/* VLPremier Pro · features page layout + page components. DESIGN PROTOTYPE ONLY.
   Page components (candidates for components.css): .crop (screenshot crop), .tier (Creator / Pro tag), .caps, .learn. */

/* ---------- screenshot crop: <a|span class="crop" style="--ar;--z;--x;--y"> + <picture>. x/y = top-left of the
   visible region as a fraction of the image; z = zoom (image width / frame width). Same rule on home + pages. ---------- */

/* ---------- tier tags: text tags, never colour alone ---------- */
.tier { display: inline-flex; align-items: center; height: 22px; padding: 0 7px; border-radius: 4px; border: 1px solid var(--line-strong); font: 500 var(--fs-meta)/1 var(--font-mono); font-style: normal; color: var(--text); white-space: nowrap; }
.tier.pro { border-color: rgb(79 163 245 / .45); background: rgb(79 163 245 / .1); color: var(--accent-bright); }

/* ---------- hero ---------- */
.f-hero { padding-top: calc(var(--nav-h) + 64px); padding-bottom: 72px; overflow: clip; }
.f-hero-grid { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: clamp(32px, 6vw, 96px); align-items: end; }
.f-hero h1 { margin-bottom: 22px; }
.f-hero h1 .hi { color: var(--accent-bright); }
.legend { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 12px 24px; align-items: center; font-size: 14px; color: var(--muted); }
.legend span { display: inline-flex; align-items: center; gap: 8px; }
.legend .proposal { flex-basis: 100%; }
.counts { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.counts li { padding: 20px 16px 22px 0; border-bottom: 1px solid var(--line); }
.counts li:not(:nth-child(3n + 1)) { padding-left: 16px; border-left: 1px solid var(--line); }
.counts b { display: block; font: 820 clamp(28px, 2.7vw, 40px)/1 var(--font-display); letter-spacing: -0.03em; white-space: nowrap; }
.counts span { display: block; margin-top: 8px; font: 400 var(--fs-label)/1.4 var(--font-mono); color: var(--muted); }

/* ---------- sticky sub-nav (site.js [data-toc] marks aria-current) ---------- */
.subnav { position: sticky; top: var(--nav-h); z-index: var(--z-sticky); background: rgb(9 13 23 / .94); border-block: 1px solid var(--line); }
.subnav ul { display: flex; gap: 4px; list-style: none; margin: 0; padding: 0; overflow-x: auto; scrollbar-width: none; }
.subnav ul::-webkit-scrollbar { display: none; }
.subnav a { position: relative; display: flex; align-items: center; min-height: 48px; padding: 0 14px; white-space: nowrap; text-decoration: none; font-size: var(--fs-sm); font-weight: 600; color: var(--muted); transition: color var(--t-tap); }
.subnav li:first-child a { padding-left: 0; }
.subnav a::after { content: ""; position: absolute; left: 14px; right: 14px; bottom: -1px; height: 2px; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform var(--t-fast) var(--ease); }
.subnav li:first-child a::after { left: 0; }
.subnav a:hover, .subnav a[aria-current] { color: var(--text); }
.subnav a[aria-current]::after { transform: scaleX(1); }

/* ---------- sections ---------- */
.f-body { padding-block: 72px var(--section-y); }
/* spacing lives in padding so a sub-nav jump lands the content below the sticky strip while the section top
   has already passed the scroll-spy line (nav + 24px); html scroll-padding-top adds nav + 16px */
.fsec { padding-top: 64px; }
.fsec + .fsec { padding-top: var(--feature-gap); scroll-margin-top: calc(70px - var(--feature-gap)); }
.fs-split { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(32px, 5vw, 72px); align-items: center; }
.fs-split.rev { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
.fcopy h2 { font-size: var(--fs-h3-lg); }
.fcopy > p { margin-top: 18px; color: var(--muted); max-width: 46ch; }
.fcopy .callout { margin-top: 24px; }
.caps { list-style: none; margin: 24px 0 0; padding: 0; display: grid; gap: 0; }
.caps li { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 12px; align-items: baseline; padding: 11px 0; border-top: 1px solid var(--line); font-size: 16px; line-height: 1.45; }
.caps li .tier { justify-self: start; transform: translateY(-1px); }
.caps small { display: block; margin-top: 2px; font-size: 14px; color: var(--muted); }

/* "Learn it" cross-link into tutorials */
.learn { display: inline-grid; grid-template-columns: 36px minmax(0, 1fr) auto; gap: 14px; align-items: center; margin-top: 28px; padding: 10px 16px 10px 10px; border: 1px solid var(--line-strong); border-radius: var(--r-ctl); text-decoration: none; max-width: 100%; transition: border-color var(--t-tap), transform var(--t-tap) var(--ease); }
.learn:hover { border-color: var(--text); transform: translateY(-1px); }
.learn .pl { width: 36px; height: 36px; border-radius: var(--r-ctl); background: var(--surface-2); position: relative; }
.learn .pl::before { content: ""; position: absolute; left: 14px; top: 12px; border-left: 10px solid var(--text); border-top: 6px solid transparent; border-bottom: 6px solid transparent; }
.learn small { display: block; font: 600 14px/1.3 var(--font-display); color: var(--muted); }   /* 2026-10-29: sentence case, no mono capitals */
.learn b { display: block; font-size: 15px; font-weight: 600; line-height: 1.3; }
.learn em { font: 500 var(--fs-label)/1 var(--font-mono); font-style: normal; color: var(--accent-bright); }

/* full-width band */
.fs-wide-head { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: clamp(32px, 5vw, 72px); align-items: end; margin-bottom: 40px; }
.fs-wide-head .caps { margin-top: 0; }

/* shorts triptych: list crop + two vertical frames */
.trio { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr) minmax(0, 1fr); gap: 16px; align-items: start; }
.trio > :nth-child(2) { margin-top: 40px; }
.trio .fig.is-tall img { width: 100%; }
.trio .fig.is-tall > a { width: 100%; }
.trio .fig figcaption { font-size: 13px; }

/* color + audio pair */
.fs-pair { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: 24px clamp(32px, 5vw, 72px); align-items: start; }
.fs-pair .caps { margin-top: 0; }
.pair { grid-column: 1 / -1; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 20px; margin-top: 24px; }

/* voice + AI offset stack */
.stack2 { display: grid; gap: 24px; }
.stack2 > :last-child { width: 78%; margin-left: auto; }

/* ---------- responsive ---------- */
@media (max-width: 1180px) {
  .f-hero-grid { grid-template-columns: minmax(0, 1fr); align-items: start; }
}
@media (max-width: 860px) {
  .fs-split, .fs-split.rev, .fs-wide-head, .fs-pair { grid-template-columns: minmax(0, 1fr); }
  .fs-split > .fcopy { order: -1; }
}
@media (max-width: 719px) {
  /* phones: one feature area at a time (site.js tab carousel); the sticky sub-nav is replaced by the tab strip */
  .subnav { display: none; }
  .f-body { padding-top: 48px; }
  .fsec, .fsec + .fsec { padding-top: 0; scroll-margin-top: 0; }
  .counts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .counts li:not(:nth-child(3n + 1)) { padding-left: 0; border-left: 0; }
  .counts li:nth-child(even) { padding-left: 16px; border-left: 1px solid var(--line); }
  .trio { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .trio > :first-child { grid-column: 1 / -1; }
  .trio > :nth-child(2) { margin-top: 0; }
  .pair { grid-template-columns: minmax(0, 1fr); }
  .learn { grid-template-columns: 36px minmax(0, 1fr); }
  .learn em { display: none; }
}
@media (max-width: 640px) {
  .f-hero { padding-top: calc(var(--nav-h) + 40px); padding-bottom: 48px; }
  .caps li { grid-template-columns: 60px minmax(0, 1fr); }
  .stack2 > :last-child { width: 100%; }
}