:root {
  --bg: #ffffff;
  --text: #111111;
  --muted: #6b7280;
  --border: #e5e7eb;
  --accent: #111111;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif; }
a { color: inherit; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }
.row { display: flex; gap: 12px; }
.between { justify-content: space-between; }
.mid { align-items: center; }
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
@media (max-width: 900px) { .grid-3 { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 640px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.topbar { position: sticky; top: 0; z-index: 10; background: rgba(255,255,255,.9); backdrop-filter: blur(6px); border-bottom: 1px solid var(--border); }
.topbar .logo { font-weight: 800; font-size: 20px; letter-spacing: .2px; }
.topbar .tag { font-size: 11px; color: var(--muted); }
.nav button { background: transparent; border: 0; padding: 10px 12px; border-radius: 12px; cursor: pointer; }
.nav button:hover { background: #f3f4f6; }
.nav .outline { border: 1px solid var(--border); }

.hero { background: url('../images/hero_floor.jpg') center/cover no-repeat; }
.hero .overlay { background: rgba(0,0,0,.4); color: #fff; }
.hero .wrap { padding: 96px 16px; }
.hero h1 { font-size: 38px; margin: 0 0 12px; }
.hero p { font-size: 18px; max-width: 720px; margin: 0 0 16px; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 14px; border-radius: 12px; border: 1px solid var(--border); cursor: pointer; }
.btn.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn.ghost { background: transparent; }

.section { padding: 40px 0; }
.h2 { font-size: 28px; font-weight: 700; margin: 0 0 6px; }
.muted { color: var(--muted); }

.card { border: 1px solid var(--border); border-radius: 16px; overflow: hidden; background: #fff; }
.card .img { width: 100%; aspect-ratio: 4 / 3; background: #f3f4f6; background-position: center; background-size: cover; }
.card .body { padding: 12px; }
.card .title { font-size: 16px; font-weight: 700; }
.card .sub { font-size: 13px; color: var(--muted); }

.input, .textarea, .select { width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px; }
.textarea { min-height: 120px; }
.label { font-size: 12px; color: var(--muted); display: block; margin: 8px 0 4px; }

.footer { border-top: 1px solid var(--border); padding: 20px 0; margin-top: 32px; }
.badge { display: inline-block; padding: 2px 8px; border: 1px solid var(--border); border-radius: 999px; font-size: 12px; color: var(--muted); }
.tags { display: flex; gap: 8px; flex-wrap: wrap; }
.center { text-align: center; }