/* Opuss launch site, shared stylesheet. Tokens mirror opuss-docs/design/tokens.json.
   Reference token vars; never hard-code a hex. */
:root {
  --eggshell:#fdfcfa; --eggshell-body:#f0eeea; --paper:#f9f7f4;
  --ink:#2d2823; --soft-brown:#6b6459; --muted:#9a8f82;
  --accent:#a8312a; --accent-deep:#8a2620; --crimson:#b8413a;
  --slate:#6b7f8e; --slate-deep:#4d5f6e; --slate-hover:#7e92a1;
  --warm-border:#e8e4dd; --warm-border-deep:#d8d3c9;
  --r-sm:6px; --r-md:8px; --r-lg:12px;
  --serif:'Bitter',Georgia,'Times New Roman',serif;
  --sans:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
}
* { box-sizing:border-box; }
body { margin:0; background:var(--eggshell-body); color:var(--ink);
       font-family:var(--serif); line-height:1.55; -webkit-font-smoothing:antialiased; }

/* Wordmark (image asset; crimson only on this brand-signal surface) */
.wordmark-svg { width:auto; display:block; }
.wordmark-svg path { fill:currentColor; }

/* Buttons: flat, uppercase, 1.8px tracking, 2px radius, Slate. NEVER a shadow. */
.btn { display:inline-block; font-family:var(--sans); font-size:.8125rem; font-weight:600;
       letter-spacing:1.8px; text-transform:uppercase; padding:.85rem 1.5rem; border:none;
       border-radius:2px; background:var(--slate); color:var(--eggshell); cursor:pointer;
       text-decoration:none; }
.btn:hover { background:var(--slate-hover); }
.btn:active { background:var(--slate-deep); }
/* Crimson modifier for primary brand CTAs (waitlist, Download for Mac). Defined
   after the base so equal-specificity hover/active states win on source order. */
.btn-accent { background:var(--accent); }
.btn-accent:hover { background:var(--accent-deep); }
.btn-accent:active { background:var(--accent-deep); }

/* Footer (shared _site_footer.html) */
.site-footer { text-align:center; color:var(--accent); padding:3.5rem 1.5rem 4rem; background:var(--eggshell-body); }
.footer-mark { display:inline-block; text-decoration:none; line-height:0; color:var(--accent); }
.site-footer .wordmark-svg { height:24px; display:inline-block; }
.studio { font-family:var(--serif); font-style:italic; font-size:12px; color:var(--muted); margin:.75rem 0 0; }
.legal { font-family:var(--sans); font-size:.75rem; margin:1.5rem 0 0; }
.legal a { color:var(--muted); text-decoration:none; } .legal a:hover { color:var(--ink); }
.legal .sep { color:var(--muted); margin:0 .55rem; }
.copyright { font-family:var(--sans); font-size:.6875rem; letter-spacing:.06em; color:var(--muted); margin:1.1rem 0 0; line-height:1.8; }

/* Shared content-page chrome (about / support / privacy / terms / explore) */
.content { max-width:40rem; margin:0 auto; padding:4rem 1.5rem 1rem; }
.content .brand { display:flex; margin:0 0 3rem; }
.content .brand .wordmark { display:flex; color:var(--accent); text-decoration:none; }
.content .brand .wordmark-svg { height:36px; }
.content h1 { font-family:var(--serif); font-weight:400; font-size:2.5rem; margin:0 0 .35rem; line-height:1.1; }
.content .lede { font-family:var(--serif); font-style:italic; font-size:1.25rem; color:var(--soft-brown); margin:0 0 2.5rem; }
.content h2 { font-family:var(--serif); font-weight:600; font-size:1.0625rem; margin:2.25rem 0 .5rem; }
.content p, .content li { font-size:1rem; color:var(--ink); margin:0 0 .9rem; }
.content a { color:var(--accent); }

/* ---- Launch page ---- */
.nav { display:flex; align-items:center; justify-content:space-between; padding:20px 32px; position:relative; z-index:10; }
.nav .brand-mark { display:flex; color:var(--accent); text-decoration:none; }
.nav .brand-mark .wordmark-svg { height:30px; }
.nav-links { display:flex; align-items:center; gap:24px; font-family:var(--sans); }
.nav-links a { color:var(--ink); text-decoration:none; font-size:.85rem; letter-spacing:1px; text-transform:uppercase; }

/* Download dropdown (native <details>) */
.dl-dd { position:relative; }
.dl-dd > summary { list-style:none; cursor:pointer; font-family:var(--sans); color:var(--ink);
  font-size:.85rem; letter-spacing:1px; text-transform:uppercase; display:inline-flex; align-items:center; gap:6px; }
.dl-dd > summary::-webkit-details-marker { display:none; }
.dl-dd > summary .car { color:var(--accent); transition:transform .15s; }
.dl-dd[open] > summary .car { transform:rotate(180deg); }
.dl-menu { position:absolute; right:0; top:140%; background:var(--eggshell); border:1px solid var(--warm-border);
  border-radius:var(--r-md); box-shadow:0 14px 36px rgba(45,40,35,.16); min-width:200px; padding:6px; }
.dl-menu a { display:flex; align-items:center; gap:10px; padding:10px 12px; border-radius:var(--r-sm);
  font-family:var(--sans); font-size:.92rem; color:var(--ink); text-decoration:none; text-transform:none; letter-spacing:0; }
.dl-menu a:hover { background:var(--eggshell-body); }
.dl-menu a small { color:var(--muted); font-size:.72rem; margin-left:auto; }

/* Hero + masonry */
.hero { position:relative; min-height:600px; overflow:hidden; display:flex; align-items:center; justify-content:center; }
/* align-items:flex-start is load-bearing: the default `stretch` would clamp each
   column to the hero's height, so translateY(-50%) (a percentage of the column's
   own box) would resolve against ~564px instead of the column's true content
   height and snap mid-copy every loop. flex-start lets the column be as tall as
   its bricks, so -50% is exactly one copy and the drift loops seamlessly. */
.wall { position:absolute; inset:0; display:flex; align-items:flex-start; gap:14px; padding:18px; opacity:.7; pointer-events:none; }
.wall .col { flex:1; display:flex; flex-direction:column; }
/* Vertical spacing lives on the brick (not a column `gap`) so the two stacked
   copies tile exactly: with a column gap the element is 2*content + 1 gap tall,
   and a -50% drift falls half a gap short of one copy, snapping every loop. */
.brick { background:var(--eggshell); border:1px solid var(--warm-border); border-radius:var(--r-sm); padding:12px 13px; margin-bottom:14px; }
.brick p { font-family:var(--serif); font-size:12.5px; line-height:1.5; margin:0 0 6px; }
.brick .attr { font-family:var(--serif); font-style:italic; font-size:10.5px; color:var(--soft-brown); margin:0; }
/* Each column renders its bricks twice (see landing-launch.html) and drifts up
   by exactly one copy, then loops. The loop is only seamless while a single copy
   is taller than the hero; the curated set is sized so every column clears that.
   Distinct per-column durations plus negative delays keep the five columns out
   of lockstep so the wall never reads as a grid. */
@keyframes drift { from { transform:translateY(0); } to { transform:translateY(-50%); } }
@media (prefers-reduced-motion: no-preference) {
  .wall .col { animation:drift linear infinite; }
  .wall .col:nth-child(1) { animation-duration:26s; animation-delay:-7s; }
  .wall .col:nth-child(2) { animation-duration:32s; animation-delay:-23s; }
  .wall .col:nth-child(3) { animation-duration:22s; animation-delay:-13s; }
  .wall .col:nth-child(4) { animation-duration:28s; animation-delay:-30s; }
  .wall .col:nth-child(5) { animation-duration:20s; animation-delay:-9s; }
}
.veil { position:absolute; inset:0; pointer-events:none;
  background:radial-gradient(ellipse 55% 65% at 50% 45%, var(--eggshell-body) 0%, rgba(240,238,234,.8) 45%, rgba(240,238,234,.35) 100%); }

/* Download card, a READ container: subtle shadow, r-lg */
.dl-card { position:relative; z-index:2; width:400px; max-width:calc(100vw - 32px); background:var(--eggshell); border-radius:var(--r-lg);
  box-shadow:0 24px 60px rgba(45,40,35,.18); padding:30px 28px; text-align:center; }
.dl-card .app-icon { width:72px; height:72px; border-radius:16px; margin:0 auto 14px; display:block; }
.dl-card .wordmark-svg { height:34px; margin:0 auto 6px; color:var(--accent); }
.dl-card .tagline { font-family:var(--serif); font-size:1.1rem; color:var(--ink); margin:0 0 9px; }
.dl-card .blurb { font-family:var(--serif); font-size:.82rem; color:var(--soft-brown); line-height:1.5; margin:0 0 16px; }
.dl-card .badges { position:relative; display:flex; flex-wrap:nowrap; gap:10px; justify-content:center; align-items:center; }
.dl-card .store-badge { height:40px; width:auto; display:block; }
/* The Google Play badge is a disclosure; keep the summary the size of the badge
   so its hit/focus area doesn't span the revealed form, and float the form as a
   popover below the badges so opening it never reflows the badge row. */
.dl-card details.notify { display:inline-flex; }
.dl-card details.notify > summary { display:inline-flex; list-style:none; cursor:pointer; border-radius:2px; }
.dl-card details.notify > summary::-webkit-details-marker { display:none; }
.dl-card .notify-pop { position:absolute; left:50%; transform:translateX(-50%); top:calc(100% + 10px);
  z-index:5; width:330px; max-width:calc(100vw - 56px); text-align:left;
  background:var(--eggshell); border-radius:var(--r-md);
  box-shadow:0 16px 36px rgba(45,40,35,.22); padding:12px; }
.dl-card .notify-form { display:flex; gap:8px; align-items:stretch; }
.dl-card .notify-form input { flex:1 1 auto; min-width:0; font-family:var(--sans); font-size:.85rem; padding:.55rem .7rem;
  border:1px solid var(--warm-border); border-radius:2px; background:var(--eggshell); color:var(--ink); }
/* Keep NOTIFY ME on one line: don't shrink, don't wrap, tighter tracking. */
.dl-card .notify-form .btn { flex:0 0 auto; white-space:nowrap; letter-spacing:1.2px; padding:.6rem 1rem; }
.dl-card .error { font-family:var(--sans); color:var(--crimson); font-size:.8rem; margin:.5rem 0 0; }
.dl-card .notified { font-family:var(--serif); font-style:italic; color:var(--soft-brown); font-size:.85rem; margin:.6rem 0 0; }
/* Waitlist capture (the / holding page reuses this card): stacked input + full
   width CTA, matching the card's centred rhythm. */
.dl-card .wait-form { display:flex; flex-direction:column; gap:8px; text-align:left; }
.dl-card .wait-form input { font-family:var(--sans); font-size:.9rem; padding:.7rem .8rem;
  border:1px solid var(--warm-border); border-radius:2px; background:var(--eggshell); color:var(--ink); }
.dl-card .wait-form input:focus { outline:2px solid var(--accent); outline-offset:1px; border-color:var(--accent); }
.dl-card .wait-form .btn { width:100%; }
.dl-card .card-note { font-family:var(--serif); font-style:italic; font-size:.8rem; color:var(--muted); margin:.7rem 0 0; }
.dl-card .joined { font-family:var(--serif); font-style:italic; font-size:1rem; color:var(--soft-brown); margin:.4rem 0 0; }

/* Bands */
.band { padding:64px 32px; }
.band .inner { max-width:680px; margin:0 auto; }
.band-brown { background:var(--soft-brown); color:var(--eggshell); }
.band .eyebrow { font-family:var(--serif); font-size:.8rem; letter-spacing:2px; text-transform:uppercase; margin:0 0 18px; opacity:.9; }
.band-brown h2 { font-family:var(--serif); font-weight:400; font-size:1.9rem; line-height:1.3; margin:0 0 14px; }
.band-brown p { font-family:var(--serif); font-size:1.05rem; line-height:1.65; margin:0 0 12px; }

.collector { position:relative; min-height:460px; background:#1a1712; color:#f0ece2;
  display:flex; align-items:center; padding:48px 32px; overflow:hidden; }
/* Full-bleed cheshire pinned right so the cat stays whole; a left→right dark
   gradient keeps the copy readable over it. */
.collector .cat { position:absolute; inset:0; width:100%; height:100%; object-fit:cover; object-position:right center; }
.collector::after { content:""; position:absolute; inset:0; pointer-events:none;
  background:linear-gradient(90deg, rgba(20,16,9,.94) 0%, rgba(20,16,9,.78) 36%, rgba(20,16,9,.25) 66%, rgba(20,16,9,0) 100%); }
.collector .inner { position:relative; z-index:1; max-width:460px; }
.collector .eyebrow { font-family:var(--sans); font-size:.72rem; letter-spacing:3px; text-transform:uppercase; color:#cdba78; margin:0 0 16px; }
.collector h2 { font-family:var(--serif); font-weight:400; font-size:2rem; line-height:1.25; margin:0 0 14px; color:#fff; }
.collector p { font-family:var(--serif); font-size:1.05rem; line-height:1.6; color:#d8d2c4; margin:0 0 22px; }

/* FAQ (native accordion) */
.faq { padding:64px 32px; }
.faq .inner { max-width:680px; margin:0 auto; }
.faq h2 { font-family:var(--serif); font-weight:400; font-size:1.7rem; margin:0 0 28px; text-align:center; }
.faq details { border-top:1px solid var(--warm-border); }
.faq details:last-of-type { border-bottom:1px solid var(--warm-border); }
.faq summary { list-style:none; cursor:pointer; font-family:var(--serif); font-size:1.05rem;
  padding:18px 0; display:flex; justify-content:space-between; gap:12px; }
.faq summary::-webkit-details-marker { display:none; }
.faq summary .chev { color:var(--muted); }
.faq details[open] summary .chev { transform:rotate(45deg); }
.faq .answer { font-family:var(--serif); font-size:.95rem; line-height:1.6; color:var(--soft-brown); margin:0 0 18px; }

@media (max-width:680px) {
  .wall { gap:8px; } .wall .col:nth-child(n+4) { display:none; }
  .dl-card { padding:26px 18px; }
}