/* simkit.css — Kit visual común de las simulaciones del Laboratorio MACEDONIA.
   Derivado del diseño del simulador de mecanismos SN/E. */
:root {
  --pw: 392px;
  --pr: calc(var(--pw) + 28px);
  --radius: 16px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --k-a: #5cc8ff;
  --k-b: #b58cff;
  --k-c: #ff7a90;
  --k-d: #ffb454;
}
:root[data-theme="dark"] {
  --bg0: #090c15;
  --bg1: #19213a;
  --panel: rgba(17, 22, 37, 0.8);
  --panel-solid: #131929;
  --card: rgba(255, 255, 255, 0.045);
  --ink: #e9eef9;
  --muted: #98a4c0;
  --line: rgba(255, 255, 255, 0.11);
  --accent: var(--acc-dark, #5cc8ff);
  --warn: #ffb020;
  --ok: #4ade80;
  --bad: #ff6b81;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.45);
  color-scheme: dark;
}
:root[data-theme="light"] {
  --bg0: #e6ecf6;
  --bg1: #f8faff;
  --panel: rgba(255, 255, 255, 0.84);
  --panel-solid: #ffffff;
  --card: rgba(20, 30, 60, 0.04);
  --ink: #141a2b;
  --muted: #56627f;
  --line: rgba(20, 30, 60, 0.13);
  --accent: var(--acc-light, #0a86cc);
  --warn: #b86e00;
  --ok: #138a45;
  --bad: #c9304b;
  --shadow: 0 10px 34px rgba(30, 50, 90, 0.18);
  color-scheme: light;
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg0);
  -webkit-font-smoothing: antialiased;
  font-variant-numeric: tabular-nums;
  overflow: hidden;
}
button, select, input { font: inherit; color: inherit; }
[hidden] { display: none !important; }
sub, sup { line-height: 0; }

#app { height: 100dvh; display: grid; grid-template-rows: auto 1fr; }

/* ---------- Barra superior ---------- */
.topbar {
  display: flex; align-items: center; gap: 14px; padding: 9px 14px;
  background: var(--panel); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line); z-index: 20;
}
.brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.brand-mark {
  width: 30px; height: 30px; border-radius: 9px; flex: none;
  background:
    radial-gradient(circle at 30% 30%, #fff 0 12%, transparent 13%),
    radial-gradient(circle at 70% 62%, #ffb454 0 16%, transparent 17%),
    linear-gradient(135deg, var(--k-a), var(--k-b) 55%, var(--k-c));
  box-shadow: 0 4px 14px rgba(92, 200, 255, 0.35);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; min-width: 0; }
.brand-text strong { font-size: 0.92rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.brand-text small { color: var(--muted); font-size: 0.74rem; }

.mode-tabs { display: flex; gap: 6px; margin: 0 auto; padding: 4px; background: var(--card); border: 1px solid var(--line); border-radius: 14px; }
.mode-tab {
  --mc: var(--accent);
  display: flex; flex-direction: column; align-items: center; gap: 0; min-width: 84px;
  padding: 5px 12px 6px; border: 1px solid transparent; border-radius: 10px; background: transparent; cursor: pointer;
  transition: background 0.2s, border-color 0.2s, transform 0.15s;
}
.mode-tab b { font-size: 1rem; letter-spacing: 0.02em; color: var(--ink); }
.mode-tab span { font-size: 0.66rem; color: var(--muted); }
.mode-tab:hover { background: color-mix(in srgb, var(--mc) 10%, transparent); }
.mode-tab[aria-selected="true"] {
  background: color-mix(in srgb, var(--mc) 18%, transparent);
  border-color: color-mix(in srgb, var(--mc) 70%, transparent);
  box-shadow: 0 0 22px color-mix(in srgb, var(--mc) 28%, transparent);
}
.mode-tab[aria-selected="true"] b { color: var(--mc); }
.mode-tab:focus-visible, .icon-btn:focus-visible, .btn:focus-visible, .chip-btn:focus-visible, .play-btn:focus-visible,
.ptab:focus-visible, .seg button:focus-visible, .step:focus-visible, .opt:focus-visible, .layer:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px;
}

.top-actions { display: flex; gap: 6px; }
.icon-btn {
  width: 36px; height: 36px; display: inline-grid; place-items: center; border-radius: 11px;
  background: var(--card); border: 1px solid var(--line); cursor: pointer; transition: background 0.15s, transform 0.12s;
}
.icon-btn:hover { background: color-mix(in srgb, var(--accent) 14%, var(--card)); }
.icon-btn:active { transform: scale(0.94); }
.icon-btn[aria-pressed="true"] { background: color-mix(in srgb, var(--accent) 22%, transparent); border-color: var(--accent); color: var(--accent); }
.ic { width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
.only-narrow { display: none; }

/* ---------- Escenario ---------- */
.stage { position: relative; overflow: hidden; min-height: 0; }
.viewport {
  position: absolute; inset: 0 var(--pr) 0 0;
  background:
    radial-gradient(900px 620px at 38% 38%, var(--bg1), transparent 70%),
    linear-gradient(180deg, var(--bg0), color-mix(in srgb, var(--bg0) 86%, #000));
  touch-action: none;
}
.viewport canvas { display: block; outline: none; }
.vignette { position: absolute; inset: 0 var(--pr) 0 0; pointer-events: none; box-shadow: inset 0 0 120px rgba(0, 0, 0, 0.35); }
:root[data-theme="light"] .vignette { box-shadow: inset 0 0 100px rgba(60, 80, 130, 0.12); }

.hud {
  background: var(--panel); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow);
}
.hud-col { position: absolute; top: 14px; left: 14px; display: flex; flex-direction: column; gap: 10px; max-width: 360px; z-index: 5; }
.hud-eq { padding: 12px 14px; }
.eq-head { display: flex; align-items: center; gap: 10px; margin-bottom: 4px; }
.eq-chip { font-weight: 800; letter-spacing: 0.03em; padding: 2px 10px; border-radius: 999px; font-size: 0.86rem; color: #0a0e18; background: var(--accent); }
.eq-name { font-size: 0.85rem; color: var(--muted); }
.eq-body { font-size: 0.98rem; line-height: 1.45; }
.eq-body small { display: block; color: var(--muted); font-size: 0.78rem; margin-top: 3px; }

.seg { display: inline-flex; flex-wrap: wrap; gap: 4px; padding: 3px; border-radius: 11px; background: var(--card); border: 1px solid var(--line); margin-top: 8px; }
.seg button { border: 0; background: transparent; padding: 5px 10px; font-size: 0.8rem; border-radius: 8px; cursor: pointer; color: var(--muted); transition: background 0.15s, color 0.15s; }
.seg button:hover { color: var(--ink); }
.seg button[aria-pressed="true"] { background: color-mix(in srgb, var(--accent) 24%, transparent); color: var(--ink); box-shadow: inset 0 0 0 1px var(--accent); }

.hud-phase {
  position: absolute; top: 14px; left: calc((100% - var(--pr)) / 2); transform: translateX(-50%);
  display: flex; align-items: center; gap: 10px; padding: 7px 16px; border-radius: 999px; z-index: 5; white-space: nowrap; max-width: calc(100% - var(--pr) - 420px);
  transition: box-shadow 0.3s, border-color 0.3s;
}
.ph-step { font-size: 0.72rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; }
.ph-name { font-weight: 650; font-size: 0.95rem; overflow: hidden; text-overflow: ellipsis; }
.ph-ts { color: var(--warn); font-weight: 800; }
.hud-phase.is-ts { border-color: var(--warn); box-shadow: 0 0 0 1px var(--warn), 0 0 28px color-mix(in srgb, var(--warn) 45%, transparent); animation: pulse 1.4s ease-in-out infinite; }
@keyframes pulse { 50% { box-shadow: 0 0 0 1px var(--warn), 0 0 40px color-mix(in srgb, var(--warn) 70%, transparent); } }

.hud-layers { padding: 8px 10px 10px; }
.layers-head { display: flex; align-items: center; gap: 8px; background: none; border: 0; padding: 2px 4px 6px; cursor: pointer; font-weight: 650; font-size: 0.82rem; color: var(--muted); width: 100%; text-align: left; }
.layers-body { display: flex; flex-wrap: wrap; gap: 6px; }
.layers-body[hidden], .views[hidden] { display: none !important; }
.layer {
  display: inline-flex; align-items: center; gap: 6px; padding: 5px 10px; border-radius: 999px; font-size: 0.78rem; cursor: pointer;
  background: var(--card); border: 1px solid var(--line); color: var(--muted); transition: all 0.15s;
}
.layer i { font-style: normal; font-weight: 700; width: 1.1em; text-align: center; }
.layer:hover { color: var(--ink); }
.layer[aria-pressed="true"] { color: var(--ink); background: color-mix(in srgb, var(--accent) 20%, transparent); border-color: var(--accent); }
.views { display: flex; align-items: center; gap: 8px; margin-top: 8px; flex-wrap: wrap; }
.views .lbl { font-size: 0.74rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; }
.views .seg { margin-top: 0; }

.hud-legend {
  position: absolute; left: 14px; bottom: 88px; z-index: 5; padding: 9px 12px; font-size: 0.78rem; display: flex; flex-direction: column; gap: 5px; max-width: 320px;
}
.hud-legend:empty { display: none; }
.lg-row { display: flex; align-items: center; gap: 8px; color: var(--muted); }
.lg-row b { color: var(--ink); font-weight: 600; }
.lg-dot { width: 10px; height: 10px; border-radius: 50%; flex: none; }
.lg-arrow { width: 22px; height: 0; border-top: 3px solid; border-radius: 2px; position: relative; flex: none; }
.lg-arrow::after { content: ""; position: absolute; right: -4px; top: -6px; border-left: 7px solid currentColor; border-top: 4.5px solid transparent; border-bottom: 4.5px solid transparent; }

/* ---------- Panel lateral ---------- */
.panel {
  position: absolute; top: 12px; right: 12px; bottom: 12px; width: var(--pw); display: flex; flex-direction: column;
  background: var(--panel); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--line); border-radius: 20px; box-shadow: var(--shadow); z-index: 10; overflow: hidden;
}
.panel-tabs { display: flex; gap: 4px; padding: 8px 8px 0; border-bottom: 1px solid var(--line); }
.ptab { flex: 1; padding: 9px 6px 10px; border: 0; background: transparent; cursor: pointer; color: var(--muted); font-size: 0.84rem; font-weight: 600; border-radius: 10px 10px 0 0; border-bottom: 2px solid transparent; }
.ptab:hover { color: var(--ink); }
.ptab.is-on { color: var(--ink); border-bottom-color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, transparent); }
.panel-body { flex: 1; overflow-y: auto; padding: 12px; scrollbar-width: thin; scrollbar-color: var(--line) transparent; }
.tabpane[hidden] { display: none; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 13px 14px; margin-bottom: 12px; }
.card-kicker { font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); font-weight: 700; margin-bottom: 8px; display: flex; align-items: center; gap: 8px; }
.tag { text-transform: none; letter-spacing: 0; font-weight: 600; font-size: 0.68rem; color: var(--warn); border: 1px solid color-mix(in srgb, var(--warn) 55%, transparent); padding: 1px 7px; border-radius: 999px; }
.card h2 { margin: 0 0 6px; font-size: 1.06rem; line-height: 1.25; }
.card p { margin: 0 0 8px; font-size: 0.91rem; line-height: 1.58; }
.card p:last-child { margin-bottom: 0; }
.muted { color: var(--muted); }
.small { font-size: 0.8rem !important; }
.phase-card { border-color: color-mix(in srgb, var(--accent) 55%, var(--line)); background: linear-gradient(160deg, color-mix(in srgb, var(--accent) 12%, transparent), var(--card)); }
.phase-card.flash { animation: flash 0.6s ease-out; }
@keyframes flash { from { box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 60%, transparent); } to { box-shadow: 0 0 0 0 transparent; } }

.stepper { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 6px; margin-bottom: 12px; }
.step { display: flex; align-items: center; gap: 8px; text-align: left; padding: 7px 9px; border-radius: 11px; border: 1px solid var(--line); background: var(--card); cursor: pointer; font-size: 0.8rem; color: var(--muted); }
.step i { font-style: normal; font-weight: 800; width: 22px; height: 22px; flex: none; display: grid; place-items: center; border-radius: 50%; background: var(--line); color: var(--ink); font-size: 0.74rem; }
.step.is-on { border-color: var(--accent); color: var(--ink); background: color-mix(in srgb, var(--accent) 14%, transparent); }
.step.is-on i { background: var(--accent); color: #0a0e18; }
.step.done i { background: color-mix(in srgb, var(--ok) 70%, transparent); color: #06130c; }

.meas { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.meas td { padding: 4px 0; border-bottom: 1px dashed var(--line); }
.meas tr:last-child td { border-bottom: 0; }
.meas td:last-child { text-align: right; font-weight: 700; }
.extras { display: flex; flex-direction: column; gap: 6px; margin-top: 8px; }
.pill-row { display: flex; justify-content: space-between; align-items: center; gap: 8px; font-size: 0.86rem; padding: 6px 10px; border-radius: 10px; background: color-mix(in srgb, var(--accent) 10%, transparent); border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent); }
.pill-row b { font-size: 0.95rem; }
.pill-row.cip-R b { color: var(--k-c); }
.pill-row.cip-S b { color: var(--k-a); }

.rate-law { font-size: 1.15rem; font-weight: 700; padding: 8px 12px; border-radius: 10px; background: var(--card); border: 1px solid var(--line); text-align: center; margin-bottom: 8px; letter-spacing: 0.01em; }
.sliders { display: grid; gap: 8px; margin: 10px 0; }
.sliders label { display: grid; grid-template-columns: 56px 1fr 40px; align-items: center; gap: 8px; font-size: 0.85rem; }
.sliders output { text-align: right; font-weight: 700; }
input[type="range"].plain, .sliders input[type="range"] { accent-color: var(--accent); width: 100%; }
.rate-meter { display: flex; align-items: center; gap: 10px; }
.rate-bar { flex: 1; height: 10px; background: var(--line); border-radius: 999px; overflow: hidden; }
.rate-bar i { display: block; height: 100%; width: 25%; background: linear-gradient(90deg, var(--accent), var(--k-b)); border-radius: inherit; transition: width 0.25s; }
.rate-val { font-size: 0.88rem; white-space: nowrap; }

.ideas { margin: 0; padding-left: 18px; font-size: 0.88rem; line-height: 1.55; }
.ideas li { margin-bottom: 4px; }

.energy { width: 100%; height: 250px; display: block; cursor: crosshair; touch-action: none; }
.table-wrap { overflow-x: auto; }
.cmp { border-collapse: collapse; font-size: 0.76rem; width: 100%; }
.cmp th, .cmp td { border-bottom: 1px solid var(--line); padding: 5px 4px; text-align: center; }
.cmp thead th { color: var(--ink); }
.cmp tbody th { text-align: left; color: var(--muted); font-weight: 600; white-space: nowrap; }

/* ---------- Predictor ---------- */
.form { display: grid; gap: 12px; }
.field > .lbl { display: block; font-size: 0.8rem; font-weight: 650; margin-bottom: 5px; }
.opts { display: grid; gap: 5px; }
.opts.two { grid-template-columns: 1fr 1fr; }
.opts.dense .opt { padding: 6px 4px; text-align: center; font-size: 0.78rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.opts.dense .opt small { font-size: 0.66rem; }
.opt { text-align: left; padding: 7px 10px; border-radius: 11px; border: 1px solid var(--line); background: var(--card); cursor: pointer; font-size: 0.82rem; line-height: 1.3; }
.opt small { display: block; color: var(--muted); font-size: 0.72rem; margin-top: 1px; }
.opt[aria-pressed="true"] { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 16%, transparent); }
.opt:hover { border-color: color-mix(in srgb, var(--accent) 60%, var(--line)); }

.bars { display: grid; gap: 8px; margin-bottom: 10px; }
.bar-row { display: grid; grid-template-columns: 42px 1fr 44px; align-items: center; gap: 8px; font-size: 0.86rem; }
.bar-row b { font-weight: 800; }
.bar-track { height: 14px; border-radius: 999px; background: var(--line); overflow: hidden; }
.bar-track i { display: block; height: 100%; width: 0; border-radius: inherit; transition: width 0.45s cubic-bezier(0.2, 0.9, 0.3, 1); background: var(--mc); }
.bar-row.top b { text-shadow: 0 0 14px var(--mc); }
.bar-row .pc { text-align: right; font-weight: 700; }
.reasons { margin: 6px 0 10px; padding-left: 18px; font-size: 0.82rem; line-height: 1.5; color: var(--muted); }
.reasons li { margin-bottom: 4px; }
.note { background: color-mix(in srgb, var(--warn) 12%, transparent); border: 1px solid color-mix(in srgb, var(--warn) 45%, transparent); border-radius: 10px; padding: 8px 10px; font-size: 0.82rem !important; }
.row { display: flex; gap: 8px; flex-wrap: wrap; margin: 10px 0; }

.btn, .chip-btn { border: 1px solid var(--line); background: var(--card); padding: 8px 14px; border-radius: 11px; cursor: pointer; font-weight: 600; font-size: 0.86rem; transition: background 0.15s, transform 0.1s; }
.btn:hover, .chip-btn:hover { background: color-mix(in srgb, var(--accent) 14%, var(--card)); }
.btn:active { transform: scale(0.98); }
.btn.primary { background: var(--accent); color: #07101c; border-color: transparent; }
.btn.primary:hover { filter: brightness(1.08); background: var(--accent); }
.chip-btn { padding: 6px 12px; border-radius: 999px; font-size: 0.8rem; }
.chip-btn[aria-pressed="true"] { background: color-mix(in srgb, var(--accent) 22%, transparent); border-color: var(--accent); }

.challenge .q { font-size: 0.92rem; line-height: 1.55; margin-bottom: 10px; }
.challenge .q b { color: var(--accent); }
.ans { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 10px; }
.ans button { padding: 10px; font-weight: 800; border-radius: 12px; border: 1px solid var(--line); background: var(--card); cursor: pointer; font-size: 0.95rem; }
.ans button:hover:not(:disabled) { border-color: var(--accent); }
.ans button.right { background: color-mix(in srgb, var(--ok) 25%, transparent); border-color: var(--ok); }
.ans button.wrong { background: color-mix(in srgb, var(--bad) 22%, transparent); border-color: var(--bad); }
.verdict { padding: 8px 10px; border-radius: 10px; font-size: 0.86rem; margin-bottom: 8px; }
.verdict.ok { background: color-mix(in srgb, var(--ok) 16%, transparent); border: 1px solid var(--ok); }
.verdict.no { background: color-mix(in srgb, var(--bad) 14%, transparent); border: 1px solid var(--bad); }
.score { font-size: 0.8rem; color: var(--muted); }

/* ---------- Barra de control ---------- */
.dock { position: absolute; left: 14px; right: calc(var(--pr) + 14px); bottom: 14px; z-index: 6; }
.dock-row {
  max-width: 920px; margin: 0 auto; display: flex; align-items: center; gap: 8px; padding: 8px 12px;
  background: var(--panel); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--line); border-radius: 20px; box-shadow: var(--shadow);
}
.play-btn { width: 46px; height: 46px; border-radius: 50%; border: 0; display: grid; place-items: center; cursor: pointer; background: var(--accent); color: #07101c; box-shadow: 0 6px 20px color-mix(in srgb, var(--accent) 45%, transparent); transition: transform 0.12s, filter 0.15s; flex: none; }
.play-btn:hover { filter: brightness(1.1); }
.play-btn:active { transform: scale(0.94); }
.play-btn .ic { width: 22px; height: 22px; }
.dock .icon-btn { width: 34px; height: 34px; flex: none; }
.dock.pulse-next #bNext { animation: nudge 1s ease-in-out infinite; border-color: var(--accent); color: var(--accent); }
@keyframes nudge { 50% { transform: translateX(3px); } }

.timeline { position: relative; flex: 1; height: 34px; min-width: 120px; margin: 0 6px; }
.segs { position: absolute; left: 9px; right: 9px; top: 14px; height: 6px; display: flex; border-radius: 999px; overflow: hidden; background: var(--line); }
.segs .seg-i { height: 100%; opacity: 0.75; border-right: 2px solid var(--panel-solid); }
.segs .seg-i:last-of-type { border-right: 0; }
.segs .fill { position: absolute; left: 0; top: 0; bottom: 0; width: 0; background: linear-gradient(90deg, color-mix(in srgb, var(--accent) 60%, transparent), var(--accent)); mix-blend-mode: normal; opacity: 0.9; }
.ticks { position: absolute; left: 9px; right: 9px; top: 0; height: 100%; pointer-events: none; }
.tick { position: absolute; top: 3px; width: 9px; height: 9px; background: var(--warn); transform: translateX(-50%) rotate(45deg); border-radius: 2px; box-shadow: 0 0 8px color-mix(in srgb, var(--warn) 70%, transparent); }
.tick.int { background: var(--k-b); border-radius: 50%; transform: translateX(-50%); }
.timeline input[type="range"] { position: absolute; inset: 0; width: 100%; height: 100%; margin: 0; background: transparent; -webkit-appearance: none; appearance: none; cursor: pointer; }
.timeline input[type="range"]::-webkit-slider-runnable-track { height: 34px; background: transparent; }
.timeline input[type="range"]::-moz-range-track { height: 34px; background: transparent; }
.timeline input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 18px; height: 18px; border-radius: 50%; background: #fff; border: 3px solid var(--accent); margin-top: 8px; box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 20%, transparent), 0 2px 8px rgba(0, 0, 0, 0.4); }
.timeline input[type="range"]::-moz-range-thumb { width: 12px; height: 12px; border-radius: 50%; background: #fff; border: 3px solid var(--accent); }
.timeline input[type="range"]:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 8px; }
.pct { font-size: 0.82rem; min-width: 40px; text-align: right; color: var(--muted); font-weight: 700; }
.dock-opts { display: flex; align-items: center; gap: 6px; flex: none; }
.mini-select select { background: var(--card); border: 1px solid var(--line); border-radius: 999px; padding: 5px 8px; font-size: 0.8rem; cursor: pointer; }
.mini-select select option { color: #111; }

/* ---------- Diálogo ---------- */
dialog { border: 1px solid var(--line); border-radius: 20px; background: var(--panel-solid); color: var(--ink); padding: 0; max-width: 520px; width: calc(100% - 28px); box-shadow: var(--shadow); }
dialog::backdrop { background: rgba(5, 8, 16, 0.6); backdrop-filter: blur(4px); }
.dlg { padding: 20px 22px; }
.dlg h2 { margin: 0 0 8px; font-size: 1.15rem; }
.dlg p, .dlg li { font-size: 0.9rem; line-height: 1.55; }
.dlg ul { padding-left: 18px; }
.dlg menu { margin: 14px 0 0; padding: 0; display: flex; justify-content: flex-end; }
.keys { font-size: 0.84rem; border-collapse: collapse; width: 100%; }
.keys td { padding: 4px 0; }
.keys td:first-child { white-space: nowrap; padding-right: 12px; }
kbd { font-family: inherit; font-size: 0.78rem; padding: 1px 6px; border-radius: 6px; border: 1px solid var(--line); background: var(--card); box-shadow: 0 1px 0 var(--line); }

/* ---------- Adaptación a pantallas estrechas ---------- */
@media (max-width: 1180px) {
  :root { --pw: 350px; }
  .hud-phase { max-width: calc(100% - var(--pr) - 380px); }
}
@media (max-width: 980px) {
  :root { --pr: 0px; }
  .brand-text small { display: none; }
  .only-narrow { display: inline-grid; }
  .mode-tab { min-width: 62px; padding: 4px 8px 5px; }
  .mode-tab span { display: none; }
  .panel { top: auto; left: 0; right: 0; bottom: 0; width: auto; height: 62dvh; border-radius: 22px 22px 0 0; transform: translateY(calc(100% + 8px)); transition: transform 0.3s cubic-bezier(0.2, 0.9, 0.3, 1); z-index: 30; }
  .panel.open { transform: none; }
  .hud-phase { left: 50%; top: auto; bottom: 100px; max-width: calc(100% - 28px); }
  .hud-col { max-width: calc(100% - 28px); }
  .hud-legend { bottom: 138px; }
  .dock { right: 14px; bottom: 12px; }
  .dock-row { flex-wrap: wrap; row-gap: 4px; padding: 8px; }
  .dock-opts { order: 5; margin-left: auto; }
  .timeline { order: 4; flex-basis: 100%; margin: 0; }
  .pct { display: none; }
  .brand { flex: 1; }
  .mode-tabs { margin: 0; }
}
@media (max-width: 560px) {
  .topbar { flex-wrap: wrap; gap: 8px; }
  .brand { flex-basis: 100%; }
  .mode-tabs { flex: 1; justify-content: space-between; }
  .top-actions { flex: none; }
  #btnFull { display: none; }
  .hud-eq { padding: 9px 11px; }
  .eq-body { font-size: 0.88rem; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

/* ---------- Extensiones del kit ---------- */
.brand-mark { background: linear-gradient(135deg, var(--k-a), var(--k-b) 55%, var(--k-c)); }
.hud-eq[hidden], .hud-legend[hidden] { display: none; }
.hud-eq .eq-chip { background: var(--eqc, var(--accent)); }
.fld { display: grid; gap: 6px; margin-bottom: 12px; }
.fld > .lbl { font-size: 0.8rem; font-weight: 650; }
.kv { display: flex; justify-content: space-between; gap: 8px; font-size: 0.86rem; padding: 4px 0; border-bottom: 1px dashed var(--line); }
.kv:last-child { border-bottom: 0; }
.kv b { font-weight: 700; text-align: right; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 8px 10px; }
.stat small { display: block; color: var(--muted); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.06em; }
.stat b { font-size: 1.05rem; }
.canvas-host { position: relative; width: 100%; }
.canvas-host canvas { width: 100%; display: block; touch-action: none; border-radius: 10px; }
.legend-inline { display: flex; flex-wrap: wrap; gap: 4px 12px; font-size: 0.76rem; color: var(--muted); margin-top: 6px; }
.legend-inline i { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 5px; vertical-align: -1px; }
.formula { font-size: 1.02rem; font-weight: 650; }
.eqline { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 7px 10px; margin: 6px 0; font-size: 0.92rem; }
.eqline small { display: block; color: var(--muted); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.06em; }
.embed .topbar { display: none; }
.embed #app { grid-template-rows: 1fr; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.toast { position: fixed; left: 50%; bottom: 96px; transform: translateX(-50%); background: var(--panel-solid); border: 1px solid var(--line); border-radius: 999px; padding: 8px 16px; font-size: 0.84rem; box-shadow: var(--shadow); z-index: 60; }
.sl { display: grid; grid-template-columns: minmax(64px, 110px) 1fr 62px; align-items: center; gap: 8px; font-size: 0.85rem; }
.sl output { text-align: right; font-weight: 700; }
.sl input[type="range"] { accent-color: var(--accent); width: 100%; }
.opt.right { background: color-mix(in srgb, var(--ok) 25%, transparent); border-color: var(--ok); }
.opt.wrong { background: color-mix(in srgb, var(--bad) 22%, transparent); border-color: var(--bad); }
.opt:disabled { cursor: default; }
.challenge .opts { margin-bottom: 10px; }
.stat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
a.icon-btn { color: inherit; text-decoration: none; }

.panel-tabs { overflow-x: auto; scrollbar-width: none; }
.panel-tabs::-webkit-scrollbar { display: none; }
.ptab { white-space: nowrap; padding-left: 10px; padding-right: 10px; flex: 1 0 auto; }
.btn.block { width: 100%; }
.row .btn { flex: 1; }
.decision { border-left: 3px solid var(--accent); padding: 6px 10px; margin: 8px 0; background: color-mix(in srgb, var(--accent) 8%, transparent); border-radius: 0 10px 10px 0; font-size: 0.88rem; line-height: 1.5; }
.cand { width: 100%; border-collapse: collapse; font-size: 0.82rem; margin: 6px 0; }
.cand td { padding: 4px 6px; border-bottom: 1px dashed var(--line); }
.cand tr.win td { font-weight: 700; color: var(--ok); }
.cand td:last-child { text-align: right; white-space: nowrap; }

@media (min-width: 981px) {
  .hud-phase { left: calc((100% - var(--pr)) / 2 + 150px); }
}

/* Leyenda a la derecha del visor para no chocar con las capas */
@media (min-width: 981px) {
  .hud-legend { left: auto; right: calc(var(--pr) + 14px); bottom: 92px; }
}
@media (max-width: 980px) {
  .hud-eq .eq-body, .hud-eq small { display: none; }
  .hud-eq.open .eq-body, .hud-eq.open small { display: block; }
  .hud-eq .eq-head { cursor: pointer; margin-bottom: 0; }
  .hud-eq.open .eq-head { margin-bottom: 6px; }
  .hud-eq .eq-head::after { content: "▾"; margin-left: auto; color: var(--muted); }
  .hud-legend { display: none; }
  .hud-col { top: 10px; left: 10px; max-width: calc(100% - 20px); gap: 8px; }
}
@media (max-width: 560px) { .hud-phase { bottom: 152px; } }