/* ============================================================================
   TipsChampions - Main Stylesheet
   ============================================================================
   Step 23C Revised: Base styles with CSS variables
   Dark theme styles are in separate file: dark-theme.css
   ============================================================================ */

/* ============================================================================
   ROOT VARIABLES - LIGHT THEME (Default)
   ============================================================================
   These variables provide a unified theming system across the entire app.
   Dark theme overrides are in dark-theme.css
   ============================================================================ */

:root {
    /* ===== Brand Colors ===== */
    --tc-primary: #667eea;
    --tc-primary-hover: #5568d3;
    --tc-primary-light: rgba(102, 126, 234, 0.1);
    --tc-primary-rgb: 102, 126, 234;
    
    --tc-secondary: #764ba2;
    --tc-secondary-hover: #653d8c;
    --tc-secondary-light: rgba(118, 75, 162, 0.1);
    --tc-secondary-rgb: 118, 75, 162;
    
    /* ===== Semantic Colors ===== */
    --tc-success: #28a745;
    --tc-success-hover: #218838;
    --tc-success-light: rgba(40, 167, 69, 0.1);
    
    --tc-danger: #dc3545;
    --tc-danger-hover: #c82333;
    --tc-danger-light: rgba(220, 53, 69, 0.1);
    
    --tc-warning: #ffc107;
    --tc-warning-hover: #e0a800;
    --tc-warning-light: rgba(255, 193, 7, 0.1);
    --tc-warning-text: #856404;
    
    --tc-info: #17a2b8;
    --tc-info-hover: #138496;
    --tc-info-light: rgba(23, 162, 184, 0.1);
    
    /* ===== Background Colors ===== */
    --tc-bg-body: #f8f9fa;
    --tc-bg-surface: #ffffff;
    --tc-bg-surface-hover: #f8f9fa;
    --tc-bg-surface-active: #e9ecef;
    --tc-bg-muted: #f5f6fa;
    --tc-bg-highlight: rgba(102, 126, 234, 0.05);
    
    /* ===== Text Colors ===== */
    --tc-text-primary: #212529;
    --tc-text-secondary: #6c757d;
    --tc-text-muted: #9ca3af;
    --tc-text-light: #adb5bd;
    --tc-text-inverse: #ffffff;
    --tc-text-link: var(--tc-primary);
    --tc-text-link-hover: var(--tc-primary-hover);
    
    /* ===== Border Colors ===== */
    --tc-border-color: #dee2e6;
    --tc-border-light: #e9ecef;
    --tc-border-dark: #ced4da;
    --tc-border-focus: var(--tc-primary);
    
    /* ===== Shadow ===== */
    --tc-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --tc-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --tc-shadow-md: 0 6px 12px rgba(0, 0, 0, 0.1);
    --tc-shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.15);
    --tc-shadow-focus: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
    
    /* ===== Gradient ===== */
    --tc-gradient-primary: linear-gradient(135deg, var(--tc-primary) 0%, var(--tc-secondary) 100%);
    --tc-gradient-dark: linear-gradient(180deg, #1a1d2e 0%, #13151f 100%);
    
    /* ===== Typography ===== */
    --tc-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --tc-font-mono: SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;
    
    --tc-font-size-xs: 0.75rem;
    --tc-font-size-sm: 0.875rem;
    --tc-font-size-base: 1rem;
    --tc-font-size-lg: 1.125rem;
    --tc-font-size-xl: 1.25rem;
    --tc-font-size-2xl: 1.5rem;
    --tc-font-size-3xl: 1.875rem;
    --tc-font-size-4xl: 2.25rem;
    
    --tc-font-weight-normal: 400;
    --tc-font-weight-medium: 500;
    --tc-font-weight-semibold: 600;
    --tc-font-weight-bold: 700;
    
    --tc-line-height-tight: 1.25;
    --tc-line-height-normal: 1.5;
    --tc-line-height-relaxed: 1.75;
    
    /* ===== Spacing ===== */
    --tc-spacing-xs: 0.25rem;
    --tc-spacing-sm: 0.5rem;
    --tc-spacing-md: 1rem;
    --tc-spacing-lg: 1.5rem;
    --tc-spacing-xl: 2rem;
    --tc-spacing-2xl: 3rem;
    
    /* ===== Border Radius ===== */
    --tc-radius-sm: 0.25rem;
    --tc-radius: 0.5rem;
    --tc-radius-md: 0.75rem;
    --tc-radius-lg: 1rem;
    --tc-radius-xl: 1.5rem;
    --tc-radius-full: 9999px;
    
    /* ===== Transitions ===== */
    --tc-transition-fast: 0.15s ease;
    --tc-transition: 0.3s ease;
    --tc-transition-slow: 0.5s ease;
    
    /* ===== Z-Index Scale ===== */
    --tc-z-dropdown: 1000;
    --tc-z-sticky: 1020;
    --tc-z-fixed: 1030;
    --tc-z-modal-backdrop: 1040;
    --tc-z-modal: 1050;
    --tc-z-popover: 1060;
    --tc-z-tooltip: 1070;
    
    /* ===== Component-Specific ===== */
    
    /* Cards */
    --tc-card-bg: var(--tc-bg-surface);
    --tc-card-border: var(--tc-border-light);
    --tc-card-shadow: var(--tc-shadow-sm);
    --tc-card-shadow-hover: var(--tc-shadow-md);
    
    /* Forms */
    --tc-input-bg: var(--tc-bg-surface);
    --tc-input-border: var(--tc-border-color);
    --tc-input-text: var(--tc-text-primary);
    --tc-input-placeholder: var(--tc-text-muted);
    --tc-input-focus-border: var(--tc-primary);
    --tc-input-focus-shadow: var(--tc-shadow-focus);
    --tc-input-disabled-bg: var(--tc-bg-muted);
    
    /* Tables */
    --tc-table-bg: var(--tc-bg-surface);
    --tc-table-border: var(--tc-border-light);
    --tc-table-header-bg: var(--tc-bg-muted);
    --tc-table-header-text: var(--tc-text-secondary);
    --tc-table-row-hover: var(--tc-bg-surface-hover);
    --tc-table-stripe-bg: rgba(0, 0, 0, 0.02);
    
    /* Navbar */
    --tc-navbar-bg: var(--tc-gradient-primary);
    --tc-navbar-text: var(--tc-text-inverse);
    
    /* Footer */
    --tc-footer-bg: var(--tc-bg-muted);
    --tc-footer-border: var(--tc-border-light);
    --tc-footer-text: var(--tc-text-secondary);
    
    /* Badges */
    --tc-badge-font-size: var(--tc-font-size-xs);
    
    /* Alerts */
    --tc-alert-border-radius: var(--tc-radius);
    
    /* Scrollbar */
    --tc-scrollbar-track: #f1f1f1;
    --tc-scrollbar-thumb: var(--tc-primary);
    --tc-scrollbar-thumb-hover: var(--tc-primary-hover);
}


/* ============================================================================
   BASE STYLES
   ============================================================================ */

body {
    background-color: var(--tc-bg-body);
    color: var(--tc-text-primary);
    font-family: var(--tc-font-family);
    transition: background-color var(--tc-transition), color var(--tc-transition);
}


/* ============================================================================
   COMPONENT STYLES (using CSS variables)
   ============================================================================ */

/* Custom Primary Color */
.bg-primary {
    background: var(--tc-gradient-primary) !important;
}

.btn-primary {
    background: var(--tc-gradient-primary);
    border: none;
    transition: all var(--tc-transition);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(var(--tc-primary-rgb), 0.4);
}

.btn-primary:active {
    transform: translateY(0);
}

/* Card Enhancements */
.card {
    background-color: var(--tc-card-bg);
    border: 1px solid var(--tc-card-border);
    border-radius: var(--tc-radius-lg);
    transition: transform var(--tc-transition), box-shadow var(--tc-transition),
                background-color var(--tc-transition), border-color var(--tc-transition);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--tc-card-shadow-hover);
}

.card-header {
    background-color: var(--tc-bg-muted);
    border-bottom-color: var(--tc-border-light);
}

.card-footer {
    background-color: var(--tc-bg-muted);
    border-top-color: var(--tc-border-light);
}

/* Form Enhancements */
.form-control,
.form-select {
    background-color: var(--tc-input-bg);
    color: var(--tc-input-text);
    border-color: var(--tc-input-border);
    transition: border-color var(--tc-transition-fast), box-shadow var(--tc-transition-fast),
                background-color var(--tc-transition), color var(--tc-transition);
}

.form-control:focus,
.form-select:focus {
    background-color: var(--tc-input-bg);
    color: var(--tc-input-text);
    border-color: var(--tc-input-focus-border);
    box-shadow: var(--tc-input-focus-shadow);
}

.form-control::placeholder {
    color: var(--tc-input-placeholder);
}

.form-control:disabled,
.form-select:disabled {
    background-color: var(--tc-input-disabled-bg);
}

.input-group-text {
    background-color: var(--tc-bg-muted);
    color: var(--tc-text-secondary);
    border-color: var(--tc-input-border);
}

.form-label {
    color: var(--tc-text-primary);
}

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

/* Alert Animations */
.alert {
    animation: slideDown 0.3s ease;
    border-radius: var(--tc-alert-border-radius);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Navbar Enhancements */
.navbar-brand {
    font-size: var(--tc-font-size-2xl);
    transition: transform var(--tc-transition);
}

.navbar-brand:hover {
    transform: scale(1.05);
}

.nav-link {
    position: relative;
    transition: color var(--tc-transition);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--tc-text-inverse);
    transition: all var(--tc-transition);
    transform: translateX(-50%);
}

.nav-link:hover::after {
    width: 80%;
}

/* Footer Styling */
footer {
    background-color: var(--tc-footer-bg);
    border-top: 1px solid var(--tc-footer-border);
    color: var(--tc-footer-text);
    transition: background-color var(--tc-transition), border-color var(--tc-transition);
}

footer a {
    color: var(--tc-text-secondary);
    transition: color var(--tc-transition);
}

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

/* Badge Styling */
.badge {
    padding: 0.5em 0.75em;
    border-radius: var(--tc-radius);
    font-size: var(--tc-badge-font-size);
}

/* Table Enhancements */
.table {
    background-color: var(--tc-table-bg);
    border-radius: var(--tc-radius-md);
    overflow: hidden;
    color: var(--tc-text-primary);
}

.table thead th {
    background: var(--tc-gradient-primary);
    color: var(--tc-text-inverse);
    border: none;
}

.table td,
.table th {
    border-color: var(--tc-table-border);
}

.table tbody tr {
    transition: background-color var(--tc-transition-fast);
}

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

/* Loading Spinner */
.spinner-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 200px;
}

/* Responsive Utilities */
@media (max-width: 768px) {
    .card-body.p-5 {
        padding: var(--tc-spacing-xl) !important;
    }
    
    .display-4 {
        font-size: var(--tc-font-size-4xl);
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--tc-scrollbar-thumb);
    border-radius: 5px;
}

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

/* Emoji Support */
.emoji {
    font-size: 1.5em;
    vertical-align: middle;
}

/* Tournament Cards */
.tournament-card {
    position: relative;
    overflow: hidden;
}

.tournament-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--tc-gradient-primary);
}

/* Leaderboard Styling */
.leaderboard-position {
    width: 40px;
    height: 40px;
    border-radius: var(--tc-radius-full);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--tc-font-weight-bold);
}

.leaderboard-position.first {
    background: linear-gradient(135deg, #FFD700, #FFA500);
    color: var(--tc-text-inverse);
}

.leaderboard-position.second {
    background: linear-gradient(135deg, #C0C0C0, #A8A8A8);
    color: var(--tc-text-inverse);
}

.leaderboard-position.third {
    background: linear-gradient(135deg, #CD7F32, #B8860B);
    color: var(--tc-text-inverse);
}

/* Match Cards */
.match-card {
    border-left: 4px solid var(--tc-primary);
    transition: all var(--tc-transition);
}

.match-card:hover {
    border-left-width: 8px;
    padding-left: calc(var(--tc-spacing-md) - 4px);
}

/* Bet Status Indicators */
.bet-status {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: var(--tc-radius-full);
    margin-right: 8px;
}

.bet-status.pending {
    background-color: var(--tc-warning);
}

.bet-status.won {
    background-color: var(--tc-success);
}

.bet-status.lost {
    background-color: var(--tc-danger);
}


/* ============================================================================
   DROPDOWN MENUS
   ============================================================================ */

.dropdown-menu {
    background-color: var(--tc-bg-surface);
    border-color: var(--tc-border-color);
    box-shadow: var(--tc-shadow-md);
}

.dropdown-item {
    color: var(--tc-text-primary);
    transition: background-color var(--tc-transition-fast), color var(--tc-transition-fast);
}

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

.dropdown-divider {
    border-color: var(--tc-border-light);
}

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


/* ============================================================================
   MODAL SUPPORT
   ============================================================================ */

.modal-content {
    background-color: var(--tc-bg-surface);
    border-color: var(--tc-border-color);
}

.modal-header {
    border-color: var(--tc-border-light);
}

.modal-footer {
    border-color: var(--tc-border-light);
}

.modal-title {
    color: var(--tc-text-primary);
}

.btn-close {
    filter: var(--tc-btn-close-filter, none);
}


/* ============================================================================
   TEXT UTILITIES (Theme-Aware)
   ============================================================================ */

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

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

.border {
    border-color: var(--tc-border-color) !important;
}

.border-bottom {
    border-bottom-color: var(--tc-border-color) !important;
}

.border-top {
    border-top-color: var(--tc-border-color) !important;
}


/* ============================================================================
   LIST GROUPS
   ============================================================================ */

.list-group-item {
    background-color: var(--tc-bg-surface);
    border-color: var(--tc-border-light);
    color: var(--tc-text-primary);
    transition: background-color var(--tc-transition-fast);
}

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

.list-group-item-action:hover,
.list-group-item-action:focus {
    background-color: var(--tc-bg-surface-hover);
    color: var(--tc-text-primary);
}

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


/* ============================================================================
   PAGINATION
   ============================================================================ */

.page-link {
    background-color: var(--tc-bg-surface);
    border-color: var(--tc-border-color);
    color: var(--tc-text-primary);
    transition: all var(--tc-transition-fast);
}

.page-link:hover {
    background-color: var(--tc-bg-surface-hover);
    border-color: var(--tc-border-dark);
    color: var(--tc-primary);
}

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

.page-item.disabled .page-link {
    background-color: var(--tc-bg-muted);
    border-color: var(--tc-border-light);
    color: var(--tc-text-muted);
}


/* ============================================================================
   NAV TABS & PILLS
   ============================================================================ */

.nav-tabs {
    border-bottom-color: var(--tc-border-color);
}

.nav-tabs .nav-link {
    color: var(--tc-text-secondary);
    border-color: transparent;
}

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

.nav-tabs .nav-link.active {
    background-color: var(--tc-bg-surface);
    border-color: var(--tc-border-color) var(--tc-border-color) var(--tc-bg-surface);
    color: var(--tc-text-primary);
}

.nav-pills .nav-link {
    color: var(--tc-text-secondary);
}

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

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


/* ============================================================================
   BREADCRUMBS
   ============================================================================ */

.breadcrumb {
    background-color: transparent;
}

.breadcrumb-item a {
    color: var(--tc-text-link);
}

.breadcrumb-item a:hover {
    color: var(--tc-text-link-hover);
}

.breadcrumb-item.active {
    color: var(--tc-text-muted);
}

.breadcrumb-item + .breadcrumb-item::before {
    color: var(--tc-text-muted);
}


/* ============================================================================
   ACCORDION
   ============================================================================ */

.accordion-item {
    background-color: var(--tc-bg-surface);
    border-color: var(--tc-border-color);
}

.accordion-button {
    background-color: var(--tc-bg-surface);
    color: var(--tc-text-primary);
}

.accordion-button:not(.collapsed) {
    background-color: var(--tc-primary-light);
    color: var(--tc-primary);
}

.accordion-button:focus {
    box-shadow: var(--tc-shadow-focus);
    border-color: var(--tc-primary);
}

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


/* ============================================================================
   PROGRESS BARS
   ============================================================================ */

.progress {
    background-color: var(--tc-bg-muted);
}


/* ============================================================================
   OFFCANVAS
   ============================================================================ */

.offcanvas {
    background-color: var(--tc-bg-surface);
    color: var(--tc-text-primary);
}

.offcanvas-header {
    border-bottom-color: var(--tc-border-light);
}


/* ============================================================================
   TOASTS
   ============================================================================ */

.toast {
    background-color: var(--tc-bg-surface);
    border-color: var(--tc-border-color);
}

.toast-header {
    background-color: var(--tc-bg-muted);
    border-bottom-color: var(--tc-border-light);
    color: var(--tc-text-primary);
}

.toast-body {
    color: var(--tc-text-primary);
}


/* ============================================================================
   THEME TRANSITION ANIMATION
   ============================================================================ */

/* Enable smooth transitions when theme changes */
html.theme-transitions,
html.theme-transitions *,
html.theme-transitions *::before,
html.theme-transitions *::after {
    transition: 
        background-color 0.3s ease,
        border-color 0.3s ease,
        color 0.3s ease,
        box-shadow 0.3s ease,
        fill 0.3s ease,
        stroke 0.3s ease !important;
}


/* ============================================================================
   NOTIFICATION DROPDOWN
   ============================================================================ */

.notification-dropdown-menu {
    max-height: 400px;
    overflow-y: auto;
}

.notification-badge {
    font-size: 0.6rem;
}


/* ============================================================================
   PRINT STYLES
   ============================================================================ */

@media print {
    /* Always use light theme for printing */
    html {
        --tc-bg-body: #ffffff !important;
        --tc-bg-surface: #ffffff !important;
        --tc-text-primary: #000000 !important;
        --tc-text-secondary: #333333 !important;
    }
}


/* ============================================================================
   END OF BASE STYLES
   ============================================================================ */