/* 
   Vraivex Audit - Design Ultra-Premium
   Style: Apple / Tesla / Premium Tech
*/

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

:root {
    /* Couleurs Vraivex */
    --vraivex-blue: #1A5DC9;
    --vraivex-blue-dark: #0f4299;
    --vraivex-blue-light: #3d7edb;
    --success: #34A853;
    --warning: #FBBC05;
    --danger: #EA4335;
    --dark: #202124;
    --gray: #5f6368;
    --light-gray: #f1f3f4;
    --white: #ffffff;
    
    /* Espacements Apple-like */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 48px;
    --spacing-xl: 80px;
    --spacing-2xl: 120px;
    
    /* Typographie */
    --font-size-hero: clamp(48px, 6vw, 80px);
    --font-size-h1: clamp(36px, 4vw, 56px);
    --font-size-h2: clamp(28px, 3vw, 42px);
    --font-size-h3: clamp(20px, 2vw, 28px);
    --font-size-body: 17px;
    --font-size-small: 15px;
    
    /* Ombres Apple */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.05), 0 10px 15px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px rgba(0, 0, 0, 0.08), 0 10px 10px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 25px 50px rgba(0, 0, 0, 0.15);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    color: var(--dark);
    background: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

/* ========================================
   NAVIGATION - Ultra-minimaliste
======================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 0.5px solid rgba(0, 0, 0, 0.04);
    z-index: 9999;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.72);
    box-shadow: var(--shadow-sm);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    transition: opacity 0.2s ease;
}

.logo:hover {
    opacity: 0.8;
}

.logo-image {
    height: 45px;
    width: auto;
}

.logo-text {
    font-size: 22px;
    font-weight: 600;
    letter-spacing: -0.5px;
    color: var(--vraivex-blue);
}

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

.nav-links a {
    text-decoration: none;
    color: var(--dark);
    font-size: 15px;
    font-weight: 500;
    letter-spacing: -0.2px;
    transition: color 0.2s ease;
    position: relative;
}

.nav-links a:hover {
    color: var(--vraivex-blue);
}

/* ========================================
   HERO SECTION - Style Tesla
======================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl) 0 var(--spacing-xl);
    background: linear-gradient(180deg, #ffffff 0%, #fafbfc 100%);
    position: relative;
    overflow: hidden;
    margin-top: 80px;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 1000px;
    height: 1000px;
    background: radial-gradient(circle, rgba(26, 93, 201, 0.03) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    text-align: center;
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: var(--font-size-hero);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -3px;
    color: var(--dark);
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.8s ease-out;
}

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

.hero-subtitle {
    font-size: 24px;
    font-weight: 400;
    line-height: 1.5;
    color: var(--gray);
    max-width: 750px;
    margin: 0 auto var(--spacing-lg);
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.btn-hero-primary {
    background: var(--vraivex-blue);
    color: white;
    padding: 16px 48px;
    border-radius: 980px;
    text-decoration: none;
    font-weight: 500;
    font-size: 17px;
    letter-spacing: -0.2px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(26, 93, 201, 0.25);
}

.btn-hero-primary:hover {
    background: var(--vraivex-blue-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(26, 93, 201, 0.35);
}

.btn-hero-secondary {
    background: transparent;
    color: var(--vraivex-blue);
    padding: 16px 48px;
    border-radius: 980px;
    text-decoration: none;
    font-weight: 500;
    font-size: 17px;
    letter-spacing: -0.2px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1.5px solid rgba(26, 93, 201, 0.2);
}

.btn-hero-secondary:hover {
    background: rgba(26, 93, 201, 0.05);
    border-color: var(--vraivex-blue);
}

/* Stats Hero */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-lg);
    max-width: 900px;
    margin: 0 auto;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.stat-item {
    text-align: center;
    padding: var(--spacing-md);
}

.stat-number {
    font-size: 56px;
    font-weight: 700;
    color: var(--vraivex-blue);
    letter-spacing: -2px;
    margin-bottom: var(--spacing-xs);
    line-height: 1;
}

.stat-label {
    font-size: 15px;
    color: var(--gray);
    font-weight: 500;
    letter-spacing: -0.2px;
}

/* ========================================
   SECTIONS
======================================== */

section {
    padding: var(--spacing-2xl) 0;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
}

.section-title {
    font-size: var(--font-size-h1);
    font-weight: 700;
    letter-spacing: -2px;
    color: var(--dark);
    margin-bottom: var(--spacing-sm);
    line-height: 1.1;
}

.section-subtitle {
    font-size: 21px;
    color: var(--gray);
    font-weight: 400;
    line-height: 1.5;
}

/* ========================================
   FEATURES - Cards flottantes
======================================== */

.features {
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.feature-card {
    background: var(--white);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 24px;
    padding: var(--spacing-lg);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(26, 93, 201, 0.1);
}

.feature-icon {
    font-size: 56px;
    margin-bottom: var(--spacing-md);
    display: block;
}

.feature-card h3 {
    font-size: 24px;
    font-weight: 600;
    letter-spacing: -0.5px;
    color: var(--dark);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.feature-card p {
    color: var(--gray);
    font-size: var(--font-size-small);
    line-height: 1.6;
}

/* Badge NOUVEAU */
.highlight-new {
    background: linear-gradient(135deg, #f0f9ff 0%, #ffffff 100%);
    border-color: rgba(26, 93, 201, 0.2);
}

.badge-new {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: linear-gradient(135deg, var(--success) 0%, #2d8e3f 100%);
    color: white;
    padding: 6px 14px;
    border-radius: 980px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(52, 168, 83, 0.3);
}

/* ========================================
   CTA SECTION - Full bleed
======================================== */

.cta-section {
    background: linear-gradient(135deg, var(--vraivex-blue) 0%, var(--vraivex-blue-dark) 100%);
    color: white;
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-md);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 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");
    opacity: 0.3;
}

.cta-section h2 {
    font-size: var(--font-size-h1);
    font-weight: 700;
    letter-spacing: -2px;
    margin-bottom: var(--spacing-sm);
    position: relative;
    z-index: 1;
}

.cta-section p {
    font-size: 21px;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
    position: relative;
    z-index: 1;
}

.cta-section .btn-hero-primary {
    background: white;
    color: var(--vraivex-blue);
}

.cta-section .btn-hero-primary:hover {
    background: var(--light-gray);
    transform: translateY(-2px) scale(1.02);
}

/* ========================================
   PRICING - Cards élégantes
======================================== */

.pricing {
    background: var(--light-gray);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    max-width: 1100px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--white);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 28px;
    padding: var(--spacing-lg);
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.pricing-card.featured {
    border: 2px solid var(--vraivex-blue);
    box-shadow: var(--shadow-lg);
    transform: scale(1.05);
}

.pricing-card.featured:hover {
    transform: scale(1.08) translateY(-8px);
}

.popular-badge {
    position: absolute;
    top: -16px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--vraivex-blue) 0%, var(--vraivex-blue-dark) 100%);
    color: white;
    padding: 8px 24px;
    border-radius: 980px;
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(26, 93, 201, 0.4);
}

.plan-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.plan-price {
    margin-bottom: var(--spacing-lg);
}

.plan-price .price {
    font-size: 64px;
    font-weight: 700;
    letter-spacing: -3px;
    color: var(--vraivex-blue);
    line-height: 1;
}

.plan-price .period {
    font-size: 18px;
    color: var(--gray);
    font-weight: 400;
}

.plan-features {
    list-style: none;
    margin-bottom: var(--spacing-lg);
    text-align: left;
}

.plan-features li {
    padding: 14px 0;
    color: var(--dark);
    font-size: 16px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.plan-features li:last-child {
    border-bottom: none;
}

.btn-plan {
    display: inline-block;
    background: var(--vraivex-blue);
    color: white;
    padding: 16px 48px;
    border-radius: 980px;
    text-decoration: none;
    font-weight: 500;
    font-size: 16px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    width: 100%;
    box-shadow: 0 4px 14px rgba(26, 93, 201, 0.25);
}

.btn-plan:hover {
    background: var(--vraivex-blue-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(26, 93, 201, 0.35);
}

/* ========================================
   FOOTER - Minimaliste
======================================== */

.footer {
    background: var(--dark);
    color: rgba(255, 255, 255, 0.8);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-section h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: white;
    letter-spacing: -0.3px;
}

.footer-section a {
    display: block;
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-size: 15px;
    margin-bottom: 12px;
    transition: color 0.2s ease;
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

/* ========================================
   ANIMATIONS
======================================== */

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

/* ========================================
   RESPONSIVE
======================================== */

@media (max-width: 768px) {
    :root {
        --spacing-xl: 60px;
        --spacing-2xl: 80px;
    }
    
    .hero {
        min-height: auto;
        padding: var(--spacing-xl) 0;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .btn-hero-primary,
    .btn-hero-secondary {
        width: 100%;
        padding: 14px 32px;
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-card.featured {
        transform: scale(1);
    }
    
    .nav-links {
        gap: var(--spacing-sm);
    }
    
    .nav-links a {
        font-size: 13px;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
}