:root {
  --brand: #2563eb;
  --brand-dark: #1d4ed8;
  --bg: #f8fafc;
  --card-bg: #ffffff;
  --text: #1e293b;
  --muted: #64748b;
  --border: #e2e8f0;

  --pastel-1: #fff1cc;
  --pastel-2: #ffe0e6;
  --pastel-3: #e0f2ff;
  --pastel-4: #e3ffe8;
  --pastel-5: #f2e6ff;
  --pastel-6: #ffe9d6;

  --accent-1: #f5a623;
  --accent-2: #ef5da8;
  --accent-3: #2ea3ff;
  --accent-4: #34c471;
  --accent-5: #a05aef;
  --accent-6: #ff7a45;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: linear-gradient(135deg, #fff8e7 0%, #e8f7ff 33%, #ffeef5 66%, #eefcf0 100%);
  background-attachment: fixed;
  color: var(--text);
  line-height: 1.5;
}

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

.site-header {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  border-top: 5px solid;
  border-image: linear-gradient(90deg, var(--accent-1), var(--accent-2), var(--accent-3), var(--accent-4), var(--accent-5), var(--accent-6)) 1;
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 14px;
  padding-bottom: 10px;
}

.brand {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
}

.header-search {
  display: flex;
  justify-content: center;
  padding-bottom: 16px;
}

.search-form {
  display: flex;
  gap: 8px;
  width: 100%;
  max-width: 560px;
}

.search-form input {
  flex: 1;
  padding: 12px 16px;
  border: 2px solid var(--brand);
  border-radius: 8px;
  font-size: 1.05rem;
  font-weight: 600;
}

.search-form input::placeholder {
  font-weight: 600;
  color: var(--muted);
}

.search-form button {
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  background: var(--brand);
  color: #fff;
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
}

.search-form button:hover {
  background: var(--brand-dark);
}

.topnav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
}

.topnav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  white-space: nowrap;
}

.topnav a:hover {
  color: var(--brand);
}

main.wrap {
  padding-top: 20px;
  padding-bottom: 60px;
  min-height: 60vh;
}

.hero {
  text-align: center;
  padding: 8px 0 12px;
}

.hero h1 {
  font-size: 2.2rem;
  margin: 0 0 6px;
  background: linear-gradient(90deg, var(--accent-3), var(--accent-5), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p {
  color: var(--muted);
  max-width: 600px;
  margin: 0 auto;
}

h2 {
  font-size: 1.4rem;
  margin: 32px 0 16px;
}

h3 {
  font-size: 1.05rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 24px 0 12px;
}

.breadcrumb {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 16px;
}

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

.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 14px;
}

.category-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-top: 5px solid var(--accent-1);
  border-radius: 12px;
  padding: 18px;
  text-decoration: none;
  color: var(--text);
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: transform 0.15s, box-shadow 0.15s;
}

.category-card:nth-of-type(6n+1) { background: var(--pastel-1); border-top-color: var(--accent-1); }
.category-card:nth-of-type(6n+2) { background: var(--pastel-2); border-top-color: var(--accent-2); }
.category-card:nth-of-type(6n+3) { background: var(--pastel-3); border-top-color: var(--accent-3); }
.category-card:nth-of-type(6n+4) { background: var(--pastel-4); border-top-color: var(--accent-4); }
.category-card:nth-of-type(6n+5) { background: var(--pastel-5); border-top-color: var(--accent-5); }
.category-card:nth-of-type(6n+6) { background: var(--pastel-6); border-top-color: var(--accent-6); }

.category-card:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.12);
}

.category-name {
  font-weight: 600;
}

/* Collections */
.collection-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 14px;
}

.collection-card {
  position: relative;
  border-radius: 16px;
  padding: 22px 16px;
  text-decoration: none;
  color: var(--text);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  border: 2px solid transparent;
  transition: transform 0.15s, box-shadow 0.15s;
}

.collection-card:nth-of-type(8n+1) { background: var(--pastel-1); }
.collection-card:nth-of-type(8n+2) { background: var(--pastel-3); }
.collection-card:nth-of-type(8n+3) { background: var(--pastel-2); }
.collection-card:nth-of-type(8n+4) { background: var(--pastel-4); }
.collection-card:nth-of-type(8n+5) { background: var(--pastel-5); }
.collection-card:nth-of-type(8n+6) { background: var(--pastel-6); }
.collection-card:nth-of-type(8n+7) { background: var(--pastel-3); }
.collection-card:nth-of-type(8n+8) { background: var(--pastel-1); }

.collection-card:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.14);
}

.collection-emoji {
  font-size: 2.6rem;
  line-height: 1;
}

.collection-name {
  font-weight: 700;
  font-size: 1.05rem;
}

.collection-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--accent-2);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.collection-hero {
  text-align: center;
  padding: 12px 0 8px;
}

.collection-hero-emoji {
  font-size: 3.5rem;
  display: block;
  line-height: 1;
  margin-bottom: 4px;
}

.collection-hero h1 {
  margin: 4px 0;
}

.collection-hero p {
  color: var(--muted);
  max-width: 620px;
  margin: 0 auto;
}

.collection-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin: 16px 0 24px;
}

.chip {
  background: var(--card-bg);
  border: 2px solid var(--border);
  border-radius: 20px;
  padding: 6px 14px;
  text-decoration: none;
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 600;
}

.chip:hover {
  border-color: var(--brand);
  color: var(--brand);
}

.category-count {
  color: var(--muted);
  font-size: 0.85rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 16px;
}

.thumb-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-top: 5px solid var(--accent-1);
  border-radius: 10px;
  overflow: hidden;
  text-decoration: none;
  color: var(--text);
  text-align: center;
  transition: transform 0.15s, box-shadow 0.15s;
}

.thumb-card:nth-of-type(6n+1) { border-top-color: var(--accent-1); }
.thumb-card:nth-of-type(6n+2) { border-top-color: var(--accent-2); }
.thumb-card:nth-of-type(6n+3) { border-top-color: var(--accent-3); }
.thumb-card:nth-of-type(6n+4) { border-top-color: var(--accent-4); }
.thumb-card:nth-of-type(6n+5) { border-top-color: var(--accent-5); }
.thumb-card:nth-of-type(6n+6) { border-top-color: var(--accent-6); }

.thumb-card:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.12);
}

.thumb-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: #ffffff;
  display: block;
}

.thumb-card span {
  display: block;
  padding: 8px 6px;
  font-size: 0.85rem;
  font-weight: 600;
}

.card-detail {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  align-items: flex-start;
}

.card-full-image {
  flex: 0 0 auto;
  max-width: 100%;
  width: 440px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #fff;
}

.card-detail-info {
  flex: 1 1 280px;
}

.card-detail-info h1 {
  margin-top: 0;
}

.card-views {
  color: var(--muted);
  font-size: 0.9rem;
}

.card-actions {
  display: flex;
  gap: 12px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.btn-download,
.btn-print,
.btn-color,
.btn-cbn {
  display: inline-block;
  color: #fff;
  padding: 12px 22px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
}

.btn-cbn {
  background: var(--accent-6);
}

.btn-cbn:hover {
  background: #e85f2b;
}

.btn-download {
  background: var(--brand);
}

.btn-download:hover {
  background: var(--brand-dark);
}

.btn-print {
  background: var(--accent-4);
}

.btn-print:hover {
  background: #269c58;
}

.btn-color {
  background: var(--accent-5);
}

.btn-color:hover {
  background: #8a3fd6;
}

.card-no-pdf {
  color: var(--muted);
  font-size: 0.9rem;
  font-style: italic;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
}

.color-page {
  text-align: center;
}

.color-title {
  margin: 4px 0 2px;
  background: linear-gradient(90deg, var(--accent-3), var(--accent-5), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.color-hint {
  color: var(--muted);
  margin: 0 0 14px;
}

.color-canvas-wrap {
  max-width: 460px;
  margin: 0 auto;
  background: #fff;
  border-radius: 16px;
  border: 3px solid var(--border);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
  overflow: hidden;
  display: flex;
  justify-content: center;
}

#coloring-canvas {
  max-width: 100%;
  max-height: 48vh;
  width: auto;
  height: auto;
  display: block;
  touch-action: manipulation;
  cursor: pointer;
}

.color-controls {
  margin: 16px auto 0;
  max-width: 640px;
  background: var(--card-bg);
  border: 2px solid var(--border);
  border-radius: 16px;
  padding: 14px;
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.06);
}

.color-palette {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 14px;
}

.color-swatch {
  position: relative;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 3px solid #fff;
  box-shadow: 0 0 0 2px var(--border);
  cursor: pointer;
  padding: 0;
  transition: transform 0.1s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.color-swatch:hover {
  transform: scale(1.08);
}

.color-swatch.active {
  box-shadow: 0 0 0 4px var(--brand);
  transform: scale(1.12);
}

.swatch-check {
  color: #fff;
  font-size: 1.4rem;
  font-weight: 900;
  opacity: 0;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
  pointer-events: none;
}

.color-swatch.active .swatch-check {
  opacity: 1;
}

.swatch-white {
  box-shadow: 0 0 0 2px var(--border), inset 0 0 0 1px #d9d9d9;
}

.swatch-white .swatch-check {
  color: #333;
  text-shadow: none;
}

.color-swatch-custom {
  background: conic-gradient(#e63946, #f77f00, #fee440, #38b000, #00b4d8, #4361ee, #7209b7, #f72585, #e63946);
  overflow: hidden;
}

.color-swatch-custom .custom-plus {
  font-size: 1.8rem;
  font-weight: 700;
  color: #fff;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
  pointer-events: none;
  line-height: 1;
}

.color-swatch-custom input[type="color"] {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  border: none;
  cursor: pointer;
}

.color-toolbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.tool-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  border: 2px solid var(--border);
  border-radius: 12px;
  padding: 8px 16px;
  font-size: 1.4rem;
  cursor: pointer;
  background: var(--card-bg);
  color: var(--text);
  min-width: 72px;
}

.tool-btn span {
  font-size: 0.75rem;
  font-weight: 700;
}

.tool-btn:hover {
  border-color: var(--brand);
  color: var(--brand);
  background: #f0f6ff;
}

.tool-link {
  text-decoration: none;
  color: var(--text);
}

/* Color by number */
.cbn-status {
  font-weight: 700;
  color: var(--muted);
  margin: 0 0 12px;
}

.cbn-status.cbn-done {
  color: var(--accent-4);
  font-size: 1.25rem;
}

.cbn-swatch {
  position: relative;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 3px solid #fff;
  box-shadow: 0 0 0 2px var(--border);
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.1s;
}

.cbn-swatch:hover {
  transform: scale(1.08);
}

.cbn-swatch.active {
  box-shadow: 0 0 0 4px var(--brand);
  transform: scale(1.12);
}

.cbn-num {
  font-weight: 900;
  font-size: 1.35rem;
  color: #fff;
  text-shadow: 0 0 3px rgba(0, 0, 0, 0.7), 0 1px 2px rgba(0, 0, 0, 0.7);
  pointer-events: none;
  line-height: 1;
}

.cbn-swatch.hint {
  animation: cbnPulse 0.7s ease;
}

@keyframes cbnPulse {
  0%, 100% { transform: scale(1); box-shadow: 0 0 0 2px var(--border); }
  50% { transform: scale(1.3); box-shadow: 0 0 0 6px var(--accent-2); }
}

@media print {
  .no-print,
  .site-header,
  .site-footer {
    display: none !important;
  }

  main.wrap {
    padding: 0;
  }

  .color-canvas-wrap {
    max-width: 100%;
    max-height: none;
    border: none;
    box-shadow: none;
  }

  #coloring-canvas {
    max-height: none;
  }
}

/* Footer nav */
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 20px;
  margin-bottom: 10px;
}

.footer-nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 600;
}

.footer-nav a:hover {
  color: var(--brand);
}

/* Content pages (About / FAQ / Contact) */
.content-page {
  max-width: 720px;
  margin: 0 auto;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px 32px;
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.05);
}

.content-page h1 {
  margin-top: 0;
}

.content-page h2 {
  font-size: 1.2rem;
  margin: 24px 0 8px;
}

.content-page ul {
  padding-left: 20px;
}

.content-page li {
  margin-bottom: 6px;
}

.content-cta {
  display: inline-block;
  margin-top: 8px;
  color: var(--brand);
  font-weight: 700;
  text-decoration: none;
}

.faq-item {
  border-top: 1px solid var(--border);
  padding-top: 8px;
  margin-top: 16px;
}

.faq-item:first-of-type {
  border-top: none;
}

/* Contact form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 16px;
}

.contact-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-weight: 600;
}

.contact-form input,
.contact-form textarea {
  padding: 10px 12px;
  border: 2px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--brand);
}

.btn-submit {
  align-self: flex-start;
  background: var(--brand);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 12px 26px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
}

.btn-submit:hover {
  background: var(--brand-dark);
}

.contact-success {
  background: #e3ffe8;
  border: 2px solid var(--accent-4);
  border-radius: 12px;
  padding: 18px 20px;
  font-weight: 600;
}

.contact-error {
  color: #c0392b;
  font-weight: 600;
}

/* Activity canvases (maze, connect-the-dots) */
#maze-canvas,
#dots-canvas {
  max-width: 100%;
  max-height: 62vh;
  width: auto;
  height: auto;
  display: block;
}

#maze-canvas {
  touch-action: none;
  cursor: crosshair;
}

#dots-canvas {
  touch-action: manipulation;
  cursor: pointer;
}

.maze-difficulty {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 14px;
}

.diff-btn {
  border: 2px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
  border-radius: 20px;
  padding: 8px 20px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
}

.diff-btn.active {
  background: var(--brand);
  color: #fff;
  border-color: var(--brand);
}

/* Word search */
#ws-canvas {
  max-width: 100%;
  max-height: 62vh;
  width: auto;
  height: auto;
  display: block;
  touch-action: none;
  cursor: pointer;
}

.ws-words {
  list-style: none;
  padding: 0;
  margin: 16px auto 0;
  max-width: 560px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 18px;
}

.ws-words li {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.03em;
  color: var(--text);
}

.ws-words li.found {
  text-decoration: line-through;
  opacity: 0.85;
}