/* ACUSOLO - Styles CSS Personnalisés */

/* Variables CSS pour une cohérence des couleurs - Harmonisées avec le logo */
:root {
    --acusolo-blue: #3B82F6;
    --acusolo-gold: #F59E0B;
    --acusolo-green: #10B981;
    --acusolo-navy: #1E293B;
    --acusolo-primary: #2563EB;
    --acusolo-light-blue: #EFF6FF;
    --acusolo-light-gold: #FEF3C7;
    --acusolo-light-green: #ECFDF5;
    --gradient-primary: linear-gradient(135deg, var(--acusolo-navy), var(--acusolo-primary));
    --gradient-gold: linear-gradient(135deg, var(--acusolo-gold), #FBBF24);
    --gradient-hero: linear-gradient(135deg, rgba(37, 99, 235, 0.15), rgba(245, 158, 11, 0.15));
    --shadow-soft: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-medium: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-large: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset et configurations de base */
* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #374151;
    background-color: #ffffff;
    overflow-x: hidden;
}

/* Typography améliorée */
.font-playfair {
    font-family: 'Playfair Display', Georgia, serif;
    letter-spacing: -0.025em;
}

h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    font-weight: 600;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3.5rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
}

/* Navigation améliorée */
header {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-smooth);
}

header.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-medium);
}

nav a {
    position: relative;
    overflow: hidden;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-gold);
    transition: width 0.3s ease;
}

nav a:hover::after {
    width: 100%;
}

/* Boutons améliorés */
.btn-primary {
    background: var(--gradient-gold);
    border: none;
    padding: 0.875rem 2rem;
    border-radius: 50px;
    color: white;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover::before {
    left: 100%;
}

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

.btn-secondary {
    background: transparent;
    border: 2px solid var(--acusolo-navy);
    padding: 0.875rem 2rem;
    border-radius: 50px;
    color: var(--acusolo-navy);
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}

.btn-secondary:hover {
    background: var(--acusolo-navy);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

/* Section Hero améliorée */
#accueil {
    background: 
        radial-gradient(circle at 20% 50%, rgba(30, 64, 175, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(217, 119, 6, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(5, 150, 105, 0.1) 0%, transparent 50%),
        linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

#accueil::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(30, 64, 175, 0.1) 0%, transparent 25%),
        radial-gradient(circle at 75% 75%, rgba(217, 119, 6, 0.1) 0%, transparent 25%);
    animation: float 20s ease-in-out infinite;
    z-index: 1;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    25% { transform: translateY(-20px) rotate(1deg); }
    50% { transform: translateY(-10px) rotate(-1deg); }
    75% { transform: translateY(-30px) rotate(0.5deg); }
}

/* Cards et conteneurs améliorés */
.card {
    background: white;
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: var(--shadow-soft);
    transition: var(--transition-smooth);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient-gold);
    transform: translateX(-100%);
    transition: transform 0.5s ease;
}

.card:hover::before {
    transform: translateX(0);
}

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

/* Sections avec arrière-plans dégradés */
.section-alt {
    background: 
        linear-gradient(135deg, rgba(248, 250, 252, 0.8) 0%, rgba(241, 245, 249, 0.8) 100%),
        radial-gradient(circle at 30% 70%, rgba(30, 64, 175, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 70% 30%, rgba(217, 119, 6, 0.05) 0%, transparent 50%);
}

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

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

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Classes d'animation */
.animate-slide-up {
    animation: slideInUp 0.8s ease-out;
}

.animate-slide-left {
    animation: slideInLeft 0.8s ease-out;
}

.animate-slide-right {
    animation: slideInRight 0.8s ease-out;
}

.animate-fade-in {
    animation: fadeIn 0.8s ease-out;
}

/* Intersection Observer pour animations */
.scroll-reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Amélioration des icônes */
.icon-container {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: var(--transition-smooth);
}

.icon-container::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(217, 119, 6, 0.2) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(-50%, -50%) scale(0);
    transition: transform 0.3s ease;
    z-index: -1;
}

.icon-container:hover::after {
    transform: translate(-50%, -50%) scale(1);
}

/* Formulaires améliorés */
.form-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.form-input {
    width: 100%;
    padding: 1rem 1.25rem;
    border: 2px solid #e5e7eb;
    border-radius: 0.75rem;
    font-size: 1rem;
    transition: var(--transition-smooth);
    background: white;
}

.form-input:focus {
    outline: none;
    border-color: var(--acusolo-gold);
    box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.1);
    transform: translateY(-2px);
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--acusolo-navy);
}

/* Testimonials améliorés */
.testimonial-card {
    background: white;
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: var(--shadow-soft);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: 20px;
    font-size: 4rem;
    color: var(--acusolo-gold);
    font-family: 'Playfair Display', serif;
    opacity: 0.3;
    z-index: 1;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-large);
}

/* Statistiques animées */
.stat-number {
    font-weight: 700;
    color: var(--acusolo-primary);
    transition: var(--transition-smooth);
}

.stat-card:hover .stat-number {
    transform: scale(1.1);
}

/* FAQ améliorée */
.faq-item {
    background: white;
    border-radius: 0.75rem;
    margin-bottom: 1rem;
    border: 1px solid rgba(0, 0, 0, 0.05);
    overflow: hidden;
    transition: var(--transition-smooth);
}

.faq-item:hover {
    box-shadow: var(--shadow-soft);
}

.faq-question {
    padding: 1.5rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: none;
    background: transparent;
    width: 100%;
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question:hover {
    background: rgba(217, 119, 6, 0.05);
}

.faq-answer {
    padding: 0 1.5rem 1.5rem;
    color: #6b7280;
    line-height: 1.6;
    display: none;
}

.faq-answer.active {
    display: block;
    animation: slideInUp 0.3s ease-out;
}

.faq-icon {
    transition: transform 0.3s ease;
}

.faq-icon.rotated {
    transform: rotate(180deg);
}

/* Tarifs avec effets */
.pricing-card {
    background: white;
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: var(--shadow-soft);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    border: 2px solid transparent;
}

.pricing-card.featured {
    border-color: var(--acusolo-gold);
    transform: scale(1.05);
    box-shadow: var(--shadow-large);
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-large);
}

.pricing-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(217, 119, 6, 0.1), transparent);
    transition: left 0.5s ease;
}

.pricing-card:hover::after {
    left: 100%;
}

/* Footer amélioré */
footer {
    background: var(--gradient-primary);
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(255, 255, 255, 0.1) 0%, transparent 25%),
        radial-gradient(circle at 75% 75%, rgba(217, 119, 6, 0.1) 0%, transparent 25%);
    z-index: 1;
}

footer > * {
    position: relative;
    z-index: 2;
}

/* Boutons flottants */
.floating-btn {
    position: fixed;
    z-index: 1000;
    border-radius: 50%;
    box-shadow: var(--shadow-large);
    transition: var(--transition-smooth);
}

.floating-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

#back-to-top {
    bottom: 1.5rem;
    left: 1.5rem;
    background: var(--acusolo-primary);
    color: white;
    width: 3rem;
    height: 3rem;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-smooth);
}

#back-to-top.visible {
    opacity: 1;
    pointer-events: all;
}

.whatsapp-btn {
    bottom: 1.5rem;
    right: 1.5rem;
    background: #25d366;
    color: white;
    width: 3.5rem;
    height: 3.5rem;
}

/* Responsive Design amélioré */
@media (max-width: 768px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .grid-responsive {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

@media (max-width: 640px) {
    section {
        padding: 3rem 0;
    }
    
    .card {
        padding: 1.5rem;
    }
    
    .testimonial-card {
        padding: 1.5rem;
    }
    
    .pricing-card {
        padding: 1.5rem;
    }
}

/* Accessibilité améliorée */
@media (prefers-reduced-motion: reduce) {
    *, ::before, ::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus visible pour l'accessibilité */
button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 2px solid var(--acusolo-gold);
    outline-offset: 2px;
}

/* Styles pour les éléments de chargement */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* Personnalisation de la scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: var(--acusolo-gold);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #b45309;
}

/* Styles pour l'impression */
@media print {
    header, footer, .floating-btn {
        display: none !important;
    }
    
    body {
        color: black;
        background: white;
    }
    
    .card {
        border: 1px solid #ccc;
        box-shadow: none;
    }
}