:root {
  --page-bg: #d7dce3;
  --page-bg-accent: #c8d2dd;
  --surface: #edf1f5;
  --surface-strong: #dde5ee;
  --surface-soft: #e6ebf1;
  --border: #b2bdca;
  --border-strong: #6d8fb8;
  --text: #17212b;
  --text-soft: #334155;
  --text-muted: #526274;
  --accent: #315f9b;
  --accent-strong: #234a7a;
  --accent-teal: #2f7a78;
  --accent-wine: #8b4d63;
  --accent-amber: #a56a1f;
  --shadow: 0 10px 20px rgba(30, 41, 59, 0.10);
  --content-width: 1180px;
  --font-main: 'Helvetica Neue', 'Segoe UI', sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 28px 20px 44px;
  background:
    linear-gradient(180deg, rgba(200, 210, 221, 0.94), rgba(215, 220, 227, 0.99) 180px),
    var(--page-bg);
  color: var(--text);
  font-family: var(--font-main);
  line-height: 1.85;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.page-shell {
  width: min(100%, var(--content-width));
  margin: 0 auto;
}

.page-topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 20px;
}

.home-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border: 1px solid var(--border-strong);
  background: #e9eef4;
  color: var(--accent-strong);
  font-weight: 700;
  box-shadow: 0 5px 12px rgba(30, 41, 59, 0.08);
}

.page-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 8px 15px;
  border: 1px solid var(--border);
  background: rgba(232, 237, 243, 0.96);
  color: var(--text-soft);
  font-size: 0.95rem;
  font-weight: 700;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.page-nav a:hover,
.page-nav a.is-current {
  text-decoration: none;
  color: var(--accent-strong);
  border-color: var(--border-strong);
  background: #dbe3ed;
  transform: translateY(-1px);
}

.page-hero {
  position: relative;
  margin-bottom: 20px;
  padding: 30px 34px;
  border: 1px solid var(--border);
  background:
    linear-gradient(135deg, rgba(212, 221, 231, 0.98), rgba(236, 240, 245, 0.98));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 8px;
  background: linear-gradient(180deg, #6d8fb8, #315f9b);
}

.page-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  color: var(--accent-teal);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.page-kicker::before {
  content: "";
  width: 14px;
  height: 2px;
  background: currentColor;
}

.page-hero h1 {
  margin: 0;
  color: #243b53;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.12;
}

.page-lead {
  margin: 14px 0 0;
  max-width: 820px;
  color: var(--text-soft);
  font-size: 1rem;
}

.section-block {
  margin-bottom: 18px;
  padding: 24px 26px;
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow);
  border-top: 4px solid var(--accent);
}

.section-block h2 {
  margin: 0 0 14px;
  color: #23364a;
  font-size: 1.4rem;
  line-height: 1.3;
}

.section-block h3 {
  margin: 22px 0 10px;
  color: var(--accent-strong);
  font-size: 1.05rem;
}

.section-block p,
.section-block li {
  color: var(--text-soft);
}

.section-block ul {
  margin: 10px 0 0;
  padding-left: 1.2em;
}

.section-note {
  margin-top: 14px;
  padding: 12px 14px;
  border-left: 4px solid var(--accent-teal);
  background: #dde6e7;
  color: #234b4a;
  font-weight: 600;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.howto-card {
  padding: 18px 20px;
  border: 1px solid var(--border);
  background:
    linear-gradient(180deg, rgba(228, 234, 240, 0.98), rgba(237, 241, 245, 0.98));
  box-shadow: var(--shadow);
  border-top: 4px solid var(--accent);
}

.howto-card-wide {
  grid-column: 1 / -1;
  background:
    linear-gradient(135deg, rgba(214, 223, 233, 0.98), rgba(237, 241, 245, 0.98));
  border-color: var(--border-strong);
  border-top-color: var(--accent-wine);
}

.howto-card h2,
.howto-card h3 {
  margin: 0 0 10px;
  color: #243b53;
  font-size: 1.08rem;
}

.howto-card p {
  margin: 8px 0;
  color: var(--text-soft);
}

.info-list {
  display: grid;
  gap: 12px;
}

.info-item {
  padding: 16px 18px;
  border: 1px solid var(--border);
  background: var(--surface-soft);
  border-left: 4px solid var(--accent-teal);
}

.info-item strong {
  display: block;
  margin-bottom: 6px;
  color: #214e5a;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: start;
  gap: 18px;
}
.contact-card {
  min-width: 0;
  padding: 20px;
  border: 1px solid var(--border);
  border-top: 4px solid var(--text);
  border-radius: 12px;
  background: var(--surface-soft);
}
.contact-card-discord { border-top-color: #5865f2; }
.contact-card h3 { margin: 0; font-size: 1rem; }
.contact-handle { margin: 8px 0 16px; font-size: 1.25rem; font-weight: 700; overflow-wrap: anywhere; }
.contact-button {
  padding: 10px 16px;
  border: 0;
  border-radius: 8px;
  background: #4752c4;
  color: #fff;
  font: inherit;
  cursor: pointer;
}
.contact-button:hover { background: #3c45a5; }
.contact-button:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
.contact-button:disabled { opacity: .6; cursor: wait; }
.contact-copy-field { width: 100%; margin-top: 12px; padding: 10px; color: var(--text); background: var(--surface); border: 1px solid var(--border); font: inherit; }
.contact-timeline { max-width: 100%; overflow: hidden; border-radius: 8px; }
.copy-toast {
  position: fixed;
  bottom: calc(24px + env(safe-area-inset-bottom, 0px));
  left: 50%;
  width: max-content;
  max-width: calc(100vw - 32px);
  text-align: center;
  z-index: 2147483647;
  pointer-events: none;
  background: rgba(33,33,33,.96);
  color: #fff;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: .9rem;
  line-height: 1.2;
  box-shadow: 0 6px 18px rgba(0,0,0,.3);
  opacity: 0;
  transform: translate(-50%, 6px);
  transition: transform .2s ease;
}
.copy-toast.show { opacity: 1; transform: translate(-50%, 0); }

.notice-list {
  display: grid;
  gap: 14px;
}

.notice-item {
  border: 1px solid var(--border);
  background: #eceff3;
  padding: 18px 20px;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--accent);
}

.notice-item.is-important {
  border-color: #c49555;
  border-left-color: var(--accent-amber);
  background: linear-gradient(180deg, #ece4d8, #eceff3);
}

.notice-title {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 8px;
  color: #243b53;
  font-size: 1.08rem;
}
.notice-item[id] { scroll-margin-top: 1.5rem; }
.notice-item:target { outline: 2px solid #b9853c; outline-offset: 4px; }

.notice-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  padding: 4px 10px;
  border: 1px solid #b9853c;
  background: #e7d3af;
  color: #6f4311;
  font-size: 0.82rem;
  font-weight: 800;
}

.notice-body {
  color: var(--text-soft);
}

.notice-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-top: 12px;
  color: var(--text-muted);
  font-size: 0.88rem;
}

.site-footer {
  margin-top: 28px;
  padding: 20px 8px 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.section-block:nth-of-type(3n) {
  border-top-color: var(--accent-teal);
}

.section-block:nth-of-type(3n + 2) {
  border-top-color: var(--accent-wine);
}

.howto-card:nth-child(4n) {
  border-top-color: var(--accent-teal);
}

.howto-card:nth-child(4n + 2) {
  border-top-color: var(--accent-wine);
}

.howto-card:nth-child(4n + 3) {
  border-top-color: var(--accent-amber);
}

.catalog-table { width: 100%; border-collapse: collapse; margin: 1rem 0; }
.catalog-table th, .catalog-table td { padding: .75rem; text-align: left; border-bottom: 1px solid var(--line, #cad5e2); overflow-wrap: anywhere; }
.catalog-table th { background: #e3ebf3; }
.catalog-table td:first-child { font-weight: 600; }
.example-pattern { overflow-wrap: anywhere; }
code { font-family: ui-monospace, monospace; white-space: pre-wrap; }
a:focus-visible, summary:focus-visible { outline: 3px solid #357bb8; outline-offset: 4px; }

@media (max-width: 768px) {
  body {
    padding: 20px 14px 34px;
  }

  .page-topbar {
    align-items: stretch;
  }

  .page-nav {
    width: 100%;
  }

  .page-nav a {
    flex: 1 1 calc(33.333% - 10px);
    padding: 8px;
    font-size: .82rem;
  }

  .page-hero,
  .section-block,
  .howto-card {
    padding: 18px 16px;
  }

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

  .howto-card-wide {
    grid-column: auto;
  }
}