/* =============================================
   ELAN DIGITAL AGENCY - Main CSS
   Couleurs: Orange #F7941D, Bleu foncé #0A1628
   ============================================= */

:root {
    --orange: #F7941D;
    --orange-dark: #E07B0A;
    --orange-light: #FFA940;
    --navy: #0A1628;
    --navy-light: #1A2C4E;
    --navy-mid: #152238;
    --white: #FFFFFF;
    --gray-100: #F5F7FA;
    --gray-200: #E8ECF0;
    --gray-500: #8A9BB0;
    --gray-700: #4A5568;
    --gray-900: #1A202C;
    --font-display: 'Syne', sans-serif;
    --font-body: 'DM Sans', sans-serif;
    --shadow-sm: 0 2px 10px rgba(10,22,40,0.08);
    --shadow-md: 0 8px 30px rgba(10,22,40,0.12);
    --shadow-lg: 0 20px 60px rgba(10,22,40,0.15);
    --shadow-orange: 0 8px 30px rgba(247,148,29,0.3);
    --radius: 12px;
    --radius-lg: 20px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: var(--font-body);
    color: var(--gray-900);
    background: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; }
ul { list-style: none; }

/* ---- TYPOGRAPHY ---- */
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.2; }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.6rem); }

/* ---- BUTTONS ---- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 50px;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    text-decoration: none;
}
.btn-primary {
    background: var(--orange);
    color: var(--white);
    box-shadow: var(--shadow-orange);
}
.btn-primary:hover {
    background: var(--orange-dark);
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(247,148,29,0.4);
}
.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.5);
}
.btn-outline:hover {
    border-color: var(--orange);
    color: var(--orange);
    background: rgba(247,148,29,0.08);
}
.btn-dark {
    background: var(--navy);
    color: var(--white);
}
.btn-dark:hover { background: var(--navy-light); transform: translateY(-2px); }

/* ---- SECTION HEADERS ---- */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}
.section-badge {
    display: inline-block;
    background: rgba(247,148,29,0.1);
    color: var(--orange);
    padding: 6px 18px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 16px;
}
.section-title {
    color: var(--navy);
    margin-bottom: 16px;
}
.section-title span { color: var(--orange); }
.section-subtitle {
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.05rem;
}
.section-divider {
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--orange), var(--orange-light));
    border-radius: 2px;
    margin: 16px auto 0;
}

/* ---- NAVBAR ---- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
    background: transparent;
}
.navbar.scrolled {
    background: rgba(10,22,40,0.97);
    backdrop-filter: blur(20px);
    padding: 12px 0;
    box-shadow: 0 4px 30px rgba(0,0,0,0.2);
}
.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}
.nav-logo img { height: 40px; }
.logo-text { font-family: var(--font-display); font-size: 1.3rem; font-weight: 800; color: white; }
.logo-orange { color: var(--orange); }
.logo-sub { display: block; font-size: 0.55rem; letter-spacing: 3px; color: var(--gray-500); margin-top: -4px; }

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}
.nav-link {
    color: rgba(255,255,255,0.8);
    font-weight: 500;
    padding: 8px 14px;
    border-radius: 8px;
    transition: var(--transition);
    font-size: 0.9rem;
}
.nav-link:hover, .nav-link.active {
    color: var(--orange);
    background: rgba(247,148,29,0.1);
}
.btn-nav {
    background: var(--orange);
    color: var(--white) !important;
    padding: 10px 24px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.85rem;
    transition: var(--transition);
}
.btn-nav:hover {
    background: var(--orange-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-orange);
}

.nav-burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.nav-burger span {
    display: block;
    width: 25px;
    height: 2px;
    background: white;
    border-radius: 2px;
    transition: var(--transition);
}

/* ---- HERO ---- */
.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 50%, var(--navy-light) 100%);
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding-top: 80px;
}
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23F7941D' fill-opacity='0.04'%3E%3Ccircle cx='30' cy='30' r='1'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(247,148,29,0.15);
    border: 1px solid rgba(247,148,29,0.3);
    color: var(--orange);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 24px;
}
.hero-badge::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--orange);
    border-radius: 50%;
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.5); }
}
.hero-title {
    color: var(--white);
    margin-bottom: 20px;
    font-weight: 800;
}
.hero-title .highlight { color: var(--orange); }
.hero-subtitle {
    color: rgba(255,255,255,0.7);
    font-size: 1.1rem;
    margin-bottom: 40px;
    line-height: 1.7;
}
.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 50px;
}
.hero-stats {
    display: flex;
    gap: 40px;
}
.stat-item { text-align: center; }
.stat-number {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 800;
    color: var(--orange);
}
.stat-label {
    color: rgba(255,255,255,0.5);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}
.hero-card-main {
    background: linear-gradient(145deg, rgba(255,255,255,0.1), rgba(255,255,255,0.05));
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 24px;
    padding: 40px;
    backdrop-filter: blur(10px);
    text-align: center;
    animation: float 6s ease-in-out infinite;
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}
.hero-card-main .hero-icon {
    font-size: 4rem;
    margin-bottom: 20px;
}
.hero-card-main h3 { color: white; margin-bottom: 10px; }
.hero-card-main p { color: rgba(255,255,255,0.6); font-size: 0.9rem; }

.floating-card {
    position: absolute;
    background: rgba(255,255,255,0.95);
    border-radius: 16px;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow-lg);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--navy);
    animation: float-side 5s ease-in-out infinite;
}
.floating-card.card-1 { top: 10%; left: -30px; animation-delay: -2s; }
.floating-card.card-2 { bottom: 15%; right: -30px; animation-delay: -4s; }
.floating-card .fc-icon {
    width: 36px;
    height: 36px;
    background: rgba(247,148,29,0.15);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--orange);
    font-size: 1.1rem;
    flex-shrink: 0;
}
@keyframes float-side {
    0%, 100% { transform: translateY(0) rotate(-1deg); }
    50% { transform: translateY(-10px) rotate(1deg); }
}

/* ---- SERVICES ---- */
.services-section { padding: 100px 0; background: var(--gray-100); }
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}
.service-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 36px 30px;
    transition: var(--transition);
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}
.service-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--orange), var(--orange-light));
    transform: scaleX(0);
    transition: var(--transition);
}
.service-card:hover {
    border-color: rgba(247,148,29,0.2);
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}
.service-card:hover::after { transform: scaleX(1); }
.service-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(247,148,29,0.15), rgba(247,148,29,0.05));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    color: var(--orange);
    margin-bottom: 20px;
    transition: var(--transition);
}
.service-card:hover .service-icon {
    background: var(--orange);
    color: white;
    transform: scale(1.1);
}
.service-card h3 {
    font-size: 1.15rem;
    color: var(--navy);
    margin-bottom: 12px;
}
.service-card p {
    color: var(--gray-500);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 20px;
}
.service-prix {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--orange);
    font-size: 0.9rem;
}
.service-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--navy);
    font-weight: 600;
    font-size: 0.85rem;
    transition: var(--transition);
}
.service-link:hover { color: var(--orange); gap: 10px; }

/* ---- PORTFOLIO/REALISATIONS ---- */
.portfolio-section { padding: 100px 0; }
.portfolio-filters {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 48px;
}
.filter-btn {
    padding: 10px 24px;
    border-radius: 50px;
    background: var(--gray-100);
    border: none;
    cursor: pointer;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--gray-700);
    transition: var(--transition);
}
.filter-btn.active, .filter-btn:hover {
    background: var(--orange);
    color: var(--white);
}
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 24px;
}
.portfolio-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--white);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.portfolio-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}
.portfolio-image {
    position: relative;
    height: 220px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--navy), var(--navy-light));
}
.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.portfolio-card:hover .portfolio-image img { transform: scale(1.08); }
.portfolio-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--orange);
    color: white;
    padding: 4px 14px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}
.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: rgba(10,22,40,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}
.portfolio-card:hover .portfolio-overlay { opacity: 1; }
.portfolio-overlay a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--orange);
    color: white;
    padding: 10px 24px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.85rem;
    transition: var(--transition);
}
.portfolio-body {
    padding: 24px;
}
.portfolio-body h3 {
    font-size: 1.1rem;
    color: var(--navy);
    margin-bottom: 8px;
}
.portfolio-client {
    color: var(--orange);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 10px;
}
.portfolio-tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-top: 12px;
}
.portfolio-tag {
    background: var(--gray-100);
    color: var(--gray-700);
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 500;
}

/* ---- FORMATIONS ---- */
.formations-section { padding: 100px 0; background: var(--navy); }
.formations-section .section-title { color: var(--white); }
.formations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}
.formation-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
}
.formation-card:hover {
    border-color: var(--orange);
    transform: translateY(-4px);
    box-shadow: 0 20px 50px rgba(247,148,29,0.15);
}
.formation-header {
    padding: 28px;
    background: linear-gradient(135deg, rgba(247,148,29,0.2), rgba(247,148,29,0.05));
}
.formation-niveau {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 12px;
}
.niveau-debutant { background: rgba(34,197,94,0.2); color: #22c55e; }
.niveau-intermediaire { background: rgba(247,148,29,0.2); color: var(--orange); }
.niveau-avance { background: rgba(239,68,68,0.2); color: #ef4444; }

.formation-body { padding: 24px 28px 28px; }
.formation-body h3 { color: white; font-size: 1.1rem; margin-bottom: 10px; }
.formation-body p { color: rgba(255,255,255,0.6); font-size: 0.9rem; margin-bottom: 20px; }
.formation-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}
.formation-meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    color: rgba(255,255,255,0.5);
    font-size: 0.8rem;
}
.formation-meta-item i { color: var(--orange); }
.formation-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 28px;
    border-top: 1px solid rgba(255,255,255,0.08);
}
.formation-prix {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--orange);
}

/* ---- TESTIMONIALS ---- */
.testimonials-section { padding: 100px 0; background: var(--gray-100); }
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}
.testimonial-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 32px;
    position: relative;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.testimonial-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.testimonial-card::before {
    content: '"';
    font-size: 6rem;
    font-family: var(--font-display);
    color: rgba(247,148,29,0.1);
    position: absolute;
    top: -10px;
    left: 24px;
    line-height: 1;
}
.stars { color: var(--orange); font-size: 0.9rem; margin-bottom: 16px; }
.testimonial-text { color: var(--gray-700); font-style: italic; margin-bottom: 20px; line-height: 1.7; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--orange), var(--navy));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-family: var(--font-display);
    font-size: 1.1rem;
    overflow: hidden;
    flex-shrink: 0;
}
.author-avatar img { width: 100%; height: 100%; object-fit: cover; }
.author-name { font-weight: 700; color: var(--navy); font-size: 0.9rem; }
.author-role { color: var(--gray-500); font-size: 0.8rem; }

/* ---- CTA ---- */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(247,148,29,0.15) 0%, transparent 70%);
    top: -100px;
    right: -100px;
}
.cta-section h2 { color: var(--white); margin-bottom: 16px; }
.cta-section p { color: rgba(255,255,255,0.7); max-width: 600px; margin: 0 auto 40px; font-size: 1.05rem; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ---- FOOTER ---- */
.footer { background: #060D1A; color: rgba(255,255,255,0.7); }
.footer-top { padding: 80px 0 40px; }
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
}
.footer-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 16px;
    display: flex;
    align-items: baseline;
    gap: 6px;
}
.footer-brand p { font-size: 0.9rem; margin-bottom: 24px; line-height: 1.7; }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
    width: 38px;
    height: 38px;
    background: rgba(255,255,255,0.08);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    font-size: 0.9rem;
}
.footer-social a:hover { background: var(--orange); color: white; transform: translateY(-2px); }
.footer-links h4 {
    font-family: var(--font-display);
    color: var(--white);
    margin-bottom: 20px;
    font-size: 1rem;
}
.footer-links li { margin-bottom: 10px; }
.footer-links a {
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.footer-links a:hover { color: var(--orange); padding-left: 4px; }
.footer-contact-info h4 {
    font-family: var(--font-display);
    color: var(--white);
    margin-bottom: 20px;
}
.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 14px;
    font-size: 0.9rem;
}
.contact-item i { color: var(--orange); margin-top: 2px; flex-shrink: 0; }
.contact-item a { color: rgba(255,255,255,0.6); transition: var(--transition); }
.contact-item a:hover { color: var(--orange); }
.footer-bottom {
    padding: 20px 0;
    border-top: 1px solid rgba(255,255,255,0.06);
    display: flex;
}
.footer-bottom .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.4);
    width: 100%;
}

/* ---- WHATSAPP FLOAT ---- */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 56px;
    height: 56px;
    background: #25d366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    box-shadow: 0 4px 20px rgba(37,211,102,0.4);
    z-index: 999;
    transition: var(--transition);
}
.whatsapp-float:hover { transform: scale(1.1); box-shadow: 0 8px 30px rgba(37,211,102,0.5); }

/* ---- FORMS ---- */
.form-group { margin-bottom: 20px; }
.form-label {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--navy);
    margin-bottom: 8px;
}
.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--gray-900);
    background: var(--white);
    transition: var(--transition);
    outline: none;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
    border-color: var(--orange);
    box-shadow: 0 0 0 4px rgba(247,148,29,0.1);
}
.form-textarea { resize: vertical; min-height: 130px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

/* ---- PAGE HEADER ---- */
.page-header {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, var(--navy), var(--navy-light));
    text-align: center;
    position: relative;
    overflow: hidden;
}
.page-header h1 { color: var(--white); margin-bottom: 16px; }
.page-header p { color: rgba(255,255,255,0.7); max-width: 600px; margin: 0 auto; font-size: 1.05rem; }
.breadcrumb {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 20px;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.5);
}
.breadcrumb a { color: var(--orange); }
.breadcrumb span { color: rgba(255,255,255,0.3); }

/* ---- ALERT ---- */
.alert {
    padding: 16px 20px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
}
.alert-success { background: rgba(34,197,94,0.1); color: #15803d; border: 1px solid rgba(34,197,94,0.2); }
.alert-error { background: rgba(239,68,68,0.1); color: #dc2626; border: 1px solid rgba(239,68,68,0.2); }

/* ---- CARDS COMMON ---- */
.card { background: var(--white); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); }

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .hero-content { gap: 40px; }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(10,22,40,0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 20px;
        gap: 4px;
        border-top: 1px solid rgba(255,255,255,0.1);
    }
    .nav-links.open { display: flex; }
    .nav-link { padding: 12px 16px; border-radius: 10px; }
    .nav-burger { display: flex; }
    
    .hero-content { grid-template-columns: 1fr; text-align: center; }
    .hero-visual { display: none; }
    .hero-actions { justify-content: center; }
    .hero-stats { justify-content: center; }
    
    .services-grid { grid-template-columns: 1fr; }
    .portfolio-grid { grid-template-columns: 1fr; }
    .formations-grid { grid-template-columns: 1fr; }
    .testimonials-grid { grid-template-columns: 1fr; }
    
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom .container { flex-direction: column; text-align: center; }
    
    .form-row { grid-template-columns: 1fr; }
    
    .portfolio-filters { gap: 8px; }
    .filter-btn { padding: 8px 16px; font-size: 0.8rem; }
}

/* ---- ANIMATIONS ---- */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Utility */
.text-orange { color: var(--orange); }
.text-navy { color: var(--navy); }
.text-white { color: var(--white); }
.bg-gray { background: var(--gray-100); }
.mb-0 { margin-bottom: 0; }
.mt-4 { margin-top: 16px; }
.text-center { text-align: center; }