:root {
  --bg: #f4f7fb;
  --ink: #1b2430;
  --muted: #4d5c70;
  --accent: #ff6f3c;
  --accent-2: #18b0b8;
  --card: #ffffff;
  --ok: #0f8f4f;
  --warn: #b54708;
  --border: #d8e1ec;
  --font-scale: 1;
  --base-font: 'Space Grotesk', sans-serif;
  --heading-font: 'Manrope', sans-serif;
}

html {
  font-size: calc(16px * var(--font-scale));
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--base-font);
  font-size: 1rem;
  color: var(--ink);
  background: radial-gradient(circle at 10% 10%, #dcf8ff 0%, transparent 30%),
    radial-gradient(circle at 80% 15%, #ffe7db 0%, transparent 35%),
    var(--bg);
  min-height: 100vh;
}

body.dyslexia-font {
  --base-font: 'Lexend', sans-serif;
  --heading-font: 'Lexend', sans-serif;
}

body.high-contrast {
  --bg: #000000;
  --ink: #fff35c;
  --muted: #8fff63;
  --accent: #8fff63;
  --accent-2: #fff35c;
  --card: #000000;
  --ok: #8fff63;
  --warn: #fff35c;
  --border: #8fff63;
  background: var(--bg);
}

body.high-contrast .bg-shape {
  display: none;
}

body.high-contrast .panel,
body.high-contrast .quiz,
body.high-contrast .results,
body.high-contrast .question-card,
body.high-contrast .result-card,
body.high-contrast .diagram-wrap,
body.high-contrast .accessibility-panel,
body.high-contrast .access-toggle,
body.high-contrast .diagram-font-control,
body.high-contrast .meta span {
  background: #000 !important;
  border-color: #8fff63 !important;
  color: #fff35c !important;
}

body.high-contrast select,
body.high-contrast textarea {
  background: #000;
  color: #fff35c;
  border-color: #8fff63;
}

body.high-contrast button {
  background: #8fff63;
  color: #000;
}

body.high-contrast .secondary,
body.high-contrast .purple-print,
body.high-contrast .access-fab {
  background: #fff35c;
  color: #000;
}

body.high-contrast .diagram-canvas {
  background: #000;
  border-color: #8fff63;
}

.bg-shape {
  position: fixed;
  z-index: -1;
  border-radius: 999px;
  filter: blur(20px);
  opacity: 0.4;
}

.shape-a {
  width: 280px;
  height: 280px;
  background: #9df0f7;
  top: -80px;
  right: 5%;
}

.shape-b {
  width: 220px;
  height: 220px;
  background: #ffd2c0;
  bottom: 40px;
  left: -50px;
}

.container {
  width: min(980px, 92vw);
  margin: 2rem auto 3rem;
}

.hero {
  margin-bottom: 1.2rem;
}

.eyebrow {
  margin: 0;
  text-transform: none;
  font-size: clamp(1.7rem, 3.5vw, 2.8rem);
  letter-spacing: 0;
  color: var(--accent-2);
  font-weight: 800;
  font-family: var(--heading-font);
}

h1 {
  margin: 0.2rem 0;
  font-family: var(--heading-font);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

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

.panel,
.quiz,
.results {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1rem;
  box-shadow: 0 8px 24px rgba(26, 36, 48, 0.08);
}

.controls {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.6rem;
}

.accessibility-panel {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.7rem;
  background: #fff;
}

.floating-access {
  position: fixed;
  top: 0.5rem;
  right: max(4vw, calc((100vw - min(980px, 92vw)) / 2));
  z-index: 30;
  display: grid;
  justify-items: end;
  gap: 0.4rem;
}

.access-fab {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  padding: 0;
  background: linear-gradient(135deg, #202837, #3d4f68);
}

.access-fab-icon {
  width: 45px;
  height: 45px;
  object-fit: contain;
  display: block;
}

.access-collapsed {
  display: none;
}

.floating-access .accessibility-panel {
  min-width: min(92vw, 640px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.16);
}

.access-title {
  margin: 0 0 0.5rem;
  font-weight: 800;
}

.access-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.access-btn {
  padding: 0.48rem 0.75rem;
  border-radius: 10px;
}

.access-readout {
  font-weight: 700;
  min-width: 3.6rem;
  text-align: center;
}

.access-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.38rem 0.55rem;
  background: #fff;
  font-weight: 600;
}

label {
  font-weight: 700;
  font-size: 0.95rem;
}

select,
textarea,
button {
  font-family: inherit;
  font-size: 1rem;
  border-radius: 12px;
}

select,
textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--border);
}

button {
  border: 0;
  background: linear-gradient(135deg, var(--accent), #ff965f);
  color: #fff;
  font-weight: 700;
  padding: 0.72rem 1rem;
  cursor: pointer;
  transition: transform 0.14s ease, opacity 0.14s ease;
}

button:hover {
  transform: translateY(-1px);
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.secondary {
  background: linear-gradient(135deg, #2d6cdf, #5e8fea);
}

.purple-print {
  background: linear-gradient(135deg, #6d28d9, #9333ea);
}

.button-icon {
  margin-right: 0.35rem;
}

.status {
  margin: 0.7rem 0 0;
  min-height: 1.2rem;
  color: var(--muted);
}

.hidden {
  display: none;
}

.question-card,
.result-card {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0.9rem;
  margin-top: 0.9rem;
  background: #fff;
}

.meta {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-bottom: 0.35rem;
  font-size: 0.88rem;
  color: var(--muted);
}

.meta span {
  background: #f5f8fc;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.15rem 0.55rem;
}

h3 {
  margin: 0.2rem 0 0.6rem;
  font-size: 1.05rem;
}

.question-text {
  margin: 0.2rem 0 0.6rem;
  font-size: 1.05rem;
  font-weight: 400;
  line-height: 1.45;
}

.diagram-wrap {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.8rem;
  margin-top: 0.8rem;
  background: #f9fcff;
}

.diagram-title {
  margin: 0 0 0.55rem;
  font-weight: 700;
  color: var(--ink);
}

.diagram-type-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 0.55rem;
}

.diagram-type-row label {
  font-size: 0.9rem;
}

.diagram-palette {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 0.6rem;
}

.palette-item {
  border: 1px dashed #6a7f97;
  border-radius: 10px;
  background: #fff;
  color: #27425f;
  font-weight: 700;
  padding: 0.4rem 0.55rem;
  cursor: grab;
  user-select: none;
}

.diagram-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 0.6rem;
}

.diagram-font-control {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.38rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  font-size: 0.9rem;
}

.diagram-font-control input[type='range'] {
  width: 130px;
}

.diagram-canvas {
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1.414;
  max-height: 78vh;
  border: 2px dashed #9fb4cb;
  border-radius: 10px;
  background: #fff;
  touch-action: none;
}

.diagram-item-body {
  cursor: move;
}

.diagram-handle {
  cursor: grab;
}

.diagram-resize-handle {
  cursor: nwse-resize;
}

.diagram-note {
  margin: 0.45rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.diagram-preview-wrap {
  margin: 0.55rem 0 0.3rem;
}

.diagram-preview {
  width: 100%;
  max-width: 540px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
}

textarea {
  min-height: 96px;
  resize: vertical;
}

.actions {
  display: flex;
  gap: 0.7rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.result-top {
  display: flex;
  justify-content: space-between;
  align-items: end;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.result-top h2 {
  margin: 0;
}

#scoreLine {
  margin: 0;
  font-weight: 800;
}

.feedback {
  margin: 0.55rem 0 0;
  color: var(--ink);
}

.mark-chip {
  display: inline-block;
  margin-top: 0.4rem;
  font-weight: 800;
  color: var(--ok);
}

@media (max-width: 640px) {
  .container {
    width: 94vw;
    margin-top: 1rem;
  }
}

@media print {
  body {
    background: #fff;
  }

  .no-print,
  .bg-shape {
    display: none !important;
  }

  .container {
    width: 100%;
    margin: 0;
  }

  .results,
  .result-card {
    box-shadow: none;
    border-color: #bbb;
  }
}