/* ==========================================================================
   DESIGN SYSTEM & VARIABLES - HIGH-TECH & LUXE
   ========================================================================== */
:root {
    /* Palette de couleurs de luxe high-tech */
    --color-bg-darkest: #070a13;    /* Fond noir spatial profond */
    --color-bg-dark: #0f172a;       /* Bleu ardoise très sombre */
    --color-bg-card: rgba(30, 41, 59, 0.7); /* Fond carte semi-transparent */
    --color-primary-dark: #1a2b4c;  /* Bleu foncé principal */
    --color-primary-medium: #2c4a7c;/* Bleu moyen */
    --color-accent: #f59e0b;        /* Orange/Ambre chaud */
    --color-accent-glow: rgba(245, 158, 11, 0.4);
    --color-accent-hover: #fbbf24;  /* Ambre plus clair et brillant */
    --color-success: #10b981;       /* Vert validation */
    --color-success-glow: rgba(16, 185, 129, 0.3);
    --color-white: #ffffff;
    --color-light-bg: #0d1527;      /* Fond gris-bleu sombre high-tech */
    --color-text-dark: #f8fafc;     /* Texte principal (clair sur fond sombre) */
    --color-text-light: #94a3b8;    /* Texte secondaire argenté */
    
    /* Variables de bordure et ombres */
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    --border-radius-full: 9999px;
    
    --border-glass: 1px solid rgba(255, 255, 255, 0.08);
    --border-glass-glow: 1px solid rgba(245, 158, 11, 0.3);
    
    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 12px 36px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.5);
    --shadow-glow-blue: 0 0 40px rgba(44, 74, 124, 0.25);
    --shadow-glow-accent: 0 0 30px rgba(245, 158, 11, 0.25);
    
    /* Polices et transitions */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   RESET & STYLES GENERAUX
   ========================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: auto; /* Géré par JS */
    font-size: 16px;
    background-color: var(--color-bg-darkest);
}

body {
    font-family: var(--font-family);
    background-color: var(--color-bg-darkest);
    color: var(--color-text-dark);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Barre de défilement stylisée high-tech */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--color-bg-darkest);
}
::-webkit-scrollbar-thumb {
    background: #1e293b;
    border-radius: var(--border-radius-full);
    border: 2px solid var(--color-bg-darkest);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent);
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

button, input, textarea {
    font-family: inherit;
    border: none;
    outline: none;
}

ul {
    list-style: none;
}

/* Utilitaires de conteneur */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-padding {
    padding: 100px 0;
}

.bg-light {
    background-color: var(--color-light-bg);
    background-image: radial-gradient(circle at 50% 50%, rgba(44, 74, 124, 0.15) 0%, transparent 80%);
}

.text-center {
    text-align: center;
}

.hidden {
    display: none !important;
}

/* Lueur d'ambiance décorative */
.ambient-glow {
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.08) 0%, transparent 70%);
    pointer-events: none;
    z-index: 1;
    border-radius: 50%;
    filter: blur(60px);
}

/* Badges premium */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 18px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    border-radius: var(--border-radius-full);
    margin-bottom: 20px;
    background: rgba(255, 255, 255, 0.03);
    border: var(--border-glass);
    color: var(--color-white);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

/* Boutons de luxe */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    z-index: 1;
    transition: all var(--transition-normal);
}

.btn-icon {
    margin-right: 8px;
    font-size: 1.1rem;
}

/* Bouton Accent (Orange) */
.btn-accent {
    background: linear-gradient(135deg, var(--color-accent) 0%, #ea580c 100%);
    color: var(--color-bg-darkest);
    box-shadow: var(--shadow-glow-accent);
}

.btn-accent::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: all 0.6s ease;
    z-index: -1;
}

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

.btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 35px rgba(245, 158, 11, 0.45);
}

/* Bouton Primaire (Dark/Glass) */
.btn-primary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-white);
    border: var(--border-glass);
    backdrop-filter: blur(10px);
}

.btn-primary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Bouton Outline Blanc */
.btn-outline-white {
    background-color: transparent;
    color: var(--color-white);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-outline-white:hover {
    background-color: var(--color-white);
    color: var(--color-bg-darkest);
    border-color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(255,255,255,0.1);
}

.btn-rounded {
    border-radius: var(--border-radius-full);
}

.btn-full {
    display: flex;
    width: 100%;
}

/* En-tête de section */
.section-header {
    margin-bottom: 65px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -1px;
    background: linear-gradient(135deg, var(--color-white) 30%, var(--color-text-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 20px;
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--color-text-light);
    max-width: 580px;
    margin: 0 auto;
    letter-spacing: 0.5px;
    font-weight: 400;
}

/* ==========================================================================
   HEADER STICKY - GLASSMORPHISM LUXE
   ========================================================================== */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(7, 10, 19, 0.7);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-normal);
}

.main-header.scrolled {
    padding: 5px 0;
    background-color: rgba(7, 10, 19, 0.85);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    height: 42px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.1));
}

.logo-text {
    font-size: 1.3rem;
    font-weight: 800;
    letter-spacing: 1px;
    color: var(--color-white);
}

.logo-suffix {
    color: var(--color-accent);
    text-shadow: 0 0 15px var(--color-accent-glow);
}

/* Navigation Bureau */
.nav-desktop {
    display: none;
}

.nav-list {
    display: flex;
    gap: 36px;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-light);
    letter-spacing: 0.5px;
    position: relative;
    padding: 8px 0;
    transition: color var(--transition-fast);
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    box-shadow: 0 0 8px var(--color-accent);
    transition: width var(--transition-fast);
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

.header-cta {
    display: none;
}

.header-devis-btn {
    padding: 10px 24px;
    font-size: 0.85rem;
}

/* Burger Mobile */
.burger-menu-btn {
    background: transparent;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 6px;
    z-index: 1010;
    padding: 8px;
}

.burger-bar {
    width: 24px;
    height: 2px;
    background-color: var(--color-white);
    border-radius: 2px;
    transition: all var(--transition-normal);
}

/* Animation burger actif */
.burger-menu-btn.active .burger-bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.burger-menu-btn.active .burger-bar:nth-child(2) {
    opacity: 0;
}

.burger-menu-btn.active .burger-bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* Navigation Mobile */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: rgba(7, 10, 19, 0.98);
    backdrop-filter: blur(20px);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-nav-list {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 28px;
}

.mobile-nav-link {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-light);
    letter-spacing: 1px;
}

.mobile-nav-link:hover, .mobile-nav-link.active {
    color: var(--color-white);
    text-shadow: 0 0 15px rgba(255,255,255,0.3);
}

.mobile-cta-btn {
    font-size: 1rem;
    padding: 14px 36px;
    margin-top: 20px;
}

/* ==========================================================================
   HERO SECTION - SPACIAL HIGH-TECH
   ========================================================================== */
.hero-section {
    position: relative;
    background: radial-gradient(circle at 50% -20%, #1e293b 0%, var(--color-bg-darkest) 70%);
    padding: 160px 0 100px 0;
    color: var(--color-white);
    overflow: hidden;
}

/* Fond de grille high-tech */
.hero-bg-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(245, 158, 11, 0.05) 0%, transparent 35%),
        radial-gradient(circle at 80% 70%, rgba(44, 74, 124, 0.25) 0%, transparent 45%),
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 100% 100%, 100% 100%, 40px 40px, 40px 40px;
    z-index: 1;
}

.hero-container {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    text-align: center;
}

.hero-badge {
    background-color: rgba(245, 158, 11, 0.08);
    color: var(--color-accent);
    border: 1px solid rgba(245, 158, 11, 0.2);
    box-shadow: 0 0 15px rgba(245, 158, 11, 0.1);
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -1.5px;
    margin-bottom: 24px;
}

.hero-title .highlight-text {
    background: linear-gradient(135deg, var(--color-accent) 0%, #ea580c 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.05rem;
    color: var(--color-text-light);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: 16px;
    justify-content: center;
}

/* Illustration Ecran d'ordinateur de luxe */
.hero-visual {
    width: 100%;
    max-width: 560px;
    margin: 0 auto;
    position: relative;
}

/* Effet halo lumineux derrière l'ordinateur */
.hero-visual::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 80%;
    height: 80%;
    background: radial-gradient(circle, rgba(44, 74, 124, 0.3) 0%, transparent 60%);
    transform: translate(-50%, -50%);
    z-index: 0;
    pointer-events: none;
    filter: blur(40px);
}

.mockup-computer {
    position: relative;
    z-index: 1;
    background-color: #1e293b;
    border-radius: 12px 12px 0 0;
    box-shadow: var(--shadow-lg), 0 0 30px rgba(0,0,0,0.4);
    border: 1px solid rgba(255, 255, 255, 0.1);
    overflow: hidden;
}

.mockup-header {
    height: 38px;
    background-color: #0f172a;
    display: flex;
    align-items: center;
    padding: 0 16px;
    gap: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.mockup-buttons {
    display: flex;
    gap: 8px;
}

.mockup-buttons span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.dot-red { background-color: rgba(239, 68, 68, 0.6); }
.dot-yellow { background-color: rgba(245, 158, 11, 0.6); }
.dot-green { background-color: rgba(16, 185, 129, 0.6); }

.mockup-search-bar {
    flex-grow: 1;
    height: 22px;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 6px;
    font-size: 0.7rem;
    color: var(--color-text-light);
    display: flex;
    align-items: center;
    padding-left: 14px;
    letter-spacing: 0.5px;
}

.mockup-screen-content {
    background-color: #07090e;
    height: 280px;
    padding: 20px;
    position: relative;
}

.mockup-base {
    position: relative;
    z-index: 2;
    height: 16px;
    background: linear-gradient(180deg, #334155 0%, #0f172a 100%);
    border-radius: 0 0 12px 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 12px 30px rgba(0,0,0,0.5);
}

/* Simulation de site web */
.screen-layout {
    display: flex;
    flex-direction: column;
    gap: 14px;
    height: 100%;
}

.block-step {
    background-color: rgba(255, 255, 255, 0.03);
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    opacity: 0;
}

.screen-navbar {
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 12px;
}

.screen-logo {
    width: 44px;
    height: 8px;
    background-color: var(--color-accent);
    border-radius: 4px;
    box-shadow: 0 0 8px var(--color-accent);
}

.screen-links {
    display: flex;
    gap: 10px;
}

.screen-links span {
    width: 22px;
    height: 5px;
    background-color: rgba(255, 255, 255, 0.15);
    border-radius: 2px;
}

.screen-hero-area {
    display: flex;
    gap: 14px;
    flex-grow: 1;
}

.screen-hero-text {
    flex: 3;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.line-lg {
    width: 85%;
    height: 6px;
    background-color: var(--color-white);
    border-radius: 3px;
}

.line-sm {
    width: 55%;
    height: 4px;
    background-color: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
}

.screen-hero-img {
    flex: 2;
    background-color: rgba(44, 74, 124, 0.2);
    border: 1px dashed rgba(255, 255, 255, 0.1);
}

.screen-grid-area {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    height: 55px;
}

.screen-card {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px dashed rgba(255, 255, 255, 0.1);
}

.screen-footer-area {
    height: 22px;
    background-color: rgba(255, 255, 255, 0.02);
}

/* Animations CSS complexes */
@keyframes buildBlockTech {
    0% {
        opacity: 0;
        transform: translateY(12px) scale(0.97);
        filter: blur(4px);
    }
    8% {
        opacity: 1;
        transform: translateY(0) scale(1);
        filter: blur(0);
        background-color: rgba(255, 255, 255, 0.08);
        border-color: rgba(245, 158, 11, 0.3);
    }
    15% {
        background-color: rgba(255, 255, 255, 0.03);
        border-color: rgba(255, 255, 255, 0.05);
    }
    90% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
    100% {
        opacity: 0;
        transform: translateY(0) scale(1);
    }
}

.animate-screen .screen-navbar {
    animation: buildBlockTech 6.5s infinite;
    animation-delay: 0s;
}

.animate-screen .screen-hero-text {
    animation: buildBlockTech 6.5s infinite;
    animation-delay: 0.8s;
}

.animate-screen .screen-hero-img {
    animation: buildBlockTech 6.5s infinite;
    animation-delay: 1.6s;
}

.animate-screen .screen-card:nth-child(1) {
    animation: buildBlockTech 6.5s infinite;
    animation-delay: 2.4s;
}
.animate-screen .screen-card:nth-child(2) {
    animation: buildBlockTech 6.5s infinite;
    animation-delay: 2.7s;
}
.animate-screen .screen-card:nth-child(3) {
    animation: buildBlockTech 6.5s infinite;
    animation-delay: 3s;
}

.animate-screen .screen-footer-area {
    animation: buildBlockTech 6.5s infinite;
    animation-delay: 3.8s;
}

/* ==========================================================================
   SECTION SERVICES - CARTES GLASSMORPHIC EPUREES
   ========================================================================== */
.services-section {
    background-color: var(--color-bg-darkest);
    position: relative;
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    position: relative;
    z-index: 2;
}

.service-card {
    background: rgba(30, 41, 59, 0.3);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 45px 35px;
    border-radius: var(--border-radius-md);
    border: var(--border-glass);
    transition: all var(--transition-normal);
}

.service-card:hover {
    transform: translateY(-8px);
    background: rgba(30, 41, 59, 0.45);
    border-color: rgba(245, 158, 11, 0.4);
    box-shadow: var(--shadow-glow-accent), var(--shadow-md);
}

.service-icon-box {
    width: 64px;
    height: 64px;
    background: rgba(245, 158, 11, 0.06);
    color: var(--color-accent);
    border: 1px solid rgba(245, 158, 11, 0.2);
    border-radius: var(--border-radius-sm); /* Forme carrée arrondie moderne */
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    margin-bottom: 28px;
    transition: all var(--transition-normal);
}

.service-card:hover .service-icon-box {
    background: var(--color-accent);
    color: var(--color-bg-darkest);
    border-color: var(--color-accent);
    transform: scale(1.05) rotate(5deg);
    box-shadow: 0 0 15px var(--color-accent-glow);
}

.service-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 14px;
    letter-spacing: 0.5px;
}

.service-desc {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ==========================================================================
   SECTION TARIFS - GRILLES DE PRIX HIGH-TECH
   ========================================================================== */
.tarifs-section {
    position: relative;
    background-color: var(--color-bg-darkest);
}

.tarifs-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 35px;
    align-items: flex-start;
    position: relative;
    z-index: 2;
}

.tarif-card {
    background: rgba(30, 41, 59, 0.25);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: var(--border-radius-md);
    padding: 50px 35px;
    border: var(--border-glass);
    position: relative;
    transition: all var(--transition-normal);
}

.tarif-card:hover {
    transform: translateY(-8px);
    background: rgba(30, 41, 59, 0.4);
    box-shadow: var(--shadow-md);
}

/* Offre Business vedette */
.tarif-card.tarif-featured {
    background: rgba(30, 41, 59, 0.45);
    border: 1px solid rgba(245, 158, 11, 0.5);
    box-shadow: var(--shadow-glow-accent), var(--shadow-md);
}

.tarif-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: linear-gradient(135deg, var(--color-accent) 0%, #ea580c 100%);
    color: var(--color-bg-darkest);
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 1px;
    padding: 5px 14px;
    border-radius: var(--border-radius-full);
    text-transform: uppercase;
    box-shadow: 0 0 10px rgba(245, 158, 11, 0.3);
}

.tarif-header {
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 28px;
    margin-bottom: 28px;
}

.tarif-name {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--color-white);
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}

.tarif-price-box {
    display: flex;
    flex-direction: column;
    margin-bottom: 8px;
}

.tarif-price {
    font-size: 3rem;
    font-weight: 800;
    color: var(--color-white);
    line-height: 1;
    letter-spacing: -1px;
}

.tarif-period {
    font-size: 0.8rem;
    color: var(--color-text-light);
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-top: 4px;
}

.tarif-recurring {
    font-size: 0.95rem;
    color: var(--color-accent);
    font-weight: 600;
    letter-spacing: 0.5px;
}

.tarif-features-list {
    margin-bottom: 35px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.tarif-features-list li {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    gap: 14px;
}

.feature-check {
    color: var(--color-success);
    font-size: 0.95rem;
    text-shadow: 0 0 8px rgba(16, 185, 129, 0.4);
}

/* ==========================================================================
   SECTION REALISATIONS - GALERIE FUTURISTE
   ========================================================================== */
.realisations-section {
    background-color: var(--color-bg-darkest);
}

.realisations-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 35px;
}

.portfolio-card {
    background: rgba(30, 41, 59, 0.2);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    border: var(--border-glass);
    transition: all var(--transition-normal);
}

.portfolio-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: var(--shadow-lg), var(--shadow-glow-blue);
}

.portfolio-img-box {
    position: relative;
    height: 240px;
    overflow: hidden;
    background-color: #07090f;
}

.portfolio-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top;
    transition: transform var(--transition-slow);
}

.portfolio-card:hover .portfolio-img {
    transform: scale(1.03);
}

/* Overlay Glassmorphism ultra-clean */
.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(7, 10, 19, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.portfolio-card:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-link-btn {
    padding: 12px 28px;
    font-size: 0.85rem;
}

.portfolio-info {
    padding: 28px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.portfolio-tag {
    display: inline-block;
    padding: 5px 14px;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    border-radius: var(--border-radius-full);
    margin-bottom: 14px;
}

.badge-vitrine {
    background-color: rgba(44, 74, 124, 0.25);
    color: #93c5fd;
    border: 1px solid rgba(147, 197, 253, 0.2);
}

.badge-refonte {
    background-color: rgba(245, 158, 11, 0.15);
    color: var(--color-accent-hover);
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.portfolio-client {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 6px;
    letter-spacing: 0.5px;
}

.portfolio-sector {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

/* ==========================================================================
   SECTION TEMOIGNAGES - LUXUEUSE & RAFINEE
   ========================================================================== */
.testimonials-section {
    background-color: var(--color-bg-darkest);
    position: relative;
    overflow: hidden;
}

.testimonials-quotes-watermark {
    position: absolute;
    top: -50px;
    left: 10px;
    font-size: 20rem;
    line-height: 1;
    font-family: serif;
    color: rgba(255, 255, 255, 0.02);
    pointer-events: none;
    z-index: 1;
}

.testimonials-container {
    position: relative;
    z-index: 2;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

.testimonial-card {
    background: rgba(30, 41, 59, 0.2);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 45px 35px;
    border-radius: var(--border-radius-md);
    border: var(--border-glass);
    display: flex;
    flex-direction: column;
    transition: all var(--transition-normal);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.15);
    background: rgba(30, 41, 59, 0.3);
}

.testimonial-rating {
    color: var(--color-accent);
    margin-bottom: 24px;
    font-size: 0.85rem;
    letter-spacing: 2px;
}

.testimonial-text {
    font-size: 0.95rem;
    font-style: italic;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 30px;
    flex-grow: 1;
    line-height: 1.7;
}

.testimonial-client-info {
    display: flex;
    align-items: center;
    gap: 16px;
}

.avatar-placeholder {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--color-accent);
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.client-name {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-white);
}

.client-role {
    font-size: 0.8rem;
    color: var(--color-text-light);
}

/* ==========================================================================
   SECTION PROCESSUS - LIGNE ENERGETIQUE HIGH-TECH
   ========================================================================== */
.processus-section {
    background-color: var(--color-bg-darkest);
}

.processus-timeline {
    display: grid;
    grid-template-columns: 1fr;
    gap: 45px;
    position: relative;
}

.processus-step {
    text-align: center;
    position: relative;
    z-index: 2;
}

.step-num-box {
    position: relative;
    width: 84px;
    height: 84px;
    margin: 0 auto 24px auto;
}

.step-num {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--color-accent) 0%, #ea580c 100%);
    color: var(--color-bg-darkest);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 0.8rem;
    box-shadow: 0 0 10px var(--color-accent-glow);
    z-index: 3;
}

.step-icon {
    width: 100%;
    height: 100%;
    background: rgba(30, 41, 59, 0.3);
    backdrop-filter: blur(12px);
    color: var(--color-text-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all var(--transition-normal);
}

.processus-step:hover .step-icon {
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: rotate(5deg) scale(1.05);
    box-shadow: var(--shadow-glow-accent);
}

.step-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 10px;
    letter-spacing: 0.5px;
}

.step-desc {
    font-size: 0.9rem;
    color: var(--color-text-light);
    max-width: 240px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ==========================================================================
   SECTION FAQ ACCORDEON - FUTURISTE EPUREE
   ========================================================================== */
.faq-section {
    background-color: var(--color-bg-darkest);
}

.faq-accordion {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: rgba(30, 41, 59, 0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--border-radius-md);
    border: var(--border-glass);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.faq-item:hover {
    border-color: rgba(255, 255, 255, 0.15);
    background: rgba(30, 41, 59, 0.25);
}

.faq-question {
    width: 100%;
    padding: 22px 28px;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    text-align: left;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-white);
    transition: all var(--transition-fast);
}

.faq-question:hover {
    color: var(--color-accent-hover);
}

.faq-icon {
    font-size: 0.9rem;
    color: var(--color-text-light);
    transition: transform var(--transition-normal);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
    color: var(--color-accent);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal) cubic-bezier(0, 1, 0, 1);
    background-color: rgba(7, 10, 19, 0.3);
}

.faq-answer p {
    padding: 0 28px 24px 28px;
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ==========================================================================
   SECTION CONTACT - GLASS & HIGH-TECH INPUTS
   ========================================================================== */
.contact-section {
    background: radial-gradient(circle at 50% 120%, #1e293b 0%, var(--color-bg-darkest) 75%);
    color: var(--color-white);
    position: relative;
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 60px;
    position: relative;
    z-index: 2;
}

/* Formulaire */
.contact-form-box {
    background: rgba(30, 41, 59, 0.25);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 50px 40px;
    border-radius: var(--border-radius-lg);
    border: var(--border-glass);
    color: var(--color-white);
}

.contact-form-title {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--color-white);
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

.contact-form-subtitle {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-bottom: 35px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.form-label {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: var(--color-white);
}

/* Inputs design minimal luxueux */
.form-control {
    width: 100%;
    padding: 14px 18px;
    font-size: 0.95rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--border-radius-sm);
    color: var(--color-white);
    transition: all var(--transition-fast);
}

.form-control:focus {
    border-color: var(--color-accent);
    background: rgba(255, 255, 255, 0.05);
    box-shadow: 0 0 15px rgba(245, 158, 11, 0.15);
}

/* Erreurs de validation */
.form-error-msg {
    font-size: 0.8rem;
    color: #f87171;
    display: none;
    font-weight: 600;
}

.form-control.invalid {
    border-color: #f87171;
    background-color: rgba(239, 68, 68, 0.05);
}

.form-control.invalid:focus {
    box-shadow: 0 0 15px rgba(239, 68, 68, 0.2);
}

/* Infos contact */
.contact-info-box {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-info-title {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 16px;
}

.contact-info-subtitle {
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin-bottom: 45px;
    line-height: 1.7;
}

.info-list {
    display: flex;
    flex-direction: column;
    gap: 35px;
}

.info-item {
    display: flex;
    gap: 24px;
    align-items: flex-start;
}

.info-icon {
    width: 52px;
    height: 52px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--color-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.info-text h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 6px;
}

.info-text p, .info-text a {
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

.info-text a:hover {
    color: var(--color-white);
}

/* ==========================================================================
   FOOTER - EPURE & LUXUEUX
   ========================================================================== */
.main-footer {
    background-color: #04060b;
    color: var(--color-text-light);
    padding: 100px 0 0 0;
    border-top: 1px solid rgba(255, 255, 255, 0.03);
}

.footer-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 45px;
    padding-bottom: 60px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.footer-logo span {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--color-white);
}

.footer-logo span span {
    color: var(--color-accent);
}

.footer-about-text {
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--color-text-light);
}

.footer-col-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 28px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.footer-links a {
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    color: var(--color-text-light);
}

.footer-links a:hover {
    color: var(--color-white);
    transform: translateX(6px);
}

.footer-link-icon {
    font-size: 0.6rem;
    margin-right: 10px;
    color: var(--color-accent);
}

.footer-follow-text {
    font-size: 0.9rem;
    margin-bottom: 24px;
}

.footer-social-links {
    display: flex;
    gap: 12px;
}

.footer-social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.footer-social-links a:hover {
    background: var(--color-accent);
    color: var(--color-bg-darkest);
    border-color: var(--color-accent);
    box-shadow: 0 0 15px var(--color-accent-glow);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.03);
    padding: 30px 0;
    text-align: center;
    font-size: 0.85rem;
}

/* ==========================================================================
   INTERACTIONS & BOUTONS FLOTTANTS
   ========================================================================== */
/* Bouton WhatsApp Flottant */
.floating-whatsapp-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25d366;
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.35);
    z-index: 998;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.floating-whatsapp-btn:hover {
    transform: scale(1.08) translateY(-3px);
    box-shadow: 0 8px 30px rgba(37, 211, 102, 0.5);
}

.whatsapp-tooltip {
    position: absolute;
    right: 75px;
    background-color: #0f172a;
    color: var(--color-white);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 8px 14px;
    border-radius: var(--border-radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transform: translateX(10px);
    transition: all var(--transition-fast);
    pointer-events: none;
    box-shadow: var(--shadow-md);
}

.floating-whatsapp-btn:hover .whatsapp-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

/* Bouton Retour en Haut */
.back-to-top-btn {
    position: fixed;
    bottom: 105px;
    right: 30px;
    width: 44px;
    height: 44px;
    background: rgba(30, 41, 59, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--color-white);
    border: var(--border-glass);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    box-shadow: var(--shadow-sm);
    z-index: 997;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-normal);
}

.back-to-top-btn.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top-btn:hover {
    background: var(--color-accent);
    color: var(--color-bg-darkest);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-glow-accent);
}

/* Modale de confirmation de luxe */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(4, 6, 11, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 1100;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-box {
    background: rgba(30, 41, 59, 0.4);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border: var(--border-glass);
    padding: 50px 40px;
    border-radius: var(--border-radius-lg);
    max-width: 500px;
    width: 90%;
    text-align: center;
    box-shadow: var(--shadow-lg), var(--shadow-glow-blue);
    position: relative;
    transform: scale(0.9);
    transition: transform var(--transition-normal);
}

.modal-overlay.active .modal-box {
    transform: scale(1);
}

.modal-close-btn {
    position: absolute;
    top: 15px;
    right: 20px;
    background: transparent;
    font-size: 1.8rem;
    color: var(--color-text-light);
    cursor: pointer;
}

.modal-close-btn:hover {
    color: var(--color-white);
}

.modal-icon-box {
    font-size: 3.5rem;
    color: var(--color-success);
    margin-bottom: 24px;
    text-shadow: 0 0 20px rgba(16, 185, 129, 0.4);
}

.modal-title {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--color-white);
    margin-bottom: 14px;
    letter-spacing: 0.5px;
}

.modal-desc {
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin-bottom: 30px;
    line-height: 1.7;
}

.modal-close-action-btn {
    padding: 12px 32px;
}

/* ==========================================================================
   ANIMATIONS D'APPARITION (Intersection Observer)
   ========================================================================== */
.reveal-fade-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), 
                transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-fade-up.active {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================================================
   MEDIA QUERIES (RESPONSIVE TABLET & BUREAU)
   ========================================================================== */

/* Tablettes (768px+) */
@media (min-width: 768px) {
    .section-title {
        font-size: 3rem;
    }
    
    .hero-section {
        padding: 180px 0 120px 0;
    }
    .hero-title {
        font-size: 3.5rem;
    }
    .hero-subtitle {
        font-size: 1.1rem;
    }
    .hero-buttons {
        flex-direction: row;
    }
    
    /* Grids */
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .realisations-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .processus-timeline {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Ordinateurs (1024px+) */
@media (min-width: 1024px) {
    .burger-menu-btn {
        display: none;
    }
    .nav-desktop {
        display: block;
    }
    .header-cta {
        display: block;
    }
    
    /* Hero */
    .hero-container {
        grid-template-columns: 1.15fr 0.85fr;
        text-align: left;
    }
    .hero-content {
        text-align: left;
    }
    .hero-subtitle {
        margin-left: 0;
    }
    .hero-buttons {
        justify-content: flex-start;
    }
    .hero-visual {
        max-width: none;
    }
    
    /* Grids */
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .tarifs-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .testimonials-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* Processus avec ligne horizontale high-tech */
    .processus-timeline {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .processus-timeline::after {
        content: '';
        position: absolute;
        top: 42px;
        left: 12%;
        width: 76%;
        height: 2px;
        background: linear-gradient(90deg, 
            rgba(245, 158, 11, 0) 0%, 
            rgba(245, 158, 11, 0.4) 15%, 
            rgba(245, 158, 11, 0.4) 85%, 
            rgba(245, 158, 11, 0) 100%
        );
        z-index: 1;
    }
    
    /* Contact */
    .contact-container {
        grid-template-columns: 1.1fr 0.9fr;
    }
    
    /* Footer */
    .footer-container {
        grid-template-columns: 1.5fr 1fr 1fr 1fr;
    }
}