/* Songbook — a calm notebook for guitar songs.
   Everything visual is driven by the tokens below; restyle by editing them. */

/* ===================== Tokens ===================== */

:root {
  /* Paper, ink and wood */
  --bg: #f3eee5;
  --paper: #fcfaf5;          /* cards and sheets */
  --column: rgba(255, 252, 245, 0.5);
  --ink: #2e2a25;
  --ink-soft: #5c554c;
  --muted: #736b5f;
  --line: rgba(70, 55, 40, 0.12);
  --line-strong: rgba(70, 55, 40, 0.24);
  --field: rgba(70, 55, 40, 0.045);
  --scrim: rgba(45, 35, 25, 0.32);
  --shadow: 0 1px 2px rgba(60, 40, 20, 0.06), 0 6px 16px -10px rgba(60, 40, 20, 0.3);
  --shadow-lift: 0 2px 4px rgba(60, 40, 20, 0.06), 0 22px 44px -18px rgba(60, 40, 20, 0.45);
  --danger: #b0503c;

  /* One accent per list */
  --want: #b5813f;           /* honey / spruce top */
  --practicing: #b8644a;     /* clay / rosewood */
  --learned: #5f8a62;        /* sage */

  --serif: 'Instrument Serif', 'Iowan Old Style', Georgia, serif;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --radius: 14px;
  --gutter: max(28px, env(safe-area-inset-left));
  color-scheme: light;
}

/* Dark: warm, like a desk lamp on dark wood. Set data-theme="light|dark" on <html> to force one. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --bg: #191613;
    --paper: #25211d;
    --column: rgba(255, 245, 230, 0.03);
    --ink: #eee7dc;
    --ink-soft: #c2b9ac;
    --muted: #9d9386;
    --line: rgba(255, 240, 220, 0.09);
    --line-strong: rgba(255, 240, 220, 0.2);
    --field: rgba(255, 240, 220, 0.05);
    --scrim: rgba(0, 0, 0, 0.55);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 20px -12px rgba(0, 0, 0, 0.7);
    --shadow-lift: 0 2px 6px rgba(0, 0, 0, 0.35), 0 28px 56px -20px rgba(0, 0, 0, 0.85);
    --danger: #e08a72;
    --want: #d9aa66;
    --practicing: #de8f70;
    --learned: #8fb88f;
    color-scheme: dark;
  }
}
:root[data-theme='dark'] {
  --bg: #191613;
  --paper: #25211d;
  --column: rgba(255, 245, 230, 0.03);
  --ink: #eee7dc;
  --ink-soft: #c2b9ac;
  --muted: #9d9386;
  --line: rgba(255, 240, 220, 0.09);
  --line-strong: rgba(255, 240, 220, 0.2);
  --field: rgba(255, 240, 220, 0.05);
  --scrim: rgba(0, 0, 0, 0.55);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 20px -12px rgba(0, 0, 0, 0.7);
  --shadow-lift: 0 2px 6px rgba(0, 0, 0, 0.35), 0 28px 56px -20px rgba(0, 0, 0, 0.85);
  --danger: #e08a72;
  --want: #d9aa66;
  --practicing: #de8f70;
  --learned: #8fb88f;
  color-scheme: dark;
}

/* ===================== Base ===================== */

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.5 var(--sans);
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}
html { scrollbar-gutter: stable; }
html.modal-open { overflow: hidden; }

/* Paper grain */
.grain {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.06;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

button, input, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--ink-soft); outline-offset: 2px; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}

/* ===================== Login ===================== */

.login {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 16px;
}
.login-card {
  width: min(340px, 100%);
  text-align: center;
  animation: rise 0.8s var(--ease) both;
}
.login-mark {
  display: block;
  margin: 0 auto 16px;
  transform-origin: 50% 20%;
  animation: sway 6s ease-in-out infinite;
}
@keyframes sway { 50% { transform: rotate(-8deg); } }
.login h1 { font: 400 40px/1.05 var(--serif); margin: 0 0 6px; }
.login-sub { margin: 0 0 26px; color: var(--muted); font-size: 14px; }
.login-row {
  display: flex;
  align-items: center;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 5px 5px 20px;
  box-shadow: var(--shadow);
  transition: border-color 0.25s var(--ease);
}
.login-row:focus-within { border-color: var(--line-strong); }
.login-row input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: none;
  font-size: 16px; /* 16px stops iOS from zooming in */
  outline: none;
}
.login-row button {
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 50%;
  background: var(--ink);
  color: var(--bg);
  display: grid;
  place-items: center;
  transition: transform 0.25s var(--ease);
}
.login-row button:hover { transform: translateX(2px); }
.login-error { min-height: 20px; margin: 12px 0 0; color: var(--muted); font-size: 13px; }
.shake { animation: shake 0.45s var(--ease); }
@keyframes shake {
  20% { transform: translateX(-7px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(2px); }
}
.demo-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  padding: 10px 16px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: none;
  color: var(--muted);
  font-size: 14px;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.demo-link svg { transition: transform 0.3s var(--ease); }
.demo-link:hover, .demo-link:focus-visible { color: var(--ink); border-color: var(--line); background: var(--paper); }
.demo-link:hover svg { transform: translateX(3px); }

/* ===================== Top bar ===================== */

.app {
  max-width: 1280px;
  margin: 0 auto;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  animation: fade 0.5s var(--ease) both;
}
.topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: max(22px, env(safe-area-inset-top)) var(--gutter) 18px;
}
.brand { display: flex; align-items: center; gap: 12px; margin-right: auto; }
.brand h1 { font: 400 32px/1 var(--serif); margin: 0; letter-spacing: -0.005em; }
.demo-pill {
  padding: 3px 9px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--ink-soft);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

/* Sync status: calm green when synced, pulsing while saving, amber when offline. */
.sync {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--learned);
  opacity: 0.6;
  transition: background 0.4s, opacity 0.4s;
}
.sync[data-state='saving'] { background: var(--muted); opacity: 1; animation: pulse 1.2s ease-in-out infinite; }
.sync[data-state='offline'] { background: var(--want); opacity: 1; }
@keyframes pulse { 50% { opacity: 0.25; } }

.search {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  width: min(300px, 100%);
  height: 42px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--paper);
  color: var(--muted);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.search:focus-within { border-color: var(--line-strong); box-shadow: 0 0 0 4px var(--field); }
.search input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: none;
  font-size: 15px;
  outline: none;
  color: var(--ink);
}
.search input::placeholder { color: var(--muted); }
.search kbd {
  padding: 1px 7px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font: 12px var(--sans);
  color: var(--muted);
}
.search:focus-within kbd { display: none; }

.top-actions { display: flex; align-items: center; gap: 6px; }
.add-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 42px;
  padding: 0 16px 0 13px;
  border: 0;
  border-radius: 12px;
  background: var(--ink);
  color: var(--bg);
  font-weight: 500;
  box-shadow: var(--shadow);
  transition: transform 0.2s var(--ease), box-shadow 0.25s var(--ease);
}
.add-btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-lift); }
.add-btn:active { transform: scale(0.97); }
.icon-btn {
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 50%;
  background: none;
  color: var(--ink-soft);
  display: grid;
  place-items: center;
  transition: background 0.2s, color 0.2s;
}
.icon-btn:hover { background: var(--field); color: var(--ink); }

/* Example-songs banner */
.banner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px 12px;
  margin: 0 var(--gutter) 16px;
  padding: 8px 8px 8px 16px;
  border: 1px dashed var(--line-strong);
  border-radius: 12px;
  color: var(--ink-soft);
  font-size: 14px;
}
.banner span { margin-right: auto; }

/* ===================== Board ===================== */

.board {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  align-items: start;
  padding: 0 var(--gutter) 8px;
}
.column {
  --accent: var(--want);
  display: flex;
  flex-direction: column;
  min-height: 220px;
  padding: 14px 12px 12px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--column);
  transition: border-color 0.2s, background 0.2s;
}
.column[data-list='practicing'] { --accent: var(--practicing); }
.column[data-list='learned'] { --accent: var(--learned); }
.column.drop-target {
  border-color: color-mix(in srgb, var(--accent) 55%, transparent);
  background: color-mix(in srgb, var(--accent) 6%, var(--column));
}

.column-head {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 0 6px 12px;
}
.column-head::before {
  content: '';
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
}
.column-head h2 { margin: 0; font-size: 14px; font-weight: 600; letter-spacing: 0.01em; }
.count {
  min-width: 24px;
  padding: 1px 8px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 500;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.songs { display: flex; flex-direction: column; gap: 10px; flex: 1; }
.empty {
  margin: 18px 6px;
  color: var(--muted);
  font-size: 14px;
  font-style: italic;
  text-align: center;
}
.songs:has(.slot) .empty { display: none; }

/* Drop position while dragging */
.slot {
  border: 1.5px dashed color-mix(in srgb, var(--accent) 60%, transparent);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--accent) 7%, transparent);
}

/* ===================== Song card ===================== */

.song {
  --accent: var(--want);
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2px 10px;
  padding: 13px 12px 13px 16px;
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: var(--shadow);
  transition: transform 0.2s var(--ease), box-shadow 0.25s var(--ease), opacity 0.2s;
}
.song[data-list='practicing'] { --accent: var(--practicing); }
.song[data-list='learned'] { --accent: var(--learned); }
/* Thin accent line on the left edge, like a bookmark ribbon */
.song::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--accent);
  opacity: 0.75;
}
.song:hover { transform: translateY(-2px); box-shadow: var(--shadow-lift); }
.song.dragging { opacity: 0.35; transform: none; box-shadow: none; }
.song.enter { animation: pop 0.45s var(--ease); }
@keyframes pop {
  from { opacity: 0; transform: translateY(8px) scale(0.98); }
}

/* The whole card is clickable via this stretched button; links sit above it. */
.song-open {
  position: absolute;
  inset: 0;
  z-index: 0;
  border: 0;
  border-radius: inherit;
  background: none;
}
.song-open:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.song-text { min-width: 0; pointer-events: none; }
.song-title {
  margin: 0;
  font: 400 21px/1.15 var(--serif);
  overflow-wrap: anywhere;
}
.song-artist {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 13.5px;
  overflow-wrap: anywhere;
}

.song-links { position: relative; z-index: 1; display: flex; gap: 2px; align-self: start; margin: -4px -4px 0 0; }
.icon-link {
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 10px;
  background: none;
  color: var(--ink-soft);
  display: grid;
  place-items: center;
  transition: background 0.2s, color 0.2s, transform 0.2s var(--ease);
}
.icon-link:hover { background: color-mix(in srgb, var(--accent) 14%, transparent); color: var(--ink); }
.icon-link:active { transform: scale(0.92); }
.move-btn { display: none; }

.song-meta {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 5px;
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
  pointer-events: none;
}
.song-meta li {
  padding: 1px 8px;
  border-radius: 999px;
  background: var(--field);
  color: var(--ink-soft);
  font-size: 12px;
}
.song-meta li.dots { display: inline-flex; gap: 3px; padding: 0 4px; background: none; }
.dots i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  border: 1.2px solid var(--accent);
}
.dots i.on { background: var(--accent); }

/* ===================== Footer ===================== */

.foot {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin: 24px var(--gutter) 0;
  padding: 14px 0 max(22px, env(safe-area-inset-bottom));
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}
.foot-summary { margin-right: auto; }
.foot-actions { display: flex; flex-wrap: wrap; gap: 2px; margin-right: -10px; }

.text-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 38px;
  padding: 0 12px;
  border: 0;
  border-radius: 10px;
  background: none;
  color: var(--ink-soft);
  font-size: 14px;
  transition: background 0.2s, color 0.2s;
}
.text-btn:hover { background: var(--field); color: var(--ink); }
.text-btn.danger { color: var(--danger); }

/* ===================== Tabs (mobile) ===================== */

.tabs { display: none; }

/* ===================== Sheets (dialogs) ===================== */

.sheet {
  width: min(560px, calc(100% - 32px));
  max-height: min(860px, calc(100dvh - 48px));
  padding: 0;
  border: 0;
  border-radius: 22px;
  background: var(--paper);
  color: var(--ink);
  box-shadow: var(--shadow-lift);
  overflow: hidden;
}
.sheet.small { width: min(400px, calc(100% - 32px)); }
.sheet[open] { animation: sheet-in 0.28s var(--ease); }
.sheet.closing { animation: sheet-out 0.18s ease-in forwards; }
.sheet::backdrop { background: var(--scrim); animation: fade 0.28s var(--ease); }
.sheet.closing::backdrop { animation: fade-out 0.18s ease-in forwards; }
@keyframes sheet-in { from { opacity: 0; transform: translateY(14px) scale(0.98); } }
@keyframes sheet-out { to { opacity: 0; transform: translateY(10px) scale(0.98); } }
@keyframes fade { from { opacity: 0; } }
@keyframes fade-out { to { opacity: 0; } }
@keyframes rise { from { opacity: 0; transform: translateY(12px); } }

.sheet-inner {
  display: flex;
  flex-direction: column;
  max-height: inherit;
  margin: 0;
}
.sheet-inner:focus { outline: none; }
.grabber { display: none; }
.sheet-body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 26px 28px 8px;
  overscroll-behavior: contain;
}
.sheet-foot {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 18px max(16px, env(safe-area-inset-bottom));
  border-top: 1px solid var(--line);
}
.spacer { flex: 1; }
.done-btn {
  min-height: 42px;
  padding: 0 20px;
  border: 0;
  border-radius: 12px;
  background: var(--ink);
  color: var(--bg);
  font-weight: 500;
  transition: transform 0.2s var(--ease), opacity 0.2s;
}
.done-btn:active { transform: scale(0.97); }
.done-btn:disabled { opacity: 0.35; cursor: default; }
.done-btn.danger { background: var(--danger); color: #fff; }

/* Fields */
.f-title, .f-artist {
  display: block;
  width: 100%;
  border: 0;
  border-radius: 8px;
  background: none;
  outline: none;
  padding: 2px 0;
}
.f-title { font: 400 32px/1.15 var(--serif); }
.f-artist { margin-top: 2px; color: var(--ink-soft); font-size: 16px; }
.f-title::placeholder, .f-artist::placeholder { color: var(--muted); opacity: 0.7; }
.f-title:focus-visible, .f-artist:focus-visible { background: var(--field); outline: none; box-shadow: 0 0 0 6px var(--field); }

.field { margin-top: 22px; }
.field-label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* List picker */
.segmented {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  padding: 4px;
  border-radius: 13px;
  background: var(--field);
}
.segmented button {
  --accent: var(--want);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 40px;
  padding: 0 8px;
  border: 0;
  border-radius: 10px;
  background: none;
  color: var(--ink-soft);
  font-size: 14px;
  white-space: nowrap;
  transition: background 0.2s, color 0.2s, box-shadow 0.2s;
}
.segmented button::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  flex: none;
}
.segmented button[aria-checked='true'] {
  background: var(--paper);
  color: var(--ink);
  font-weight: 500;
  box-shadow: var(--shadow);
}
.segmented [data-list='practicing'] { --accent: var(--practicing); }
.segmented [data-list='learned'] { --accent: var(--learned); }

/* Links */
.link-row {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-bottom: 8px;
  padding: 0 4px 0 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--field);
  transition: border-color 0.2s;
}
.link-row:focus-within { border-color: var(--line-strong); }
.link-icon { display: grid; color: var(--muted); }
.link-row input {
  flex: 1;
  min-width: 0;
  height: 44px;
  padding: 0 4px;
  border: 0;
  background: none;
  outline: none;
  font-size: 15px;
}
.open-link {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  display: grid;
  place-items: center;
  color: var(--ink-soft);
  transition: background 0.2s;
}
.open-link:hover { background: var(--line); color: var(--ink); }
.open-link:not([href]) { visibility: hidden; }

/* Key / capo / tuning / difficulty */
.details {
  display: grid;
  grid-template-columns: 1fr 1fr 2fr auto;
  gap: 10px;
  margin-top: 14px;
}
.mini { display: block; min-width: 0; }
.mini input {
  width: 100%;
  height: 44px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--field);
  outline: none;
  font-size: 15px;
  transition: border-color 0.2s;
}
.mini input:focus { border-color: var(--line-strong); }
.diff { display: flex; align-items: center; height: 44px; }
.diff button {
  width: 30px;
  height: 44px;
  border: 0;
  background: none;
  display: grid;
  place-items: center;
}
.diff button::before {
  content: '';
  width: 13px;
  height: 13px;
  border-radius: 50%;
  border: 1.6px solid var(--line-strong);
  transition: background 0.2s, border-color 0.2s, transform 0.2s var(--ease);
}
.diff button.on::before { background: var(--ink-soft); border-color: var(--ink-soft); }
.diff button:hover::before { transform: scale(1.15); }

/* Notes */
.f-notes {
  display: block;
  width: 100%;
  min-height: 110px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--field);
  outline: none;
  resize: none;
  font-size: 15px;
  line-height: 1.6;
  transition: border-color 0.2s;
}
.f-notes:focus { border-color: var(--line-strong); }
.saved {
  margin-left: auto;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: none;
  color: var(--learned);
  opacity: 0;
  transition: opacity 0.3s;
}
.saved.show { opacity: 1; }

.dates { margin: 18px 0 8px; color: var(--muted); font-size: 13px; }

/* Move to… and confirm */
.small-title { margin: 0 0 14px; font: 400 26px/1.2 var(--serif); }
.move-list { display: grid; gap: 8px; }
.move-list button {
  --accent: var(--want);
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 54px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--field);
  font-size: 16px;
  text-align: left;
  transition: border-color 0.2s, background 0.2s;
}
.move-list button::before {
  content: '';
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
}
.move-list button:hover { border-color: var(--accent); }
.move-list button[aria-current='true'] { opacity: 0.45; cursor: default; }
.move-list button small { margin-left: auto; color: var(--muted); font-size: 13px; }
.move-list [data-list='practicing'] { --accent: var(--practicing); }
.move-list [data-list='learned'] { --accent: var(--learned); }
.confirm-msg { margin: 0 0 6px; font-size: 16px; }

/* What is this? (demo) */
.info-art {
  position: relative;
  height: 150px;
  margin: 12px 12px 0;
  border-radius: 14px;
  background: var(--field);
  overflow: hidden;
}
.info-cols {
  position: absolute;
  inset: 18px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.info-cols span {
  --accent: var(--want);
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 10px 8px;
  border: 1px solid var(--line);
  border-radius: 10px;
}
.info-cols span:nth-child(2) { --accent: var(--practicing); }
.info-cols span:nth-child(3) { --accent: var(--learned); }
.info-cols b { font-size: 11px; font-weight: 600; color: var(--muted); }
.info-cols i, .info-mover {
  display: block;
  height: 26px;
  border-radius: 7px;
  background: var(--paper);
  box-shadow: var(--shadow);
  border-left: 3px solid var(--accent);
}
/* The travelling song: one column per beat, Want → Practicing → Learned */
.info-mover {
  --accent: var(--want);
  position: absolute;
  left: 27px;
  top: 88px;
  width: calc((100% - 36px - 20px) / 3 - 18px);
  animation: travel 7s var(--ease) infinite;
}
@keyframes travel {
  0%, 18%   { transform: translateX(0); border-left-color: var(--want); }
  30%, 52%  { transform: translateX(calc(100% + 28px)); border-left-color: var(--practicing); }
  64%, 90%  { transform: translateX(calc(200% + 56px)); border-left-color: var(--learned); opacity: 1; }
  96%       { transform: translateX(calc(200% + 56px)); opacity: 0; }
  97%       { transform: translateX(0); opacity: 0; }
  100%      { transform: translateX(0); opacity: 1; }
}
.info-title { margin: 0 0 12px; font: 400 28px/1.15 var(--serif); }
.info-list { margin: 0; padding: 0 0 0 18px; color: var(--ink-soft); }
.info-list li { margin: 6px 0; }
.info-list b { color: var(--ink); font-weight: 600; }
.info-note { margin: 14px 0 6px; color: var(--muted); font-size: 13px; }

/* ===================== Toast ===================== */

.toast {
  position: fixed;
  left: 50%;
  bottom: max(24px, env(safe-area-inset-bottom));
  z-index: 10;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--bg);
  font-size: 14px;
  box-shadow: var(--shadow-lift);
  opacity: 0;
  transform: translate(-50%, 10px);
  pointer-events: none;
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ===================== Touch devices ===================== */

@media (hover: none) {
  .song:hover { transform: none; box-shadow: var(--shadow); }
  .move-btn { display: grid; }
  .icon-link { width: 44px; height: 44px; }
  .search kbd { display: none; }
}

/* ===================== Phone ===================== */

@media (max-width: 760px) {
  :root { --gutter: max(16px, env(safe-area-inset-left)); }

  .topbar { flex-wrap: wrap; gap: 10px; padding-top: max(16px, env(safe-area-inset-top)); padding-bottom: 12px; }
  .brand h1 { font-size: 30px; }
  .search { order: 3; width: 100%; height: 46px; }
  .search input { font-size: 16px; }

  /* The add button floats at the bottom, within thumb reach. */
  .add-btn {
    position: fixed;
    right: max(16px, env(safe-area-inset-right));
    bottom: max(18px, calc(env(safe-area-inset-bottom) + 8px));
    z-index: 5;
    height: 54px;
    padding: 0 22px 0 18px;
    border-radius: 999px;
    font-size: 16px;
    box-shadow: var(--shadow-lift);
  }
  .icon-btn { width: 44px; height: 44px; }

  .banner { margin-bottom: 12px; font-size: 13.5px; }

  .tabs {
    position: sticky;
    top: 0;
    z-index: 4;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 4px;
    margin: 0 var(--gutter) 14px;
    padding: 4px;
    border-radius: 14px;
    background: color-mix(in srgb, var(--bg) 85%, transparent);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: inset 0 0 0 1px var(--line);
  }
  .tab {
    --accent: var(--want);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-height: 46px;
    padding: 0 4px;
    border: 0;
    border-radius: 11px;
    background: none;
    color: var(--ink-soft);
    font-size: 14px;
    white-space: nowrap;
    transition: background 0.2s, color 0.2s;
  }
  .tab[data-list='practicing'] { --accent: var(--practicing); }
  .tab[data-list='learned'] { --accent: var(--learned); }
  .tab[aria-selected='true'] { background: var(--paper); color: var(--ink); font-weight: 500; box-shadow: var(--shadow); }
  .tab .count { min-width: 22px; padding: 0 6px; }

  .board { display: block; }
  .column { min-height: 0; padding: 0; border: 0; background: none; }
  .column.drop-target { background: none; }
  .column-head { display: none; }
  .board[data-tab='want'] .column:not([data-list='want']),
  .board[data-tab='practicing'] .column:not([data-list='practicing']),
  .board[data-tab='learned'] .column:not([data-list='learned']) { display: none; }
  .column { animation: fade 0.25s var(--ease); }
  .song { padding: 14px 10px 14px 16px; }
  .song-title { font-size: 22px; }

  .toast { bottom: max(88px, calc(env(safe-area-inset-bottom) + 80px)); max-width: calc(100% - 32px); }

  /* Leave room so the floating button never covers the footer. */
  .foot { margin-top: 28px; padding-bottom: max(96px, calc(env(safe-area-inset-bottom) + 84px)); }

  /* Sheets become bottom sheets. */
  .sheet, .sheet.small {
    width: 100%;
    max-width: 100%;
    max-height: 92dvh;
    margin: auto 0 0;
    border-radius: 22px 22px 0 0;
  }
  .sheet[open] { animation: sheet-up 0.32s var(--ease); }
  .sheet.closing { animation: sheet-down 0.2s ease-in forwards; }
  @keyframes sheet-up { from { transform: translateY(100%); } }
  @keyframes sheet-down { to { transform: translateY(100%); } }
  .grabber {
    display: block;
    flex: none;
    width: 40px;
    height: 5px;
    margin: 10px auto 0;
    border-radius: 3px;
    background: var(--line-strong);
  }
  .sheet-body { padding: 16px 20px 8px; }
  .sheet-foot { padding-left: 12px; padding-right: 16px; }
  .f-title { font-size: 30px; }
  .details { grid-template-columns: 1fr 1fr; }
  .mini.wide { grid-column: span 2; }
  .mini input { font-size: 16px; }
  .link-row input, .f-notes { font-size: 16px; }
  .text-btn { min-height: 44px; }
  .done-btn { min-height: 46px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after, .sheet::backdrop {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}