/* Seed site menu (2 Nov 2026). One header for every page: homepage, apps, vault, guides, legal and the rest.
   Self-contained: its colours are set here so it looks the same whatever stylesheet the page loads.
   Motion follows design.md: 140ms feedback, 220ms panels, nothing under reduced motion. */

.sn {
  --sn-ink: #101A1A; --sn-raised: #16211F; --sn-card: #1C2926; --sn-line: rgb(246 244 239 / .09); --sn-line-strong: #354C43;
  --sn-text: #F6F4EF; --sn-muted: #AABDB4; --sn-leaf: #B5CF74; --sn-leaf-hover: #C9DD95;
  --sn-fast: 140ms; --sn-base: 220ms; --sn-ease: cubic-bezier(.2, .7, .2, 1);
  position: sticky; top: 0; z-index: 60; color: var(--sn-text); font: 400 15px/1.4 Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
  border-bottom: 1px solid transparent; transition: border-color var(--sn-base) var(--sn-ease);
}
/* The glass lives on a layer behind the bar: a backdrop-filter on the header itself would trap the phone sheet. */
.sn::before { content: ""; position: absolute; inset: 0; z-index: -1; background: color-mix(in srgb, var(--sn-ink) 86%, transparent);
  -webkit-backdrop-filter: saturate(1.4) blur(16px); backdrop-filter: saturate(1.4) blur(16px); }
.sn.is-scrolled, .sn.is-open { border-bottom-color: var(--sn-line); }
.sn.sn-static { position: relative; }
.sn *, .sn *::before, .sn *::after { box-sizing: border-box; }
.sn p, .sn ul { margin: 0; padding: 0; }
.sn ul { list-style: none; }
.sn a { color: inherit; text-decoration: none; }
.sn svg { fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.sn :focus-visible { outline: 3px solid var(--sn-leaf); outline-offset: 3px; border-radius: 8px; }

.sn-inner { position: relative; display: flex; align-items: center; gap: 28px; width: min(100% - 32px, 1200px); min-height: 64px; margin-inline: auto; }
.sn-brand { display: inline-flex; align-items: center; gap: 10px; flex: none; }
.sn-brand img { width: 36px; height: 36px; border-radius: 9px; box-shadow: 0 0 0 1px var(--sn-line-strong); }
.sn-brand span { font: 500 22px/1 "Space Grotesk", Inter, sans-serif; letter-spacing: -0.01em; }

/* Top-level items */
.sn-nav { display: flex; align-items: center; gap: 2px; margin-right: auto; }
.sn-menu > summary, .sn .sn-link { display: inline-flex; align-items: center; gap: 6px; min-height: 40px; padding: 0 12px; border-radius: 10px; color: var(--sn-muted); font-weight: 500; font-size: 14px; cursor: pointer; list-style: none; user-select: none;
  transition: color var(--sn-fast) var(--sn-ease), background var(--sn-fast) var(--sn-ease); }
.sn-menu > summary::-webkit-details-marker { display: none; }
.sn-menu > summary:hover, .sn-link:hover, .sn-menu[open] > summary { color: var(--sn-text); background: rgb(246 244 239 / .06); }
/* The section you are in: brighter text and a thin leaf underline (founder choice A, 2 Nov 2026). */
.sn-link[aria-current="page"], .sn-menu > summary[data-current] { position: relative; color: var(--sn-text); }
.sn-link[aria-current="page"]::after, .sn-menu > summary[data-current]::after { content: ""; position: absolute; left: 12px; bottom: 5px; height: 1.5px; border-radius: 1px; background: var(--sn-leaf); opacity: .85; }
.sn-link[aria-current="page"]::after { right: 12px; }
.sn-menu > summary[data-current]::after { right: 30px; } /* under the word only, not the chevron */
.sn-chev { width: 12px; height: 12px; stroke-width: 1.8; transition: transform var(--sn-base) var(--sn-ease); }
.sn-menu[open] .sn-chev { transform: rotate(180deg); }

.sn-actions { display: flex; align-items: center; gap: 8px; flex: none; }
.sn .sn-login { padding: 0 12px; min-height: 40px; display: inline-flex; align-items: center; color: var(--sn-muted); font-weight: 500; font-size: 14px; border-radius: 10px; transition: color var(--sn-fast) var(--sn-ease); }
.sn .sn-login:hover { color: var(--sn-text); }
.sn-cta { display: inline-flex; align-items: center; justify-content: center; min-height: 40px; padding: 0 18px; border-radius: 10px; background: var(--sn-leaf); color: var(--sn-ink) !important; font-weight: 600; font-size: 14px; white-space: nowrap;
  transition: background var(--sn-fast) var(--sn-ease), transform var(--sn-fast) var(--sn-ease); }
.sn-cta:hover { background: var(--sn-leaf-hover); }
.sn-cta:active { transform: translateY(1px); }

/* Panels */
.sn-panel { position: absolute; top: calc(100% + 8px); z-index: 2; padding: 12px; border: 1px solid var(--sn-line-strong); border-radius: 20px; background: var(--sn-raised); color: var(--sn-text);
  box-shadow: 0 30px 80px -24px rgb(0 0 0 / .7), 0 0 0 1px rgb(0 0 0 / .2); }
.sn-menu[open] .sn-panel { animation: sn-in var(--sn-base) var(--sn-ease) both; }
@keyframes sn-in { from { opacity: 0; transform: translateY(-6px); } }
.sn-eyebrow { margin: 0 0 6px; padding: 0 12px; font: 400 11px/1.4 "IBM Plex Mono", ui-monospace, monospace; letter-spacing: .02em; color: var(--sn-muted); }

.sn-apps { left: 0; right: 0; display: grid; grid-template-columns: minmax(0, 3fr) minmax(240px, 1fr); gap: 12px; }
.sn-cols { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 4px; padding: 12px 4px 4px; }
.sn-col .sn-eyebrow:not(:first-child) { margin-top: 18px; }
.sn-app, .sn-guide { display: flex; align-items: center; gap: 12px; padding: 9px 12px; border-radius: 12px; transition: background var(--sn-fast) var(--sn-ease); }
.sn-app:hover, .sn-app:focus-visible, .sn-guide:hover, .sn-guide:focus-visible { background: rgb(246 244 239 / .06); }
.sn-app img { flex: none; width: 40px; height: 40px; border-radius: 10px; box-shadow: 0 0 0 1px var(--sn-line); transition: transform var(--sn-fast) var(--sn-ease); }
.sn-app:hover img { transform: translateY(-1px); }
.sn-app b, .sn-guide b { display: block; font-weight: 500; font-size: 14px; color: var(--sn-text); }
.sn-app small, .sn-guide small { display: block; margin-top: 1px; font-size: 13px; color: var(--sn-muted); }
.sn-app[aria-current="page"] b, .sn-guide[aria-current="page"] b { color: var(--sn-leaf); }

.sn-feature { display: flex; flex-direction: column; gap: 8px; padding: 22px; border-radius: 14px;
  background: radial-gradient(90% 70% at 85% 0%, color-mix(in srgb, var(--sn-leaf) 22%, transparent), transparent 70%), var(--sn-card); border: 1px solid var(--sn-line); }
.sn-feature img { width: 56px; height: 56px; border-radius: 14px; margin-bottom: 10px; box-shadow: 0 0 0 1px var(--sn-line-strong), 0 14px 30px -14px rgb(0 0 0 / .8); }
.sn-feature .sn-eyebrow { padding: 0; margin: 0; }
.sn-feature-title { font: 500 22px/1.15 "Space Grotesk", Inter, sans-serif; letter-spacing: -0.02em; }
.sn-feature-text { color: var(--sn-muted); font-size: 14px; }
.sn-more { display: inline-flex; align-items: center; gap: 6px; margin-top: auto; padding-top: 10px; color: var(--sn-leaf) !important; font-weight: 500; font-size: 14px; }
.sn-more svg { width: 16px; height: 16px; transition: transform var(--sn-fast) var(--sn-ease); }
.sn-more:hover svg { transform: translateX(3px); }

.sn-menu-guides { position: relative; }
.sn-guides { left: -12px; width: 620px; display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 12px; }
.sn-guide-list { display: grid; gap: 2px; padding: 4px; }
.sn-gicon { flex: none; display: grid; place-items: center; width: 40px; height: 40px; border-radius: 10px; background: var(--sn-card); border: 1px solid var(--sn-line); color: var(--sn-leaf); }
.sn-gicon svg { width: 20px; height: 20px; }
.sn-popular { display: flex; flex-direction: column; padding: 18px; border-radius: 14px; background: var(--sn-card); border: 1px solid var(--sn-line); }
.sn-popular .sn-eyebrow { padding: 0; margin-bottom: 12px; }
.sn-popular ul { display: flex; flex-wrap: wrap; gap: 6px; }
.sn-popular li a { display: inline-flex; padding: 6px 11px; border-radius: 999px; border: 1px solid var(--sn-line-strong); font-size: 13px; color: var(--sn-text); transition: border-color var(--sn-fast) var(--sn-ease), color var(--sn-fast) var(--sn-ease); }
.sn-popular li a:hover { border-color: var(--sn-leaf); color: var(--sn-leaf); }

/* Burger and phone sheet */
.sn-burger { display: none; position: relative; width: 44px; height: 44px; margin-right: -8px; border: 0; border-radius: 10px; background: none; color: var(--sn-text); cursor: pointer; }
.sn-burger span { position: absolute; left: 13px; width: 18px; height: 1.5px; background: currentColor; transition: transform var(--sn-base) var(--sn-ease); }
.sn-burger span:first-child { top: 18px; } .sn-burger span:last-child { top: 25px; }
.sn-burger[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
.sn-burger[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
.sn-sheet { position: fixed; inset: 64px 0 0; overflow-y: auto; overscroll-behavior: contain; background: var(--sn-ink); border-top: 1px solid var(--sn-line); }
.sn-sheet[hidden] { display: none; }
.sn-sheet:not([hidden]) { animation: sn-in var(--sn-base) var(--sn-ease) both; }
.sn-sheet-inner { width: min(100% - 32px, 640px); margin: 0 auto; padding: 24px 0 40px; }
.sn-sheet .sn-eyebrow { padding: 0; margin: 8px 0 14px; }
.sn-sheet-apps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px 8px; }
.sn-sheet-apps a { display: grid; justify-items: center; gap: 7px; font-size: 12px; color: var(--sn-muted); text-align: center; }
.sn-sheet-apps img { width: 52px; height: 52px; border-radius: 13px; box-shadow: 0 0 0 1px var(--sn-line); }
.sn-sheet .sn-more { margin: 18px 0 26px; padding: 0; }
.sn-sheet-links { display: grid; border-top: 1px solid var(--sn-line); }
.sn-sheet-links a { padding: 15px 2px; border-bottom: 1px solid var(--sn-line); font-size: 17px; font-weight: 500; }
.sn-sheet-actions { display: grid; gap: 10px; margin-top: 28px; }
.sn-sheet-actions .sn-cta, .sn-sheet-actions .sn-login { justify-content: center; min-height: 52px; font-size: 16px; border-radius: 12px; }
.sn-sheet-actions .sn-login { border: 1px solid var(--sn-line-strong); color: var(--sn-text); }
html.sn-locked { overflow: hidden; }

@media (max-width: 1080px) {
  .sn-apps { grid-template-columns: 1fr; }
  .sn-feature { display: none; }
}
@media (max-width: 920px) {
  .sn-nav, .sn-actions .sn-login { display: none; }
  .sn-inner { justify-content: space-between; }
  .sn-burger { display: block; }
}
@media (max-width: 380px) {
  .sn-actions .sn-cta { padding: 0 12px; font-size: 13px; }
  .sn-sheet-apps { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (prefers-reduced-motion: reduce) {
  .sn *, .sn { transition: none !important; animation: none !important; }
}