:root {
  color-scheme: dark;
  --bg: #07110e;
  --panel: #0d1b17;
  --panel-2: #122620;
  --line: rgba(179, 213, 197, 0.16);
  --text: #eef8f2;
  --muted: #9eb3a8;
  --soft: #d8e8df;
  --green: #48f0a3;
  --green-2: #1dbf7a;
  --cyan: #58d5ff;
  --danger: #ff8b8b;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.38);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 20% 0%, rgba(72, 240, 163, 0.14), transparent 34rem),
    linear-gradient(135deg, #07110e 0%, #081714 48%, #050807 100%);
  color: var(--text);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

.app-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 56px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 12px 0 28px;
}

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

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid rgba(72, 240, 163, 0.5);
  border-radius: 8px;
  background: linear-gradient(145deg, rgba(72, 240, 163, 0.18), rgba(88, 213, 255, 0.08));
  color: var(--green);
  font-size: 14px;
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 17px;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
  margin-top: 2px;
}

.top-actions,
.hero-actions,
.form-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.ghost-link,
.primary-link,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border-radius: 8px;
  padding: 0 16px;
  border: 1px solid var(--line);
  font-weight: 700;
}

.ghost-link,
.button.secondary {
  color: var(--soft);
  background: rgba(255, 255, 255, 0.03);
}

.primary-link,
.button.primary {
  border-color: rgba(72, 240, 163, 0.55);
  background: linear-gradient(135deg, var(--green), var(--green-2));
  color: #03110b;
  box-shadow: 0 16px 40px rgba(29, 191, 122, 0.22);
}

.view {
  display: block;
}

.view.is-hidden {
  display: none;
}

.is-hidden {
  display: none !important;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.6fr);
  gap: 24px;
  align-items: stretch;
  padding: 42px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background:
    linear-gradient(135deg, rgba(18, 38, 32, 0.94), rgba(8, 17, 14, 0.92)),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.035) 0 1px, transparent 1px 80px);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

.hero h1 {
  max-width: 760px;
  margin-bottom: 18px;
  font-size: clamp(38px, 6vw, 74px);
  line-height: 0.98;
  letter-spacing: 0;
}

.hero-subtitle {
  max-width: 660px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}

.signal-panel {
  display: grid;
  align-content: end;
  gap: 12px;
}

.signal-panel > div {
  min-height: 100px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
}

.metric-label {
  display: block;
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 14px;
}

.signal-panel strong {
  font-size: 28px;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 18px;
  padding: 24px 0 0;
}

.panel-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px;
  background:
    linear-gradient(160deg, rgba(13, 27, 23, 0.92), rgba(7, 17, 14, 0.82)),
    rgba(255, 255, 255, 0.025);
  box-shadow: var(--shadow);
}

.panel-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 18px;
}

.panel-header h2 {
  margin: 0;
  font-size: 22px;
  line-height: 1.22;
}

.status-chip {
  flex: 0 0 auto;
  border: 1px solid rgba(88, 213, 255, 0.36);
  border-radius: 999px;
  padding: 7px 10px;
  color: var(--cyan);
  background: rgba(88, 213, 255, 0.08);
  font-size: 12px;
  font-weight: 800;
}

.transfer-meter {
  height: 14px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
}

.transfer-meter span {
  display: block;
  width: var(--score);
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--green), var(--cyan));
}

.metric-row,
.compare-table {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.metric-row > div,
.compare-table > div,
.focus-block {
  min-height: 86px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.035);
}

.metric-row span,
.compare-table span,
.focus-block span {
  display: block;
  margin-bottom: 9px;
  color: var(--muted);
  font-size: 12px;
}

.metric-row strong,
.compare-table strong,
.focus-block strong {
  font-size: 24px;
  overflow-wrap: anywhere;
}

.panel-note {
  margin: 16px 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.rhythm-bars {
  display: grid;
  gap: 16px;
}

.rhythm-bars > div {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr) 76px;
  align-items: center;
  gap: 12px;
}

.rhythm-bars span {
  color: var(--muted);
  font-size: 13px;
}

.rhythm-bars strong {
  text-align: right;
  color: var(--soft);
}

.bar-track {
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
}

.bar-track i {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--green-2), var(--green));
}

.focus-block {
  display: grid;
  align-content: center;
  min-height: 120px;
}

.section-grid {
  display: grid;
  grid-template-columns: minmax(180px, 260px) minmax(0, 1fr);
  gap: 24px;
  padding: 34px 0 0;
}

.section-heading h2 {
  margin: 0;
  font-size: 30px;
}

.latest-card,
.practice-form {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(13, 27, 23, 0.82);
  box-shadow: var(--shadow);
}

.latest-card {
  min-height: 250px;
  padding: 24px;
}

.empty-state {
  display: grid;
  min-height: 200px;
  place-items: center;
  align-content: center;
  gap: 10px;
  text-align: center;
  color: var(--muted);
}

.empty-state h3 {
  margin: 0;
  color: var(--text);
}

.empty-icon {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border: 1px dashed rgba(72, 240, 163, 0.55);
  border-radius: 8px;
  color: var(--green);
  font-size: 24px;
}

.record-summary {
  display: grid;
  gap: 18px;
}

.record-summary header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 18px;
}

.record-summary h3 {
  margin-bottom: 8px;
  font-size: 26px;
}

.record-date {
  color: var(--muted);
}

.rate-badge {
  flex: 0 0 auto;
  border: 1px solid rgba(72, 240, 163, 0.42);
  border-radius: 8px;
  padding: 12px 14px;
  background: rgba(72, 240, 163, 0.09);
  color: var(--green);
  font-size: 24px;
  font-weight: 800;
}

.rate-badge.split {
  display: grid;
  gap: 4px;
  min-width: 128px;
  font-size: 14px;
  line-height: 1.25;
}

.rate-badge.split span:last-child {
  color: var(--text);
  font-size: 18px;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.detail-item {
  min-height: 74px;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.035);
}

.detail-item span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 7px;
}

.detail-item strong {
  overflow-wrap: anywhere;
}

.record-notes {
  color: var(--soft);
  line-height: 1.65;
}

.video-button {
  width: max-content;
  min-height: 42px;
  border: 1px solid rgba(88, 213, 255, 0.38);
  border-radius: 8px;
  padding: 0 14px;
  background: rgba(88, 213, 255, 0.1);
  color: var(--cyan);
  cursor: pointer;
  font-weight: 800;
}

.video-preview {
  display: grid;
  gap: 8px;
}

.video-preview video {
  width: 100%;
  max-height: 420px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #000;
}

.video-error {
  margin: 0;
  color: var(--danger);
}

.form-header {
  display: grid;
  gap: 18px;
  max-width: 860px;
  margin: 18px auto 22px;
}

.form-header h1 {
  margin-bottom: 10px;
  font-size: clamp(34px, 5vw, 56px);
  letter-spacing: 0;
}

.form-header p:not(.eyebrow) {
  color: var(--muted);
}

.back-link {
  width: max-content;
  color: var(--green);
  font-weight: 800;
}

.practice-form {
  max-width: 860px;
  margin: 0 auto;
  padding: 24px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

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

.field.full {
  grid-column: 1 / -1;
}

.field span {
  color: var(--soft);
  font-weight: 750;
}

.field b {
  color: var(--green);
}

input,
select,
textarea {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 11px 13px;
  background: #091411;
  color: var(--text);
  outline: none;
}

textarea {
  resize: vertical;
  line-height: 1.55;
}

input:focus,
select:focus,
textarea:focus {
  border-color: rgba(72, 240, 163, 0.8);
  box-shadow: 0 0 0 3px rgba(72, 240, 163, 0.12);
}

input[aria-invalid="true"],
select[aria-invalid="true"] {
  border-color: var(--danger);
}

.rate-control {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 88px auto;
  align-items: center;
  gap: 10px;
}

.rate-control input[type="range"] {
  padding: 0;
  accent-color: var(--green);
}

.error {
  min-height: 18px;
  color: var(--danger);
  font-size: 12px;
}

.hint {
  color: var(--muted);
  font-size: 12px;
}

.form-actions {
  justify-content: flex-end;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.form-status {
  min-height: 22px;
  margin: 18px 0 0;
  color: var(--muted);
}

.form-status.is-error {
  color: var(--danger);
}

@media (max-width: 780px) {
  .app-shell {
    width: min(100% - 24px, 1180px);
    padding-top: 14px;
  }

  .topbar,
  .record-summary header {
    align-items: stretch;
    flex-direction: column;
  }

  .top-actions,
  .hero-actions,
  .form-actions {
    width: 100%;
  }

  .top-actions > *,
  .hero-actions > *,
  .form-actions > * {
    flex: 1;
  }

  .hero {
    grid-template-columns: 1fr;
    padding: 24px;
  }

  .hero h1 {
    font-size: 42px;
  }

  .dashboard-grid,
  .section-grid,
  .form-grid,
  .metric-row,
  .compare-table,
  .detail-grid {
    grid-template-columns: 1fr;
  }

  .panel-card {
    padding: 18px;
  }

  .panel-header {
    flex-direction: column;
  }

  .rhythm-bars > div {
    grid-template-columns: 64px minmax(0, 1fr);
  }

  .rhythm-bars strong {
    grid-column: 2;
    text-align: left;
  }

  .practice-form,
  .latest-card {
    padding: 18px;
  }

  .rate-control {
    grid-template-columns: 1fr 78px auto;
  }
}