/* Switchable palettes ("colors" dropdown in the header, saved per browser).
   Dark palettes share one dark neutral base and only swap the two accent
   colors; light palettes share a separate light neutral base the same way.
   That keeps every palette internally consistent while giving each a
   distinct identity through hue alone. */

:root {
  --bg: #1a1b1e; --panel: #222327; --panel2: #2a2b30;
  --text: #e6e6e8; --muted: #9a9aa0; --border: #37383e;
  --danger: #c96f6f;
  --radius: 6px;
  --font-body: 15px/1.55 "Segoe UI", system-ui, sans-serif;
  --font-head: 600 1em "Segoe UI", system-ui, sans-serif;
  color-scheme: dark;
  /* default palette: steel (soft blue + warm sand) */
  --accent: #85abd6; --accent-text: #0e1826;
  --accent2: #c9b283; --accent2-text: #221a08;
}

/* ---- dark palettes (share the --bg/--panel/--text/etc. above) ---- */

/* the original pick: soft blue + warm sand */
:root[data-palette="steel"] {
  --accent: #85abd6; --accent-text: #0e1826;
  --accent2: #c9b283; --accent2-text: #221a08;
}
/* sage green + warm gold */
:root[data-palette="forest"] {
  --accent: #7fc491; --accent-text: #0d2313;
  --accent2: #d1b168; --accent2-text: #241d08;
}
/* violet + dusty rose */
:root[data-palette="plum"] {
  --accent: #b28ddb; --accent-text: #1c1030;
  --accent2: #d99bb0; --accent2-text: #2a1420;
}
/* warm red + amber */
:root[data-palette="crimson"] {
  --accent: #e28080; --accent-text: #2a0d0d;
  --accent2: #e0b567; --accent2-text: #271b06;
}
/* teal + coral (complementary pair) */
:root[data-palette="teal"] {
  --accent: #63c2b7; --accent-text: #072220;
  --accent2: #e2917c; --accent2-text: #2a150d;
}
/* orange + magenta */
:root[data-palette="sunset"] {
  --accent: #e2965f; --accent-text: #2a1608;
  --accent2: #d97fb0; --accent2-text: #2a1220;
}
/* near-grayscale silver + warm taupe, minimal/no-color option */
:root[data-palette="mono"] {
  --accent: #c6c6cc; --accent-text: #16161a;
  --accent2: #a89a86; --accent2-text: #1e1810;
}

/* ---- light palettes: separate light neutral base, shared by all three ---- */

:root[data-palette="paper"],
:root[data-palette="linen"],
:root[data-palette="mist"] {
  --bg: #f6f5f2; --panel: #ffffff; --panel2: #eeece7;
  --text: #232323; --muted: #69696d; --border: #dcdad4;
  --danger: #b3453f;
  color-scheme: light;
}
/* blue + warm brown */
:root[data-palette="paper"] {
  --accent: #3d6fa8; --accent-text: #f5f8fc;
  --accent2: #a3773a; --accent2-text: #fbf3e6;
}
/* terracotta + olive */
:root[data-palette="linen"] {
  --accent: #b5602f; --accent-text: #fbeee2;
  --accent2: #5f7a4a; --accent2-text: #eef3e8;
}
/* deep teal + muted indigo */
:root[data-palette="mist"] {
  --accent: #3a6b78; --accent-text: #eaf5f6;
  --accent2: #6a63a8; --accent2-text: #f0eefa;
}

* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: var(--font-body);
}
header {
  padding: 14px 28px; border-bottom: 1px solid var(--border);
  display: flex; align-items: baseline; gap: 16px; flex-wrap: wrap;
}
header h1 { margin: 0; font: var(--font-head); font-size: 20px; color: var(--accent); }
header a { color: var(--muted); font-size: 13px; text-decoration: none; }
header a:hover { color: var(--accent); }
#status { color: var(--muted); font-size: 13px; }
.spacer { flex: 1; }
.theme-pick { color: var(--muted); font-size: 12.5px; }
.username { color: var(--text); font-size: 13px; }
.username b { color: var(--accent); }
a.signout {
  color: var(--muted); font-size: 12px; padding: 4px 10px;
  border: 1px solid var(--border); border-radius: 12px; background: var(--panel2);
}
a.signout:hover { color: var(--danger); border-color: var(--danger); }

.tabs {
  display: flex; gap: 8px; padding: 14px 28px 0;
  max-width: 1400px; margin: 0 auto;
}
.tabs .tab {
  background: transparent; border: 1px solid transparent;
  color: var(--muted); font-weight: 600; font-size: 14px;
  padding: 7px 16px; border-radius: var(--radius); cursor: pointer;
}
.tabs .tab:hover { color: var(--text); }
.tabs .tab.active {
  background: var(--panel); color: var(--accent);
  border-color: var(--border);
}

main {
  display: grid; grid-template-columns: 1fr 1fr; gap: 18px;
  padding: 20px 28px; max-width: 1400px; margin: 0 auto;
}
main.view { display: none; }
main.view.active { display: grid; }
@media (max-width: 900px) { main { grid-template-columns: 1fr; } }
section {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px 18px;
}
section h2 { margin: 0 0 4px; font: var(--font-head); font-size: 15px; color: var(--text); }
section .hint { color: var(--muted); font-size: 12.5px; margin: 0 0 10px; }
#results-section { grid-column: 1 / -1; }
/* Collections tab: one short list + one potentially long, dense tag list -
   side-by-side columns leave a huge gap under the short one. Stack instead. */
#view-collections { grid-template-columns: 1fr; }

input[type=search], input[type=text], input[type=password] {
  width: 100%; padding: 9px 12px; border-radius: var(--radius);
  border: 1px solid var(--border); background: var(--panel2);
  color: var(--text); font-size: 15px; outline: none;
}
input[type=search]:focus, input[type=text]:focus, input[type=password]:focus {
  border-color: var(--accent);
}
select, input[type=number] {
  background: var(--panel2); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--radius); padding: 4px;
}
.error { color: var(--danger); }
form p { margin: 14px 0 4px; }

/* Styled stand-in for alert() - errors and the one success message
   (collection import) that used to be native dialogs. */
#toast {
  position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 12px);
  background: var(--panel); border: 1px solid var(--border); color: var(--text);
  border-radius: var(--radius); padding: 10px 16px; font-size: 13.5px;
  box-shadow: 0 4px 16px rgba(0,0,0,.3);
  opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s;
  z-index: 10;
}
#toast.show { opacity: 1; transform: translate(-50%, 0); }
#toast.error { border-color: var(--danger); }
#toast.success { border-color: var(--accent2); }

/* Inline rename, replacing a native prompt() */
.rename-input { width: auto; min-width: 140px; padding: 2px 6px; font-size: 15px; font-weight: 600; }

/* Two-click delete confirm, replacing a native confirm() */
button.ghost.confirm-danger { background: var(--danger); color: var(--bg); border-color: var(--danger); }

.tag {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 9px 12px; margin-top: 8px; border-radius: var(--radius);
  background: var(--panel2); border: 1px solid var(--border);
}
.tag .info { flex: 1; min-width: 220px; }
.tag .title { font-weight: 600; }
.tag .title a {
  color: var(--text); text-decoration: underline;
  text-decoration-style: dotted; text-decoration-color: var(--muted);
  text-underline-offset: 3px;
}
.tag .title a:hover { color: var(--accent); text-decoration-color: var(--accent); }
.tag .sub { color: var(--muted); font-size: 12.5px; }
.tag .sub-stats { opacity: .75; }
.tag .score {
  font-weight: 700; color: var(--accent); font-size: 15px;
  min-width: 48px; text-align: right;
}
.tag .score.score-good { font-size: 17px; }
.tag .score.score-high { font-size: 20px; }
/* A 90%+ match is the payoff this whole product exists for - the same
   accent-border-signals-something-open language the collections accordion
   already uses, not a new visual device. */
.tag.strong-match { border-color: var(--accent); }
.tag audio {
  height: 32px; flex: 1 1 260px; min-width: 210px;
  max-width: 560px; width: auto;
}
/* synthesized playback (MIDI or sheet-music render), not a real recording:
   a quiet dashed ring instead of recoloring the whole control */
.tag audio.synth {
  outline: 1px dashed var(--accent2); outline-offset: 2px;
  border-radius: 20px;
}

button {
  border: none; border-radius: var(--radius); padding: 8px 14px;
  cursor: pointer; background: var(--accent); color: var(--accent-text);
  font-weight: 600; font-size: 14px;
}
button.small { padding: 5px 10px; font-size: 13px; }
button.alt { background: var(--accent2); color: var(--accent2-text); }
button.ghost {
  background: var(--panel2); color: var(--muted);
  border: 1px solid var(--border);
}
button.ghost:hover { color: var(--danger); border-color: var(--danger); }
button:disabled { opacity: .5; cursor: default; }
.toolbar { display: flex; gap: 10px; align-items: center; margin-bottom: 10px; flex-wrap: wrap; }
.toolbar label { color: var(--muted); font-size: 13px; }

.badge {
  font-size: 11px; padding: 1px 7px; border-radius: 10px;
  border: 1px solid var(--border); color: var(--muted);
  white-space: nowrap; display: inline-block;
}
.badge.ok { color: var(--accent2); border-color: var(--accent2); }
.badge.coll { color: var(--accent); border-color: var(--accent); }
/* already auditioned (played, in the search set, or in a collection):
   shaded, not badged. Full brightness returns on hover so it stays usable. */
.tag.viewed { opacity: .55; }
.tag.viewed:hover { opacity: 1; }
/* opacity < 1 creates a new CSS stacking context, which traps the open
   collection picker's z-index inside it instead of letting the popover
   render above the next tag card - so don't dim a tag while its own
   picker is open. */
.tag.viewed:has(.coll-picker[open]) { opacity: 1; }

.empty { color: var(--muted); font-style: italic; padding: 8px 2px; }
.note { color: var(--muted); font-size: 13px; margin-top: 8px; }

/* ------- collections: accordion, any number open at once ------- */
.collection-block { margin-top: 8px; }
.collection-block summary { list-style: none; cursor: pointer; }
.collection-block summary::-webkit-details-marker { display: none; }
.collection-block .collection-tags { padding: 10px 4px 2px 28px; }
.coll-arrow {
  display: inline-block; color: var(--muted); transition: transform .15s;
}
.collection-block[open] .coll-arrow { transform: rotate(90deg); }

.collection-row {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 9px 12px; border-radius: var(--radius);
  background: var(--panel2); border: 1px solid var(--border);
}
.collection-block[open] .collection-row { border-color: var(--accent); }
.collection-name { font-weight: 600; }

/* button.small/button.ghost are scoped to <button> elements only, so an
   <a> or <label> with those same classes silently gets no styling - give
   this pair their own rule instead of relying on that. */
a.small.ghost, .import-label {
  display: inline-flex; align-items: center; gap: 4px;
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 5px 10px; cursor: pointer;
  background: var(--panel2); color: var(--muted);
  font-weight: 600; font-size: 13px; text-decoration: none;
}
a.small.ghost:hover, .import-label:hover { color: var(--accent); border-color: var(--accent); }
.import-label { position: relative; overflow: hidden; }
.import-label input[type=file] {
  position: absolute; inset: 0; opacity: 0; cursor: pointer; width: 100%;
}

.coll-picker { position: relative; display: inline-block; }
.coll-picker summary {
  list-style: none; cursor: pointer;
  padding: 5px 10px; font-size: 13px; font-weight: 600; border-radius: var(--radius);
  background: var(--accent); color: var(--accent-text); border: none;
}
.coll-picker summary::-webkit-details-marker { display: none; }
.coll-picker[open] summary { filter: brightness(1.1); }
.coll-picker-menu {
  position: absolute; z-index: 5; top: calc(100% + 4px); left: 0;
  min-width: 180px; padding: 8px; border-radius: var(--radius);
  background: var(--panel); border: 1px solid var(--border);
  box-shadow: 0 4px 16px rgba(0,0,0,.3);
}
.coll-picker-menu label {
  display: block; padding: 4px 2px; font-size: 13px; color: var(--text);
  white-space: nowrap;
}
.coll-picker-new { margin-top: 6px; border-top: 1px solid var(--border); padding-top: 6px; }
.coll-picker-new input { font-size: 13px; padding: 5px 8px; }

/* ------- landing page ------- */
.about {
  display: block; max-width: 720px; padding: 36px 28px 60px;
}
.about h1 { font: var(--font-head); font-size: 30px; color: var(--accent); margin: 0 0 6px; }
.about .tagline { color: var(--muted); font-size: 17px; margin: 0 0 28px; }
.about h2 { font: var(--font-head); font-size: 17px; margin: 28px 0 8px; color: var(--text); }
.about p, .about li { color: var(--text); }
.about ol { padding-left: 22px; }
.about li { margin-bottom: 8px; }
.about .go {
  display: inline-block; margin-top: 30px; padding: 12px 22px;
  background: var(--accent); color: var(--accent-text);
  border-radius: var(--radius); font-weight: 600; font-size: 16px;
  text-decoration: none;
}
.about .fineprint { color: var(--muted); font-size: 12.5px; margin-top: 26px; }

/* Secondary path on the sign-in page: present but not competing with it. */
.register {
  margin-top: 34px; border-top: 1px solid var(--line); padding-top: 18px;
}
.register summary {
  cursor: pointer; font: var(--font-head); font-size: 15px;
  color: var(--accent); list-style: none;
}
.register summary::-webkit-details-marker { display: none; }
.register summary::before { content: "+ "; }
.register[open] summary::before { content: "\2212  "; }
.register[open] summary { margin-bottom: 10px; }
.register .go { margin-top: 20px; }