/* ============================================================
   My Neocities Site — stylesheet
   Plain CSS. No build step. Edit colors in :root below.
   ============================================================ */

:root {
  --background: #ffffff;
  --foreground: #0b1220;
  --card: #ffffff;
  --primary: #1e293b;
  --primary-foreground: #f8fafc;
  --muted: #f1f5f9;
  --muted-foreground: #64748b;
  --accent: #e2e8f0;
  --border: #e2e8f0;
  --radius: 12px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--background);
  color: var(--foreground);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.wrap { width: 100%; max-width: 960px; margin: 0 auto; padding: 0 24px; }
.wrap-narrow { width: 100%; max-width: 760px; margin: 0 auto; padding: 0 24px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(8px);
}
.site-header .wrap {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  text-decoration: none;
}
.brand:hover { color: var(--muted-foreground); }

.site-nav { display: flex; align-items: center; gap: 4px; }
.site-nav a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--muted-foreground);
}
.site-nav a:hover { background: var(--accent); color: var(--foreground); }
.site-nav a.active { background: var(--primary); color: var(--primary-foreground); }
.site-nav svg { width: 16px; height: 16px; }

/* ---------- Main ---------- */
main { flex: 1 1 auto; }

/* ---------- Hero ---------- */
.hero { padding: 96px 0 80px; text-align: center; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(30, 41, 59, 0.08);
  color: var(--primary);
  font-size: 0.875rem;
  font-weight: 500;
}
.badge svg { width: 16px; height: 16px; }

.hero h1 {
  margin: 24px 0 0;
  font-size: clamp(2.25rem, 7vw, 3.75rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.05;
}
.hero h1 .accent { color: var(--muted-foreground); }
.hero p {
  max-width: 34rem;
  margin: 24px auto 0;
  font-size: 1.125rem;
  color: var(--muted-foreground);
}
.hero-actions {
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
}
.btn svg { width: 16px; height: 16px; }
.btn-primary { background: var(--primary); color: var(--primary-foreground); }
.btn-primary:hover { opacity: 0.9; }
.btn-outline { background: var(--card); color: var(--foreground); border-color: var(--border); }
.btn-outline:hover { background: var(--accent); }

/* ---------- Cards ---------- */
.card {
  border: 2px dashed rgba(30, 41, 59, 0.3);
  border-radius: 24px;
  background: var(--card);
  padding: 32px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06);
}
.card h2 { margin: 0; font-size: 1.5rem; font-weight: 700; }
.card p { color: var(--muted-foreground); }

.card-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  background: rgba(30, 41, 59, 0.08);
  color: var(--primary);
  margin-bottom: 16px;
}
.card-icon svg { width: 20px; height: 20px; }

.grid-2 {
  display: grid;
  gap: 24px;
  padding-bottom: 96px;
}
@media (min-width: 768px) {
  .grid-2 { grid-template-columns: 1fr 1fr; }
}

.tile-list { display: grid; gap: 12px; margin-top: 16px; }
.tile {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  border-radius: var(--radius);
  background: var(--muted);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
}
.tile:hover { background: var(--accent); }
.tile svg { width: 16px; height: 16px; }

/* ---------- Inner pages ---------- */
.page { padding: 64px 0; }
.page h1 { margin: 0; font-size: 2.25rem; font-weight: 700; letter-spacing: -0.02em; }
.page .lead { margin-top: 16px; font-size: 1.125rem; color: var(--muted-foreground); }

.title-row { display: flex; align-items: center; gap: 12px; }
.title-row svg { width: 28px; height: 28px; color: var(--primary); }

.panel-grid { display: grid; gap: 24px; margin-top: 32px; }
@media (min-width: 640px) {
  .panel-grid { grid-template-columns: 1fr 1fr; }
}
.panel { background: var(--muted); border-radius: 16px; padding: 20px; }
.panel h2 { margin: 0; font-size: 1rem; font-weight: 600; }
.panel ul { margin: 8px 0 0; padding-left: 20px; font-size: 0.875rem; color: var(--muted-foreground); }
.panel li + li { margin-top: 4px; }

.link-list { list-style: none; margin: 32px 0 0; padding: 0; display: grid; gap: 16px; }
.link-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  border-radius: 16px;
  background: var(--muted);
  text-decoration: none;
}
.link-item:hover { background: var(--accent); }
.link-item .bullet {
  flex: none;
  margin-top: 2px;
  padding: 8px;
  border-radius: 999px;
  background: rgba(30, 41, 59, 0.08);
  color: var(--primary);
  display: inline-flex;
}
.link-item .bullet svg { width: 16px; height: 16px; }
.link-item strong { font-weight: 600; }
.link-item:hover strong { text-decoration: underline; text-underline-offset: 4px; }
.link-item p { margin: 4px 0 0; font-size: 0.875rem; color: var(--muted-foreground); }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--muted);
  padding: 32px 0;
}
.site-footer .wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
@media (min-width: 640px) {
  .site-footer .wrap { flex-direction: row; justify-content: space-between; }
}
.site-footer p { margin: 0; font-size: 0.875rem; color: var(--muted-foreground); }
.footer-links { display: flex; gap: 16px; }
.footer-links a { font-size: 0.875rem; color: var(--muted-foreground); text-decoration: none; }
.footer-links a:hover { color: var(--foreground); }

/* Hide nav labels on very small screens (icons only), like the original. */
@media (max-width: 639px) {
  .site-nav a span { display: none; }
  .site-nav a { padding: 8px 10px; }
}