/* theme.css - Dual Theme Support for eFootball League 2025 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Orbitron:wght@600;700;800;900&display=swap');

/* ============================================
   DARK THEME (Default)
   ============================================ */
:root,
[data-theme="dark"] {
    /* Primary Colors - Cyan/Teal */
    --primary-50: #ecfeff;
    --primary-100: #cffafe;
    --primary-200: #a5f3fc;
    --primary-300: #67e8f9;
    --primary-400: #22d3ee;
    --primary-500: #06B6D4;
    --primary-600: #0891B2;
    --primary-700: #0e7490;
    --primary-800: #155e75;
    --primary-900: #164e63;

    /* Secondary Colors - Orange */
    --secondary-400: #FB923C;
    --secondary-500: #F97316;
    --secondary-600: #EA580C;

    /* Neutral Colors */
    --neutral-50: #f8fafc;
    --neutral-100: #f1f5f9;
    --neutral-200: #e2e8f0;
    --neutral-300: #cbd5e1;
    --neutral-400: #94a3b8;
    --neutral-500: #64748b;
    --neutral-600: #475569;
    --neutral-700: #334155;
    --neutral-800: #1e293b;
    --neutral-900: #0f172a;

    /* Accent Colors */
    --success: #10B981;
    --success-light: rgba(16, 185, 129, 0.15);
    --warning: #F59E0B;
    --warning-light: rgba(245, 158, 11, 0.15);
    --error: #EF4444;
    --error-light: rgba(239, 68, 68, 0.15);
    --info: #3B82F6;
    --info-light: rgba(59, 130, 246, 0.15);

    /* Background Colors - Dark Theme */
    --body-bg: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
    --bg-primary: #0F172A;
    --bg-secondary: rgba(15, 23, 42, 0.8);
    --bg-tertiary: rgba(30, 41, 59, 0.6);
    --bg-card: rgba(15, 23, 42, 0.6);
    --bg-card-hover: rgba(15, 23, 42, 0.8);


    /* Text Colors */
    --text-primary: #F8FAFC;
    --text-secondary: #CBD5E1;
    --text-muted: #94A3B8;

    /* Border Colors */
    --border-color: rgba(6, 182, 212, 0.2);
    --border-color-light: rgba(6, 182, 212, 0.3);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #06B6D4 0%, #3B82F6 100%);
    --gradient-secondary: linear-gradient(135deg, #F97316 0%, #EF4444 100%);
    --gradient-accent: linear-gradient(135deg, #10B981 0%, #06B6D4 100%);
    --gradient-success: linear-gradient(135deg, #10B981 0%, #059669 100%);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 12px 48px rgba(0, 0, 0, 0.5);
    --glow-primary: 0 0 20px rgba(6, 182, 212, 0.5);
    --glow-secondary: 0 0 20px rgba(249, 115, 22, 0.5);

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 24px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms ease;

    /* Background pattern */
    --bg-pattern-opacity: 1;
}

/* ============================================
   LIGHT THEME
   ============================================ */
[data-theme="light"] {
    /* Adjusted Primary Colors */
    --primary-500: #0891B2;
    --primary-400: #06B6D4;

    /* Background Colors - Light Theme */
    --body-bg: linear-gradient(135deg, #F8FAFC 0%, #E0F2FE 50%, #F0FDFA 100%);
    --bg-primary: #F8FAFC;
    --bg-secondary: rgba(255, 255, 255, 0.9);
    --bg-tertiary: rgba(241, 245, 249, 0.8);
    --bg-card: rgba(255, 255, 255, 0.8);
    --bg-card-hover: rgba(255, 255, 255, 0.95);

    /* Text Colors */
    --text-primary: #1E293B;
    --text-secondary: #475569;
    --text-muted: #64748B;

    /* Border Colors */
    --border-color: rgba(6, 182, 212, 0.15);
    --border-color-light: rgba(6, 182, 212, 0.25);

    /* Adjusted accent colors for light bg */
    --success-light: rgba(16, 185, 129, 0.12);
    --warning-light: rgba(245, 158, 11, 0.12);
    --error-light: rgba(239, 68, 68, 0.12);
    --info-light: rgba(59, 130, 246, 0.12);

    /* Shadows for light theme */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 12px 48px rgba(0, 0, 0, 0.12);

    /* Background pattern */
    --bg-pattern-opacity: 0.5;
}


/* Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--body-bg);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    position: relative;
    transition: background 0.3s ease, color 0.3s ease;
}

/* Animated Background Pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 50%, rgba(6, 182, 212, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(249, 115, 22, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 50% 20%, rgba(16, 185, 129, 0.08) 0%, transparent 50%);
    z-index: -1;
    animation: backgroundShift 20s ease-in-out infinite;
    opacity: var(--bg-pattern-opacity);
    transition: opacity 0.3s ease;
}

@keyframes backgroundShift {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.1); }
}

/* Card Styles */
.card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    overflow: hidden;
    position: relative;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg), var(--glow-primary);
    background: var(--bg-card-hover);
    border-color: var(--border-color-light);
}

.card-header {
    padding: 1.25rem 1.5rem;
    background: var(--gradient-primary);
    border-bottom: none;
    font-weight: 700;
    color: white;
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 0.5px;
}

.card-body {
    padding: 1.5rem;
    color: var(--text-primary);
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-sm);
}

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

.btn-success {
    background: var(--gradient-success);
    color: white;
}

.btn-warning {
    background: var(--gradient-secondary);
    color: white;
}

/* Form Styles */
.form-control {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--bg-tertiary);
    backdrop-filter: blur(10px);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-500);
    background: var(--bg-secondary);
    box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.2), var(--glow-primary);
}

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

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Badge Styles */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.4rem 0.9rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

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

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

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

/* Loading Spinner */
.spinner {
    width: 24px;
    height: 24px;
    border: 2px solid rgba(6, 182, 212, 0.2);
    border-top-color: var(--primary-500);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.3s ease-out;
}

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

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-500);
    border-radius: 4px;
}

/* Link styles */
a {
    color: var(--primary-400);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-300);
}

/* Responsive */
@media (max-width: 480px) {
    .reg-card {
        padding: 1.5rem !important;
        margin: 0.5rem;
        border-radius: var(--radius-lg) !important;
    }
    
    .reg-header h1 {
        font-size: 1.25rem !important;
    }
    
    .step-indicator {
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .step-line {
        display: none;
    }
}