/*
 * BOS Dashboard - Main Stylesheet
 * HTMX-based UI with dark mode support
 * 
 * Structure:
 * 1. CSS Reset & Base
 * 2. CSS Variables (Light/Dark themes)
 * 3. Typography
 * 4. Layout Utilities
 * 5. Form Elements
 * 6. Buttons
 * 7. Cards & Panels
 * 8. Tables
 * 9. Status Indicators
 * 10. Navigation (Navbar, Sidebar)
 * 11. Toasts & Notifications
 * 12. Loading States
 * 13. Responsive Breakpoints
 */

/* ============================================
   1. CSS RESET & BASE
   ============================================ */

/* Utility class for CSP-compliant visibility */
.hidden {
    display: none !important;
}

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

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

body {
    min-height: 100vh;
    line-height: 1.5;
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color 0.2s ease, color 0.2s ease;
}

img, picture, video, canvas, svg {
    display: block;
    max-width: 100%;
}

input, button, textarea, select {
    font: inherit;
}

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

a:hover {
    text-decoration: underline;
}

ul, ol {
    list-style: none;
}

/* ============================================
   2. CSS VARIABLES
   ============================================ */

:root {
    /* Brand Colors */
    --color-primary: #1e40af;
    --color-primary-hover: #1d4ed8;
    --color-primary-light: #3b82f6;
    --color-secondary: #64748b;
    --color-secondary-hover: #475569;
    --color-accent: #f59e0b;
    --color-accent-hover: #d97706;

    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-elevated: #ffffff;

    /* Text Colors */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --text-inverse: #ffffff;

    /* Border Colors */
    --border-color: #e2e8f0;
    --border-color-strong: #cbd5e1;

    /* Status Colors */
    --status-active: #22c55e;
    --status-active-bg: #dcfce7;
    --status-warning: #eab308;
    --status-warning-bg: #fef9c3;
    --status-error: #ef4444;
    --status-error-bg: #fee2e2;
    --status-idle: #94a3b8;
    --status-idle-bg: #f1f5f9;
    --status-info: #3b82f6;
    --status-info-bg: #dbeafe;

    /* Layout */
    --sidebar-width: 240px;
    --sidebar-collapsed-width: 64px;
    --navbar-height: 64px;
    --content-max-width: 1400px;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-full: 9999px;

    /* 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);

    /* Typography */
    --font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, monospace;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 200ms ease;
    --transition-slow: 300ms ease;

    /* Z-Index Scale */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-toast: 600;
}

/* Dark Mode */
:root.dark {
    /* Brand Colors (adjusted for dark bg) */
    --color-primary: #3b82f6;
    --color-primary-hover: #60a5fa;
    --color-primary-light: #93c5fd;
    --color-secondary: #94a3b8;
    --color-secondary-hover: #cbd5e1;
    --color-accent: #fbbf24;
    --color-accent-hover: #fcd34d;

    /* Background Colors */
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-elevated: #1e293b;

    /* Text Colors */
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-inverse: #0f172a;

    /* Border Colors */
    --border-color: #334155;
    --border-color-strong: #475569;

    /* Status Colors (brighter for dark mode) */
    --status-active: #4ade80;
    --status-active-bg: #14532d;
    --status-warning: #facc15;
    --status-warning-bg: #713f12;
    --status-error: #f87171;
    --status-error-bg: #7f1d1d;
    --status-idle: #64748b;
    --status-idle-bg: #334155;
    --status-info: #60a5fa;
    --status-info-bg: #1e3a5f;

    /* 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);
}

/* ============================================
   3. TYPOGRAPHY
   ============================================ */

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

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.875rem; }

.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }

.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.text-primary-color { color: var(--color-primary); }

.font-mono { font-family: var(--font-mono); }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

/* ============================================
   4. LAYOUT UTILITIES
   ============================================ */

.container {
    width: 100%;
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* Flexbox */
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1 1 0%; }
.flex-auto { flex: 1 1 auto; }
.flex-none { flex: none; }

.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.items-stretch { align-items: stretch; }

.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }

.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

/* Grid */
.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* Spacing */
.m-0 { margin: 0; }
.m-auto { margin: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }
.my-auto { margin-top: auto; margin-bottom: auto; }

.mt-xs { margin-top: var(--space-xs); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

.mb-xs { margin-bottom: var(--space-xs); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

.ml-auto { margin-left: auto; }
.mr-auto { margin-right: auto; }

.p-0 { padding: 0; }
.p-xs { padding: var(--space-xs); }
.p-sm { padding: var(--space-sm); }
.p-md { padding: var(--space-md); }
.p-lg { padding: var(--space-lg); }
.p-xl { padding: var(--space-xl); }

.px-sm { padding-left: var(--space-sm); padding-right: var(--space-sm); }
.px-md { padding-left: var(--space-md); padding-right: var(--space-md); }
.px-lg { padding-left: var(--space-lg); padding-right: var(--space-lg); }

.py-sm { padding-top: var(--space-sm); padding-bottom: var(--space-sm); }
.py-md { padding-top: var(--space-md); padding-bottom: var(--space-md); }
.py-lg { padding-top: var(--space-lg); padding-bottom: var(--space-lg); }

/* Width/Height */
.w-full { width: 100%; }
.h-full { height: 100%; }
.min-h-screen { min-height: 100vh; }

/* Visibility */
.hidden { display: none; }
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* ============================================
   5. FORM ELEMENTS
   ============================================ */

.form-group {
    margin-bottom: var(--space-md);
}

.form-label {
    display: block;
    margin-bottom: var(--space-xs);
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--text-primary);
}

.form-input,
.form-select,
.form-textarea {
    display: block;
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    font-size: 1rem;
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgb(59 130 246 / 0.2);
}

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

.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
    background-color: var(--bg-tertiary);
    cursor: not-allowed;
    opacity: 0.7;
}

.form-input.error,
.form-select.error {
    border-color: var(--status-error);
}

.form-input.error:focus,
.form-select.error:focus {
    box-shadow: 0 0 0 3px rgb(239 68 68 / 0.2);
}

.form-error {
    margin-top: var(--space-xs);
    font-size: 0.875rem;
    color: var(--status-error);
}

.form-hint {
    margin-top: var(--space-xs);
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Search Input */
.search-input {
    padding-left: 2.5rem;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2394a3b8'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: 0.75rem center;
    background-size: 1.25rem;
}

/* ============================================
   6. BUTTONS
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.5;
    text-align: center;
    text-decoration: none;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn:hover {
    text-decoration: none;
}

.btn:disabled,
.btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
}

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

.btn-secondary:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--border-color-strong);
}

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

.btn-outline:hover {
    background-color: var(--color-primary);
    color: var(--text-inverse);
}

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

.btn-danger:hover {
    background-color: #dc2626;
    border-color: #dc2626;
}

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

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

/* Button Sizes */
.btn-sm {
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.75rem;
}

.btn-lg {
    padding: var(--space-md) var(--space-lg);
    font-size: 1rem;
}

.btn-block {
    display: flex;
    width: 100%;
}

/* Icon Button */
.btn-icon {
    padding: var(--space-sm);
    width: 2.25rem;
    height: 2.25rem;
}

.btn-icon svg {
    width: 1.25rem;
    height: 1.25rem;
}

/* ============================================
   7. CARDS & PANELS
   ============================================ */

.card {
    background-color: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.card-header {
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--border-color);
}

.card-body {
    padding: var(--space-lg);
}

.card-footer {
    padding: var(--space-md) var(--space-lg);
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Panel (larger card variant) */
.panel {
    background-color: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-md);
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.panel-title {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}

.panel-body {
    padding: var(--space-md);
}

/* ============================================
   8. TABLES
   ============================================ */

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

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.table th,
.table td {
    padding: var(--space-sm) var(--space-md);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.table th {
    font-weight: 600;
    color: var(--text-secondary);
    background-color: var(--bg-secondary);
    white-space: nowrap;
}

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

.table tbody tr:last-child td {
    border-bottom: none;
}

/* Striped Table */
.table-striped tbody tr:nth-child(even) {
    background-color: var(--bg-secondary);
}

/* Compact Table */
.table-compact th,
.table-compact td {
    padding: var(--space-xs) var(--space-sm);
}

/* ============================================
   9. STATUS INDICATORS
   ============================================ */

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-full);
}

.status-active {
    background-color: var(--status-active-bg);
    color: var(--status-active);
}

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

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

.status-idle {
    background-color: var(--status-idle-bg);
    color: var(--status-idle);
}

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

/* Status Dot */
.status-dot {
    display: inline-block;
    width: 0.5rem;
    height: 0.5rem;
    border-radius: var(--radius-full);
}

.status-dot.active { background-color: var(--status-active); }
.status-dot.warning { background-color: var(--status-warning); }
.status-dot.error { background-color: var(--status-error); }
.status-dot.idle { background-color: var(--status-idle); }

/* Pulsing Status Dot (for active connections) */
.status-dot.pulse {
    animation: pulse 2s infinite;
}

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

/* ============================================
   10. NAVIGATION
   ============================================ */

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--navbar-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-lg);
    background-color: var(--bg-elevated);
    border-bottom: 1px solid var(--border-color);
    z-index: var(--z-fixed);
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.navbar-logo {
    height: 40px;
    width: auto;
}

.navbar-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.navbar-stats {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    padding-right: var(--space-lg);
    border-right: 1px solid var(--border-color);
}

.navbar-stat {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.875rem;
}

.navbar-stat-label {
    color: var(--text-muted);
}

.navbar-stat-value {
    font-weight: 600;
    color: var(--text-primary);
}

/* Mini Progress Bar (for CPU/Memory in navbar) */
.mini-progress {
    width: 60px;
    height: 6px;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.mini-progress-bar {
    height: 100%;
    background-color: var(--color-primary);
    transition: width var(--transition-normal);
}

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

.mini-progress-bar.error {
    background-color: var(--status-error);
}

/* Stat Mini Bar (Server Stats in Navbar) */
.stat-mini-bar {
    width: 40px;
    height: 4px;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.stat-mini-bar-fill {
    height: 100%;
    background-color: var(--status-success);
    transition: width var(--transition-normal);
}

.stat-bar-warning {
    background-color: var(--status-warning);
}

.stat-bar-danger {
    background-color: var(--status-error);
}

.stat-value-warning {
    color: var(--status-warning);
}

/* User Menu */
.user-menu {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.user-role-label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding-right: var(--space-sm);
    border-right: 1px solid var(--border-color);
}

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

/* Sidebar */
.sidebar {
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background-color: var(--bg-elevated);
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    z-index: var(--z-sticky);
}

.sidebar-nav {
    padding: var(--space-md);
}

.sidebar-section {
    margin-bottom: var(--space-lg);
}

.sidebar-section-title {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.sidebar-link:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    text-decoration: none;
}

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

.sidebar-link svg {
    width: 1.25rem;
    height: 1.25rem;
    flex-shrink: 0;
}

/* Main Content Area */
.main-content {
    margin-left: var(--sidebar-width);
    margin-top: var(--navbar-height);
    min-height: calc(100vh - var(--navbar-height));
    padding: var(--space-lg);
    background-color: var(--bg-secondary);
}

/* ============================================
   11. TOASTS & NOTIFICATIONS
   ============================================ */

.toast-container {
    position: fixed;
    top: calc(var(--navbar-height) + var(--space-md));
    right: var(--space-md);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    max-width: 400px;
}

.toast {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    padding: var(--space-md);
    background-color: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.2s ease-out;
}

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

.toast.toast-out {
    animation: slideOut 0.2s ease-in forwards;
}

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

.toast-icon {
    flex-shrink: 0;
    width: 1.25rem;
    height: 1.25rem;
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    color: var(--text-primary);
}

.toast-message {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.toast-close {
    flex-shrink: 0;
    padding: var(--space-xs);
    color: var(--text-muted);
    cursor: pointer;
    border: none;
    background: none;
}

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

.toast-success .toast-icon { color: var(--status-active); }
.toast-error .toast-icon { color: var(--status-error); }
.toast-warning .toast-icon { color: var(--status-warning); }
.toast-info .toast-icon { color: var(--status-info); }

/* ============================================
   11.5 ALERTS (Inline Messages)
   ============================================ */

.alert {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
}

.alert-icon {
    flex-shrink: 0;
    font-weight: 600;
}

.alert-message {
    flex: 1;
}

.alert-error {
    background-color: var(--status-error-bg);
    color: var(--status-error);
    border: 1px solid var(--status-error);
}

.alert-warning {
    background-color: var(--status-warning-bg);
    color: #92400e;
    border: 1px solid var(--status-warning);
}

:root.dark .alert-warning {
    color: var(--status-warning);
}

.alert-success {
    background-color: var(--status-active-bg);
    color: #166534;
    border: 1px solid var(--status-active);
}

:root.dark .alert-success {
    color: var(--status-active);
}

.alert-info {
    background-color: var(--status-info-bg);
    color: #1e40af;
    border: 1px solid var(--status-info);
}

:root.dark .alert-info {
    color: var(--status-info);
}

/* ============================================
   12. LOADING STATES
   ============================================ */

/* Spinner */
.spinner {
    display: inline-block;
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid var(--border-color);
    border-top-color: var(--color-primary);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
}

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

.spinner-sm {
    width: 1rem;
    height: 1rem;
    border-width: 1.5px;
}

.spinner-lg {
    width: 2rem;
    height: 2rem;
    border-width: 3px;
}

/* HTMX Loading Indicator */
.htmx-indicator {
    display: none;
}

.htmx-request .htmx-indicator {
    display: inline-block;
}

.htmx-request.htmx-indicator {
    display: inline-block;
}

/* Skeleton Loading */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--bg-tertiary) 25%,
        var(--bg-secondary) 50%,
        var(--bg-tertiary) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

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

.skeleton-text {
    height: 1rem;
    margin-bottom: var(--space-sm);
}

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

/* ============================================
   13. RESPONSIVE BREAKPOINTS
   ============================================ */

@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform var(--transition-normal);
    }

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

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

    .navbar-stats {
        display: none;
    }
}

@media (max-width: 768px) {
    :root {
        --navbar-height: 56px;
    }

    .navbar-title {
        display: none;
    }

    .user-role-label {
        display: none;
    }

    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: 1fr;
    }

    .card-body {
        padding: var(--space-md);
    }

    .toast-container {
        left: var(--space-md);
        right: var(--space-md);
        max-width: none;
    }
}

/* ============================================
   14. LOGIN PAGE SPECIFIC
   ============================================ */

.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--space-lg);
    background-color: var(--bg-secondary);
}

.login-card {
    width: 100%;
    max-width: 400px;
}

.login-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.login-logo {
    width: 80px;
    height: auto;
    margin: 0 auto var(--space-md);
}

.login-subtitle {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.login-divider {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin: var(--space-lg) 0;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.login-divider::before,
.login-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background-color: var(--border-color);
}

/* MFA Code Input */
.mfa-code-input {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    letter-spacing: 0.5em;
    text-align: center;
    padding: var(--space-md);
}

.mfa-code-input::placeholder {
    letter-spacing: 0.25em;
    opacity: 0.4;
}

/* ============================================
   15. DARK MODE TOGGLE
   ============================================ */

.dark-mode-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    padding: 0;
    background: none;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.dark-mode-toggle:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.dark-mode-toggle svg {
    width: 1.25rem;
    height: 1.25rem;
    pointer-events: none;
}

.dark-mode-toggle svg * {
    pointer-events: none;
}

/* Show sun in dark mode, moon in light mode */
.dark-mode-toggle .icon-sun { display: none; }
.dark-mode-toggle .icon-moon { display: block; }

:root.dark .dark-mode-toggle .icon-sun { display: block; }
:root.dark .dark-mode-toggle .icon-moon { display: none; }

/* ============================================
   16. MESSAGE TRAFFIC LOG
   ============================================ */

.message-log {
    max-height: 500px;
    overflow-y: auto;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
}

.message-entry {
    display: flex;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-sm);
    border-bottom: 1px solid var(--border-color);
}

.message-entry:hover {
    background-color: var(--bg-tertiary);
}

.message-time {
    color: var(--text-muted);
    white-space: nowrap;
}

.message-direction {
    width: 1.5rem;
    text-align: center;
    font-weight: 600;
}

.message-direction.inbound { color: var(--status-info); }
.message-direction.outbound { color: var(--status-active); }

.message-type {
    color: var(--color-accent);
    font-weight: 500;
    min-width: 5rem;
}

.message-content {
    color: var(--text-primary);
    flex: 1;
    word-break: break-all;
}

/* ============================================
   16. DASHBOARD LAYOUT
   ============================================ */

.dashboard {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    height: 100%;
    min-height: 0;
}

.dashboard-header {
    flex-shrink: 0;
}

.loco-selector-card {
    padding: var(--space-lg);
}

.loco-selector-row {
    display: flex;
    gap: var(--space-lg);
    align-items: center;
    margin-bottom: var(--space-md);
}

.loco-search-group {
    flex: 1;
    max-width: 300px;
}

.search-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: var(--space-sm);
    width: 1.25rem;
    height: 1.25rem;
    color: var(--text-muted);
    pointer-events: none;
}

.search-input {
    padding-left: 2.5rem;
}

.loco-select-group {
    flex: 2;
    max-width: 400px;
}

.loco-dropdown {
    width: 100%;
}

/* Locomotive Status Counts */
.loco-counts {
    display: flex;
    gap: var(--space-lg);
    flex-wrap: wrap;
}

.loco-count {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-md);
    background-color: var(--bg-tertiary);
    font-size: var(--text-sm);
}

.count-indicator {
    font-size: 0.875rem;
}

.count-label {
    color: var(--text-secondary);
}

.count-value {
    font-weight: 600;
    color: var(--text-primary);
    min-width: 2rem;
    text-align: right;
}

.status-active { color: var(--status-active); }
.status-degraded { color: var(--status-warning); }
.status-idle { color: var(--text-muted); }
.status-error { color: var(--status-error); }

/* Dashboard Two-Column Layout */
.dashboard-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-lg);
    flex: 1;
    min-height: 0;
    overflow: hidden;
}

.dashboard-column {
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden;
}

.dashboard-column-left {
    min-width: 300px;
}

.dashboard-column-right {
    min-width: 400px;
}

/* Locomotive Detail Panel */
.loco-detail-panel {
    height: 100%;
    overflow-y: auto;
}

.loco-detail-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: var(--space-xl);
    color: var(--text-muted);
    text-align: center;
}

.placeholder-icon {
    width: 4rem;
    height: 4rem;
    margin-bottom: var(--space-md);
    opacity: 0.5;
}

/* Message Traffic Panel */
.message-traffic-panel {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

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

.panel-actions {
    display: flex;
    gap: var(--space-sm);
    align-items: center;
}

.message-list {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-md);
}

.message-list-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
    padding: var(--space-xl);
}

.export-disabled {
    pointer-events: none;
    opacity: 0.5;
}

.btn-active {
    background-color: var(--bg-tertiary);
    color: var(--color-accent);
}

/* Responsive Dashboard */
@media (max-width: 1024px) {
    .dashboard-content {
        grid-template-columns: 1fr;
    }
    
    .dashboard-column-left,
    .dashboard-column-right {
        min-width: 0;
    }
    
    .loco-selector-row {
        flex-direction: column;
        align-items: stretch;
    }
    
    .loco-search-group,
    .loco-select-group {
        max-width: none;
    }
    
    .loco-counts {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .panel-header {
        flex-direction: column;
        gap: var(--space-sm);
    }
    
    .panel-actions {
        width: 100%;
        justify-content: space-between;
    }
}

/* ============================================
   17. LOCOMOTIVE STATUS COLORS
   ============================================ */

/* Dropdown option colors by PTC status */
.loco-option.loco-status-active {
    color: var(--status-active);
}

.loco-option.loco-status-degraded {
    color: var(--status-warning);
}

.loco-option.loco-status-idle {
    color: var(--text-muted);
}

.loco-option.loco-status-error {
    color: var(--status-error);
}

/* Status badge for locomotive detail */
.loco-status-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 500;
}

.loco-status-badge.status-active {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--status-active);
}

.loco-status-badge.status-degraded {
    background-color: rgba(245, 158, 11, 0.1);
    color: var(--status-warning);
}

.loco-status-badge.status-idle {
    background-color: var(--bg-tertiary);
    color: var(--text-muted);
}

.loco-status-badge.status-error {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--status-error);
}

/* ============================================
   18. LOCOMOTIVE DETAIL PANEL
   ============================================ */

.loco-detail-content {
    padding: var(--space-lg);
}

.loco-detail-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
}

.loco-detail-title {
    font-size: var(--text-xl);
    font-weight: 600;
    margin: 0;
}

.loco-detail-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.detail-label {
    font-size: var(--text-sm);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.detail-value {
    font-size: var(--text-base);
    font-weight: 500;
    color: var(--text-primary);
}

.detail-divider {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: var(--space-lg) 0;
}

.section-title {
    font-size: var(--text-base);
    font-weight: 600;
    margin: 0 0 var(--space-md) 0;
    color: var(--text-secondary);
}

.consist-section {
    margin-top: var(--space-md);
}

.loading-placeholder {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--text-muted);
    padding: var(--space-md);
}

.spinner {
    width: 1rem;
    height: 1rem;
    border: 2px solid var(--border-color);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.text-warning {
    color: var(--status-warning);
}

/* Responsive detail grid */
@media (max-width: 480px) {
    .loco-detail-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   19. CONSIST TABLE
   ============================================ */

.consist-empty {
    padding: var(--space-md);
    text-align: center;
    color: var(--text-muted);
}

.consist-info-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

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

.consist-table th,
.consist-table td {
    padding: var(--space-xs) var(--space-sm);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

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

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

.consist-meta {
    display: flex;
    justify-content: space-between;
    font-size: var(--text-xs);
    color: var(--text-muted);
    padding-top: var(--space-xs);
}

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

/* ============================================
   20. MESSAGE TRAFFIC
   ============================================ */

.message-list-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: var(--space-xl);
    text-align: center;
    color: var(--text-muted);
}

.message-traffic-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.message-entry {
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    background-color: var(--bg-secondary);
    border-left: 3px solid transparent;
    transition: background-color var(--transition-fast);
}

.message-entry:hover {
    background-color: var(--bg-tertiary);
}

.message-entry.message-inbound {
    border-left-color: var(--status-info);
}

.message-entry.message-outbound {
    border-left-color: var(--status-active);
}

.message-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-xs);
}

.message-time {
    font-size: var(--text-xs);
    color: var(--text-muted);
    white-space: nowrap;
}

.message-direction {
    font-size: var(--text-sm);
    font-weight: 600;
    width: 1.25rem;
    text-align: center;
}

.message-direction.inbound {
    color: var(--status-info);
}

.message-direction.outbound {
    color: var(--status-active);
}

.message-type {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-accent);
}

.message-body {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: 1.5;
    padding-left: calc(var(--space-sm) + 1.25rem + var(--space-sm));
}

.text-sm {
    font-size: var(--text-sm);
}

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

/* ============================================
   21. ADMIN PAGES
   ============================================ */

.admin-page {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.page-header {
    margin-bottom: var(--space-md);
}

.page-title {
    font-size: var(--text-2xl);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.page-subtitle {
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin: var(--space-xs) 0 0;
}

.admin-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    align-items: center;
    padding: var(--space-md);
}

.toolbar-search {
    flex: 1;
    min-width: 200px;
}

.toolbar-filters {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.toolbar-filters .input {
    min-width: 150px;
}

.toolbar-actions {
    display: flex;
    gap: var(--space-sm);
}

/* Data Table */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm);
}

.data-table th,
.data-table td {
    padding: var(--space-sm) var(--space-md);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

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

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

.data-table .action-cell {
    white-space: nowrap;
    width: 1%;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md);
    border-top: 1px solid var(--border-color);
}

.pagination-info {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.pagination-controls {
    display: flex;
    gap: var(--space-md);
    align-items: center;
}

.pagination-pages {
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

/* Empty State */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-2xl);
    text-align: center;
    color: var(--text-muted);
}

.empty-state svg {
    margin-bottom: var(--space-md);
    opacity: 0.5;
}

.empty-state p {
    margin: 0;
}

/* Font utilities */
.font-bold {
    font-weight: 600;
}

/* Text warning */
.text-warning {
    color: var(--status-warning);
}

/* Territory Grid and Cards */
.territory-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-lg);
    padding: var(--space-md);
}

.territory-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.territory-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transform: translateY(-2px);
}

.territory-card.territory-inactive {
    opacity: 0.6;
    background: var(--bg-tertiary);
}

.territory-header {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.territory-title-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-sm);
}

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

.territory-id {
    font-size: var(--text-xs);
    color: var(--text-muted);
}

.territory-badges {
    display: flex;
    gap: var(--space-xs);
    flex-wrap: wrap;
}

.territory-stats {
    display: flex;
    gap: var(--space-lg);
    padding: var(--space-sm) 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-value {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.stat-label {
    font-size: var(--text-xs);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.territory-subdivisions {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.subdivisions-label {
    font-size: var(--text-xs);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.subdivisions-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.subdivision-tag {
    font-size: var(--text-xs);
    padding: 2px 8px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
}

.territory-actions {
    display: flex;
    gap: var(--space-sm);
    padding-top: var(--space-sm);
    margin-top: auto;
}

/* Text error utility */
.text-error {
    color: var(--status-error);
}

/* User Table Styles */
.user-cell {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.user-avatar {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    font-size: var(--text-xs);
    font-weight: 600;
    flex-shrink: 0;
}

.row-inactive {
    opacity: 0.6;
    background-color: var(--bg-tertiary);
}

.action-buttons {
    display: flex;
    gap: var(--space-xs);
}

/* Muted text utility */
.text-muted {
    color: var(--text-muted);
}

/* Settings Page Styles */
.settings-tabs {
    display: flex;
    flex-direction: column;
}

.tab-list {
    display: flex;
    gap: var(--space-xs);
    padding: var(--space-md);
    border-bottom: 1px solid var(--border-color);
    overflow-x: auto;
}

.tab-button {
    padding: var(--space-sm) var(--space-md);
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: var(--text-sm);
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s ease;
}

.tab-button:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.tab-button.active {
    background: var(--primary-color);
    color: white;
}

.tab-content {
    padding: var(--space-lg);
}

.settings-section {
    margin-bottom: var(--space-xl);
}

.settings-section:last-child {
    margin-bottom: 0;
}

.section-header {
    margin-bottom: var(--space-md);
}

.section-header h3 {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 var(--space-xs);
}

.policy-card {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: var(--space-md);
}

.policy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-md);
}

.policy-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.policy-label {
    font-size: var(--text-xs);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.policy-value {
    font-size: var(--text-base);
    font-weight: 500;
    color: var(--text-primary);
}

.limits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-md);
}

.limit-card {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    text-align: center;
}

.limit-value {
    display: block;
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--space-xs);
}

.limit-label {
    font-size: var(--text-xs);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.info-label {
    font-size: var(--text-xs);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.info-value {
    font-size: var(--text-base);
    color: var(--text-primary);
}

.feature-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}


/* ===========================================
   Error Pages
   =========================================== */

.error-page-body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
}

.error-page {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--space-xl);
    text-align: center;
}

.error-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    max-width: 500px;
}

.error-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin-bottom: var(--space-md);
}

.error-icon svg {
    opacity: 0.9;
}

.error-icon.error-404 {
    background: rgba(var(--warning-rgb, 245, 158, 11), 0.1);
    color: var(--warning, #f59e0b);
}

.error-icon.error-403 {
    background: rgba(var(--danger-rgb, 239, 68, 68), 0.1);
    color: var(--danger, #ef4444);
}

.error-icon.error-500 {
    background: rgba(var(--danger-rgb, 239, 68, 68), 0.1);
    color: var(--danger, #ef4444);
}

.error-code {
    font-size: 6rem;
    font-weight: 700;
    line-height: 1;
    margin: 0;
    color: var(--text-primary);
    opacity: 0.9;
}

.error-title {
    font-size: var(--text-2xl);
    font-weight: 600;
    margin: 0;
    color: var(--text-primary);
}

.error-message {
    font-size: var(--text-base);
    color: var(--text-muted);
    margin: var(--space-sm) 0 var(--space-lg) 0;
    line-height: 1.6;
}

.error-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    justify-content: center;
    margin-top: var(--space-md);
}

.error-actions .btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--text-sm);
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

.error-actions .btn-primary {
    background: var(--accent-primary);
    color: var(--text-on-accent, #fff);
}

.error-actions .btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

.error-actions .btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border-primary);
}

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

.error-footer {
    margin-top: var(--space-2xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border-primary);
}

.error-footer p {
    font-size: var(--text-xs);
    color: var(--text-muted);
    margin: 0;
}

@media (max-width: 480px) {
    .error-code {
        font-size: 4rem;
    }
    
    .error-icon {
        width: 100px;
        height: 100px;
    }
    
    .error-icon svg {
        width: 60px;
        height: 60px;
    }
    
    .error-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .error-actions .btn {
        width: 100%;
        justify-content: center;
    }
}