/* ========================================
   Variables & Reset
   ======================================== */

:root {
    /* Colors */
    --color-primary: #1e40af;
    --color-primary-dark: #1e3a8a;
    --color-secondary: #059669;
    --color-accent: #f59e0b;
    --color-gold: #fbbf24;
    --color-dark: #1f2937;
    --color-gray: #6b7280;
    --color-light-gray: #f3f4f6;
    --color-white: #ffffff;

    /* Gradients */
    --gradient-hero: linear-gradient(135deg, #1e40af 0%, #7c3aed 50%, #059669 100%);
    --gradient-card: linear-gradient(135deg, rgba(30, 64, 175, 0.05) 0%, rgba(5, 150, 105, 0.05) 100%);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;

    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-base: 16px;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

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

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--color-dark);
    line-height: 1.6;
    background-color: var(--color-white);
    overflow-x: hidden;
}

/* ========================================
   Typography
   ======================================== */

h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }

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

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* ========================================
   Layout Components
   ======================================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ========================================
   Header
   ======================================== */

.header {
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-dark);
}

.logo-icon {
    font-size: 1.75rem;
}

.logo-text {
    background: var(--gradient-hero);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========================================
   Hero Section
   ======================================== */

.hero {
    background: var(--gradient-hero);
    padding: var(--spacing-xl) 0;
    position: relative;
    overflow: hidden;
    min-height: 600px;
    display: flex;
    align-items: center;
}

/* Image de fond des chevaux */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('../images/ChevauxHippodromeAuteuil001.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.45;
    z-index: 0;
}

/* Overlay dégradé pour améliorer la lisibilité */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg,
        rgba(30, 64, 175, 0.88) 0%,
        rgba(124, 58, 237, 0.80) 50%,
        rgba(5, 150, 105, 0.88) 100%
    );
    backdrop-filter: blur(2px);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--color-white);
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    animation: fadeInUp 0.8s ease-out;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.95;
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.hero-badges {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.4s backwards;
}

.badge {
    background-color: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.badge-gold {
    background-color: var(--color-gold);
    color: var(--color-dark);
    border-color: var(--color-accent);
}

/* ========================================
   Sections
   ======================================== */

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    font-size: 2.5rem;
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--gradient-hero);
    border-radius: var(--radius-sm);
}

/* ========================================
   Features Section
   ======================================== */

.features {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.feature-card {
    background: var(--gradient-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(30, 64, 175, 0.1);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    display: inline-block;
    animation: float 3s ease-in-out infinite;
}

.feature-card:nth-child(2) .feature-icon {
    animation-delay: 0.5s;
}

.feature-card:nth-child(3) .feature-icon {
    animation-delay: 1s;
}

.feature-card h3 {
    color: var(--color-dark);
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    color: var(--color-gray);
    margin-bottom: 0;
}

/* ========================================
   Benefits Section
   ======================================== */

.benefits {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-light-gray);
}

.benefits-list {
    max-width: 800px;
    margin: 0 auto;
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.benefit-item:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
    transform: translateX(8px);
}

.benefit-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    min-width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-card);
    border-radius: var(--radius-md);
}

.benefit-content h3 {
    color: var(--color-dark);
    margin-bottom: var(--spacing-xs);
}

.benefit-content p {
    color: var(--color-gray);
    margin-bottom: 0;
}

/* ========================================
   CTA Section
   ======================================== */

.cta {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-white);
}

.cta-box {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
    background: var(--gradient-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    border: 2px solid var(--color-primary);
}

.cta-title {
    color: var(--color-dark);
    margin-bottom: var(--spacing-sm);
}

.cta-subtitle {
    color: var(--color-gray);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

.email-form {
    margin-bottom: var(--spacing-md);
}

.form-group {
    display: flex;
    gap: var(--spacing-sm);
    flex-direction: column;
}

.form-input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid rgba(30, 64, 175, 0.2);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: all 0.3s ease;
    background-color: var(--color-white);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.btn-submit {
    background: var(--gradient-hero);
    color: var(--color-white);
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    transition: all 0.3s ease;
    font-family: var(--font-primary);
}

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

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

.btn-icon {
    font-size: 1.5rem;
    transition: transform 0.3s ease;
}

.btn-submit:hover .btn-icon {
    transform: translateX(4px);
}

.form-message {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    font-weight: 600;
    display: none;
}

.form-message.success {
    display: block;
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #059669;
}

.form-message.error {
    display: block;
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #dc2626;
}

.cta-note {
    color: var(--color-gray);
    font-size: 0.875rem;
    margin-bottom: 0;
}

/* ========================================
   Timeline Section
   ======================================== */

.timeline {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-light-gray);
}

.timeline-items {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.timeline-items::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gradient-hero);
}

.timeline-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.timeline-dot {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: var(--color-white);
    border: 4px solid var(--color-primary);
    position: relative;
    z-index: 1;
    flex-shrink: 0;
    margin-left: 20px;
}

.timeline-item.active .timeline-dot {
    background: var(--gradient-hero);
    border-color: var(--color-gold);
    box-shadow: 0 0 0 4px rgba(251, 191, 36, 0.2);
    animation: pulse 2s ease-in-out infinite;
}

.timeline-content {
    background-color: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    flex: 1;
    box-shadow: var(--shadow-md);
}

.timeline-content h3 {
    color: var(--color-dark);
    margin-bottom: var(--spacing-xs);
}

.timeline-content p {
    color: var(--color-gray);
    margin-bottom: 0;
}

/* ========================================
   Footer
   ======================================== */

.footer {
    background-color: var(--color-dark);
    color: var(--color-white);
    padding: var(--spacing-lg) 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.footer-info p {
    margin-bottom: var(--spacing-xs);
    font-size: 0.875rem;
}

.footer-disclaimer {
    color: var(--color-gray);
    font-size: 0.75rem;
}

.footer-links {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--color-white);
    font-size: 0.875rem;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--color-gold);
}

/* ========================================
   Animations
   ======================================== */

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

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

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

/* ========================================
   Responsive Design
   ======================================== */

@media (min-width: 768px) {
    .form-group {
        flex-direction: row;
    }

    .form-input {
        flex: 1;
    }

    .btn-submit {
        flex: 0 0 auto;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }

    .hero {
        padding: var(--spacing-lg) 0;
        min-height: 500px;
    }

    .hero::before {
        background-position: 65% center;
    }

    .features,
    .benefits,
    .cta,
    .timeline {
        padding: var(--spacing-lg) 0;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .benefit-item {
        flex-direction: column;
        text-align: center;
    }

    .benefit-number {
        margin: 0 auto;
    }

    .timeline-items::before {
        left: 10px;
    }

    .timeline-dot {
        margin-left: 0;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .hero {
        min-height: 450px;
    }

    .hero::before {
        background-position: 70% center;
        opacity: 0.2;
    }

    .hero-badges {
        flex-direction: column;
        align-items: center;
    }

    .badge {
        width: 100%;
        text-align: center;
    }
}