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

/* TETRIX design language — paper, ink, red accent, condensed uppercase type. */
:root {
  --bg: #f4f1eb;
  --ink: #1a1714;
  --mid: #6b6560;
  --rule: #d8d3cb;
  --white: #fdfcfa;
  --accent: #c8381a;
  --accent-dark: #a82e14;
  --good: #2a7a3a;
  --radius: 2px;
  --cond: 'Barlow Condensed', sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: 'Barlow', sans-serif;
  font-size: 16px;
  line-height: 1.5;
  min-height: 100vh;
}
.shell { max-width: 980px; margin: 0 auto; padding: 0 24px 80px; }

/* ── Header ── */
.topbar {
  display: flex; align-items: center; gap: 16px;
  padding: 22px 0 18px; border-bottom: 2px solid var(--ink);
}
.header-logo { height: 30px; width: auto; display: block; }
.brand-sub {
  font-family: var(--cond); font-weight: 700; font-size: 16px;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--mid);
}
.badge {
  margin-left: auto; font-family: var(--cond); font-weight: 700; font-size: 11px;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent);
  border: 1.5px solid var(--accent); border-radius: var(--radius); padding: 3px 9px;
}

/* ── Step indicator ── */
.steps {
  list-style: none; display: flex; flex-wrap: wrap; gap: 6px 18px;
  padding: 16px 0 6px; font-family: var(--cond);
}
.steps li {
  font-weight: 700; font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--rule);
}
.steps li.active { color: var(--accent); }
.steps li.done { color: var(--ink); }

/* ── Sheet / steps ── */
.sheet { padding-top: 14px; }
.step { padding: 22px 0 8px; }
.step h2 {
  font-family: var(--cond); font-weight: 700; font-size: 30px; line-height: 1.05;
  letter-spacing: 0.03em; text-transform: uppercase; margin-bottom: 6px;
}
.hint { color: var(--mid); margin-bottom: 22px; font-size: 15.5px; max-width: 60ch; }

/* ── Type cards ── */
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.card {
  text-align: left; cursor: pointer; background: var(--white);
  border: 1.5px solid var(--rule); border-radius: var(--radius); padding: 18px 20px;
  font: inherit; transition: border-color 0.15s, background 0.15s;
}
.card:hover { border-color: var(--ink); }
.card.selected { border-color: var(--ink); background: var(--ink); color: var(--bg); }
.card.selected p { color: #a09a92; }
.card h3 {
  font-family: var(--cond); font-weight: 800; font-size: 22px; letter-spacing: 0.05em;
  text-transform: uppercase; margin-bottom: 4px;
}
.card p { margin: 0; color: var(--mid); font-size: 14.5px; }

/* ── Layout step ── */
.layout-wrap { display: flex; gap: 28px; align-items: flex-start; flex-wrap: wrap; }
.layout-list { flex: 1 1 340px; }
.fp-group { margin-bottom: 18px; }
.fp-group h4 {
  display: flex; align-items: center; gap: 8px; margin-bottom: 8px;
  font-family: var(--cond); font-weight: 800; font-size: 13px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--ink);
  border-bottom: 2px solid var(--ink); padding-bottom: 4px;
}
.fp-glyph { display: block; }
.fp-glyph .shape-accent { fill: var(--accent); }
.fp-glyph .shape-bg { fill: var(--rule); }
.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  cursor: pointer; border: 1.5px solid var(--rule); background: var(--white);
  border-radius: var(--radius); padding: 8px 14px; font-family: var(--cond);
  font-weight: 700; font-size: 16px; letter-spacing: 0.04em; color: var(--ink);
  transition: border-color 0.15s, background 0.15s, color 0.15s;
}
.chip:hover { border-color: var(--ink); }
.chip.selected { border-color: var(--accent); background: var(--accent); color: #fff; }
.preview { flex: 0 0 300px; }
.preview figcaption {
  font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--mid); margin-bottom: 8px; font-weight: 600;
}
.preview img { width: 300px; border: 1.5px solid var(--rule); border-radius: var(--radius); display: block; background: var(--white); }

/* Shared booth glyph fills */
.shape-accent { fill: var(--accent); }
.shape-bg { fill: var(--rule); }

/* ── Footprint selector ── */
.fp-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 24px; }
.fp-card {
  display: flex; flex-direction: column; align-items: center; gap: 6px; cursor: pointer;
  background: var(--white); border: 1.5px solid var(--rule); border-radius: var(--radius);
  padding: 16px 10px 14px; font: inherit; transition: border-color 0.15s, background 0.15s;
}
.fp-card:hover { border-color: var(--ink); }
.fp-card.selected { border-color: var(--ink); background: var(--ink); }
.fp-card.selected .fp-card-name, .fp-card.selected .fp-card-count { color: var(--bg); }
.fp-card.selected .shape-bg { fill: #3a3530; }
.fp-card-name { font-family: var(--cond); font-weight: 800; font-size: 16px; letter-spacing: 0.06em; text-transform: uppercase; }
.fp-card-count { font-size: 12px; color: var(--mid); }

/* ── Size editor: I-slider ── */
.slider-wrap { max-width: 460px; }
.size-value { display: flex; align-items: baseline; gap: 8px; }
.size-num { font-family: var(--cond); font-weight: 800; font-size: 46px; line-height: 1; }
.size-unit { font-family: var(--cond); font-weight: 600; font-size: 18px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--mid); }
.size-ticks { display: flex; justify-content: space-between; font-size: 13px; color: var(--mid); letter-spacing: 0.03em; }
input[type="range"].size-slider {
  -webkit-appearance: none; appearance: none; width: 100%; height: 3px; margin: 18px 0 8px;
  background: linear-gradient(to right, var(--accent) 0%, var(--accent) var(--fill, 50%), var(--rule) var(--fill, 50%), var(--rule) 100%);
  border-radius: 2px; outline: none;
}
input[type="range"].size-slider::-webkit-slider-thumb {
  -webkit-appearance: none; width: 22px; height: 22px; background: var(--ink);
  border-radius: 50%; cursor: pointer; border: 2px solid var(--accent);
}
input[type="range"].size-slider::-moz-range-thumb {
  width: 20px; height: 20px; background: var(--ink); border-radius: 50%; cursor: pointer; border: 2px solid var(--accent);
}

/* ── Size editor: L/U multi-slider ── */
.multi-slider { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 20px 28px; }
.slider-label {
  font-family: var(--cond); font-weight: 700; font-size: 11px;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); margin-bottom: 2px;
}

/* ── Tabs ── */
.tabs { display: flex; gap: 2px; margin-bottom: 18px; border-bottom: 2px solid var(--ink); }
.tab {
  font-family: var(--cond); font-weight: 700; font-size: 15px; letter-spacing: 0.06em;
  text-transform: uppercase; cursor: pointer; background: none; border: none;
  border-bottom: 2px solid transparent; color: var(--mid); padding: 8px 16px; margin-bottom: -2px;
}
.tab:hover { color: var(--ink); }
.tab.selected { color: var(--accent); border-bottom-color: var(--accent); }

/* ── URL bar + scrape ── */
.urlbar { display: flex; gap: 8px; margin-bottom: 12px; }
.urlbar input {
  flex: 1; font: inherit; padding: 10px 12px; background: var(--white);
  border: 1.5px solid var(--rule); border-radius: var(--radius);
}
.urlbar input:focus { outline: none; border-color: var(--ink); }
.scrape-status { color: var(--mid); font-size: 13.5px; min-height: 18px; margin-bottom: 10px; }
.scrape-status.error { color: var(--accent); }

/* ── Upload drop ── */
.drop {
  display: block; border: 1.5px dashed var(--rule); border-radius: var(--radius);
  padding: 28px; text-align: center; cursor: pointer; color: var(--mid);
  background: var(--white); transition: border-color 0.15s, background 0.15s;
}
.drop:hover { border-color: var(--ink); }
.drop.filled { border-style: solid; }
.drop-label { font-family: var(--cond); font-weight: 700; font-size: 15px; letter-spacing: 0.04em; text-transform: uppercase; }
.thumb { max-height: 160px; max-width: 100%; margin: 12px auto 0; display: block; border-radius: var(--radius); }

/* ── Gallery ── */
.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(118px, 1fr)); gap: 10px; }
.gallery .tile {
  position: relative; cursor: pointer; border: 1.5px solid var(--rule);
  border-radius: var(--radius); overflow: hidden; background: var(--white);
  aspect-ratio: 1; display: flex; align-items: center; justify-content: center; padding: 6px;
  transition: border-color 0.15s;
}
.gallery .tile:hover { border-color: var(--ink); }
.gallery .tile.selected { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent) inset; }
.gallery .tile img { max-width: 100%; max-height: 100%; object-fit: contain; }
.gallery .tile .pick {
  position: absolute; top: 5px; right: 5px; background: var(--accent); color: #fff;
  font-size: 11px; font-weight: 700; width: 20px; height: 20px; border-radius: 50%;
  display: none; align-items: center; justify-content: center;
}
.gallery .tile.selected .pick { display: flex; }
.gallery .tile .kind {
  position: absolute; bottom: 0; left: 0; right: 0; background: rgba(26,23,20,0.82);
  color: #fff; font-family: var(--cond); font-weight: 700; font-size: 10px;
  letter-spacing: 0.08em; text-transform: uppercase; text-align: center; padding: 2px 0;
}
.selected { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px; }
.selected img { height: 96px; border: 1.5px solid var(--rule); border-radius: var(--radius); background: var(--white); }
.selected:empty { margin: 0; }

/* ── Review ── */
.review {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px 24px;
  background: var(--white); border: 1.5px solid var(--rule); border-radius: var(--radius);
  padding: 20px 22px;
}
.review .ri { font-size: 14.5px; }
.review .ri b {
  display: block; font-family: var(--cond); font-weight: 700; font-size: 11px;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); margin-bottom: 2px;
}
.review img { max-height: 120px; border: 1.5px solid var(--rule); border-radius: var(--radius); margin-top: 6px; background: var(--bg); }
.review .imgs { display: flex; gap: 8px; flex-wrap: wrap; }
.cost { color: var(--mid); font-size: 14.5px; margin: 18px 0 14px; }
.cost b { color: var(--ink); }

/* ── Nav / buttons ── */
.nav { display: flex; justify-content: space-between; margin-top: 26px; border-top: 1px solid var(--rule); padding-top: 18px; }
.btn {
  font-family: var(--cond); font-weight: 700; font-size: 15px; letter-spacing: 0.08em;
  text-transform: uppercase; cursor: pointer; border-radius: var(--radius);
  padding: 11px 24px; border: 1.5px solid var(--ink); background: var(--white);
  color: var(--ink); transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.btn:hover:not(:disabled) { background: var(--ink); color: var(--bg); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover:not(:disabled) { background: var(--accent-dark); border-color: var(--accent-dark); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

/* ── Result ── */
.result-img { width: 100%; border: 1.5px solid var(--rule); border-radius: var(--radius); display: block; background: var(--white); }
.result-actions { display: flex; gap: 10px; margin-top: 16px; flex-wrap: wrap; align-items: center; }
a.btn { text-decoration: none; display: inline-block; }
.spinner-box { text-align: center; padding: 48px 0; color: var(--mid); font-size: 15px; display: flex; flex-direction: column; align-items: center; gap: 8px; }
.spinner-sub { font-size: 13px; color: var(--rule); }
.spinner {
  width: 40px; height: 40px; margin: 0 auto 16px; border-radius: 50%;
  border: 3px solid var(--rule); border-top-color: var(--accent);
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.error {
  color: var(--accent); background: #fbeae6; border: 1.5px solid #e6b3a8;
  border-radius: var(--radius); padding: 12px 14px; margin-top: 12px;
}
.error-hint { color: var(--mid); font-size: 13.5px; margin-top: 8px; }
.result-tip {
  background: var(--white); border: 1.5px solid var(--rule);
  border-radius: var(--radius); padding: 14px 16px;
  color: var(--mid); font-size: 14px; margin-top: 16px; line-height: 1.55;
}
.result-tip strong { color: var(--ink); }
details.prompt { margin-top: 16px; }
details.prompt summary { cursor: pointer; font-family: var(--cond); font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; color: var(--ink); }
details.prompt pre {
  background: var(--white); border: 1.5px solid var(--rule); border-radius: var(--radius);
  padding: 12px; white-space: pre-wrap; font-size: 12.5px; line-height: 1.5;
  max-height: 300px; overflow: auto; margin-top: 8px;
}

/* ── Token gate ── */
.gate-overlay {
  position: fixed; inset: 0; background: var(--bg);
  display: flex; align-items: center; justify-content: center;
  z-index: 100; padding: 24px;
}
.gate-card {
  background: var(--white); border: 1.5px solid var(--rule);
  border-radius: var(--radius); padding: 40px 48px; max-width: 400px; width: 100%;
  text-align: center;
}
.gate-logo { height: 28px; margin: 0 auto 20px; display: block; }
.gate-title {
  font-family: var(--cond); font-weight: 800; font-size: 26px;
  text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 8px;
}
.gate-hint { color: var(--mid); font-size: 14.5px; margin-bottom: 22px; }
.gate-row { display: flex; gap: 8px; }
.gate-input {
  flex: 1; font-family: var(--cond); font-weight: 700; font-size: 17px;
  letter-spacing: 0.1em; text-align: center; padding: 10px 12px;
  background: var(--bg); border: 1.5px solid var(--rule); border-radius: var(--radius);
}
.gate-input:focus { outline: none; border-color: var(--ink); }
.gate-error { color: var(--accent); font-size: 13.5px; margin-top: 12px; min-height: 20px; }

/* ── Screenshot tiles (wider aspect ratio) ── */
.gallery .tile-screenshot { aspect-ratio: 16/10; }
.gallery .tile-screenshot .kind { background: rgba(30, 80, 160, 0.88); }

/* ── Remaining count ── */
.gen-remaining { font-size: 14px; color: var(--mid); margin-bottom: 10px; }
.gen-remaining b { color: var(--ink); }
.gen-remaining.warn { color: var(--accent); }

/* ── Utility ── */
.d-none { display: none !important; }

@media (max-width: 620px) {
  .cards { grid-template-columns: 1fr; }
  .review { grid-template-columns: 1fr; }
  .step h2 { font-size: 24px; }
}