.header-nav {
  display: flex;
  gap: 24px;
}

.nav-link {
  font-family: var(--font-hand);
  font-size: 16px;
  color: var(--text-light);
  text-decoration: none;
  transition: color 0.2s;
  position: relative;
}

.nav-link:hover {
  color: var(--primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform 0.3s;
  filter: url(#hand-drawn);
}

.nav-link:hover::after {
  transform: scaleX(1);
}

.typo-demos {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.typo-h1 {
  font-family: var(--font-title);
  font-size: 42px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--text);
  border-bottom: 2px solid var(--border);
  padding-bottom: 8px;
  filter: url(#hand-drawn);
}

.typo-h2 {
  font-family: var(--font-title);
  font-size: 34px;
  font-weight: 400;
  line-height: 1.25;
  color: var(--text);
}

.typo-h3 {
  font-family: var(--font-title);
  font-size: 28px;
  font-weight: 400;
  color: var(--text);
}

.typo-h4 {
  font-family: var(--font-title);
  font-size: 24px;
  font-weight: 400;
  color: var(--text);
}

.typo-h5 {
  font-family: var(--font-hand);
  font-size: 18px;
  font-weight: 400;
  color: var(--text-light);
}

.typo-body-demo {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 8px;
}

.typo-body {
  font-family: var(--font-hand);
  font-size: 18px;
  line-height: 1.7;
  color: var(--text);
}

.typo-secondary {
  color: var(--text-light);
}

.typo-small {
  font-family: var(--font-hand);
  font-size: 14px;
  color: var(--text-light);
  opacity: 0.8;
}

.typo-link-demo {
  display: flex;
  gap: 24px;
  margin-top: 8px;
}

.typo-link {
  font-family: var(--font-hand);
  font-size: 18px;
  color: var(--primary);
  text-decoration: none;
  border-bottom: 2px solid var(--primary);
  filter: url(#hand-drawn);
  transition: opacity 0.2s;
  padding-bottom: 1px;
}

.typo-link:hover {
  opacity: 0.7;
}

.typo-link-external {
  border-bottom-style: dashed;
}

.notation-demos {
  display: flex;
  flex-wrap: wrap;
  gap: 24px 40px;
  align-items: center;
}

.notation-row {
  font-family: var(--font-hand);
  font-size: 22px;
}

.notation-underline {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='12' viewBox='0 0 200 12'%3E%3Cpath d='M2 8 Q50 2, 100 7 Q150 12, 198 5' stroke='%23e07a5f' stroke-width='2.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-position: bottom left;
  background-repeat: repeat-x;
  background-size: 200px 12px;
  padding-bottom: 6px;
}

.notation-circle {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='60' viewBox='0 0 160 60'%3E%3Cellipse cx='80' cy='30' rx='75' ry='25' stroke='%23e07a5f' stroke-width='2' fill='none' transform='rotate(-2 80 30)' stroke-linecap='round'/%3E%3C/svg%3E");
  background-position: center;
  background-repeat: no-repeat;
  background-size: 115% 110%;
  padding: 8px 16px;
}

.notation-highlight {
  background: linear-gradient(180deg, transparent 10%, rgba(242, 204, 143, 0.5) 10%, rgba(242, 204, 143, 0.5) 90%, transparent 90%);
  padding: 2px 4px;
  filter: url(#hand-drawn);
}

.notation-highlight-half {
  background: linear-gradient(180deg, transparent 55%, rgba(242, 204, 143, 0.45) 55%, rgba(242, 204, 143, 0.45) 90%, transparent 90%);
  padding: 2px 4px;
  filter: url(#hand-drawn);
}

.notation-box {
  border: 2px solid var(--primary);
  filter: url(#hand-drawn-strong);
  border-radius: 2px;
  padding: 4px 12px;
}

.notation-strike {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='8' viewBox='0 0 200 8'%3E%3Cpath d='M0 5 Q50 2, 100 5 Q150 8, 200 3' stroke='%23c44536' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-position: center;
  background-repeat: repeat-x;
  background-size: 200px 8px;
  color: var(--text-light);
}

.notation-bracket {
  position: relative;
  padding: 0 20px;
}

.notation-bracket::before,
.notation-bracket::after {
  font-size: 36px;
  color: var(--primary);
  font-weight: 300;
  line-height: 0.8;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
}

.notation-bracket::before {
  content: '[';
  left: 0;
}

.notation-bracket::after {
  content: ']';
  right: 0;
}

.notation-wavy {
  text-decoration: underline wavy var(--primary);
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.sketch-blockquote {
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-left: 5px solid var(--primary);
  padding: 20px 24px;
  margin-bottom: 16px;
  font-family: var(--font-hand);
  font-size: 18px;
  line-height: 1.7;
  color: var(--text);
  position: relative;
}

.sketch-blockquote::before {
  content: '\201C';
  font-size: 60px;
  color: var(--primary);
  opacity: 0.3;
  position: absolute;
  top: -10px;
  left: 12px;
  font-family: var(--font-title);
  line-height: 1;
}

.sketch-blockquote p {
  margin-bottom: 6px;
  padding-left: 16px;
}

.sketch-blockquote footer {
  font-size: 15px;
  color: var(--text-light);
  padding-left: 16px;
  margin-top: 8px;
}

.sketch-blockquote-accent {
  border-left-color: var(--accent);
}

.sketch-blockquote-accent::before {
  color: var(--accent);
}

.lists-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 32px;
}

.list-heading {
  font-family: var(--font-hand);
  font-size: 18px;
  margin-bottom: 12px;
  color: var(--text);
}

.sketch-ul {
  list-style: none;
  padding-left: 0;
  font-family: var(--font-hand);
  font-size: 17px;
  color: var(--text);
}

.sketch-ul li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 6px;
  line-height: 1.6;
}

.sketch-ul li::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 10px;
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  filter: url(#hand-drawn);
}

.sketch-ul .sketch-ul {
  margin-top: 6px;
}

.sketch-ul .sketch-ul li::before {
  background: none;
  border: 2px solid var(--primary);
  width: 6px;
  height: 6px;
}

.sketch-ol {
  list-style: none;
  padding-left: 0;
  font-family: var(--font-hand);
  font-size: 17px;
  color: var(--text);
  counter-reset: sketch-counter;
}

.sketch-ol li {
  position: relative;
  padding-left: 32px;
  margin-bottom: 6px;
  line-height: 1.6;
  counter-increment: sketch-counter;
}

.sketch-ol li::before {
  content: counter(sketch-counter) '.';
  position: absolute;
  left: 2px;
  color: var(--primary);
  font-weight: 600;
  font-size: 18px;
}

.sketch-checklist {
  list-style: none;
  padding-left: 0;
  font-family: var(--font-hand);
  font-size: 17px;
  color: var(--text);
}

.sketch-checklist li {
  position: relative;
  padding-left: 30px;
  margin-bottom: 6px;
  line-height: 1.6;
}

.sketch-checklist li::before {
  content: '';
  position: absolute;
  left: 2px;
  top: 4px;
  width: 18px;
  height: 18px;
  border: 2px solid var(--border);
  border-radius: 2px;
  filter: url(#hand-drawn);
}

.sketch-checklist li.checked::before {
  background: var(--primary);
  border-color: var(--primary);
}

.sketch-checklist li.checked::after {
  content: '\2713';
  position: absolute;
  left: 5px;
  top: 3px;
  font-size: 14px;
  color: #fff;
  font-weight: bold;
}

.sketch-checklist li.checked {
  color: var(--text-light);
}

.code-demos {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.code-inline-demo {
  font-family: var(--font-hand);
  font-size: 18px;
  line-height: 1.7;
}

.sketch-code-inline {
  font-family: 'Fira Code', monospace;
  font-size: 0.85em;
  background: rgba(61, 50, 41, 0.08);
  border: 1px solid rgba(61, 50, 41, 0.15);
  border-radius: 3px;
  padding: 2px 6px;
  color: var(--primary);
  filter: url(#hand-drawn);
}

.code-block-wrapper {
  background: #2b2520;
  border: 2px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}

.code-block-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 16px;
  background: rgba(255,255,255,0.05);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.code-block-lang {
  font-family: var(--font-hand);
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.code-block-filename {
  font-family: 'Fira Code', monospace;
  font-size: 12px;
  color: rgba(255,255,255,0.4);
}

.sketch-code-block {
  font-family: 'Fira Code', monospace;
  font-size: 14px;
  line-height: 1.7;
  color: #e8e0d8;
  padding: 16px 20px;
  margin: 0;
  overflow-x: auto;
  tab-size: 2;
}

.code-keyword { color: #e07a5f; }
.code-func { color: #81b29a; }
.code-string { color: #f2cc8f; }
.code-param { color: #e8e0d8; }
.code-comment { color: #7a6e63; font-style: italic; }
.code-number { color: #e88d97; }
.code-selector { color: #81b29a; }
.code-prop { color: #e8e0d8; }
.code-pseudo { color: #e07a5f; }

.code-diff-add {
  display: block;
  background: rgba(129, 178, 154, 0.15);
  color: #81b29a;
}

.code-diff-del {
  display: block;
  background: rgba(196, 69, 54, 0.15);
  color: #e07a5f;
}

.code-diff-context {
  display: block;
  color: #7a6e63;
}

.callouts-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.callout {
  display: flex;
  gap: 16px;
  padding: 16px 20px;
  border: 2px solid var(--border);
  border-radius: 4px;
  background: var(--bg-card);
  align-items: flex-start;
}

.callout-icon {
  font-size: 20px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border-radius: 50%;
  font-weight: bold;
}

.callout-body {
  font-family: var(--font-hand);
  font-size: 16px;
  line-height: 1.5;
}

.callout-body strong {
  font-family: var(--font-title);
  font-size: 18px;
  display: block;
  margin-bottom: 4px;
}

.callout-body p {
  color: var(--text-light);
}

.callout-info {
  border-left: 4px solid var(--secondary);
}

.callout-info .callout-icon {
  background: rgba(61, 133, 198, 0.15);
  color: var(--secondary);
}

.callout-warning {
  border-left: 4px solid var(--warning);
}

.callout-warning .callout-icon {
  background: rgba(242, 204, 143, 0.25);
  color: #b8860b;
}

.callout-success {
  border-left: 4px solid var(--success);
}

.callout-success .callout-icon {
  background: rgba(129, 178, 154, 0.15);
  color: var(--success);
}

.callout-error {
  border-left: 4px solid var(--danger);
}

.callout-error .callout-icon {
  background: rgba(196, 69, 54, 0.15);
  color: var(--danger);
}

.callout-note {
  border-left: 4px solid var(--text-light);
}

.callout-note .callout-icon {
  background: rgba(122, 110, 99, 0.1);
  color: var(--text-light);
}

.tags-demos {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.tags-row {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.tags-heading {
  font-family: var(--font-hand);
  font-size: 16px;
  color: var(--text-light);
}

.tags-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sketch-tag {
  font-family: var(--font-hand);
  font-size: 14px;
  padding: 3px 12px;
  border: 1.5px solid var(--border);
  border-radius: 3px;
  background: var(--bg-card);
  color: var(--text);
  filter: url(#hand-drawn);
  display: inline-block;
  transition: transform 0.2s;
}

.sketch-tag:hover {
  transform: rotate(1deg) scale(1.03);
}

.tag-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.tag-secondary { background: var(--secondary); color: #fff; border-color: var(--secondary); }
.tag-accent { background: var(--accent); color: #fff; border-color: var(--accent); }
.tag-warning { background: var(--warning); color: #3d3229; border-color: var(--warning); }
.tag-danger { background: var(--danger); color: #fff; border-color: var(--danger); }
.tag-success { background: var(--success); color: #fff; border-color: var(--success); }

.tag-outline {
  background: transparent;
  border-style: dashed;
}

.tag-outline-primary { border-color: var(--primary); color: var(--primary); }
.tag-outline-accent { border-color: var(--accent); color: var(--accent); }
.tag-outline-warning { border-color: #b8860b; color: #b8860b; }

.tag-category {
  background: transparent;
  border: none;
  color: var(--primary);
  font-size: 15px;
  padding: 2px 8px;
  filter: none;
  text-decoration: underline;
  text-decoration-style: wavy;
  text-underline-offset: 3px;
  text-decoration-color: rgba(224, 122, 95, 0.4);
}

.tag-category:hover {
  text-decoration-color: var(--primary);
}

.sketch-badge {
  font-family: var(--font-hand);
  font-size: 12px;
  padding: 2px 10px;
  border-radius: 20px;
  background: var(--bg-card);
  color: var(--text);
  border: 1.5px solid var(--border);
  filter: url(#hand-drawn);
  display: inline-block;
  letter-spacing: 0.5px;
}

.badge-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.badge-accent { background: var(--accent); color: #fff; border-color: var(--accent); }
.badge-warning { background: var(--warning); color: #3d3229; border-color: var(--warning); }
.badge-danger { background: var(--danger); color: #fff; border-color: var(--danger); }

.table-wrapper {
  overflow-x: auto;
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: 4px;
}

.sketch-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-hand);
  font-size: 16px;
}

.sketch-table th,
.sketch-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1.5px dashed rgba(61, 50, 41, 0.2);
}

.sketch-table th {
  color: var(--text);
  font-weight: 400;
  font-size: 15px;
  background: rgba(61, 50, 41, 0.04);
  border-bottom: 2px solid var(--border);
}

.sketch-table td {
  color: var(--text-light);
}

.sketch-table tbody tr:hover {
  background: rgba(224, 122, 95, 0.04);
}

.sketch-table tbody tr:last-child td {
  border-bottom: none;
}

.dividers-demos {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.divider-label {
  font-family: var(--font-hand);
  font-size: 14px;
  color: var(--text-light);
  margin-top: 8px;
}

.divider-line svg {
  filter: url(#hand-drawn);
  width: 100%;
  max-width: 600px;
}

.divider-dots {
  max-width: 600px;
  height: 10px;
  background-image: radial-gradient(circle, var(--border) 1.5px, transparent 1.5px);
  background-size: 16px 10px;
  background-position: center;
  background-repeat: repeat-x;
  opacity: 0.4;
}

.divider-stars {
  max-width: 600px;
}

.divider-stars svg {
  filter: url(#hand-drawn);
}

.divider-ornament {
  max-width: 600px;
}

.divider-ornament svg {
  filter: url(#hand-drawn);
}

.btn-sm {
  font-size: 14px;
  padding: 6px 16px;
}

.btn-lg {
  font-size: 22px;
  padding: 14px 36px;
}

.card-tags {
  display: flex;
  gap: 6px;
  margin-top: 12px;
}

.select-field {
  cursor: pointer;
  border-bottom: 2px dashed var(--border);
  border-top: none;
  border-left: none;
  border-right: none;
}

.radio-group {
  display: flex;
  gap: 20px;
}

.radio-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-hand);
  font-size: 18px;
  cursor: pointer;
}

.radio-dot {
  width: 22px;
  height: 22px;
  border: 2px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.radio-inner {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: transparent;
  transition: background 0.2s;
}

.radio-inner.active {
  background: var(--primary);
}

.code-block-header-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.code-copy-btn {
  background: none;
  border: none;
  color: rgba(255,255,255,0.4);
  cursor: pointer;
  padding: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: color 0.2s, background 0.2s;
}

.code-copy-btn:hover {
  color: rgba(255,255,255,0.8);
  background: rgba(255,255,255,0.1);
}

.code-copy-btn.copied {
  color: var(--success);
}

.sketch-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
  backdrop-filter: blur(2px);
}

.sketch-modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.sketch-modal-overlay.active .sketch-modal {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.sketch-modal {
  background: var(--bg-card, #fffdf7);
  border: 2px solid var(--border, #3d3229);
  border-radius: 6px;
  width: 90%;
  max-width: 480px;
  transform: translateY(30px) scale(0.95);
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.25s ease;
}

.sketch-modal.active {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.sketch-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px 12px;
  border-bottom: 1.5px dashed rgba(61,50,41,0.2);
}

.sketch-modal-title {
  font-family: var(--font-title);
  font-size: 24px;
  font-weight: 400;
  color: var(--text);
  margin: 0;
}

.sketch-modal-close {
  background: none;
  border: none;
  font-size: 24px;
  color: var(--text-light);
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
  transition: color 0.2s;
}

.sketch-modal-close:hover {
  color: var(--danger);
}

.sketch-modal-body {
  padding: 16px 20px;
  font-family: var(--font-hand);
  font-size: 17px;
  line-height: 1.6;
  color: var(--text);
}

.sketch-modal-body p {
  margin-bottom: 8px;
}

.sketch-modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 12px 20px 16px;
  border-top: 1.5px dashed rgba(61,50,41,0.2);
}

.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.sketch-toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--bg-card, #fffdf7);
  border: 2px solid var(--border, #3d3229);
  border-radius: 4px;
  font-family: var(--font-hand);
  font-size: 16px;
  color: var(--text);
  pointer-events: auto;
  transform: translateX(120%);
  opacity: 0;
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.3s ease;
  box-shadow: 2px 3px 8px rgba(0,0,0,0.1);
  max-width: 360px;
  filter: url(#hand-drawn);
}

.sketch-toast.active {
  transform: translateX(0);
  opacity: 1;
}

.sketch-toast-info {
  border-left: 4px solid var(--secondary);
  background: rgba(61, 133, 198, 0.08);
}

.sketch-toast-success {
  border-left: 4px solid var(--success);
  background: rgba(129, 178, 154, 0.12);
}

.sketch-toast-warning {
  border-left: 4px solid #b8860b;
  background: rgba(242, 204, 143, 0.2);
}

.sketch-toast-error {
  border-left: 4px solid var(--danger);
  background: rgba(196, 69, 54, 0.12);
}

.sketch-toast.toast-show {
  transform: translateX(0);
  opacity: 1;
}

.sketch-toast.fading {
  opacity: 0;
  transition: opacity 0.8s ease;
}

.toast-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: bold;
  flex-shrink: 0;
}

.toast-icon-info { background: rgba(61,133,198,0.15); color: var(--secondary); }
.toast-icon-success { background: rgba(129,178,154,0.15); color: var(--success); }
.toast-icon-warning { background: rgba(242,204,143,0.25); color: #b8860b; }
.toast-icon-error { background: rgba(196,69,54,0.15); color: var(--danger); }

.toast-msg {
  flex: 1;
}

.toast-close {
  background: none;
  border: none;
  color: var(--text-light);
  font-size: 18px;
  cursor: pointer;
  padding: 0 2px;
  line-height: 1;
  opacity: 0.6;
  transition: opacity 0.2s;
}

.toast-close:hover {
  opacity: 1;
}

.sketch-tooltip-wrap {
  position: relative;
  display: inline-block;
}

.sketch-tooltip {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text, #3d3229);
  color: #fdf6e3;
  font-family: var(--font-hand);
  font-size: 14px;
  padding: 6px 12px;
  border-radius: 4px;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 500;
  filter: url(#hand-drawn);
}

.sketch-tooltip::after {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
}

.sketch-tooltip-top {
  bottom: calc(100% + 10px);
  transform: translateX(-50%) translateY(4px);
}

.sketch-tooltip-top::after {
  top: 100%;
  border-top-color: var(--text, #3d3229);
}

.sketch-tooltip-bottom {
  top: calc(100% + 10px);
  transform: translateX(-50%) translateY(-4px);
}

.sketch-tooltip-bottom::after {
  bottom: 100%;
  border-bottom-color: var(--text, #3d3229);
}

.sketch-tooltip-wrap:hover .sketch-tooltip-top {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.sketch-tooltip-wrap:hover .sketch-tooltip-bottom {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.sketch-accordion {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.accordion-item {
  border: 2px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  background: var(--bg-card);
}

.accordion-header {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 18px;
  background: none;
  border: none;
  font-family: var(--font-title);
  font-size: 20px;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  transition: background 0.2s;
}

.accordion-header:hover {
  background: rgba(224,122,95,0.05);
}

.accordion-arrow {
  font-size: 14px;
  color: var(--text-light);
  transition: transform 0.3s ease;
}

.accordion-item.open .accordion-arrow {
  transform: rotate(180deg);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.3s ease;
  padding: 0 18px;
  font-family: var(--font-hand);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-light);
}

.accordion-item.open .accordion-body {
  max-height: 300px;
  padding: 0 18px 16px;
}

.accordion-body p {
  margin-bottom: 6px;
}

.progress-demos {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.progress-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.progress-label {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-hand);
  font-size: 16px;
  color: var(--text);
}

.sketch-progress {
  height: 20px;
  background: rgba(61,50,41,0.06);
  border: 2px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  position: relative;
}

.sketch-progress-fill {
  height: 100%;
  background: var(--primary);
  border-radius: 8px;
  transition: width 1s ease;
  position: relative;
}

.sketch-progress-fill::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 4px,
    rgba(255,255,255,0.15) 4px,
    rgba(255,255,255,0.15) 8px
  );
}

.progress-secondary { background: var(--secondary); }
.progress-accent { background: var(--accent); }

.kbd-demos {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-family: var(--font-hand);
  font-size: 17px;
  color: var(--text);
}

.sketch-kbd {
  display: inline-block;
  font-family: 'Fira Code', monospace;
  font-size: 13px;
  padding: 3px 8px;
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  border-bottom-width: 3px;
  border-radius: 4px;
  color: var(--text);
  filter: url(#hand-drawn);
  box-shadow: 0 1px 2px rgba(0,0,0,0.08);
  vertical-align: middle;
  line-height: 1.4;
}

.sketch-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-hand);
  font-size: 16px;
  flex-wrap: wrap;
}

.breadcrumb-item {
  color: var(--primary);
  text-decoration: none;
  transition: opacity 0.2s;
}

.breadcrumb-item:hover {
  opacity: 0.7;
}

.breadcrumb-sep {
  color: var(--text-light);
  opacity: 0.5;
}

.breadcrumb-current {
  color: var(--text-light);
}

.sketch-pagination {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.page-btn {
  font-family: var(--font-hand);
  font-size: 16px;
  padding: 6px 14px;
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
}

.page-btn:hover {
  background: rgba(224,122,95,0.08);
  transform: translateY(-1px);
}

.page-active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.page-active:hover {
  background: var(--primary);
}

.page-dots {
  font-family: var(--font-hand);
  font-size: 18px;
  color: var(--text-light);
  padding: 0 4px;
}

.page-prev,
.page-next {
  font-size: 14px;
  color: var(--text-light);
}

.avatar-demos {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.avatar-row {
  display: flex;
  align-items: center;
  gap: 16px;
}

.sketch-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-hand);
  font-size: 20px;
  font-weight: 400;
  border: 2px solid var(--border);
  flex-shrink: 0;
}

.sketch-avatar-sm {
  width: 36px;
  height: 36px;
  font-size: 16px;
}

.sketch-avatar-lg {
  width: 64px;
  height: 64px;
  font-size: 26px;
}

.sketch-figure {
  border: 2px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  background: var(--bg-card);
  max-width: 480px;
}

.sketch-figure-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 200px;
  background: rgba(61,50,41,0.04);
  color: var(--text-light);
  opacity: 0.5;
}

.sketch-figure figcaption {
  font-family: var(--font-hand);
  font-size: 14px;
  color: var(--text-light);
  padding: 10px 16px;
  text-align: center;
  border-top: 1.5px dashed rgba(61,50,41,0.2);
}

.sketch-avatar-img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border);
  flex-shrink: 0;
}

.sketch-avatar-img.sketch-avatar-sm {
  width: 36px;
  height: 36px;
}

.sketch-avatar-img.sketch-avatar-lg {
  width: 64px;
  height: 64px;
}

.figure-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.sketch-figure-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.social-demos {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

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

.social-icon {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border: 2px solid var(--border);
  border-radius: 4px;
  background: var(--bg-card);
  color: var(--text);
  text-decoration: none;
  font-family: var(--font-hand);
  font-size: 15px;
  transition: transform 0.2s, background 0.2s, box-shadow 0.2s;
}

.social-icon:hover {
  transform: translateY(-2px) rotate(0.5deg);
  box-shadow: 2px 3px 0 var(--border);
  background: rgba(224,122,95,0.06);
}

.social-icon svg {
  flex-shrink: 0;
}

.social-label {
  white-space: nowrap;
}

.social-row-sm {
  gap: 8px;
}

.social-icon-sm {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  text-decoration: none;
  transition: transform 0.2s, background 0.2s, color 0.2s;
  filter: url(#hand-drawn);
}

.social-icon-sm:hover {
  transform: scale(1.1) rotate(3deg);
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.comments-area {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.comment-compose {
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: 6px;
  padding: 20px;
}

.comment-compose-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.comment-compose-name {
  font-family: var(--font-hand);
  font-size: 16px;
  color: var(--text-light);
}

.comment-textarea {
  width: 100%;
  min-height: 80px;
  font-family: var(--font-hand);
  font-size: 16px;
  color: var(--text);
  background: transparent;
  border: 1.5px dashed rgba(61,50,41,0.25);
  border-radius: 4px;
  padding: 10px 14px;
  resize: vertical;
  outline: none;
  transition: border-color 0.2s;
}

.comment-textarea:focus {
  border-color: var(--primary);
  border-style: solid;
}

.comment-textarea::placeholder {
  color: var(--text-light);
  opacity: 0.5;
}

.comment-compose-footer {
  display: flex;
  justify-content: flex-end;
  margin-top: 12px;
}

.comment-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.comment-item {
  display: flex;
  gap: 12px;
}

.comment-avatar {
  flex-shrink: 0;
  padding-top: 4px;
}

.comment-body {
  flex: 1;
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: 6px;
  padding: 16px;
}

.comment-body-reply {
  background: rgba(61,50,41,0.02);
}

.comment-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.comment-author {
  font-family: var(--font-title);
  font-size: 18px;
  color: var(--text);
  font-weight: 400;
}

.comment-date {
  font-family: var(--font-hand);
  font-size: 13px;
  color: var(--text-light);
  opacity: 0.7;
}

.comment-text {
  font-family: var(--font-hand);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-light);
  margin-bottom: 4px;
}

.comment-actions {
  display: flex;
  gap: 16px;
  margin-top: 8px;
}

.comment-action-btn {
  background: none;
  border: none;
  font-family: var(--font-hand);
  font-size: 14px;
  color: var(--text-light);
  cursor: pointer;
  padding: 2px 0;
  transition: color 0.2s;
  opacity: 0.7;
}

.comment-action-btn:hover {
  color: var(--primary);
  opacity: 1;
}

.comment-like-count {
  color: var(--primary);
  font-size: 13px;
}

.comment-reply {
  display: flex;
  gap: 10px;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px dashed rgba(61,50,41,0.15);
}

.sketch-select-wrap {
  position: relative;
}

.sketch-select-trigger {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: transparent;
  border: none;
  border-bottom: 2px dashed var(--border);
  padding: 8px 0;
  font-family: var(--font-hand);
  font-size: 18px;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  transition: border-color 0.2s;
}

.sketch-select-trigger:hover,
.sketch-select-wrap.open .sketch-select-trigger {
  border-bottom-color: var(--primary);
  border-bottom-style: solid;
}

.sketch-select-arrow {
  color: var(--text-light);
  transition: transform 0.25s ease;
  flex-shrink: 0;
}

.sketch-select-wrap.open .sketch-select-arrow {
  transform: rotate(180deg);
}

.sketch-select-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: -20px;
  right: -20px;
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: 4px;
  z-index: 100;
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  overflow: hidden;
  box-shadow: 2px 4px 10px rgba(0,0,0,0.08);
}

.sketch-select-wrap.open .sketch-select-dropdown {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.sketch-select-option {
  font-family: var(--font-hand);
  font-size: 17px;
  padding: 10px 20px;
  color: var(--text);
  cursor: pointer;
  transition: background 0.15s;
}

.sketch-select-option:hover {
  background: rgba(224,122,95,0.08);
}

.sketch-select-option.active {
  color: var(--primary);
  background: rgba(224,122,95,0.06);
}

@media (max-width: 768px) {
  .header-nav {
    display: none;
  }

  .notation-demos {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

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

  .typo-link-demo {
    flex-direction: column;
    gap: 12px;
  }

  .sketch-pagination {
    gap: 4px;
  }

  .page-btn {
    padding: 5px 10px;
    font-size: 14px;
  }

  .toast-container {
    right: 10px;
    left: 10px;
  }

  .sketch-toast {
    max-width: 100%;
  }

  .sketch-modal {
    width: 95%;
  }

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

  .social-icon {
    padding: 8px 12px;
    font-size: 14px;
  }

  .comment-item {
    flex-direction: column;
    gap: 8px;
  }

  .comment-reply {
    flex-direction: column;
    gap: 8px;
  }
}

/* Showcase compatibility补充 */
.anim-swing-wrapper {
  display: inline-flex;
  transform-origin: top center;
}

.code-block-diff .sketch-code-block {
  border-left: 3px solid rgba(129, 178, 154, 0.5);
}

.confetti-trigger,
.toast-trigger {
  cursor: pointer;
}

.sketch-select-value {
  display: inline-block;
}