/* =============================================
   MAIN STYLES - Tunisian Football Federation
   Feuille de Match Generator
   ============================================= */

/* CSS Custom Properties */
:root {
    /* Brand Colors */
    --red-primary: #C8102E;
    --red-dark: #9B0D24;
    --red-light: #E8354F;
    --gold-primary: #D4AF37;
    --gold-light: #E8C961;
    --gold-dark: #B8960B;

    /* Neutrals */
    --white: #FFFFFF;
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-500: #64748B;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --gray-900: #0F172A;

    /* Semantic Colors */
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    --info: #3B82F6;

    /* Team Colors */
    --home-primary: #10B981;
    --home-secondary: #059669;
    --away-primary: #3B82F6;
    --away-secondary: #2563EB;

    /* Gradients */
    --gradient-red: linear-gradient(135deg, #C8102E 0%, #9B0D24 100%);
    --gradient-gold: linear-gradient(135deg, #D4AF37 0%, #B8960B 100%);
    --gradient-dark: linear-gradient(135deg, #1E293B 0%, #0F172A 100%);
    --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);

    /* 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);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    --shadow-glow-red: 0 0 40px rgba(200, 16, 46, 0.4);
    --shadow-glow-gold: 0 0 40px rgba(212, 175, 55, 0.4);

    /* Typography */
    --font-arabic: 'Cairo', 'Segoe UI', sans-serif;
    --font-latin: 'Montserrat', 'Segoe UI', sans-serif;

    /* Spacing */
    --container-max: 1400px;
    --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: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-arabic);
    background: var(--gradient-dark);
    color: var(--gray-100);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Animated Background */
.animated-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
}

.gradient-sphere {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: floatSphere 20s ease-in-out infinite;
}

.sphere-1 {
    width: 600px;
    height: 600px;
    background: var(--red-primary);
    top: -200px;
    right: -200px;
    animation-delay: 0s;
}

.sphere-2 {
    width: 400px;
    height: 400px;
    background: var(--gold-primary);
    bottom: -100px;
    left: -100px;
    animation-delay: -7s;
}

.sphere-3 {
    width: 300px;
    height: 300px;
    background: var(--red-light);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -14s;
}

.grid-pattern {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

@keyframes floatSphere {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(50px, -50px) scale(1.1); }
    50% { transform: translate(-30px, 30px) scale(0.95); }
    75% { transform: translate(-50px, -30px) scale(1.05); }
}

/* Preloader */
.preloader {
    position: fixed;
    inset: 0;
    background: var(--gray-900);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s, visibility 0.5s;
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

.preloader-content {
    text-align: center;
}

.football-loader {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    position: relative;
}

.ball-bounce {
    width: 50px;
    height: 50px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 512 512'%3E%3Ccircle cx='256' cy='256' r='240' fill='%23fff'/%3E%3Cpath d='M256 16C123.5 16 16 123.5 16 256s107.5 240 240 240 240-107.5 240-240S388.5 16 256 16zm0 448c-114.7 0-208-93.3-208-208S141.3 48 256 48s208 93.3 208 208-93.3 208-208 208z' fill='%23333'/%3E%3Cpath d='M256 112l-55 40 21 65-55-40-55 40 21-65-55-40h68l21-65 21 65h68z' fill='%23333'/%3E%3C/svg%3E") center/contain no-repeat;
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 0.6s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { bottom: 0; }
    50% { bottom: 30px; }
}

.preloader p {
    color: var(--gold-primary);
    font-size: 1.1rem;
    font-weight: 600;
}

/* Header */
.header {
    background: var(--gradient-red);
    position: relative;
    z-index: 100;
    overflow: hidden;
}

.header-glow {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 400px;
    background: radial-gradient(ellipse, rgba(212, 175, 55, 0.3) 0%, transparent 70%);
    pointer-events: none;
}

.header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg) 0;
    position: relative;
    z-index: 1;
}

.brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.logo {
    width: 80px;
    height: 80px;
    object-fit: contain;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.3));
    transition: transform var(--transition-base);
}

.logo:hover {
    transform: scale(1.1) rotate(5deg);
}

.brand-text h1 {
    font-family: var(--font-latin);
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: 1px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.brand-text p {
    font-family: var(--font-latin);
    font-size: 0.85rem;
    color: rgba(255,255,255,0.9);
    letter-spacing: 0.5px;
}

.season-display {
    perspective: 1000px;
}

.season-badge {
    background: var(--gradient-gold);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-glow-gold);
    transform: rotateY(-5deg);
    transition: transform var(--transition-base);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.season-badge:hover {
    transform: rotateY(0deg) scale(1.05);
}

.season-label {
    font-family: var(--font-latin);
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--gray-800);
    letter-spacing: 2px;
}

.season-year {
    font-family: var(--font-latin);
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--gray-900);
    line-height: 1;
}

/* Editable Season Input */
.season-badge.editable {
    padding: var(--spacing-sm) var(--spacing-lg);
}

.season-input {
    font-family: var(--font-latin);
    font-size: 1.6rem;
    font-weight: 900;
    color: var(--gray-900);
    background: transparent;
    border: none;
    border-bottom: 2px dashed rgba(0,0,0,0.3);
    text-align: center;
    width: 120px;
    padding: 2px 0;
    outline: none;
    transition: all var(--transition-base);
}

.season-input:focus {
    border-bottom-color: var(--red-primary);
    border-bottom-style: solid;
}

.season-input::placeholder {
    color: rgba(0,0,0,0.3);
}

.header-title {
    background: rgba(0,0,0,0.2);
    padding: var(--spacing-lg) 0;
    text-align: center;
    position: relative;
    z-index: 1;
}

.arabic-championship {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.arabic-championship h2 {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--gold-primary);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.trophy-icon {
    color: var(--gold-primary);
    font-size: 1.5rem;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.document-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--white);
    color: var(--red-primary);
    padding: var(--spacing-sm) var(--spacing-xl);
    border-radius: var(--radius-full);
    font-family: var(--font-latin);
    font-weight: 700;
    font-size: 1rem;
    box-shadow: var(--shadow-lg);
}

.document-badge i {
    font-size: 1.2rem;
}

/* Main App */
.main-app {
    position: relative;
    z-index: 10;
    padding: var(--spacing-2xl) 0;
}

/* Step Navigator */
.step-navigator {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0;
    margin-bottom: var(--spacing-2xl);
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(10px);
    padding: var(--spacing-lg) var(--spacing-xl);
    border-radius: var(--radius-2xl);
    border: 1px solid rgba(255,255,255,0.1);
}

.step-tab {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: transparent;
    border: none;
    cursor: pointer;
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
    position: relative;
}

.step-tab:hover {
    background: rgba(255,255,255,0.1);
}

.step-tab.active {
    background: var(--gradient-red);
    box-shadow: var(--shadow-glow-red);
}

.step-tab.completed {
    background: rgba(16, 185, 129, 0.2);
}

.step-number {
    width: 36px;
    height: 36px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-latin);
    font-weight: 700;
    font-size: 1rem;
    color: var(--white);
}

.step-tab.active .step-number {
    background: var(--white);
    color: var(--red-primary);
}

.step-tab.completed .step-number {
    background: var(--success);
    color: var(--white);
}

.step-info {
    text-align: right;
}

.step-title {
    display: block;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--white);
}

.step-desc {
    display: block;
    font-family: var(--font-latin);
    font-size: 0.75rem;
    color: rgba(255,255,255,0.7);
}

.step-check {
    display: none;
    color: var(--success);
    font-size: 1.2rem;
}

.step-tab.completed .step-check {
    display: block;
}

.step-connector {
    width: 60px;
    height: 3px;
    background: rgba(255,255,255,0.2);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.connector-fill {
    width: 0;
    height: 100%;
    background: var(--success);
    transition: width var(--transition-slow);
}

.step-tab.completed + .step-connector .connector-fill {
    width: 100%;
}

/* Form Container */
.form-container {
    background: rgba(255,255,255,0.03);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-2xl);
    border: 1px solid rgba(255,255,255,0.1);
    overflow: hidden;
}

.form-step {
    display: none;
    padding: var(--spacing-2xl);
    animation: fadeSlideIn 0.4s ease;
}

.form-step.active {
    display: block;
}

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

/* Step Header */
.step-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid rgba(200, 16, 46, 0.3);
}

.step-icon-wrapper {
    width: 60px;
    height: 60px;
    background: var(--gradient-red);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--white);
    box-shadow: var(--shadow-glow-red);
}

.step-icon-wrapper.referee-icon {
    background: linear-gradient(135deg, #9B59B6 0%, #8E44AD 100%);
}

.step-icon-wrapper.teams-icon {
    background: linear-gradient(135deg, #3498DB 0%, #2980B9 100%);
}

.step-icon-wrapper.pdf-icon {
    background: linear-gradient(135deg, #27AE60 0%, #219A52 100%);
}

.step-header h3 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: var(--spacing-xs);
}

.step-header p {
    font-size: 0.95rem;
    color: var(--gray-400);
}

/* Step Actions */
.step-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 1px dashed rgba(255,255,255,0.1);
}

/* Footer */
.footer {
    background: rgba(0,0,0,0.3);
    padding: var(--spacing-xl) 0;
    text-align: center;
    position: relative;
    z-index: 10;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.copyright {
    font-family: var(--font-latin);
    font-size: 0.9rem;
    color: var(--gray-400);
}

.arabic-copyright {
    font-size: 0.95rem;
    color: var(--gold-primary);
    font-weight: 600;
}

/* Responsive */
@media (max-width: 1024px) {
    .header-content {
        flex-direction: column;
        gap: var(--spacing-lg);
        text-align: center;
    }

    .brand {
        flex-direction: column;
    }

    .step-navigator {
        flex-wrap: wrap;
        gap: var(--spacing-md);
    }

    .step-connector {
        display: none;
    }
}

@media (max-width: 768px) {
    .step-tab {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .step-info {
        display: none;
    }

    .form-step {
        padding: var(--spacing-lg);
    }
}