/**
 * TravelGang - Complete Theme System
 * Integrates all styling components for consistent design
 */

/* Import all component styles */
@import url('main.css');
@import url('responsive.css');
@import url('branding.css');
@import url('content-enhancements.css');
@import url('messaging-enhancements.css');
@import url('polling-animations.css');

/* Theme Configuration */
:root {
    /* Theme Mode Variables */
    --theme-mode: light;
    
    /* Semantic Color System */
    --color-background: #ffffff;
    --color-surface: #f8f9fa;
    --color-surface-variant: #e9ecef;
    --color-on-background: #212529;
    --color-on-surface: #495057;
    --color-on-surface-variant: #6c757d;
    
    /* Interactive States */
    --color-hover: rgba(37, 99, 235, 0.08);
    --color-focus: rgba(37, 99, 235, 0.12);
    --color-pressed: rgba(37, 99, 235, 0.16);
    --color-selected: rgba(37, 99, 235, 0.24);
    
    /* Elevation System */
    --elevation-0: none;
    --elevation-1: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
    --elevation-2: 0 3px 6px rgba(0, 0, 0, 0.16), 0 3px 6px rgba(0, 0, 0, 0.23);
    --elevation-3: 0 10px 20px rgba(0, 0, 0, 0.19), 0 6px 6px rgba(0, 0, 0, 0.23);
    --elevation-4: 0 14px 28px rgba(0, 0, 0, 0.25), 0 10px 10px rgba(0, 0, 0, 0.22);
    --elevation-5: 0 19px 38px rgba(0, 0, 0, 0.30), 0 15px 12px rgba(0, 0, 0, 0.22);
    
    /* Motion System */
    --motion-duration-short: 150ms;
    --motion-duration-medium: 300ms;
    --motion-duration-long: 500ms;
    --motion-easing-standard: cubic-bezier(0.4, 0.0, 0.2, 1);
    --motion-easing-decelerate: cubic-bezier(0.0, 0.0, 0.2, 1);
    --motion-easing-accelerate: cubic-bezier(0.4, 0.0, 1, 1);
}

/* Dark Theme Variables */
[data-theme="dark"] {
    --theme-mode: dark;
    
    --color-background: #0d1117;
    --color-surface: #161b22;
    --color-surface-variant: #21262d;
    --color-on-background: #f0f6fc;
    --color-on-surface: #e6edf3;
    --color-on-surface-variant: #8b949e;
    
    --color-hover: rgba(37, 99, 235, 0.15);
    --color-focus: rgba(37, 99, 235, 0.20);
    --color-pressed: rgba(37, 99, 235, 0.25);
    --color-selected: rgba(37, 99, 235, 0.35);
    
    /* Enhanced shadows for dark theme */
    --elevation-1: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.4);
    --elevation-2: 0 3px 6px rgba(0, 0, 0, 0.4), 0 3px 6px rgba(0, 0, 0, 0.5);
    --elevation-3: 0 10px 20px rgba(0, 0, 0, 0.5), 0 6px 6px rgba(0, 0, 0, 0.6);
    --elevation-4: 0 14px 28px rgba(0, 0, 0, 0.6), 0 10px 10px rgba(0, 0, 0, 0.7);
    --elevation-5: 0 19px 38px rgba(0, 0, 0, 0.7), 0 15px 12px rgba(0, 0, 0, 0.8);
}

/* Base Theme Application */
body {
    background-color: var(--color-background);
    color: var(--color-on-background);
    transition: background-color var(--motion-duration-medium) var(--motion-easing-standard),
                color var(--motion-duration-medium) var(--motion-easing-standard);
}

/* Surface Components */
.surface {
    background-color: var(--color-surface);
    color: var(--color-on-surface);
}

.surface-variant {
    background-color: var(--color-surface-variant);
    color: var(--color-on-surface-variant);
}

/* Elevation System */
.elevation-0 { box-shadow: var(--elevation-0); }
.elevation-1 { box-shadow: var(--elevation-1); }
.elevation-2 { box-shadow: var(--elevation-2); }
.elevation-3 { box-shadow: var(--elevation-3); }
.elevation-4 { box-shadow: var(--elevation-4); }
.elevation-5 { box-shadow: var(--elevation-5); }

/* Interactive States */
.interactive {
    transition: all var(--motion-duration-short) var(--motion-easing-standard);
    cursor: pointer;
}

.interactive:hover {
    background-color: var(--color-hover);
}

.interactive:focus {
    background-color: var(--color-focus);
    outline: 2px solid var(--brand-primary);
    outline-offset: 2px;
}

.interactive:active {
    background-color: var(--color-pressed);
}

.interactive.selected {
    background-color: var(--color-selected);
}

/* Enhanced Component Theming */

/* Navigation Theme */
.navbar {
    background-color: var(--color-surface) !important;
    border-bottom: 1px solid var(--color-surface-variant);
    backdrop-filter: blur(20px);
}

.navbar-light .navbar-nav .nav-link {
    color: var(--color-on-surface);
}

.navbar-light .navbar-nav .nav-link:hover {
    color: var(--brand-primary);
    background-color: var(--color-hover);
}

/* Card Theme */
.card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-surface-variant);
    color: var(--color-on-surface);
}

.card-header {
    background-color: var(--color-surface-variant);
    border-bottom: 1px solid var(--color-surface-variant);
    color: var(--color-on-surface);
}

/* Form Theme */
.form-control,
.form-select {
    background-color: var(--color-surface);
    border: 1px solid var(--color-surface-variant);
    color: var(--color-on-surface);
}

.form-control:focus,
.form-select:focus {
    background-color: var(--color-surface);
    border-color: var(--brand-primary);
    color: var(--color-on-surface);
}

.form-control::placeholder {
    color: var(--color-on-surface-variant);
}

/* Modal Theme */
.modal-content {
    background-color: var(--color-surface);
    color: var(--color-on-surface);
    border: 1px solid var(--color-surface-variant);
}

.modal-header {
    border-bottom: 1px solid var(--color-surface-variant);
}

.modal-footer {
    border-top: 1px solid var(--color-surface-variant);
}

/* Dropdown Theme */
.dropdown-menu {
    background-color: var(--color-surface);
    border: 1px solid var(--color-surface-variant);
    color: var(--color-on-surface);
}

.dropdown-item {
    color: var(--color-on-surface);
}

.dropdown-item:hover {
    background-color: var(--color-hover);
    color: var(--color-on-surface);
}

.dropdown-item.active {
    background-color: var(--brand-primary);
    color: white;
}

/* Alert Theme */
.alert {
    border: 1px solid var(--color-surface-variant);
}

/* Table Theme */
.table {
    color: var(--color-on-surface);
}

.table-striped > tbody > tr:nth-of-type(odd) > td,
.table-striped > tbody > tr:nth-of-type(odd) > th {
    background-color: var(--color-surface-variant);
}

.table-hover > tbody > tr:hover > td,
.table-hover > tbody > tr:hover > th {
    background-color: var(--color-hover);
}

/* Breadcrumb Theme */
.breadcrumb {
    background-color: var(--color-surface-variant);
    color: var(--color-on-surface-variant);
}

.breadcrumb-item a {
    color: var(--brand-primary);
}

/* Pagination Theme */
.page-link {
    background-color: var(--color-surface);
    border: 1px solid var(--color-surface-variant);
    color: var(--color-on-surface);
}

.page-link:hover {
    background-color: var(--color-hover);
    border-color: var(--brand-primary);
    color: var(--color-on-surface);
}

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

/* Progress Theme */
.progress {
    background-color: var(--color-surface-variant);
}

.progress-bar {
    background: var(--brand-gradient-primary);
}

/* List Group Theme */
.list-group-item {
    background-color: var(--color-surface);
    border: 1px solid var(--color-surface-variant);
    color: var(--color-on-surface);
}

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

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

/* Accordion Theme */
.accordion-item {
    background-color: var(--color-surface);
    border: 1px solid var(--color-surface-variant);
}

.accordion-header button {
    background-color: var(--color-surface);
    color: var(--color-on-surface);
}

.accordion-header button:hover {
    background-color: var(--color-hover);
}

.accordion-body {
    background-color: var(--color-surface);
    color: var(--color-on-surface);
}

/* Offcanvas Theme */
.offcanvas {
    background-color: var(--color-surface);
    color: var(--color-on-surface);
}

.offcanvas-header {
    border-bottom: 1px solid var(--color-surface-variant);
}

/* Toast Theme */
.toast {
    background-color: var(--color-surface);
    border: 1px solid var(--color-surface-variant);
    color: var(--color-on-surface);
}

.toast-header {
    background-color: var(--color-surface-variant);
    color: var(--color-on-surface-variant);
}

/* Tooltip Theme */
.tooltip .tooltip-inner {
    background-color: var(--color-on-surface);
    color: var(--color-surface);
}

/* Popover Theme */
.popover {
    background-color: var(--color-surface);
    border: 1px solid var(--color-surface-variant);
}

.popover-header {
    background-color: var(--color-surface-variant);
    border-bottom: 1px solid var(--color-surface-variant);
    color: var(--color-on-surface);
}

.popover-body {
    color: var(--color-on-surface);
}

/* Theme Toggle Component */
.theme-toggle {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 1050;
    background: var(--brand-gradient-primary);
    color: white;
    border: none;
    border-radius: 50%;
    width: 3.5rem;
    height: 3.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: var(--elevation-3);
    transition: all var(--motion-duration-medium) var(--motion-easing-standard);
    cursor: pointer;
}

.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: var(--elevation-4);
}

.theme-toggle:active {
    transform: scale(0.95);
}

/* Responsive Theme Adjustments */
@media (max-width: 768px) {
    .theme-toggle {
        bottom: 1rem;
        right: 1rem;
        width: 3rem;
        height: 3rem;
        font-size: 1rem;
    }
}

/* High Contrast Theme */
@media (prefers-contrast: high) {
    :root {
        --brand-primary: #000000;
        --brand-secondary: #000000;
        --color-surface-variant: #cccccc;
    }
    
    [data-theme="dark"] {
        --brand-primary: #ffffff;
        --brand-secondary: #ffffff;
        --color-surface-variant: #333333;
    }
    
    .btn,
    .card,
    .form-control,
    .dropdown-menu {
        border-width: 2px;
    }
}

/* Reduced Motion Theme */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .theme-toggle:hover {
        transform: none;
    }
}

/* Dark Theme Specific Enhancements */
[data-theme="dark"] {
    /* Better text contrast */
    .text-muted {
        color: var(--color-on-surface-variant) !important;
    }
    
    .text-secondary {
        color: var(--color-on-surface-variant) !important;
    }
    
    /* Enhanced form controls for dark theme */
    .form-control:disabled,
    .form-control[readonly] {
        background-color: var(--color-surface-variant);
        opacity: 0.8;
    }
    
    /* Better button contrast */
    .btn-outline-secondary {
        color: var(--color-on-surface);
        border-color: var(--color-on-surface-variant);
    }
    
    .btn-outline-secondary:hover {
        background-color: var(--color-on-surface-variant);
        border-color: var(--color-on-surface-variant);
        color: var(--color-background);
    }
    
    /* Enhanced navbar for dark theme */
    .navbar-light .navbar-brand {
        color: var(--color-on-surface) !important;
    }
    
    .navbar-light .navbar-toggler {
        border-color: var(--color-surface-variant);
    }
    
    .navbar-light .navbar-toggler-icon {
        background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28240, 246, 252, 0.75%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='m4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    }
    
    /* Better alert contrast */
    .alert-info {
        background: linear-gradient(135deg, #1c2e4a 0%, #2d4a6b 100%);
        color: #b3d4fc;
        border-left-color: #58a6ff;
    }
    
    .alert-success {
        background: linear-gradient(135deg, #0f2419 0%, #1a4c2e 100%);
        color: #aff5b4;
        border-left-color: #3fb950;
    }
    
    .alert-warning {
        background: linear-gradient(135deg, #2d2408 0%, #4a3d0f 100%);
        color: #f2cc60;
        border-left-color: #d29922;
    }
    
    .alert-danger {
        background: linear-gradient(135deg, #2d0a0f 0%, #4a1319 100%);
        color: #ffa8a8;
        border-left-color: #f85149;
    }
    
    /* Better badge contrast */
    .badge.bg-secondary {
        background-color: var(--color-surface-variant) !important;
        color: var(--color-on-surface) !important;
    }
    
    /* Enhanced code blocks */
    code {
        background-color: var(--color-surface-variant);
        color: #ff7b72;
        padding: 0.2em 0.4em;
        border-radius: 3px;
    }
    
    pre {
        background-color: var(--color-surface-variant);
        color: var(--color-on-surface);
        border: 1px solid var(--color-surface-variant);
    }
    
    /* Better link contrast */
    a {
        color: #58a6ff;
    }
    
    a:hover {
        color: #79c0ff;
    }
    
    /* Enhanced blockquote */
    blockquote {
        border-left: 4px solid var(--brand-primary);
        background-color: var(--color-surface-variant);
        color: var(--color-on-surface);
    }
}

/* Print Theme */
@media print {
    :root {
        --color-background: #ffffff;
        --color-surface: #ffffff;
        --color-on-background: #000000;
        --color-on-surface: #000000;
    }
    
    .theme-toggle {
        display: none !important;
    }
    
    .card,
    .modal-content,
    .dropdown-menu {
        border: 1px solid #000000 !important;
        box-shadow: none !important;
    }
    
    .btn {
        background: none !important;
        color: #000000 !important;
        border: 1px solid #000000 !important;
    }
}

/* Theme Menu Styling */
.theme-option {
    position: relative;
    transition: all var(--motion-duration-short) var(--motion-easing-standard);
}

.theme-option.active {
    background-color: var(--brand-primary) !important;
    color: white !important;
}

.theme-option.active::after {
    content: '✓';
    position: absolute;
    right: 1rem;
    font-weight: bold;
}

.theme-option:not(.active):hover {
    background-color: var(--color-hover);
    color: var(--color-on-surface);
}

/* Theme Utilities */
.theme-surface {
    background-color: var(--color-surface);
    color: var(--color-on-surface);
}

.theme-surface-variant {
    background-color: var(--color-surface-variant);
    color: var(--color-on-surface-variant);
}

.theme-primary {
    background-color: var(--brand-primary);
    color: white;
}

.theme-gradient {
    background: var(--brand-gradient-primary);
    color: white;
}

.theme-text-primary {
    color: var(--brand-primary);
}

.theme-text-on-surface {
    color: var(--color-on-surface);
}

.theme-text-on-surface-variant {
    color: var(--color-on-surface-variant);
}

.theme-border {
    border-color: var(--color-surface-variant);
}

.theme-border-primary {
    border-color: var(--brand-primary);
}

/* Animation Classes for Theme Transitions */
.theme-transition {
    transition: background-color var(--motion-duration-medium) var(--motion-easing-standard),
                color var(--motion-duration-medium) var(--motion-easing-standard),
                border-color var(--motion-duration-medium) var(--motion-easing-standard);
}

.theme-transition-fast {
    transition: background-color var(--motion-duration-short) var(--motion-easing-standard),
                color var(--motion-duration-short) var(--motion-easing-standard),
                border-color var(--motion-duration-short) var(--motion-easing-standard);
}

.theme-transition-slow {
    transition: background-color var(--motion-duration-long) var(--motion-easing-standard),
                color var(--motion-duration-long) var(--motion-easing-standard),
                border-color var(--motion-duration-long) var(--motion-easing-standard);
}