenu {
    max-height: 500px;
}

.sidebar-submenu-link {
    display: flex;
    align-items: center;
    padding: var(--spacing-2) var(--spacing-3);
    padding-left: calc(24px + var(--spacing-6));
    color: var(--color-text-muted);
    font-size: var(--text-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    text-decoration: none;
    margin: var(--spacing-1) var(--spacing-2);
}

.sidebar-submenu-link:hover {
    background-color: var(--color-bg-hover);
    color: var(--color-text-primary);
}

.sidebar-submenu-link.active {
    color: var(--color-primary);
    background-color: var(--color-primary-light);
}

/* Sidebar Footer */
.sidebar-footer {
    padding: var(--spacing-4);
    border-top: 1px solid var(--color-border);
    flex-shrink: 0;
}

/* ============================================
   8. Topbar / Header
   ============================================ */

.topbar {
    position: fixed;
    top: 0;
    left: var(--sidebar-width);
    right: 0;
    height: var(--topbar-height);
    background-color: var(--color-bg-surface);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-6);
    z-index: var(--z-topbar);
    transition: left var(--transition-normal);
}

.sidebar:hover ~ .main-content .topbar,
.sidebar.expanded ~ .main-content .topbar {
    left: var(--sidebar-expanded-width);
}

/* Breadcrumbs */
.breadcrumbs {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.breadcrumbs a {
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
}

.breadcrumbs a:hover {
    color: var(--color-primary);
}

.breadcrumbs-separator {
    color: var(--color-border-strong);
}

.breadcrumbs-current {
    color: var(--color-text-primary);
    font-weight: 500;
}

/* Topbar Actions */
.topbar-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

/* Theme Switch Toggle */
.theme-switch {
    position: relative;
    display: inline-flex;
    align-items: center;
    width: 52px;
    height: 28px;
    cursor: pointer;
    margin: 0;
}

.theme-switch input {
    opacity: 0;
    width: 0;
    height: 0;
    position: absolute;
}

.theme-switch-slider {
    position: absolute;
    inset: 0;
    background-color: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: 28px;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 7px;
}

.theme-switch-slider::before {
    content: '';
    position: absolute;
    height: 20px;
    width: 20px;
    left: 3px;
    top: 50%;
    transform: translateY(-50%);
    background-color: var(--color-primary);
    border-radius: 50%;
    transition: transform var(--transition-fast);
    z-index: 1;
}

.theme-switch input:checked + .theme-switch-slider::before {
    transform: translateY(-50%) translateX(24px);
}

.theme-switch-slider .icon-sun {
    font-size: 12px;
    color: var(--color-warning, #f59e0b);
    z-index: 0;
}

.theme-switch-slider .icon-moon {
    font-size: 12px;
    color: var(--color-text-tertiary);
    z-index: 0;
}

.theme-switch input:checked + .theme-switch-slider .icon-moon {
    color: var(--color-primary-light, #93c5fd);
}

.theme-switch:hover .theme-switch-slider {
    border-color: var(--color-border-strong);
}

.theme-switch:focus-within .theme-switch-slider {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Language Selector */
.lang-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    height: 36px;
    padding: 0 var(--spacing-2);
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: all var(--transition-fast);
}

.lang-btn:hover {
    background-color: var(--color-bg-hover);
    color: var(--color-text-primary);
}

.lang-flag {
    width: 20px;
    height: 15px;
    border-radius: 2px;
    flex-shrink: 0;
}

.lang-code {
    font-family: 'Inter', sans-serif;
}

.lang-dropdown {
    min-width: 140px;
}

.lang-dropdown form {
    display: contents;
}

.lang-dropdown .dropdown-item {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    font-family: inherit;
    font-size: inherit;
}

.lang-dropdown .dropdown-item.active {
    color: var(--color-primary);
    font-weight: 600;
}

/* Notifications */
.notifications-btn {
    position: relative;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.notifications-btn:hover {
    background-color: var(--color-bg-hover);
    color: var(--color-text-primary);
}

.notifications-badge {
    position: absolute;
    top: 6px;
    right: 6px;
    min-width: 18px;
    height: 18px;
    background-color: var(--color-error);
    color: white;
    font-size: 11px;
    font-weight: 600;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 4px;
}

/* User Avatar */
.user-avatar-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2);
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.user-avatar-btn:hover {
    background-color: var(--color-bg-hover);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 2px solid var(--color-border);
}

/* Dropdown Menu */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 240px;
    background-color: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
    z-index: var(--z-dropdown);
}

.dropdown.open .dropdown-menu,
.dropdown-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-header {
    padding: var(--spacing-3) var(--spacing-4);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--spacing-2);
}

.dropdown-header-name {
    font-weight: 600;
    color: var(--color-text-primary);
}

.dropdown-header-role {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-top: var(--spacing-1);
}

.dropdown-header-email {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3) var(--spacing-4);
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    text-decoration: none;
    cursor: pointer;
    border: none;
    background: transparent;
    width: 100%;
    text-align: left;
    font-size: var(--text-sm);
}

.dropdown-item:hover {
    background-color: var(--color-bg-hover);
    color: var(--color-text-primary);
}

.dropdown-item.danger {
    color: var(--color-error);
}

.dropdown-item.danger:hover {
    background-color: var(--color-error-bg);
}

.dropdown-divider {
    height: 1px;
    background-color: var(--color-border);
    margin: var(--spacing-2) 0;
}

/* ============================================
   9. Main Content Area
   ============================================ */

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    transition: margin-left var(--transition-normal);
}

.sidebar:hover ~ .main-content,
.sidebar.expanded ~ .main-content {
    margin-left: var(--sidebar-expanded-width);
}

.content-wrapper {
    padding: var(--spacing-6);
    padding-top: calc(var(--topbar-height) + var(--spacing-6));
    min-height: 100vh;
}

/* Dashboard specific - more padding */
.content-wrapper.dashboard {
    padding: var(--spacing-6);
}

/* Workstation - no padding for max space */
.content-wrapper.workstation {
    padding: 0;
    padding-top: var(--topbar-height);
    height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ============================================
   10. Cards & Panels
   ============================================ */

.card {
    background-color: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.card-header {
    padding: var(--spacing-4) var(--spacing-5);
    border-bottom: 1px solid var(--color-border);
    background-color: transparent;
}

.card-title {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0;
}

.card-body {
    padding: var(--spacing-5);
}

.card-footer {
    padding: var(--spacing-4) var(--spacing-5);
    border-top: 1px solid var(--color-border);
    background-color: var(--color-bg-app);
}

/* ============================================
   11. Buttons
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-5);
    font-family: var(--font-primary);
    font-size: var(--text-sm);
    font-weight: 500;
    line-height: 1;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Primary Button */
.btn-primary {
    background-color: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
    color: white;
}

/* Secondary Button */
.btn-secondary {
    background-color: var(--color-bg-surface);
    color: var(--color-text-primary);
    border-color: var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--color-bg-hover);
    border-color: var(--color-border-strong);
    color: var(--color-text-primary);
}

/* Ghost Button */
.btn-ghost {
    background-color: transparent;
    color: var(--color-text-secondary);
    border-color: transparent;
}

.btn-ghost:hover:not(:disabled) {
    background-color: var(--color-bg-hover);
    color: var(--color-text-primary);
}

/* Danger Button */
.btn-danger {
    background-color: var(--color-error);
    color: white;
    border-color: var(--color-error);
}

.btn-danger:hover:not(:disabled) {
    background-color: #DC2626;
    border-color: #DC2626;
    color: white;
}

/* Success Button */
.btn-success {
    background-color: var(--color-success);
    color: white;
    border-color: var(--color-success);
}

.btn-success:hover:not(:disabled) {
    background-color: #059669;
    border-color: #059669;
    color: white;
}

/* Warning Button */
.btn-warning {
    background-color: var(--color-warning);
    color: var(--color-text-inverted);
    border-color: var(--color-warning);
}

.btn-warning:hover:not(:disabled) {
    background-color: #D97706;
    border-color: #D97706;
}

/* Outline variants */
.btn-outline-primary {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-outline-primary:hover:not(:disabled) {
    background-color: var(--color-primary);
    color: white;
}

/* Button Sizes */
.btn-sm {
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--text-xs);
}

.btn-lg {
    padding: var(--spacing-4) var(--spacing-6);
    font-size: var(--text-base);
}

/* Icon Button */
.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
}

.btn-icon.btn-sm {
    width: 32px;
    height: 32px;
}

/* Close Button */
.btn-close {
    width: 28px;
    height: 28px;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.btn-close:hover {
    background-color: var(--color-bg-hover);
    color: var(--color-text-primary);
}

/* ============================================
   12. Form Elements
   ============================================ */

.form-group {
    margin-bottom: var(--spacing-5);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-2);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-primary);
}

.form-control {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    font-family: var(--font-primary);
    font-size: var(--text-sm);
    color: var(--color-text-primary);
    background-color: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-control::placeholder {
    color: var(--color-text-muted);
}

.form-control:disabled {
    background-color: var(--color-bg-app);
    cursor: not-allowed;
}

/* Textarea */
textarea.form-control {
    min-height: 100px;
    resize: vertical;
}

/* Select */
.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
}

/* Checkbox & Radio */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-3);
}

.form-check-input {
    width: 18px;
    height: 18px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    accent-color: var(--color-primary);
}

.form-check-label {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    cursor: pointer;
}

/* Validation States */
.form-control.is-invalid {
    border-color: var(--color-error);
}

.form-control.is-invalid:focus {
    box-shadow: 0 0 0 3px var(--color-error-bg);
}

.invalid-feedback {
    color: var(--color-error);
    font-size: var(--text-xs);
    margin-top: var(--spacing-1);
}

.form-control.is-valid {
    border-color: var(--color-success);
}

/* Input Group */
.input-group {
    display: flex;
}

.input-group .form-control {
    border-radius: 0;
}

.input-group .form-control:first-child {
    border-top-left-radius: var(--radius-md);
    border-bottom-left-radius: var(--radius-md);
}

.input-group .form-control:last-child {
    border-top-right-radius: var(--radius-md);
    border-bottom-right-radius: var(--radius-md);
}

.input-group .btn {
    border-radius: 0;
}

.input-group .btn:last-child {
    border-top-right-radius: var(--radius-md);
    border-bottom-right-radius: var(--radius-md);
}

/* ============================================
   13. Tables
   ============================================ */

.table-wrapper {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm);
}

.table th,
.table td {
    padding: var(--spacing-3) var(--spacing-4);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.table th {
    font-weight: 600;
    color: var(--color-text-muted);
    background-color: var(--color-bg-app);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.table td {
    color: var(--color-text-primary);
}

.table tbody tr:hover {
    background-color: var(--color-bg-hover);
}

/* Condensed Table (for parameters) */
.table-condensed th,
.table-condensed td {
    padding: var(--spacing-2) var(--spacing-3);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
}

/* Zebra Striping */
.table-striped tbody tr:nth-child(odd) {
    background-color: var(--color-bg-app);
}

/* ============================================
   14. Alerts & Notifications
   ============================================ */

.alert {
    padding: var(--spacing-4) var(--spacing-5);
    border-radius: var(--radius-md);
    border-left: 4px solid;
    margin-bottom: var(--spacing-4);
    font-size: var(--text-sm);
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--spacing-3);
}

.alert-success {
    background-color: var(--color-success-bg);
    border-color: var(--color-success);
    color: var(--color-success);
}

.alert-warning {
    background-color: var(--color-warning-bg);
    border-color: var(--color-warning);
    color: var(--color-warning);
}

.alert-danger,
.alert-error {
    background-color: var(--color-error-bg);
    border-color: var(--color-error);
    color: var(--color-error);
}

.alert-info {
    background-color: var(--color-info-bg);
    border-color: var(--color-info);
    color: var(--color-info);
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: calc(var(--topbar-height) + var(--spacing-4));
    right: var(--spacing-4);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.toast {
    padding: var(--spacing-4);
    background-color: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 300px;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ============================================
   15. Badges & Status
   ============================================ */

.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-1) var(--spacing-2);
    font-size: var(--text-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
}

.badge-success {
    background-color: var(--color-success-bg);
    color: var(--color-success);
}

.badge-warning {
    background-color: var(--color-warning-bg);
    color: var(--color-warning);
}

.badge-danger {
    background-color: var(--color-error-bg);
    color: var(--color-error);
}

.badge-info {
    background-color: var(--color-info-bg);
    color: var(--color-info);
}

.badge-primary {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
}

/* Status Indicator */
.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--text-sm);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
}

.status-dot.success { background-color: var(--color-success); }
.status-dot.warning { background-color: var(--color-warning); }
.status-dot.danger { background-color: var(--color-error); }

/* ============================================
   16. Search
   ============================================ */

.search-container {
    position: relative;
    max-width: 600px;
    margin: 0 auto;
}

.search-input {
    width: 100%;
    padding: var(--spacing-4) var(--spacing-5);
    padding-left: 48px;
    font-size: var(--text-base);
    background-color: var(--color-bg-surface);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    color: var(--color-text-primary);
}

.search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
}

.search-input::placeholder {
    color: var(--color-text-muted);
}

.search-icon {
    position: absolute;
    left: var(--spacing-4);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    font-size: 18px;
}

/* Search Results Dropdown */
.search-results {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    background-color: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    max-height: 400px;
    overflow-y: auto;
    z-index: var(--z-dropdown);
}

.search-result-item {
    padding: var(--spacing-3) var(--spacing-4);
    cursor: pointer;
    transition: background-color var(--transition-fast);
    border-bottom: 1px solid var(--color-border);
}

.search-result-item:last-child {
    border-bottom: none;
}

.search-result-item:hover {
    background-color: var(--color-bg-hover);
}

/* ============================================
   17. Workstation Layout (IDE-like)
   ============================================ */

.workstation {
    display: grid;
    grid-template-columns: 1fr var(--panel-right-width);
    grid-template-rows: auto 1fr auto;
    height: calc(100vh - var(--topbar-height));
    overflow: hidden;
}

/* Action Bar */
.action-bar {
    grid-column: 1 / -1;
    padding: var(--spacing-3) var(--spacing-4);
    background-color: var(--color-bg-surface);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.action-bar-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.action-bar-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

/* Chart Panel */
.chart-panel {
    display: flex;
    flex-direction: column;
    background-color: var(--color-chart-bg);
    overflow: hidden;
    position: relative;
}

.chart-container {
    flex: 1;
    padding: var(--spacing-4);
    min-height: 0;
}

.chart-canvas {
    width: 100%;
    height: 100%;
    background-color: var(--color-chart-bg);
}

/* AI Panel (Right) */
.ai-panel {
    display: flex;
    flex-direction: column;
    background-color: var(--color-bg-surface);
    border-left: 1px solid var(--color-border);
    overflow: hidden;
}

.ai-panel-header {
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--color-border);
}

.ai-panel-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-4);
}

/* Result Card */
.result-card {
    padding: var(--spacing-4);
    border-radius: var(--radius-md);
    border-left: 4px solid;
    margin-bottom: var(--spacing-4);
}

.result-card.healthy {
    background-color: var(--color-success-bg);
    border-color: var(--color-success);
}

.result-card.pathology {
    background-color: var(--color-warning-bg);
    border-color: var(--color-warning);
}

.result-card-title {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-2);
}

.result-card.healthy .result-card-title {
    color: var(--color-success);
}

.result-card.pathology .result-card-title {
    color: var(--color-warning);
}

.result-card-disclaimer {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-top: var(--spacing-3);
    padding-top: var(--spacing-3);
    border-top: 1px solid var(--color-border);
}

/* Chat Interface */
.chat-container {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-4);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.chat-bubble {
    max-width: 85%;
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
    line-height: 1.5;
}

.chat-bubble.user {
    align-self: flex-end;
    background-color: var(--color-primary);
    color: white;
    border-bottom-right-radius: var(--radius-sm);
}

.chat-bubble.ai {
    align-self: flex-start;
    background-color: var(--color-bg-app);
    color: var(--color-text-primary);
    border-bottom-left-radius: var(--radius-sm);
}

.chat-bubble-actions {
    margin-top: var(--spacing-2);
    display: flex;
    gap: var(--spacing-2);
}

/* Suggestion Chips */
.suggestion-chips {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
    padding: var(--spacing-3);
    border-top: 1px solid var(--color-border);
}

.suggestion-chip {
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--text-xs);
    background-color: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.suggestion-chip:hover {
    background-color: var(--color-primary-light);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* Chat Input */
.chat-input-container {
    padding: var(--spacing-4);
    border-top: 1px solid var(--color-border);
    background-color: var(--color-bg-surface);
}

.chat-input-wrapper {
    display: flex;
    gap: var(--spacing-2);
}

.chat-input {
    flex: 1;
    padding: var(--spacing-3) var(--spacing-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
    background-color: var(--color-bg-app);
    color: var(--color-text-primary);
    resize: none;
}

.chat-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* Bottom Panel (Report/Parameters) */
.bottom-panel {
    grid-column: 1 / -1;
    height: var(--panel-bottom-height);
    background-color: var(--color-bg-surface);
    border-top: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    position: relative;
}

.resize-handle {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    cursor: ns-resize;
    background-color: transparent;
    transition: background-color var(--transition-fast);
}

.resize-handle:hover {
    background-color: var(--color-primary);
}

/* Tabs */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--color-border);
    background-color: var(--color-bg-app);
}

.tab {
    padding: var(--spacing-3) var(--spacing-5);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-muted);
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.tab:hover {
    color: var(--color-text-primary);
}

.tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.tab-content {
    flex: 1;
    overflow: auto;
    padding: var(--spacing-4);
}

/* Nav Tabs (Bootstrap compatible) */
.nav-tabs {
    display: flex;
    border-bottom: 1px solid var(--color-border);
    gap: var(--spacing-1);
}

.nav-tabs .nav-link {
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    border: none;
    border-bottom: 2px solid transparent;
    background: transparent;
    transition: all var(--transition-fast);
}

.nav-tabs .nav-link:hover {
    color: var(--color-text-primary);
}

.nav-tabs .nav-link.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

/* Editor */
.editor-container {
    height: 100%;
}

.editor-textarea {
    width: 100%;
    height: 100%;
    padding: var(--spacing-4);
    font-family: var(--font-primary);
    font-size: var(--text-sm);
    line-height: 1.7;
    border: none;
    background-color: transparent;
    color: var(--color-text-primary);
    resize: none;
}

.editor-textarea:focus {
    outline: none;
}

.editor-textarea::placeholder {
    color: var(--color-text-muted);
    font-style: italic;
}

/* ============================================
   18. Upload / Drag & Drop
   ============================================ */

.upload-zone {
    padding: var(--spacing-8);
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-fast);
    cursor: pointer;
    background-color: var(--color-bg-app);
}

.upload-zone:hover,
.upload-zone.drag-over {
    border-color: var(--color-primary);
    background-color: var(--color-primary-light);
}

.upload-zone.error {
    border-color: var(--color-error);
    background-color: var(--color-error-bg);
}

.upload-icon {
    font-size: 48px;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-4);
}

.upload-zone.drag-over .upload-icon {
    color: var(--color-primary);
    animation: bounce 0.5s ease infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.upload-text {
    font-size: var(--text-base);
    color: var(--color-text-secondary);
}

.upload-text strong {
    color: var(--color-primary);
}

/* ============================================
   19. Modals
   ============================================ */

.modal-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.modal {
    background-color: var(--color-bg-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow: hidden;
    transform: scale(0.95);
    transition: transform var(--transition-fast);
}

.modal-overlay.show .modal {
    transform: scale(1);
}

/* Bootstrap Modal Compatibility */
.modal.fade .modal-dialog {
    transition: transform var(--transition-normal);
}

.modal-dialog {
    max-width: 500px;
    margin: 1.75rem auto;
}

.modal-dialog-lg {
    max-width: 800px;
}

.modal-content {
    background-color: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

.modal-header {
    padding: var(--spacing-5);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: var(--text-lg);
    font-weight: 600;
    margin: 0;
    color: var(--color-text-primary);
}

.modal-body {
    padding: var(--spacing-5);
    overflow-y: auto;
}

.modal-footer {
    padding: var(--spacing-4) var(--spacing-5);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-3);
    background-color: var(--color-bg-app);
}

.modal-backdrop {
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-backdrop.show {
    opacity: 1;
}

/* ============================================
   20. Loading States
   ============================================ */

/* Spinner */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
}

.spinner-border {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    border: 0.15em solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: spin 0.75s linear infinite;
}

.spinner-border-sm {
    width: 0.75rem;
    height: 0.75rem;
    border-width: 0.1em;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.spinner-lg {
    width: 40px;
    height: 40px;
    border-width: 3px;
}

/* Skeleton Loader */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-bg-app) 25%,
        var(--color-bg-hover) 50%,
        var(--color-bg-app) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: var(--radius-sm);
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.skeleton-text {
    height: 16px;
    margin-bottom: var(--spacing-2);
}

.skeleton-text:last-child {
    width: 60%;
}

.skeleton-title {
    height: 24px;
    width: 50%;
    margin-bottom: var(--spacing-4);
}

/* Pulse Animation */
.pulse {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ============================================
   21. Footer
   ============================================ */

.footer {
    padding: var(--spacing-4) var(--spacing-6);
    background-color: var(--color-bg-surface);
    border-top: 1px solid var(--color-border);
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    text-align: center;
}

.footer a {
    color: var(--color-text-muted);
}

.footer a:hover {
    color: var(--color-primary);
}

/* ============================================
   22. Grid System (Bootstrap compatible)
   ============================================ */

.container {
    width: 100%;
    padding-right: var(--spacing-4);
    padding-left: var(--spacing-4);
    margin-right: auto;
    margin-left: auto;
}

.container-fluid {
    width: 100%;
    padding-right: var(--spacing-4);
    padding-left: var(--spacing-4);
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin-right: calc(var(--spacing-4) * -0.5);
    margin-left: calc(var(--spacing-4) * -0.5);
}

[class*="col-"] {
    padding-right: calc(var(--spacing-4) * 0.5);
    padding-left: calc(var(--spacing-4) * 0.5);
}

.col { flex: 1 0 0%; }
.col-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
.col-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
.col-3 { flex: 0 0 25%; max-width: 25%; }
.col-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
.col-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
.col-6 { flex: 0 0 50%; max-width: 50%; }
.col-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
.col-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
.col-9 { flex: 0 0 75%; max-width: 75%; }
.col-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
.col-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
.col-12 { flex: 0 0 100%; max-width: 100%; }

@media (min-width: 576px) {
    .col-sm-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
    .col-sm-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
    .col-sm-3 { flex: 0 0 25%; max-width: 25%; }
    .col-sm-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .col-sm-6 { flex: 0 0 50%; max-width: 50%; }
    .col-sm-12 { flex: 0 0 100%; max-width: 100%; }
}

@media (min-width: 768px) {
    .col-md-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
    .col-md-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
    .col-md-3 { flex: 0 0 25%; max-width: 25%; }
    .col-md-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .col-md-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
    .col-md-6 { flex: 0 0 50%; max-width: 50%; }
    .col-md-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
    .col-md-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
    .col-md-9 { flex: 0 0 75%; max-width: 75%; }
    .col-md-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
    .col-md-12 { flex: 0 0 100%; max-width: 100%; }
}

@media (min-width: 992px) {
    .col-lg-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
    .col-lg-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
    .col-lg-3 { flex: 0 0 25%; max-width: 25%; }
    .col-lg-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .col-lg-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
    .col-lg-6 { flex: 0 0 50%; max-width: 50%; }
    .col-lg-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
    .col-lg-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
    .col-lg-9 { flex: 0 0 75%; max-width: 75%; }
    .col-lg-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
    .col-lg-12 { flex: 0 0 100%; max-width: 100%; }
}

@media (min-width: 1200px) {
    .col-xl-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
    .col-xl-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
    .col-xl-3 { flex: 0 0 25%; max-width: 25%; }
    .col-xl-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .col-xl-6 { flex: 0 0 50%; max-width: 50%; }
    .col-xl-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
    .col-xl-12 { flex: 0 0 100%; max-width: 100%; }
}

/* ============================================
   23. Utilities
   ============================================ */

/* Display */
.d-none { display: none !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }
.d-inline-flex { display: inline-flex !important; }
.d-grid { display: grid !important; }

/* Flexbox */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1 1 0%; }
.flex-grow-1 { flex-grow: 1; }
.flex-shrink-0 { flex-shrink: 0; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.justify-start { justify-content: flex-start; }

/* Bootstrap Flex Utilities */
.align-items-center { align-items: center !important; }
.align-items-start { align-items: flex-start !important; }
.align-items-end { align-items: flex-end !important; }
.justify-content-center { justify-content: center !important; }
.justify-content-between { justify-content: space-between !important; }
.justify-content-end { justify-content: flex-end !important; }

/* Gap */
.gap-1 { gap: var(--spacing-1); }
.gap-2 { gap: var(--spacing-2); }
.gap-3 { gap: var(--spacing-3); }
.gap-4 { gap: var(--spacing-4); }
.gap-5 { gap: var(--spacing-5); }

/* Margin */
.m-0 { margin: 0 !important; }
.m-1 { margin: var(--spacing-1) !important; }
.m-2 { margin: var(--spacing-2) !important; }
.m-3 { margin: var(--spacing-3) !important; }
.m-4 { margin: var(--spacing-4) !important; }
.m-5 { margin: var(--spacing-5) !important; }
.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: var(--spacing-1) !important; }
.mt-2 { margin-top: var(--spacing-2) !important; }
.mt-3 { margin-top: var(--spacing-3) !important; }
.mt-4 { margin-top: var(--spacing-4) !important; }
.mt-5 { margin-top: var(--spacing-5) !important; }
.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: var(--spacing-1) !important; }
.mb-2 { margin-bottom: var(--spacing-2) !important; }
.mb-3 { margin-bottom: var(--spacing-3) !important; }
.mb-4 { margin-bottom: var(--spacing-4) !important; }
.mb-5 { margin-bottom: var(--spacing-5) !important; }
.ms-1 { margin-left: var(--spacing-1) !important; }
.ms-2 { margin-left: var(--spacing-2) !important; }
.ms-3 { margin-left: var(--spacing-3) !important; }
.ms-auto { margin-left: auto !important; }
.me-1 { margin-right: var(--spacing-1) !important; }
.me-2 { margin-right: var(--spacing-2) !important; }
.me-3 { margin-right: var(--spacing-3) !important; }
.me-auto { margin-right: auto !important; }
.mx-auto { margin-left: auto !important; margin-right: auto !important; }
.my-2 { margin-top: var(--spacing-2) !important; margin-bottom: var(--spacing-2) !important; }
.my-3 { margin-top: var(--spacing-3) !important; margin-bottom: var(--spacing-3) !important; }
.my-4 { margin-top: var(--spacing-4) !important; margin-bottom: var(--spacing-4) !important; }

/* Padding */
.p-0 { padding: 0 !important; }
.p-1 { padding: var(--spacing-1) !important; }
.p-2 { padding: var(--spacing-2) !important; }
.p-3 { padding: var(--spacing-3) !important; }
.p-4 { padding: var(--spacing-4) !important; }
.p-5 { padding: var(--spacing-5) !important; }
.pt-0 { padding-top: 0 !important; }
.pt-2 { padding-top: var(--spacing-2) !important; }
.pt-3 { padding-top: var(--spacing-3) !important; }
.pt-4 { padding-top: var(--spacing-4) !important; }
.pb-0 { padding-bottom: 0 !important; }
.pb-2 { padding-bottom: var(--spacing-2) !important; }
.pb-3 { padding-bottom: var(--spacing-3) !important; }
.pb-4 { padding-bottom: var(--spacing-4) !important; }
.ps-2 { padding-left: var(--spacing-2) !important; }
.ps-3 { padding-left: var(--spacing-3) !important; }
.pe-2 { padding-right: var(--spacing-2) !important; }
.pe-3 { padding-right: var(--spacing-3) !important; }
.px-2 { padding-left: var(--spacing-2) !important; padding-right: var(--spacing-2) !important; }
.px-3 { padding-left: var(--spacing-3) !important; padding-right: var(--spacing-3) !important; }
.px-4 { padding-left: var(--spacing-4) !important; padding-right: var(--spacing-4) !important; }
.py-2 { padding-top: var(--spacing-2) !important; padding-bottom: var(--spacing-2) !important; }
.py-3 { padding-top: var(--spacing-3) !important; padding-bottom: var(--spacing-3) !important; }
.py-4 { padding-top: var(--spacing-4) !important; padding-bottom: var(--spacing-4) !important; }

/* Width & Height */
.w-100 { width: 100% !important; }
.w-auto { width: auto !important; }
.h-100 { height: 100% !important; }
.min-h-screen { min-height: 100vh; }

/* Text */
.text-center { text-align: center !important; }
.text-left { text-align: left !important; }
.text-right { text-align: right !important; }
.text-start { text-align: left !important; }
.text-end { text-align: right !important; }
.font-medium { font-weight: 500 !important; }
.font-semibold { font-weight: 600 !important; }
.font-bold { font-weight: 700 !important; }
.text-sm { font-size: var(--text-sm) !important; }
.text-xs { font-size: var(--text-xs) !important; }
.text-lg { font-size: var(--text-lg) !important; }
.text-truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Colors */
.text-primary { color: var(--color-primary) !important; }
.text-success { color: var(--color-success) !important; }
.text-warning { color: var(--color-warning) !important; }
.text-danger { color: var(--color-error) !important; }
.text-muted { color: var(--color-text-muted) !important; }
.text-secondary { color: var(--color-text-secondary) !important; }
.text-white { color: white !important; }

.bg-primary { background-color: var(--color-primary) !important; }
.bg-success { background-color: var(--color-success) !important; }
.bg-warning { background-color: var(--color-warning) !important; }
.bg-danger { background-color: var(--color-error) !important; }
.bg-light { background-color: var(--color-bg-app) !important; }
.bg-white { background-color: white !important; }
.bg-transparent { background-color: transparent !important; }

/* Border */
.border { border: 1px solid var(--color-border) !important; }
.border-0 { border: 0 !important; }
.border-top { border-top: 1px solid var(--color-border) !important; }
.border-bottom { border-bottom: 1px solid var(--color-border) !important; }
.rounded { border-radius: var(--radius-md) !important; }
.rounded-lg { border-radius: var(--radius-lg) !important; }
.rounded-full { border-radius: var(--radius-full) !important; }
.rounded-circle { border-radius: 50% !important; }

/* Shadow */
.shadow { box-shadow: var(--shadow-md) !important; }
.shadow-sm { box-shadow: var(--shadow-sm) !important; }
.shadow-lg { box-shadow: var(--shadow-lg) !important; }
.shadow-none { box-shadow: none !important; }

/* Position */
.position-relative { position: relative !important; }
.position-absolute { position: absolute !important; }
.position-fixed { position: fixed !important; }
.position-sticky { position: sticky !important; }

/* Overflow */
.overflow-auto { overflow: auto !important; }
.overflow-hidden { overflow: hidden !important; }
.overflow-visible { overflow: visible !important; }

/* Visibility */
.visible { visibility: visible !important; }
.invisible { visibility: hidden !important; }
.hidden { display: none !important; }

/* SR Only (Screen Reader) */
.sr-only,
.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* Cursor */
.cursor-pointer { cursor: pointer; }
.cursor-default { cursor: default; }
.cursor-not-allowed { cursor: not-allowed; }

/* ============================================
   24. Responsive Design
   ============================================ */

/* Mobile (< 768px) - Companion App Mode */
@media (max-width: 767px) {
    :root {
        --sidebar-width: 0px;
    }

    .sidebar {
        transform: translateX(-100%);
        width: var(--sidebar-expanded-width);
    }

    .sidebar.mobile-open {
        transform: translateX(0);
    }

    .topbar {
        left: 0;
        padding: 0 var(--spacing-4);
    }

    .main-content {
        margin-left: 0;
    }

    .mobile-menu-btn {
        display: flex;
    }

    /* Workstation simplified */
    .workstation {
        grid-template-columns: 1fr;
    }

    .ai-panel {
        display: none;
    }

    .bottom-panel {
        height: auto;
        max-height: 50vh;
    }

    /* Tables scroll horizontally */
    .table-wrapper {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    /* Hide on mobile */
    .d-none-mobile,
    .hide-mobile {
        display: none !important;
    }
}

/* Tablet (768px - 1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
    :root {
        --panel-right-width: 280px;
    }

    .workstation {
        grid-template-columns: 1fr var(--panel-right-width);
    }
}

/* Desktop (>= 1024px) */
@media (min-width: 1024px) {
    .mobile-menu-btn {
        display: none;
    }

    .hide-desktop {
        display: none !important;
    }
}

/* Large Desktop (>= 1440px) */
@media (min-width: 1440px) {
    :root {
        --panel-right-width: 400px;
    }
}

/* ============================================
   25. Print Styles
   ============================================ */

@media print {
    .sidebar,
    .topbar,
    .action-bar,
    .ai-panel,
    .chat-container,
    .btn,
    .no-print {
        display: none !important;
    }

    .main-content {
        margin: 0;
    }

    .content-wrapper {
        padding: 0;
    }

    body {
        background: white;
        color: black;
    }

    .card {
        border: 1px solid #ddd;
        box-shadow: none;
    }
}

/* ============================================
   26. Accessibility
   ============================================ */

/* Focus visible for keyboard navigation */
:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    :root {
        --color-border: #000000;
        --color-text-primary: #000000;
        --color-text-secondary: #000000;
    }

    [data-theme="dark"] {
        --color-border: #FFFFFF;
        --color-text-primary: #FFFFFF;
        --color-text-secondary: #FFFFFF;
    }
}

/* ============================================
   27. Dashboard Specific Components
   ============================================ */

/* Stats Cards */
.stats-card {
    background-color: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-5);
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.stats-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.stats-icon.primary {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
}

.stats-icon.success {
    background-color: var(--color-success-bg);
    color: var(--color-success);
}

.stats-icon.warning {
    background-color: var(--color-warning-bg);
    color: var(--color-warning);
}

.stats-content h3 {
    font-size: var(--text-2xl);
    font-weight: 700;
    margin: 0;
}

.stats-content p {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin: 0;
}

/* Recent Activity List */
.activity-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.activity-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    padding: var(--spacing-3) 0;
    border-bottom: 1px solid var(--color-border);
}

.activity-item:last-child {
    border-bottom: none;
}

.activity-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    flex-shrink: 0;
}

.activity-content {
    flex: 1;
    min-width: 0;
}

.activity-content p {
    margin: 0;
    font-size: var(--text-sm);
}

.activity-time {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-8);
    color: var(--color-text-muted);
}

.empty-state-icon {
    font-size: 64px;
    margin-bottom: var(--spacing-4);
    opacity: 0.5;
}

.empty-state h3 {
    font-size: var(--text-lg);
    margin-bottom: var(--spacing-2);
    color: var(--color-text-secondary);
}

.empty-state p {
    font-size: var(--text-sm);
    margin-bottom: var(--spacing-4);
}

/* Patient List */
.patient-list-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    padding: var(--spacing-4);
    background-color: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-3);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.patient-list-item:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

.patient-avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--text-lg);
    flex-shrink: 0;
}

.patient-info {
    flex: 1;
    min-width: 0;
}

.patient-name {
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0;
}

.patient-meta {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin: 0;
}

/* ============================================
   28. List Groups
   ============================================ */

.list-group {
    display: flex;
    flex-direction: column;
    padding-left: 0;
    margin-bottom: 0;
    border-radius: var(--radius-md);
}

.list-group-item {
    position: relative;
    display: block;
    padding: var(--spacing-3) var(--spacing-4);
    color: var(--color-text-primary);
    text-decoration: none;
    background-color: var(--color-bg-surface);
    border: 1px solid var(--color-border);
}

.list-group-item:first-child {
    border-top-left-radius: inherit;
    border-top-right-radius: inherit;
}

.list-group-item:last-child {
    border-bottom-right-radius: inherit;
    border-bottom-left-radius: inherit;
}

.list-group-item + .list-group-item {
    border-top-width: 0;
}

.list-group-item:hover {
    background-color: var(--color-bg-hover);
}

.list-group-item.active {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

/* ============================================
   29. Pagination
   ============================================ */

.pagination {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 0;
    gap: var(--spacing-1);
}

.page-item {
    display: flex;
}

.page-link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 var(--spacing-3);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    background-color: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.page-link:hover {
    background-color: var(--color-bg-hover);
    color: var(--color-text-primary);
}

.page-item.active .page-link {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

.page-item.disabled .page-link {
    opacity: 0.5;
    pointer-events: none;
}

/* ============================================
   30. Progress Bars
   ============================================ */

.progress {
    display: flex;
    height: 8px;
    overflow: hidden;
    background-color: var(--color-bg-app);
    border-radius: var(--radius-full);
}

.progress-bar {
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
    background-color: var(--color-primary);
    transition: width var(--transition-normal);
}

.progress-bar.bg-success {
    background-color: var(--color-success);
}

.progress-bar.bg-warning {
    background-color: var(--color-warning);
}

.progress-bar.bg-danger {
    background-color: var(--color-error);
}

/* ============================================
   31. Dashboard Styles
   ============================================ */

.dashboard-container {
    width: 100%;
}

/* Dashboard Hero Section */
.dashboard-hero {
    text-align: center;
    padding: var(--spacing-8) var(--spacing-4);
    margin-bottom: var(--spacing-6);
}

.dashboard-hero-content {
    max-width: 700px;
    margin: 0 auto;
    margin-top: 20px;
}

.dashboard-title {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-2);
}

.dashboard-subtitle {
    font-size: var(--text-base);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-6);
}

/* Global Search Styling */
.search-global {
    max-width: 600px;
    margin: 0 auto var(--spacing-6);
}

.search-global .search-input {
    font-size: var(--text-base);
    padding: var(--spacing-4) var(--spacing-5);
    padding-left: 52px;
    box-shadow: var(--shadow-lg);
}

.search-global .search-icon {
    left: var(--spacing-5);
    font-size: 20px;
}

/* Search Result Enhancements */
.search-result-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    text-decoration: none;
}

.search-result-item.active,
.search-result-item:hover {
    background-color: var(--color-bg-hover);
}

.search-result-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--text-sm);
    flex-shrink: 0;
}

.search-result-info {
    flex: 1;
    min-width: 0;
}

.search-result-name {
    font-weight: 500;
    color: var(--color-text-primary);
}

.search-result-meta {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
}

.search-result-arrow {
    color: var(--color-text-muted);
    font-size: 12px;
}

.search-result-empty {
    padding: var(--spacing-4);
    text-align: center;
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
}

/* Quick Actions */
.quick-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-3);
    flex-wrap: wrap;
}

/* Dashboard Stats Row */
.dashboard-stats-row {
    display: flex;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
    flex-wrap: wrap;
}

.dashboard-stats-row .stats-card {
    flex: 1;
    min-width: 140px;
}

@media (max-width: 768px) {
    .dashboard-stats-row {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Stats Icon Info variant */
.stats-icon.info {
    background-color: var(--color-info-bg);
    color: var(--color-info);
}

/* Dashboard Grid Layout */
.dashboard-grid {
    display: grid;
    gap: var(--spacing-6);
    grid-template-columns: 1fr 1fr;
    grid-template-areas:
        "activity  charts"
        "patients  patients";
}

.activity-section         { grid-area: activity; }
.charts-section           { grid-area: charts; }
.recent-patients-section  { grid-area: patients; }

/* Dashboard Sections */
.dashboard-section {
    min-width: 0;
}

@media (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
        grid-template-areas:
            "activity"
            "charts"
            "patients";
    }
}

/* Search filter chips */
.search-filters {
    display: flex;
    gap: var(--spacing-2);
    justify-content: center;
    margin-bottom: var(--spacing-5);
}

.chip-filter {
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border);
    background: var(--color-bg-surface);
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    font-family: var(--font-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.chip-filter:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.chip-filter.active {
    background: var(--color-primary);
    color: var(--color-text-inverted);
    border-color: var(--color-primary);
}

.chip-filter.chip-abr.active { background: #0EA5E9; border-color: #0EA5E9; }
.chip-filter.chip-vep.active { background: #8B5CF6; border-color: #8B5CF6; }
.chip-filter.chip-emg.active { background: #10B981; border-color: #10B981; }

/* Search keyboard shortcut hint */
.search-shortcut {
    position: absolute;
    right: var(--spacing-4);
    top: 50%;
    transform: translateY(-50%);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    background: var(--color-bg-app);
    border: 1px solid var(--color-border);
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    font-family: var(--font-mono);
    pointer-events: none;
}

/* Grouped search results */
.search-group-header {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: var(--color-bg-app);
    border-bottom: 1px solid var(--color-border);
}

/* Signal type avatar backgrounds for search */
.search-result-avatar.badge-signal-abr-bg { background: #E0F2FE; color: #0EA5E9; }
.search-result-avatar.badge-signal-vep-bg { background: #F5F3FF; color: #8B5CF6; }
.search-result-avatar.badge-signal-emg-bg { background: #ECFDF5; color: #10B981; }

[data-theme="dark"] .search-result-avatar.badge-signal-abr-bg { background: #0C4A6E; color: #38BDF8; }
[data-theme="dark"] .search-result-avatar.badge-signal-vep-bg { background: #4C1D95; color: #A78BFA; }
[data-theme="dark"] .search-result-avatar.badge-signal-emg-bg { background: #064E3B; color: #34D399; }

/* Stats trend indicators */
.stats-trend {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: var(--text-xs);
    font-weight: 500;
    margin-top: var(--spacing-1);
}

.stats-trend-up { color: var(--color-success); }
.stats-trend-up::before {
    content: '\f062';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    font-size: 10px;
}

.stats-trend-down { color: var(--color-error); }
.stats-trend-down::before {
    content: '\f063';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    font-size: 10px;
}

.stats-trend-flat { color: var(--color-text-muted); }

/* Signal type mini badges */
.badge-signal-abr { background: #0EA5E9; color: white; font-size: var(--text-xs); }
.badge-signal-vep { background: #8B5CF6; color: white; font-size: var(--text-xs); }
.badge-signal-emg { background: #10B981; color: white; font-size: var(--text-xs); }

.badge-xs {
    padding: 1px 6px;
    font-size: 10px;
    vertical-align: middle;
}

/* Clickable table rows */
.clickable-row {
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.clickable-row:hover {
    background-color: var(--color-bg-hover) !important;
}

/* Patient cell with avatar */
.patient-cell {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.patient-avatar-sm {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: var(--color-primary-light);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xs);
    font-weight: 600;
    flex-shrink: 0;
}

.patient-name {
    font-weight: 500;
    color: var(--color-text-primary);
    white-space: nowrap;
}

/* Table responsive wrapper */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* Card body with no padding */
.card-body.p-0 {
    padding: 0;
}

.card-body.p-0 .table {
    margin-bottom: 0;
}

.card-body.p-0 .table th:first-child,
.card-body.p-0 .table td:first-child {
    padding-left: var(--spacing-4);
}

.card-body.p-0 .table th:last-child,
.card-body.p-0 .table td:last-child {
    padding-right: var(--spacing-4);
}

/* Stats Grid */
.stats-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

@media (min-width: 1200px) {
    .stats-grid {
        flex-direction: column;
    }
}

@media (max-width: 1199px) and (min-width: 769px) {
    .stats-grid {
        flex-direction: row;
    }

    .stats-grid .stats-card {
        flex: 1;
    }
}

/* Signal Types List */
.signal-types-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.signal-type-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-2) 0;
}

.signal-type-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.signal-type-dot {
    width: 12px;
    height: 12px;
    border-radius: var(--radius-full);
}

.signal-type-name {
    font-weight: 500;
    color: var(--color-text-primary);
}

.signal-type-count {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--color-text-secondary);
}

/* Card Header with Actions */
.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-2);
}

.card-header .card-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.card-header .card-title i {
    font-size: 18px;
}

body,
body * {
    transition: background-color var(--transition-normal),
                color var(--transition-normal),
                border-color var(--transition-normal),
                box-shadow var(--transition-normal);
}

/* ============================================
   32. Flatpickr Custom Styles (Date Picker)
   ============================================ */

/* Main container */
.flatpickr-calendar {
    background: var(--color-bg-surface) !important;
    border: 1px solid var(--color-border) !important;
    border-radius: var(--radius-lg) !important;
    box-shadow: var(--shadow-xl) !important;
    font-family: var(--font-primary) !important;
    width: 320px !important;
    padding: var(--spacing-2) !important;
}

.flatpickr-calendar.arrowTop:before,
.flatpickr-calendar.arrowTop:after,
.flatpickr-calendar.arrowBottom:before,
.flatpickr-calendar.arrowBottom:after {
    display: none !important;
}

/* Months navigation */
.flatpickr-months {
    padding: var(--spacing-2) var(--spacing-2) var(--spacing-3) !important;
    border-bottom: 1px solid var(--color-border) !important;
    margin-bottom: var(--spacing-2) !important;
}

.flatpickr-months .flatpickr-month {
    background: transparent !important;
    height: 40px !important;
}

.flatpickr-current-month {
    font-size: var(--text-base) !important;
    font-weight: 600 !important;
    color: var(--color-text-primary) !important;
    padding: 0 !important;
}

.flatpickr-current-month .flatpickr-monthDropdown-months {
    background: var(--color-bg-surface) !important;
    color: var(--color-text-primary) !important;
    border: 1px solid var(--color-border) !important;
    border-radius: var(--radius-sm) !important;
    font-weight: 600 !important;
    padding: var(--spacing-1) var(--spacing-2) !important;
    cursor: pointer !important;
    appearance: none !important;
}

.flatpickr-current-month .flatpickr-monthDropdown-months:hover {
    background: var(--color-bg-hover) !important;
}

.flatpickr-current-month input.cur-year {
    background: transparent !important;
    color: var(--color-text-primary) !important;
    font-weight: 600 !important;
    font-size: var(--text-base) !important;
    padding: var(--spacing-1) !important;
}

.flatpickr-current-month input.cur-year:focus {
    outline: none !important;
}

/* Navigation arrows */
.flatpickr-months .flatpickr-prev-month,
.flatpickr-months .flatpickr-next-month {
    padding: var(--spacing-2) !important;
    border-radius: var(--radius-sm) !important;
    transition: all var(--transition-fast) !important;
    top: 12px !important;
}

.flatpickr-months .flatpickr-prev-month:hover,
.flatpickr-months .flatpickr-next-month:hover {
    background: var(--color-bg-hover) !important;
}

.flatpickr-months .flatpickr-prev-month svg,
.flatpickr-months .flatpickr-next-month svg {
    fill: var(--color-text-secondary) !important;
    width: 14px !important;
    height: 14px !important;
}

.flatpickr-months .flatpickr-prev-month:hover svg,
.flatpickr-months .flatpickr-next-month:hover svg {
    fill: var(--color-primary) !important;
}

/* Weekdays header */
.flatpickr-weekdays {
    background: transparent !important;
    padding: var(--spacing-2) 0 !important;
}

.flatpickr-weekday {
    background: transparent !important;
    color: var(--color-text-muted) !important;
    font-size: var(--text-xs) !important;
    font-weight: 600 !important;
    text-transform: uppercase !important;
    letter-spacing: 0.05em !important;
}

/* Days container */
.flatpickr-days {
    width: 100% !important;
}

.dayContainer {
    width: 100% !important;
    min-width: 100% !important;
    max-width: 100% !important;
    padding: 0 var(--spacing-1) !important;
}

/* Individual day cells */
.flatpickr-day {
    background: transparent !important;
    border: none !important;
    border-radius: var(--radius-sm) !important;
    color: var(--color-text-primary) !important;
    font-size: var(--text-sm) !important;
    font-weight: 500 !important;
    height: 38px !important;
    line-height: 38px !important;
    margin: 2px !important;
    max-width: 38px !important;
    transition: all var(--transition-fast) !important;
}

.flatpickr-day:hover {
    background: var(--color-bg-hover) !important;
    border: none !important;
}

.flatpickr-day.today {
    border: 2px solid var(--color-primary) !important;
    background: var(--color-primary-light) !important;
}

.flatpickr-day.today:hover {
    background: var(--color-primary-light) !important;
    color: var(--color-primary) !important;
}

.flatpickr-day.selected,
.flatpickr-day.startRange,
.flatpickr-day.endRange,
.flatpickr-day.selected.inRange,
.flatpickr-day.startRange.inRange,
.flatpickr-day.endRange.inRange,
.flatpickr-day.selected:focus,
.flatpickr-day.startRange:focus,
.flatpickr-day.endRange:focus,
.flatpickr-day.selected:hover,
.flatpickr-day.startRange:hover,
.flatpickr-day.endRange:hover,
.flatpickr-day.selected.prevMonthDay,
.flatpickr-day.startRange.prevMonthDay,
.flatpickr-day.endRange.prevMonthDay,
.flatpickr-day.selected.nextMonthDay,
.flatpickr-day.startRange.nextMonthDay,
.flatpickr-day.endRange.nextMonthDay {
    background: var(--color-primary) !important;
    border: none !important;
    color: white !important;
    box-shadow: var(--shadow-sm) !important;
}

.flatpickr-day.inRange {
    background: var(--color-primary-light) !important;
    border: none !important;
    box-shadow: none !important;
}

.flatpickr-day.flatpickr-disabled,
.flatpickr-day.flatpickr-disabled:hover,
.flatpickr-day.prevMonthDay,
.flatpickr-day.nextMonthDay,
.flatpickr-day.notAllowed,
.flatpickr-day.notAllowed.prevMonthDay,
.flatpickr-day.notAllowed.nextMonthDay {
    color: var(--color-text-muted) !important;
    opacity: 0.4 !important;
    background: transparent !important;
    cursor: not-allowed !important;
}

/* Time picker */
.flatpickr-time {
    border-top: 1px solid var(--color-border) !important;
    margin-top: var(--spacing-2) !important;
    padding-top: var(--spacing-3) !important;
    background: transparent !important;
    max-height: 50px !important;
}

.flatpickr-time input {
    background: var(--color-bg-app) !important;
    border: 1px solid var(--color-border) !important;
    border-radius: var(--radius-sm) !important;
    color: var(--color-text-primary) !important;
    font-family: var(--font-mono) !important;
    font-size: var(--text-sm) !important;
    font-weight: 500 !important;
    padding: var(--spacing-2) !important;
}

.flatpickr-time input:hover,
.flatpickr-time input:focus {
    background: var(--color-bg-surface) !important;
    border-color: var(--color-primary) !important;
}

.flatpickr-time .flatpickr-time-separator {
    color: var(--color-text-muted) !important;
    font-weight: 600 !important;
}

.flatpickr-time .flatpickr-am-pm {
    background: var(--color-bg-app) !important;
    border: 1px solid var(--color-border) !important;
    border-radius: var(--radius-sm) !important;
    color: var(--color-text-primary) !important;
    font-weight: 500 !important;
    padding: var(--spacing-2) var(--spacing-3) !important;
}

.flatpickr-time .flatpickr-am-pm:hover,
.flatpickr-time .flatpickr-am-pm:focus {
    background: var(--color-bg-hover) !important;
    border-color: var(--color-primary) !important;
}

.numInputWrapper {
    background: transparent !important;
}

.numInputWrapper:hover {
    background: transparent !important;
}

.numInputWrapper span {
    border: none !important;
    background: transparent !important;
}

.numInputWrapper span:hover {
    background: var(--color-bg-hover) !important;
}

.numInputWrapper span:after {
    border-color: var(--color-text-muted) transparent transparent !important;
}

.numInputWrapper span.arrowUp:after {
    border-color: transparent transparent var(--color-text-muted) !important;
}

/* Custom date input styling */
.flatpickr-input {
    cursor: pointer !important;
}

.flatpickr-input[readonly] {
    cursor: pointer !important;
    background: var(--color-bg-app) !important;
}

/* Date input wrapper with icon */
.date-input-wrapper {
    position: relative;
}

.date-input-wrapper .form-input {
    padding-right: var(--spacing-8) !important;
    cursor: pointer;
}

.date-input-wrapper .date-icon {
    position: absolute;
    right: var(--spacing-3);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    pointer-events: none;
    transition: color var(--transition-fast);
}

.date-input-wrapper:hover .date-icon,
.date-input-wrapper:focus-within .date-icon {
    color: var(--color-primary);
}

/* Dark mode adjustments */
[data-theme="dark"] .flatpickr-calendar {
    background: var(--color-bg-surface) !important;
}

[data-theme="dark"] .flatpickr-day.today {
    background: rgba(14, 165, 233, 0.2) !important;
}

[data-theme="dark"] .flatpickr-day.inRange {
    background: rgba(14, 165, 233, 0.15) !important;
}