:root {
  --bg: #0b1021;
  --card: #121836;
  --muted: #b3c0e0;
  --text: #e9edff;
  --accent: #ff9f1c;
  --accent-2: #00c6b9;
  --error: #ff5c8a;
  --success: #6ee7a2;
  --border: #1f2748;
  --shadow: 0 10px 35px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Nunito", "Segoe UI", sans-serif;
  font-size: 18px;
  background: radial-gradient(circle at 20% 20%, rgba(0, 198, 185, 0.08), transparent 30%),
              radial-gradient(circle at 80% 10%, rgba(255, 159, 28, 0.1), transparent 30%),
              radial-gradient(circle at 50% 80%, rgba(110, 231, 162, 0.08), transparent 35%),
              var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  position: sticky;
  top: 0;
  background: rgba(11, 16, 33, 0.9);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}

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

.logo {
  font-size: 28px;
}

.title {
  font-weight: 800;
  letter-spacing: 0.5px;
}

.subtitle {
  font-size: 14px;
  color: var(--muted);
}

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

.chip {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border);
  color: var(--text);
}

.chip.muted {
  color: var(--muted);
}

.switch {
  position: relative;
  display: inline-block;
  width: 42px;
  height: 22px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0;
  right: 0; bottom: 0;
  background-color: #555b7a;
  transition: 0.2s;
  border-radius: 34px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 16px; width: 16px;
  left: 3px; bottom: 3px;
  background-color: white;
  transition: 0.2s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--accent-2);
}

input:checked + .slider:before {
  transform: translateX(20px);
}

.switch-label {
  font-size: 16px;
  color: var(--muted);
}

main {
  padding: 20px;
  max-width: 1100px;
  margin: 0 auto;
}

.panel {
  display: none;
}

.panel.active {
  display: block;
}

.panel.hidden {
  display: none;
}

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

.hero {
  text-align: center;
  padding: 36px;
}

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

p {
  color: var(--muted);
  font-size: 18px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.btn {
  border: none;
  border-radius: 12px;
  padding: 14px 18px;
  font-weight: 800;
  cursor: pointer;
  color: #0b1021;
  background: var(--muted);
  transition: transform 0.1s ease, box-shadow 0.2s;
}

.btn.primary {
  background: linear-gradient(135deg, var(--accent), #ffce66);
  color: #201010;
}

.btn.secondary {
  background: linear-gradient(135deg, #4fc8d3, #36a7a1);
  color: #041019;
}

.btn.ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}

.btn.small {
  padding: 8px 12px;
  min-width: 90px;
}

.btn:active {
  transform: translateY(1px);
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 12px;
}

label {
  font-weight: 600;
}

label input[type="checkbox"] {
  transform: scale(1.1);
}

label.inline {
  display: flex;
  align-items: center;
  gap: 10px;
}

.form-help {
  color: var(--muted);
  font-size: 16px;
}

.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 10px;
}

.nav-row {
  display: flex;
  justify-content: flex-start;
  gap: 10px;
  flex-wrap: wrap;
}

select, input[type="text"], input[type="number"] {
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  padding: 12px 14px;
  font-size: 18px;
}

.form-inline {
  display: flex;
  gap: 10px;
}

.form-inline.tight {
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.small-input {
  max-width: 100px;
}

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

input[type="range"] {
  accent-color: var(--accent);
  width: 160px;
}

.play-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.play-header {
  display: flex;
  justify-content: flex-start;
}

.prompt {
  font-size: 40px;
  font-weight: 800;
  text-align: center;
  padding: 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 14px;
}

.input-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
}

.voice-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.voice-controls.hidden {
  display: none;
}

.voice-status {
  min-height: 20px;
  color: var(--muted);
  font-size: 16px;
  font-weight: 700;
}

.voice-status.hidden {
  display: none;
}

.voice-status.ok {
  color: var(--success);
}

.voice-status.nope {
  color: var(--error);
}

.keypad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.keypad button {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  border-radius: 12px;
  font-size: 22px;
  padding: 14px 0;
}

.keypad button.wide {
  grid-column: span 2;
}

.keypad button.ghost {
  color: var(--muted);
}

.feedback {
  min-height: 20px;
  font-weight: 700;
}

.feedback.ok {
  color: var(--success);
}

.feedback.nope {
  color: var(--error);
}

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

.hint.hidden {
  display: none;
}

.hint-title {
  font-weight: 800;
  margin-bottom: 8px;
}

.hint-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 8px;
}

.hint-options button {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  border-radius: 10px;
  padding: 10px 0;
  font-weight: 800;
}

.progress-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--muted);
  font-size: 16px;
  font-weight: 700;
  gap: 8px;
  flex-wrap: wrap;
}

.pill {
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 16px;
  background: rgba(255, 255, 255, 0.06);
}

.pill.muted {
  color: var(--muted);
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin: 16px 0;
}

.stat {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px;
}

.stat-label {
  color: var(--muted);
  font-size: 16px;
}

.stat-value {
  font-size: 34px;
  font-weight: 800;
}

.ops-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  max-width: 1100px;
  margin: 0 auto;
}

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

.op-title {
  font-weight: 800;
  margin-bottom: 6px;
}

.op-stats {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--muted);
}

.heatmap-grid {
  display: grid;
  grid-template-columns: repeat(10, minmax(32px, 1fr));
  gap: 6px;
  margin-top: 10px;
}

.heat-cell {
  border-radius: 8px;
  padding: 6px;
  min-height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(255, 255, 255, 0.04);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 12px;
  color: #fff;
  transition: transform 0.1s ease;
}

.heat-cell:hover {
  transform: translateY(-2px);
}

.heat-label {
  font-weight: 700;
}

.heat-count {
  color: var(--muted);
  font-size: 11px;
}

.heat-empty {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--muted);
  padding: 12px 0;
}

.pill.good {
  border-color: rgba(110, 231, 162, 0.6);
  color: var(--success);
}

.pill.bad {
  border-color: rgba(255, 92, 138, 0.6);
  color: var(--error);
}

@media (max-width: 640px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .status {
    width: 100%;
    justify-content: space-between;
  }

  .form-inline {
    flex-direction: column;
  }

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