/* =============================================
   Fantasy Keiba - Custom Design System
   Japanese Horse Racing Inspired Theme
   ============================================= */

/* CSS Variables - Design Tokens */
:root {
    /* Primary Colors - Racing Inspired */
    --color-turf-deep: #0a4f3e;
    --color-turf-vibrant: #1a7a5f;
    --color-turf-light: #2d9d78;
    
    --color-silk-crimson: #c41e3a;
    --color-silk-gold: #d4af37;
    --color-silk-gold-light: #f4e4a6;
    --color-silk-gold-dark: #aa8c2c;
    
    --color-midnight-navy: #0f1c2e;
    --color-midnight-light: #1a2a42;
    --color-navy-steel: #2c3e50;
    
    /* Accent Colors */
    --color-win-gold: #ffd700;
    --color-win-bronze: #cd7f32;
    --color-place-silver: #c0c0c0;
    --color-race-red: #e63946;
    --color-race-blue: #457b9d;
    
    /* Neutral Colors */
    --color-white: #ffffff;
    --color-off-white: #f8f9fa;
    --color-light-gray: #e9ecef;
    --color-medium-gray: #adb5bd;
    --color-dark-gray: #495057;
    --color-text: #212529;
    --color-text-muted: #6c757d;
    
    /* Background & Surfaces */
    --bg-primary: #f5f7f6;
    --bg-surface: #ffffff;
    --bg-surface-alt: #fafbfc;
    --bg-gradient-start: #0a4f3e;
    --bg-gradient-end: #1a7a5f;
    
    /* Typography */
    --font-display: 'Noto Serif JP', 'Georgia', serif;
    --font-body: 'Noto Sans JP', 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', monospace;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 50%;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.25);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 400ms ease;
}

/* Reset & Base Styles */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--bg-primary);
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(26, 122, 95, 0.03) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(212, 175, 55, 0.03) 0%, transparent 20%);
    min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-midnight-navy);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-md);
}

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

a:hover {
    color: var(--color-turf-deep);
}

/* =============================================
   Navigation
   ============================================= */
.navbar {
    background: linear-gradient(135deg, var(--color-midnight-navy) 0%, var(--color-midnight-light) 100%) !important;
    box-shadow: var(--shadow-md);
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 3px solid var(--color-silk-gold);
}

.navbar-brand {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-silk-gold) !important;
    letter-spacing: 0.5px;
}

.navbar-brand:hover {
    color: var(--color-win-gold) !important;
    transform: translateY(-2px);
    transition: all var(--transition-fast);
}

.nav-link {
    color: rgba(255, 255, 255, 0.85) !important;
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md) !important;
    position: relative;
    transition: color var(--transition-fast);
}

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

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

.nav-link:hover,
.nav-link.active {
    color: var(--color-silk-gold) !important;
}

.navbar-toggler {
    border: none;
    padding: var(--spacing-sm);
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.5);
}

/* =============================================
   Cards & Containers
   ============================================= */
.card {
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    background: var(--bg-surface);
    transition: all var(--transition-normal);
    overflow: hidden;
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.card-header {
    background: linear-gradient(135deg, var(--color-turf-deep) 0%, var(--color-turf-vibrant) 100%);
    color: var(--color-white);
    font-family: var(--font-display);
    font-weight: 600;
    padding: var(--spacing-lg);
    border-bottom: none;
}

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

/* Jumbotron / Hero Section */
.jumbotron {
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    color: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    position: relative;
    overflow: hidden;
}

.jumbotron::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        repeating-linear-gradient(
            45deg,
            rgba(255, 255, 255, 0.02),
            rgba(255, 255, 255, 0.02) 1px,
            transparent 1px,
            transparent 20px
        );
    pointer-events: none;
}

.jumbotron .btn {
    position: relative;
    z-index: 1;
}

/* =============================================
   Buttons
   ============================================= */
.btn {
    font-weight: 600;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    border: none;
    transition: all var(--transition-fast);
    text-transform: none;
    letter-spacing: 0.3px;
}

.btn:focus {
    box-shadow: 0 0 0 3px rgba(26, 122, 95, 0.3);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-turf-vibrant) 0%, var(--color-turf-deep) 100%);
    border: 2px solid var(--color-turf-deep);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-turf-deep) 0%, var(--color-turf-vibrant) 100%);
}

.btn-success {
    background: linear-gradient(135deg, #2d7a4e 0%, #1e5c3a 100%);
    border: 2px solid #1e5c3a;
}

.btn-success:hover {
    background: linear-gradient(135deg, #1e5c3a 0%, #2d7a4e 100%);
}

.btn-warning {
    background: linear-gradient(135deg, var(--color-silk-gold) 0%, var(--color-silk-gold-dark) 100%);
    color: var(--color-midnight-navy) !important;
    border: 2px solid var(--color-silk-gold-dark);
}

.btn-warning:hover {
    background: linear-gradient(135deg, var(--color-silk-gold-dark) 0%, var(--color-silk-gold) 100%);
}

.btn-info {
    background: linear-gradient(135deg, var(--color-race-blue) 0%, #2a5a7a 100%);
    border: 2px solid #2a5a7a;
}

.btn-info:hover {
    background: linear-gradient(135deg, #2a5a7a 0%, var(--color-race-blue) 100%);
}

.btn-outline-light {
    border: 2px solid rgba(255, 255, 255, 0.8);
}

.btn-outline-light:hover {
    background: var(--color-white);
    color: var(--color-turf-deep) !important;
    border-color: var(--color-white);
}

/* =============================================
   Tables
   ============================================= */
.table {
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.table thead {
    background: linear-gradient(135deg, var(--color-midnight-navy) 0%, var(--color-navy-steel) 100%);
    color: var(--color-white);
}

.table thead th {
    font-family: var(--font-display);
    font-weight: 600;
    padding: var(--spacing-lg);
    border: none;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

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

.table tbody tr:hover {
    background-color: rgba(26, 122, 95, 0.08);
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(26, 122, 95, 0.03);
}

.table-striped tbody tr:nth-of-type(even) {
    background-color: rgba(0, 0, 0, 0.02);
}

.table td {
    padding: var(--spacing-lg);
    vertical-align: middle;
    border-bottom: 1px solid var(--color-light-gray);
}

/* =============================================
   Badges
   ============================================= */
.badge {
    font-weight: 600;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    letter-spacing: 0.3px;
}

.badge.bg-success {
    background: linear-gradient(135deg, #2d7a4e 0%, #1e5c3a 100%) !important;
}

.badge.bg-info {
    background: linear-gradient(135deg, var(--color-race-blue) 0%, #2a5a7a 100%) !important;
}

.badge.bg-warning {
    background: linear-gradient(135deg, var(--color-silk-gold) 0%, var(--color-silk-gold-dark) 100%) !important;
    color: var(--color-midnight-navy) !important;
}

.badge.bg-danger {
    background: linear-gradient(135deg, var(--color-race-red) 0%, #a83232 100%) !important;
}

.badge.bg-secondary {
    background: linear-gradient(135deg, #6c757d 0%, #545b62 100%) !important;
}

/* Grade-specific badges */
.badge.bg-danger {
    background: linear-gradient(135deg, #ffd700 0%, #ff8c00 100%) !important;
    color: var(--color-midnight-navy) !important;
    font-weight: 700;
    border: 2px solid #ffd700;
}

.badge.bg-warning.text-dark {
    background: linear-gradient(135deg, var(--color-place-silver) 0%, #a0a0a0 100%) !important;
    color: var(--color-midnight-navy) !important;
    font-weight: 700;
    border: 2px solid var(--color-place-silver);
}

.badge.bg-info {
    background: linear-gradient(135deg, var(--color-win-bronze) 0%, #b8860b 100%) !important;
    font-weight: 700;
    border: 2px solid var(--color-win-bronze);
}

/* =============================================
   Alerts
   ============================================= */
.alert {
    border: none;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg) var(--spacing-xl);
    box-shadow: var(--shadow-sm);
}

.alert-dismissible .btn-close {
    padding: var(--spacing-lg);
    background: transparent url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23000'%3e%3cpath d='M.293.293a1 1 0 011.414 0L8 6.586 14.293.293a1 1 0 111.414 1.414L9.414 8l6.293 6.293a1 1 0 01-1.414 1.414L8 9.414l-6.293 6.293a1 1 0 01-1.414-1.414L6.586 8 .293 1.707a1 1 0 010-1.414z'/%3e%3c/svg%3e") center/1em auto no-repeat;
    opacity: 0.7;
}

.alert-dismissible .btn-close:hover {
    opacity: 1;
}

/* =============================================
   Form Elements
   ============================================= */
.form-control,
.form-select {
    border: 2px solid var(--color-light-gray);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    transition: all var(--transition-fast);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--color-turf-vibrant);
    box-shadow: 0 0 0 3px rgba(26, 122, 95, 0.15);
}

.input-group-text {
    background: var(--bg-surface-alt);
    border: 2px solid var(--color-light-gray);
    border-right: none;
    border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.input-group .form-control {
    border-left: none;
}

.input-group .form-control:focus + .input-group-text,
.input-group .form-control:focus ~ .input-group-text {
    border-color: var(--color-turf-vibrant);
}

/* =============================================
   Pagination
   ============================================= */
.pagination .page-link {
    color: var(--color-turf-vibrant);
    border: 2px solid var(--color-light-gray);
    border-radius: var(--radius-md);
    margin: 0 var(--spacing-xs);
    font-weight: 600;
    transition: all var(--transition-fast);
}

.pagination .page-item.active .page-link {
    background: linear-gradient(135deg, var(--color-turf-vibrant) 0%, var(--color-turf-deep) 100%);
    border-color: var(--color-turf-deep);
}

.pagination .page-link:hover {
    background-color: rgba(26, 122, 95, 0.1);
    border-color: var(--color-turf-vibrant);
    transform: translateY(-2px);
}

/* =============================================
   Animations
   ============================================= */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Animation classes */
.animate-fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

.animate-fade-in {
    animation: fadeIn 0.5s ease forwards;
}

.animate-slide-in-right {
    animation: slideInRight 0.5s ease forwards;
}

.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }

/* =============================================
   Utilities
   ============================================= */
.text-primary-custom {
    color: var(--color-turf-vibrant) !important;
}

.text-gradient {
    background: linear-gradient(135deg, var(--color-turf-vibrant) 0%, var(--color-turf-deep) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-money {
    color: var(--color-turf-vibrant);
    font-weight: 700;
    font-family: var(--font-mono);
}

.shadow-hover {
    transition: box-shadow var(--transition-normal);
}

.shadow-hover:hover {
    box-shadow: var(--shadow-lg);
}

/* =============================================
   Leaderboard & Rankings
   ============================================= */
.rank-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: 1rem;
}

.rank-1 {
    background: linear-gradient(135deg, var(--color-silk-gold) 0%, var(--color-silk-gold-dark) 100%);
    color: var(--color-midnight-navy) !important;
    box-shadow: 0 4px 12px rgba(212, 175, 55, 0.4);
    animation: pulse 2s infinite;
}

.rank-2 {
    background: linear-gradient(135deg, var(--color-place-silver) 0%, #a0a0a0 100%);
    color: var(--color-midnight-navy) !important;
}

.rank-3 {
    background: linear-gradient(135deg, var(--color-win-bronze) 0%, #b8860b 100%);
    color: var(--color-white) !important;
}

/* =============================================
   Team & Horse Cards
   ============================================= */
.team-card,
.horse-card {
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    overflow: hidden;
}

.team-card:hover,
.horse-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

/* =============================================
   Responsive Adjustments
   ============================================= */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    
    .jumbotron {
        padding: var(--spacing-lg);
    }
    
    .card-body {
        padding: var(--spacing-lg);
    }
    
    .table {
        font-size: 0.9rem;
    }
    
    .table td,
    .table th {
        padding: var(--spacing-md);
    }
}

/* =============================================
   Print Styles
   ============================================= */
@media print {
    .navbar,
    .pagination,
    .btn {
        display: none !important;
    }
    
    body {
        background: white;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}

/* =============================================
   Custom Scrollbar (Webkit)
   ============================================= */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

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

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

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

/* =============================================
   Selection Color
   ============================================= */
::selection {
    background: rgba(26, 122, 95, 0.3);
    color: var(--color-text);
}

/* =============================================
   Loading State
   ============================================= */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24px;
    height: 24px;
    margin: -12px 0 0 -12px;
    border: 3px solid rgba(26, 122, 95, 0.2);
    border-top-color: var(--color-turf-vibrant);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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