/* ============================================================
   CHOOSER.CSS — Landing page selettore versioni di design
   Demo 1: Idraulica Zanon
   Stile neutro, NON ruba la scena alle 3 versioni proposte.
   ============================================================ */

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

:root {
  --bg: #FAFAFA;
  --surface: #FFFFFF;
  --ink: #0A0A0A;
  --ink-soft: #525252;
  --muted: #A3A3A3;
  --border: #E5E5E5;
  --accent: #0A0A0A;
  --r: 8px;
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.mono { font-family: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace; }

a { color: inherit; text-decoration: none; }

/* ---------- Container ---------- */
.container {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Top bar ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}
.topbar__brand {
  font-size: 14px; font-weight: 600;
  letter-spacing: -0.01em;
}
.topbar__brand small { color: var(--muted); font-weight: 400; margin-left: 8px; }
.topbar__badge {
  font-size: 10px; letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--ink-soft); padding: 4px 10px; border: 1px solid var(--border);
  border-radius: 100px;
}

/* ---------- Hero ---------- */
.hero {
  padding: 96px 0 64px;
  text-align: left;
}
.hero__eyebrow {
  font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 20px; display: block;
}
.hero__title {
  font-size: clamp(36px, 6vw, 56px);
  font-weight: 600; line-height: 1.05; letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.hero__lede {
  font-size: 18px; color: var(--ink-soft); max-width: 640px;
  margin-bottom: 8px;
}
.hero__meta {
  font-size: 13px; color: var(--muted); margin-top: 24px;
}

/* ---------- Cards grid ---------- */
.versions {
  padding: 24px 0 96px;
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px;
}
@media (max-width: 720px) { .versions { grid-template-columns: 1fr; } }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 32px;
  display: flex; flex-direction: column; gap: 20px;
  transition: border-color 200ms ease, transform 200ms ease;
  position: relative;
}
.card:hover { border-color: var(--ink); }
.card:focus-within { outline: 2px solid var(--ink); outline-offset: 4px; }

.card__index {
  font-size: 11px; letter-spacing: 0.15em; color: var(--muted);
  text-transform: uppercase;
}
.card__title {
  font-size: 26px; font-weight: 600; letter-spacing: -0.015em;
}
.card__mood {
  font-size: 15px; color: var(--ink-soft); line-height: 1.55;
  flex-grow: 1;
}

/* Swatch row */
.swatch {
  display: flex; gap: 6px; height: 32px;
}
.swatch span {
  flex: 1; border-radius: 4px; border: 1px solid rgba(0,0,0,0.04);
}

.card__skills {
  font-size: 12px; color: var(--muted);
  letter-spacing: 0.02em; line-height: 1.6;
}
.card__skills strong { color: var(--ink-soft); font-weight: 500; }

.card__open {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 18px;
  border: 1px solid var(--ink);
  border-radius: var(--r);
  font-size: 14px; font-weight: 500;
  align-self: flex-start;
  transition: background-color 200ms ease, color 200ms ease;
}
.card__open:hover { background: var(--ink); color: var(--bg); }
.card__open span { font-size: 16px; }

/* Reference card variant */
.card--reference {
  background: var(--bg);
  border-style: dashed;
}
.card--reference .card__title { color: var(--ink-soft); }

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 24px;
  font-size: 12px;
  color: var(--muted);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
}
.footer a { color: var(--ink-soft); text-decoration: underline; text-underline-offset: 3px; }