/* Estilo de Colabo (portada, juego y creador): sobrio, estilo juego diario, con colores sólidos tipo
   Spotify: fondo casi negro, superficies grises y el verde para la acción principal y lo que importa. */
:root {
  --ground: #121212;
  --surface: #1e1e1e;
  --raised: #2a2a2a;
  --active: #2f2f2f;
  --border: #2a2a2a;
  --rule: #282828;
  --control: #727272;
  --text: #ffffff;
  --muted: #b3b3b3;
  --faint: #a0a0a0;
  --accent: #1db954;            /* verde Spotify */
  --accent-hover: #1ed760;
  --accent-ink: #1ed760;
  --on-accent: #000000;
  --positive: #1ed760;
  --negative: #f15e6c;

  --radius-card: 8px;
  --radius-control: 999px;      /* botones en píldora, como Spotify */
  --radius-chip: 4px;
  --gap: 16px;
  --card-pad: 20px;
  --control-height: 40px;
  --font: "Figtree", system-ui, -apple-system, "Segoe UI", sans-serif;
  --fs-title: 24px;
  --fs-section: 18px;
  --fs-body: 15px;
  --fs-small: 13px;
  color-scheme: dark;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body {
  margin: 0;
  background: var(--ground);
  color: var(--text);
  font: 400 var(--fs-body) / 1.5 var(--font);
  -webkit-font-smoothing: antialiased;
}
/* Una columna centrada: 920 = 3 × 296 + 2 × 16 (la rejilla de colaboradores cierra en los dos bordes). */
main { max-width: 920px; margin: 0 auto; padding: 24px 24px 48px; }
.accent { color: var(--accent); }
a { color: var(--accent); }
a, button, summary, .card { touch-action: manipulation; -webkit-tap-highlight-color: transparent; }
h1, h2, h3 { text-wrap: balance; }
.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 10;
  padding: 8px 14px;
  border-radius: var(--radius-control);
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 700;
  translate: -999px 0;
}
.skip-link:focus-visible { translate: none; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
/* Durante la partida, sin «tirar para recargar» del móvil: recargar abandona la partida. */
html.playing, html.playing body { overscroll-behavior-y: contain; }

/* ---- Barra superior: marca y los tres destinos ---- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap);
  height: 48px;
  margin: -24px 0 24px;
}
.wordmark { display: inline-flex; align-items: center; gap: 8px; color: var(--text); font-size: 18px; font-weight: 800; letter-spacing: -0.02em; text-decoration: none; }
.wordmark img { width: 24px; height: 24px; }
.topbar nav ul { display: flex; gap: 4px; margin: 0; padding: 0; list-style: none; }
.topbar nav a {
  display: inline-flex;
  align-items: center;
  height: 32px;
  padding: 0 10px;
  border-radius: var(--radius-control);
  color: var(--muted);
  text-decoration: none;
}
.topbar nav a:hover { color: var(--text); background: var(--raised); }
.topbar nav a[aria-current="page"] { color: var(--text); background: var(--active); }
.topbar nav { display: flex; align-items: center; gap: 4px; }

/* ---- Cómo se juega (js/help.js) ---- */
.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  border: 1px solid var(--control);
  border-radius: 50%;
  background: none;
  color: var(--muted);
  font: 700 15px / 1 var(--font);
  cursor: pointer;
}
.icon-button:hover { border-color: var(--text); color: var(--text); }
dialog.help {
  width: min(480px, calc(100% - 32px));
  max-height: calc(100% - 32px);
  padding: 24px;
  border: 0;
  border-radius: var(--radius-card);
  background: var(--surface);
  color: var(--text);
  text-align: left;
}
dialog.help:focus { outline: none; }
dialog.help::backdrop { background: rgb(0 0 0 / 0.7); }
dialog.help h2 { margin: 0 0 12px; font-size: 22px; font-weight: 800; }
dialog.help h3 { margin: 20px 0 8px; font-size: var(--fs-body); font-weight: 700; }
dialog.help p { margin: 0 0 8px; }
dialog.help ul { margin: 0; padding-left: 20px; }
dialog.help li { margin: 0 0 6px; }
dialog.help li::marker { color: var(--accent); }
dialog.help a { color: var(--accent-ink); }
dialog.help .help-privacy { margin: 12px 0 0; color: var(--faint); font-size: 12px; line-height: 1.4; }
dialog.help .help-close { float: right; margin: -8px -8px 0 8px; }
dialog.help .help-close .icon-button { border: 0; }
dialog.help .button.primary { width: 100%; margin-top: 16px; }

/* ---- Títulos ---- */
h1, .page-title { margin: 8px 0 4px; font-size: var(--fs-title); font-weight: 800; letter-spacing: -0.01em; line-height: 1.25; }
h2 { font-size: var(--fs-section); font-weight: 700; line-height: 1.3; }
.subtitle { margin: 0 0 24px; color: var(--muted); }
.meta { color: var(--muted); font-size: var(--fs-small); }
.status { margin: 24px 0 0; color: var(--muted); }
.status.error { color: var(--negative); }
.privacy { margin: 48px 0 0; color: var(--faint); font-size: var(--fs-small); }

/* ---- Botones: en píldora; el principal, verde ---- */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--control-height);
  padding: 0 16px;
  border: 1px solid var(--control);
  border-radius: var(--radius-control);
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 120ms, border-color 120ms, transform 120ms;
}
.button:hover:not(:disabled) { border-color: var(--text); transform: scale(1.03); }
.button:active:not(:disabled) { transform: translateY(1px); }
.button:disabled { color: var(--faint); background: var(--raised); cursor: default; }
.button.primary { border-color: var(--accent); background: var(--accent); color: var(--on-accent); }
.button.primary:hover:not(:disabled) { border-color: var(--accent-hover); background: var(--accent-hover); }
.button.primary:disabled { border-color: var(--raised); background: var(--raised); color: var(--faint); }
.button.big { min-height: 52px; padding: 0 32px; font-size: 17px; }

/* ---- Campos ---- */
input {
  width: 100%;
  height: var(--control-height);
  padding: 0 12px;
  border: 1px solid transparent;
  border-radius: var(--radius-control);
  background: var(--raised);
  color: var(--text);
  font: inherit;
}
input::placeholder { color: var(--faint); }
input:hover { border-color: #3e3e3e; }
input:focus { outline: 2px solid var(--text); outline-offset: -1px; border-color: transparent; }

/* ---- Lista de retos ---- */
.challenges { display: grid; margin: 0; padding: 0; list-style: none; background: var(--surface); border-radius: var(--radius-card); overflow: hidden; }
.challenge { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 64px; padding: 12px 16px; }
.challenge + .challenge { border-top: 1px solid var(--rule); }
.challenge:hover { background: var(--raised); }
.challenge.highlight { background: var(--active); box-shadow: inset 3px 0 0 var(--accent); }
.challenge strong { font-weight: 500; }
.challenge-text { flex: 1; min-width: 0; overflow-wrap: break-word; }
.challenge-media { flex: none; display: flex; }
.challenge-media .avatar + .avatar { margin-left: -10px; outline: 2px solid var(--surface); }
.challenge:hover .challenge-media .avatar + .avatar, .challenge.highlight .challenge-media .avatar + .avatar { outline-color: var(--raised); }
.challenge .button { border-color: var(--accent); background: var(--accent); color: var(--on-accent); }
.challenge .button:hover:not(:disabled) { border-color: var(--accent-hover); background: var(--accent-hover); }
.challenge .button:disabled { border-color: var(--raised); background: var(--raised); color: var(--faint); }
.challenge-text .meta { margin-top: 2px; }
.challenge .button { flex: none; }

/* ---- Tarjeta de un reto antes de empezar (reto de jugador) ---- */
.daily-card {
  display: grid;
  justify-items: center;
  gap: 12px;
  max-width: 560px;
  margin: 24px auto 0;
  padding: 28px 24px;
  border-radius: var(--radius-card);
  background: var(--surface);
  text-align: center;
}
.daily-label { color: var(--accent); font-size: 14px; font-weight: 700; }
.daily-artists { display: flex; align-items: center; gap: 20px; margin: 4px 0; }
.daily-arrow { color: var(--muted); font-size: 28px; }
.daily-card strong, .daily-route { margin: 0; font-size: var(--fs-title); font-weight: 800; line-height: 1.25; }
.daily-card .meta { margin: 0; font-size: var(--fs-body); }
.daily-card .button { min-height: 44px; padding: 0 24px; }

/* ---- Partida: la salida y la meta, con sus fotos ---- */
.goal {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 16px;
  padding: 16px var(--card-pad);
  border-radius: var(--radius-card);
  background: var(--surface);
}
.goal p { margin: 0; }
.goal-text { text-align: center; }
.goal-artist { display: grid; justify-items: center; gap: 4px; margin: 0; }
.goal-artist figcaption { color: var(--muted); font-size: var(--fs-small); }
.goal .route { font-size: var(--fs-section); font-weight: 700; }
.goal .timer { margin-top: 4px; color: var(--accent); font-size: 22px; font-weight: 700; font-variant-numeric: tabular-nums; }

/* ---- El camino recorrido: una cadena de artistas ---- */
.toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 16px 0 0; }
.toolbar .spacer { flex: 1; }
.path { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin: 16px 0 0; padding: 0; list-style: none; color: var(--muted); }
.path li { display: inline-flex; align-items: center; gap: 6px; }
.path li:not(:last-child)::after { content: "→"; color: var(--accent); }
.path li:last-child { color: var(--text); font-weight: 500; }
.path li:last-child .avatar { outline: 2px solid var(--accent); outline-offset: 1px; }
.path-step { display: inline-flex; align-items: center; gap: 6px; padding: 0; border: 0; background: none; color: inherit; font: inherit; cursor: pointer; }
.path-step span:last-child { text-decoration: underline dotted; text-underline-offset: 3px; }
.path-step:hover { color: var(--accent); }

/* ---- Fotos de artistas ---- */
.avatar {
  position: relative;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  overflow: hidden;
  background: var(--raised);
  color: var(--accent);
  font-weight: 700;
}
.avatar img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.avatar.small { width: 28px; height: 28px; font-size: 12px; }
.avatar.medium { width: 56px; height: 56px; font-size: 22px; }
.avatar.large { width: 88px; height: 88px; font-size: 32px; }

/* ---- Colaboradores del artista actual: la rejilla de fotos es el bloque grande de la pantalla ---- */
section h2 { margin: 32px 0 4px; }
.list-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin: 32px 0 4px; }
section .list-heading h2 { margin: 0; }
.current-artist { display: flex; align-items: center; gap: 12px; margin: 8px 0 12px; }
.count { margin: 0; color: var(--muted); }
.reorder { flex: none; min-height: 32px; padding: 0 12px; font-size: var(--fs-small); }
.filter { margin: 0 0 16px; }
.progress { margin: 0 0 16px; color: var(--muted); font-size: var(--fs-small); }
.progress-track { height: 6px; margin-bottom: 6px; border-radius: 3px; background: var(--active); overflow: hidden; }
.progress-fill { height: 100%; width: 0; background: var(--accent); transition: width 0.4s; }
ol.collaborators { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); margin: 0; padding: 0; list-style: none; }
li.collaborator { position: relative; aspect-ratio: 1; border-radius: var(--radius-card); overflow: hidden; background: var(--raised); }
.card {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: none;
  color: #fff;
  font: inherit;
  text-align: left;
  cursor: pointer;
}
.card:focus-visible { outline: 3px solid var(--accent); outline-offset: -3px; }
.avatar.cover { position: absolute; inset: 0; width: 100%; height: 100%; border-radius: 0; font-size: 48px; }
.avatar.cover img { transition: transform 300ms; }
.card:hover .avatar.cover img { transform: scale(1.04); }
.card:active .avatar.cover img { transform: scale(0.99); }
.card-info {
  position: absolute;
  inset: auto 0 0;
  display: grid;
  gap: 2px;
  padding: 32px 12px 10px;
  background: linear-gradient(transparent, rgb(0 0 0 / 0.7)); /* taste-skill-ignore: scrim neutro bajo el nombre */
}
.card .name { display: -webkit-box; overflow: hidden; -webkit-box-orient: vertical; -webkit-line-clamp: 2; font-size: 16px; font-weight: 500; line-height: 1.25; }
.card .tracks { color: rgb(255 255 255 / 0.85); font-size: var(--fs-small); font-variant-numeric: tabular-nums; }
.rank, .deezer-link {
  position: absolute;
  top: 8px;
  padding: 1px 6px;
  border-radius: var(--radius-chip);
  background: rgb(0 0 0 / 0.65);
  color: var(--text);
  font-size: 12px;
  font-weight: 700;
}
.rank { left: 8px; font-variant-numeric: tabular-nums; }
.deezer-link { right: 8px; text-decoration: none; }
.deezer-link { color: var(--muted); }
.deezer-link:hover { color: var(--text); }
.loading-more { margin: 16px 0 0; color: var(--muted); text-align: center; }
.downloading { display: flex; align-items: center; justify-content: center; gap: 10px; margin: 20px 0 0; color: var(--muted); font-size: var(--fs-small); }
.downloading[hidden] { display: none; }
.spinner { flex: none; width: 18px; height: 18px; border: 2px solid var(--active); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.sentinel { height: 1px; }
.scroll-more {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  margin: 16px auto 0;
  padding: 0;
  border: 1px solid var(--control);
  border-radius: 50%;
  background: var(--surface);
  color: var(--accent);
  cursor: pointer;
  animation: nudge 1.6s ease-in-out infinite;
}
.scroll-more:hover { border-color: var(--accent); }
@keyframes nudge { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(4px); } }
@media (prefers-reduced-motion: reduce) {
  .scroll-more { animation: none; }
  .spinner { animation-duration: 2.4s; }
  .button, .card .avatar.cover img { transition: none; }
}

/* ---- Resultado ---- */
.result { text-align: center; }
.result h2 { margin: 16px 0 0; font-size: var(--fs-title); }
.result .score { margin: 8px 0; font-size: 32px; font-weight: 800; font-variant-numeric: tabular-nums; }
.result .score.perfect { color: var(--positive); }
.result h3 { margin: 28px 0 8px; font-size: var(--fs-section); font-weight: 600; }
.result .path { justify-content: center; }
.result .result-time { margin: 8px 0 0; font-size: 22px; font-weight: 500; font-variant-numeric: tabular-nums; }
.result .record { margin: 6px 0 0; color: var(--muted); font-variant-numeric: tabular-nums; }
.result .record.new { color: var(--positive); font-weight: 500; }
.result .share { margin-top: 28px; padding-top: 4px; border-top: 1px solid var(--rule); }
.song-path { display: inline-block; max-width: 100%; margin: 8px 0 0; padding: 0; list-style: none; text-align: left; overflow-wrap: anywhere; }
.song-path .artist { font-weight: 500; }
.song-path .songs { margin: 4px 0 4px 6px; padding: 2px 0 2px 14px; border-left: 2px solid var(--accent); color: var(--muted); font-size: var(--fs-small); }

/* ---- Clasificación ---- */
.daily-ranking { margin-top: 16px; }
.daily-ranks { display: flex; justify-content: center; gap: 32px; margin: 8px 0 16px; }
.daily-ranks div { display: grid; gap: 2px; }
.daily-ranks strong { color: var(--accent); font-size: 32px; font-weight: 800; font-variant-numeric: tabular-nums; }
.daily-ranks span { color: var(--muted); font-size: var(--fs-small); }
.ranking { width: 100%; max-width: 560px; margin: 0 auto; border-collapse: collapse; font-size: 14px; font-variant-numeric: tabular-nums; }
.ranking th, .ranking td { height: 40px; padding: 0 8px; text-align: right; white-space: nowrap; }
.ranking th { color: var(--muted); font-size: var(--fs-small); font-weight: 400; }
.ranking th:nth-child(2) { text-align: left; }
.ranking td { border-top: 1px solid var(--rule); }
.ranking tr.you td { color: var(--accent); font-weight: 700; }
/* El nombre ocupa el hueco que dejan las demás columnas y se corta con "…" si no cabe. */
.ranking td.player-name { width: 100%; max-width: 0; overflow: hidden; text-overflow: ellipsis; text-align: left; }
.ranking .attempts { display: block; color: var(--muted); font-size: 12px; font-weight: 400; line-height: 1.2; }
.ranking .path-toggle {
  min-height: 28px;
  padding: 0 10px;
  border: 1px solid var(--control);
  border-radius: var(--radius-control);
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
}
.ranking .path-toggle:hover { border-color: var(--muted); }
.ranking .path-toggle[aria-expanded="true"] { border-color: var(--accent); color: var(--accent); }
.ranking tr.ranking-path td { height: auto; padding: 0 8px 12px; border-top: 0; white-space: normal; text-align: left; }
.ranking tr.ranking-path .song-path { display: block; margin: 4px 0 0; padding: 10px 12px; border-radius: var(--radius-card); background: var(--raised); }
.daily-name { display: grid; justify-items: center; gap: 8px; max-width: 400px; margin: 20px auto 0; }
.daily-name label { font-weight: 500; }
.daily-name-row { display: flex; gap: 8px; width: 100%; }
.daily-name-row input { flex: 1; min-width: 0; }
.daily-name .meta { margin: 0; }
.daily-name .meta.error { color: var(--negative); }
#daily-name-locked { margin: 16px 0 0; }

/* ---- Historial del reto diario ---- */
.daily-history { width: 100%; max-width: 560px; margin: 24px auto 0; text-align: left; }
.daily-history h3 { text-align: center; }
.history-summary { margin: 8px 0; color: var(--muted); text-align: center; }
.history-summary strong { color: var(--text); }
.history-list { margin: 0; padding: 0; list-style: none; font-variant-numeric: tabular-nums; background: var(--surface); border-radius: var(--radius-card); }
.history-list li { display: flex; align-items: baseline; gap: 12px; padding: 10px 14px; font-size: 14px; }
.history-list li + li { border-top: 1px solid var(--rule); }
.history-day { flex: none; width: 56px; color: var(--muted); }
.history-route { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.history-position { flex: none; font-weight: 500; }
.history-list li.win .history-position { color: var(--accent); }

/* ---- Portada: una pantalla, el reto del día en el centro ---- */
main.home { max-width: 560px; text-align: center; }
.home .topbar { justify-content: flex-end; }
.home-title img { display: block; width: 56px; height: 56px; margin: 0 auto 12px; }
.home-title { margin: 24px 0 8px; font-size: clamp(40px, 10vw, 56px); font-weight: 800; letter-spacing: -0.03em; line-height: 1; }
.home-intro { max-width: 440px; margin: 0 auto 28px; color: var(--muted); font-size: 18px; }
.home .daily-card { margin-top: 0; padding: 28px 24px; }
.home .avatar.large { width: 120px; height: 120px; font-size: 44px; }
.home .daily-card .meta { font-size: var(--fs-body); }
.home .daily-label { margin-top: -6px; }
/* La tarjeta del reto aparece con una entrada suave cuando llega (sin movimiento si se pide reducirlo). */
.home .daily-card:not([hidden]) { animation: rise 420ms cubic-bezier(0.22, 1, 0.36, 1) both; }
.home .home-links { animation: rise 420ms 80ms cubic-bezier(0.22, 1, 0.36, 1) both; }
@keyframes rise { from { opacity: 0; transform: translateY(12px); } }
@media (prefers-reduced-motion: reduce) {
  .home .daily-card:not([hidden]), .home .home-links { animation: none; }
}
.home .daily-card .button { min-width: 200px; margin-top: 4px; }
.home-links { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 16px; }
.home .daily-history { margin-top: 28px; }
.home .daily-history summary { color: var(--muted); font-weight: 700; cursor: pointer; }
.home .daily-history summary:hover { color: var(--text); }
.home .daily-history .history-list { margin-top: 12px; }
.home .privacy { margin-top: 40px; }

/* ---- Crear reto ---- */
.intro-card { margin-top: 24px; }
#start { margin-top: 24px; }
.artist-results { display: flex; flex-wrap: wrap; gap: 8px 16px; margin: 12px 0 0; padding: 0; list-style: none; }
.creator-toolbar { flex-wrap: nowrap; align-items: stretch; }
.creator-toolbar .button { flex: none; }
.creator-toolbar #creator-check { flex: 1; min-width: 0; white-space: normal; line-height: 1.25; }
.draft { margin: 16px 0 0; padding: var(--card-pad); border-radius: var(--radius-card); background: var(--surface); }
.draft .status { margin: 0 0 8px; }
.draft label { display: block; margin: 16px 0 8px; font-weight: 500; }
.created-link { color: var(--accent); overflow-wrap: anywhere; }

/* ---- Teléfono ---- */
@media (max-width: 640px) {
  main { padding: 16px 16px 40px; }
  .topbar { margin: -16px 0 16px; }
  .topbar nav li:not(:last-child) { display: none; }
  h1, .page-title { font-size: 22px; }
  ol.collaborators { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .goal { gap: 10px; padding: 12px; }
  .avatar.large { width: 64px; height: 64px; font-size: 24px; }
  .daily-card { padding: 20px 16px; }
  .home .avatar.large { width: 96px; height: 96px; font-size: 36px; }
  .home-links { grid-template-columns: 1fr; }
  .daily-artists { gap: 12px; }
  .creator-toolbar .button { padding: 0 12px; }
  .ranking { font-size: 13px; }
  .ranking th, .ranking td { padding: 0 4px; }
  .daily-ranks { gap: 16px; }
}