/* ========================================
   PREMIUM DESIGN ENHANCEMENTS
   Touches Supérieures de Design
   Améliorations visuelles avancées
   ======================================== */

/* ========================================
   1. GLASSMORPHISM AVANCÉ
   ======================================== */

.hero,
.feature-card,
.screenshot-card {
    position: relative;
    overflow: hidden;
}

.hero::before,
.feature-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: rotate-shine 8s linear infinite;
    pointer-events: none;
    z-index: 0;
}

@keyframes rotate-shine {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ========================================
   2. NAVBAR PREMIUM - Glassmorphism amélioré
   ======================================== */

.navbar {
    background: rgba(15, 32, 39, 0.7) !important;
    backdrop-filter: blur(30px) saturate(200%) !important;
    -webkit-backdrop-filter: blur(30px) saturate(200%) !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15) !important;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.4),
        0 0 0 1px rgba(255, 255, 255, 0.05) inset,
        0 1px 0 rgba(255, 255, 255, 0.1) inset !important;
}

/* ========================================
   3. BOUTONS PREMIUM - Effet magnétique et glow
   ======================================== */

.btn-primary,
.btn-secondary {
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.btn-primary::before,
.btn-secondary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
    pointer-events: none;
    z-index: 0;
}

.btn-primary:hover::before,
.btn-secondary:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    background-size: 200% auto;
    box-shadow: 
        0 10px 30px rgba(102, 126, 234, 0.4),
        0 0 0 0 rgba(102, 126, 234, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    animation: gradient-shift 3s ease infinite;
    position: relative;
    z-index: 1;
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 
        0 15px 40px rgba(102, 126, 234, 0.6),
        0 0 30px rgba(102, 126, 234, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    background-position: right center;
}

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

.btn-secondary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 
        0 15px 40px rgba(255, 255, 255, 0.2),
        0 0 30px rgba(255, 255, 255, 0.1);
}

@keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* ========================================
   4. TITRE HERO - Effet de brillance animé
   ======================================== */

.hero-title {
    position: relative;
    background: linear-gradient(135deg, #ffffff 0%, #f0f0f0 50%, #ffffff 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer-text 3s ease-in-out infinite;
    filter: drop-shadow(0 2px 10px rgba(255, 255, 255, 0.3));
}

.gradient-text {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 50%, #4facfe 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer-text 3s ease-in-out infinite;
    filter: drop-shadow(0 0 20px rgba(79, 172, 254, 0.5));
}

@keyframes shimmer-text {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* ========================================
   5. CARDS PREMIUM - Effet 3D et glassmorphism
   ======================================== */

.feature-card,
.screenshot-card,
.use-case {
    position: relative;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    transform-style: preserve-3d;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.2),
        0 0 0 1px rgba(255, 255, 255, 0.05) inset;
}

.feature-card::after,
.screenshot-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.5s;
    pointer-events: none;
}

.feature-card:hover,
.screenshot-card:hover {
    transform: translateY(-10px) rotateX(2deg) rotateY(2deg) scale(1.02);
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.3),
        0 0 40px rgba(79, 172, 254, 0.2),
        0 0 0 1px rgba(255, 255, 255, 0.1) inset;
    border-color: rgba(255, 255, 255, 0.2);
}

.feature-card:hover::after,
.screenshot-card:hover::after {
    opacity: 1;
}

/* ========================================
   6. BACKGROUND PARTICULES ANIMÉES
   ======================================== */

.hero {
    position: relative;
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(79, 172, 254, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(102, 126, 234, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(118, 75, 162, 0.1) 0%, transparent 50%);
    animation: float-particles 20s ease-in-out infinite;
    pointer-events: none;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
}

@keyframes float-particles {
    0%, 100% {
        transform: translate(0, 0) scale(1);
        opacity: 1;
    }
    33% {
        transform: translate(30px, -30px) scale(1.1);
        opacity: 0.8;
    }
    66% {
        transform: translate(-20px, 20px) scale(0.9);
        opacity: 0.9;
    }
}

/* ========================================
   7. NAVIGATION LINKS - Effet de vague au survol
   ======================================== */

.nav-links a {
    position: relative;
    overflow: hidden;
}

.nav-links a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, #4facfe 0%, #00f2fe 100%);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 0 10px rgba(79, 172, 254, 0.5);
}

.nav-links a:hover::before {
    transform: scaleX(1);
}

.nav-links a:hover {
    color: #00f2fe;
    text-shadow: 0 0 10px rgba(0, 242, 254, 0.5);
    transform: translateY(-2px);
}

/* ========================================
   8. LOGO PREMIUM - Effet de pulse et glow
   ======================================== */

.logo {
    position: relative;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.logo::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(21, 101, 192, 0.3) 0%, transparent 70%);
    transform: translate(-50%, -50%) scale(0);
    border-radius: 50%;
    transition: transform 0.6s;
    pointer-events: none;
    z-index: -1;
}

.logo:hover::before {
    transform: translate(-50%, -50%) scale(1);
}

.logo:hover {
    transform: scale(1.05) rotate(2deg);
    filter: drop-shadow(0 0 20px rgba(21, 101, 192, 0.6));
}

/* ========================================
   9. BADGE PREMIUM - Effet de brillance
   ======================================== */

.badge {
    position: relative;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.15) !important;
    backdrop-filter: blur(15px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 
        0 4px 15px rgba(0, 0, 0, 0.2),
        0 0 20px rgba(79, 172, 254, 0.2) inset;
}

.badge::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transform: rotate(45deg);
    animation: shine-badge 3s ease-in-out infinite;
    pointer-events: none;
}

@keyframes shine-badge {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

/* ========================================
   10. STATS PREMIUM - Effet de compteur animé
   ======================================== */

.hero-stats {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.stat {
    position: relative;
    padding: 1rem 1.5rem;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    overflow: hidden;
    flex: 1;
    min-width: 120px;
}

.stat::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
    pointer-events: none;
}

.stat:hover::before {
    left: 100%;
}

.stat:hover {
    transform: translateY(-5px) scale(1.05);
    background: rgba(255, 255, 255, 0.12);
    box-shadow: 
        0 10px 30px rgba(0, 0, 0, 0.3),
        0 0 20px rgba(79, 172, 254, 0.2);
    border-color: rgba(255, 255, 255, 0.2);
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, #fff 0%, #4facfe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 10px rgba(79, 172, 254, 0.5));
    line-height: 1.2;
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
    margin-top: 0.25rem;
}

/* ========================================
   11. SCROLL PROGRESS BAR PREMIUM
   ======================================== */

.scroll-progress {
    height: 4px;
    background: linear-gradient(90deg, #4facfe 0%, #00f2fe 50%, #4facfe 100%);
    background-size: 200% auto;
    animation: gradient-shift 3s ease infinite;
    box-shadow: 0 0 10px rgba(79, 172, 254, 0.5);
}

/* ========================================
   12. INPUT PREMIUM - Effet de focus amélioré
   ======================================== */

input[type="email"],
input[type="text"],
textarea {
    position: relative;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.4s;
}

input[type="email"]:focus,
input[type="text"]:focus,
textarea:focus {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(79, 172, 254, 0.5);
    box-shadow: 
        0 0 0 3px rgba(79, 172, 254, 0.2),
        0 0 20px rgba(79, 172, 254, 0.3);
    transform: translateY(-2px);
    outline: none;
}

/* ========================================
   13. LANGUAGE SWITCHER PREMIUM
   ======================================== */

.lang-switcher {
    background: rgba(0, 0, 0, 0.3) !important;
    backdrop-filter: blur(15px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.15) !important;
    box-shadow: 
        0 4px 15px rgba(0, 0, 0, 0.2),
        0 0 0 1px rgba(255, 255, 255, 0.05) inset;
}

.lang-btn {
    position: relative;
    overflow: hidden;
    transition: all 0.3s;
}

.lang-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(79, 172, 254, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.4s, height 0.4s;
    pointer-events: none;
    z-index: 0;
}

.lang-btn:hover::before {
    width: 100px;
    height: 100px;
}

.lang-btn[aria-pressed="true"] {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    box-shadow: 
        0 4px 15px rgba(79, 172, 254, 0.4),
        0 0 20px rgba(79, 172, 254, 0.3) inset;
    position: relative;
    z-index: 1;
}

/* ========================================
   14. FAQ CARDS PREMIUM
   ======================================== */

.faq-item {
    position: relative;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.faq-item:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 
        0 10px 30px rgba(0, 0, 0, 0.2),
        0 0 20px rgba(79, 172, 254, 0.1);
    transform: translateY(-2px);
}

.faq-item.active {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(79, 172, 254, 0.3);
    box-shadow: 
        0 15px 40px rgba(0, 0, 0, 0.3),
        0 0 30px rgba(79, 172, 254, 0.2);
}

/* ========================================
   15. PHONE MOCKUP PREMIUM
   ======================================== */

.phone-frame,
.phone-mockup {
    position: relative;
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.phone-frame:hover,
.phone-mockup:hover {
    transform: translateY(-10px) scale(1.02);
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
}

.phone-frame::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, #4facfe, #00f2fe, #4facfe);
    background-size: 200% auto;
    border-radius: inherit;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.5s;
    animation: gradient-shift 3s ease infinite;
}

.phone-frame:hover::before {
    opacity: 0.5;
}

/* ========================================
   16. RESPONSIVE - Ajustements pour mobile
   ======================================== */

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .btn-primary,
    .btn-secondary {
        padding: 14px 28px;
        font-size: 16px;
    }
    
    .feature-card:hover,
    .screenshot-card:hover {
        transform: translateY(-5px) scale(1.01);
    }
    
    .stat {
        min-width: 100px;
        padding: 0.75rem 1rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .hero-stats {
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .stat {
        min-width: 80px;
        padding: 0.5rem 0.75rem;
    }
    
    .stat-number {
        font-size: 1.25rem;
    }
}

/* ========================================
   17. PERFORMANCE - Réduire les animations si nécessaire
   ======================================== */

@media (prefers-reduced-motion: reduce) {
    .hero::before,
    .hero::after,
    .badge::before,
    .stat::before {
        animation: none;
    }
    
    .hero-title,
    .gradient-text {
        animation: none;
    }
    
    .btn-primary {
        animation: none;
    }
    
    .feature-card:hover,
    .screenshot-card:hover {
        transform: translateY(-5px);
    }
}

/* ========================================
   18. ACCESSIBILITY - Améliorer le contraste
   ======================================== */

@media (prefers-contrast: high) {
    .feature-card,
    .screenshot-card {
        border: 2px solid rgba(255, 255, 255, 0.5);
    }
    
    .btn-primary {
        border: 2px solid rgba(255, 255, 255, 0.3);
    }
}

/* ========================================
   19. SECTION HEADERS PREMIUM
   ======================================== */

.section-header {
    position: relative;
    text-align: center;
    margin-bottom: 3rem;
}

.section-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1rem;
    position: relative;
    overflow: hidden;
    transition: all 0.4s;
}

.section-badge::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transform: rotate(45deg);
    animation: shine-badge 3s ease-in-out infinite;
    pointer-events: none;
}

.section-badge:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(79, 172, 254, 0.5);
    box-shadow: 
        0 4px 15px rgba(0, 0, 0, 0.2),
        0 0 20px rgba(79, 172, 254, 0.2);
    transform: translateY(-2px);
}

.section-title {
    position: relative;
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, #ffffff 0%, #4facfe 50%, #ffffff 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer-text 3s ease-in-out infinite;
    filter: drop-shadow(0 2px 10px rgba(255, 255, 255, 0.3));
    margin-bottom: 1rem;
}

.section-description {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.8);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ========================================
   20. FEATURE ICONS PREMIUM
   ======================================== */

.feature-icon {
    position: relative;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    border-radius: 20px;
    margin-bottom: 1.5rem;
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    overflow: hidden;
}

.feature-icon::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
    pointer-events: none;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
    filter: drop-shadow(0 10px 20px rgba(79, 172, 254, 0.4));
}

.feature-card:hover .feature-icon::before {
    width: 150px;
    height: 150px;
}

.feature-title {
    position: relative;
    transition: all 0.3s;
}

.feature-card:hover .feature-title {
    color: #4facfe;
    text-shadow: 0 0 10px rgba(79, 172, 254, 0.3);
}

/* ========================================
   21. STEPS PREMIUM (How It Works)
   ======================================== */

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.step {
    position: relative;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    overflow: hidden;
}

.step::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.6s;
    pointer-events: none;
}

.step:hover::before {
    left: 100%;
}

.step:hover {
    transform: translateY(-10px) scale(1.02);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(79, 172, 254, 0.3);
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.3),
        0 0 40px rgba(79, 172, 254, 0.2);
}

.step-number {
    position: absolute;
    top: -20px;
    right: 20px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    color: white;
    box-shadow: 
        0 10px 30px rgba(79, 172, 254, 0.4),
        0 0 20px rgba(79, 172, 254, 0.3);
    transition: all 0.4s;
}

.step:hover .step-number {
    transform: scale(1.2) rotate(360deg);
    box-shadow: 
        0 15px 40px rgba(79, 172, 254, 0.6),
        0 0 30px rgba(79, 172, 254, 0.4);
}

.step-icon {
    font-size: 4rem;
    margin: 1rem 0;
    transition: all 0.4s;
    filter: drop-shadow(0 5px 15px rgba(255, 255, 255, 0.2));
}

.step:hover .step-icon {
    transform: scale(1.2) rotate(10deg);
    filter: drop-shadow(0 10px 25px rgba(79, 172, 254, 0.5));
}

.step-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 1rem 0;
    background: linear-gradient(135deg, #fff 0%, #4facfe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all 0.3s;
}

.step-description {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    transition: all 0.3s;
}

.step:hover .step-description {
    color: rgba(255, 255, 255, 0.95);
}

/* ========================================
   22. STATS SECTION PREMIUM
   ======================================== */

.stats-section {
    position: relative;
    overflow: hidden;
}

.stats-section::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(79, 172, 254, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(102, 126, 234, 0.2) 0%, transparent 50%);
    animation: float-particles 15s ease-in-out infinite;
    pointer-events: none;
    z-index: 0;
}

.stats-grid {
    position: relative;
    z-index: 1;
}

.stat-card {
    position: relative;
    background: rgba(255, 255, 255, 0.08) !important;
    backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 20px;
    padding: 2.5rem 2rem;
    text-align: center;
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(79, 172, 254, 0.2) 0%, transparent 70%);
    transform: rotate(0deg);
    transition: transform 0.8s;
    pointer-events: none;
}

.stat-card:hover::before {
    transform: rotate(360deg);
}

.stat-card:hover {
    transform: translateY(-10px) scale(1.05);
    background: rgba(255, 255, 255, 0.12) !important;
    border-color: rgba(79, 172, 254, 0.4);
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.4),
        0 0 40px rgba(79, 172, 254, 0.3);
}

.stat-card .stat-number {
    position: relative;
    font-size: 4rem;
    font-weight: 900;
    background: linear-gradient(135deg, #fff 0%, #4facfe 50%, #00f2fe 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer-text 3s ease-in-out infinite;
    filter: drop-shadow(0 0 15px rgba(79, 172, 254, 0.5));
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-card .stat-label {
    font-size: 1.25rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 0.25rem;
}

.stat-card .stat-sublabel {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
}

/* ========================================
   23. TESTIMONIALS PREMIUM
   ======================================== */

.testimonials {
    position: relative;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.testimonial-card {
    position: relative;
    background: rgba(255, 255, 255, 0.05) !important;
    backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2.5rem;
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    overflow: hidden;
}

.testimonial-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #4facfe 0%, #00f2fe 50%, #4facfe 100%);
    background-size: 200% auto;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s;
    animation: gradient-shift 3s ease infinite;
}

.testimonial-card:hover::before {
    transform: scaleX(1);
}

.testimonial-card:hover {
    transform: translateY(-10px) scale(1.02);
    background: rgba(255, 255, 255, 0.08) !important;
    border-color: rgba(79, 172, 254, 0.3);
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.3),
        0 0 40px rgba(79, 172, 254, 0.2);
}

.testimonial-rating {
    color: #FFD700;
    font-size: 1.5rem;
    margin-bottom: 1rem;
    letter-spacing: 3px;
    filter: drop-shadow(0 0 10px rgba(255, 215, 0, 0.5));
    transition: all 0.3s;
}

.testimonial-card:hover .testimonial-rating {
    transform: scale(1.1);
    filter: drop-shadow(0 0 15px rgba(255, 215, 0, 0.7));
}

.testimonial-text {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
    font-style: italic;
    margin-bottom: 1.5rem;
    position: relative;
}

.testimonial-text::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: -10px;
    font-size: 4rem;
    color: rgba(79, 172, 254, 0.3);
    font-family: serif;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: rgba(255, 255, 255, 0.8);
}

/* ========================================
   24. USE CASE PREMIUM
   ======================================== */

.use-cases {
    position: relative;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.use-case {
    position: relative;
    background: rgba(255, 255, 255, 0.05) !important;
    backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2.5rem;
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    overflow: hidden;
}

.use-case::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, rgba(79, 172, 254, 0.5), rgba(0, 242, 254, 0.5));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.5s;
    pointer-events: none;
}

.use-case:hover::after {
    opacity: 1;
}

.use-case:hover {
    transform: translateY(-10px) rotateX(2deg) scale(1.02);
    background: rgba(255, 255, 255, 0.08) !important;
    border-color: rgba(79, 172, 254, 0.3);
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.3),
        0 0 40px rgba(79, 172, 254, 0.2);
}

.use-case-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    transition: all 0.4s;
    filter: drop-shadow(0 5px 15px rgba(255, 255, 255, 0.2));
    display: block;
}

.use-case:hover .use-case-icon {
    transform: scale(1.2) rotate(10deg);
    filter: drop-shadow(0 10px 25px rgba(79, 172, 254, 0.5));
}

.use-case h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #fff 0%, #4facfe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all 0.3s;
}

.use-case:hover h3 {
    filter: drop-shadow(0 0 10px rgba(79, 172, 254, 0.5));
}

.feature-pill {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(79, 172, 254, 0.2);
    color: #4facfe;
    border: 1px solid rgba(79, 172, 254, 0.3);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    transition: all 0.3s;
    margin: 0.25rem;
}

.use-case:hover .feature-pill {
    background: rgba(79, 172, 254, 0.3);
    border-color: rgba(79, 172, 254, 0.5);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(79, 172, 254, 0.3);
}

/* ========================================
   25. SCREENSHOTS PLACEHOLDER PREMIUM
   ======================================== */

.screenshots-placeholder {
    text-align: center;
    padding: 4rem 2rem;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 30px;
    position: relative;
    overflow: hidden;
}

.screenshots-placeholder::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(79, 172, 254, 0.1) 0%, transparent 70%);
    animation: rotate-shine 10s linear infinite;
    pointer-events: none;
}

.screenshots-placeholder > div[style*="font-size: 80px"] {
    position: relative;
    z-index: 1;
    animation: float 3s ease-in-out infinite;
    filter: drop-shadow(0 10px 30px rgba(79, 172, 254, 0.3));
}

.screenshots-title {
    position: relative;
    z-index: 1;
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, #fff 0%, #4facfe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 1.5rem 0;
}

.screenshots-badge {
    position: relative;
    z-index: 1;
    display: inline-block;
    padding: 0.75rem 2rem;
    background: rgba(79, 172, 254, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(79, 172, 254, 0.3);
    border-radius: 50px;
    font-weight: 600;
    color: #4facfe;
    margin-top: 1.5rem;
    transition: all 0.3s;
}

.screenshots-badge:hover {
    background: rgba(79, 172, 254, 0.3);
    border-color: rgba(79, 172, 254, 0.5);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(79, 172, 254, 0.3);
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* ========================================
   26. FOOTER PREMIUM
   ======================================== */

footer,
.footer {
    position: relative;
    background: rgba(0, 0, 0, 0.4) !important;
    backdrop-filter: blur(30px) saturate(180%);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 3rem 0 1.5rem;
    overflow: hidden;
}

footer::before,
.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, #4facfe 0%, #00f2fe 50%, #4facfe 100%);
    background-size: 200% auto;
    animation: gradient-shift 3s ease infinite;
}

.footer-content {
    position: relative;
    z-index: 1;
}

.footer-title {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #fff 0%, #4facfe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

.footer-list a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s;
    position: relative;
    display: inline-block;
}

.footer-list a::before {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #4facfe 0%, #00f2fe 100%);
    transition: width 0.3s;
}

.footer-list a:hover {
    color: #4facfe;
    transform: translateX(5px);
}

.footer-list a:hover::before {
    width: 100%;
}

.copyright {
    color: rgba(255, 255, 255, 0.6);
    text-align: center;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ========================================
   27. RESPONSIVE ENHANCEMENTS (CONSOLIDÉ)
   Ces règles sont maintenant intégrées dans la section 28
   pour éviter les conflits et assurer la cohérence
   ======================================== */

/* Règles de priorité pour garantir la cohérence responsive */
/* Ces règles s'appliquent après styles.css pour assurer la cohérence */

@media (max-width: 1024px) {
    .steps-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }
    
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }
    
    .use-cases-grid {
        grid-template-columns: 1fr !important;
    }
}

@media (max-width: 768px) {
    .section-title {
        font-size: clamp(1.75rem, 4vw + 0.5rem, 2rem) !important;
    }
    
    .steps-grid {
        grid-template-columns: 1fr !important;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr !important;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }
    
    .stat-card .stat-number {
        font-size: clamp(2.5rem, 5vw + 1rem, 3rem) !important;
    }
    
    .feature-icon {
        width: 60px !important;
        height: 60px !important;
        font-size: 2rem !important;
    }
    
    .step-icon {
        font-size: 3rem !important;
    }
    
    .use-case-icon {
        font-size: 3rem !important;
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: clamp(1.5rem, 5vw + 0.5rem, 1.75rem) !important;
    }
    
    .stats-grid {
        grid-template-columns: 1fr !important;
    }
    
    .stat-card {
        padding: 2rem 1.5rem !important;
    }
    
    .stat-card .stat-number {
        font-size: clamp(2rem, 6vw + 1rem, 2.5rem) !important;
    }
}

/* ========================================
   28. RESPONSIVE OPTIMIZATIONS COMPLÈTES
   Optimisations pour TOUTES les plateformes
   iOS, Android, Tablettes, Desktop
   ======================================== */

/* ========================================
   TYPOGRAPHIE FLUIDE - clamp() pour adaptation automatique
   ======================================== */

.hero-title {
    font-size: clamp(2rem, 5vw + 1rem, 3.5rem);
    line-height: clamp(1.1, 1.1, 1.2);
    overflow-wrap: break-word;
    word-wrap: break-word;
    word-break: break-word;
    hyphens: auto;
}

.section-title {
    font-size: clamp(1.75rem, 4vw + 0.5rem, 2.5rem);
    line-height: clamp(1.2, 1.2, 1.3);
    overflow-wrap: break-word;
    word-wrap: break-word;
}

.hero-description {
    font-size: clamp(1rem, 2vw + 0.5rem, 1.25rem);
    line-height: clamp(1.6, 1.6, 1.8);
    overflow-wrap: break-word;
    word-wrap: break-word;
    word-break: break-word;
    hyphens: auto;
}

.section-description {
    font-size: clamp(0.95rem, 1.5vw + 0.5rem, 1.125rem);
    line-height: clamp(1.6, 1.6, 1.7);
}

/* ========================================
   BREAKPOINTS COMPLETS - Tous les appareils
   ======================================== */

/* Desktop Large (1440px+) */
@media (min-width: 1440px) {
    .container {
        max-width: 1400px;
        padding: 0 2rem;
    }
    
    .hero-content {
        gap: 4rem;
    }
    
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 2.5rem;
    }
}

/* Desktop Medium (1280px - 1439px) */
@media (max-width: 1439px) and (min-width: 1280px) {
    .container {
        max-width: 1200px;
        padding: 0 2rem;
    }
}

/* Desktop Small / Tablette Paysage (1024px - 1279px) */
@media (max-width: 1279px) and (min-width: 1024px) {
    .container {
        padding: 0 1.5rem;
    }
    
    .hero-title {
        font-size: clamp(2.5rem, 4vw + 1rem, 3rem);
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
    
    .use-cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Tablette Portrait / Grand Téléphone (968px - 1023px) */
@media (max-width: 1023px) and (min-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text {
        order: 1;
    }
    
    .hero-image {
        order: 2;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Tablette Portrait / Mobile Large (768px - 967px) */
@media (max-width: 967px) and (min-width: 768px) {
    .hero-title {
        font-size: clamp(2rem, 5vw + 0.5rem, 2.5rem);
    }
    
    .section-title {
        font-size: clamp(1.75rem, 4vw + 0.5rem, 2rem);
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .use-cases-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-card {
        padding: 2rem 1.5rem;
    }
    
    .stat-card .stat-number {
        font-size: clamp(2.5rem, 5vw + 1rem, 3rem);
    }
}

/* Mobile Large (640px - 767px) */
@media (max-width: 767px) and (min-width: 640px) {
    .hero-title {
        font-size: clamp(1.875rem, 5vw + 0.5rem, 2.25rem);
    }
    
    .section-title {
        font-size: clamp(1.625rem, 4vw + 0.5rem, 1.875rem);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .steps-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .stat-card {
        padding: 1.75rem 1.25rem;
    }
    
    .stat-card .stat-number {
        font-size: clamp(2.25rem, 5vw + 1rem, 2.75rem);
    }
    
    .feature-card,
    .use-case,
    .step {
        padding: 2rem 1.5rem;
    }
    
    .btn-primary,
    .btn-secondary {
        padding: 14px 24px;
        font-size: 16px;
        min-height: 44px;
    }
}

/* Mobile Medium (480px - 639px) */
@media (max-width: 639px) and (min-width: 480px) {
    .container {
        padding: 0 1.25rem;
    }
    
    .hero-title {
        font-size: clamp(1.75rem, 6vw + 0.5rem, 2rem);
    }
    
    .section-title {
        font-size: clamp(1.5rem, 5vw + 0.5rem, 1.75rem);
    }
    
    .hero-description {
        font-size: clamp(0.95rem, 2.5vw + 0.5rem, 1.1rem);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }
    
    .steps-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }
    
    .stat-card {
        padding: 1.5rem 1.25rem;
    }
    
    .stat-card .stat-number {
        font-size: clamp(2rem, 6vw + 1rem, 2.5rem);
    }
    
    .feature-card,
    .use-case,
    .step {
        padding: 1.75rem 1.25rem;
    }
    
    .feature-icon {
        width: 60px;
        height: 60px;
        font-size: 2rem;
    }
    
    .step-icon {
        font-size: 3rem;
    }
    
    .use-case-icon {
        font-size: 3rem;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        padding: 14px 20px;
        font-size: 16px;
        min-height: 44px;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
    }
    
    .hero-stats {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 0.75rem;
        justify-content: center;
    }
    
    .stat {
        min-width: 100px;
        padding: 0.75rem 1rem;
        flex: 0 1 auto;
    }
    
    .stat-number {
        font-size: clamp(1.25rem, 4vw + 0.5rem, 1.5rem);
    }
}

/* Mobile Small (375px - 479px) - iPhone SE, petits Android */
@media (max-width: 479px) and (min-width: 375px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero {
        padding: 1.5rem 0 2.5rem;
    }
    
    .hero-title {
        font-size: clamp(1.625rem, 7vw + 0.5rem, 1.875rem);
        line-height: 1.2;
    }
    
    .section-title {
        font-size: clamp(1.375rem, 6vw + 0.5rem, 1.625rem);
    }
    
    .hero-description {
        font-size: clamp(0.9rem, 3vw + 0.5rem, 1rem);
        line-height: 1.6;
    }
    
    .section-description {
        font-size: clamp(0.875rem, 2.5vw + 0.5rem, 0.95rem);
        line-height: 1.6;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .steps-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .stat-card {
        padding: 1.5rem 1rem;
    }
    
    .stat-card .stat-number {
        font-size: clamp(1.875rem, 7vw + 1rem, 2.25rem);
    }
    
    .feature-card,
    .use-case,
    .step {
        padding: 1.5rem 1rem;
    }
    
    .feature-icon {
        width: 50px;
        height: 50px;
        font-size: 1.75rem;
    }
    
    .step-icon {
        font-size: 2.5rem;
    }
    
    .use-case-icon {
        font-size: 2.5rem;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        padding: 14px 18px;
        font-size: 16px;
        min-height: 44px;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .hero-stats {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 0.5rem;
        justify-content: center;
    }
    
    .stat {
        min-width: 90px;
        padding: 0.625rem 0.875rem;
        flex: 0 1 auto;
    }
    
    .stat-number {
        font-size: clamp(1.125rem, 4.5vw + 0.5rem, 1.375rem);
    }
    
    .section-header {
        margin-bottom: 2rem;
    }
    
    .section-badge {
        padding: 0.4rem 1.25rem;
        font-size: 0.8rem;
    }
}

/* Mobile Très Petit (320px - 374px) - Très petits téléphones */
@media (max-width: 374px) {
    .container {
        padding: 0 0.875rem;
    }
    
    .hero {
        padding: 1.25rem 0 2rem;
    }
    
    .hero-title {
        font-size: clamp(1.5rem, 8vw + 0.5rem, 1.75rem);
        line-height: 1.15;
    }
    
    .section-title {
        font-size: clamp(1.25rem, 7vw + 0.5rem, 1.5rem);
    }
    
    .hero-description {
        font-size: clamp(0.875rem, 3.5vw + 0.5rem, 0.95rem);
        line-height: 1.5;
    }
    
    .section-description {
        font-size: clamp(0.8rem, 3vw + 0.5rem, 0.9rem);
        line-height: 1.5;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 0.875rem;
    }
    
    .steps-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 0.875rem;
    }
    
    .stat-card {
        padding: 1.25rem 0.875rem;
    }
    
    .stat-card .stat-number {
        font-size: clamp(1.75rem, 8vw + 1rem, 2rem);
    }
    
    .feature-card,
    .use-case,
    .step {
        padding: 1.25rem 0.875rem;
    }
    
    .feature-icon {
        width: 45px;
        height: 45px;
        font-size: 1.5rem;
    }
    
    .step-icon {
        font-size: 2.25rem;
    }
    
    .use-case-icon {
        font-size: 2.25rem;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        padding: 12px 16px;
        font-size: 16px;
        min-height: 44px;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 0.625rem;
    }
    
    .hero-stats {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 0.5rem;
        justify-content: center;
    }
    
    .stat {
        min-width: 80px;
        padding: 0.5rem 0.75rem;
        flex: 0 1 auto;
    }
    
    .stat-number {
        font-size: clamp(1rem, 5vw + 0.5rem, 1.25rem);
    }
    
    .section-header {
        margin-bottom: 1.5rem;
    }
    
    .section-badge {
        padding: 0.35rem 1rem;
        font-size: 0.75rem;
    }
}

/* ========================================
   ORIENTATION - Portrait et Paysage
   ======================================== */

/* Tablettes en mode paysage */
@media (orientation: landscape) and (max-width: 1024px) and (min-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
    
    .hero-title {
        font-size: clamp(2rem, 4vw + 1rem, 2.5rem);
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .steps-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Téléphones en mode paysage */
@media (orientation: landscape) and (max-width: 767px) {
    .hero {
        padding: 1rem 0 2rem;
    }
    
    .hero-title {
        font-size: clamp(1.5rem, 5vw + 0.5rem, 1.75rem);
    }
    
    .hero-stats {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .stat {
        min-width: 80px;
        padding: 0.5rem 0.75rem;
    }
}

/* ========================================
   SAFE AREAS iOS - Notch et barre d'accueil
   ======================================== */

@supports (padding: env(safe-area-inset-top)) {
    body {
        padding-top: calc(110px + env(safe-area-inset-top));
    }
    
    @media (max-width: 768px) {
        body {
            padding-top: calc(140px + env(safe-area-inset-top));
        }
    }
    
    .navbar {
        padding-top: env(safe-area-inset-top);
    }
    
    .hero {
        padding-top: calc(2rem + env(safe-area-inset-top));
    }
    
    @media (max-width: 768px) {
        .hero {
            padding-top: calc(1.5rem + env(safe-area-inset-top));
        }
    }
    
    footer,
    .footer {
        padding-bottom: calc(1.5rem + env(safe-area-inset-bottom));
    }
    
    .btn-primary,
    .btn-secondary {
        margin-bottom: env(safe-area-inset-bottom);
    }
}

/* ========================================
   IMAGES RESPONSIVE - Pas de débordement
   ======================================== */

img,
picture,
video {
    max-width: 100%;
    height: auto;
    display: block;
}

.phone-frame,
.phone-mockup {
    max-width: 100%;
    width: 100%;
    height: auto;
}

@media (max-width: 768px) {
    .phone-frame {
        max-width: 280px;
        margin: 0 auto;
    }
}

@media (max-width: 480px) {
    .phone-frame {
        max-width: 250px;
    }
}

/* ========================================
   FORMULAIRES - Prévention zoom iOS
   ======================================== */

input[type="email"],
input[type="text"],
input[type="url"],
textarea,
select {
    font-size: 16px; /* Prévention zoom iOS */
    min-height: 44px; /* Touch target minimum */
    padding: 12px 16px;
    width: 100%;
    box-sizing: border-box;
}

@media (max-width: 480px) {
    input[type="email"],
    input[type="text"],
    input[type="url"],
    textarea,
    select {
        padding: 14px 16px;
    }
}

/* ========================================
   NAVIGATION MOBILE - Optimisations
   ======================================== */

@media (max-width: 768px) {
    .nav-links {
        gap: 0.5rem;
        padding: 0.5rem 0;
    }
    
    .nav-links a {
        font-size: 0.875rem;
        padding: 0.5rem 0.75rem;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .lang-switcher {
        gap: 0.375rem;
    }
    
    .lang-btn {
        min-width: 44px;
        min-height: 44px;
        font-size: 1.1rem;
        padding: 0.5rem;
    }
}

/* ========================================
   MODALES - Adaptation mobile/tablette
   ======================================== */

@media (max-width: 768px) {
    .modal-content {
        margin: 10px;
        padding: 1.5rem 1.25rem;
        max-width: calc(100% - 20px);
        max-height: calc(100vh - 20px);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }
}

@media (max-width: 480px) {
    .modal-content {
        margin: 5px;
        padding: 1.25rem 1rem;
        max-width: calc(100% - 10px);
        max-height: calc(100vh - 10px);
        border-radius: 16px;
    }
}

/* ========================================
   CONTAINERS - Largeurs adaptatives
   ======================================== */

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    box-sizing: border-box;
}

@media (max-width: 768px) {
    .container {
        padding: 0 1.25rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
}

@media (max-width: 375px) {
    .container {
        padding: 0 0.875rem;
    }
}

/* ========================================
   SECTIONS - Espacements adaptatifs
   ======================================== */

section {
    padding: clamp(2rem, 5vw + 1rem, 3.5rem) 0;
}

@media (max-width: 768px) {
    section {
        padding: clamp(1.5rem, 4vw + 1rem, 2.5rem) 0;
    }
}

@media (max-width: 480px) {
    section {
        padding: clamp(1.25rem, 3vw + 1rem, 2rem) 0;
    }
}

/* ========================================
   GAPS ET ESPACEMENTS - Adaptatifs
   ======================================== */

.features-grid,
.steps-grid,
.testimonials-grid,
.use-cases-grid,
.stats-grid {
    gap: clamp(1rem, 2vw + 0.5rem, 2rem);
}

@media (max-width: 768px) {
    .features-grid,
    .steps-grid,
    .testimonials-grid,
    .use-cases-grid,
    .stats-grid {
        gap: clamp(0.875rem, 1.5vw + 0.5rem, 1.5rem);
    }
}

@media (max-width: 480px) {
    .features-grid,
    .steps-grid,
    .testimonials-grid,
    .use-cases-grid,
    .stats-grid {
        gap: clamp(0.75rem, 1vw + 0.5rem, 1rem);
    }
}

/* ========================================
   OVERFLOW - Prévention débordement horizontal
   ======================================== */

html,
body {
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
}

* {
    box-sizing: border-box;
}

/* ========================================
   TOUCH TARGETS - Minimum 44x44px (iOS/Android)
   ======================================== */

button,
.btn,
a[role="button"],
.lang-btn,
.nav-links a {
    min-height: 44px;
    min-width: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

@media (max-width: 480px) {
    button,
    .btn,
    a[role="button"] {
        min-height: 48px; /* Légèrement plus grand sur petits écrans */
    }
}

/* ========================================
   OPTIMISATIONS SPÉCIFIQUES iPad
   Tablettes 768px - 1024px
   ======================================== */

/* iPad Portrait (768px - 1024px) */
@media (min-width: 768px) and (max-width: 1024px) {
    /* Containers optimisés */
    .container {
        padding: 0 2rem;
        max-width: 900px;
        width: 100%;
        box-sizing: border-box;
        overflow-x: hidden;
    }
    
    /* Hero Section - Layout optimisé iPad */
    .hero {
        padding: 2.5rem 0 3.5rem;
        overflow-x: hidden;
        width: 100%;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 2.5rem;
        text-align: center;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
        overflow-x: hidden;
    }
    
    .hero-title {
        font-size: clamp(2.25rem, 5vw + 1rem, 2.75rem);
        line-height: 1.2;
        margin-bottom: 1.5rem;
    }
    
    .hero-description {
        font-size: clamp(1.1rem, 2.5vw + 0.5rem, 1.2rem);
        line-height: 1.7;
        max-width: 700px;
        margin: 0 auto 2rem;
        overflow-wrap: break-word !important;
        word-wrap: break-word !important;
        word-break: break-word !important;
        hyphens: auto;
        padding: 0 1rem;
        width: 100%;
        box-sizing: border-box;
    }
    
    .hero-title {
        overflow-wrap: break-word !important;
        word-wrap: break-word !important;
        word-break: break-word !important;
        padding: 0 1rem;
        width: 100%;
        box-sizing: border-box;
    }
    
    .hero-text {
        width: 100%;
        max-width: 100%;
        padding: 0 1rem;
        box-sizing: border-box;
        overflow: hidden;
    }
    
    .hero-buttons {
        justify-content: center;
        gap: 1rem;
        flex-wrap: wrap;
    }
    
    .btn-primary,
    .btn-secondary {
        min-width: 200px;
        padding: 16px 32px;
        font-size: 16px;
    }
    
    .hero-stats {
        justify-content: center;
        gap: 1.5rem;
        flex-wrap: wrap;
    }
    
    .stat {
        min-width: 140px;
        padding: 1rem 1.5rem;
    }
    
    .stat-number {
        font-size: clamp(1.75rem, 4vw + 0.5rem, 2rem);
    }
    
    /* Navigation optimisée iPad */
    .nav-links {
        gap: 1.25rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .nav-links a {
        font-size: 0.95rem;
        padding: 0.5rem 1rem;
    }
    
    .lang-switcher {
        gap: 0.5rem;
    }
    
    .lang-btn {
        min-width: 48px;
        min-height: 48px;
        font-size: 1.2rem;
    }
    
    /* Features Grid - 2 colonnes sur iPad */
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
    
    .feature-card {
        padding: 2rem 1.75rem;
    }
    
    .feature-icon {
        width: 70px;
        height: 70px;
        font-size: 2.25rem;
    }
    
    /* Steps Grid - 3 colonnes sur iPad */
    .steps-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.75rem;
    }
    
    .step {
        padding: 2rem 1.5rem;
    }
    
    .step-icon {
        font-size: 3.5rem;
    }
    
    /* Stats Grid - 2 colonnes sur iPad */
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
    
    .stat-card {
        padding: 2.5rem 2rem;
    }
    
    .stat-card .stat-number {
        font-size: clamp(3rem, 6vw + 1rem, 3.5rem);
    }
    
    /* Use Cases - 2 colonnes sur iPad */
    .use-cases-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
    
    .use-case {
        padding: 2rem 1.75rem;
    }
    
    .use-case-icon {
        font-size: 3.5rem;
    }
    
    /* Testimonials - 2 colonnes sur iPad */
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
    
    /* FAQ - 2 colonnes sur iPad */
    .faq-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.75rem;
    }
    
    .faq-item {
        padding: 2rem 1.75rem;
    }
    
    /* Section Headers */
    .section-header {
        margin-bottom: 2.5rem;
    }
    
    .section-title {
        font-size: clamp(2rem, 4.5vw + 0.5rem, 2.25rem);
        margin-bottom: 1.25rem;
    }
    
    .section-description {
        font-size: clamp(1rem, 2vw + 0.5rem, 1.1rem);
        max-width: 750px;
    }
    
    /* Phone Mockup - Taille optimisée iPad */
    .phone-frame,
    .phone-mockup {
        max-width: 350px;
        margin: 0 auto;
    }
    
    /* Social Proof - Optimisé iPad */
    .social-proof-container {
        max-width: 450px;
        padding: 1.5rem 2rem;
    }
    
    .social-proof-number {
        font-size: clamp(2rem, 4vw + 1rem, 2.5rem);
    }
    
    /* Countdown Timer - Optimisé iPad */
    #countdown-container {
        max-width: 600px;
        margin: 0 auto;
    }
    
    /* Footer - Layout optimisé iPad */
    .footer-content {
        grid-template-columns: repeat(3, 1fr);
        gap: 2.5rem;
    }
    
    /* Espacements sections */
    section {
        padding: clamp(2.5rem, 5vw + 1rem, 3rem) 0;
    }
}

/* iPad Paysage (1024px - 1366px) */
@media (min-width: 1024px) and (max-width: 1366px) and (orientation: landscape) {
    .container {
        max-width: 1100px;
        padding: 0 2.5rem;
    }
    
    .hero-content {
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
        text-align: left;
    }
    
    .hero-text {
        order: 1;
    }
    
    .hero-image {
        order: 2;
    }
    
    .hero-buttons {
        justify-content: flex-start;
    }
    
    .hero-stats {
        justify-content: flex-start;
    }
    
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 2rem;
    }
    
    .steps-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .use-cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .testimonials-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* iPad Pro 12.9" (1024px - 1366px portrait) */
@media (min-width: 1024px) and (max-width: 1366px) and (orientation: portrait) {
    .container {
        max-width: 1000px;
        padding: 0 2rem;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2.5rem;
    }
    
    .steps-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 2rem;
    }
}