:root {
  --bg: #0d1220;
  --card: #17203a;
  --card-edge: #26335c;
  --text: #eef2ff;
  --muted: #96a1c0;
  --accent: #6c8cff;
  --accent-deep: #4a63d8;
  --green: #34d399;
  --amber: #fbbf24;
  --red: #f87171;
  --radius: 16px;
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg); color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", Inter, system-ui, sans-serif;
  min-height: 100dvh; padding-bottom: env(safe-area-inset-bottom);
}
.hidden { display: none !important; }

/* PIN gate */
.gate { min-height: 100dvh; display: flex; align-items: center; justify-content: center; padding: 24px; }
.gate-card { width: 100%; max-width: 340px; text-align: center; }
.gate-emoji { font-size: 44px; }
.gate-card h1 { margin: 12px 0 6px; font-size: 24px; }
.gate-card p { color: var(--muted); margin: 0 0 18px; font-size: 14px; }
.pin-input {
  width: 100%; padding: 14px; font-size: 20px; text-align: center; letter-spacing: 6px;
  background: var(--card); border: 1px solid var(--card-edge); border-radius: var(--radius);
  color: var(--text); margin-bottom: 12px;
}
.gate-err { color: var(--red); min-height: 20px; font-size: 13px; }

/* Appbar */
.appbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  padding: calc(10px + env(safe-area-inset-top)) 16px 10px;
  background: rgba(13, 18, 32, .92); backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.appbar-title { font-size: 19px; font-weight: 800; }
.appbar-sub { color: var(--muted); font-size: 12.5px; margin-top: 2px; }
.icon-btn {
  width: 38px; height: 38px; border-radius: 12px; font-size: 17px;
  background: var(--card); border: 1px solid var(--card-edge); color: var(--text);
  cursor: pointer;
}

/* Tabs */
.tabs { display: flex; gap: 8px; padding: 12px 16px 4px; }
.tab {
  flex: 1; padding: 10px 0; border-radius: 12px; font-size: 14.5px; font-weight: 700;
  background: var(--card); border: 1px solid var(--card-edge); color: var(--muted);
  cursor: pointer;
}
.tab.active { color: #fff; border-color: var(--accent); background: rgba(108,140,255,.16); }

/* Panels */
.panels { padding: 8px 16px 110px; max-width: 640px; margin: 0 auto; }
.tabpanel { display: none; }
.tabpanel.active { display: block; }
.hint { color: var(--muted); font-size: 13px; margin: 6px 2px 12px; }
.empty { text-align: center; color: var(--muted); padding: 40px 20px; font-size: 15px; }

.items { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.view-toggle {
  display: flex; background: var(--card); border: 1px solid var(--card-edge);
  border-radius: 999px; padding: 3px; margin: 2px 0 12px; width: max-content;
}
.vt-btn {
  border: none; background: none; color: var(--muted); font-size: 13px;
  font-weight: 700; padding: 7px 16px; border-radius: 999px; cursor: pointer;
}
.vt-btn.active { background: var(--accent); color: #0b0f1c; }
.section {
  list-style: none; background: rgba(255,255,255,.025);
  border: 1px solid var(--card-edge); border-radius: var(--radius);
  overflow: hidden;
}
.section-head {
  width: 100%; display: flex; align-items: center; gap: 10px;
  padding: 13px 14px; background: none; border: none; cursor: pointer;
  font-size: 13.5px; font-weight: 800; letter-spacing: 1px; text-transform: uppercase;
  color: var(--text);
}
.section-name { flex: 1; text-align: left; color: var(--accent); }
.section-count {
  font-size: 12px; color: var(--muted); background: var(--card);
  border: 1px solid var(--card-edge); border-radius: 999px; padding: 2px 10px;
}
.section-chev { color: var(--muted); font-size: 15px; transition: transform .15s ease; }
.section.closed .section-chev { transform: rotate(-90deg); }
.section-items {
  list-style: none; margin: 0; padding: 2px 8px 10px;
  display: flex; flex-direction: column; gap: 8px;
}
.section.closed .section-items { display: none; }
.item {
  display: flex; align-items: center; gap: 12px;
  background: var(--card); border: 1px solid var(--card-edge);
  border-radius: var(--radius); padding: 12px 14px;
}
.check {
  flex: none; width: 30px; height: 30px; border-radius: 50%;
  border: 2px solid var(--muted); background: transparent; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  color: transparent; font-size: 17px; font-weight: 800;
}
.check.done { background: var(--green); border-color: var(--green); color: #0d1220; }
.item-body { flex: 1; min-width: 0; }
.item-name { font-size: 16px; font-weight: 600; }
.item-name.struck { text-decoration: line-through; color: var(--muted); }
.item-meta { color: var(--muted); font-size: 12.5px; margin-top: 2px; }
.badge {
  flex: none; font-size: 11.5px; font-weight: 800; padding: 5px 9px; border-radius: 999px;
  text-transform: uppercase; letter-spacing: .4px;
}
.badge.due { background: rgba(248,113,113,.16); color: var(--red); border: 1px solid rgba(248,113,113,.5); }
.badge.soon { background: rgba(251,191,36,.14); color: var(--amber); border: 1px solid rgba(251,191,36,.45); }
.badge.ok { background: rgba(52,211,153,.12); color: var(--green); border: 1px solid rgba(52,211,153,.4); }
.badge.learning { background: rgba(150,161,192,.12); color: var(--muted); border: 1px solid rgba(150,161,192,.35); }
.mini-btn {
  flex: none; font-size: 13px; font-weight: 700; padding: 8px 12px; border-radius: 10px;
  background: rgba(108,140,255,.16); border: 1px solid var(--accent); color: #fff; cursor: pointer;
}
.del-btn {
  flex: none; border: none; background: none; color: var(--muted); font-size: 18px;
  cursor: pointer; padding: 6px;
}
.usual-star { flex: none; color: var(--amber); font-size: 15px; }

/* Add bar */
.addbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 10;
  display: flex; gap: 8px; align-items: center;
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
  background: rgba(13, 18, 32, .95); backdrop-filter: blur(8px);
  border-top: 1px solid rgba(255,255,255,.06);
  max-width: 640px; margin: 0 auto;
}
.add-input {
  flex: 1; min-width: 0; padding: 12px 14px; font-size: 16px;
  background: var(--card); border: 1px solid var(--card-edge);
  border-radius: 12px; color: var(--text);
}
.chip {
  flex: none; width: 44px; height: 44px; border-radius: 12px; font-size: 19px;
  background: var(--card); border: 1px solid var(--card-edge); color: var(--muted);
  cursor: pointer;
}
.chip[aria-pressed="true"] { color: var(--amber); border-color: var(--amber); background: rgba(251,191,36,.12); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  border: none; color: #fff; font-weight: 800; cursor: pointer;
  border-radius: 12px; padding: 12px 18px; font-size: 15px;
}
.btn-add { flex: none; width: 48px; height: 48px; padding: 0; font-size: 24px; border-radius: 14px; }
.gate-card .btn-primary { width: 100%; }

/* receipt scanner */
.overlay {
  position: fixed; inset: 0; z-index: 60; display: flex;
  align-items: center; justify-content: center;
  background: rgba(4, 6, 12, .72); backdrop-filter: blur(3px);
}
.scan-card {
  background: var(--card); border: 1px solid var(--card-edge);
  border-radius: var(--radius); padding: 28px 32px; text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 14px;
  max-width: 78vw;
}
.scan-card p { margin: 0; font-size: 14px; color: var(--text); }
.spinner {
  width: 34px; height: 34px; border-radius: 50%;
  border: 3px solid var(--card-edge); border-top-color: var(--accent);
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.sheet-wrap {
  position: fixed; inset: 0; z-index: 60; display: flex;
  align-items: flex-end; justify-content: center;
  background: rgba(4, 6, 12, .6);
}
.sheet {
  width: 100%; max-width: 520px; max-height: 82vh; overflow-y: auto;
  background: #141a2c; border: 1px solid var(--card-edge);
  border-bottom: none; border-radius: 18px 18px 0 0;
  padding: 20px 18px calc(20px + env(safe-area-inset-bottom));
}
.sheet h3 { margin: 0 0 4px; font-size: 17px; }
.sheet-sub { margin: 0 0 14px; font-size: 13px; color: var(--muted); }
.match-list { list-style: none; margin: 0 0 8px; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.match-row label {
  display: flex; align-items: center; gap: 12px; cursor: pointer;
  background: var(--card); border: 1px solid var(--card-edge);
  border-radius: 12px; padding: 10px 12px;
}
.match-row input[type="checkbox"] { width: 20px; height: 20px; accent-color: var(--accent); flex: none; }
.match-row b { display: block; font-size: 14.5px; }
.match-row small { display: block; font-size: 12px; color: var(--muted); margin-top: 2px; }
.match-none { color: var(--muted); font-size: 14px; padding: 8px 2px; }
.unmatched { margin: 6px 0 12px; font-size: 13px; color: var(--muted); }
.unmatched summary { cursor: pointer; padding: 6px 2px; }
.unmatched ul { margin: 6px 0 0; padding-left: 20px; display: flex; flex-direction: column; gap: 4px; }
.sheet-actions { display: flex; gap: 10px; margin-top: 14px; }
.sheet-actions .btn-primary { flex: 1; }
.sheet-actions .btn-primary:disabled { opacity: .45; }
.toast {
  position: fixed; left: 50%; bottom: calc(96px + env(safe-area-inset-bottom));
  transform: translateX(-50%); z-index: 70;
  background: #1d2740; border: 1px solid var(--card-edge); color: var(--text);
  font-size: 14px; font-weight: 600; border-radius: 999px; padding: 10px 18px;
  box-shadow: 0 6px 24px rgba(0,0,0,.4); white-space: nowrap;
}