:root {
  --font-display: Fredoka, ui-rounded, system-ui, sans-serif;
  --font-body: Quicksand, Nunito, ui-sans-serif, system-ui, sans-serif;
  --primary: #F8A5B8;
  --primary-light: #FFCAD4;
  --primary-dark: #E8899C;
  --secondary: #7BC8F6;
  --secondary-light: #A5DDFB;
  --accent: #C9A0DC;
  --accent-dark: #A87DC2;
  --gold: #F5D76E;
  --success: #8ED16C;
  --bg-main: #FFF9F5;
  --bg-gradient: linear-gradient(135deg, #FFF9F5 0%, #F0F8FF 50%, #FFF5F8 100%);
  --text-dark: #5D4E60;
  --text-medium: #6B5C70;
  --text-light: #807084;
  --border: #F0E6EB;
  --card-bg: rgba(255, 255, 255, 0.92);
  --shadow: 0 12px 34px rgba(248, 165, 184, 0.15);
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 24px;
  --radius-xl: 28px;
  --radius-pill: 9999px;
}

body[data-shell="article"] { --shell-main: 900px; }
body[data-shell="hub"] { --shell-main: 1100px; }
body[data-shell="explorer"] { --shell-main: 1400px; }

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  font-family: var(--font-body);
  color: var(--text-dark);
  background: var(--bg-gradient);
  line-height: 1.7;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(circle at 18% 16%, rgba(248, 165, 184, 0.12), transparent 32%),
    radial-gradient(circle at 78% 9%, rgba(123, 200, 246, 0.12), transparent 30%),
    radial-gradient(circle at 58% 86%, rgba(201, 160, 220, 0.1), transparent 34%);
}

a { color: var(--primary-dark); text-decoration: none; font-weight: 750; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }
p { margin: 0 0 1rem; color: var(--text-medium); }

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 1000;
  padding: .65rem 1rem;
  border-radius: var(--radius-pill);
  background: var(--gold);
  color: var(--text-dark);
}
.skip-link:focus { top: 1rem; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, .9);
  backdrop-filter: blur(16px);
}

.header-inner {
  width: min(calc(100% - 2rem), 1500px);
  min-height: 70px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  color: var(--text-dark);
  text-decoration: none;
  min-width: 220px;
}
.brand strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.25rem;
  line-height: 1.1;
}
.brand small {
  display: block;
  max-width: 300px;
  color: var(--text-light);
  font-size: .78rem;
  line-height: 1.2;
}

#site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: .35rem;
  flex-wrap: wrap;
}
#site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: .45rem .72rem;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  color: var(--text-medium);
  font-size: .92rem;
  text-decoration: none;
}
#site-nav a:hover,
#site-nav a[aria-current="page"] {
  color: var(--primary-dark);
  border-color: var(--primary-dark);
  background: rgba(255, 202, 212, .42);
  box-shadow: inset 0 -3px 0 rgba(232, 137, 156, .32);
}

.nav-toggle { display: none; }

main {
  width: min(calc(100% - 2rem), var(--shell-main));
  margin: 0 auto;
  padding: 1.2rem 0 4rem;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  margin: .5rem 0 1rem;
  color: var(--text-light);
  font-size: .92rem;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(300px, .88fr);
  gap: clamp(1rem, 4vw, 2rem);
  align-items: center;
  padding: clamp(2rem, 5vw, 4rem);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: rgba(255, 255, 255, .78);
  box-shadow: var(--shadow);
}

.hero-label {
  display: inline-flex;
  width: fit-content;
  margin-bottom: .85rem;
  padding: .34rem .78rem;
  border-radius: var(--radius-pill);
  background: rgba(165, 221, 251, .32);
  color: var(--accent-dark);
  font-weight: 850;
}

h1, h2, h3 {
  margin: 0;
  font-family: var(--font-display);
  line-height: 1.12;
  letter-spacing: 0;
}
h1 {
  max-width: 880px;
  font-size: clamp(2.3rem, 5vw, 3.5rem);
  color: var(--text-dark);
}
h2 { font-size: clamp(1.65rem, 3.2vw, 2.35rem); color: var(--text-dark); }
h3 { font-size: 1.18rem; color: var(--text-dark); }

.lede {
  max-width: 760px;
  margin-top: 1rem;
  font-size: 1.08rem;
}

.hero-actions,
.stat-pills,
.related-grid {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
}
.hero-actions { margin-top: 1.4rem; }
.stat-pills { margin-top: 1.2rem; }
.stat-pills span {
  display: inline-flex;
  padding: .35rem .68rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, .74);
  color: var(--text-light);
  font-size: .86rem;
  font-weight: 750;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: .7rem 1.15rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  font: inherit;
  font-weight: 850;
  cursor: pointer;
  text-decoration: none;
  transition: transform .18s ease, box-shadow .18s ease;
}
.button:hover { transform: translateY(-2px); text-decoration: none; }
.button:active { transform: translateY(0); }
.button.primary {
  color: #fff;
  border-color: var(--primary-dark);
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  box-shadow: 0 8px 22px rgba(248, 165, 184, .26);
}
.button.secondary {
  color: #fff;
  border-color: var(--secondary);
  background: linear-gradient(135deg, var(--secondary-light), var(--secondary));
}
.button.ghost {
  color: var(--primary-dark);
  background: #fff;
  border-color: var(--primary);
}

.hero-visual {
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.content-section {
  margin-top: 1.25rem;
  padding: clamp(1.2rem, 3vw, 2rem);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--card-bg);
  box-shadow: var(--shadow);
}
.section-heading {
  max-width: 820px;
  margin-bottom: 1rem;
}
.section-heading p { margin-top: .65rem; }

.quick-grid,
.card-grid,
.tool-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}
.quick-grid article,
.info-card,
.tool,
.related-card,
.compact-row {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, .9);
  padding: 1rem;
}
.quick-grid strong,
.quick-grid span,
.compact-row strong,
.compact-row span {
  display: block;
}
.quick-grid span,
.compact-row span {
  margin-top: .3rem;
  color: var(--text-medium);
}
.info-card:hover,
.related-card:hover {
  transform: translateY(-2px);
}

.row-list {
  display: grid;
  gap: .75rem;
}
.compact-row {
  display: grid;
  grid-template-columns: minmax(190px, .35fr) 1fr;
  gap: .8rem;
}

.tool-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.tool label {
  display: block;
  margin: .6rem 0 .3rem;
  color: var(--text-dark);
  font-weight: 850;
}
.tool input,
.tool select {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .65rem .75rem;
  color: var(--text-dark);
  background: #fff;
  font: inherit;
}
.tool input:focus,
.tool select:focus,
.button:focus,
a:focus {
  outline: 3px solid rgba(123, 200, 246, .42);
  outline-offset: 2px;
}
.tool-output {
  display: block;
  margin-top: .8rem;
  padding: .75rem;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(255, 202, 212, .36), rgba(165, 221, 251, .28));
  color: var(--text-dark);
  font-weight: 750;
}
.checklist label {
  display: flex;
  gap: .55rem;
  align-items: flex-start;
  color: var(--text-medium);
  font-weight: 750;
}
.checklist input {
  width: auto;
  min-height: auto;
  margin-top: .35rem;
  accent-color: var(--primary-dark);
}
.search-tool {
  margin-bottom: 1rem;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: #fff;
}
table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
}
th, td {
  padding: .85rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--border);
}
th {
  font-family: var(--font-display);
  background: linear-gradient(135deg, rgba(255, 202, 212, .7), rgba(165, 221, 251, .55));
}
tr:last-child td { border-bottom: 0; }

.code-card {
  margin: 0;
  padding: 1rem;
  overflow-x: auto;
  white-space: pre-wrap;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--card-bg);
  color: var(--text-dark);
  font: 750 .95rem/1.65 var(--font-body);
}

.link-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .7rem;
  padding: 0;
  margin: 0;
  list-style: none;
}
.link-list li {
  padding: .8rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, .9);
}

.faq-list {
  display: grid;
  gap: .65rem;
}
details {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, .9);
  padding: .9rem 1rem;
}
summary {
  cursor: pointer;
  font-weight: 850;
  color: var(--text-dark);
}
details p { margin: .65rem 0 0; }

.related-card {
  color: var(--primary-dark);
}

.site-footer {
  width: min(calc(100% - 2rem), 1500px);
  margin: 0 auto 2rem;
  padding: 1.5rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: rgba(255, 255, 255, .86);
}
.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  justify-content: flex-end;
  gap: .7rem;
}
.fine-print {
  max-width: 760px;
  font-size: .9rem;
}

@media (max-width: 1120px) {
  .header-inner { align-items: flex-start; padding: .75rem 0; }
  .nav-toggle { display: inline-flex; }
  #site-nav {
    display: none;
    width: 100%;
    justify-content: flex-start;
  }
  #site-nav.open { display: flex; }
  .header-inner { flex-wrap: wrap; }
}

@media (max-width: 760px) {
  main { width: min(calc(100% - 1rem), var(--shell-main)); }
  .hero,
  .quick-grid,
  .card-grid,
  .tool-grid,
  .link-list,
  .site-footer {
    grid-template-columns: 1fr;
  }
  h1 { font-size: clamp(1.85rem, 7.6vw, 2.35rem); }
  .lede { font-size: 1rem; }
  .hero { padding: 1rem; }
  .hero-actions { gap: .55rem; }
  .button { padding: .62rem .9rem; }
  .stat-pills span:nth-child(n+2) { display: none; }
  .hero-visual { display: none; }
  .compact-row { grid-template-columns: 1fr; }
  .hero-actions,
  .stat-pills,
  .related-grid {
    justify-content: center;
  }
  .site-footer {
    display: block;
  }
  .site-footer nav {
    justify-content: flex-start;
    margin-top: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}