* { box-sizing: border-box; }
[hidden] { display: none !important; }

:root {
  --bg: #0f172a;
  --surface: #1e293b;
  --surface-2: #334155;
  --text: #f1f5f9;
  --muted: #94a3b8;
  --accent: #818cf8;
  --accent-2: #c7d2fe;
  --warn: #fb923c;
  --radius: 14px;
}

html, body {
  margin: 0; padding: 0; min-height: 100vh;
  background: var(--bg); color: var(--text);
  font: 15px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  overscroll-behavior-y: contain;
}

body {
  padding-top: env(safe-area-inset-top);
  padding-bottom: env(safe-area-inset-bottom);
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}

#decoy {
  min-height: 100vh; display: flex; flex-direction: column;
  align-items: center; justify-content: center; text-align: center;
  color: var(--muted); padding: 24px;
}
#decoy h1 { font-weight: 500; margin: 0 0 8px; color: var(--text); }

/* ---- shared shell ---- */

.view {
  max-width: 720px; margin: 0 auto; padding: 0 16px 32px;
  min-height: 100vh;
}

.app-head {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 18px 4px 14px; position: sticky; top: 0;
  background: linear-gradient(to bottom, var(--bg) 85%, transparent);
  z-index: 2;
}
.app-head h1 { margin: 0; font-size: 22px; font-weight: 600; letter-spacing: -0.2px; }
.muted { color: var(--muted); font-size: 13px; }

.app-head button {
  background: var(--surface); color: var(--text);
  border: 1px solid var(--surface-2); border-radius: 999px;
  width: 40px; height: 40px; font-size: 20px; line-height: 1; cursor: pointer;
  flex-shrink: 0;
}
.app-head button:active { background: var(--surface-2); }
.app-head button.spinning { animation: spin 0.7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.detail-title { flex: 1; min-width: 0; }
.detail-title h1 { font-size: 18px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ---- home: tile list ---- */

ul.tiles { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }

.tile {
  background: linear-gradient(180deg, #233046 0%, #1b2436 100%);
  border: 1px solid #3a4662;
  border-radius: var(--radius);
  display: grid; grid-template-columns: 56px 1fr 36px; align-items: center;
  padding: 14px 16px;
  cursor: pointer;
  transition: transform 80ms ease, background 120ms ease, box-shadow 120ms ease, border-color 120ms ease;
  user-select: none; -webkit-tap-highlight-color: transparent;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 2px 8px rgba(0, 0, 0, 0.35);
}
.tile:hover  { border-color: var(--accent); }
.tile:active {
  transform: translateY(1px);
  border-color: var(--accent);
  background: linear-gradient(180deg, #1b2436 0%, #131c2b 100%);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.3);
}
.tile.empty { cursor: default; text-align: center; color: var(--muted); display: block; padding: 40px 20px; }

.tile-icon {
  width: 48px; height: 48px; border-radius: 14px;
  background: rgba(129, 140, 248, 0.18);
  border: 1px solid rgba(129, 140, 248, 0.3);
  display: flex; align-items: center; justify-content: center;
  font-size: 24px;
}
.tile.warn .tile-icon {
  background: rgba(251, 146, 60, 0.18);
  border-color: rgba(251, 146, 60, 0.3);
}

.tile-body { padding: 0 14px; min-width: 0; }
.tile-name { font-size: 16px; font-weight: 600; letter-spacing: -0.1px; }
.tile-sub  { font-size: 13px; color: var(--muted); margin-top: 3px; }

.tile-chev {
  width: 28px; height: 28px; border-radius: 999px;
  background: rgba(129, 140, 248, 0.15);
  color: var(--accent-2);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; line-height: 1;
}

/* ---- detail: item list ---- */

#detail-summary { margin: 6px 2px 14px; }

.shop-summary-line { font-size: 13px; margin-bottom: 10px; }

/* ---- chip filter bar ---- */

.chip-bar {
  display: flex; gap: 8px; overflow-x: auto;
  padding: 6px 2px 10px; margin: 0 -16px 6px;
  padding-left: 16px; padding-right: 16px;
  scrollbar-width: none;
}
.chip-bar::-webkit-scrollbar { display: none; }
.chip {
  flex-shrink: 0; border: 1px solid var(--surface-2);
  background: var(--surface); color: var(--text);
  border-radius: 999px; padding: 6px 12px; font: inherit; font-size: 13px;
  cursor: pointer; display: inline-flex; align-items: center; gap: 6px;
  white-space: nowrap; transition: background 100ms, border-color 100ms;
  -webkit-tap-highlight-color: transparent;
}
.chip:active { background: var(--surface-2); }
.chip.active {
  background: var(--accent); border-color: var(--accent); color: #0f172a;
  font-weight: 600;
}
.chip.active .chip-count { background: rgba(15, 23, 42, 0.2); color: #0f172a; }
.chip-count {
  background: rgba(148, 163, 184, 0.22); color: var(--muted);
  font-size: 11px; border-radius: 999px; padding: 1px 7px; min-width: 20px;
  text-align: center; font-weight: 600;
}

.cat-tag {
  font-size: 10px; text-transform: uppercase; letter-spacing: 0.5px;
  color: var(--muted); background: rgba(148, 163, 184, 0.15);
  padding: 2px 6px; border-radius: 4px; margin-left: 4px; font-weight: 500;
}

.pin-tag { font-size: 11px; opacity: 0.7; }

.shop-empty {
  text-align: center; padding: 40px 20px;
  background: var(--surface); border: 1px solid var(--surface-2);
  border-radius: var(--radius); list-style: none;
}

ul.items {
  list-style: none; margin: 0; padding: 0;
  background: var(--surface); border: 1px solid var(--surface-2);
  border-radius: var(--radius); overflow: hidden;
}
ul.items li {
  padding: 12px 14px; border-top: 1px solid var(--surface-2);
  display: flex; flex-direction: column; gap: 4px;
}
ul.items li:first-child { border-top: none; }
ul.items a { color: var(--accent-2); text-decoration: none; font-size: 15px; }
ul.items a:active { color: var(--accent); }

.item-meta { font-size: 11px; display: flex; gap: 8px; }
.item-meta .topic { text-transform: uppercase; letter-spacing: 0.5px; }

/* ---- shop detail ---- */

ul.shop-items {
  list-style: none; margin: 0; padding: 0;
  display: flex; flex-direction: column; gap: 12px;
}
.shop-item {
  background: var(--surface); border: 1px solid var(--surface-2);
  border-radius: var(--radius); padding: 14px 14px 10px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.04);
}
.shop-item.on-sale   { border-color: rgba(74, 222, 128, 0.5); }
.shop-item.not-found { border-color: rgba(251, 146, 60, 0.4); opacity: 0.75; }

.shop-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.shop-name { font-size: 16px; font-weight: 600; }
.shop-status {
  font-size: 10px; letter-spacing: 0.6px; text-transform: uppercase;
  padding: 3px 8px; border-radius: 999px;
  background: rgba(129, 140, 248, 0.15); color: var(--accent-2);
  white-space: nowrap;
}
.shop-item.on-sale .shop-status {
  background: rgba(74, 222, 128, 0.18); color: #86efac;
}
.shop-item.not-found .shop-status {
  background: rgba(251, 146, 60, 0.2); color: var(--warn);
}

.shop-best { font-size: 13px; color: var(--muted); margin: 8px 0 0; }
.shop-best strong { color: var(--text); }

ul.shop-matches { list-style: none; margin: 10px 0 0; padding: 10px 0 0; border-top: 1px solid var(--surface-2); display: flex; flex-direction: column; gap: 8px; }
ul.shop-matches li.match { display: flex; flex-direction: column; gap: 3px; }
.match-top { display: flex; align-items: baseline; gap: 10px; font-size: 13px; }
.match-top .store { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px; min-width: 80px; }
.match-name { font-size: 13px; }
.match-name a { color: var(--accent-2); text-decoration: none; }
.match-name a:active { color: var(--accent); }

.price       { color: var(--text); font-weight: 600; }
.price-sale  { color: #86efac; font-weight: 700; }
.price-was   { color: var(--muted); text-decoration: line-through; font-size: 12px; }

.shop-note { margin-top: 10px; padding-top: 10px; border-top: 1px solid var(--surface-2); font-size: 13px; }

/* ---- footer: hard refresh + info ---- */

.app-foot {
  margin-top: 24px; padding: 16px 4px 32px;
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  font-size: 12px;
}
.app-foot button.linkish {
  background: transparent; border: none; color: var(--muted);
  font: inherit; cursor: pointer; padding: 6px 10px;
  text-decoration: underline dotted;
  text-underline-offset: 3px;
}
.app-foot button.linkish:hover { color: var(--accent-2); }
#cache-info { opacity: 0.7; }