@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Manrope:wght@400;500;600;700&display=swap");

:root {
  --bg: #0d1117;
  --panel: rgba(255, 255, 255, 0.05);
  --border: rgba(255, 255, 255, 0.08);
  --text: #e7ecf4;
  --muted: #9aa3b5;
  --accent: #7bf1d3;
  --accent-2: #7aa2ff;
  --card: rgba(255, 255, 255, 0.04);
  --shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

.hidden {
  display: none;
}

body {
  margin: 0;
  font-family: "Manrope", "Space Grotesk", sans-serif;
  background: radial-gradient(circle at 15% 20%, rgba(123, 241, 211, 0.1), transparent 25%),
              radial-gradient(circle at 85% 10%, rgba(122, 162, 255, 0.14), transparent 28%),
              linear-gradient(145deg, #0b1624, #0f1929 45%, #0a111b);
  color: var(--text);
  min-height: 100vh;
}

a {
  color: inherit;
}

.app-shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.02);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.badge {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #0a1017;
  padding: 10px 12px;
  border-radius: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.brand-text .title {
  font-size: 18px;
  font-weight: 700;
}

.brand-text .subtitle {
  font-size: 13px;
  color: var(--muted);
}

.controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.base-label {
  display: flex;
  flex-direction: column;
  font-size: 12px;
  color: var(--muted);
  gap: 6px;
}

.base-label input {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  color: var(--text);
  width: 260px;
}

.ghost-btn,
.primary-btn {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 14px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  transition: transform 120ms ease, border 120ms ease, background 120ms ease;
  font-weight: 600;
}

.ghost-btn:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.ghost-btn.sm {
  padding: 8px 10px;
  font-size: 12px;
}

.ghost-btn.recording {
  border-color: rgba(255, 122, 122, 0.8);
  color: #ff7a7a;
}

.primary-btn {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #0a111a;
  border: none;
}

.primary-btn:hover {
  transform: translateY(-1px);
}

main {
  margin-top: 22px;
}

.view.hidden {
  display: none;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px;
  box-shadow: var(--shadow);
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
  margin-bottom: 18px;
}

.panel-header.split {
  align-items: center;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 12px;
  color: var(--accent);
  margin-bottom: 4px;
}

h1 {
  margin: 0;
  font-size: 24px;
}

.muted {
  color: var(--muted);
  margin: 6px 0 0 0;
}

.status-pill {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  font-weight: 600;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: transform 140ms ease, border 140ms ease;
}

.card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.card h3 {
  margin: 0;
}

.card p {
  color: var(--muted);
  margin: 0;
}

.card .actions {
  margin-top: auto;
}

.stage-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 16px;
}

.stage-content {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.stage-meta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.stage-circles {
  display: flex;
  align-items: center;
  gap: 8px;
}

.circle {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--border);
}

.circle.active {
  background: var(--accent);
}

.circle.completed {
  background: var(--accent-2);
}

.section-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.03);
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  gap: 10px;
}

.section-head h3 {
  margin: 0;
}

.markdown p {
  margin: 0 0 8px 0;
  line-height: 1.6;
}

.markdown h2,
.markdown h3,
.markdown h1 {
  margin: 0 0 8px 0;
}

.audio-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
}

.tab-bar {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  margin-bottom: 10px;
}

.tab {
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font-weight: 600;
}

.tab.active {
  border-color: var(--accent);
  background: rgba(123, 241, 211, 0.12);
}

.answer-sheet {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.03);
  min-height: 200px;
  position: sticky;
  top: 18px;
}

.answer-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.sheet-stage {
  font-weight: 700;
}

.answer-group {
  margin-bottom: 12px;
}

.answer-group h4 {
  margin: 0 0 6px 0;
}

.answer-item {
  display: flex;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
}

.answer-item.form {
  align-items: center;
}

.answer-item input {
  flex: 1;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.answer-summary {
  font-weight: 700;
  margin-bottom: 8px;
}

.record-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.record-wrap.column {
  flex-direction: column;
  align-items: flex-start;
}

.primary-btn.full {
  width: 100%;
  margin-top: 10px;
  text-align: center;
}

.response-box {
  width: 100%;
  min-height: 160px;
  margin-top: 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  padding: 12px;
}

.modal.hidden {
  display: none;
}

.modal {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  z-index: 20;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
}

.modal-dialog {
  position: relative;
  background: #0e1420;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
  width: min(520px, 90vw);
  box-shadow: var(--shadow);
  z-index: 1;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.modal-body {
  color: var(--text);
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 14px;
}

.summary-list {
  margin-top: 10px;
  max-height: 320px;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.result-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.03);
}

.result-meta {
  color: var(--text);
  line-height: 1.4;
}

.result-row.ok {
  border-color: rgba(123, 241, 211, 0.5);
}

.result-row.miss {
  border-color: rgba(255, 122, 122, 0.5);
}

.result-row.blank {
  border-style: dashed;
}

.speaking-single {
  align-items: stretch;
}

.speaking-question {
  flex: 1;
}

.question-text {
  margin-top: 6px;
  line-height: 1.5;
}

.nav-row {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.record-visual {
  display: inline-flex;
  gap: 4px;
  margin: 6px 0;
}

.record-visual span {
  width: 4px;
  height: 18px;
  background: var(--accent);
  display: block;
  animation: pulse 0.9s ease-in-out infinite;
}

.record-visual span:nth-child(2) { animation-delay: 0.1s; }
.record-visual span:nth-child(3) { animation-delay: 0.2s; }
.record-visual span:nth-child(4) { animation-delay: 0.3s; }
.record-visual span:nth-child(5) { animation-delay: 0.4s; }
.record-visual span:nth-child(6) { animation-delay: 0.5s; }

@keyframes pulse {
  0%, 100% { height: 8px; opacity: 0.6; }
  50% { height: 24px; opacity: 1; }
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 10px;
  background: rgba(123, 241, 211, 0.12);
  color: var(--text);
  border: 1px solid rgba(123, 241, 211, 0.4);
}

.callout {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
}

.summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
  margin-top: 10px;
}

.summary-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.04);
}

.empty {
  color: var(--muted);
  text-align: center;
  padding: 16px;
  border: 1px dashed var(--border);
  border-radius: 12px;
}

@media (max-width: 900px) {
  .topbar,
  .panel-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .controls {
    width: 100%;
  }

  .base-label input {
    width: 100%;
  }

  .stage-layout {
    grid-template-columns: 1fr;
  }

  .answer-sheet {
    position: relative;
  }
}