/* Curso de leitura dinâmica: tema adulto (cores do nakanosoft) e infantil. */
.sr-app {
  --bg: #0a192f;
  --card: #112a4a;
  --card-2: #16365e;
  --ink: #e8f1fb;
  --muted: #9fb4cc;
  --accent: #7fdbff;
  --accent-ink: #001f3f;
  --paper: #fbfaf6;
  --paper-ink: #1d1d1f;
  --anchor: #e0263b;
  --ok: #2ecc71;
  --warn: #f5b041;
  --radius: 14px;
  --font: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --read-font: Georgia, 'Iowan Old Style', 'Times New Roman', serif;
  --read-size: 1.2rem;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  line-height: 1.5;
}

.sr-app.sr-kids {
  --bg: linear-gradient(160deg, #3b1d6e 0%, #6a2c91 55%, #b8457e 100%);
  --card: rgba(255, 255, 255, 0.14);
  --card-2: rgba(255, 255, 255, 0.22);
  --ink: #fff;
  --muted: #f1dcff;
  --accent: #ffd447;
  --accent-ink: #3b1d6e;
  --anchor: #ff2d55;
  --font: 'Nunito', system-ui, sans-serif;
  --read-font: 'Nunito', system-ui, sans-serif;
  --read-size: 1.35rem;
  background-attachment: fixed;
}

.sr-app * { box-sizing: border-box; }
.sr-app a { color: var(--accent); }
/* links com cara de botão: a regra acima pintaria o texto da cor do fundo */
.sr-app a.sr-btn { color: var(--accent-ink); }
.sr-app a.sr-btn-ghost { color: var(--accent); }

.sr-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  max-width: 920px;
  margin: 0 auto;
  flex-wrap: wrap;
}
.sr-brand { font-weight: 800; font-size: 1.1rem; color: var(--ink) !important; text-decoration: none; }
.sr-header-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

.sr-main { max-width: 920px; margin: 0 auto; padding: 8px 16px 48px; }
.sr-main h1 { font-size: clamp(1.6rem, 4vw, 2.4rem); line-height: 1.15; margin: 8px 0 12px; }
.sr-main h2 { font-size: 1.25rem; margin: 28px 0 12px; }
.sr-card h2 { margin-top: 0; }
.sr-lead { font-size: 1.1rem; color: var(--muted); max-width: 62ch; }
.sr-muted { color: var(--muted); font-size: 0.92rem; }

.sr-hero { padding: 16px 0 8px; text-align: left; }
.sr-kids .sr-hero { text-align: center; }
.sr-kids .sr-lead { margin: 0 auto; }
.sr-mascot { font-size: 4rem; line-height: 1; }

.sr-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 18px;
  margin: 16px 0;
}

.sr-notice {
  background: var(--accent);
  color: var(--accent-ink);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-weight: 700;
}

.sr-btn {
  appearance: none;
  border: 0;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-ink);
  font: inherit;
  font-weight: 700;
  padding: 9px 18px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.sr-btn:disabled { opacity: 0.45; cursor: not-allowed; }
.sr-btn-ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1.5px var(--card-2); }
.sr-btn-ghost:hover { background: var(--card); }
.sr-btn-big { padding: 13px 26px; font-size: 1.05rem; }
.sr-back { margin: 4px 0 8px; }

.sr-select, .sr-textarea {
  font: inherit;
  color: var(--paper-ink);
  background: var(--paper);
  border: 0;
  border-radius: 10px;
  padding: 8px 10px;
}
.sr-textarea { width: 100%; margin: 8px 0; font-family: var(--read-font); font-size: 1rem; }

.sr-stats .sr-stat-row, .sr-result .sr-stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 12px;
}
.sr-stat { background: var(--card-2); border-radius: 12px; padding: 12px; }
.sr-stat-value { font-size: 1.8rem; font-weight: 800; color: var(--accent); }
.sr-stat-label { font-size: 0.85rem; color: var(--muted); }
.sr-history { margin-top: 14px; color: var(--accent); }
.sr-spark { width: 100%; max-width: 420px; height: 60px; display: block; margin-top: 6px; }

.sr-stage-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.sr-stage {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 14px;
  text-align: left;
  background: var(--card);
  color: var(--ink);
  border: 0;
  border-radius: var(--radius);
  padding: 14px 16px;
  font: inherit;
  cursor: pointer;
  transition: transform 0.12s ease, background 0.12s ease;
}
.sr-stage:hover:not(:disabled) { background: var(--card-2); transform: translateY(-1px); }
.sr-stage-locked { opacity: 0.55; cursor: not-allowed; }
.sr-stage-num {
  flex: 0 0 38px;
  height: 38px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 800;
}
.sr-stage-body { flex: 1; display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.sr-stage-title { font-weight: 700; }
.sr-stage-summary { color: var(--muted); font-size: 0.92rem; }
.sr-stage-best { color: var(--accent); font-size: 0.82rem; }
.sr-badge { font-size: 0.85rem; white-space: nowrap; }
.sr-badge-ok { color: var(--ok); font-weight: 700; }
.sr-kids .sr-badge-ok { font-size: 1.5rem; }
.sr-badge-pay { color: var(--warn); font-size: 1.1rem; }

.sr-howto p { margin: 0 0 10px; }

.sr-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin: 14px 0; }
.sr-control { display: inline-flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.sr-control input[type=range] { width: 170px; accent-color: var(--accent); }
.sr-wpm-value { min-width: 9ch; font-variant-numeric: tabular-nums; color: var(--muted); }

/* área de leitura: papel claro, independente do tema, para ler confortável */
.sr-reading {
  background: var(--paper);
  color: var(--paper-ink);
  border-radius: var(--radius);
  padding: 4px 0;
}
.sr-text {
  position: relative;
  font-family: var(--read-font);
  font-size: var(--read-size);
  line-height: 1.85;
  padding: 18px 22px;
  max-height: 62vh;
  overflow-y: auto;
  max-width: 68ch;
  margin: 0 auto;
}
.sr-text p { margin: 0 0 1em; }
.sr-text-narrow { max-width: 46ch; padding: 18px 44px; }
.sr-blurred .sr-text { filter: blur(7px); user-select: none; }
.sr-w { border-radius: 4px; transition: background 0.08s; }
.sr-w-on { background: #ffe066; box-shadow: 0 0 0 2px #ffe066; }
.sr-w-line { background: rgba(127, 219, 255, 0.18); }
.sr-line-bar {
  position: absolute;
  height: 3px;
  border-radius: 2px;
  background: var(--anchor);
  width: 0;
  pointer-events: none;
}
.sr-edge {
  position: absolute;
  transform: translateY(-50%);
  color: var(--anchor);
  font-size: 1rem;
  transition: top 0.15s ease;
  top: 0;
}
.sr-edge-left { left: 12px; }
.sr-edge-right { right: 12px; }

/* RSVP: uma palavra por vez; a coluna do meio (letra-âncora) fica sempre
   no centro exato, então o olho não precisa se mexer */
.sr-rsvp-wrap { background: var(--paper); color: var(--paper-ink); border-radius: var(--radius); }
.sr-rsvp { position: relative; padding: 46px 12px 24px; }
.sr-rsvp-line {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: baseline;
  font-family: var(--read-font);
  font-size: clamp(2rem, 7vw, 3.2rem);
  min-height: 1.6em;
  white-space: pre;
}
.sr-rsvp-pre { text-align: right; overflow: hidden; }
.sr-rsvp-post { text-align: left; overflow: hidden; }
.sr-rsvp-orp { color: var(--anchor); font-weight: 700; }
.sr-rsvp-guide { position: relative; height: 14px; border-color: #c9c9c9; border-style: solid; border-width: 0; }
.sr-rsvp-guide::after {
  content: '';
  position: absolute;
  left: 50%;
  width: 2px;
  height: 12px;
  background: var(--anchor);
  transform: translateX(-50%);
}
.sr-rsvp-guide-top { border-bottom-width: 1px; }
.sr-rsvp-guide-top::after { bottom: 0; }
.sr-rsvp-guide-bottom { border-top-width: 1px; }
.sr-rsvp-guide-bottom::after { top: 0; }
.sr-rsvp-progress { height: 4px; background: #e6e6e6; border-radius: 2px; margin-top: 22px; overflow: hidden; }
.sr-rsvp-progress-bar { height: 100%; width: 0; background: var(--anchor); }

/* a pirâmide não pode quebrar linha: cada linha é uma única fixação */
.sr-pyramid { padding: 18px 8px; font-family: var(--read-font); font-size: clamp(0.85rem, 4vw, var(--read-size)); }
.sr-pyramid-row { display: grid; grid-template-columns: 1fr auto 1fr; gap: 8px; margin: 8px 0; white-space: nowrap; }
.sr-pyramid-row .sr-pyramid-side:first-child { text-align: right; }
.sr-pyramid-dot { color: var(--anchor); font-weight: 900; }

.sr-flash-timer { height: 5px; background: var(--card-2); border-radius: 3px; overflow: hidden; margin-bottom: 10px; }
.sr-flash-timer-fill { height: 100%; width: 100%; background: var(--anchor); }
.sr-flash-gone { visibility: hidden; }
.sr-page h3 { font-family: var(--font); margin: 0.6em 0 0.3em; }
.sr-page { max-height: none; }

.sr-question { margin: 18px 0; }
.sr-question-text { font-weight: 700; margin: 0 0 8px; }
.sr-options { display: grid; gap: 8px; }
.sr-option {
  text-align: left;
  font: inherit;
  color: var(--ink);
  background: var(--card-2);
  border: 0;
  border-radius: 10px;
  padding: 10px 14px;
  cursor: pointer;
}
.sr-option:disabled { cursor: default; opacity: 0.6; }
.sr-option-picked { opacity: 1 !important; box-shadow: inset 0 0 0 2px var(--accent); }

.sr-result-ok { box-shadow: inset 0 0 0 2px var(--ok); }
.sr-result-retry { box-shadow: inset 0 0 0 2px var(--warn); }
.sr-medal { font-size: 4rem; text-align: center; animation: sr-pop 0.5s ease; }
@keyframes sr-pop { from { transform: scale(0.3); } to { transform: scale(1); } }

.sr-paywall { text-align: center; }
.sr-science summary { cursor: pointer; font-weight: 700; }
.sr-science p { color: var(--muted); }
.sr-footer { margin-top: 40px; color: var(--muted); font-size: 0.85rem; text-align: center; }

@media (max-width: 560px) {
  .sr-text { padding: 14px 14px; font-size: calc(var(--read-size) * 0.95); }
  .sr-text-narrow { padding: 14px 30px; }
  .sr-control input[type=range] { width: 130px; }
  .sr-stage { padding: 12px; gap: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  .sr-stage, .sr-edge, .sr-medal { transition: none; animation: none; }
}

/* velocímetro embaixo do RSVP: mostra a velocidade de cada palavra */
.sr-speed { display: flex; align-items: center; gap: 12px; margin-top: 14px; }
.sr-speed-track {
  flex: 1;
  height: 10px;
  border-radius: 5px;
  overflow: hidden;
  display: flex;
  justify-content: flex-end;
  background: linear-gradient(90deg, #2ecc71, #f5b041 60%, #e0263b);
}
.sr-speed-fill { height: 100%; width: 100%; background: #e6e6e6; transition: width 0.15s linear; }
.sr-speed-value { min-width: 8ch; font-weight: 800; font-variant-numeric: tabular-nums; color: var(--paper-ink); text-align: right; }

/* Leitor Veloz */
.sr-reader-stage .sr-rsvp { padding-top: 56px; }
.sr-reader-info { margin: 0 0 8px; }
.sr-reader-limit { margin-top: 14px; font-weight: 600; }
.sr-reader-limit p { margin: 0 0 10px; }
.sr-reader-done { text-align: center; }
.sr-tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 10px; }
.sr-tab {
  font: inherit;
  font-weight: 700;
  color: var(--ink);
  background: transparent;
  border: 0;
  border-radius: 999px;
  padding: 8px 16px;
  cursor: pointer;
  box-shadow: inset 0 0 0 1.5px var(--card-2);
}
.sr-tab-on { background: var(--accent); color: var(--accent-ink); box-shadow: none; }
.sr-tab-panel[hidden] { display: none; }
.sr-input, .sr-num {
  font: inherit;
  color: var(--paper-ink);
  background: var(--paper);
  border: 0;
  border-radius: 10px;
  padding: 9px 12px;
}
.sr-input { flex: 1; min-width: 220px; }
.sr-num { width: 5.5em; padding: 7px 8px; }
.sr-file input { font: inherit; color: var(--ink); max-width: 100%; }
.sr-try { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; box-shadow: inset 0 0 0 2px var(--accent); }
.sr-try h2 { margin: 0 0 4px; }
.sr-try p { margin: 0; }