/* ─────────────────────────────────────────────────────────────────────────────
 * Landing page layout.
 *
 * Colour and type come from theme-vellum.css — Vellum & Vermilion is the
 * product default, so the marketing page has to be the same parchment the user
 * sees the moment they sign in. This file only composes layout on top of those
 * tokens; it must not introduce a palette of its own.
 * ────────────────────────────────────────────────────────────────────────── */

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  /* The sticky header must not cover the heading you just jumped to. */
  scroll-padding-top: 84px;
}

body {
  margin: 0;
  background: var(--ns-bg-1);
  color: var(--ns-fg);
  font-family: var(--ns-font-body);
  font-size: 16px;
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img, video { max-width: 100%; }

a { color: var(--ns-indigo-2); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 800px; }

/* ── Ambient background ─────────────────────────────────────────────────── */
/* Two soft radial washes, fixed so they don't repaint on every scroll frame. */
.bg-glow {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(900px 600px at 15% -10%, rgba(199,154,58,.14), transparent 62%),
    radial-gradient(800px 600px at 90% 5%, rgba(30,75,143,.08), transparent 62%);
}
main, header, footer { position: relative; z-index: 1; }

/* ── Header ─────────────────────────────────────────────────────────────── */
.hdr {
  position: sticky; top: 0; z-index: 50;
  /* Solid parchment: this theme disables backdrop-filter everywhere, so a
     translucent bar would show the page scrolling through it. */
  background: #F4ECD8;
  border-bottom: 1px solid var(--ns-stroke);
}
.hdr-in { display: flex; align-items: center; gap: 20px; height: 66px; }
.brand {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--ns-font-display); font-weight: 700; font-size: 17px;
  letter-spacing: -.02em; color: var(--ns-fg); text-decoration: none;
  white-space: nowrap;
}
.brand:hover { text-decoration: none; }
/* The quill logo, not the old "B" tile. It is a transparent PNG, so it needs
   no plate behind it — a gradient square would only box the artwork in. */
.brand-mark {
  width: 30px; height: 30px; flex-shrink: 0;
  object-fit: contain;
}
.hdr-nav { display: flex; gap: 22px; margin-left: 12px; flex: 1; }
.hdr-nav a { color: var(--ns-fg-2); font-size: 14px; font-weight: 500; }
.hdr-nav a:hover { color: var(--ns-fg); text-decoration: none; }
.hdr-act { display: flex; align-items: center; gap: 10px; }

@media (max-width: 900px) { .hdr-nav { display: none; } }
/* Phones: the language switch and both buttons do not fit beside the brand —
   the bar used to stretch every landing page to ~650 px on a 390 px screen.
   They move to a second row instead. */
@media (max-width: 640px) {
  .hdr-in { flex-wrap: wrap; height: auto; padding: 10px 0; row-gap: 8px; }
  .hdr-act { width: 100%; justify-content: space-between; gap: 8px; }
  .hdr-act .btn { padding: 8px 12px; font-size: 13px; }
}
@media (max-width: 400px) { .hdr-act .btn-ghost { display: none; } }

/* ── Buttons ────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 20px; border-radius: var(--ns-r-pill);
  font-size: 14px; font-weight: 600; font-family: var(--ns-font-body);
  border: 1px solid transparent; cursor: pointer; text-decoration: none;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
  white-space: nowrap;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary {
  background: linear-gradient(180deg, var(--ns-indigo-2), var(--ns-indigo));
  color: var(--accent-fg, #F6EFDC); box-shadow: var(--ns-shadow-cta);
}
.btn-primary:hover { box-shadow: var(--ns-shadow-hover); }
.btn-ghost {
  background: var(--ns-glass); color: var(--ns-fg);
  border-color: var(--ns-glass-3);
}
.btn-ghost:hover { background: var(--ns-glass-2); }
.btn-lg { padding: 14px 28px; font-size: 15.5px; }

/* ── Language switch ────────────────────────────────────────────────────── */
.langs { display: flex; gap: 4px; background: var(--ns-glass); border: 1px solid var(--ns-glass-3);
         border-radius: var(--ns-r-pill); padding: 3px; }
.langs a {
  padding: 5px 11px; border-radius: var(--ns-r-pill); font-size: 12.5px;
  font-weight: 600; color: var(--ns-fg-muted); text-decoration: none;
}
.langs a:hover { color: var(--ns-fg); text-decoration: none; }
.langs a[aria-current="true"] { background: var(--ns-indigo-dim); color: var(--ns-indigo-2); }

/* ── Hero ───────────────────────────────────────────────────────────────── */
.hero { padding: 76px 0 56px; text-align: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 15px; border-radius: var(--ns-r-pill);
  background: var(--ns-indigo-dim); border: 1px solid var(--ns-stroke-2);
  color: var(--ns-indigo-2); font-size: 12.5px; font-weight: 600;
  letter-spacing: .04em; text-transform: uppercase; margin-bottom: 22px;
}
h1 {
  font-family: var(--ns-font-display); font-weight: 600;
  font-size: clamp(34px, 5.6vw, 58px); line-height: 1.12; letter-spacing: -.015em;
  margin: 0 0 20px; color: var(--ns-fg);
}
.hero-sub {
  font-size: clamp(16px, 2vw, 19px); color: var(--ns-fg-2);
  max-width: 760px; margin: 0 auto 30px;
}
.hero-cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero-note { margin-top: 16px; font-size: 13px; color: var(--ns-fg-muted); }

/* ── Sections ───────────────────────────────────────────────────────────── */
section { padding: 64px 0; }
.sec-head { text-align: center; max-width: 760px; margin: 0 auto 44px; }
h2 {
  font-family: var(--ns-font-display); font-weight: 700;
  font-size: clamp(26px, 3.6vw, 38px); line-height: 1.18; letter-spacing: -.03em;
  margin: 0 0 14px; color: var(--ns-fg);
}
h3 {
  font-family: var(--ns-font-display); font-weight: 700; font-size: 19px;
  letter-spacing: -.02em; margin: 0 0 8px; color: var(--ns-fg);
}
.lead { font-size: 17px; color: var(--ns-fg-2); margin: 0; }

/* ── Cards ──────────────────────────────────────────────────────────────── */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 18px; }
.card {
  background: var(--ns-glass); border: 1px solid var(--ns-stroke);
  border-radius: var(--ns-r-lg); padding: 26px 24px;
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  transition: border-color .2s ease, transform .2s ease;
}
.card:hover { border-color: var(--ns-stroke-2); transform: translateY(-2px);
  box-shadow: var(--ns-shadow-card); }
.card p { margin: 0; color: var(--ns-fg-2); font-size: 14.5px; }
.card-ico {
  width: 40px; height: 40px; border-radius: 11px; margin-bottom: 14px;
  display: grid; place-items: center; font-size: 19px;
  background: var(--ns-indigo-dim); border: 1px solid var(--ns-stroke-2);
}

/* ── Video gallery ──────────────────────────────────────────────────────── */
.vids { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 22px; }
.vid {
  background: var(--ns-glass); border: 1px solid var(--ns-stroke);
  border-radius: var(--ns-r-lg); overflow: hidden; display: flex; flex-direction: column;
}
.vid video {
  width: 100%; display: block; aspect-ratio: 16 / 9; background: var(--ns-bg-3);
  object-fit: cover;
}
.vid-body { padding: 18px 20px 20px; flex: 1; display: flex; flex-direction: column; }
.vid h3 { font-size: 16.5px; line-height: 1.35; }
.vid p { margin: 0 0 12px; font-size: 13.5px; color: var(--ns-fg-2); }
.vid-meta {
  display: flex; align-items: center; gap: 10px; margin-top: auto;
  font-size: 12px; color: var(--ns-fg-muted); font-family: var(--ns-font-mono);
}
.vid-chip {
  padding: 2px 9px; border-radius: var(--ns-r-pill);
  background: var(--ns-glass-2); border: 1px solid var(--ns-glass-3);
}
/* Transcripts are collapsed for the reader but present in the HTML for crawlers
   — <details> content is in the DOM and indexable, unlike JS-loaded text. */
.tx { margin-top: 14px; border-top: 1px solid var(--ns-stroke); padding-top: 12px; }
.tx summary {
  cursor: pointer; font-size: 12.5px; font-weight: 600; color: var(--ns-indigo-2);
  list-style: none;
}
.tx summary::-webkit-details-marker { display: none; }
.tx summary::before { content: '▸ '; }
.tx[open] summary::before { content: '▾ '; }
.tx-body {
  margin-top: 10px; max-height: 240px; overflow-y: auto;
  font-size: 13px; line-height: 1.7; color: var(--ns-fg-2);
}
.tx-body p { margin: 0 0 8px; font-size: 13px; }

/* ── Comparison rows ────────────────────────────────────────────────────── */
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 720px) { .compare { grid-template-columns: 1fr; } }
.compare .card ul { margin: 0; padding-left: 20px; color: var(--ns-fg-2); font-size: 14.5px; }
.compare .card li { margin-bottom: 7px; }
.bad { border-color: rgba(255,69,58,.20); }
.bad h3 { color: #FF7A70; }
.good { border-color: rgba(48,209,88,.22); }
.good h3 { color: #4ADE80; }

/* ── FAQ ────────────────────────────────────────────────────────────────── */
.faq { display: grid; gap: 12px; max-width: 860px; margin: 0 auto; }
.faq details {
  background: var(--ns-glass); border: 1px solid var(--ns-stroke);
  border-radius: var(--ns-r-md); padding: 16px 20px;
}
.faq summary {
  cursor: pointer; font-weight: 600; font-size: 15.5px; color: var(--ns-fg);
  list-style: none; font-family: var(--ns-font-display);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; float: right; color: var(--ns-indigo-2); font-weight: 400; }
.faq details[open] summary::after { content: '–'; }
.faq details p { margin: 12px 0 0; color: var(--ns-fg-2); font-size: 14.5px; }

/* ── Article body (guide pages) ─────────────────────────────────────────── */
.article { padding-top: 40px; }
.article h2 { text-align: left; font-size: clamp(23px, 3vw, 30px); margin-top: 42px; }
.article h3 { margin-top: 26px; font-size: 18px; }
.article p { color: var(--ns-fg-2); margin: 0 0 16px; }
.article ul, .article ol { color: var(--ns-fg-2); padding-left: 24px; }
.article li { margin-bottom: 8px; }
.article strong { color: var(--ns-fg); }
.crumb { font-size: 13px; color: var(--ns-fg-muted); margin-bottom: 18px; }
.crumb a { color: var(--ns-fg-muted); }

/* ── CTA band ───────────────────────────────────────────────────────────── */
.cta-band {
  text-align: center; border-radius: var(--ns-r-xl); padding: 54px 32px;
  background: linear-gradient(160deg, rgba(199,154,58,.16), rgba(30,75,143,.08));
  border: 1px solid var(--ns-stroke-2);
}

/* ── Footer ─────────────────────────────────────────────────────────────── */
.ftr { border-top: 1px solid var(--ns-stroke); padding: 40px 0 56px; margin-top: 40px; }
.ftr-grid { display: flex; flex-wrap: wrap; gap: 32px; justify-content: space-between; }
.ftr h4 {
  font-size: 12px; text-transform: uppercase; letter-spacing: .09em;
  color: var(--ns-fg-muted); margin: 0 0 12px; font-weight: 700;
}
.ftr ul { list-style: none; margin: 0; padding: 0; }
.ftr li { margin-bottom: 8px; }
.ftr a, .ftr li { font-size: 14px; color: var(--ns-fg-2); }
.ftr-legal {
  margin-top: 32px; padding-top: 22px; border-top: 1px solid var(--ns-stroke);
  font-size: 13px; color: var(--ns-fg-muted);
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}

/* Respect the OS setting — the hero and cards have no essential motion. */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn:hover, .card:hover { transform: none; }
}

/* Watch-on-YouTube link in a video card's meta row. Sits with the duration and
   language chips rather than over the poster: the local file is the player, and
   this is a secondary route to the same recording. */
.vid-yt {
  margin-left: auto; font-family: var(--ns-font-body); font-size: 12.5px;
  font-weight: 600; color: var(--ns-indigo-2); white-space: nowrap;
}
.vid-yt:hover { color: var(--ns-indigo); }