/* ---------- Base ---------- */
:root {
    --ink: #0a2540;
    --ink-soft: #1e3a5f;
    --ink-muted: #6b7a8e;
    --line: #ebe4d3;
    --bg: #fdfaf3;
    --bg-alt: #f6f0e2;
    --white: #ffffff;
    --primary: #c9a961;
    --primary-dark: #a3874a;
    --primary-light: #f5ebd0;
    --primary-glow: rgba(201, 169, 97, 0.15);
    --accent: #e6c882;
    --navy: #0a2540;
    --navy-deep: #051834;
    --radius: 14px;
    --radius-sm: 10px;
    --shadow-sm: 0 1px 2px rgba(10, 37, 64, 0.04), 0 1px 3px rgba(10, 37, 64, 0.06);
    --shadow-md: 0 4px 20px rgba(10, 37, 64, 0.06), 0 2px 8px rgba(10, 37, 64, 0.04);
    --shadow-lg: 0 20px 60px rgba(10, 37, 64, 0.10), 0 8px 24px rgba(10, 37, 64, 0.06);
    --shadow-gold: 0 10px 30px rgba(201, 169, 97, 0.25);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--ink);
    background: var(--bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container { max-width: 1240px; margin: 0 auto; padding: 0 32px; }

h1, h2, h3, h4, h5 { font-family: 'Playfair Display', Georgia, serif; font-weight: 500; letter-spacing: -0.01em; color: var(--ink); }
h1 { font-size: clamp(2.5rem, 5vw, 4rem); line-height: 1.05; }
h2 { font-size: clamp(2rem, 3.6vw, 3rem); line-height: 1.1; }
h3 { font-size: 1.5rem; line-height: 1.25; }
h4 { font-size: 1.15rem; }
h1 em, h2 em, h3 em { font-style: italic; color: var(--primary); font-weight: 400; }

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; font-size: 1rem; }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 100px;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
    white-space: nowrap;
}
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    box-shadow: 0 6px 20px rgba(201, 169, 97, 0.3);
    font-weight: 600;
}
.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(201, 169, 97, 0.4);
}
.btn-ghost {
    background: transparent;
    color: var(--ink);
    border: 1px solid var(--line);
}
.btn-ghost:hover {
    border-color: var(--ink);
    background: var(--ink);
    color: var(--white);
}
.btn-large { padding: 18px 36px; font-size: 1rem; }

/* ---------- Nav ---------- */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 8px 0;
    background: rgba(253, 250, 243, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}
.nav.scrolled { border-color: var(--line); padding: 6px 0; background: rgba(253, 250, 243, 0.95); }
.nav-container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: 0.05em;
    transition: var(--transition);
}
.nav-logo:hover { transform: translateY(-1px); }
.logo-img {
    height: 130px;
    width: auto;
    display: block;
    filter: drop-shadow(0 2px 8px rgba(10, 37, 64, 0.12));
    transition: var(--transition);
}
.nav.scrolled .logo-img { height: 100px; }
.footer-logo { height: 150px; filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.3)); }
.nav-menu {
    display: flex;
    gap: 36px;
    list-style: none;
    font-size: 0.9rem;
    font-weight: 500;
}
.nav-menu a {
    color: var(--ink-soft);
    transition: var(--transition);
    position: relative;
}
.nav-menu a:hover { color: var(--ink); }
.nav-cta {
    padding: 10px 22px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    border-radius: 100px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(201, 169, 97, 0.3);
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(201, 169, 97, 0.4); }
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 60;
}
.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--ink);
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
    transform-origin: center;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
.nav-menu-cta { display: none; }

/* ---------- Hero ---------- */
.hero {
    position: relative;
    min-height: 100vh;
    padding: 190px 32px 80px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
}
.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(1200px 600px at 80% 20%, rgba(13, 108, 181, 0.08), transparent 60%),
        radial-gradient(800px 400px at 10% 80%, rgba(6, 182, 212, 0.06), transparent 60%),
        linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%);
    z-index: -1;
}
.hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(10, 31, 46, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(10, 31, 46, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}
.hero-inner {
    max-width: 1240px;
    margin: 0 auto;
    width: 100%;
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}
.hero-content { width: 100%; }
.hero-visual {
    position: relative;
    height: 560px;
}
.hero-img {
    position: absolute;
    border-radius: var(--radius);
    background-size: cover;
    background-position: center;
    box-shadow: var(--shadow-lg);
}
.hero-img-main {
    top: 0;
    right: 0;
    width: 78%;
    height: 70%;
    background-image: url('images/piscine-noire.png');
}
.hero-img-secondary {
    bottom: 0;
    left: 0;
    width: 55%;
    height: 45%;
    background-image: url('images/piscine-villa.png');
    border: 6px solid var(--bg);
}
.hero-badge {
    position: absolute;
    top: 55%;
    left: -20px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    background: var(--white);
    border-radius: 100px;
    box-shadow: var(--shadow-lg);
    z-index: 2;
}
.hero-badge svg { color: var(--primary); flex-shrink: 0; }
.hero-badge { border: 1px solid var(--primary-light); }
.hero-badge strong { display: block; font-size: 0.85rem; color: var(--ink); font-weight: 600; }
.hero-badge span { display: block; font-size: 0.75rem; color: var(--ink-muted); }
.hero-tag {
    display: inline-block;
    padding: 8px 16px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--ink-soft);
    margin-bottom: 32px;
    letter-spacing: 0.02em;
    box-shadow: var(--shadow-sm);
}
.hero-title { max-width: 900px; margin-bottom: 24px; }
.hero-subtitle {
    max-width: 620px;
    font-size: 1.15rem;
    color: var(--ink-muted);
    margin-bottom: 40px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 80px; }
.hero-stats {
    display: flex;
    gap: 60px;
    padding-top: 40px;
    border-top: 1px solid var(--line);
    max-width: 700px;
    flex-wrap: wrap;
}
.stat { display: flex; flex-direction: column; gap: 4px; }
.stat-num { font-family: 'Playfair Display', serif; font-size: 2rem; color: var(--ink); font-weight: 500; }
.stat-label { font-size: 0.85rem; color: var(--ink-muted); }
.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 40px;
    border: 1.5px solid var(--ink-muted);
    border-radius: 100px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}
.hero-scroll span {
    display: block;
    width: 3px;
    height: 8px;
    background: var(--ink-muted);
    border-radius: 3px;
    animation: scroll 2s infinite;
}
@keyframes scroll {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(16px); opacity: 0; }
}

/* ---------- Sections ---------- */
section { padding: 120px 0; }
.section-head { max-width: 700px; margin-bottom: 60px; }
.section-head.center { margin: 0 auto 60px; text-align: center; }
.eyebrow {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 16px;
}
.section-head h2 { margin-bottom: 20px; }
.section-head p { font-size: 1.1rem; color: var(--ink-muted); }

/* ---------- Services ---------- */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card {
    position: relative;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    transition: var(--transition);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}
.service-media {
    height: 200px;
    background-size: cover;
    background-position: center;
    position: relative;
}
.service-media::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(10, 31, 46, 0.15));
}
.service-body { padding: 32px; display: flex; flex-direction: column; flex: 1; }
.service-card.featured {
    background: var(--ink);
    color: rgba(255, 255, 255, 0.8);
    border-color: var(--ink);
}
.service-card.featured h3, .service-card.featured .service-price strong { color: var(--white); }
.service-card.featured .service-icon { background: rgba(13, 108, 181, 0.2); color: var(--accent); }
.service-card.featured .service-features li { color: rgba(255, 255, 255, 0.7); }
.service-card.featured .service-features li::before { background: var(--accent); }
.badge {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 4px 12px;
    background: var(--accent);
    color: var(--white);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border-radius: 100px;
}
.service-icon {
    width: 56px;
    height: 56px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}
.service-card h3 { margin-bottom: 12px; }
.service-card > p { margin-bottom: 24px; font-size: 0.95rem; }
.service-features { list-style: none; margin-bottom: 28px; }
.service-features li {
    padding: 8px 0 8px 24px;
    position: relative;
    font-size: 0.9rem;
    color: var(--ink-soft);
    border-bottom: 1px solid rgba(228, 236, 241, 0.5);
}
.service-features li:last-child { border-bottom: none; }
.service-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 15px;
    width: 12px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
}
.service-price {
    padding-top: 20px;
    border-top: 1px solid var(--line);
    font-size: 0.85rem;
    color: var(--ink-muted);
}
.service-price strong { font-family: 'Playfair Display', serif; font-size: 1.4rem; color: var(--ink); font-weight: 500; }
.service-card.featured .service-price { border-color: rgba(255, 255, 255, 0.1); }

/* ---------- Coloris ---------- */
.coloris { background: var(--bg-alt); }
.coloris-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.coloris-card {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--white);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    cursor: pointer;
}
.coloris-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.coloris-img {
    height: 260px;
    background-size: cover;
    background-position: center;
    transition: transform 0.6s ease;
}
.coloris-card:hover .coloris-img { transform: scale(1.05); }
.coloris-card figcaption {
    padding: 20px 24px;
    display: flex;
    align-items: center;
    gap: 16px;
}
.coloris-swatch {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    flex-shrink: 0;
    box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.08), 0 2px 8px rgba(0, 0, 0, 0.08);
    border: 3px solid var(--white);
}
.coloris-card h4 {
    font-size: 1.1rem;
    margin-bottom: 2px;
}
.coloris-card figcaption p {
    font-size: 0.82rem;
    color: var(--ink-muted);
    margin: 0;
    line-height: 1.4;
}
.coloris-tint { position: relative; }
.coloris-tint::after {
    content: '';
    position: absolute;
    inset: 0;
    mix-blend-mode: multiply;
    opacity: 0.6;
    transition: opacity 0.4s ease;
}
.coloris-card:hover .coloris-tint::after { opacity: 0.35; }
.tint-caraibes::after { background: linear-gradient(180deg, transparent, rgba(124, 192, 230, 0.4)); }
.tint-nuit::after { background: linear-gradient(180deg, transparent, rgba(10, 37, 64, 0.7)); }
.tint-sable::after { background: linear-gradient(180deg, transparent, rgba(201, 183, 138, 0.55)); }
.tint-gris::after { background: linear-gradient(180deg, transparent, rgba(90, 96, 104, 0.55)); }
.tint-lagon::after { background: linear-gradient(180deg, transparent, rgba(58, 138, 106, 0.5)); }
.tint-perle::after { background: linear-gradient(180deg, transparent, rgba(216, 210, 194, 0.35)); }

/* ---------- Tarifs PVC armé ---------- */
.tarifs { background: var(--white); }
.tarifs-tabs {
    display: flex;
    gap: 8px;
    padding: 6px;
    background: var(--bg-alt);
    border-radius: 100px;
    max-width: 720px;
    margin: 0 auto 40px;
    flex-wrap: wrap;
    justify-content: center;
}
.tarif-tab {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 22px;
    background: transparent;
    color: var(--ink-soft);
    border-radius: 100px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}
.tarif-tab svg { opacity: 0.6; transition: var(--transition); }
.tarif-tab:hover { color: var(--ink); }
.tarif-tab.active {
    background: var(--white);
    color: var(--primary-dark);
    box-shadow: var(--shadow-sm);
}
.tarif-tab.active svg { opacity: 1; color: var(--primary); }

.tarifs-panel { display: none; animation: fadeIn 0.4s ease; }
.tarifs-panel.active { display: block; }

.tarif-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 60px;
}
.tarif-card {
    position: relative;
    padding: 32px 28px;
    background: var(--white);
    border: 1.5px solid var(--line);
    border-radius: var(--radius);
    text-align: center;
    transition: var(--transition);
}
.tarif-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}
.tarif-card.highlight {
    background: linear-gradient(180deg, var(--white), var(--primary-light));
    border-color: var(--primary);
    box-shadow: var(--shadow-gold);
}
.badge-small {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 14px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border-radius: 100px;
    box-shadow: 0 4px 12px rgba(201, 169, 97, 0.3);
    white-space: nowrap;
}
.tarif-size { margin-bottom: 20px; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.tarif-dim { display: block; font-family: 'Playfair Display', serif; font-size: 1.4rem; color: var(--ink); margin-bottom: 4px; font-weight: 500; }
.tarif-area { display: block; font-size: 0.85rem; color: var(--ink-muted); }
.tarif-price span { display: block; font-size: 0.75rem; color: var(--ink-muted); text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 6px; }
.tarif-price strong { display: block; font-family: 'Playfair Display', serif; font-size: 2rem; color: var(--primary-dark); font-weight: 500; line-height: 1; margin-bottom: 4px; }
.tarif-price em { display: block; font-size: 0.8rem; color: var(--ink-muted); font-style: normal; }

.tarifs-included {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    padding: 40px;
    background: var(--bg-alt);
    border-radius: var(--radius);
    margin-bottom: 40px;
}
.included-col h4 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    font-size: 1.1rem;
    color: var(--ink);
}
.included-col h4 svg {
    width: 36px;
    height: 36px;
    padding: 8px;
    background: var(--white);
    color: var(--primary);
    border-radius: 50%;
    box-shadow: var(--shadow-sm);
}
.included-col.excluded h4 svg { color: #d97706; }
.included-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.included-col li {
    position: relative;
    padding-left: 26px;
    font-size: 0.9rem;
    color: var(--ink-soft);
    line-height: 1.5;
}
.included-col li::before {
    content: '';
    position: absolute;
    left: 6px;
    top: 8px;
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
}
.included-col.excluded li::before { background: #d97706; }

.tarifs-cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 28px 36px;
    background: var(--ink);
    color: rgba(255, 255, 255, 0.85);
    border-radius: var(--radius);
    gap: 24px;
    flex-wrap: wrap;
}
.tarifs-cta p { margin: 0; font-size: 0.95rem; max-width: 500px; }

/* ---------- Matériel ---------- */
.materiel { background: var(--bg-alt); }
.materiel-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}
.materiel-item {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.materiel-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.materiel-img {
    height: 320px;
    background-size: cover;
    background-position: center;
}
.materiel-item figcaption { padding: 28px 32px; }
.materiel-item h4 { margin-bottom: 8px; font-size: 1.2rem; }
.materiel-item p { color: var(--ink-muted); font-size: 0.92rem; line-height: 1.6; margin: 0; }

/* ---------- Calculator ---------- */
.devis { background: var(--white); }
.calculator {
    max-width: 960px;
    margin: 0 auto;
    background: var(--white);
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: 1px solid var(--line);
}
.calc-progress {
    padding: 32px 40px 0;
    background: var(--white);
    border-bottom: 1px solid var(--line);
}
.calc-progress-bar {
    height: 3px;
    background: var(--line);
    border-radius: 2px;
    position: relative;
    margin-bottom: 24px;
}
.calc-progress-bar::before {
    content: '';
    position: absolute;
    inset: 0;
    width: 20%;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 2px;
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.calc-steps {
    display: flex;
    justify-content: space-between;
    padding-bottom: 24px;
    overflow-x: auto;
    gap: 16px;
}
.calc-step {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--ink-muted);
    font-weight: 500;
    white-space: nowrap;
    transition: var(--transition);
}
.calc-step i {
    display: flex;
    width: 24px;
    height: 24px;
    align-items: center;
    justify-content: center;
    background: var(--line);
    color: var(--ink-muted);
    border-radius: 50%;
    font-style: normal;
    font-size: 0.75rem;
    font-weight: 600;
    transition: var(--transition);
}
.calc-step.active { color: var(--ink); }
.calc-step.active i { background: var(--ink); color: var(--white); }
.calc-step.done i { background: var(--primary); color: var(--white); }
.calc-form { padding: 48px 40px; }
.calc-panel { display: none; animation: fadeIn 0.4s ease; }
.calc-panel.active { display: block; }
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}
.calc-panel h3 { margin-bottom: 8px; font-size: 1.4rem; }
.calc-hint { color: var(--ink-muted); margin-bottom: 28px; font-size: 0.95rem; }

/* Option grid */
.option-grid { display: grid; gap: 12px; }
.options-2 { grid-template-columns: repeat(2, 1fr); }
.options-3 { grid-template-columns: repeat(3, 1fr); }
.options-4 { grid-template-columns: repeat(4, 1fr); }

.option-card {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 20px 16px;
    background: var(--white);
    border: 1.5px solid var(--line);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}
.option-card:hover { border-color: var(--primary); background: var(--primary-light); }
.option-card input { position: absolute; opacity: 0; pointer-events: none; }
.option-card:has(input:checked) {
    border-color: var(--primary);
    background: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(13, 108, 181, 0.1);
}
.option-card:has(input:checked) .option-visual { color: var(--primary); }
.option-visual {
    width: 80px;
    height: 50px;
    color: var(--ink-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}
.option-visual svg { width: 100%; height: 100%; }
.option-card span { font-size: 0.9rem; font-weight: 500; }
.option-card.small { padding: 16px; flex-direction: row; justify-content: center; }
.option-card.wide { flex-direction: row; align-items: flex-start; text-align: left; padding: 24px; }
.option-content { flex: 1; }
.option-title { display: block; font-size: 1.1rem; font-weight: 600; margin-bottom: 6px; color: var(--ink); font-family: 'Playfair Display', serif; }
.option-desc { display: block; font-size: 0.88rem; color: var(--ink-muted); margin-bottom: 10px; }
.option-tag { display: inline-block; font-size: 0.8rem; color: var(--primary); font-weight: 600; }
.option-card.color { padding: 12px; }
.color-swatch {
    width: 100%;
    height: 60px;
    border-radius: 8px;
    box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.05);
}

/* Input group */
.dim-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.input-group { display: flex; flex-direction: column; gap: 8px; }
.input-group label { font-size: 0.85rem; font-weight: 500; color: var(--ink-soft); }
.input-group input {
    padding: 14px 16px;
    border: 1.5px solid var(--line);
    border-radius: var(--radius-sm);
    background: var(--white);
    color: var(--ink);
    transition: var(--transition);
}
.input-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(13, 108, 181, 0.1);
}
.input-hint { font-size: 0.75rem; color: var(--ink-muted); }

.calc-preview {
    margin-top: 28px;
    padding: 20px 24px;
    background: var(--bg-alt);
    border-radius: var(--radius-sm);
}
.preview-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 0;
    font-size: 0.9rem;
}
.preview-row span { color: var(--ink-muted); }
.preview-row strong { color: var(--ink); font-family: 'Playfair Display', serif; font-size: 1.15rem; }

/* Options list */
.options-list { display: flex; flex-direction: column; gap: 8px; }
.option-line {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 20px;
    background: var(--white);
    border: 1.5px solid var(--line);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}
.option-line:hover { border-color: var(--primary); background: var(--primary-light); }
.option-line input { width: 20px; height: 20px; accent-color: var(--primary); cursor: pointer; }
.option-line:has(input:checked) { border-color: var(--primary); background: var(--primary-light); }
.option-line > div { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.option-name { font-weight: 600; color: var(--ink); font-size: 0.95rem; }
.option-detail { font-size: 0.85rem; color: var(--ink-muted); }
.option-plus { font-weight: 600; color: var(--primary); font-size: 0.95rem; white-space: nowrap; }

.calc-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--line);
}
.calc-actions .btn-primary { margin-left: auto; }

/* Result */
.result-header { text-align: center; margin-bottom: 32px; }
.result-price {
    background: var(--ink);
    color: var(--white);
    padding: 40px;
    border-radius: var(--radius);
    text-align: center;
    margin-bottom: 40px;
    position: relative;
    overflow: hidden;
}
.result-price::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 20%, rgba(13, 108, 181, 0.3), transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(6, 182, 212, 0.2), transparent 50%);
}
.result-price > * { position: relative; }
.price-from { display: block; font-size: 0.85rem; color: rgba(255, 255, 255, 0.6); text-transform: uppercase; letter-spacing: 0.15em; margin-bottom: 12px; }
.price-range { display: flex; justify-content: center; align-items: baseline; gap: 16px; margin-bottom: 8px; font-family: 'Playfair Display', serif; }
.price-range span:not(.price-sep) { font-size: clamp(2rem, 5vw, 3rem); font-weight: 500; }
.price-sep { color: rgba(255, 255, 255, 0.5); font-style: italic; font-size: 1.2rem; }
.price-ttc { display: block; font-size: 0.85rem; color: rgba(255, 255, 255, 0.6); }

.result-breakdown { margin-bottom: 40px; }
.result-breakdown h4 { margin-bottom: 16px; font-size: 1.1rem; }
.result-breakdown ul { list-style: none; }
.result-breakdown li {
    display: flex;
    justify-content: space-between;
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
    font-size: 0.95rem;
}
.result-breakdown li:last-child { border-bottom: none; font-weight: 600; }
.result-breakdown li span:last-child { color: var(--ink); font-weight: 500; }
.result-breakdown li.breakdown-strong { background: rgba(0,0,0,0.02); font-weight: 600; padding-left: 12px; padding-right: 12px; border-radius: 8px; }
.result-breakdown li.breakdown-total { font-size: 1.15rem; font-weight: 700; color: var(--primary); border-top: 2px solid var(--line); margin-top: 8px; padding-top: 16px; }

.result-form {
    padding: 32px;
    background: var(--bg-alt);
    border-radius: var(--radius);
}
.result-form h4 { margin-bottom: 8px; }
.result-form > p { color: var(--ink-muted); font-size: 0.9rem; margin-bottom: 20px; }
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-bottom: 20px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field-full { grid-column: 1 / -1; margin-bottom: 20px; }
.field label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--ink-soft);
    display: flex;
    align-items: center;
    gap: 4px;
}
.field .req { color: #e11d48; font-weight: 700; }
.field .opt { color: var(--ink-muted); font-weight: 400; font-size: 0.8rem; }
.field-hint { font-size: 0.8rem; color: var(--ink-muted); margin-bottom: 10px; }
.field input, .form-grid input, .contact-form input, .contact-form textarea {
    padding: 14px 16px;
    border: 1.5px solid var(--line);
    border-radius: var(--radius-sm);
    background: var(--white);
    transition: var(--transition);
    font-size: 0.95rem;
    color: var(--ink);
    width: 100%;
}
.field input:focus, .form-grid input:focus, .contact-form input:focus, .contact-form textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(13, 108, 181, 0.1);
}
.field input:invalid:not(:placeholder-shown) {
    border-color: #f87171;
}
.result-legal { font-size: 0.8rem; color: var(--ink-muted); margin-top: 16px; line-height: 1.5; }

/* Upload zone */
.upload-zone {
    border: 2px dashed var(--line);
    border-radius: var(--radius-sm);
    background: var(--white);
    padding: 32px 24px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}
.upload-zone:hover, .upload-zone.dragover {
    border-color: var(--primary);
    background: var(--primary-light);
}
.upload-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}
.upload-icon {
    width: 56px;
    height: 56px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}
.upload-zone:hover .upload-icon {
    background: var(--primary);
    color: var(--white);
    transform: scale(1.05);
}
.upload-text strong { display: block; color: var(--ink); font-weight: 600; font-size: 0.95rem; margin-bottom: 4px; }
.upload-text span { display: block; font-size: 0.8rem; color: var(--ink-muted); }
.upload-list {
    list-style: none;
    margin-top: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.upload-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
}
.upload-list li .thumb {
    width: 40px;
    height: 40px;
    border-radius: 6px;
    background-size: cover;
    background-position: center;
    background-color: var(--bg-alt);
    flex-shrink: 0;
}
.upload-list li .info { flex: 1; min-width: 0; }
.upload-list li .info strong { display: block; color: var(--ink); font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.upload-list li .info span { color: var(--ink-muted); font-size: 0.75rem; }
.upload-list li button {
    background: transparent;
    color: var(--ink-muted);
    border: none;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    transition: var(--transition);
}
.upload-list li button:hover { background: #fee2e2; color: #dc2626; }

/* Consent checkbox */
.consent {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px 0;
    font-size: 0.85rem;
    color: var(--ink-soft);
    cursor: pointer;
    margin-bottom: 16px;
}
.consent input { width: 18px; height: 18px; accent-color: var(--primary); margin-top: 2px; cursor: pointer; }

.field-error {
    color: #dc2626;
    font-size: 0.8rem;
    margin-top: 6px;
    display: none;
}
.field.has-error input {
    border-color: #dc2626;
}
.field.has-error .field-error {
    display: block;
}

/* ---------- Realisations ---------- */
.gallery {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: 220px;
    gap: 16px;
}
.gallery-item {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
}
.gallery-item.large { grid-column: span 2; grid-row: span 2; }
.gallery-item.wide { grid-column: span 2; }
.gallery-img {
    position: absolute;
    inset: 0;
    background: var(--primary);
    transition: transform 0.6s ease;
}
.gallery-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(10, 31, 46, 0.85));
}
.gallery-item figcaption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 24px;
    color: var(--white);
    z-index: 1;
}
.gallery-item h4 { color: var(--white); margin: 8px 0 4px; }
.gallery-item figcaption p { font-size: 0.85rem; color: rgba(255, 255, 255, 0.8); }
.tag {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 100px;
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}
.gallery-item:hover .gallery-img { transform: scale(1.05); }

/* Variante : images affichées en entier avec cadre adapté à leur ratio */
.gallery-contain {
    grid-auto-rows: auto;
    align-items: start;
}
.gallery-contain .gallery-item {
    background: transparent;
    box-shadow: 0 6px 24px rgba(10, 31, 46, 0.12);
    border-radius: var(--radius);
    overflow: hidden;
    cursor: default;
}
.gallery-contain .gallery-item img {
    display: block;
    width: 100%;
    height: auto;
    transition: transform 0.6s ease;
}
.gallery-contain .gallery-item:hover img { transform: scale(1.04); }
.gallery-contain .gallery-item::after { display: none; }

/* ---------- Processus ---------- */
.processus { background: var(--bg-alt); }
.process-timeline {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
    position: relative;
}
.process-timeline::before {
    content: '';
    position: absolute;
    top: 32px;
    left: 10%;
    right: 10%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--line), transparent);
}
.process-step {
    text-align: left;
    position: relative;
    z-index: 1;
}
.process-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: var(--white);
    border: 1.5px solid var(--line);
    border-radius: 50%;
    font-family: 'Playfair Display', serif;
    font-size: 1.2rem;
    color: var(--primary);
    font-weight: 500;
    margin-bottom: 20px;
    transition: var(--transition);
}
.process-step:hover .process-num { border-color: var(--primary); background: var(--primary); color: var(--white); }
.process-step h3 { font-size: 1.1rem; margin-bottom: 8px; }
.process-step p { font-size: 0.9rem; color: var(--ink-muted); }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 80px; align-items: start; }
.contact-info h2 { margin-bottom: 16px; }
.contact-info > p { color: var(--ink-muted); margin-bottom: 40px; }
.contact-list { list-style: none; display: flex; flex-direction: column; gap: 24px; }
.contact-list li { display: flex; align-items: flex-start; gap: 16px; }
.contact-list svg { color: var(--primary); flex-shrink: 0; margin-top: 4px; }
.contact-list strong { display: block; color: var(--ink); font-weight: 600; margin-bottom: 2px; }
.contact-list strong a { color: inherit; text-decoration: none; transition: var(--transition); }
.contact-list strong a:hover { color: var(--primary); }
.contact-list span { font-size: 0.85rem; color: var(--ink-muted); }

.social-links {
    display: flex;
    gap: 12px;
    margin-top: 32px;
    flex-wrap: wrap;
}
.social-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: var(--white);
    border: 1.5px solid var(--line);
    border-radius: 100px;
    color: var(--ink);
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}
.social-btn svg { color: var(--primary); }
.social-btn:hover {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-color: transparent;
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(201, 169, 97, 0.3);
}
.social-btn:hover svg { color: var(--white); }
.contact-form {
    padding: 40px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
}
.contact-form h3 { margin-bottom: 16px; }
.contact-form textarea {
    width: 100%;
    margin-bottom: 16px;
    resize: vertical;
    font-family: inherit;
}
.contact-form .contact-intro { color: var(--ink-muted); font-size: 0.95rem; line-height: 1.6; margin-bottom: 24px; }
.contact-form .contact-legal { color: var(--ink-muted); font-size: 0.8rem; margin-top: 16px; text-align: center; }
.contact-form .btn-large { width: 100%; justify-content: center; }
.result-form .btn-large { width: 100%; justify-content: center; margin-top: 8px; }
.result-form .result-legal { margin-top: 16px; }

/* ---------- Footer ---------- */
.footer { background: var(--ink); color: rgba(255, 255, 255, 0.7); padding: 80px 0 40px; }
.footer h5 { color: var(--white); font-family: 'Inter', sans-serif; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 20px; font-weight: 600; }
.footer-top { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 60px; border-bottom: 1px solid rgba(255, 255, 255, 0.1); }
.footer-brand p { margin-top: 20px; font-size: 0.9rem; max-width: 320px; }
.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 20px;
}
.footer-contact a {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.75);
    font-size: 0.88rem;
    transition: var(--transition);
}
.footer-contact svg { color: var(--primary); flex-shrink: 0; }
.footer-contact a:hover { color: var(--primary); }
.footer-brand .nav-logo { color: var(--white); }
.footer-brand .logo-text em { color: var(--accent); }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 12px; font-size: 0.9rem; }
.footer-col a { transition: var(--transition); }
.footer-col a:hover { color: var(--white); }
.footer-bottom {
    padding-top: 32px;
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
    .hero-inner { grid-template-columns: 1fr; gap: 40px; }
    .hero-visual { height: 400px; max-width: 600px; }
    .coloris-grid { grid-template-columns: repeat(2, 1fr); }
    .nav-container { padding: 0 24px; }
}

@media (max-width: 900px) {
    /* --- Nav mobile --- */
    .nav-container { padding: 8px 20px; gap: 12px; }
    .nav-cta-desktop { display: none; }
    .nav-toggle { display: flex; }
    .logo-img { height: 72px; }
    .nav.scrolled .logo-img { height: 60px; }

    .nav-menu {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        width: min(320px, 85vw);
        flex-direction: column;
        justify-content: flex-start;
        align-items: stretch;
        gap: 0;
        padding: 96px 28px 32px;
        background: var(--bg, #fdfaf3);
        box-shadow: -8px 0 32px rgba(10, 31, 46, 0.16);
        transform: translateX(100%);
        transition: transform 0.32s ease;
        overflow-y: auto;
        z-index: 55;
        font-size: 1rem;
    }
    .nav-menu.open { transform: translateX(0); }
    .nav-menu li { list-style: none; }
    .nav-menu a {
        display: block;
        padding: 14px 4px;
        border-bottom: 1px solid rgba(10, 31, 46, 0.08);
        font-weight: 500;
    }
    .nav-menu-cta { display: block; margin-top: 12px; border: none; }
    .nav-menu-cta a { border: none; padding: 0; }
    .nav-menu-cta .nav-cta {
        display: inline-flex;
        margin-top: 8px;
        padding: 14px 28px;
        width: 100%;
        justify-content: center;
        text-align: center;
    }
    body.nav-open { overflow: hidden; }
    body.nav-open::after {
        content: '';
        position: fixed;
        inset: 0;
        background: rgba(10, 31, 46, 0.35);
        z-index: 50;
        animation: fadeIn 0.3s ease;
    }

    /* --- Sections / layout global --- */
    section { padding: 72px 0; }
    .section-head { margin-bottom: 44px; }
    .section-head p { font-size: 1rem; }
    .container { padding: 0 20px; }

    /* --- Hero --- */
    .hero { padding: 140px 20px 60px; min-height: auto; }
    .hero-inner { gap: 32px; }
    .hero-content { text-align: left; }
    .hero-actions { flex-direction: column; gap: 12px; margin-bottom: 48px; }
    .hero-actions .btn { width: 100%; justify-content: center; }
    .hero-stats { gap: 24px; padding-top: 32px; }
    .stat-num { font-size: 1.6rem; }
    .hero-visual { height: 320px; max-width: 100%; }
    .hero-badge { left: 0; padding: 12px 16px; }
    .hero-badge strong { font-size: 0.8rem; }
    .hero-badge span { font-size: 0.7rem; }

    /* --- Grids --- */
    .services-grid, .options-2, .form-grid, .dim-grid { grid-template-columns: 1fr; }
    .options-4 { grid-template-columns: repeat(2, 1fr); }
    .gallery { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .gallery-item.large, .gallery-item.wide { grid-column: span 2; grid-row: span 1; }
    .process-timeline { grid-template-columns: 1fr; gap: 24px; }
    .process-timeline::before { display: none; }
    .contact-grid { grid-template-columns: 1fr; gap: 40px; }
    .footer-top { grid-template-columns: 1fr 1fr; }
    .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }

    /* --- Cards --- */
    .service-media { height: 180px; }
    .coloris-img { height: 180px; }
    .coloris-card figcaption { padding: 16px 18px; gap: 12px; }
    .coloris-swatch { width: 36px; height: 36px; }

    /* --- Tarifs --- */
    .tarif-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .tarif-card { padding: 20px; }
    .tarif-dim { font-size: 1.15rem; }
    .tarif-price strong { font-size: 1.6rem; }
    .tarifs-included { grid-template-columns: 1fr; padding: 24px; }
    .tarifs-cta { flex-direction: column; text-align: center; padding: 24px; }
    .materiel-grid { grid-template-columns: 1fr; }
    .tarif-tab { padding: 10px 14px; font-size: 0.8rem; }
    .tarifs-tabs { padding: 4px; flex-wrap: wrap; gap: 4px; }


    /* --- Calc form (legacy, still may render) --- */
    .calc-form { padding: 32px 20px; }
    .calc-progress { padding: 24px 20px 0; }
    .calc-steps { font-size: 0.75rem; }
    .calc-step i { width: 22px; height: 22px; }
}

@media (max-width: 600px) {
    section { padding: 60px 0; }
    .section-head { margin-bottom: 36px; }
    .hero { padding: 130px 16px 48px; }
    .hero-tag { font-size: 0.72rem; padding: 6px 12px; margin-bottom: 20px; }
    .hero-subtitle { font-size: 1rem; margin-bottom: 28px; }
    .hero-stats { gap: 20px; }
    .stat-num { font-size: 1.4rem; }
    .stat-label { font-size: 0.78rem; }
    .hero-visual { height: 260px; }
    .hero-img-main { width: 82%; height: 68%; }
    .hero-img-secondary { width: 58%; height: 46%; border-width: 4px; }

    .container { padding: 0 16px; }
    .coloris-grid { grid-template-columns: 1fr; gap: 14px; }
    .coloris-img { height: 140px; }
    .gallery-contain { grid-auto-rows: auto; }
    .gallery { grid-template-columns: 1fr; }
    .gallery-item.large, .gallery-item.wide { grid-column: span 1; }
    .tarif-grid { grid-template-columns: 1fr; }
    .tarif-tab { flex: 1 1 calc(50% - 4px); font-size: 0.75rem; padding: 8px 10px; }
    .tarif-tab svg { display: none; }
    .options-3, .options-4 { grid-template-columns: 1fr; }
    .calc-steps { display: none; }
    .calc-actions { flex-direction: column-reverse; gap: 12px; }
    .calc-actions .btn { width: 100%; justify-content: center; }
    .footer-top { grid-template-columns: 1fr; gap: 32px; }
    .btn, .btn-large { font-size: 0.95rem; padding: 14px 24px; }
    .btn-large { padding: 16px 28px; }
}

@media (max-width: 380px) {
    .hero { padding: 120px 14px 40px; }
    .hero-badge { padding: 10px 14px; gap: 8px; }
    .hero-badge strong { font-size: 0.75rem; }
    .hero-visual { height: 220px; }
    .container { padding: 0 14px; }
    .logo-img { height: 60px; }
    .nav.scrolled .logo-img { height: 52px; }
    .hero-stats { flex-direction: column; gap: 16px; align-items: flex-start; }
}