:root {
  --bg: #f7f6ef;
  --bg-soft: #ece8d8;
  --surface: rgba(255, 255, 255, 0.82);
  --surface-strong: rgba(255, 255, 255, 0.92);
  --text: #1f261d;
  --muted: #57624f;
  --primary: #0f766e;
  --primary-2: #115e59;
  --danger: #c2410c;
  --success: #15803d;
  --warning: #b45309;
  --border: rgba(31, 38, 29, 0.16);
  --shadow: 0 18px 44px rgba(16, 24, 17, 0.12);
}

:root[data-theme="dark"] {
  --bg: #131b1a;
  --bg-soft: #0f1514;
  --surface: rgba(23, 32, 30, 0.82);
  --surface-strong: rgba(26, 38, 35, 0.92);
  --text: #ecf0ea;
  --muted: #acc0b2;
  --primary: #2dd4bf;
  --primary-2: #14b8a6;
  --danger: #fb923c;
  --success: #4ade80;
  --warning: #f59e0b;
  --border: rgba(236, 240, 234, 0.16);
  --shadow: 0 20px 48px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Space Grotesk", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at 20% 10%, var(--bg-soft), var(--bg));
  transition: background 250ms ease, color 250ms ease;
}

h1,
h2,
h3 {
  font-family: "Fraunces", serif;
  margin: 0;
}

p {
  margin: 0;
}

.bg-art {
  position: fixed;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: -1;
}

.blob {
  position: absolute;
  width: 38vmax;
  aspect-ratio: 1;
  border-radius: 50%;
  filter: blur(46px);
  opacity: 0.28;
  animation: drift 18s ease-in-out infinite alternate;
}

.blob-1 {
  background: #f97316;
  top: -8%;
  left: -4%;
}

.blob-2 {
  background: #0891b2;
  right: -9%;
  bottom: -18%;
  animation-delay: 1.5s;
}

.grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(circle at center, black 35%, transparent 85%);
  opacity: 0.28;
}

@keyframes drift {
  from {
    transform: translateY(0) scale(1);
  }
  to {
    transform: translateY(-28px) scale(1.08);
  }
}

.app {
  width: min(1100px, 92vw);
  margin: 26px auto 40px;
  display: grid;
  gap: 18px;
}

.shell {
  animation: rise 560ms ease both;
}

.reveal {
  animation: rise 480ms ease both;
}

#quizScreen {
  display: grid;
  gap: 8px;
}

@keyframes rise {
  from {
    transform: translateY(14px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.card {
  background: var(--surface);
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(7px);
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
}

.eyebrow {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.73rem;
  margin-bottom: 6px;
}

h1 {
  font-size: clamp(1.5rem, 2.6vw, 2.15rem);
}

.setup-screen {
  padding: 22px;
  display: grid;
  gap: 14px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-weight: 500;
  font-size: 0.92rem;
}

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

input,
select,
textarea {
  width: 100%;
  padding: 11px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface-strong);
  color: var(--text);
  outline: none;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.2);
}

.upload-panel {
  display: grid;
  gap: 8px;
  border: 1px dashed var(--border);
  border-radius: 12px;
  padding: 14px;
}

.stats {
  padding: 12px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.chip {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 10px 12px;
  display: grid;
  gap: 3px;
}

.chip span {
  font-size: 0.78rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.chip strong {
  font-size: 1.06rem;
}

.progress-wrap {
  padding: 10px;
}

.progress-bar {
  height: 12px;
  border-radius: 999px;
  width: 0%;
  background: linear-gradient(90deg, #f97316, #0ea5e9 60%, #14b8a6);
  transition: width 280ms ease;
}

.question-card {
  padding: 20px;
  display: grid;
  gap: 14px;
}

.meta-row {
  display: flex;
  gap: 8px;
}

.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 5px 10px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: rgba(15, 118, 110, 0.13);
  color: var(--primary-2);
}

.badge.alt {
  background: rgba(249, 115, 22, 0.14);
  color: #c2410c;
}

.options {
  display: grid;
  gap: 10px;
}

.option-btn {
  border: 1px solid var(--border);
  background: var(--surface-strong);
  color: var(--text);
  border-radius: 13px;
  padding: 12px;
  text-align: left;
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.option-btn:hover {
  transform: translateX(3px);
  border-color: var(--primary);
}

.option-btn.correct {
  border-color: var(--success);
  background: rgba(34, 197, 94, 0.18);
}

.option-btn.wrong {
  border-color: var(--danger);
  background: rgba(244, 114, 23, 0.15);
}

.option-btn.locked {
  cursor: default;
}

.feedback {
  min-height: 28px;
  font-weight: 600;
}

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

.feedback.bad {
  color: var(--danger);
}

.nav {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  padding: 12px;
  flex-wrap: wrap;
}

.btn {
  border: none;
  border-radius: 12px;
  padding: 10px 14px;
  font-weight: 700;
  cursor: pointer;
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn.primary {
  background: var(--primary);
  color: white;
}

.btn.primary:hover {
  background: var(--primary-2);
}


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

.btn.ghost:hover {
  background: var(--primary-2);
  /* border: 1px solid var(--border);
  color: var(--text); */
}

.or {
  font-size: 22px;
  

}

.btn.danger {
  background: var(--danger);
  color: white;
}

.question-nav {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(42px, 1fr));
  gap: 8px;
  margin-top: 10px;
}

.leaderboard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.leaderboard-clear-btn,
.leaderboard-delete-btn {
  padding: 8px 10px;
  border-radius: 10px;
  font-size: 0.84rem;
}

.leaderboard-delete-btn {
  min-width: 78px;
}

.qnav-btn {
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface-strong);
  color: var(--text);
  height: 38px;
  cursor: pointer;
  font-weight: 700;
}

.qnav-btn.current {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(45, 212, 191, 0.24);
}

.qnav-btn.answered {
  background: rgba(45, 212, 191, 0.17);
}

.qnav-btn.wrong {
  background: rgba(244, 114, 23, 0.16);
}

#resultScreen {
  padding: 20px;
  display: grid;
  gap: 14px;
}

.result-summary {
  font-size: 1.18rem;
  font-weight: 700;
}

.result-actions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 10px;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}

th {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.72rem;
}

.hidden {
  display: none !important;

}

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

.small {
  font-size: 0.86rem;
}

.error {
  color: var(--danger);
  min-height: 1.2rem;
}

@media (max-width: 700px) {
  .app {
    width: min(96vw, 800px);
    margin-top: 16px;
  }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

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