:root {
  color-scheme: light;
  --bg: #f6faf7;
  --ink: #203038;
  --muted: #5a6c75;
  --line: #cfddd9;
  --panel: #ffffff;
  --panel-soft: #edf7f5;
  --blue: #2366b5;
  --blue-dark: #174a87;
  --green: #2d8c62;
  --green-dark: #1f6547;
  --rose: #b94b68;
  --amber: #d88719;
  --shadow: 0 16px 42px rgba(32, 48, 56, 0.12);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(255, 214, 128, 0.26), transparent 34rem),
    linear-gradient(145deg, #f8fbfb 0%, var(--bg) 48%, #fff8ec 100%);
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 4px solid rgba(35, 102, 181, 0.28);
  outline-offset: 3px;
}

.app {
  min-height: 100vh;
}

.screen {
  width: min(1080px, 100%);
  min-height: 100vh;
  margin: 0 auto;
  padding: 22px clamp(16px, 4vw, 34px) 34px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  color: var(--ink);
  font-size: clamp(1.15rem, 1vw + 1rem, 1.5rem);
  font-weight: 850;
  text-decoration: none;
}

.brand-mark,
.sticker-icon {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 2px solid #f3c96c;
  border-radius: 8px;
  background: #fff6d9;
  box-shadow: inset 0 -4px 0 rgba(216, 135, 25, 0.1);
}

.top-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.public-screen {
  display: grid;
  align-content: start;
  gap: 22px;
}

.public-nav,
.public-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.public-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(240px, 0.45fr);
  gap: clamp(18px, 4vw, 42px);
  align-items: end;
  padding: clamp(22px, 5vw, 58px) 0 10px;
}

.public-hero h1 {
  max-width: 13ch;
  margin: 0;
  font-size: clamp(3rem, 9vw, 6.8rem);
  line-height: 0.96;
  letter-spacing: 0;
}

.public-hero p:not(.lead) {
  max-width: 58ch;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.5;
}

.edu-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.portal-card {
  display: grid;
  align-content: start;
  gap: 10px;
  min-height: 168px;
  padding: 20px;
  border: 2px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  text-align: left;
  box-shadow: 0 8px 20px rgba(32, 48, 56, 0.08);
}

.portal-card.featured {
  border-color: #a6d7c2;
  background: #eefaf4;
}

.portal-card.disabled {
  color: #6c7b82;
  background: #f5f7f7;
  cursor: default;
}

.portal-card strong {
  font-size: clamp(1.3rem, 2vw, 1.8rem);
}

.portal-card span {
  color: var(--muted);
  line-height: 1.45;
}

.public-footer {
  margin-top: 8px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-weight: 750;
}

.link-button {
  border: 0;
  background: transparent;
  color: var(--blue);
  font-weight: 850;
  text-decoration: underline;
  box-shadow: none;
}

.privacy-panel {
  max-width: 860px;
  margin: 0 auto;
}

.panel-subsection {
  margin-top: 18px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.compact-form {
  max-width: 520px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(280px, 0.92fr);
  align-items: center;
  gap: clamp(22px, 5vw, 64px);
  min-height: calc(100vh - 112px);
  padding-bottom: 40px;
}

.hero h1,
.setup h1,
.result h1 {
  max-width: 11ch;
  margin: 0;
  font-size: clamp(3.2rem, 12vw, 7rem);
  line-height: 0.95;
  letter-spacing: 0;
}

.hero p,
.lead {
  max-width: 56ch;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.1vw + 0.9rem, 1.32rem);
  line-height: 1.5;
}

.hero-visual {
  display: grid;
  gap: 14px;
  padding: clamp(18px, 4vw, 32px);
  border: 2px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.74);
  box-shadow: var(--shadow);
}

.sample-word {
  display: grid;
  place-items: center;
  min-height: clamp(130px, 26vw, 250px);
  padding: 18px;
  border-radius: 8px;
  background: linear-gradient(150deg, #ffffff, #edf7f5);
  color: var(--blue-dark);
  font-size: clamp(3.4rem, 9vw, 6.8rem);
  font-weight: 900;
}

.visual-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.mini-stat {
  min-height: 82px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.mini-stat strong {
  display: block;
  margin-top: 6px;
  font-size: 1.25rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.btn {
  min-height: 52px;
  padding: 0 20px;
  border: 2px solid transparent;
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  font-weight: 800;
  box-shadow: 0 6px 18px rgba(32, 48, 56, 0.1);
}

.btn.primary {
  background: var(--blue);
  color: #fff;
}

.btn.primary:hover {
  background: var(--blue-dark);
}

.btn.success {
  background: var(--green);
  color: #fff;
}

.btn.success:hover {
  background: var(--green-dark);
}

.btn.warning {
  border-color: #f2ca80;
  background: #fff6df;
  color: #6f4510;
}

.btn.ghost {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: none;
}

.btn.danger {
  border-color: #edb4bf;
  background: #fff2f4;
  color: #8b2b41;
}

.btn.small {
  min-height: 42px;
  padding: 0 14px;
  font-size: 0.95rem;
}

.panel {
  padding: clamp(18px, 4vw, 32px);
  border: 2px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: var(--shadow);
}

.setup {
  display: grid;
  align-content: center;
  min-height: calc(100vh - 84px);
}

.form-grid {
  display: grid;
  gap: 18px;
  margin-top: 26px;
}

.field {
  display: grid;
  gap: 8px;
}

.field span,
.section-label {
  color: var(--muted);
  font-weight: 800;
}

input,
select {
  width: 100%;
  min-height: 54px;
  padding: 0 14px;
  border: 2px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
}

.theme-grid,
.mode-grid,
.stats-grid,
.collection-grid,
.history-grid {
  display: grid;
  gap: 12px;
}

.theme-grid {
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
}

.theme-option {
  min-height: 84px;
  border: 2px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  font-weight: 850;
}

.theme-option[aria-pressed="true"] {
  border-color: var(--blue);
  background: #e8f1fc;
}

.dashboard {
  display: grid;
  gap: 18px;
}

.welcome-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: end;
}

.welcome-row h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.8rem);
  letter-spacing: 0;
}

.level-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 18px;
  border: 2px solid #a6d7c2;
  border-radius: 8px;
  background: #e9f8f0;
  color: #1d6245;
  font-weight: 900;
}

.stats-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.stat {
  min-height: 116px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.stat .value {
  display: block;
  margin-top: 10px;
  font-size: clamp(1.75rem, 4vw, 2.7rem);
  font-weight: 900;
}

.mode-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.track-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.track-strip span {
  min-height: 48px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--muted);
  font-weight: 800;
}

.mode-card {
  display: grid;
  align-content: start;
  min-height: 170px;
  padding: 20px;
  border: 2px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  text-align: left;
  box-shadow: 0 8px 20px rgba(32, 48, 56, 0.08);
}

.mode-card strong {
  margin-bottom: 8px;
  font-size: clamp(1.25rem, 2.8vw, 1.7rem);
}

.mode-card span {
  color: var(--muted);
  line-height: 1.4;
}

.exercise {
  display: grid;
  gap: 18px;
}

.exercise-head {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px;
  align-items: center;
}

.timer {
  display: inline-grid;
  place-items: center;
  min-width: 110px;
  min-height: 58px;
  padding: 0 14px;
  border: 2px solid #f2ca80;
  border-radius: 8px;
  background: #fff6df;
  color: #6f4510;
  font-size: 1.8rem;
  font-weight: 900;
}

.reading-surface {
  display: grid;
  place-items: center;
  min-height: min(48vh, 390px);
  padding: clamp(18px, 5vw, 44px);
  border: 2px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: var(--shadow);
  text-align: center;
}

.reading-text {
  max-width: 100%;
  color: var(--blue-dark);
  font-size: clamp(2.8rem, calc(90vw / var(--letters, 12)), 6.2rem);
  font-weight: 900;
  line-height: 0.98;
  overflow-wrap: break-word;
}

.reading-text.phrase {
  font-size: clamp(2.1rem, 7vw, 5.2rem);
}

.exercise-actions {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.exercise-actions.five {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.word-detail,
.hint-box {
  max-width: 68ch;
  margin-top: 18px;
  color: var(--muted);
  font-size: clamp(1rem, 1vw + 0.85rem, 1.24rem);
  line-height: 1.45;
}

.word-detail span {
  display: inline-block;
  margin-top: 8px;
  padding: 4px 8px;
  border-radius: 8px;
  background: var(--panel-soft);
  color: var(--blue-dark);
  font-weight: 800;
}

.spelling-surface {
  align-content: center;
  gap: 12px;
}

.spelling-word {
  font-size: clamp(2.6rem, 10vw, 6.5rem);
}

.spelling-form {
  display: grid;
  gap: 12px;
}

.hint-box {
  padding: 14px;
  border: 1px solid #a6d7c2;
  border-radius: 8px;
  background: #e9f8f0;
  color: #1d6245;
}

.feedback {
  padding: 18px;
  border: 2px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.feedback.ok {
  border-color: #a6d7c2;
  background: #eefaf4;
}

.feedback.needs-work {
  border-color: #f2ca80;
  background: #fff8e8;
}

.progress-track {
  height: 14px;
  overflow: hidden;
  border-radius: 999px;
  background: #dfeae7;
}

.progress-bar {
  width: var(--progress, 0%);
  height: 100%;
  background: linear-gradient(90deg, var(--green), var(--amber));
}

.topic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(185px, 1fr));
  gap: 10px;
}

.topic-choice {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 58px;
  padding: 12px;
  border: 2px solid var(--line);
  border-radius: 8px;
  background: #fff;
  font-weight: 850;
}

.topic-choice input {
  width: 22px;
  min-height: 22px;
}

.math-surface {
  min-height: min(42vh, 340px);
}

.math-question {
  max-width: 20ch;
  color: var(--blue-dark);
  font-size: clamp(2.2rem, 6vw, 5rem);
  font-weight: 900;
  line-height: 1.08;
  text-align: center;
}

.result {
  display: grid;
  gap: 18px;
}

.reward-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px;
  border: 2px solid #f2ca80;
  border-radius: 8px;
  background: #fff8e8;
}

.reward-card .big-sticker {
  display: grid;
  place-items: center;
  width: 84px;
  height: 84px;
  border-radius: 8px;
  background: #fff;
  font-size: 3rem;
}

.collection-grid {
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.sticker {
  display: grid;
  place-items: center;
  min-height: 142px;
  padding: 16px;
  border: 2px solid var(--line);
  border-radius: 8px;
  background: #fff;
  text-align: center;
}

.sticker.locked {
  color: #78878e;
  filter: grayscale(1);
  opacity: 0.72;
}

.sticker .emoji {
  font-size: 2.8rem;
}

.sticker strong {
  margin-top: 8px;
}

.history-grid {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.history-item {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.practice-list {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.practice-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.practice-row span,
.practice-row em {
  display: block;
  margin-top: 5px;
  color: var(--muted);
}

.practice-row em {
  color: #1d6245;
  font-style: normal;
  font-weight: 800;
}

.row-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.quiet {
  background: #f7faf9;
}

.quiet *,
.quiet *::before,
.quiet *::after {
  scroll-behavior: auto;
  transition: none !important;
  animation: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 760px) {
  .hero,
  .public-hero,
  .welcome-row,
  .exercise-head {
    grid-template-columns: 1fr;
  }

  .hero {
    align-content: start;
    min-height: auto;
  }

  .stats-grid,
  .edu-grid,
  .mode-grid,
  .exercise-actions,
  .exercise-actions.five,
  .track-strip,
  .practice-row {
    grid-template-columns: 1fr;
  }

  .row-actions {
    justify-content: flex-start;
  }

  .topbar {
    align-items: flex-start;
  }

  .top-actions {
    justify-content: flex-start;
  }

  .hero h1,
  .setup h1,
  .result h1 {
    max-width: 100%;
  }
}


.companion-card,
.companion-page {
  overflow: hidden;
}

.companion-hero {
  display: grid;
  grid-template-columns: minmax(150px, 220px) minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  padding: 18px;
  border: 2px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.companion-visual {
  display: grid;
  place-items: center;
  min-height: 180px;
  border-radius: 8px;
  background: linear-gradient(160deg, #fff8e8, #eefaf4);
  border: 2px solid #f2ca80;
  text-align: center;
}

.companion-visual span {
  display: block;
  font-size: clamp(4rem, 10vw, 7rem);
  animation: companion-bounce 900ms ease-out;
}

.companion-visual i {
  color: var(--muted);
  font-style: normal;
  font-weight: 850;
}

.companion-copy h2 {
  margin: 0 0 6px;
  font-size: clamp(1.8rem, 4vw, 3.2rem);
}

.companion-progress {
  margin: 14px 0 10px;
}

.companion-section {
  margin-top: 22px;
}

.companion-stage-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(145px, 1fr));
  gap: 12px;
}

.companion-stage {
  display: grid;
  place-items: center;
  min-height: 132px;
  padding: 14px;
  border: 2px solid var(--line);
  border-radius: 8px;
  background: #fff;
  text-align: center;
}

.companion-stage span {
  font-size: 2.5rem;
}

.companion-stage.locked {
  opacity: 0.62;
  filter: grayscale(1);
}

.evolution-reward,
.companion-card.evolved .companion-visual {
  animation: evolution-glow 2.5s ease-out;
}

@keyframes companion-bounce {
  0% { transform: translateY(0) scale(1); }
  35% { transform: translateY(-8px) scale(1.03); }
  100% { transform: translateY(0) scale(1); }
}

@keyframes evolution-glow {
  0% { box-shadow: 0 0 0 rgba(216, 135, 25, 0); }
  40% { box-shadow: 0 0 32px rgba(216, 135, 25, 0.36); }
  100% { box-shadow: 0 0 0 rgba(216, 135, 25, 0); }
}

.quiet .companion-visual span,
.quiet .evolution-reward,
.quiet .companion-card.evolved .companion-visual {
  animation: none;
}

@media (max-width: 760px) {
  .companion-hero {
    grid-template-columns: 1fr;
  }
}


.profiles-panel {
  display: grid;
  gap: 18px;
}

.profile-list {
  display: grid;
  gap: 12px;
}

.profile-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  padding: 14px;
  border: 2px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.profile-row.active {
  border-color: #f2ca80;
  background: #fff8e8;
}

.profile-avatar {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border-radius: 8px;
  background: #eefaf4;
  border: 1px solid var(--line);
  font-size: 2rem;
}

.profile-row span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
}

.status-pill {
  display: inline-grid;
  place-items: center;
  min-height: 38px;
  padding: 0 12px;
  border-radius: 999px;
  background: #1f724f;
  color: #fff !important;
  font-weight: 850;
}

.code-box {
  width: 100%;
  min-height: 118px;
  resize: vertical;
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  font-size: 0.82rem;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

@media (max-width: 760px) {
  .profile-row {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .profile-row .row-actions {
    grid-column: 1 / -1;
  }
}