/* DJ Set Planner — dark booth theme */
:root {
  --bg: #0b0d10;
  --surface: #14161a;
  --card: #1a1e24;
  --card-2: #21262e;
  --border: #2a2f38;
  --text: #e8eaed;
  --text-2: #9aa3ad;
  --text-3: #6b7480;
  --accent: #9085e9;
  --accent-dim: #4a3aa7;
  /* transition tiers (carried over from prototype) */
  --green: #1D9E75;
  --yellow: #EF9F27;
  --orange: #D85A30;
  --red: #A32D2D;
  /* chart series (validated categorical, dark) */
  --s1: #3987e5; --s2: #199e70; --s3: #c98500; --s4: #008300;
  --s5: #9085e9; --s6: #e66767; --s7: #d55181; --s8: #d95926;
  --radius: 10px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  padding-bottom: calc(64px + var(--safe-bottom));
}
button, input, select, textarea { font: inherit; color: inherit; }
a { color: var(--accent); text-decoration: none; }

/* ---------- chrome ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 16px; background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 30;
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; letter-spacing: .2px; }
.brand img { border-radius: 6px; }
.top-status { font-size: 12.5px; color: var(--text-2); display: flex; align-items: center; gap: 6px; }
.top-status .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--text-3); }
.top-status .dot.on { background: var(--green); }

.tabs {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 30;
  display: flex; background: var(--surface);
  border-top: 1px solid var(--border);
  padding-bottom: var(--safe-bottom);
}
.tabs a {
  flex: 1; display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: 8px 0 6px; color: var(--text-3); font-size: 11px; font-weight: 600;
}
.tabs a .tab-ico { font-size: 17px; line-height: 1; }
.tabs a.active { color: var(--accent); }

@media (min-width: 760px) {
  body { padding-bottom: 24px; }
  .tabs {
    position: sticky; top: 49px; bottom: auto;
    border-top: none; border-bottom: 1px solid var(--border);
    justify-content: flex-start; padding: 0 8px;
  }
  .tabs a { flex: none; flex-direction: row; gap: 7px; padding: 10px 16px; font-size: 13.5px; }
  .tabs a.active { box-shadow: inset 0 -2px 0 var(--accent); }
}

main { max-width: 1060px; margin: 0 auto; padding: 14px 12px 40px; }

/* ---------- primitives ---------- */
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; margin-bottom: 14px; }
.card h2 { margin: 0 0 10px; font-size: 15px; }
.card h3 { margin: 16px 0 8px; font-size: 13.5px; color: var(--text-2); text-transform: uppercase; letter-spacing: .5px; }
.muted { color: var(--text-2); }
.tiny { font-size: 12px; color: var(--text-3); }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.grow { flex: 1; min-width: 0; }

.btn {
  background: var(--card-2); border: 1px solid var(--border); border-radius: 8px;
  padding: 8px 13px; cursor: pointer; font-weight: 600; font-size: 13.5px;
  color: var(--text); white-space: nowrap;
}
.btn:hover { border-color: var(--text-3); }
.btn.primary { background: var(--accent-dim); border-color: var(--accent-dim); }
.btn.primary:hover { background: #5647c0; }
.btn.danger { color: #ff8b8b; }
.btn.small { padding: 4px 9px; font-size: 12.5px; }
.btn.icon { padding: 6px 9px; }
.btn:disabled { opacity: .45; cursor: default; }

input[type=text], input[type=number], input[type=search], select, textarea {
  background: var(--bg); border: 1px solid var(--border); border-radius: 8px;
  padding: 8px 10px; width: 100%; outline: none;
}
.row input[type=search] { min-width: 200px; }
input:focus, select:focus, textarea:focus { border-color: var(--accent-dim); }
label.f { display: block; font-size: 12px; color: var(--text-2); margin-bottom: 3px; }
.field { min-width: 0; }

.pills { display: flex; gap: 6px; flex-wrap: wrap; }
.pill {
  border: 1px solid var(--border); background: var(--card-2); border-radius: 999px;
  padding: 5px 12px; font-size: 12.5px; font-weight: 600; cursor: pointer; color: var(--text-2);
}
.pill.active { background: var(--accent-dim); color: var(--text); border-color: var(--accent-dim); }

/* ---------- badges ---------- */
.badge {
  display: inline-block; padding: 1px 7px; border-radius: 6px;
  font-size: 11.5px; font-weight: 700; background: var(--card-2);
  border: 1px solid var(--border); color: var(--text-2); white-space: nowrap;
}
.badge.key { color: #b7c7ff; }
.badge.bpm { color: #ffd9a8; }
.badge.needs { color: var(--yellow); border-color: rgba(239,159,39,.4); }
.badge.hook { color: #7fd4c1; }
.genre-dot { display: inline-block; width: 9px; height: 9px; border-radius: 3px; margin-right: 4px; vertical-align: -1px; }

.tier-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 700;
}
.tier-chip .n { font-variant-numeric: tabular-nums; }
.tier-green  { background: rgba(29,158,117,.14); color: #4fd0a5; }
.tier-yellow { background: rgba(239,159,39,.14); color: #f5b657; }
.tier-orange { background: rgba(216,90,48,.16); color: #ef8560; }
.tier-red    { background: rgba(163,45,45,.18); color: #e97575; }

/* ---------- track rows ---------- */
.tracklist { display: flex; flex-direction: column; }
.trow {
  display: flex; align-items: center; gap: 10px; padding: 9px 10px;
  border-bottom: 1px solid var(--border); cursor: pointer; border-radius: 6px;
}
.trow:hover { background: var(--card-2); }
.trow .tmain { flex: 1; min-width: 0; }
.trow .tname { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.trow .tartist { font-size: 12.5px; color: var(--text-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.trow .tbadges { display: flex; gap: 5px; align-items: center; flex-shrink: 0; }

/* ---------- smart add ---------- */
.smartbar { display: flex; gap: 8px; }
.smartbar input { font-size: 15px; }
.smart-preview { margin-top: 7px; font-size: 12.5px; color: var(--text-2); min-height: 18px; }
.smart-preview .ok { color: #4fd0a5; font-weight: 600; }
.smart-preview .miss { color: var(--text-3); }

/* ---------- set builder ---------- */
.set-row {
  display: flex; align-items: center; gap: 8px; padding: 8px 6px;
  background: var(--card); border: 1px solid var(--border); border-radius: 8px;
}
.set-row.dragging { opacity: .35; }
.set-row .pos { width: 22px; text-align: right; color: var(--text-3); font-size: 12px; font-variant-numeric: tabular-nums; }
.set-row .handle {
  cursor: grab; touch-action: none; padding: 6px 8px; color: var(--text-3);
  font-size: 15px; user-select: none; -webkit-user-select: none;
}
.set-row .tmain { flex: 1; min-width: 0; cursor: pointer; }
.transition-strip { display: flex; align-items: center; gap: 8px; padding: 3px 0 3px 44px; }
.transition-strip .line { width: 14px; height: 16px; border-left: 2px solid var(--border); }
.transition-strip .t-labels { font-size: 11.5px; color: var(--text-3); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.transition-strip .tier-chip { cursor: pointer; flex-shrink: 0; }

.suggestion-row { display: flex; align-items: center; gap: 9px; padding: 8px 6px; border-bottom: 1px solid var(--border); }
.suggestion-row .tmain { flex: 1; min-width: 0; cursor: pointer; }
.slabels { font-size: 11.5px; color: var(--text-3); }

/* ---------- charts ---------- */
.chart-wrap { overflow-x: auto; }
.chart-wrap svg { display: block; }
.chart-title { font-size: 12px; color: var(--text-2); margin: 4px 0 2px; }

/* ---------- graph ---------- */
.graph-layout { display: grid; grid-template-columns: 1fr; gap: 12px; }
@media (min-width: 900px) { .graph-layout { grid-template-columns: 1fr 300px; } }
#graphCanvas { width: 100%; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); touch-action: none; display: block; }
.legend { display: flex; flex-wrap: wrap; gap: 8px; font-size: 12px; color: var(--text-2); }
.legend span { display: inline-flex; align-items: center; gap: 5px; }

/* ---------- stats ---------- */
.stat-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 10px; margin-bottom: 14px; }
.stat-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 14px; }
.stat-card .v { font-size: 24px; font-weight: 800; letter-spacing: -.5px; }
.stat-card .l { font-size: 12px; color: var(--text-2); margin-top: 2px; }
.bar-row { display: flex; align-items: center; gap: 10px; margin: 5px 0; font-size: 13px; }
.bar-row .bl { width: 90px; color: var(--text-2); text-align: right; flex-shrink: 0; }
.bar-row .bar { height: 18px; border-radius: 4px; background: var(--s1); min-width: 2px; }
.bar-row .bv { color: var(--text-2); font-size: 12px; }
.keywheel { display: grid; grid-template-columns: 34px repeat(12, 1fr); gap: 3px; max-width: 620px; }
.keywheel .kcell { text-align: center; border-radius: 4px; padding: 5px 0; font-size: 11.5px; font-weight: 600; background: var(--card-2); }
.keywheel .klabel { color: var(--text-3); font-size: 11px; display: flex; align-items: center; justify-content: center; }

/* ---------- modal ---------- */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,.6); z-index: 50;
  display: flex; align-items: flex-end; justify-content: center;
}
@media (min-width: 700px) { .modal-backdrop { align-items: center; } }
.modal {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 14px 14px 0 0; width: 100%; max-width: 720px;
  max-height: 92vh; overflow-y: auto; padding: 16px;
  overscroll-behavior: contain;
}
@media (min-width: 700px) { .modal { border-radius: 14px; max-height: 86vh; } }
.modal-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; margin-bottom: 10px; }
.modal-head h2 { margin: 0; font-size: 17px; }
.modal-close { background: none; border: none; font-size: 22px; color: var(--text-3); cursor: pointer; padding: 2px 8px; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 9px; }
.form-grid .wide { grid-column: 1 / -1; }

/* match rows inside modal */
.match-row { display: flex; align-items: center; gap: 8px; padding: 7px 4px; border-bottom: 1px solid var(--border); }
.match-row .tmain { flex: 1; min-width: 0; cursor: pointer; }
.match-row .mlabels { font-size: 11.5px; color: var(--text-3); }
.thumbs { display: flex; gap: 4px; }
.thumb { background: none; border: 1px solid var(--border); border-radius: 6px; padding: 3px 8px; cursor: pointer; font-size: 13px; opacity: .75; }
.thumb.on-up { background: rgba(29,158,117,.2); border-color: var(--green); opacity: 1; }
.thumb.on-down { background: rgba(163,45,45,.25); border-color: var(--red); opacity: 1; }

.bridge-path { padding: 9px; background: var(--card-2); border-radius: 8px; margin-bottom: 8px; }
.bridge-hop { display: flex; align-items: center; gap: 7px; font-size: 13px; padding: 3px 0; flex-wrap: wrap; }
.bridge-arrow { color: var(--text-3); }

/* ---------- toast ---------- */
#toastRoot { position: fixed; bottom: calc(72px + var(--safe-bottom)); left: 0; right: 0; display: flex; flex-direction: column; align-items: center; gap: 8px; z-index: 90; pointer-events: none; }
@media (min-width: 760px) { #toastRoot { bottom: 24px; } }
.toast {
  background: var(--card-2); border: 1px solid var(--border); color: var(--text);
  border-radius: 10px; padding: 10px 16px; font-size: 13.5px; font-weight: 600;
  box-shadow: 0 6px 24px rgba(0,0,0,.5); max-width: 92vw;
  animation: toast-in .18s ease-out;
}
.toast.err { border-color: var(--red); color: #ff9d9d; }
@keyframes toast-in { from { transform: translateY(8px); opacity: 0; } }

.empty { text-align: center; color: var(--text-3); padding: 28px 10px; font-size: 13.5px; }
.spin { display: inline-block; width: 14px; height: 14px; border: 2px solid var(--text-3); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; vertical-align: -2px; }
@keyframes spin { to { transform: rotate(360deg); } }