/* ==========================================================================
   LORFHEO · Radiografía — estilos
   Identidad: escenario oscuro, tipografía de póster (Anton), tarjetas de roster
   sobre papel. Hereda la paleta de lorfheo.com (menta + rosa) con voz propia.
   ========================================================================== */

:root {
  --bg: #07080f;
  --bg-2: #0d0f1a;
  --surface: #12141f;
  --surface-2: #191c2b;
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.18);
  --text: #eef1f6;
  --muted: #a3abbf;
  --mint: #7af0c4;
  --mint-ink: #05261b;
  --pink: #ff5f9f;
  --pink-ink: #2b0716;
  --paper: #f3efe6;
  --paper-ink: #17161a;
  --danger: #ff7b7b;
  --warn: #ffd166;
  --shadow-lg: 0 30px 80px rgba(0, 0, 0, 0.65);
  --shadow-md: 0 14px 40px rgba(0, 0, 0, 0.45);
  --font-display: "Anton", "Bahnschrift", "Oswald", Impact, sans-serif;
  --font-body: "Inter", "Helvetica Neue", Arial, sans-serif;
  --radius: 14px;
  --radius-lg: 20px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 220ms;
  --z-toast: 100;
  --z-footer: 40;
  --z-grain: 5;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
button, input, textarea { font: inherit; color: inherit; }
button { cursor: pointer; touch-action: manipulation; }
h1, h2, h3, p { margin: 0; }
ol, ul { margin: 0; padding: 0; }

.display {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  line-height: 0.92;
}
.accent { color: var(--mint); }

.skip-link {
  position: absolute; left: 1rem; top: -4rem; z-index: 200;
  background: var(--mint); color: var(--mint-ink); padding: 0.6rem 1rem; border-radius: 8px; font-weight: 600;
}
.skip-link:focus { top: 1rem; }

/* ---------- Fondo ---------- */
.glow {
  position: fixed; inset: auto; width: 60vmax; height: 60vmax; border-radius: 50%;
  filter: blur(90px); pointer-events: none; z-index: 0; opacity: 0.55;
}
.glow-a { top: -25vmax; left: -20vmax; background: radial-gradient(circle, rgba(122, 240, 196, 0.22), transparent 60%); }
.glow-b { bottom: -30vmax; right: -20vmax; background: radial-gradient(circle, rgba(255, 95, 159, 0.2), transparent 60%); }
.grain {
  position: fixed; inset: 0; pointer-events: none; z-index: var(--z-grain); opacity: 0.07; mix-blend-mode: screen;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

#app { position: relative; z-index: 1; }
.screen { min-height: 100dvh; display: flex; flex-direction: column; }
.screen[hidden] { display: none; }

/* ---------- Barra superior ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: clamp(1rem, 2.5vw, 1.5rem) clamp(1.25rem, 5vw, 4rem);
}
.topbar-logo { height: 34px; width: auto; }
.topbar-tag { font-size: 0.8rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--muted); }

.user-chip {
  display: flex; align-items: center; gap: 0.6rem; padding: 0.35rem 0.4rem 0.35rem 0.4rem;
  background: var(--surface); border: 1px solid var(--border); border-radius: 999px;
}
.chip-avatar { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; object-position: center 20%; background: var(--paper); }
.chip-name { font-weight: 600; padding-right: 0.25rem; }

/* ---------- Texto ---------- */
.eyebrow { font-size: 0.78rem; letter-spacing: 0.24em; text-transform: uppercase; color: var(--muted); font-weight: 600; }
.lede { color: var(--muted); font-size: clamp(1rem, 1.4vw, 1.15rem); max-width: 56ch; }
.helper { color: var(--muted); font-size: 0.9rem; }
.field-error { color: var(--danger); font-size: 0.9rem; min-height: 1.3em; font-weight: 500; }
.field-error:empty { display: none; }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  min-height: 48px; padding: 0 1.5rem; border-radius: 999px; border: 1px solid transparent;
  font-weight: 600; font-size: 1rem; letter-spacing: 0.01em; white-space: nowrap;
  transition: transform 150ms var(--ease-out), background-color var(--dur), border-color var(--dur), color var(--dur), opacity var(--dur);
}
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; transform: none; }
.btn-primary { background: var(--mint); color: var(--mint-ink); }
.btn-primary:hover:not(:disabled) { background: #93f5d1; }
.btn-outline { background: transparent; border-color: var(--border-strong); color: var(--text); }
.btn-outline:hover:not(:disabled) { border-color: var(--mint); color: var(--mint); }
.btn-ghost { background: transparent; color: var(--muted); }
.btn-ghost:hover:not(:disabled) { color: var(--text); background: rgba(255, 255, 255, 0.05); }
.btn-back { padding-left: 0.9rem; }
.btn .icon { width: 20px; height: 20px; }

.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 56px; height: 56px; border-radius: 50%; border: 1px solid var(--border-strong);
  background: rgba(255, 255, 255, 0.03); color: var(--text);
  transition: border-color var(--dur), color var(--dur), background-color var(--dur), transform 150ms var(--ease-out);
}
.icon-btn:hover { border-color: var(--mint); color: var(--mint); }
.icon-btn:active { transform: scale(0.94); }
.icon-btn .icon { width: 26px; height: 26px; }
.icon-btn-sm { width: 40px; height: 40px; border-color: transparent; }
.icon-btn-sm .icon { width: 20px; height: 20px; }
.icon { display: block; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

:focus-visible { outline: 3px solid var(--mint); outline-offset: 3px; }
.btn-primary:focus-visible { outline-color: #fff; }

/* ---------- Portada ---------- */
.cover-grid {
  flex: 1; display: grid; grid-template-columns: 1.15fr 0.85fr; align-items: center;
  gap: clamp(2rem, 6vw, 6rem);
  padding: 0 clamp(1.25rem, 5vw, 4rem) clamp(2rem, 6vw, 4rem);
}
.cover-copy { display: grid; gap: 1.5rem; }
.cover-intro, .picker, .pin { display: grid; gap: 1.25rem; }
.cover-title { font-size: clamp(3.6rem, 9vw, 8.5rem); }
.cover-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center; }

.picker-row { display: grid; grid-template-columns: 56px 1fr 56px; align-items: center; gap: 1rem; }
.picker-name { position: relative; overflow: hidden; text-align: center; padding: 0.25rem 0; }
.picker-name-text {
  display: inline-block; font-size: clamp(3.4rem, 12vw, 8rem);
  transition: transform 260ms var(--ease-out), opacity 200ms;
}
.picker-name-text.is-out-left { transform: translateX(-30%); opacity: 0; }
.picker-name-text.is-out-right { transform: translateX(30%); opacity: 0; }
.picker-underline { display: block; width: 72px; height: 6px; margin: 0.6rem auto 0; background: var(--mint); border-radius: 3px; }
.picker-dots { display: flex; justify-content: center; gap: 10px; }
.picker-dot {
  width: 12px; height: 12px; border-radius: 50%; border: 0; padding: 0;
  background: var(--border-strong); transition: transform var(--dur), background-color var(--dur);
}
.picker-dot[aria-selected="true"] { background: var(--mint); transform: scale(1.35); }
.picker-hint { color: var(--muted); font-size: 0.9rem; text-align: center; }

/* PIN */
.pin-label { font-weight: 600; }
.pin-boxes { display: flex; gap: 12px; }
.pin-box {
  -webkit-text-security: disc;
  width: 64px; height: 72px; text-align: center; font-size: 2rem; font-weight: 700;
  background: var(--surface); border: 1px solid var(--border-strong); border-radius: 14px; color: var(--text);
  transition: border-color var(--dur), background-color var(--dur);
}
.pin-box:focus { border-color: var(--mint); outline: none; box-shadow: 0 0 0 3px rgba(122, 240, 196, 0.25); }
.pin-boxes.is-error .pin-box { border-color: var(--danger); animation: shake 320ms var(--ease-out); }
@keyframes shake { 0%, 100% { transform: translateX(0); } 25% { transform: translateX(-6px); } 75% { transform: translateX(6px); } }

/* Tarjeta de roster: fotos con fondo blanco de estudio, tratadas como impresión sobre papel */
.roster-card { margin: 0; justify-self: center; width: min(100%, 460px, calc((100dvh - 13rem) * 0.72)); perspective: 1200px; }
.roster-frame {
  background: var(--paper); color: var(--paper-ink);
  padding: 12px 12px 0; border-radius: 6px; box-shadow: var(--shadow-lg), inset 0 0 0 1px rgba(0, 0, 0, 0.06);
  transform: rotate(-1.6deg); transition: transform 400ms var(--ease-out);
}
.roster-card:hover .roster-frame { transform: rotate(-0.4deg) translateY(-4px); }
.roster-frame img {
  width: 100%; height: auto; aspect-ratio: 3 / 4; object-fit: cover; object-position: center 18%;
  mix-blend-mode: multiply; filter: contrast(1.05) saturate(1.05);
  transition: opacity 180ms ease; background: var(--paper);
}
.roster-frame img.is-switching { opacity: 0; }
.roster-caption {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 10px 4px 12px; font-family: var(--font-display); text-transform: uppercase; letter-spacing: 0.08em; font-size: 1.1rem;
}
.roster-index { font-size: 0.9rem; color: #6b6870; letter-spacing: 0.12em; font-variant-numeric: tabular-nums; }

/* ---------- Página interior ---------- */
.page { width: min(100%, 880px); margin: 0 auto; padding: 0 clamp(1.25rem, 5vw, 2.5rem) 3rem; display: grid; gap: 2rem; }
.home-head { display: grid; gap: 0.9rem; padding-top: 1rem; }
.home-head .display { font-size: clamp(2.6rem, 7vw, 4.6rem); }
.progress { height: 10px; background: var(--surface-2); border-radius: 999px; overflow: hidden; border: 1px solid var(--border); }
.progress-bar { height: 100%; width: 0; background: linear-gradient(90deg, var(--mint), var(--pink)); border-radius: 999px; transition: width 500ms var(--ease-out); }
.progress-label { font-size: 0.9rem; color: var(--muted); font-variant-numeric: tabular-nums; }

/* Espina dorsal: los 10 rounds */
.spine { list-style: none; display: grid; gap: 10px; }
.spine-item {
  display: grid; grid-template-columns: 64px 1fr auto; align-items: center; gap: 1rem;
  width: 100%; text-align: left; padding: 1rem 1.15rem; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--border); color: var(--text);
  transition: border-color var(--dur), transform var(--dur) var(--ease-out), background-color var(--dur);
}
.spine-item:hover:not(:disabled) { border-color: rgba(122, 240, 196, 0.55); transform: translateX(4px); background: var(--surface-2); }
.spine-item:disabled { opacity: 0.55; cursor: not-allowed; }
.spine-item:disabled .spine-num { color: var(--muted); }
.spine-num { font-family: var(--font-display); font-size: 2.2rem; line-height: 1; color: var(--mint); font-variant-numeric: tabular-nums; }
.spine-item[data-status="submitted"] .spine-num { color: var(--pink); }
.spine-body { display: grid; gap: 0.15rem; min-width: 0; }
.spine-title { font-weight: 700; font-size: 1.1rem; }
.spine-sub { color: var(--muted); font-size: 0.9rem; }
.chip {
  display: inline-flex; align-items: center; gap: 0.4rem; padding: 0.35rem 0.7rem; border-radius: 999px;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.04em; white-space: nowrap;
  background: rgba(255, 255, 255, 0.06); color: var(--muted); border: 1px solid var(--border);
}
.chip .icon { width: 14px; height: 14px; }
.chip-ok { background: rgba(255, 95, 159, 0.14); color: var(--pink); border-color: rgba(255, 95, 159, 0.35); }
.chip-go { background: rgba(122, 240, 196, 0.14); color: var(--mint); border-color: rgba(122, 240, 196, 0.35); }
.chip-warn { background: rgba(255, 209, 102, 0.14); color: var(--warn); border-color: rgba(255, 209, 102, 0.35); }

.how { padding: 1.5rem; border-radius: var(--radius-lg); background: var(--surface); border: 1px solid var(--border); display: grid; gap: 0.75rem; }
.how h3 { font-family: var(--font-display); text-transform: uppercase; letter-spacing: 0.06em; font-weight: 400; font-size: 1.3rem; }
.how ul { list-style: none; display: grid; gap: 0.5rem; color: var(--muted); }
.how strong { color: var(--text); }

/* ---------- Round ---------- */
.topbar-round { position: sticky; top: 0; z-index: 30; background: linear-gradient(var(--bg) 70%, transparent); }
.save-status { font-size: 0.85rem; color: var(--muted); display: inline-flex; align-items: center; gap: 0.4rem; }
.save-status[data-state="saving"] { color: var(--warn); }
.save-status[data-state="saved"] { color: var(--mint); }
.save-status[data-state="error"] { color: var(--danger); }
.save-status .icon { width: 16px; height: 16px; }

.round-head { position: relative; display: grid; gap: 0.6rem; padding-top: 0.5rem; }
.round-head .display { font-size: clamp(2.8rem, 8vw, 5.2rem); }
.round-ghost {
  position: absolute; right: -0.1em; top: -0.35em; font-size: clamp(7rem, 24vw, 15rem);
  color: transparent; -webkit-text-stroke: 1px rgba(255, 255, 255, 0.12); pointer-events: none; user-select: none; line-height: 1;
}
.round-tagline { font-size: 1.15rem; font-weight: 600; }
.round-guide { color: var(--muted); max-width: 62ch; }

.tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; padding: 4px; border-radius: 999px; background: var(--surface); border: 1px solid var(--border); position: sticky; top: 64px; z-index: 20; }
.tab {
  display: grid; gap: 0.1rem; justify-items: center; padding: 0.65rem 0.75rem; border-radius: 999px; border: 0;
  background: transparent; color: var(--muted); min-height: 56px; transition: background-color var(--dur), color var(--dur);
}
.tab-title { font-weight: 700; font-size: 0.95rem; }
.tab-count { font-size: 0.78rem; font-variant-numeric: tabular-nums; opacity: 0.85; }
.tab[data-top="A"][aria-selected="true"] { background: var(--mint); color: var(--mint-ink); }
.tab[data-top="B"][aria-selected="true"] { background: var(--pink); color: var(--pink-ink); }
.tab.has-error { box-shadow: inset 0 0 0 2px var(--danger); }

.top-panel { display: grid; gap: 1.25rem; }
.top-panel[hidden] { display: none; }
.top-intro { display: grid; gap: 0.35rem; padding-left: 1rem; border-left: 4px solid var(--mint); }
.top-panel[data-top="B"] .top-intro { border-left-color: var(--pink); }
.top-intro h3 { font-family: var(--font-display); font-weight: 400; text-transform: uppercase; letter-spacing: 0.05em; font-size: 1.6rem; }
.top-intro p { color: var(--muted); }
.panel-error { padding: 0.9rem 1rem; border-radius: var(--radius); background: rgba(255, 123, 123, 0.1); border: 1px solid rgba(255, 123, 123, 0.35); color: var(--danger); font-weight: 500; }
.panel-error:empty { display: none; }

.songs { list-style: none; display: grid; gap: 12px; }
.song {
  display: grid; grid-template-columns: 56px 1fr auto; gap: 0.75rem 1rem; align-items: start;
  padding: 1rem; border-radius: var(--radius-lg); background: var(--surface); border: 1px solid var(--border);
  animation: rise 260ms var(--ease-out) both;
}
@keyframes rise { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.song-rank { font-family: var(--font-display); font-size: 2.4rem; line-height: 1; color: var(--mint); font-variant-numeric: tabular-nums; padding-top: 0.35rem; }
.top-panel[data-top="B"] .song-rank { color: var(--pink); }
.song.is-complete .song-rank::after { content: ""; display: block; width: 24px; height: 3px; margin-top: 6px; background: currentColor; border-radius: 2px; }
.song-fields { display: grid; gap: 0.75rem; min-width: 0; }
.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }
.field { display: grid; gap: 0.35rem; min-width: 0; }
.field > span { font-size: 0.8rem; font-weight: 600; letter-spacing: 0.04em; color: var(--muted); text-transform: uppercase; }
.field input, .field textarea {
  width: 100%; min-height: 46px; padding: 0.7rem 0.85rem; border-radius: 10px;
  background: var(--bg-2); border: 1px solid var(--border-strong); color: var(--text); font-size: 1rem;
  transition: border-color var(--dur), box-shadow var(--dur);
}
.field textarea { resize: vertical; min-height: 96px; line-height: 1.5; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--mint); box-shadow: 0 0 0 3px rgba(122, 240, 196, 0.2); }
.top-panel[data-top="B"] .field input:focus, .top-panel[data-top="B"] .field textarea:focus { border-color: var(--pink); box-shadow: 0 0 0 3px rgba(255, 95, 159, 0.2); }
.field input.is-invalid, .field textarea.is-invalid { border-color: var(--danger); }
.field input::placeholder, .field textarea::placeholder { color: rgba(163, 171, 191, 0.55); }
.song-tools { display: grid; gap: 6px; }
.tool-btn {
  width: 44px; height: 44px; border-radius: 10px; border: 1px solid var(--border); background: transparent; color: var(--muted);
  display: inline-flex; align-items: center; justify-content: center; transition: color var(--dur), border-color var(--dur), background-color var(--dur);
}
.tool-btn:hover:not(:disabled) { color: var(--text); border-color: var(--border-strong); background: rgba(255, 255, 255, 0.04); }
.tool-btn:disabled { opacity: 0.3; cursor: not-allowed; }
.tool-btn.danger:hover:not(:disabled) { color: var(--danger); border-color: rgba(255, 123, 123, 0.5); }
.tool-btn .icon { width: 18px; height: 18px; }
.song-error { grid-column: 2 / -1; }

.add-song { justify-self: start; }

.difficulty { display: grid; gap: 0.75rem; padding: 1.25rem; border-radius: var(--radius-lg); background: var(--surface); border: 1px solid var(--border); }
.difficulty-label { font-weight: 700; font-size: 1.05rem; }
.scale { display: grid; grid-template-columns: repeat(10, 1fr); gap: 6px; }
.scale-btn {
  min-height: 46px; border-radius: 10px; border: 1px solid var(--border-strong); background: var(--bg-2); color: var(--text);
  font-weight: 700; font-variant-numeric: tabular-nums; transition: background-color var(--dur), color var(--dur), border-color var(--dur), transform 120ms;
}
.scale-btn:hover { border-color: var(--mint); }
.scale-btn:active { transform: scale(0.95); }
.scale-btn[aria-pressed="true"] { background: var(--mint); color: var(--mint-ink); border-color: var(--mint); }
.top-panel[data-top="B"] .scale-btn:hover { border-color: var(--pink); }
.top-panel[data-top="B"] .scale-btn[aria-pressed="true"] { background: var(--pink); color: var(--pink-ink); border-color: var(--pink); }
.scale-hint { display: flex; justify-content: space-between; color: var(--muted); font-size: 0.85rem; }
.difficulty.is-invalid { border-color: var(--danger); }

.round-footer {
  position: sticky; bottom: 0; z-index: var(--z-footer);
  width: min(100%, 880px); margin: 0 auto;
  display: flex; flex-wrap: wrap; gap: 0.75rem; justify-content: space-between;
  padding: 1rem clamp(1.25rem, 5vw, 2.5rem) calc(1rem + env(safe-area-inset-bottom));
  background: linear-gradient(transparent, var(--bg) 35%);
}
.round-footer .btn-primary { flex: 1 1 200px; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: calc(1.25rem + env(safe-area-inset-bottom)); transform: translateX(-50%);
  z-index: var(--z-toast); max-width: min(92vw, 520px); padding: 0.85rem 1.2rem; border-radius: 12px;
  background: var(--surface-2); border: 1px solid var(--border-strong); color: var(--text); box-shadow: var(--shadow-md);
  font-weight: 500; animation: rise 240ms var(--ease-out) both;
}
.toast[data-kind="ok"] { border-color: rgba(122, 240, 196, 0.5); }
.toast[data-kind="error"] { border-color: rgba(255, 123, 123, 0.5); }
.toast[hidden] { display: none; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .cover-grid { grid-template-columns: 1fr; align-content: start; gap: 1.75rem; }
  .roster-card { order: -1; width: min(70vw, 320px, calc(46dvh * 0.75)); }
  .roster-frame { transform: rotate(-1.2deg); }
  .cover-title { font-size: clamp(3.2rem, 15vw, 6rem); }
  .picker-name-text { font-size: clamp(3rem, 16vw, 5.5rem); }
  .tabs { top: 60px; }
}
@media (max-width: 640px) {
  .topbar-tag { display: none; }
  .song { grid-template-columns: 1fr; }
  .song-rank { grid-row: 1; }
  .song-tools { grid-row: 1; grid-column: 1; justify-self: end; grid-auto-flow: column; }
  .song-error { grid-column: 1; }
  .row-2 { grid-template-columns: 1fr; }
  .scale { grid-template-columns: repeat(5, 1fr); }
  .pin-box { width: 56px; height: 64px; }
  .tab-title { font-size: 0.85rem; }
  .round-footer .btn { flex: 1 1 100%; }
  .chip-name { display: none; }
}
@media (max-width: 380px) {
  .picker-row { grid-template-columns: 48px 1fr 48px; gap: 0.5rem; }
  .icon-btn { width: 48px; height: 48px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .roster-card:hover .roster-frame { transform: rotate(-1.6deg); }
}