@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&display=swap');

:root {
    --bg: #0b0805;
    --bg-2: #120d08;
    --surface: #1a130d;
    --surface-2: #231a12;
    --line: rgba(255, 255, 255, .09);
    --text: #f5efe8;
    --muted: #b3a898;
    --accent: #fa8305;
    --accent-2: #ffb347;
    --accent-dark: #c4510a;
    --radius: 18px;
    --shadow: 0 24px 60px -20px rgba(0, 0, 0, .7);
    --ease: cubic-bezier(.2, .7, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }

html { scroll-behavior: smooth; scroll-padding-top: 90px; }

body {
    font-family: "Poppins", system-ui, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: 0; }

.container { width: min(1200px, 100% - 48px); margin-inline: auto; }

h1, h2, h3, h4 { line-height: 1.15; letter-spacing: -.02em; }

.eyebrow {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 16px;
}

.grad {
    background: linear-gradient(100deg, var(--accent) 0%, var(--accent-2) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* ============ Buttons ============ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border: 1px solid transparent;
    border-radius: 999px;
    padding: 12px 24px;
    font-weight: 500;
    font-size: 15px;
    transition: transform .3s var(--ease), background .3s, box-shadow .3s, border-color .3s, color .3s;
    white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn-lg { padding: 16px 32px; font-size: 16px; }
.btn-block { width: 100%; }

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: #fff;
    box-shadow: 0 10px 30px -10px rgba(250, 131, 5, .7);
}
.btn-primary:hover { box-shadow: 0 16px 36px -10px rgba(250, 131, 5, .9); }

.btn-ghost { border-color: var(--line); background: rgba(255, 255, 255, .04); }
.btn-ghost:hover { border-color: var(--accent); background: rgba(250, 131, 5, .1); }

.btn-dark { background: var(--surface-2); border-color: var(--line); }
.btn-dark:hover { border-color: var(--accent); }

.btn-light { background: #fff; color: #1a0f05; }
.btn-light svg { width: 20px; height: 20px; fill: currentColor; }
.btn-outline-light { border-color: rgba(255, 255, 255, .6); color: #fff; }
.btn-outline-light:hover { background: rgba(255, 255, 255, .12); }

:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 3px; }

/* ============ Header ============ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    padding: 22px 0;
    transition: padding .3s, background .3s, box-shadow .3s, backdrop-filter .3s;
}
.site-header.scrolled {
    padding: 12px 0;
    background: rgba(11, 8, 5, .8);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 1px 0 var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }

.logo { display: inline-flex; align-items: center; flex: none; }
.logo img { height: 38px; width: auto; display: block; }
.site-footer .logo img { height: 42px; }

.nav { display: flex; align-items: center; gap: 36px; }
.nav ul { display: flex; gap: 32px; }
.nav ul a { position: relative; font-size: 15px; color: var(--muted); padding: 6px 0; transition: color .25s; }
.nav ul a:hover, .nav ul a.is-active { color: var(--text); }
.nav ul a::after {
    content: ""; position: absolute; left: 0; bottom: -2px; height: 3px; width: 100%;
    background: var(--accent); border-radius: 3px;
    transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease);
}
.nav ul a:hover::after, .nav ul a.is-active::after { transform: scaleX(1); }

.burger { display: none; width: 44px; height: 44px; background: none; border: 1px solid var(--line); border-radius: 12px; position: relative; }
.burger span { position: absolute; left: 12px; right: 12px; height: 2px; background: var(--text); border-radius: 2px; transition: transform .3s, opacity .3s, top .3s; }
.burger span:nth-child(1) { top: 14px; }
.burger span:nth-child(2) { top: 21px; }
.burger span:nth-child(3) { top: 28px; }
.burger[aria-expanded="true"] span:nth-child(1) { top: 21px; transform: rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { top: 21px; transform: rotate(-45deg); }

/* Language switcher */
.lang { display: inline-flex; padding: 3px; border-radius: 999px; border: 1px solid var(--line); background: rgba(255, 255, 255, .04); }
.lang button {
    padding: 6px 12px; border-radius: 999px; font-size: 12px; font-weight: 600; letter-spacing: .08em; color: var(--muted);
    transition: background .3s, color .3s;
}
.lang button:hover { color: var(--text); }
.lang button[aria-pressed="true"] { background: var(--accent); color: #fff; }

/* ============ Hero ============ */
.hero {
    position: relative;
    padding: 40px 0 110px;
    background:
        radial-gradient(900px 500px at 85% 20%, rgba(250, 131, 5, .16), transparent 65%),
        linear-gradient(180deg, var(--bg) 0%, #150d06 100%);
    overflow: hidden;
}
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; align-items: center; gap: 60px; }
.hero-info h1 { font-size: clamp(38px, 5.2vw, 66px); font-weight: 700; margin-bottom: 26px; }
.lead { font-size: 17px; color: var(--muted); max-width: 580px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 36px 0 34px; }

.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chips li {
    font-size: 13px; padding: 7px 16px; border-radius: 999px;
    border: 1px solid var(--line); background: rgba(255, 255, 255, .04); color: var(--muted);
    position: relative; padding-left: 30px;
}
.chips li::before { content: ""; position: absolute; left: 14px; top: 50%; width: 7px; height: 7px; margin-top: -3.5px; border-radius: 50%; background: var(--accent); }

.hero-visual { position: relative; display: flex; justify-content: center; }
.hero-visual img {
    position: relative; z-index: 1;
    width: min(420px, 80%);
    filter: drop-shadow(0 40px 50px rgba(0, 0, 0, .7));
    animation: float 7s ease-in-out infinite;
}
.glow {
    position: absolute; inset: 5% 0 0; margin: auto;
    width: 90%; aspect-ratio: 1;
    background: radial-gradient(circle, rgba(250, 131, 5, .55) 0%, rgba(250, 131, 5, .12) 45%, transparent 70%);
    filter: blur(30px);
    border-radius: 50%;
}
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }

/* ============ Sections ============ */
.section { padding: 110px 0; }
.section-alt { background: var(--bg-2); border-block: 1px solid var(--line); }

.section-head { margin-bottom: 56px; }
.section-head h2 { font-size: clamp(28px, 3.4vw, 42px); font-weight: 700; }
.section-head.center { text-align: center; max-width: 820px; margin-inline: auto; margin-bottom: 56px; }
.section-head.split { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; flex-wrap: wrap; }

/* Products */
.products { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.product {
    text-align: left; padding: 0; overflow: hidden;
    border-radius: var(--radius); border: 1px solid var(--line);
    background: var(--surface);
    transition: transform .4s var(--ease), border-color .3s, box-shadow .4s;
}
.product:hover { transform: translateY(-8px); border-color: rgba(250, 131, 5, .55); box-shadow: 0 30px 50px -25px rgba(250, 131, 5, .35); }
.product-img {
    aspect-ratio: 4 / 3; display: grid; place-items: center; padding: 8px;
    background: radial-gradient(circle at 50% 45%, #5a4a3c 0%, #2b2118 65%, #1a130d 100%);
}
.product-img img { width: 100%; height: 100%; object-fit: contain; transition: transform .6s var(--ease); }
.product:hover .product-img img { transform: scale(1.07); }
.product-body { padding: 22px 24px 26px; }
.product-body h3 { font-size: 20px; margin-bottom: 10px; }
.more { font-size: 14px; color: var(--accent); display: inline-flex; gap: 8px; align-items: center; }
.more i { font-style: normal; transition: transform .3s var(--ease); }
.product:hover .more i { transform: translateX(6px); }

/* Installation */
.install-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; }
.install-media { position: relative; }
.install-media img { width: 100%; border-radius: 24px; box-shadow: var(--shadow); border: 1px solid var(--line); }
.install-media::before {
    content: ""; position: absolute; inset: 20px -20px -20px 20px; border-radius: 24px;
    border: 2px solid rgba(250, 131, 5, .45); z-index: -1;
}
.badge {
    position: absolute; left: -22px; bottom: 28px; padding: 16px 22px; border-radius: 16px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    box-shadow: 0 20px 40px -15px rgba(250, 131, 5, .7);
    display: flex; flex-direction: column; line-height: 1.3;
}
.badge strong { font-size: 18px; }
.badge span { font-size: 13px; opacity: .9; }

.install-text h2 { font-size: clamp(28px, 3.2vw, 40px); margin-bottom: 20px; }
.install-text > p { color: var(--muted); margin-bottom: 26px; }
.checks { display: grid; gap: 14px; margin-bottom: 34px; }
.checks li { position: relative; padding-left: 36px; }
.checks li::before {
    content: ""; position: absolute; left: 0; top: 2px; width: 22px; height: 22px; border-radius: 50%;
    background: rgba(250, 131, 5, .15) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fa8305' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12.5l4 4 8-9'/%3E%3C/svg%3E") center / 14px no-repeat;
}

/* Steps */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: s; }
.steps li {
    position: relative; padding: 32px 26px; border-radius: var(--radius);
    background: var(--surface); border: 1px solid var(--line);
}
.steps li:not(:last-child)::after {
    content: ""; position: absolute; top: 50px; right: -23px; width: 24px; height: 2px;
    background: repeating-linear-gradient(90deg, var(--accent) 0 4px, transparent 4px 8px);
}
.num { display: block; font-size: 44px; font-weight: 800; line-height: 1; margin-bottom: 18px; color: transparent; -webkit-text-stroke: 1.5px var(--accent); }
.steps h3 { font-size: 19px; margin-bottom: 8px; }
.steps p { color: var(--muted); font-size: 15px; }

/* CTA */
.cta {
    display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap;
    padding: 64px 60px; border-radius: 28px; position: relative; overflow: hidden;
    background: linear-gradient(120deg, #c4510a 0%, #fa8305 70%, #ffb347 100%);
    box-shadow: 0 40px 80px -30px rgba(250, 131, 5, .5);
}
.cta::before, .cta::after {
    content: ""; position: absolute; border: 2px solid rgba(255, 255, 255, .2); border-radius: 50%;
}
.cta::before { width: 340px; height: 340px; right: -90px; top: -150px; }
.cta::after { width: 220px; height: 220px; right: 120px; bottom: -150px; }
.cta > * { position: relative; z-index: 1; }
.cta h2 { font-size: clamp(26px, 3vw, 38px); margin-bottom: 8px; color: #fff; }
.cta p { color: rgba(255, 255, 255, .9); }
.cta-actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* ============ Footer ============ */
.site-footer { background: #000; padding: 70px 0 0; border-top: 1px solid var(--line); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1.2fr; gap: 50px; padding-bottom: 50px; }
.footer-grid p { color: var(--muted); margin-top: 18px; max-width: 360px; font-size: 15px; }
.site-footer h4 { font-size: 16px; margin-bottom: 18px; }
.site-footer li { margin-bottom: 10px; color: var(--muted); font-size: 15px; }
.site-footer li a:hover, .link-btn:hover { color: var(--accent); }
.link-btn { background: none; border: 0; color: var(--accent); padding: 0; }
.footer-bottom { border-top: 1px solid var(--line); padding: 24px 0; text-align: center; color: var(--muted); font-size: 14px; }

/* ============ Floating button ============ */
.fab {
    position: fixed; right: 22px; bottom: 22px; z-index: 40;
    display: inline-flex; align-items: center; gap: 10px;
    padding: 14px 22px; border: 0; border-radius: 999px; font-weight: 500;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    box-shadow: 0 16px 36px -10px rgba(250, 131, 5, .8);
    transition: transform .3s var(--ease), opacity .3s;
}
.fab:hover { transform: translateY(-3px) scale(1.04); }
.fab svg { width: 20px; height: 20px; fill: none; stroke: #fff; stroke-width: 2; stroke-linejoin: round; }


/* ============ Why us ============ */
.section-head .sub { color: var(--muted); margin-top: 14px; font-size: 17px; }
.why { display: flex; flex-wrap: wrap; justify-content: center; gap: 22px; }
.why-card {
    flex: 0 1 calc(33.333% - 15px); min-width: 280px; text-align: center;
    padding: 36px 30px 34px; border-radius: var(--radius);
    background: linear-gradient(160deg, var(--surface), var(--bg-2)); border: 1px solid var(--line);
    transition: transform .4s var(--ease), border-color .3s, box-shadow .4s;
}
.why-card:hover { transform: translateY(-6px); border-color: rgba(250, 131, 5, .5); box-shadow: 0 30px 50px -30px rgba(250, 131, 5, .4); }
.why-ico {
    width: 54px; height: 54px; margin: 0 auto 22px; border-radius: 15px; display: grid; place-items: center;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark)); box-shadow: 0 12px 24px -10px rgba(250, 131, 5, .7);
}
.why-ico svg { width: 26px; height: 26px; fill: none; stroke: #fff; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.why-card h3 { font-size: 19px; margin-bottom: 12px; line-height: 1.25; }
.why-card p { color: var(--muted); font-size: 15px; }

/* ============ Fenêtres : styles + couleurs ============ */
.chips-filter { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-bottom: 28px; }
.fchip {
    padding: 9px 20px; border-radius: 999px; font-size: 14px; font-weight: 500;
    border: 1px solid var(--line); background: rgba(255, 255, 255, .03); color: var(--muted);
    transition: all .3s var(--ease);
}
.fchip:hover { color: var(--text); border-color: rgba(250, 131, 5, .5); }
.fchip[aria-pressed="true"] { background: linear-gradient(135deg, var(--accent), var(--accent-dark)); border-color: transparent; color: #fff; box-shadow: 0 10px 24px -10px rgba(250, 131, 5, .8); }

.style-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 176px)); justify-content: center; gap: 14px; margin-bottom: 36px; }
.style-btn {
    display: flex; flex-direction: column; align-items: center; gap: 10px; text-align: center;
    padding: 18px 12px 16px; border-radius: 16px; border: 1px solid var(--line); background: var(--surface);
    transition: transform .35s var(--ease), border-color .3s, background .3s, box-shadow .35s;
}
.style-btn:hover { transform: translateY(-4px); border-color: rgba(250, 131, 5, .5); }
.style-btn svg { width: 78px; height: 78px; overflow: visible; --c: #cfc8bc; --hi: #f0ebe2; --lo: #7c746a; }
.style-btn .nm { font-weight: 600; font-size: 14px; line-height: 1.25; }
.style-btn .go { font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); }
.style-btn[aria-pressed="true"] {
    border-color: var(--accent); background: linear-gradient(180deg, rgba(250, 131, 5, .16), var(--surface));
    box-shadow: 0 18px 36px -20px rgba(250, 131, 5, .8);
}
.style-btn[aria-pressed="true"] .go { color: var(--accent-2); }

.cfg {
    border-radius: 28px; border: 1px solid var(--line); overflow: hidden;
    background: radial-gradient(700px 380px at 82% 0%, rgba(250, 131, 5, .13), transparent 70%), linear-gradient(180deg, #17110b, #100b07);
    box-shadow: var(--shadow);
}
.cfg-top { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; align-items: center; padding: 56px 56px 30px; }
.cfg-text h3 { font-size: clamp(30px, 3.6vw, 46px); font-weight: 700; margin-bottom: 8px; color: var(--accent-2); }
.cfg-text .eyebrow { font-size: 12px; margin-bottom: 14px; }
.rule { display: block; width: 56px; height: 3px; border-radius: 3px; background: var(--accent); margin: 18px 0 20px; }
.cfg-text p { color: var(--muted); max-width: 460px; }
.cfg-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }

.cfg-preview { display: flex; flex-direction: column; align-items: center; gap: 18px; }
.win-wrap { width: min(380px, 100%); aspect-ratio: 1; display: grid; place-items: center; }
.win-wrap svg { width: 100%; height: 100%; overflow: visible; filter: drop-shadow(0 26px 30px rgba(0, 0, 0, .55)); animation: swap .45s var(--ease); }
@keyframes swap { from { opacity: 0; transform: scale(.94); } to { opacity: 1; transform: none; } }

.win .c { fill: var(--c); stroke: var(--lo); stroke-width: 1.5; transition: fill .5s, stroke .5s; }
.win .hi { fill: none; stroke: var(--hi); stroke-width: 1.6; transition: stroke .5s; }
.win .lo { stroke: var(--lo); stroke-width: 1.5; transition: stroke .5s; }
.win .hd { fill: var(--hi); stroke: var(--lo); stroke-width: 1; transition: fill .5s, stroke .5s; }
.style-btn .win .c, .style-btn .win .hi, .style-btn .win .lo, .style-btn .win .hd { transition: none; }

.state-btns { display: flex; gap: 8px; }
.sbtn {
    padding: 9px 20px; font-size: 12px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase;
    border: 1px solid var(--line); border-radius: 6px; background: rgba(0, 0, 0, .3); color: var(--text);
    transition: all .3s;
}
.sbtn:hover { border-color: var(--accent); }
.sbtn[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: #fff; }

.cfg-colors { padding: 10px 56px 50px; }
.colors-head { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 18px; margin-bottom: 20px; }
.colors-head .label { font-size: 12px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--accent); }
.ctabs { display: flex; flex-wrap: wrap; gap: 8px; }
.ctab {
    padding: 7px 18px; border-radius: 999px; font-size: 12px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase;
    border: 1px solid var(--line); background: rgba(0, 0, 0, .35); color: var(--text); transition: all .3s;
}
.ctab:hover { border-color: var(--accent); }
.ctab[aria-selected="true"] { background: var(--accent); border-color: var(--accent); color: #fff; }
.picked { margin-left: auto; font-size: 14px; color: var(--muted); }
.picked b { color: var(--text); font-weight: 600; }

.swatches { display: grid; grid-template-columns: repeat(auto-fill, minmax(118px, 1fr)); gap: 10px; }
.sw {
    position: relative; height: 54px; padding: 6px 8px; border-radius: 8px; font-size: 12px; font-weight: 600; line-height: 1.2;
    display: grid; place-items: center; text-align: center;
    border: 2px solid rgba(255, 255, 255, .08); box-shadow: inset 0 0 0 1px rgba(0, 0, 0, .25);
    transition: transform .25s var(--ease), border-color .25s, box-shadow .25s;
}
.sw:hover { transform: translateY(-3px); }
.sw[aria-pressed="true"] { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(250, 131, 5, .35); }
.swatches.fade .sw { animation: swIn .4s var(--ease) both; }
@keyframes swIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

a.product { display: block; }

/* ============ Modal (soumission en 4 étapes) ============ */
.modal {
    border: 0; padding: 0; background: transparent; color: var(--text);
    width: min(500px, 100% - 24px); max-height: calc(100dvh - 24px);
    margin: auto; overflow: visible;
}
.modal::backdrop { background: rgba(5, 3, 1, .78); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.modal[open] { animation: pop .4s var(--ease); }
.modal[open]::backdrop { animation: fade .3s ease; }
@keyframes pop { from { opacity: 0; transform: translateY(24px) scale(.96); } to { opacity: 1; transform: none; } }
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }

.quote-box {
    position: relative; padding: 36px 34px 28px; border-radius: 24px;
    background: radial-gradient(420px 220px at 0% 0%, rgba(250, 131, 5, .18), transparent 70%), var(--surface);
    border: 1px solid var(--line); box-shadow: 0 50px 100px -20px #000;
    max-height: calc(100dvh - 24px); overflow-y: auto;
}
.modal-close {
    position: absolute; top: 14px; right: 14px; z-index: 2; width: 38px; height: 38px; border-radius: 50%;
    display: grid; place-items: center; background: rgba(255, 255, 255, .08); border: 1px solid var(--line);
    transition: background .3s, transform .3s;
}
.modal-close:hover { background: var(--accent); transform: rotate(90deg); }
.modal-close svg { width: 16px; height: 16px; stroke: #fff; stroke-width: 2.2; fill: none; stroke-linecap: round; }

.quote-box .eyebrow { font-size: 12px; margin-bottom: 12px; }
.quote-box h2 { font-size: 26px; font-weight: 700; margin-bottom: 10px; padding-right: 34px; }
.muted { color: var(--muted); font-size: 15px; }

.q-progress { margin: 22px 0 18px; }
.q-progress span { display: block; font-size: 12px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.bar { height: 6px; border-radius: 6px; background: rgba(255, 255, 255, .1); overflow: hidden; }
.bar i { display: block; height: 100%; width: 25%; border-radius: 6px; background: linear-gradient(90deg, var(--accent-dark), var(--accent-2)); transition: width .5s var(--ease); }

.q-step { display: none; border: 0; min-width: 0; }
.q-step.active { display: block; animation: swap .4s var(--ease); }
.q-step legend { font-size: 20px; font-weight: 700; letter-spacing: -.01em; margin-bottom: 14px; padding: 0; }
.opt-tag { font-weight: 500; font-size: 15px; color: var(--muted); }
.q-label { display: block; font-size: 17px; font-weight: 700; margin: 20px 0 10px; line-height: 1.3; }

.opts { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.opt {
    padding: 14px 14px; border-radius: 12px; font-weight: 600; font-size: 15px; text-align: center; line-height: 1.25;
    border: 1px solid var(--line); background: var(--bg-2);
    transition: background .25s, border-color .25s, transform .25s var(--ease), color .25s;
}
.opt.wide { grid-column: 1 / -1; }
.opt.icon { display: flex; align-items: center; gap: 10px; text-align: left; }
.opt.icon svg { width: 24px; height: 24px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; opacity: .85; }
.opt:hover { border-color: rgba(250, 131, 5, .6); transform: translateY(-1px); }
.opt[aria-pressed="true"] { background: linear-gradient(135deg, var(--accent), var(--accent-dark)); border-color: transparent; color: #fff; }

.hint { color: var(--muted); font-size: 14px; margin-top: 14px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.field { display: grid; gap: 7px; }
.field input, .field textarea {
    width: 100%; font: inherit; color: var(--text);
    background: var(--bg-2); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px;
    transition: border-color .25s, box-shadow .25s;
}
.field textarea { resize: vertical; min-height: 130px; }
.field input::placeholder, .field textarea::placeholder { color: #6d6256; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px rgba(250, 131, 5, .18); }
.field.invalid input { border-color: #ef4444; }

.q-summary { margin-top: 14px; padding: 12px 16px; border-radius: 12px; font-size: 14px; background: rgba(250, 131, 5, .1); border: 1px solid rgba(250, 131, 5, .3); }
.form-error { color: #ff8a8a; font-size: 14px; margin-top: 14px; }
.err-link { color: var(--accent-2); text-decoration: underline; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.btn:disabled { opacity: .6; cursor: progress; transform: none; }

.q-actions { display: flex; gap: 10px; margin-top: 22px; }
.q-actions .btn { padding: 15px 22px; }
.q-actions .btn-primary { flex: 1; }
.btn-back { border-color: var(--line); background: var(--bg-2); }
.btn-back:hover { border-color: var(--accent); }

.q-trust { margin-top: 22px; display: grid; gap: 8px; font-size: 14px; font-weight: 600; }
.q-trust li { position: relative; padding-left: 20px; }
.q-trust li::before { content: ""; position: absolute; left: 0; top: 8px; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.q-call { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); display: grid; gap: 4px; font-size: 14px; color: var(--muted); }
.q-call a { color: var(--text); font-weight: 600; }
.q-call a:hover { color: var(--accent); }

.q-done { text-align: center; padding: 30px 6px 10px; display: grid; gap: 14px; justify-items: center; }
.q-done .ok { width: 72px; height: 72px; border-radius: 50%; display: grid; place-items: center; background: rgba(250, 131, 5, .15); }
.q-done .ok svg { width: 36px; height: 36px; stroke: var(--accent); stroke-width: 2.6; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.q-done h3 { font-size: 26px; }
.q-done p { color: var(--muted); }

/* ============ Reveal ============ */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s var(--ease), transform .8s var(--ease); transition-delay: var(--d, 0s); }
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .reveal { opacity: 1; transform: none; transition: none; }
    .hero-visual img { animation: none; }
    .modal[open], .modal[open]::backdrop { animation: none; }
}

/* ============ Responsive ============ */
@media (max-width: 1100px) {
    .products, .steps { grid-template-columns: repeat(2, 1fr); }
    .steps li::after { display: none; }
    .hero-grid { gap: 30px; }
}

@media (max-width: 1100px) {
    .nav { gap: 24px; }
    .nav ul { gap: 22px; }
}

@media (max-width: 900px) {
    .cfg-top { grid-template-columns: 1fr; padding: 36px 26px 20px; }
    .cfg-preview { order: -1; }
    .cfg-colors { padding: 10px 26px 36px; }
    .picked { margin-left: 0; width: 100%; }
    .why-card { flex-basis: calc(50% - 11px); }

    .burger { display: block; }
    .nav {
        position: fixed; inset: 0 0 auto 0; top: 0; padding: 100px 24px 32px;
        flex-direction: column; align-items: stretch; gap: 24px;
        background: rgba(11, 8, 5, .97); backdrop-filter: blur(14px);
        transform: translateY(-100%); transition: transform .4s var(--ease); z-index: -1;
        border-bottom: 1px solid var(--line);
    }
    .nav.open { transform: none; }
    .nav ul { flex-direction: column; gap: 4px; }
    .lang { align-self: flex-start; }
    .nav ul a { display: block; font-size: 18px; padding: 12px 0; color: var(--text); }
    .nav ul a::after { display: none; }

    .hero { padding: 20px 0 80px; }
    .hero-grid, .install-grid { grid-template-columns: 1fr; }
    .hero-visual { order: -1; }
    .hero-visual img { width: min(280px, 60%); }
    .install-grid { gap: 50px; }
    .install-media::before { inset: 14px -10px -14px 10px; }
    .badge { left: 12px; }
    .section { padding: 80px 0; }
    .footer-grid { grid-template-columns: 1fr; gap: 36px; }
    .cta { padding: 44px 30px; }
}

@media (max-width: 560px) {
    .why-card { flex-basis: 100%; min-width: 0; }
    .style-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .style-btn svg { width: 64px; height: 64px; }
    .swatches { grid-template-columns: repeat(2, 1fr); }
    .quote-box { padding: 30px 20px 22px; }
    .quote-box h2 { font-size: 22px; }
    .q-actions .btn { padding: 14px 16px; }
    .container { width: calc(100% - 32px); }
    .products, .steps { grid-template-columns: 1fr; }
    .row { grid-template-columns: 1fr; }
    .hero-actions .btn, .cta-actions .btn { width: 100%; }
    .fab span { display: none; }
    .fab { padding: 16px; }
    .logo img { height: 32px; }
}