@import url("https://fonts.googleapis.com/css2?family=Nunito:wght@400;500;600;700;800&family=Quicksand:wght@500;600;700&display=swap");

:root {
  --font-display: "Quicksand", ui-rounded, "Arial Rounded MT Bold", system-ui, sans-serif;
  --font-body: "Nunito", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;
  --max: 1180px;

  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  --transition-fast: 150ms ease;
  --transition-normal: 240ms ease;

  --white: #ffffff;
  --primary: #f8a5b8;
  --primary-light: #ffcad4;
  --primary-dark: #9f3f5d;
  --secondary: #7bc8f6;
  --secondary-light: #d7effd;
  --secondary-dark: #1f5f88;
  --accent: #c9a0dc;
  --accent-light: #f1e1f8;
  --accent-dark: #76508c;
  --gold: #f5d76e;
  --gold-light: #fff2b8;
  --gold-dark: #795600;
  --success: #8ed16c;
  --success-light: #e4f7d8;
  --success-dark: #376d25;
  --danger: #9e3248;
  --danger-light: #ffe3e9;

  --bg-main: #fff9f5;
  --bg-warm: #fff5f8;
  --bg-cream: #fff1d2;
  --bg-gradient: linear-gradient(135deg, #fff9f5 0%, #f0f8ff 48%, #fff5f8 100%);
  --card-bg: #ffffff;
  --card-bg-soft: rgba(255, 255, 255, 0.9);
  --card-bg-muted: rgba(255, 255, 255, 0.72);
  --border: #ead9e0;
  --border-strong: #d8bdc8;
  --shadow-color: rgba(159, 63, 93, 0.14);
  --shadow-soft: 0 10px 30px var(--shadow-color);
  --shadow: 0 18px 48px var(--shadow-color);
  --chrome-surface: rgba(255, 255, 255, 0.9);
  --chrome-shadow: 0 8px 28px rgba(69, 55, 70, 0.08);
  --grid-line: rgba(69, 55, 70, 0.035);
  --mask-solid: black;
  --button-shadow: 0 12px 28px rgba(118, 80, 140, 0.24);
  --button-shadow-hover: 0 16px 34px rgba(118, 80, 140, 0.3);
  --ghost-shadow: 0 8px 20px rgba(69, 55, 70, 0.07);
  --card-shadow-subtle: 0 8px 22px rgba(69, 55, 70, 0.06);
  --result-shadow: 0 8px 24px rgba(69, 55, 70, 0.06);
  --sprite-shadow: 0 8px 20px rgba(47, 109, 152, 0.12);
  --focus-glow: 0 0 0 4px rgba(47, 109, 152, 0.14);
  --secondary-border-soft: rgba(47, 109, 152, 0.2);
  --secondary-border-subtle: rgba(47, 109, 152, 0.18);
  --gold-border-subtle: rgba(121, 86, 0, 0.18);
  --gold-border-soft: rgba(121, 86, 0, 0.2);
  --success-border-soft: rgba(55, 109, 37, 0.2);
  --danger-border-soft: rgba(196, 80, 103, 0.24);
  --toolbox-overlay-start: rgba(255, 255, 255, 0.88);
  --toolbox-overlay-end: rgba(255, 245, 248, 0.78);
  --input-inset-highlight: rgba(255, 255, 255, 0.8);
  --footer-surface: rgba(255, 255, 255, 0.64);
  --text-dark: #453746;
  --text-medium: #635364;
  --text-light: #7f7180;
  --text-faint: #9b8f9c;
  --focus-ring: #2f6d98;

  --surface-primary: #fde8ee;
  --surface-secondary: #e8f6fe;
  --surface-accent: #f3e7f9;
  --surface-gold: #fff4bf;
  --surface-success: #e7f7dd;
  --surface-danger: #ffe3e9;

  color-scheme: light;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  font-family: var(--font-body);
  background: var(--bg-main);
  color: var(--text-dark);
  line-height: 1.68;
  text-rendering: optimizeLegibility;
}

body[data-theme="core"]::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(circle at 14% 12%, var(--surface-primary) 0, transparent 34%),
    radial-gradient(circle at 84% 8%, var(--surface-secondary) 0, transparent 32%),
    radial-gradient(circle at 48% 76%, var(--surface-accent) 0, transparent 38%),
    var(--bg-gradient);
}

body[data-theme="core"]::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.38;
  background-image:
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
    linear-gradient(0deg, var(--grid-line) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: linear-gradient(to bottom, var(--mask-solid) 0%, transparent 82%);
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

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

:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 3px;
}

.wrap {
  width: min(calc(100% - 2rem), var(--max));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  background: var(--chrome-surface);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--chrome-shadow);
  backdrop-filter: blur(18px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  min-height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--text-dark);
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  position: relative;
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background:
    radial-gradient(circle at 32% 32%, var(--white) 0 12%, transparent 13%),
    radial-gradient(circle at 68% 34%, var(--white) 0 12%, transparent 13%),
    linear-gradient(135deg, var(--primary-light), var(--secondary-light) 58%, var(--gold-light));
  border: 1px solid var(--border-strong);
  box-shadow: 0 8px 22px var(--shadow-color);
}

.brand-mark::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 9px;
  width: 14px;
  height: 7px;
  border-bottom: 3px solid var(--primary-dark);
  border-radius: 0 0 var(--radius-full) var(--radius-full);
  transform: translateX(-50%);
}

.navlinks {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--text-medium);
  font-size: 0.94rem;
  font-weight: 700;
}

.navlinks a,
.toc a,
.footer a {
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}

.navlinks a {
  padding: 0.45rem 0.62rem;
}

.navlinks a:hover,
.toc a:hover,
.footer a:hover {
  color: var(--primary-dark);
  background: var(--surface-primary);
}

.button,
.ghost-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 44px;
  border: 1px solid transparent;
  border-radius: var(--radius-full);
  padding: 0.75rem 1.05rem;
  font-weight: 800;
  line-height: 1.1;
  text-align: center;
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
}

.button {
  background: linear-gradient(135deg, var(--primary-dark), var(--accent-dark));
  color: var(--white);
  box-shadow: var(--button-shadow);
}

.button:hover {
  transform: translateY(-1px);
  box-shadow: var(--button-shadow-hover);
}

.button:active,
.ghost-btn:active,
.tab:active {
  transform: translateY(1px) scale(0.99);
}

.ghost-btn {
  background: var(--card-bg-soft);
  color: var(--primary-dark);
  border-color: var(--border-strong);
  box-shadow: var(--ghost-shadow);
}

.ghost-btn:hover {
  background: var(--surface-primary);
  border-color: var(--primary);
  transform: translateY(-1px);
}

.mobile-menu {
  display: none;
}

.hero {
  padding: clamp(3rem, 7vw, 5.6rem) 0 var(--space-2xl);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: clamp(1.2rem, 4vw, 2.4rem);
  align-items: center;
}

.hero-grid > *,
.section-head > * {
  min-width: 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  max-width: 100%;
  padding: 0.45rem 0.86rem;
  border-radius: var(--radius-full);
  background: var(--surface-secondary);
  color: var(--secondary-dark);
  border: 1px solid var(--secondary-border-soft);
  font-size: 0.86rem;
  font-weight: 800;
  overflow-wrap: anywhere;
}

.hero h1,
.article h1 {
  margin: 1rem 0;
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 7vw, 4.9rem);
  line-height: 1.02;
  letter-spacing: 0;
  text-wrap: balance;
}

.hero p {
  max-width: 42rem;
  color: var(--text-medium);
  font-size: 1.13rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.hero-card,
.card,
.toolbox,
.topic-surface {
  background: var(--card-bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-soft);
}

.hero-card {
  position: relative;
  overflow: hidden;
  padding: var(--space-lg);
}

.hero-card::before {
  content: "";
  position: absolute;
  inset: 1rem 1rem auto auto;
  width: 7rem;
  height: 7rem;
  border-radius: 35% 65% 54% 46%;
  background: linear-gradient(135deg, var(--primary-light), var(--secondary-light));
  opacity: 0.62;
}

.stat-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-sm);
}

.stat {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  box-shadow: var(--card-shadow-subtle);
}

.stat b {
  display: block;
  color: var(--primary-dark);
  font-family: var(--font-display);
  font-size: 1.58rem;
  font-variant-numeric: tabular-nums;
  line-height: 1.05;
}

.stat span {
  display: block;
  margin-top: 0.2rem;
  color: var(--text-light);
  font-size: 0.86rem;
}

.section {
  padding: clamp(2rem, 5vw, 3.5rem) 0;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.section h1,
.section h2,
.article h2,
.toolbox h2,
.card h2 {
  margin: 0;
  color: var(--text-dark);
  font-family: var(--font-display);
  letter-spacing: 0;
  line-height: 1.12;
  text-wrap: balance;
}

.section h1,
.section h2 {
  font-size: clamp(1.9rem, 4vw, 2.9rem);
}

.section-head p {
  max-width: 42rem;
  margin: 0.5rem 0 0;
  color: var(--text-medium);
}

.grid {
  display: grid;
  gap: var(--space-md);
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  position: relative;
  padding: var(--space-lg);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.card h3 {
  margin: 0;
  color: var(--text-dark);
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: 0;
  line-height: 1.18;
  text-wrap: balance;
}

.card p:last-child {
  margin-bottom: 0;
}

.sprite-card {
  overflow: hidden;
}

.sprite-card::before {
  content: "";
  position: absolute;
  right: -2.1rem;
  top: -2.1rem;
  width: 7.5rem;
  height: 7.5rem;
  border-radius: 38% 62% 54% 46%;
  background: linear-gradient(135deg, var(--surface-primary), var(--surface-secondary));
}

.sprite-icon {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3.6rem;
  height: 3.6rem;
  border-radius: 1.15rem;
  background: linear-gradient(135deg, var(--primary-light), var(--secondary-light));
  border: 1px solid var(--border-strong);
  color: var(--primary-dark);
  font-size: 1.75rem;
  box-shadow: var(--sprite-shadow);
}

.sprite-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.pill {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  max-width: 100%;
  border-radius: var(--radius-full);
  padding: 0.38rem 0.68rem;
  background: var(--surface-secondary);
  color: var(--secondary-dark);
  border: 1px solid var(--secondary-border-subtle);
  font-size: 0.78rem;
  font-weight: 800;
  line-height: 1.1;
}

.pill.gold {
  background: var(--surface-gold);
  color: var(--gold-dark);
  border-color: var(--gold-border-subtle);
}

.pill.s {
  background: var(--surface-success);
  color: var(--success-dark);
  border-color: var(--success-border-soft);
}

.pill.danger {
  background: var(--surface-danger);
  color: var(--danger);
  border-color: var(--danger-border-soft);
}

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

.tiny {
  color: var(--text-light);
  font-size: 0.8rem;
}

.toolbox {
  padding: var(--space-lg);
  background:
    linear-gradient(135deg, var(--toolbox-overlay-start), var(--toolbox-overlay-end)),
    var(--card-bg);
}

.form-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto;
  gap: var(--space-sm);
  align-items: end;
}

.field label {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--text-medium);
  font-size: 0.84rem;
  font-weight: 800;
}

.field input,
.field select,
.field textarea,
.searchbar input {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--border-strong);
  background: var(--card-bg);
  color: var(--text-dark);
  border-radius: var(--radius-md);
  padding: 0.75rem 0.85rem;
  outline: none;
  box-shadow: inset 0 1px 0 var(--input-inset-highlight);
}

.field input:focus,
.field select:focus,
.field textarea:focus,
.searchbar input:focus {
  border-color: var(--focus-ring);
  box-shadow: var(--focus-glow);
}

.result {
  margin-top: var(--space-sm);
  padding: var(--space-md);
  border-radius: var(--radius-lg);
  background: var(--card-bg);
  border: 1px solid var(--border);
  box-shadow: var(--result-shadow);
}

.progress {
  height: 0.7rem;
  margin-top: 0.7rem;
  overflow: hidden;
  background: var(--surface-accent);
  border-radius: var(--radius-full);
}

.progress span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--primary-dark), var(--secondary-dark), var(--gold-dark));
  border-radius: inherit;
  transition: width 350ms ease;
}

.table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--card-bg);
}

.table th,
.table td {
  padding: 0.82rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.table th {
  background: linear-gradient(135deg, var(--primary-light), var(--secondary-light));
  color: var(--text-dark);
  font-size: 0.78rem;
  font-weight: 800;
}

.table tr:hover td {
  background: var(--bg-warm);
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: var(--space-sm);
}

.tab {
  min-height: 40px;
  border: 1px solid var(--border-strong);
  background: var(--card-bg-soft);
  color: var(--text-medium);
  border-radius: var(--radius-full);
  padding: 0.55rem 0.82rem;
  cursor: pointer;
  font-weight: 800;
  transition: transform var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
}

.tab:hover {
  background: var(--surface-secondary);
}

.tab.active {
  background: var(--surface-primary);
  color: var(--primary-dark);
  border-color: var(--primary);
}

.check-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: 0.62rem;
  padding: 0.82rem;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.check-item input {
  width: 1.25rem;
  height: 1.25rem;
  accent-color: var(--primary-dark);
}

.route-step {
  display: flex;
  gap: 0.66rem;
  margin: 0.58rem 0;
}

.route-step b {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  width: 1.8rem;
  height: 1.8rem;
  border-radius: var(--radius-full);
  background: var(--surface-secondary);
  color: var(--secondary-dark);
  border: 1px solid var(--secondary-border-subtle);
  font-size: 0.78rem;
}

.event-card {
  display: grid;
  grid-template-columns: 6.2rem minmax(0, 1fr);
  gap: var(--space-sm);
  align-items: start;
}

.daybox {
  padding: var(--space-sm);
  text-align: center;
  background: var(--surface-gold);
  border: 1px solid var(--gold-border-subtle);
  border-radius: var(--radius-lg);
}

.daybox b {
  display: block;
  color: var(--gold-dark);
  font-family: var(--font-display);
  font-size: 1.05rem;
}

.searchbar {
  display: flex;
  flex: 0 1 28rem;
  gap: var(--space-sm);
  min-width: min(100%, 25rem);
  margin: var(--space-md) 0;
}

.notice {
  padding: 0.9rem 1rem;
  color: var(--gold-dark);
  background: var(--surface-gold);
  border: 1px solid var(--gold-border-soft);
  border-radius: var(--radius-lg);
}

.footer {
  margin-top: var(--space-xl);
  padding: var(--space-2xl) 0 var(--space-3xl);
  color: var(--text-medium);
  background: var(--footer-surface);
  border-top: 1px solid var(--border);
  font-size: 0.92rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.25fr repeat(3, minmax(0, 1fr));
  gap: var(--space-lg);
}

.footer a {
  display: block;
  width: fit-content;
  margin: 0.35rem 0;
  color: var(--text-medium);
  padding: 0.1rem 0.25rem;
}

.article {
  max-width: 54rem;
}

.article,
.page-grid > * {
  min-width: 0;
}

.article h1 {
  font-size: clamp(2.25rem, 5.8vw, 4rem);
}

.article h2 {
  margin-top: var(--space-xl);
  font-size: clamp(1.45rem, 3vw, 2rem);
}

.article p,
.article li,
.notice,
.card,
.stat {
  overflow-wrap: break-word;
}

.article p,
.article li {
  color: var(--text-medium);
}

.article strong,
.footer b,
.toc b {
  color: var(--text-dark);
}

.toc {
  position: sticky;
  top: 92px;
}

.toc a {
  display: block;
  color: var(--text-medium);
  padding: 0.4rem 0.5rem;
}

.page-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: var(--space-lg);
  align-items: start;
}

.language-switch {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: var(--space-md);
}

.lang-card {
  font-weight: 800;
}

.ad-placeholder {
  margin-top: var(--space-md);
  padding: var(--space-md);
  text-align: center;
  color: var(--text-light);
  background: var(--card-bg-muted);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-lg);
}

.noindex-widget {
  contain: content;
}

.kbd {
  padding: 0.12rem 0.38rem;
  font-family: var(--font-mono);
  font-size: 0.86em;
  background: var(--surface-accent);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.print-only {
  display: none;
}

@media (max-width: 900px) {
  .hero-grid,
  .grid-3,
  .grid-2,
  .page-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .navlinks {
    display: none;
  }

  .mobile-menu {
    display: inline-flex;
  }

  .section-head {
    display: block;
  }

  .hero {
    padding-top: var(--space-2xl);
  }

  .event-card {
    grid-template-columns: 1fr;
  }

  .toc {
    position: static;
  }
}

@media (max-width: 560px) {
  .wrap {
    width: min(calc(100% - 1.2rem), var(--max));
  }

  .nav {
    min-height: 64px;
    gap: var(--space-sm);
  }

  .brand {
    max-width: 62%;
  }

  .brand span:last-child {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .hero h1,
  .article h1 {
    font-size: clamp(2.05rem, 14vw, 2.7rem);
    line-height: 1.08;
  }

  .hero p {
    font-size: 1rem;
  }

  .hero-actions .button,
  .hero-actions .ghost-btn,
  .searchbar,
  .searchbar .ghost-btn {
    width: 100%;
  }

  .searchbar {
    flex-direction: column;
    min-width: 0;
  }

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

  .card,
  .hero-card,
  .toolbox {
    padding: var(--space-md);
    border-radius: var(--radius-lg);
  }

  .button,
  .ghost-btn {
    max-width: 100%;
    white-space: normal;
  }

  .table {
    font-size: 0.86rem;
  }
}

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