:root { --red: #b3201e; --dark: #2b2b2e; --muted: #6b6b70; --line: #e4e4e7; --soft: #f6f6f7; }
* { box-sizing: border-box; }
body { margin: 0; font-family: Arial, Helvetica, sans-serif; color: #1d1d1f; background: var(--soft); }

.topbar { background: var(--dark); color: #fff; display: flex; align-items: center; gap: 16px; padding: 14px 28px; flex-wrap: wrap; }
.logo { font-weight: 700; font-size: 22px; letter-spacing: 1px; border: 2px solid #fff; padding: 4px 10px; }
.tagline { font-size: 12px; text-transform: uppercase; letter-spacing: 1px; opacity: .85; border-left: 1px solid rgba(255,255,255,.4); padding-left: 16px; }

.hero { background: linear-gradient(180deg, #2b2b2e, #1d1d1f); color: #fff; padding: 48px 36px; }
.hero h1 { margin: 0; font-size: 26px; letter-spacing: .5px; }
.hero .model { font-size: 84px; font-weight: 800; line-height: 1; letter-spacing: -2px; margin: 8px 0 0; }
.hero .model::after { content: ""; display: block; width: 80px; height: 4px; background: var(--red); margin-top: 12px; }
.hero .slogan { font-size: 18px; margin-top: 16px; }

main { max-width: 1000px; margin: 0 auto; padding: 32px 24px 120px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 24px; margin-bottom: 24px; }
.badge { display: inline-block; background: var(--red); color: #fff; font-weight: 700; font-size: 14px; text-transform: uppercase; padding: 12px 18px; border-radius: 6px; margin-bottom: 16px; }
.note { font-size: 13px; color: var(--muted); margin-top: 0; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
td { padding: 9px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
td:first-child { color: var(--muted); width: 38%; }

.price-box { margin-top: 18px; padding: 16px 18px; background: var(--soft); border-radius: 8px; display: flex; flex-direction: column; gap: 6px; font-size: 15px; }
.price-box .big { font-size: 22px; font-weight: 800; color: var(--red); }

.actions { display: flex; gap: 14px; flex-wrap: wrap; margin: 8px 0 24px; }
.btn { border: 2px solid var(--red); background: var(--red); color: #fff; padding: 14px 24px; border-radius: 6px; font-weight: 700; font-size: 15px; cursor: pointer; }
.btn.alt { background: #fff; color: var(--red); }
.btn:hover { filter: brightness(.95); }

.panel { display: none; }
.panel.open { display: block; }

details { border-bottom: 1px solid var(--line); padding: 10px 0; }
summary { cursor: pointer; font-weight: 700; font-size: 15px; padding: 4px 0; }
.pick { padding: 10px 0 4px 4px; }
select { font-size: 14px; padding: 10px; border: 1px solid #bbb; border-radius: 6px; max-width: 100%; }
.none { font-size: 13px; color: var(--muted); }

.summary { background: var(--soft); border-radius: 8px; padding: 18px; font-size: 14px; margin-bottom: 16px; }
.summary ul { margin: 8px 0; padding-left: 20px; }

.totalbar { position: fixed; left: 0; right: 0; bottom: 0; background: var(--dark); color: #fff; padding: 16px 24px; display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.totalbar .sum { font-size: 20px; font-weight: 800; }

footer { background: var(--dark); color: #ddd; text-align: center; padding: 24px; font-size: 13px; }

.door-photo-wrap { max-width: 1000px; margin: 0 auto; padding: 24px 24px 0; }
.door-photo { display: block; width: 100%; height: auto; border-radius: 10px; }

.qty { display: flex; align-items: center; gap: 14px; margin: 12px 0 18px; }
.qty button { width: 44px; height: 44px; border: 2px solid var(--red); background: #fff; color: var(--red); font-size: 22px; font-weight: 700; border-radius: 6px; cursor: pointer; }
.qty span { font-size: 22px; font-weight: 700; min-width: 48px; text-align: center; }
.tier { font-size: 13px; color: var(--muted); }
.bar-buttons { display: flex; gap: 10px; flex-wrap: wrap; }
.demo { font-size: 13px; color: var(--muted); margin: 12px 0 0; }

.form-title { margin: 20px 0 8px; font-size: 16px; }
.field { display: block; font-size: 14px; color: var(--muted); margin-bottom: 12px; }
.field input, .field textarea { display: block; width: 100%; margin-top: 6px; padding: 10px; font-size: 15px; border: 1px solid #bbb; border-radius: 6px; font-family: inherit; }
.consent { display: flex; gap: 8px; align-items: flex-start; font-size: 14px; margin: 8px 0 16px; }