.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 18px clamp(16px, 4vw, 40px);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.12rem; letter-spacing: -0.005em; }
.lang {
  display: inline-flex;
  padding: 3px;
  border: 1.5px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
}
.lang button {
  border: 0;
  background: none;
  min-width: 44px;
  padding: 5px 12px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--ink-2);
  cursor: pointer;
}
.lang button[aria-pressed="true"] { background: var(--ink); color: #fff; }

main { padding: 8px clamp(16px, 4vw, 40px) 64px; }
.screen { max-width: 1080px; margin: 0 auto; }
.screen.narrow { max-width: 600px; padding-top: clamp(16px, 6vh, 64px); }
.screen.wide { max-width: 1400px; }

h1 { font-size: clamp(1.85rem, 1.35rem + 2vw, 2.6rem); font-weight: 700; letter-spacing: -0.015em; }
h2 { font-size: 1.15rem; font-weight: 700; }
.lede { margin-top: 14px; font-size: 1.12rem; color: var(--ink-2); max-width: 34em; }
.muted { color: var(--ink-3); }
.hint { margin-top: 14px; color: var(--ink-2); font-size: 0.97rem; max-width: 40em; }

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: clamp(20px, 3vw, 32px);
}
.screen.narrow .panel { margin-top: 28px; }

/* ---- Términos ---- */
.terms-layout { display: grid; gap: 36px; padding-top: clamp(8px, 3vh, 32px); }
@media (min-width: 960px) {
  .terms-layout { grid-template-columns: minmax(0, 1fr) minmax(0, 470px); gap: 56px; align-items: start; }
  .intro { position: sticky; top: 24px; }
}
.demo { margin: 28px 0 0; max-width: 460px; }
.demo svg { display: block; width: 100%; height: auto; }

.facts { list-style: none; margin: 24px 0 0; padding: 0; display: grid; gap: 12px; max-width: 32em; }
.facts li { display: grid; grid-template-columns: 26px 1fr; gap: 12px; align-items: start; color: var(--ink-2); }
.facts svg { width: 24px; height: 24px; margin-top: 1px; fill: none; stroke: var(--ink); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }

.terms-box {
  margin-top: 14px;
  max-height: 280px;
  overflow: auto;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: #F7F9FA;
  font-size: 0.93rem;
  line-height: 1.6;
  color: var(--ink-2);
}
.terms-box h3 { font-size: 0.97rem; color: var(--ink); margin: 1.2em 0 0.3em; }
.terms-box h3:first-child { margin-top: 0; }
.terms-box p + p { margin-top: 0.6em; }
.terms-box ul { padding-left: 1.2em; margin: 0.4em 0; }

.field { display: grid; gap: 6px; margin-top: 22px; }
.field > span { font-weight: 600; font-size: 0.97rem; }
input[type="text"] {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid #B4C1CD;
  border-radius: var(--r-md);
  background: #fff;
}
input[type="text"]:focus-visible { outline-offset: 0; border-color: var(--focus); }
.big-input { font-size: 1.6rem; padding: 14px 16px; text-align: center; }
.code-digits { font-variant-numeric: tabular-nums; letter-spacing: 0.05em; }

.check { display: grid; grid-template-columns: 22px 1fr; gap: 12px; margin-top: 18px; cursor: pointer; align-items: start; }
.check input { width: 20px; height: 20px; margin: 3px 0 0; accent-color: var(--go); }

.btn.block { width: 100%; margin-top: 22px; min-height: 52px; font-size: 1.05rem; }
.form-error { margin-top: 14px; color: var(--danger); font-weight: 600; }
.meta { margin-top: 16px; text-align: center; color: var(--ink-3); font-size: 0.9rem; }
.meta strong { color: var(--ink-2); }

/* Animación de ejemplo: resaltado → indicación → pulso */
.d-win { fill: #fff; stroke: #C9D3DC; stroke-width: 1.5; }
.d-titlebar { fill: #E6EBF0; }
.d-dot { fill: #C2CCD6; }
.d-side { fill: #F3F6F8; }
.d-bar { fill: #D7DFE6; }
.d-head { fill: #BFCBD6; }
.d-line { fill: #E2E8ED; }
.d-input { fill: #fff; stroke: #CCD5DE; stroke-width: 1.5; }
.d-btn { fill: var(--go); }
.d-btn-label { fill: rgba(255, 255, 255, 0.85); }
.d-hl {
  fill: rgba(255, 61, 87, 0.1);
  stroke: var(--signal);
  stroke-width: 3.5;
  stroke-dasharray: 100;
  stroke-dashoffset: 100;
  animation: hl-draw 900ms cubic-bezier(.6, .1, .3, 1) 500ms forwards;
}
.d-target { opacity: 0; animation: fade-in 300ms ease 1400ms forwards; }
.d-core { fill: var(--signal); stroke: #fff; stroke-width: 2; }
.d-ring {
  fill: none;
  stroke: var(--signal);
  stroke-width: 2;
  transform-box: fill-box;
  transform-origin: center;
  animation: ring 1.6s ease-out 1500ms infinite;
  opacity: 0;
}
.d-ring.r2 { animation-delay: 2300ms; }
.d-caption { opacity: 0; animation: caption-in 400ms ease 1700ms forwards; }
.d-caption rect { fill: var(--ink); }
.d-caption text { fill: #fff; font-family: var(--font); font-size: 12.5px; font-weight: 600; }

@keyframes hl-draw { to { stroke-dashoffset: 0; } }
@keyframes fade-in { to { opacity: 1; } }
@keyframes caption-in { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
@keyframes ring {
  0% { transform: scale(0.8); opacity: 0.9; }
  100% { transform: scale(2.4); opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .d-hl { stroke-dashoffset: 0; }
  .d-target, .d-caption { opacity: 1; }
  .d-ring { opacity: 0; }
}

/* ---- Listo ---- */
.status { display: flex; align-items: center; gap: 10px; margin-top: 16px; font-size: 1.05rem; color: var(--ink-2); }
.status .dot { animation: wait 1.4s ease-in-out infinite alternate; }
.status.on .dot { background: #19A974; animation: none; }
@keyframes wait { from { opacity: 0.35; } to { opacity: 1; } }
#share-block { margin-top: 32px; }
.btn.big { min-height: 60px; padding: 14px 26px; font-size: 1.12rem; border-radius: 12px; }
.notice { margin-top: 32px; padding: 20px 22px; border-radius: var(--r-md); background: #FFF6E5; border: 1px solid #F0D9A8; }
.notice p { margin-top: 8px; color: var(--ink-2); }
.notice.tight { margin: 0 0 22px; padding: 14px 16px; }
.notice.tight h2 { font-size: 1rem; }
.notice.tight p { font-size: 0.93rem; }

/* ---- Android: abrir o instalar la app ---- */
.wide-btn { width: 100%; margin-top: 28px; text-decoration: none; }
.install { margin-top: 32px; }
.install .wide-btn { margin-top: 20px; min-height: 52px; }
.install.attention { border-color: var(--go); box-shadow: 0 0 0 3px rgba(14, 107, 86, 0.18); }
.steps { margin: 14px 0 0; padding-left: 1.4em; display: grid; gap: 8px; color: var(--ink-2); }
.steps li::marker { font-weight: 700; color: var(--ink); }
.cb-alt { margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--line); }
.cb-alt .wide-btn { margin-top: 14px; }

/* ---- Compartiendo ---- */
.share-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.live-status { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 1.05rem; }
.share-actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.stage {
  position: relative;
  height: clamp(320px, calc(100vh - 230px), 900px);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--stage);
}
.stage canvas, .stage video { display: block; width: 100%; height: 100%; object-fit: contain; }

@media (max-width: 640px) {
  body { font-size: 16px; }
  .share-actions { width: 100%; }
  .share-actions .btn { flex: 1 1 auto; }
}

/* Cortina sobre la vista previa al compartir toda la pantalla */
.mirror-curtain { position: absolute; inset: 0; display: grid; place-items: center; padding: 24px; background: var(--stage); color: #E8EDF2; text-align: center; }
.mc-box { max-width: 34em; display: grid; justify-items: center; gap: 14px; }
.mc-box svg { width: 56px; height: 56px; fill: none; stroke: #4FD1A5; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.mc-box h2 { font-size: 1.35rem; color: #fff; }
.mc-box p { color: #C7D2DD; }
.mc-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 6px; }
.mirror-curtain .btn.danger { background: transparent; color: #FF9AA8; border-color: #6B3440; }
.link-btn { border: 0; background: none; padding: 4px; color: #8AB4FF; font: inherit; font-size: 0.9rem; text-decoration: underline; cursor: pointer; }

/* ---- Navegador compartido ---- */
.cb-entry { margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--line); }
.cb-head {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 14px;
}
.cb-head h1 { font-size: clamp(1.4rem, 1.1rem + 1vw, 1.8rem); }
.cb-sub { margin-top: 4px; color: var(--ink-2); }
.cb-request {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  padding: 14px 18px;
  border-radius: var(--r-md);
  background: #FFF6E5;
  border: 1px solid #F0D9A8;
  font-weight: 600;
}
.cb-request-actions { display: flex; gap: 10px; }
.cb-banner {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  padding: 10px 16px;
  border-radius: var(--r-md);
  background: #FDECEE;
  border: 1px solid #F3B9C1;
  color: #8A1C2B;
  font-weight: 600;
}
.cb-frame { border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; background: var(--surface); }
.cb-toolbar { display: flex; align-items: center; gap: 6px; padding: 8px; border-bottom: 1px solid var(--line); }
.cb-icon {
  flex: none;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 8px;
  background: none;
  color: var(--ink);
  cursor: pointer;
}
.cb-icon:hover:not(:disabled) { background: var(--paper); }
.cb-icon:disabled { opacity: 0.35; cursor: default; }
.cb-icon svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.cb-toolbar input[type="text"] { flex: 1; min-width: 0; padding: 8px 12px; border-radius: 999px; font-size: 0.97rem; }
.cb-toolbar .btn { min-height: 40px; }
.stage.cb-stage { border-radius: 0; height: clamp(320px, calc(100vh - 300px), 900px); }
#cb-canvas { cursor: default; touch-action: none; }
#cb-canvas:focus-visible { outline: 2px solid var(--focus); outline-offset: -2px; }
.cb-empty { position: absolute; inset: 0; display: grid; place-items: center; color: #C7D2DD; pointer-events: none; }

@media (max-width: 640px) {
  .cb-toolbar [data-cb-nav="forward"] { display: none; }
  .cb-request-actions { width: 100%; }
  .cb-request-actions .btn { flex: 1; }
}