/* Site header for the hand-published blog pages: copied from tape-q-and-a.css (variables, topbar, site header,

   brand, nav, buttons, price dropdowns). Loaded before blog-static.css. Regenerate if the site header changes. */

:root {
  --bg: #ffffff;
  --surface: #f7f6fa;
  --surface-2: #f0eef5;
  --background: #f7f6fa;
  --background-soft: #f0eef5;
  --line: #e8e7ed;
  --line-2: #dedce6;
  --card: rgba(255,255,255,0.94);
  --card-strong: #f7f6fa;

  --ink: #161320;
  --ink-2: #39354a;
  --muted: #6e6a7c;
  --faint: #9a96a8;

  /* keep --foreground aliases for inner page content compat */
  --foreground: #161320;
  --foreground-soft: #6e6a7c;

  --accent: #5b27d6;
  --accent-press: #4a1fb0;
  --accent-100: #e6dcfb;
  --accent-50: #f2ecfd;
  --accent-tint: #faf8ff;

  /* aliases used in inner page content classes */
  --primary: #5b27d6;
  --primary-ink: #ffffff;
  --secondary: #8a5cf0;
  --signal: oklch(0.69 0.11 70);

  --display: "Space Grotesk", system-ui, sans-serif;
  --sans: "Hanken Grotesk", system-ui, sans-serif;
  --mono: "Space Mono", ui-monospace, monospace;

  --maxw: 1180px;
  --container: 1240px;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 2px rgba(22,19,32,.04), 0 1px 3px rgba(22,19,32,.05);
  --shadow-soft: 0 8px 30px rgba(22,19,32,.08), 0 2px 8px rgba(22,19,32,.04);
  --shadow-md: 0 8px 30px rgba(22,19,32,.08), 0 2px 8px rgba(22,19,32,.04);
  --shadow-hover: 0 24px 60px rgba(40,20,90,.12), 0 6px 18px rgba(22,19,32,.06);
  --shadow-lg: 0 24px 60px rgba(40,20,90,.12), 0 6px 18px rgba(22,19,32,.06);
  --ease: cubic-bezier(.4,0,.2,1);
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 32px; }

/* ============================================================
   Topbar
   ============================================================ */
.topbar {
  background: var(--ink);
  color: #cfcbdb;
  font-size: 13px;
}
.topbar .wrap {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 26px;
  height: 38px;
}
.topbar a { color: #cfcbdb; transition: color .15s var(--ease); white-space: nowrap; flex-shrink: 0; }
.topbar a:hover { color: #fff; }
.topbar .sep { width: 1px; height: 14px; background: rgba(255,255,255,.16); }
/* compat alias */
.topbar-inner { display: contents; }

/* ============================================================
   Site header
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255,255,255,.82);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 74px;
}

/* Brand */
.brand { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.brand .mark {
  width: 40px; height: 40px; border-radius: 9px;
  background: linear-gradient(150deg, var(--accent), #7d4be6);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 14px rgba(91,39,214,.28);
}
.brand .mark svg { display: block; }
.brand .wm { line-height: 1; display: flex; flex-direction: column; gap: 3px; }
.brand .wm .t1 { display: block; font-family: var(--display); font-weight: 700; font-size: 20px; letter-spacing: .02em; color: var(--ink); }
.brand .wm .t2 { display: block; font-family: var(--mono); font-size: 10px; letter-spacing: .34em; color: var(--faint); text-transform: uppercase; }

/* Nav */
.topnav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  align-items: center;
  margin-left: 6px;
}
.topnav a {
  display: flex;
  align-items: center;
  height: 74px;
  padding: 0 15px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-2);
  border-bottom: 2px solid transparent;
  transition: color .15s var(--ease);
  text-decoration: none;
}
.topnav a:hover, .topnav a.current { color: var(--accent); }

.header-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  font-family: var(--sans); font-weight: 600; font-size: 15px;
  height: 46px; padding: 0 22px; border-radius: 10px; border: 1px solid transparent;
  transition: background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease), transform .12s var(--ease);
  white-space: nowrap; text-decoration: none;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-press); }
.btn-sm { height: 38px; padding: 0 16px; font-size: 14px; }



/* Price dropdown nav */
.price-dropdown { position: relative; }
.price-dropdown > a {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0 15px;
  height: 74px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-2);
  transition: color .15s var(--ease);
}
.price-dropdown > a::after {
  content: "";
  width: 0.45rem;
  height: 0.45rem;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: translateY(-0.08rem) rotate(45deg);
}
.price-dropdown > a:hover { color: var(--accent); }
.price-dropdown-menu {
  position: absolute;
  top: calc(100% + 0.55rem);
  right: 0;
  min-width: 16rem;
  display: grid;
  gap: 0.2rem;
  padding: 0.8rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-0.35rem);
  transition: opacity 180ms ease, transform 180ms ease, visibility 180ms ease;
  z-index: 80;
}
.price-dropdown:hover .price-dropdown-menu,
.price-dropdown:focus-within .price-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.price-dropdown-menu a {
  display: block;
  padding: 0.8rem 0.9rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-weight: 600;
  color: var(--ink-2);
  font-size: 14px;
  transition: background .14s ease, color .14s ease;
}
.price-dropdown-menu a:hover { background: var(--accent-50); color: var(--accent); }
.price-dropdown-menu a.current { background: var(--accent); color: #fff; }
.price-dropdown-menu a span {
  display: block;
  font-size: 12px;
  color: var(--faint);
  font-weight: 400;
  margin-top: 1px;
}

@media (max-width: 760px) {
  .wrap { padding: 0 20px; }
  .topnav, .topbar { display: none; }
}