:root {
  --bg: #0b0b0c;
  --bg-alt: #121214;
  --card: #18181b;
  --line: #2a2a2f;
  --text: #f4f4f5;
  --muted: #a1a1aa;
  --accent: #e1251b;
  --accent-hover: #ff3b2f;
  --radius: 14px;
  --font-display: "Archivo", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 var(--font-body);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.1; margin: 0 0 .5em; letter-spacing: -.02em; }
h1 { font-size: clamp(2.2rem, 6vw, 4rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 4vw, 2.4rem); font-weight: 800; }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; }

.wrap { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 16px; }
.narrow { max-width: 760px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  padding: .85em 1.4em; border: 0; border-radius: 999px;
  background: var(--accent); color: #fff; font: 600 1rem var(--font-body);
  text-decoration: none; cursor: pointer; transition: background .15s, transform .15s;
}
.btn:hover { background: var(--accent-hover); }
.btn:active { transform: scale(.98); }
.btn-ghost { background: transparent; box-shadow: inset 0 0 0 1.5px var(--line); }
.btn-ghost:hover { background: var(--card); }
.btn-small { padding: .5em 1.1em; font-size: .9rem; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(11, 11, 12, .85); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand img { height: 24px; width: auto; }
.brand .wordmark { height: 16px; }
.nav { display: flex; align-items: center; gap: 1.25rem; }
.nav a:not(.btn) { color: var(--muted); text-decoration: none; font-size: .95rem; }
.nav a:not(.btn):hover { color: var(--text); }
@media (max-width: 560px) { .nav a:not(.btn) { display: none; } }

/* Hero */
.hero { padding: 48px 0 32px; background: radial-gradient(ellipse at 80% 40%, rgba(225, 37, 27, .22), transparent 60%); }
.hero-inner { display: grid; gap: 32px; align-items: center; }
@media (min-width: 860px) { .hero-inner { grid-template-columns: 1.05fr 1fr; } .hero { padding: 80px 0 56px; } }
.eyebrow { color: var(--accent); font-weight: 600; text-transform: uppercase; letter-spacing: .12em; font-size: .8rem; }
.lede { color: var(--muted); font-size: 1.1rem; max-width: 34em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 1.5em; }
.hero-note { color: var(--muted); font-size: .9rem; margin-top: 1em; }
.muted { color: var(--muted); margin: 0; }
.hero-media img { border-radius: 20px; box-shadow: 0 30px 80px rgba(225, 37, 27, .18); }

/* Stats */
.stats { border-block: 1px solid var(--line); background: var(--bg-alt); }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.stat { padding: 28px 16px; display: flex; flex-direction: column; gap: 4px; }
.stat strong { font: 800 1.9rem var(--font-display); color: var(--text); }
.stat span { color: var(--muted); font-size: .95rem; }

/* Sections */
.section { padding: 64px 0; }
.section-alt { background: var(--bg-alt); border-block: 1px solid var(--line); }

/* Products */
.product-list { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); }
.product { overflow: hidden; display: flex; flex-direction: column; }
.product-img { aspect-ratio: 1; background: var(--bg-alt); display: grid; place-items: center; color: var(--muted); }
.product-img img { width: 100%; height: 100%; object-fit: cover; }
.product-body { padding: 20px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.product-body p { color: var(--muted); margin: 0; }
.product-meta { display: flex; justify-content: space-between; align-items: center; margin-top: auto; padding-top: 12px; }
.price { font: 800 1.4rem var(--font-display); }
.price small { font: 500 .8rem var(--font-body); color: var(--muted); }
.placeholder-mark { width: 30% !important; height: auto !important; object-fit: contain !important; opacity: .15; }
.badge { display: inline-block; padding: .2em .7em; border-radius: 999px; background: var(--line); color: var(--muted); font-size: .8rem; font-weight: 600; }
.dots { display: flex; gap: 6px; }
.dots span { width: 16px; height: 16px; border-radius: 50%; border: 1px solid #555; }

/* Install */
.install { display: grid; gap: 32px; }
@media (min-width: 860px) { .install { grid-template-columns: 1fr 1fr; align-items: center; } }
.install p { color: var(--muted); }
.steps { list-style: none; margin: 0; padding: 0; counter-reset: s; display: grid; gap: 12px; }
.steps li { counter-increment: s; display: flex; gap: 14px; align-items: center; padding: 18px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); }
.steps li::before { content: counter(s); flex: none; width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; background: var(--accent); font-weight: 700; }

/* Order */
.order { display: grid; gap: 32px; }
@media (min-width: 900px) { .order { grid-template-columns: 1fr 1.15fr; align-items: start; } .order-intro { position: sticky; top: 90px; } }
.order-intro p { color: var(--muted); }
.ticks { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.ticks li::before { content: "✓"; color: var(--accent); font-weight: 700; margin-right: .6em; }

.form, .form form { display: grid; gap: 18px; }
.form { padding: 20px; }
@media (min-width: 560px) { .form { padding: 28px; } }
fieldset { border: 0; margin: 0; padding: 0; min-width: 0; }
legend, .field > span { display: block; font-weight: 600; font-size: .9rem; margin-bottom: 8px; padding: 0; }
.field small { color: var(--muted); font-weight: 400; }
.row-2 { display: grid; gap: 18px; }
@media (min-width: 560px) { .row-2 { grid-template-columns: 1fr 1fr; } }
input, select, textarea {
  width: 100%; padding: .75em .9em; font: inherit; color: var(--text);
  background: var(--bg); border: 1px solid var(--line); border-radius: 10px;
}
input:focus, select:focus, textarea:focus, button:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
textarea { resize: vertical; }
.invalid { border-color: var(--accent); }

.swatches, .pills { display: flex; flex-wrap: wrap; gap: 10px; }
.swatch, .pill { position: relative; }
.swatch input, .pill input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.swatch label, .pill label {
  display: flex; align-items: center; gap: .55em; padding: .55em 1em; cursor: pointer;
  border: 1.5px solid var(--line); border-radius: 999px; font-size: .95rem; user-select: none;
}
.swatch i { width: 18px; height: 18px; border-radius: 50%; border: 1px solid #555; }
.swatch input:checked + label, .pill input:checked + label { border-color: var(--accent); background: rgba(225, 37, 27, .12); }
.swatch input:focus-visible + label, .pill input:focus-visible + label { outline: 2px solid var(--accent); outline-offset: 2px; }

.qty { display: flex; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; width: max-content; }
.qty input { width: 56px; text-align: center; border: 0; border-radius: 0; -moz-appearance: textfield; }
.qty input::-webkit-inner-spin-button, .qty input::-webkit-outer-spin-button { -webkit-appearance: none; }
.qty button { width: 44px; border: 0; background: var(--bg-alt); color: var(--text); font-size: 1.2rem; cursor: pointer; }

.summary { display: grid; gap: 6px; padding: 16px; background: var(--bg); border-radius: 10px; border: 1px solid var(--line); }
.summary div { display: flex; justify-content: space-between; color: var(--muted); }
.summary .total { color: var(--text); font: 800 1.2rem var(--font-display); padding-top: 8px; border-top: 1px solid var(--line); margin-top: 4px; }
.note { font-size: .82rem; color: var(--muted); margin: 4px 0 0; }

.check { display: flex; gap: 10px; align-items: flex-start; font-size: .92rem; color: var(--muted); }
.check input { width: 18px; height: 18px; margin-top: 3px; flex: none; accent-color: var(--accent); }
.error { color: #ff6b62; margin: 0; font-size: .92rem; }

/* FAQ */
details { border-bottom: 1px solid var(--line); padding: 16px 0; }
summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 1em; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--accent); font-size: 1.3rem; line-height: 1; }
details[open] summary::after { content: "−"; }
details p { color: var(--muted); margin: 10px 0 0; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 28px 0 40px; color: var(--muted); font-size: .9rem; }
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }
.footer-inner nav { display: flex; gap: 1.25rem; }
.footer-inner a { text-decoration: none; }
.footer-inner a:hover { color: var(--text); }

/* Installer contacts */
.installers { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); margin-top: 8px; }
.installers-stack { margin-top: 14px; }
.installer {
  display: flex; align-items: center; gap: 14px; padding: 14px 16px; text-decoration: none;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); transition: border-color .15s;
}
.installer:hover { border-color: var(--accent); }
.installer-area { flex: none; width: 42px; height: 42px; border-radius: 50%; display: grid; place-items: center; background: var(--accent); font: 800 .95rem var(--font-display); }
.installer-text { display: flex; flex-direction: column; color: var(--muted); font-size: .92rem; line-height: 1.35; min-width: 0; overflow-wrap: anywhere; }
.installer-text strong { color: var(--text); font-size: 1rem; }
.installer-go { margin-left: auto; color: var(--accent); font-size: 1.2rem; }
.form .installer { background: var(--bg); }

.done { text-align: center; padding: 12px 0; }
.done p { color: var(--muted); }
.error a { color: inherit; font-weight: 600; }

/* Terms page */
.legal { padding: 48px 0 64px; }
.legal h2 { font-size: 1.4rem; margin-top: 1.6em; }
.legal li { color: var(--muted); margin-bottom: .6em; }
.legal a { color: var(--accent); }