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

:root {
  color-scheme: light;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --bg: #0f172a;
  --card: #111c35;
  --card-soft: #162443;
  --text: #f8fafc;
  --muted: #c6d0e4;
  --border: rgba(255, 255, 255, 0.1);
  --accent: #5eead4;
  --accent-strong: #22d3ee;
  --danger: #f43f5e;
  --warning: #fbbf24;
  --success: #22c55e;
}

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

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top, #1e3a8a, #0f172a 50%);
  color: var(--text);
  font-size: 16px;
  line-height: 1.5;
  display: flex;
  flex-direction: column;
}

body.locked {
  overflow: hidden;
}

body.locked main,
body.locked header,
body.locked footer {
  filter: blur(8px);
  pointer-events: none;
  user-select: none;
}

.landing {
  background: radial-gradient(circle at top, #164e63, #0f172a 60%);
}

a {
  color: inherit;
}

main {
  width: min(1200px, 100%);
  margin: 0 auto;
  padding: 0 1.5rem 2rem;
  flex: 1;
}

.page-header {
  width: min(1200px, 100%);
  margin: 0 auto;
  padding: 3rem 1.5rem 1.5rem;
}

.page-header.compact {
  padding-bottom: 0.5rem;
}

.page-footer {
  margin: 0 auto;
  width: min(1200px, 100%);
  padding: 1.5rem;
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
}

.page-footer.compact {
  padding-top: 0.5rem;
}

.eyebrow {
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: var(--accent);
  margin: 0 0 0.25rem;
}

h1,
h2,
h3 {
  margin: 0;
  font-weight: 600;
}

.subtitle {
  margin-top: 0.5rem;
  color: var(--muted);
  max-width: 60ch;
}

.landing-main {
  padding-top: 0;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--card);
  border-radius: 1.2rem;
  padding: 2rem;
  border: 1px solid var(--border);
  box-shadow: 0 10px 30px rgba(3, 7, 18, 0.6);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.primary-btn,
.secondary-btn,
.ghost-btn {
  border: none;
  border-radius: 999px;
  padding: 0.9rem 1.8rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  text-align: center;
}

.primary-btn {
  background: linear-gradient(120deg, var(--accent), var(--accent-strong));
  color: #051327;
  box-shadow: 0 10px 25px rgba(94, 234, 212, 0.35);
}

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

.secondary-btn {
  background: rgba(94, 234, 212, 0.15);
  color: var(--accent);
  border: 1px solid rgba(94, 234, 212, 0.4);
}

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

.ghost-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.content-card {
  background: var(--card);
  border-radius: 1.2rem;
  padding: 2rem;
  border: 1px solid var(--border);
  box-shadow: 0 15px 40px rgba(2, 6, 23, 0.7);
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.stack {
  display: flex;
  flex-direction: column;
}

.gap {
  gap: 0.5rem;
}

.input-row {
  display: flex;
  gap: 0.75rem;
}

input[type="text"] {
  flex: 1;
  border-radius: 0.9rem;
  border: 1px solid var(--border);
  background: rgba(15, 23, 42, 0.4);
  padding: 0.9rem 1rem;
  font-size: 1.1rem;
  color: var(--text);
  outline: none;
  transition: border 0.2s ease;
}

input[type="text"]:focus {
  border-color: var(--accent);
}

.form-hint {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0;
}

.status-message {
  min-height: 1.2rem;
  font-size: 0.9rem;
  color: var(--muted);
}

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

.hidden {
  display: none;
}

#sliderSection {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.question-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0;
}

.slider-header {
  display: flex;
  justify-content: space-between;
  font-weight: 600;
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 20px;
  border-radius: 999px;
  background: linear-gradient(90deg, #ef4444, #f97316, #22c55e);
  outline: none;
  transition: box-shadow 0.2s ease;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--thumb-color, #fff);
  border: 3px solid rgba(255, 255, 255, 0.65);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
  cursor: grab;
}

input[type="range"]::-moz-range-thumb {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--thumb-color, #fff);
  border: 3px solid rgba(255, 255, 255, 0.65);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
  cursor: grab;
}

.value-label {
  font-size: 2rem;
  font-weight: 600;
  text-align: center;
  color: var(--accent);
  margin: 0;
}

.privacy-note {
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
  margin: 0;
}

.docent-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
  padding-top: 0;
}

.session-card,
.chart-card {
  background: var(--card);
  border-radius: 1.2rem;
  border: 1px solid var(--border);
  padding: 2rem;
  box-shadow: 0 15px 40px rgba(2, 6, 23, 0.7);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.session-code {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 1.1rem;
}

.session-code strong {
  font-size: 3rem;
  letter-spacing: 0.2em;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  padding-top: 0.5rem;
}

.question-picker {
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
}

.question-options {
  display: grid;
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.question-option {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 0.85rem 1rem;
  background: rgba(255, 255, 255, 0.02);
  cursor: pointer;
  transition: border 0.2s ease, background 0.2s ease;
}

.question-option input {
  margin-top: 0.3rem;
}

.question-option strong {
  display: block;
  margin-bottom: 0.2rem;
}

.question-option.active {
  border-color: var(--accent);
  background: rgba(94, 234, 212, 0.08);
}

.huge {
  font-size: 2.5rem;
  font-weight: 600;
  margin: 0.2rem 0 0;
}

.chart-header h2 {
  margin-bottom: 0.3rem;
}

.active-question {
  background: rgba(15, 23, 42, 0.4);
  border: 1px solid var(--border);
  border-radius: 0.9rem;
  padding: 1rem 1.25rem;
}

.question-label-row {
  display: flex;
  justify-content: space-between;
  font-weight: 600;
  gap: 1rem;
  font-size: 0.95rem;
  color: var(--muted);
}

.live-meter {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-top: 1rem;
}

.meter-track {
  position: relative;
  height: 62px;
  border-radius: 999px;
  border: 1px solid var(--border);
  overflow: hidden;
  background: rgba(15, 23, 42, 0.8);
}

.meter-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, #f43f5e 0%, #f97316 50%, #22c55e 100%);
  opacity: 0.35;
}

.meter-track.empty .meter-gradient {
  opacity: 0.15;
}

.meter-pointer {
  position: absolute;
  top: 50%;
  left: 0%;
  transform: translate(-50%, -50%);
  background: var(--accent);
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  font-weight: 600;
  color: #031017;
  box-shadow: 0 10px 25px rgba(3, 7, 18, 0.45);
  transition: left 0.2s ease, background 0.2s ease;
  pointer-events: none;
}

.meter-scale {
  display: flex;
  justify-content: space-between;
  font-weight: 600;
  color: var(--muted);
}

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

.landing .card a {
  align-self: flex-start;
}

.input-row button {
  flex-shrink: 0;
}

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

body.session-live .chart-card {
  grid-column: span 2;
  min-height: 500px;
}

body.session-live .docent-grid {
  grid-template-columns: minmax(320px, 360px) 1fr;
}

@media (max-width: 1024px) {
  body.session-live .chart-card {
    grid-column: span 1;
  }

  body.session-live .docent-grid {
    grid-template-columns: 1fr;
  }
}

.pin-gate {
  position: fixed;
  inset: 0;
  background: rgba(2, 6, 23, 0.92);
  backdrop-filter: blur(8px);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.pin-gate.hidden {
  display: none;
}

.pin-card {
  background: var(--card);
  border-radius: 1.2rem;
  border: 1px solid var(--border);
  padding: 2rem;
  width: min(420px, 100%);
  box-shadow: 0 25px 60px rgba(2, 6, 23, 0.8);
}

.pin-card h2 {
  margin: 0 0 0.5rem;
}

.pin-card .subtitle {
  margin-bottom: 1.25rem;
}

@media (max-width: 640px) {
  .input-row {
    flex-direction: column;
  }

  .session-code strong {
    font-size: 2.4rem;
  }

  .button-row {
    flex-direction: column;
  }
}