:root {
  --bg-top: #eff9f3;
  --bg-bottom: #fdf4dd;
  --ink: #15314b;
  --muted: #5e7083;
  --surface: rgba(255, 255, 255, 0.9);
  --line: rgba(21, 49, 75, 0.12);
  --accent: #1b9aaa;
  --accent-2: #ff885b;
  --correct: #23986b;
  --incorrect: #d94a57;
  --shadow: 0 24px 60px rgba(20, 45, 69, 0.12);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Manrope", "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(255, 136, 91, 0.22), transparent 35%),
    radial-gradient(circle at top right, rgba(27, 154, 170, 0.22), transparent 32%),
    linear-gradient(180deg, var(--bg-top), var(--bg-bottom));
}

button {
  font: inherit;
  border: none;
  cursor: pointer;
}

.page-shell {
  position: relative;
  overflow: hidden;
}

.ambient {
  position: absolute;
  border-radius: 999px;
  filter: blur(22px);
  opacity: 0.55;
  pointer-events: none;
}

.ambient-left {
  width: 240px;
  height: 240px;
  left: -40px;
  top: 140px;
  background: rgba(27, 154, 170, 0.16);
}

.ambient-right {
  width: 280px;
  height: 280px;
  right: -80px;
  top: 440px;
  background: rgba(240, 182, 70, 0.24);
}

.app {
  position: relative;
  z-index: 1;
  width: min(1120px, calc(100vw - 28px));
  margin: 0 auto;
  padding: 28px 0 48px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero {
  display: grid;
  grid-template-columns: 1.6fr 0.8fr;
  gap: 20px;
  padding: 26px;
}

.eyebrow {
  margin: 0 0 8px;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 800;
}

.hero h1,
.tips-card h2,
.current-word,
.item-card-header h2,
.summary-value,
.result-badge {
  font-family: "Fredoka", "Trebuchet MS", sans-serif;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2rem, 3vw, 3.1rem);
  line-height: 1;
}

.hero-text {
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.6;
  max-width: 60ch;
}

.hero-status {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: space-between;
  gap: 16px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-difficulty {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1.2fr 1.5fr 160px;
  gap: 16px;
  align-items: center;
  padding: 18px 20px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid var(--line);
}

.difficulty-copy h2 {
  margin: 0;
  font-family: "Fredoka", "Trebuchet MS", sans-serif;
  font-size: 1.45rem;
}

.difficulty-hint {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.difficulty-controls {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.difficulty-slider {
  width: 100%;
  accent-color: var(--accent-2);
}

.difficulty-scale {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 700;
  text-align: center;
}

.difficulty-value-card {
  min-height: 96px;
  padding: 12px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.82);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 8px;
}

.difficulty-value {
  margin: 0;
  font-family: "Fredoka", "Trebuchet MS", sans-serif;
  font-size: 1.75rem;
  line-height: 1;
}

.difficulty-threshold {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.status-pill,
.ghost-button,
.secondary-button,
.record-button,
.level-tab,
.item-tile,
.result-badge {
  transition:
    transform 160ms ease,
    background-color 160ms ease,
    border-color 160ms ease,
    color 160ms ease,
    box-shadow 160ms ease;
}

.status-pill {
  align-self: flex-start;
  padding: 12px 16px;
  border-radius: 999px;
  background: rgba(27, 154, 170, 0.12);
  color: var(--accent);
  font-weight: 800;
}

.ghost-button,
.secondary-button {
  min-height: 48px;
  padding: 0 16px;
  border-radius: 16px;
  font-weight: 700;
}

.ghost-button {
  background: rgba(255, 255, 255, 0.78);
  color: var(--ink);
  border: 1px solid var(--line);
}

.ghost-button:hover,
.secondary-button:hover,
.level-tab:hover,
.item-tile:hover {
  transform: translateY(-1px);
}

.tips-grid {
  margin-top: 18px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.tips-card {
  padding: 22px;
}

.tips-card h2 {
  margin: 0 0 14px;
  font-size: 1.2rem;
}

.tips-card ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.8;
}

.tips-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.controls {
  margin-top: 18px;
  padding: 20px;
}

.level-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.level-tab {
  min-height: 48px;
  padding: 0 18px;
  border-radius: 16px;
  background: rgba(27, 154, 170, 0.08);
  color: var(--ink);
  font-weight: 800;
}

.level-tab.active {
  background: linear-gradient(135deg, var(--accent), #44c1cf);
  color: #ffffff;
  box-shadow: 0 18px 30px rgba(27, 154, 170, 0.24);
}

.summary-band {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.summary-band > div {
  padding: 16px 18px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
}

.summary-label {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.summary-value {
  margin: 8px 0 0;
  font-size: 1.65rem;
}

.summary-value.is-correct {
  color: var(--correct);
}

.summary-value.is-incorrect {
  color: var(--incorrect);
}

.progress-track {
  margin-top: 16px;
  height: 12px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(21, 49, 75, 0.08);
}

.progress-fill {
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.workspace {
  margin-top: 18px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.current-card,
.item-card {
  padding: 22px;
}

.current-topline,
.item-card-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
}

.result-column {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 12px;
  width: min(210px, 100%);
}

.current-meta,
.item-subtitle,
.prompt-line,
.result-label,
.readout-label {
  margin: 0;
  color: var(--muted);
}

.current-word {
  margin: 8px 0 0;
  font-size: clamp(2.6rem, 4vw, 4rem);
  line-height: 0.95;
}

.result-badge {
  min-width: 88px;
  min-height: 88px;
  padding: 10px;
  border-radius: 28px;
  display: grid;
  place-items: center;
  font-size: 2rem;
  font-weight: 700;
  background: rgba(21, 49, 75, 0.08);
}

.result-badge.correct {
  background: rgba(35, 152, 107, 0.14);
  color: var(--correct);
}

.result-badge.incorrect {
  background: rgba(217, 74, 87, 0.14);
  color: var(--incorrect);
}

.result-badge.pending {
  color: var(--muted);
}

.score-badges {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.score-badge {
  min-height: 88px;
  padding: 12px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.78);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
  text-align: center;
}

.score-badge-label {
  margin: 0;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.score-badge-value {
  margin: 0;
  font-family: "Fredoka", "Trebuchet MS", sans-serif;
  font-size: 1.5rem;
  line-height: 1;
}

.prompt-line {
  margin-top: 14px;
  font-size: 1rem;
  line-height: 1.7;
}

.recording-panel {
  margin-top: 22px;
  display: grid;
  grid-template-columns: 1fr 180px;
  gap: 14px;
}

.record-button {
  min-height: 66px;
  border-radius: 22px;
  background: linear-gradient(135deg, var(--accent-2), #ffb45e);
  color: #ffffff;
  font-size: 1.05rem;
  font-weight: 800;
  box-shadow: 0 20px 34px rgba(255, 136, 91, 0.22);
}

.record-button.recording {
  background: linear-gradient(135deg, #ff6b6b, #ff8458);
}

.record-button:disabled,
.ghost-button:disabled,
.secondary-button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.recording-readout {
  padding: 14px 16px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
}

.readout-value {
  margin: 0;
  font-weight: 800;
}

.compact-note {
  margin: 16px 0 0;
  min-height: 56px;
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
  color: var(--muted);
  line-height: 1.6;
  font-weight: 700;
}

.manual-actions {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.secondary-button {
  background: rgba(27, 154, 170, 0.1);
  color: var(--ink);
}

.secondary-button.danger {
  background: rgba(217, 74, 87, 0.11);
  color: var(--incorrect);
}

.item-card-header h2 {
  margin: 8px 0 0;
  font-size: 1.9rem;
}

.item-subtitle {
  max-width: 220px;
  text-align: right;
  line-height: 1.6;
}

.item-grid {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.item-tile {
  min-height: 94px;
  padding: 12px;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.78);
  text-align: left;
}

.item-tile.active {
  border-color: rgba(27, 154, 170, 0.36);
  box-shadow: 0 16px 28px rgba(27, 154, 170, 0.14);
}

.item-tile.correct {
  background: rgba(35, 152, 107, 0.12);
}

.item-tile.incorrect {
  background: rgba(217, 74, 87, 0.12);
}

.item-index {
  display: inline-flex;
  width: 30px;
  height: 30px;
  border-radius: 999px;
  align-items: center;
  justify-content: center;
  background: rgba(21, 49, 75, 0.08);
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
}

.item-text {
  margin: 12px 0 0;
  font-size: 1.25rem;
  font-weight: 800;
}

.item-status {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.86rem;
}

@media (max-width: 960px) {
  .hero,
  .tips-grid,
  .workspace {
    grid-template-columns: 1fr;
  }

  .hero-status {
    align-items: flex-start;
  }

  .hero-difficulty {
    grid-template-columns: 1fr;
  }

  .summary-band {
    grid-template-columns: repeat(2, 1fr);
  }

  .item-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .app {
    width: min(100vw - 18px, 100%);
    padding-top: 18px;
    padding-bottom: 24px;
  }

  .hero,
  .tips-card,
  .controls,
  .current-card,
  .item-card {
    padding: 18px;
    border-radius: 24px;
  }

  .summary-band {
    grid-template-columns: repeat(2, 1fr);
  }

  .recording-panel {
    grid-template-columns: 1fr;
  }

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

  .current-topline,
  .item-card-header {
    flex-direction: column;
  }

  .result-column {
    width: 100%;
  }

  .item-subtitle {
    max-width: none;
    text-align: left;
  }
}