:root {
  --bg-a: #0f172a;
  --bg-b: #1e293b;
  --card: rgba(255, 255, 255, 0.92);
  --card-strong: #ffffff;
  --text: #102033;
  --muted: #516073;
  --primary: #2563eb;
  --primary-dark: #1742a1;
  --secondary: #e2e8f0;
  --secondary-text: #18304a;
  --good: #0f9d58;
  --bad: #d64545;
  --shadow: 0 24px 60px rgba(15, 23, 42, 0.24);
  --radius: 22px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(96, 165, 250, 0.22), transparent 28%),
    radial-gradient(circle at top right, rgba(34, 197, 94, 0.16), transparent 26%),
    linear-gradient(145deg, var(--bg-a), var(--bg-b));
  padding: 28px;
}

.app-shell {
  max-width: 1220px;
  margin: 0 auto;
  display: grid;
  gap: 22px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.card {
  background: var(--card);
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.hero {
  padding: 28px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 8px;
  color: #2f6eea;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-weight: 700;
}

h1,
h2 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
}

h1 {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  line-height: 1;
}

h2 {
  font-size: 1.45rem;
}

.subcopy {
  margin: 12px 0 0;
  max-width: 65ch;
  color: var(--muted);
  line-height: 1.55;
}

.hero-badge {
  display: grid;
  gap: 10px;
  padding: 18px 20px;
  min-width: 120px;
  text-align: center;
  border-radius: 18px;
  background: linear-gradient(160deg, #1d4ed8, #22c55e);
  color: white;
  font-weight: 700;
  letter-spacing: 0.06em;
  box-shadow: 0 18px 30px rgba(29, 78, 216, 0.28);
}

.form-card,
.game-card {
  padding: 24px;
}

.game-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  gap: 18px;
  align-items: start;
}

.game-main,
.game-side {
  min-width: 0;
}

.game-side {
  display: grid;
  gap: 16px;
  justify-self: end;
  width: 100%;
  max-width: 420px;
}

label {
  display: grid;
  gap: 8px;
  margin-top: 16px;
  font-weight: 700;
  color: #1e3149;
}

input,
textarea,
select {
  width: 100%;
  border: 1px solid #cfd8e3;
  border-radius: 16px;
  padding: 14px 16px;
  font: inherit;
  background: var(--card-strong);
  color: var(--text);
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

textarea {
  resize: vertical;
  min-height: 130px;
}

input:focus,
textarea:focus,
select:focus {
  border-color: #6ca1ff;
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.actions {
  display: flex;
  gap: 12px;
  margin-top: 18px;
}

.actions.wrap {
  flex-wrap: wrap;
}

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

button {
  border: none;
  border-radius: 14px;
  padding: 13px 18px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
}

button:hover:not(:disabled) {
  transform: translateY(-1px);
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.primary {
  color: white;
  background: linear-gradient(135deg, var(--primary), #4f46e5);
  box-shadow: 0 14px 24px rgba(37, 99, 235, 0.24);
}

.secondary {
  color: var(--secondary-text);
  background: var(--secondary);
}

.ghost {
  color: #334155;
  background: transparent;
  border: 1px solid #ccd7e5;
}

.status,
.feedback,
.progress-text,
.meta-box {
  margin: 14px 0 0;
  min-height: 1.5em;
  color: var(--muted);
  line-height: 1.5;
}

.meta-box {
  padding: 14px 16px;
  border-radius: 16px;
  background: #f8fbff;
  border: 1px solid #dbe7f3;
}

.game-card {
  display: grid;
  gap: 16px;
}

.game-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 18px;
}

.score-pill {
  padding: 10px 14px;
  border-radius: 999px;
  background: #eff6ff;
  color: #1d4ed8;
  font-weight: 800;
  white-space: nowrap;
}

.prompt-panel {
  display: grid;
  gap: 10px;
  padding: 18px;
  border-radius: 18px;
  background: linear-gradient(180deg, #eff6ff, #f8fbff);
  border: 1px solid #dce8f7;
}

.prompt-label {
  margin: 0;
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: #4b6aa8;
  font-weight: 700;
}

.spoken-word {
  min-height: 72px;
  display: grid;
  align-items: center;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.6rem, 4vw, 2.5rem);
  font-weight: 700;
  color: #10233e;
}

.feedback {
  padding: 10px 14px;
  border-radius: 14px;
  background: #f8fafc;
}

.feedback.good {
  color: var(--good);
  background: rgba(15, 157, 88, 0.1);
}

.feedback.bad {
  color: var(--bad);
  background: rgba(214, 69, 69, 0.08);
}

.progress-text {
  font-size: 0.95rem;
}

.voice-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  margin-top: 12px;
}

.voice-btn {
  min-width: 180px;
}

.voice-status {
  color: var(--muted);
  font-size: 0.95rem;
}

.voice-status.listening {
  color: #1d4ed8;
  font-weight: 700;
}

.voice-status.error {
  color: var(--bad);
  font-weight: 700;
}

.keypad-shell {
  display: grid;
  gap: 10px;
  padding: 16px;
  border-radius: 18px;
  border: 1px solid #dce8f7;
  background: linear-gradient(180deg, #fbfdff, #f3f8ff);
  max-width: 100%;
  width: 100%;
}

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

.keypad-row {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(10, minmax(0, 1fr));
}

.keypad-row.row-2 {
  grid-template-columns: repeat(9, minmax(0, 1fr));
}

.keypad-row.row-3 {
  grid-template-columns: repeat(7, minmax(0, 1fr));
}

.keypad-row.row-4 {
  grid-template-columns: 1fr 1fr 1.2fr;
  max-width: 520px;
  margin: 0 auto;
}

.keycap {
  min-height: 48px;
  padding: 10px 8px;
  border-radius: 14px;
  border: 1px solid #cfd8e3;
  background: white;
  color: #18304a;
  font-weight: 800;
  box-shadow: 0 8px 16px rgba(15, 23, 42, 0.06);
}

.keycap.wide {
  grid-column: span 2;
}

.keycap.extra-wide {
  grid-column: span 3;
}

.keycap.action {
  background: #eaf2ff;
  color: #1d4ed8;
}

.keycap.space {
  grid-column: span 1;
}

.report-panel {
  margin-top: 8px;
  padding: 18px;
  border-radius: 18px;
  border: 1px solid #d9e4f2;
  background: #f8fbff;
}

.report-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin-bottom: 14px;
}

.report-summary {
  padding: 10px 14px;
  border-radius: 999px;
  background: #eaf2ff;
  color: #1d4ed8;
  font-weight: 800;
}

.report-body {
  display: grid;
  gap: 12px;
}

.report-card {
  padding: 14px 16px;
  border-radius: 14px;
  background: white;
  border: 1px solid #dbe7f3;
}

.report-list {
  margin: 10px 0 0;
  padding-left: 18px;
}

.report-list li {
  margin: 6px 0;
}

@media (max-width: 900px) {
  .grid,
  .hero {
    grid-template-columns: 1fr;
    display: grid;
  }

  .game-grid {
    grid-template-columns: 1fr;
  }

  .game-side {
    justify-self: stretch;
    max-width: none;
  }

  .hero-badge {
    grid-auto-flow: column;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .actions {
    flex-wrap: wrap;
  }

  .report-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .voice-row {
    align-items: stretch;
  }

  .voice-btn {
    width: 100%;
  }

  .keypad-row,
  .keypad-row.row-2,
  .keypad-row.row-3,
  .keypad-row.row-4 {
    padding: 0;
  }

  .keypad-row.row-4 {
    max-width: none;
  }

  .keycap {
    min-height: 44px;
    padding: 9px 6px;
    font-size: 0.9rem;
  }

  .answer-actions {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  body {
    padding: 16px;
  }

  .hero,
  .form-card,
  .game-card {
    padding: 18px;
  }

  .hero-badge {
    min-width: 0;
  }

  .voice-row {
    gap: 8px;
  }

  .keypad-shell {
    padding: 12px;
  }

  .keypad {
    gap: 6px;
  }

  .keypad-row {
    gap: 6px;
  }

  .keycap {
    min-height: 40px;
    border-radius: 12px;
  }

  .answer-actions {
    grid-template-columns: 1fr;
  }

  .voice-row {
    grid-template-columns: 1fr;
  }

  .keypad-row.row-4 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}