/* ===========================
   MAIN.CSS - Styles globaux "Coup de Génie"
   Design moderne, fun et intelligent
   =========================== */

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

/* ===========================
   RESET & BASE STYLES
   =========================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Couleurs principales - Violet/Bleu */
    --primary-purple: #7c3aed;
    --primary-purple-dark: #6d28d9;
    --primary-purple-light: #8b5cf6;
    --primary-blue: #3b82f6;
    --primary-blue-dark: #2563eb;
    --primary-blue-light: #60a5fa;
    
    /* Couleurs accent - Jaune/Or */
    --accent-gold: #fbbf24;
    --accent-gold-dark: #f59e0b;
    --accent-gold-light: #fcd34d;
    --accent-yellow: #fde047;
    
    /* Fond sombre - Bleu nuit / Gris anthracite */
    --bg-dark: #0f172a;
    --bg-darker: #020617;
    --bg-navy: #1e1b4b;
    --bg-card: rgba(30, 27, 75, 0.6);
    --bg-card-hover: rgba(30, 27, 75, 0.8);
    --bg-glass: rgba(15, 23, 42, 0.7);
    
    /* Bordures et overlays */
    --border-color: rgba(124, 58, 237, 0.3);
    --border-glow: rgba(124, 58, 237, 0.6);
    
    /* Texte */
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    
    /* États */
    --success: #10b981;
    --success-light: #34d399;
    --error: #ef4444;
    --error-light: #f87171;
    --warning: #f59e0b;
    
    /* Ombres et glows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 12px 48px rgba(0, 0, 0, 0.6);
    --glow-purple: 0 0 10px rgba(124, 58, 237, 0.3);
    --glow-gold: 0 0 10px rgba(251, 191, 36, 0.3);
    --glow-blue: 0 0 10px rgba(59, 130, 246, 0.3);
    
    /* Transitions */
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, var(--bg-darker) 0%, var(--bg-dark) 50%, var(--bg-navy) 100%);
    background-attachment: fixed;
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Effet de grille en arrière-plan */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(124, 58, 237, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(124, 58, 237, 0.05) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
}

/* ===========================
   CONTAINER & LAYOUT
   =========================== */
.container {
    width: 100%;
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ===========================
   LOGO (Partagé entre toutes les pages)
   =========================== */
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 2rem;
    font-weight: 900;
    color: var(--primary-purple);
    letter-spacing: -1px;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.logo:hover {
    transform: scale(1.05);
    color: var(--primary-blue);
}

.logo i {
    color: var(--accent-gold);
}

.logo-link {
    text-decoration: none;
}

/* ===========================
   BUTTONS (Partagés) - Grands et ronds
   =========================== */
.btn {
    position: relative;
    padding: 20px 48px;
    font-size: 1.3rem;
    font-weight: 700;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    overflow: hidden;
    font-family: 'Poppins', sans-serif;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-icon {
    font-size: 1.4rem;
    transition: transform var(--transition-bounce);
}

.btn:hover .btn-icon {
    transform: scale(1.3) rotate(10deg);
}

.btn:active {
    transform: scale(0.95);
}

/* Bouton Principal - Violet/Bleu */
.btn-primary {
    background: var(--primary-purple);
    color: white;
    box-shadow: var(--shadow-md);
    border: 3px solid transparent;
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.03);
    background: var(--primary-blue);
    box-shadow: var(--shadow-lg);
}

/* Bouton Secondaire - Transparent avec bordure */
.btn-secondary {
    background: var(--bg-glass);
    border: 3px solid var(--border-color);
    color: var(--text-primary);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--primary-purple);
    transform: translateY(-3px) scale(1.03);
    box-shadow: var(--shadow-md);
}

/* Bouton Gold - Pour les succès */
.btn-gold {
    background: var(--accent-gold);
    color: var(--bg-darker);
    box-shadow: var(--shadow-md);
    border: 3px solid transparent;
    font-weight: 800;
}

.btn-gold:hover {
    transform: translateY(-3px) scale(1.03);
    background: var(--accent-gold-light);
    box-shadow: var(--shadow-lg);
}

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

/* Button disabled state */
.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    pointer-events: none;
}

/* Spinner animation for loading buttons */
.fa-spin {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* ===========================
   CARDS - Design propre et aéré
   =========================== */
.card {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 24px;
    padding: 32px;
    backdrop-filter: blur(20px);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.1), rgba(59, 130, 246, 0.1));
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-purple);
    box-shadow: var(--shadow-lg);
}

.card:hover::before {
    opacity: 1;
}

/* ===========================
   PARTICLES BACKGROUND
   =========================== */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.particle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.3;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.6) 0%, transparent 70%);
    animation: float linear infinite;
    filter: blur(2px);
}

/* Variantes de particules */
.particle:nth-child(3n) {
    background: radial-gradient(circle, rgba(59, 130, 246, 0.6) 0%, transparent 70%);
}

.particle:nth-child(3n+1) {
    background: radial-gradient(circle, rgba(251, 191, 36, 0.6) 0%, transparent 70%);
}

/* ===========================
   ANIMATIONS GLOBALES
   =========================== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes float {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.6;
    }
    90% {
        opacity: 0.6;
    }
    100% {
        transform: translateY(-100px) rotate(360deg);
        opacity: 0;
    }
}

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

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    25% {
        transform: translateX(-10px);
    }
    75% {
        transform: translateX(10px);
    }
}

@keyframes heartbeat {
    0%, 100% {
        transform: scale(1);
    }
    25% {
        transform: scale(1.2);
    }
    50% {
        transform: scale(1);
    }
}

@keyframes bounceIn {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    50% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes scaleIn {
    0% {
        transform: scale(0.8);
        opacity: 0;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes rotateIn {
    0% {
        transform: rotate(-180deg) scale(0);
        opacity: 0;
    }
    100% {
        transform: rotate(0) scale(1);
        opacity: 1;
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(124, 58, 237, 0.5);
    }
    50% {
        box-shadow: 0 0 40px rgba(124, 58, 237, 0.8);
    }
}

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

/* Animation de confettis */
@keyframes confetti-fall {
    0% {
        transform: translateY(-100vh) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(100vh) rotate(720deg);
        opacity: 0;
    }
}

/* ===========================
   RESPONSIVE GLOBAL
   =========================== */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .logo {
        font-size: 1.6rem;
    }
    
    .btn {
        padding: 16px 36px;
        font-size: 1.1rem;
    }
    
    .card {
        padding: 24px;
        border-radius: 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 12px;
    }
    
    .logo {
        font-size: 1.4rem;
        gap: 8px;
    }
    
    .btn {
        padding: 14px 32px;
        font-size: 1rem;
    }
    
    .card {
        padding: 20px;
        border-radius: 16px;
    }
}

/* ===========================
   ACCESSIBILITY
   =========================== */
.btn:focus-visible,
.card:focus-visible {
    outline: 3px solid var(--accent-gold);
    outline-offset: 4px;
}

/* Réduction des animations pour les utilisateurs qui préfèrent */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===========================
   UTILITY CLASSES
   =========================== */
.text-gradient {
    background: linear-gradient(135deg, var(--primary-purple), var(--primary-blue), var(--accent-gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gold {
    color: var(--accent-gold);
}

.glow-purple {
    box-shadow: var(--glow-purple);
}

.glow-gold {
    box-shadow: var(--glow-gold);
}

.glow-blue {
    box-shadow: var(--glow-blue);
}