/* Reset et base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
    overflow-x: hidden;
}

/* Variables CSS */
:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #8b5cf6;
    --accent-color: #06b6d4;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --background-light: #f8fafc;
    --background-dark: #0f172a;
    --border-color: #e5e7eb;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    --gradient-accent: linear-gradient(135deg, var(--accent-color), var(--primary-color));
    
    /* Largeurs définies */
    --max-content-width: 1400px;  /* Format 16:9 adapté */
    --min-content-width: 320px;   /* Largeur minimum smartphone */
    --standard-content-width: 1200px; /* Largeur standard */
}

/* Container avec largeurs définies */
.container {
    max-width: var(--standard-content-width);
    min-width: var(--min-content-width);
    margin: 0 auto;
    padding: 0 clamp(15px, 4vw, 40px);
    width: 100%;
}

/* Container large pour certaines sections */
.container-large {
    max-width: var(--max-content-width);
    min-width: var(--min-content-width);
    margin: 0 auto;
    padding: 0 clamp(15px, 4vw, 40px);
    width: 100%;
}

/* Container étroit pour le texte */
.container-narrow {
    max-width: 800px;
    min-width: var(--min-content-width);
    margin: 0 auto;
    padding: 0 clamp(15px, 4vw, 40px);
    width: 100%;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-primary);
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.5rem, 3.5vw, 2rem);
}

h4 {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
}

p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: clamp(0.9rem, 2.5vw, 1.1rem);
    line-height: 1.7;
}

.lead {
    font-size: clamp(1rem, 3vw, 1.3rem);
    font-weight: 400;
    color: var(--text-secondary);
    line-height: 1.6;
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: clamp(12px, 2.5vw, 16px) clamp(24px, 4vw, 32px);
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    font-size: clamp(14px, 2.5vw, 16px);
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    text-align: center;
    white-space: nowrap;
    min-width: 120px;
}

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

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

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

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

.btn-outline {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    background: transparent;
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

.btn-download {
    background: var(--gradient-primary);
    color: white;
    padding: clamp(15px, 3vw, 20px) clamp(30px, 5vw, 40px);
    font-size: clamp(16px, 3vw, 18px);
    border-radius: 12px;
    box-shadow: var(--shadow);
    font-weight: 700;
}

/* Header avec largeur définie */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    max-width: var(--max-content-width);
    margin: 0 auto;
    padding-left: clamp(15px, 4vw, 40px);
    padding-right: clamp(15px, 4vw, 40px);
}

.nav-logo h2 {
    color: var(--primary-color);
    font-weight: 700;
    font-size: clamp(1.2rem, 3vw, 1.5rem);
    margin: 0;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: clamp(1rem, 3vw, 2rem);
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
    font-size: clamp(14px, 2.5vw, 16px);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 1px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: 0.3s;
}

/* Sections avec arrière-plans full-width mais contenu limité */
section {
    padding: clamp(4rem, 8vw, 6rem) 0;
    width: 100%;
}

.section-header {
    text-align: center;
    margin-bottom: clamp(3rem, 6vw, 5rem);
}

.section-header h2 {
    margin-bottom: 1.5rem;
}

/* Hero Section avec arrière-plan full-width */
.hero {
    padding: clamp(8rem, 12vw, 10rem) 0 clamp(5rem, 8vw, 7rem) 0;
    background: var(--background-light);
    min-height: 100vh;
    display: flex;
    align-items: center;
    width: 100%;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(3rem, 6vw, 5rem);
    align-items: center;
    width: 100%;
    max-width: var(--max-content-width);
    margin: 0 auto;
    padding: 0 clamp(15px, 4vw, 40px);
}

.hero-title {
    margin-bottom: 2rem;
    line-height: 1.1;
}

.hero-description {
    margin-bottom: 2.5rem;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

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

.image-placeholder {
    width: 100%;
    max-width: 450px;
    height: clamp(280px, 40vw, 350px);
    background: var(--gradient-primary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    color: white;
    font-size: clamp(1.2rem, 3vw, 1.5rem);
    margin: 0 auto;
    box-shadow: var(--shadow-lg);
}

.image-placeholder p {
    color: white;
    margin: 0;
    text-align: center;
}

.image-placeholder span {
    font-size: clamp(3rem, 8vw, 4rem);
    margin-bottom: 1rem;
    display: block;
}

/* Features avec contenu limité */
.features {
    background: white;
    width: 100%;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: clamp(2rem, 4vw, 3rem);
    max-width: var(--standard-content-width);
    margin: 0 auto;
    padding: 0 clamp(15px, 4vw, 40px);
}

.feature-card {
    background: white;
    padding: clamp(2rem, 4vw, 2.5rem);
    border-radius: 20px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

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

.feature-icon {
    font-size: clamp(2.5rem, 6vw, 3.5rem);
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Apps Preview avec largeur définie */
.apps-preview {
    background: var(--background-light);
    width: 100%;
}

.dailycore-showcase {
    margin-bottom: clamp(4rem, 6vw, 5rem);
    max-width: var(--standard-content-width);
    margin-left: auto;
    margin-right: auto;
    padding: 0 clamp(15px, 4vw, 40px);
}

.app-card-large {
    background: white;
    border-radius: 24px;
    padding: clamp(2.5rem, 5vw, 4rem);
    box-shadow: var(--shadow-lg);
    text-align: center;
    border: 1px solid var(--border-color);
}

.app-content-main h3 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.app-content-main p {
    max-width: 600px;
    margin: 0 auto 2rem auto;
}

.app-main-buttons {
    margin-bottom: 1.5rem;
}

.legal-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.legal-buttons .btn {
    min-width: 140px;
    font-size: clamp(13px, 2vw, 14px);
    padding: clamp(10px, 2vw, 12px) clamp(20px, 3vw, 24px);
}

/* Mockups Gallery avec carrousel optimisé */
.mockups-gallery {
    margin-top: clamp(4rem, 6vw, 5rem);
    max-width: var(--max-content-width);
    margin-left: auto;
    margin-right: auto;
    padding: 0 clamp(15px, 4vw, 40px);
}

.mockups-gallery h3 {
    text-align: center;
    margin-bottom: clamp(3rem, 5vw, 4rem);
}

/* Carousel avec centrage parfait - Version simplifiée */
.carousel-container {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: clamp(2rem, 4vw, 3rem) 0;
    padding: 0 clamp(60px, 10vw, 80px);
    width: 100%;
    max-width: var(--max-content-width);
    margin-left: auto;
    margin-right: auto;
}

.carousel-wrapper {
    width: 100%;
    max-width: 400px;
    position: relative;
    display: flex;
    justify-content: center;
}

.carousel-image-container {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    position: relative;
    overflow: hidden;
    min-height: clamp(450px, 70vw, 650px);
}

.mockup-image {
    width: 100%;
    max-width: clamp(250px, 40vw, 350px);
    height: clamp(450px, 70vw, 650px);
    object-fit: cover;
    border-radius: 28px;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.carousel-btn {
    background: var(--gradient-primary);
    color: white;
    border: none;
    width: clamp(50px, 10vw, 70px);
    height: clamp(50px, 10vw, 70px);
    border-radius: 50%;
    font-size: clamp(1.5rem, 3vw, 2rem);
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    z-index: 10;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.carousel-btn:hover {
    transform: translateY(-50%) scale(1.1);
    box-shadow: var(--shadow-lg);
}

.carousel-btn-left {
    left: clamp(10px, 3vw, 20px);
}

.carousel-btn-right {
    right: clamp(10px, 3vw, 20px);
}

.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: 0.8rem;
    margin-top: 2.5rem;
    flex-wrap: wrap;
}

.indicator {
    width: clamp(10px, 2vw, 14px);
    height: clamp(10px, 2vw, 14px);
    border-radius: 50%;
    background: var(--border-color);
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator.active {
    background: var(--primary-color);
    transform: scale(1.2);
}

.indicator:hover {
    background: var(--primary-color);
    opacity: 0.7;
}

/* Apps Grid avec largeur contrôlée */
.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: clamp(2rem, 4vw, 3rem);
    margin-top: clamp(4rem, 6vw, 5rem);
    max-width: var(--standard-content-width);
    margin-left: auto;
    margin-right: auto;
    padding: 0 clamp(15px, 4vw, 40px);
}

.app-card {
    background: white;
    border-radius: 20px;
    padding: clamp(2rem, 4vw, 2.5rem);
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

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

.app-image {
    width: 100%;
    height: clamp(180px, 25vw, 220px);
    background: var(--gradient-primary);
    border-radius: 16px;
    margin-bottom: 1.5rem;
}

.app-content h3 {
    margin-bottom: 0.8rem;
}

.app-subtitle {
    color: var(--text-secondary);
    font-size: clamp(0.85rem, 2vw, 0.95rem);
    margin-bottom: 1rem;
}

/* CTA avec arrière-plan full-width */
.cta {
    background: var(--gradient-primary);
    color: white;
    text-align: center;
    padding: clamp(4rem, 6vw, 5rem) 0;
    width: 100%;
}

.cta .container {
    max-width: var(--standard-content-width);
}

.cta h2 {
    color: white;
    margin-bottom: 1.5rem;
}

.cta p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Footer avec largeur contrôlée */
.footer {
    background: var(--background-dark);
    color: white;
    padding: clamp(3rem, 5vw, 4rem) 0 1.5rem 0;
    width: 100%;
}

/* Footer réorganisé */
.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: clamp(2rem, 4vw, 3rem);
    margin-bottom: 2.5rem;
    max-width: var(--standard-content-width);
    margin-left: auto;
    margin-right: auto;
    padding: 0 clamp(15px, 4vw, 40px);
}

.footer-brand {
    grid-column: 1;
}

.footer-brand h3 {
    color: white;
    margin-bottom: 1rem;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.footer-links {
    display: contents;
}

.footer-section {
    display: flex;
    flex-direction: column;
}

.footer-section h4 {
    color: white;
    margin-bottom: 1.5rem;
    font-size: clamp(1rem, 2.5vw, 1.1rem);
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: clamp(0.9rem, 2vw, 1rem);
    line-height: 1.5;
    margin-bottom: 0.8rem;
}

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

.footer-contact h4 {
    color: white;
    margin-bottom: 1.5rem;
}

.footer-contact p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.5rem;
    text-align: center;
    max-width: var(--standard-content-width);
    margin: 0 auto;
    padding-left: clamp(15px, 4vw, 40px);
    padding-right: clamp(15px, 4vw, 40px);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    margin: 0;
    font-size: clamp(0.85rem, 2vw, 0.95rem);
}

/* About Page */
.hero-about {
    background: var(--gradient-primary);
    color: white;
    text-align: center;
    padding: clamp(8rem, 12vw, 10rem) 0 clamp(5rem, 8vw, 7rem) 0;
    min-height: 70vh;
    display: flex;
    align-items: center;
    width: 100%;
}

.hero-about .container {
    max-width: var(--standard-content-width);
}

.hero-about h1 {
    color: white;
    margin-bottom: 1.5rem;
}

.hero-about .lead {
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin: 0 auto;
}

.founder {
    padding: clamp(4rem, 8vw, 6rem) 0;
    width: 100%;
}

.founder-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: clamp(2rem, 6vw, 4rem);
    align-items: flex-start;
    max-width: var(--container-narrow);
    margin: 0 auto;
    padding: 0 clamp(15px, 4vw, 40px);
}

.founder-text {
    line-height: 1.8;
}

.founder-text h2 {
    margin-bottom: clamp(1.5rem, 3vw, 2rem);
    margin-top: clamp(2rem, 4vw, 3rem);
}

.founder-text h2:first-child {
    margin-top: 0;
}

.founder-text h3 {
    margin-bottom: clamp(1rem, 2vw, 1.5rem);
    margin-top: clamp(1.5rem, 3vw, 2rem);
    color: var(--primary-color);
}

.founder-text ul {
    margin-bottom: 1.5rem;
    padding-left: clamp(1.5rem, 3vw, 2rem);
}

.founder-text li {
    margin-bottom: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.founder-subtitle {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-style: italic;
}

.founder-links {
    margin-top: 2rem;
}

.founder-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: clamp(1.5rem, 3vw, 2rem);
    margin-top: 3rem;
    max-width: var(--standard-content-width);
    margin-left: auto;
    margin-right: auto;
    padding: 0 clamp(15px, 4vw, 40px);
}

.stat {
    text-align: center;
    background: var(--background-light);
    padding: clamp(1.5rem, 3vw, 2rem);
    border-radius: 16px;
}

.stat h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat p {
    color: var(--text-secondary);
    font-weight: 500;
    margin: 0;
}

/* Mission */
.mission {
    background: var(--background-light);
    width: 100%;
}

.mission-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: clamp(2rem, 4vw, 3rem);
    max-width: var(--standard-content-width);
    margin: 0 auto;
    padding: 0 clamp(15px, 4vw, 40px);
}

.mission-card {
    background: white;
    padding: clamp(2rem, 4vw, 2.5rem);
    border-radius: 20px;
    box-shadow: var(--shadow);
    text-align: center;
    border: 1px solid var(--border-color);
}

.mission-icon {
    font-size: clamp(2.5rem, 6vw, 3.5rem);
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

/* Tech Stack */
.tech-stack {
    background: white;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: clamp(1.5rem, 4vw, 2rem);
}

.tech-category {
    background: var(--background-light);
    padding: clamp(1.5rem, 4vw, 2rem);
    border-radius: 16px;
    text-align: center;
}

.tech-category h3 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.tech-items {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

.tech-item {
    background: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: clamp(0.8rem, 2vw, 0.9rem);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

/* Roadmap */
.roadmap {
    background: var(--background-light);
}

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

.timeline-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: clamp(2rem, 5vw, 3rem);
    position: relative;
}

.timeline-marker {
    width: clamp(16px, 3vw, 20px);
    height: clamp(16px, 3vw, 20px);
    background: var(--primary-color);
    border-radius: 50%;
    margin-right: clamp(1rem, 3vw, 2rem);
    margin-top: 0.5rem;
    flex-shrink: 0;
    position: relative;
}

.timeline-marker.current {
    background: var(--success-color);
}

.timeline-marker::after {
    content: '';
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: clamp(40px, 8vw, 60px);
    background: var(--border-color);
}

.timeline-item:last-child .timeline-marker::after {
    display: none;
}

.timeline-content {
    background: white;
    padding: clamp(1rem, 3vw, 1.5rem);
    border-radius: 12px;
    box-shadow: var(--shadow);
    flex: 1;
}

.timeline-content h3 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

/* Apps Page */
.hero-apps {
    background: var(--gradient-accent);
    color: white;
    text-align: center;
    padding: clamp(6rem, 12vw, 8rem) 0 clamp(4rem, 8vw, 6rem) 0;
    min-height: 60vh;
    display: flex;
    align-items: center;
}

.hero-apps h1 {
    color: white;
    margin-bottom: 1rem;
}

.hero-apps .lead {
    color: rgba(255, 255, 255, 0.9);
}

/* DailyCore page - Améliorations */
.app-detail {
    padding: clamp(3rem, 8vw, 5rem) 0;
}

.app-detail.alt {
    background: var(--background-light);
}

.app-detail-header {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: clamp(3rem, 6vw, 4rem);
    align-items: center;
    margin-bottom: clamp(4rem, 8vw, 6rem);
    max-width: var(--standard-content-width);
    margin-left: auto;
    margin-right: auto;
    padding: 0 clamp(15px, 4vw, 40px);
}

/* Logo DailyCore sans fond violet */
.app-icon {
    width: clamp(100px, 15vw, 140px);
    height: clamp(100px, 15vw, 140px);
    background: white;
    border-radius: 28px;
    flex-shrink: 0;
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 8px;
}

.app-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 20px;
}

.app-header-content h1 {
    margin-bottom: 1rem;
    font-size: clamp(2.5rem, 5vw, 3.5rem);
}

.app-tagline {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-weight: 400;
    font-size: clamp(1.1rem, 3vw, 1.4rem);
    line-height: 1.5;
}

.app-description {
    line-height: 1.7;
    color: var(--text-secondary);
    font-size: clamp(1rem, 2.5vw, 1.1rem);
    max-width: 600px;
}

/* Features avec mise en page améliorée */
.app-features {
    margin-top: clamp(4rem, 8vw, 6rem);
    max-width: var(--standard-content-width);
    margin-left: auto;
    margin-right: auto;
    padding: 0 clamp(15px, 4vw, 40px);
}

.app-features h3 {
    margin-bottom: 3rem;
    text-align: center;
    font-size: clamp(2rem, 4vw, 2.5rem);
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    margin-bottom: 3rem;
    padding: clamp(2rem, 4vw, 2.5rem);
    background: white;
    border-radius: 20px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-item .feature-icon {
    font-size: clamp(2rem, 4vw, 2.5rem);
    color: var(--primary-color);
    margin: 0;
    flex-shrink: 0;
    width: clamp(60px, 10vw, 80px);
    text-align: center;
}

.feature-item-content {
    flex: 1;
}

.feature-item h4 {
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-size: clamp(1.3rem, 3vw, 1.5rem);
}

.feature-item p {
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.6;
    font-size: clamp(1rem, 2.5vw, 1.1rem);
}

/* Screenshots avec taille réelle (non aplatis) */
.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: clamp(2rem, 5vw, 3rem);
    margin-top: clamp(4rem, 8vw, 6rem);
    max-width: var(--max-content-width);
    margin-left: auto;
    margin-right: auto;
    padding: 0 clamp(15px, 4vw, 40px);
}

.screenshot {
    background: white;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.screenshot:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.screenshot-img {
    width: 100%;
    height: auto;
    min-height: 500px;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.screenshot-img img {
    width: 100%;
    height: auto;
    object-fit: contain;
    background: white;
    max-height: none;
}

.screenshot h4 {
    padding: clamp(1.5rem, 4vw, 2rem);
    margin: 0;
    color: var(--text-primary);
    font-size: clamp(1.1rem, 2.5vw, 1.3rem);
    text-align: center;
    line-height: 1.4;
}

/* Pricing avec mise en page améliorée */
.app-pricing {
    background: var(--background-light);
    padding: clamp(4rem, 8vw, 6rem) 0;
}

.app-pricing h3 {
    text-align: center;
    margin-bottom: clamp(3rem, 6vw, 4rem);
    font-size: clamp(2rem, 4vw, 2.5rem);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: clamp(2rem, 5vw, 3rem);
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 clamp(15px, 4vw, 40px);
}

.pricing-card {
    background: white;
    padding: clamp(2.5rem, 5vw, 3rem);
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    position: relative;
}

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

.pricing-card.featured {
    border-color: var(--primary-color);
    transform: none;
}

.pricing-card.featured::before {
    content: "Recommandé";
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: white;
    padding: 0.5rem 2rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.pricing-card.featured h4,
.pricing-card h4 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    font-size: clamp(1.3rem, 3vw, 1.5rem);
}

.price {
    font-size: clamp(2.5rem, 6vw, 3.5rem);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    line-height: 1;
}

.price span {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--text-secondary);
}

.price-monthly {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: clamp(0.9rem, 2vw, 1rem);
}

.pricing-card ul {
    list-style: none;
    margin-bottom: 2.5rem;
    text-align: left;
}

.pricing-card li {
    padding: 0.8rem 0;
    color: var(--text-secondary);
    font-size: clamp(0.9rem, 2vw, 1rem);
    border-bottom: 1px solid var(--border-color);
    position: relative;
    padding-left: 2rem;
}

.pricing-card li:last-child {
    border-bottom: none;
}

.pricing-card li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

.pricing-card.featured li {
    color: var(--text-primary);
}

.tech-stack-app {
    background: white;
    padding: clamp(3rem, 8vw, 5rem) 0;
}

.tech-item-app {
    background: var(--background-light);
    padding: clamp(1rem, 3vw, 1.5rem);
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
}

.tech-item-app:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.tech-item-app h4 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.tech-item-app p {
    color: var(--text-secondary);
    margin: 0;
}

.download-cta {
    background: var(--gradient-primary);
    color: white;
    text-align: center;
    padding: clamp(3rem, 6vw, 4rem) 0;
}

.download-cta h2 {
    color: white;
    margin-bottom: 1rem;
}

.download-cta p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
}

.download-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Contact Page */
.hero-contact {
    background: var(--gradient-accent);
    color: white;
    text-align: center;
    padding: clamp(6rem, 12vw, 8rem) 0 clamp(4rem, 8vw, 6rem) 0;
    min-height: 60vh;
    display: flex;
    align-items: center;
}

.hero-contact h1 {
    color: white;
    margin-bottom: 1rem;
}

.hero-contact .lead {
    color: rgba(255, 255, 255, 0.9);
}

.contact-main {
    padding: clamp(3rem, 8vw, 5rem) 0;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(2rem, 6vw, 4rem);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: clamp(1rem, 3vw, 1.5rem);
    background: var(--background-light);
    border-radius: 12px;
}

.contact-icon {
    font-size: clamp(1.5rem, 4vw, 2rem);
    color: var(--primary-color);
    flex-shrink: 0;
}

.contact-card h3 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.contact-card p {
    color: var(--text-secondary);
    margin: 0;
}

.contact-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.contact-link:hover {
    text-decoration: underline;
}

.form-container {
    background: white;
    padding: clamp(2rem, 4vw, 3rem);
    border-radius: 16px;
    box-shadow: var(--shadow);
}

.form-container h2 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.form-container p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: clamp(0.75rem, 2vw, 1rem);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: clamp(0.9rem, 2vw, 1rem);
    transition: border-color 0.3s ease;
    width: 100%;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: clamp(0.8rem, 2vw, 0.9rem);
    color: var(--text-secondary);
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin: 0;
}

/* FAQ */
.faq {
    background: var(--background-light);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: clamp(1.5rem, 4vw, 2rem);
}

.faq-item {
    background: white;
    padding: clamp(1.5rem, 4vw, 2rem);
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.faq-item h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.faq-item p {
    color: var(--text-secondary);
    margin: 0;
}

/* Responsive Design */
@media (max-width: 1200px) {
    :root {
        --max-content-width: 1100px;
        --standard-content-width: 1000px;
    }
}

@media (max-width: 1024px) {
    .nav-container {
        padding-left: clamp(15px, 4vw, 30px);
        padding-right: clamp(15px, 4vw, 30px);
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: clamp(2rem, 5vw, 3rem);
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .app-detail-header {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    :root {
        --max-content-width: 100%;
        --standard-content-width: 100%;
    }

    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 2rem;
        box-shadow: var(--shadow);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        gap: 1.5rem;
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-toggle {
        display: flex;
    }
    
    .container,
    .container-large,
    .container-narrow {
        padding: 0 clamp(15px, 5vw, 25px);
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
        width: 100%;
        gap: 1rem;
    }
    
    .hero-buttons .btn {
        width: 100%;
        max-width: 280px;
    }

    .founder-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
        text-align: center;
    }

    .feature-item {
        flex-direction: column;
        text-align: center;
    }
    
    .contact-card {
        flex-direction: column;
        text-align: center;
    }
    
    /* Carousel optimisé pour mobile */
    .carousel-container {
        padding: 0 clamp(50px, 12vw, 70px);
        margin: 2rem 0;
    }
    
    .carousel-btn {
        width: clamp(45px, 10vw, 60px);
        height: clamp(45px, 10vw, 60px);
        font-size: clamp(1.3rem, 3vw, 1.7rem);
    }
    
    .mockup-image {
        max-width: clamp(220px, 60vw, 300px);
        height: clamp(380px, 80vw, 550px);
    }
    
    .legal-buttons {
        flex-direction: column;
        align-items: center;
        gap: 0.8rem;
    }
    
    .legal-buttons .btn {
        width: 100%;
        max-width: 200px;
    }
    
    .features-grid,
    .apps-grid,
    .mission-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container,
    .container-large,
    .container-narrow {
        padding: 0 15px;
    }

    .section-header {
        margin-bottom: 2rem;
    }
    
    .carousel-container {
        padding: 0 40px;
    }
    
    .carousel-btn {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
    
    .mockup-image {
        max-width: 200px;
        height: 350px;
    }
    
    .screenshot-img {
        min-height: 350px;
    }
}

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

.feature-card,
.app-card,
.mission-card,
.contact-card {
    animation: fadeInUp 0.6s ease-out;
}

/* Smooth scroll offset pour header fixe */
html {
    scroll-padding-top: 100px;
}

/* Amélioration des images responsive */
img {
    max-width: 100%;
    height: auto;
}

/* Utilitaires */
.text-center {
    text-align: center;
}

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-1 { margin-top: 1rem; }
.mb-1 { margin-bottom: 1rem; }
.mt-2 { margin-top: 2rem; }
.mb-2 { margin-bottom: 2rem; }