:root {
  --accent: #42c8ff;
  --accent-hover: #74d7ff;
  --accent-soft: #143246;
  --trainer-button-text: #10202a;
}

* {
  box-sizing: border-box;
}

body.speedread-theme {
  --bg: #111318;
  --panel: #171a20;
  --panel-raised: #1d222b;
  --text: #f4f5f6;
  --muted: #9aa2b0;
  --line: rgba(255, 255, 255, .12);
  --trainer-bg-glow-color: rgba(20, 70, 100, .62);
  --trainer-bg-glow-x: 15%;
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at var(--trainer-bg-glow-x) -12%, var(--trainer-bg-glow-color) 0, transparent 30rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body.speedread-theme .training-play-app {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

body.speedread-theme .site-header {
  max-width: 1120px;
  width: 100%;
  height: 80px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

body.speedread-theme .brand img {
  display: block;
  width: 170px;
  height: auto;
  transform: translateY(2px);
}

body.speedread-theme .trainer-nav {
  display: flex;
  gap: 24px;
}

body.speedread-theme .trainer-nav a {
  color: var(--muted);
  text-decoration: none;
}

body.speedread-theme .trainer-nav a:hover,
body.speedread-theme .trainer-nav a[aria-current="page"] {
  color: #fff;
}

body.speedread-theme .game-header {
  min-height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  font-size: 18px;
  font-weight: 650;
}

body.speedread-theme .game-header a,
body.speedread-theme .game-header span {
  color: #fff;
  text-decoration: none;
}

body.speedread-theme .game-header span {
  color: var(--accent);
}

body.speedread-theme .training-game-main {
  flex: 1;
  display: grid;
  place-items: center;
  padding: 28px 18px;
}

body.speedread-theme.training-intro-page {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

body.speedread-theme.training-intro-page main {
  flex: 1;
  display: grid;
  place-items: center;
  width: 100%;
  padding: 28px 18px;
}

body.speedread-theme .trainer-shell {
  width: min(100%, 456px);
}

body.speedread-theme .hero {
  width: min(100%, 456px);
}

body.speedread-theme .hero {
  text-align: left;
}

body.speedread-theme .mode-switch {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  width: 100%;
  margin: 0 0 18px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
}

body.speedread-theme .mode-switch a,
body.speedread-theme .mode-switch span {
  min-height: 46px;
  display: grid;
  place-items: center;
  border-radius: 9px;
  color: var(--muted);
  text-decoration: none;
  font-weight: 700;
}

body.speedread-theme .mode-switch [aria-current="page"] {
  background: color-mix(in srgb, var(--accent) 18%, #171a20);
  color: #fff;
}

body.speedread-theme .mode-switch .mode-placeholder {
  pointer-events: none;
  opacity: .45;
}

body.speedread-theme .eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .13em;
}

body.speedread-theme h1 {
  margin: 0 0 18px;
  color: #fff;
  font-size: clamp(42px, 12vw, 64px);
  line-height: 1.02;
  font-weight: 600;
}

body.speedread-theme h1 span {
  color: var(--accent);
}

body.speedread-theme .intro {
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.6;
}

body.speedread-theme .text-link {
  display: block;
  margin-top: 18px;
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 3px;
}

body.speedread-theme .theory-page {
  align-self: start;
  width: min(100%, 760px);
  margin: 24px 0 48px;
}

body.speedread-theme .theory-page h1 {
  font-size: var(--trainer-theory-h1-size, 52px) !important;
  font-weight: var(--trainer-theory-h1-weight, 500) !important;
}

body.speedread-theme .theory-page h2 {
  margin: 34px 0 10px;
  color: #fff;
  font-size: var(--trainer-theory-h2-size, 34px);
  font-weight: var(--trainer-theory-h2-weight, 500);
}

body.speedread-theme .theory-page p,
body.speedread-theme .theory-page li {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}

body.speedread-theme .theory-page strong {
  color: #fff;
}

body.speedread-theme .theory-page a:not(.button) {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 3px;
}

body.speedread-theme .theory-note {
  margin: 30px 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

body.speedread-theme .training-type-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 14px;
}

body.speedread-theme .training-type {
  min-height: 94px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--muted);
  text-align: left;
  cursor: pointer;
}

body.speedread-theme .training-type strong,
body.speedread-theme .training-type span {
  display: block;
}

body.speedread-theme .training-type strong {
  margin-bottom: 6px;
  color: #fff;
  font-size: 15px;
}

body.speedread-theme .training-type span {
  font-size: 13px;
  line-height: 1.35;
}

body.speedread-theme .training-type:hover,
body.speedread-theme .training-type:focus-visible,
body.speedread-theme .training-type.is-active {
  border-color: color-mix(in srgb, var(--accent) 70%, transparent);
}

body.speedread-theme .training-type.is-active {
  background: color-mix(in srgb, var(--accent) 13%, var(--panel));
}

body.speedread-theme .reader-settings {
  display: grid;
  gap: 12px;
  margin-bottom: 14px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

body.speedread-theme .reader-settings label {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  color: #fff;
  font-size: 14px;
  font-weight: 700;
}

body.speedread-theme .reader-settings output {
  color: var(--accent);
  white-space: nowrap;
}

body.speedread-theme input,
body.speedread-theme select {
  width: 100%;
  accent-color: var(--accent);
}

body.speedread-theme select {
  min-height: 46px;
  padding: 0 12px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 8px;
  background: #12151b;
  color: #fff;
  font: inherit;
}

body.speedread-theme .button,
body.speedread-theme .primary-button,
body.speedread-theme .secondary-button {
  min-height: 48px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  font: 800 1rem Inter, ui-sans-serif, system-ui, sans-serif;
  text-decoration: none;
  cursor: pointer;
}

body.speedread-theme .button,
body.speedread-theme .primary-button {
  width: 100%;
  border: 0;
  background: var(--accent);
  color: var(--trainer-button-text);
}

body.speedread-theme .button:hover,
body.speedread-theme .primary-button:hover {
  background: var(--accent-hover);
}

body.speedread-theme .secondary-button {
  border: 1px solid var(--line);
  background: transparent;
  color: #fff;
}

body.speedread-theme .secondary-button:hover {
  border-color: var(--accent);
  color: var(--accent);
}

body.speedread-theme .score {
  height: 58px;
  display: grid;
  grid-template-columns: 1fr 48px 1fr;
  align-items: center;
  color: var(--muted);
  font-size: 14px;
}

body.speedread-theme .score > :last-child {
  text-align: right;
}

body.speedread-theme .back-button {
  width: 48px;
  height: 48px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: #fff;
  font-size: 21px;
  cursor: pointer;
}

body.speedread-theme .back-button:hover {
  color: var(--accent);
}

body.speedread-theme .reader-stage {
  display: grid;
  gap: 12px;
}

body.speedread-theme .reader-viewport {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 286px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(145deg, #202530, #171a20);
}

body.speedread-theme .reader-word {
  width: 100%;
  padding: 24px;
  color: #fff;
  font-size: clamp(44px, 15vw, 78px);
  font-weight: 650;
  line-height: 1.05;
  letter-spacing: 0;
  text-align: center;
}

body.speedread-theme .reader-word .focus {
  color: var(--accent);
}

body.speedread-theme .reader-stage[data-mode="chunking"] .reader-word {
  max-width: 94%;
  font-size: clamp(32px, 9vw, 54px);
}

body.speedread-theme .guided-text {
  width: 100%;
  max-height: 286px;
  padding: 24px;
  overflow: hidden;
  color: var(--muted);
  font-size: clamp(18px, 4.8vw, 24px);
  line-height: 1.75;
  text-align: left;
}

body.speedread-theme .guided-text span {
  border-radius: 5px;
  transition: background .12s ease, color .12s ease;
}

body.speedread-theme .guided-text .is-current {
  background: var(--accent);
  color: var(--trainer-button-text);
}

body.speedread-theme .peripheral-field {
  position: absolute;
  inset: 0;
}

body.speedread-theme .fixation {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 12px rgba(66, 200, 255, .1);
  transform: translate(-50%, -50%);
}

body.speedread-theme .edge-word {
  position: absolute;
  left: 50%;
  top: 50%;
  max-width: 46%;
  padding: 8px 10px;
  border-radius: 8px;
  color: #fff;
  font-size: clamp(21px, 7vw, 34px);
  font-weight: 650;
  line-height: 1.1;
  text-align: center;
  transform: translate(-50%, -50%);
}

body.speedread-theme .edge-word[data-edge="top"] {
  top: 14%;
}

body.speedread-theme .edge-word[data-edge="right"] {
  left: 82%;
}

body.speedread-theme .edge-word[data-edge="bottom"] {
  top: 86%;
}

body.speedread-theme .edge-word[data-edge="left"] {
  left: 18%;
}

body.speedread-theme .reader-progress {
  height: 5px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 255, 255, .12);
}

body.speedread-theme .reader-progress span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--accent);
  transition: width .1s linear;
}

body.speedread-theme .training-hint {
  min-height: 42px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
  text-align: center;
}

body.speedread-theme .reader-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

body.speedread-theme .copyright-bar {
  margin-top: auto;
}

@media (min-width: 768px) {
  body.speedread-theme.is-training-playing .trainer-shell {
    width: min(100%, 700px);
  }

  body.speedread-theme.is-training-playing .reader-viewport {
    min-height: 340px;
  }

  body.speedread-theme.is-training-playing .guided-text {
    max-height: 340px;
    padding: 30px 34px;
    font-size: 23px;
  }

  body.speedread-theme.is-training-playing .edge-word[data-edge="right"] {
    left: 86%;
  }

  body.speedread-theme.is-training-playing .edge-word[data-edge="left"] {
    left: 14%;
  }
}

@media (max-width: 767px) {
  body.speedread-theme .site-header {
    height: 64px;
    padding: 0 18px;
  }

  body.speedread-theme .brand img {
    width: 150px;
  }

  body.speedread-theme .training-game-main {
    padding-top: 20px;
    padding-bottom: 20px;
  }

  body.speedread-theme .training-type-grid {
    grid-template-columns: 1fr;
  }

  body.speedread-theme .training-type {
    min-height: 72px;
  }

  body.speedread-theme .reader-viewport {
    min-height: 250px;
  }

  body.speedread-theme .guided-text {
    max-height: 250px;
    padding: 18px;
  }

  body.speedread-theme .theory-page h1 {
    font-size: 42px !important;
  }
}

@media (max-width: 360px) {
  body.speedread-theme .reader-word {
    font-size: 42px;
  }

  body.speedread-theme .reader-stage[data-mode="chunking"] .reader-word {
    font-size: 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  body.speedread-theme .guided-text span,
  body.speedread-theme .reader-progress span {
    transition: none;
  }
}