/* SECR S&T Knowledge Portal — walkthrough.
   Palette follows the product itself: warm cream paper, saffron accent,
   Indian Railways emblem red. Light by default, with a dark variant for
   viewers whose OS asks for one. */
:root {
  --bg: #f4f1ea;
  --surface: #fffdf8;
  --surface-2: #faf7f0;
  --border: #e4ddce;
  --border-strong: #d6ccb8;
  --text: #2a2620;
  --muted: #7d7466;
  --accent: #bf6a1a;
  --accent-soft: rgba(191, 106, 26, 0.1);
  --accent-line: rgba(191, 106, 26, 0.35);
  --rail-red: #c62828;
  --shadow: 0 1px 3px rgba(60, 50, 35, .06), 0 12px 32px rgba(60, 50, 35, .09);
  --shadow-lg: 0 4px 10px rgba(60, 50, 35, .07), 0 24px 56px rgba(60, 50, 35, .14);
  --shadow-hover: 0 10px 28px rgba(60, 50, 35, .13);
  --serif: Georgia, "Times New Roman", serif;
  --sans: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, monospace;
  --ease: cubic-bezier(.16, .8, .24, 1);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #17150f; --surface: #201d16; --surface-2: #1b1812;
    --border: #35301f; --border-strong: #4a422d;
    --text: #ece5d6; --muted: #9c9384;
    --accent: #e08a30; --accent-soft: rgba(224,138,48,.14);
    --accent-line: rgba(224,138,48,.4); --rail-red: #ef6f6f;
    --shadow: 0 1px 3px rgba(0,0,0,.5), 0 12px 32px rgba(0,0,0,.4);
    --shadow-lg: 0 4px 10px rgba(0,0,0,.5), 0 28px 64px rgba(0,0,0,.5);
    --shadow-hover: 0 12px 30px rgba(0,0,0,.5);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: var(--sans); line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); }
code {
  font-family: var(--mono); font-size: .9em; background: var(--accent-soft);
  padding: .1em .35em; border-radius: 4px;
}

/* ── nav ── */
.nav {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 1.5rem;
  padding: .75rem clamp(1rem, 4vw, 3rem);
  background: color-mix(in srgb, var(--surface) 86%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow .25s var(--ease);
}
.nav.scrolled { box-shadow: 0 4px 20px rgba(30, 25, 15, .08); }
.nav-brand {
  display: flex; align-items: center; gap: .55rem;
  font-family: var(--serif); font-weight: 700; color: var(--text);
  text-decoration: none; white-space: nowrap;
}
.nav-logo { width: 26px; height: 26px; border-radius: 50%; flex-shrink: 0; }
/* overflow-x:auto is a safety net for a narrow window where nine links don't
   fit — it lets the row scroll rather than wrap or clip. The scrollbar CHROME
   itself is hidden; the scrolling still works via trackpad/drag, it just
   doesn't leave a visible bar sitting in the nav. */
.nav-links {
  display: flex; gap: 1.3rem; margin-left: auto; overflow-x: auto;
  scrollbar-width: none; -ms-overflow-style: none;
}
.nav-links::-webkit-scrollbar { display: none; }
.nav-links a {
  position: relative;
  color: var(--muted); text-decoration: none; font-size: .85rem;
  white-space: nowrap; padding: .35rem 0;
  transition: color .18s ease;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: -1px; height: 2px;
  background: var(--accent); border-radius: 2px;
  transition: right .22s var(--ease);
}
.nav-links a:hover { color: var(--accent); }
.nav-links a.active { color: var(--accent); font-weight: 600; }
.nav-links a.active::after { right: 0; }
@media (max-width: 720px) { .nav-links { display: none; } }

/* ── hero ── */
.hero {
  position: relative; overflow: hidden;
  /* No width cap here, matching the full-width cards below — the 900px cap
     this replaced was narrowing the WHOLE hero (headline, metrics row, glow)
     down to a centered column, not just the body text. The body paragraph
     stays readable regardless: .lede below carries its own 42em cap, so it
     does not stretch into uncomfortably long lines just because its
     container got wider. */
  padding: clamp(3rem, 9vw, 6rem) clamp(1rem, 4vw, 2.5rem) 3.5rem;
  text-align: center;
}
.hero::before, .hero::after {
  content: ""; position: absolute; z-index: 0; pointer-events: none;
  border-radius: 50%; filter: blur(70px);
}
.hero::before {
  width: 420px; height: 420px; top: -140px; left: 6%;
  background: var(--accent); opacity: .28;
}
.hero::after {
  width: 360px; height: 360px; top: 20px; right: 4%;
  background: var(--rail-red); opacity: .16;
}
.hero > * { position: relative; z-index: 1; }

.kicker, .sec-kicker {
  font-size: .72rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--rail-red); margin: 0 0 1rem;
}
.hero h1 {
  font-family: var(--serif); font-weight: 700; margin: 0 0 1.2rem;
  font-size: clamp(2rem, 6vw, 3.4rem); line-height: 1.15; letter-spacing: -.01em;
}
.hero h1 em { color: var(--accent); font-style: italic; }
.lede {
  font-size: clamp(1rem, 2.2vw, 1.15rem); color: var(--muted);
  max-width: 42em; margin: 0 auto;
}

/* Hero entrance — a short staggered rise-and-fade on first paint, not tied
   to scroll (the hero is already on screen when the page loads). */
.hero-in { opacity: 0; transform: translateY(14px); animation: hero-rise .7s var(--ease) forwards; }
.hero-in-2 { animation-delay: .08s; }
.hero-in-3 { animation-delay: .16s; }
.hero-in-4 { animation-delay: .24s; }
@keyframes hero-rise { to { opacity: 1; transform: none; } }

.metrics {
  list-style: none; display: flex; flex-wrap: wrap; justify-content: center;
  gap: .6rem; padding: 0; margin: 2.5rem auto 1.2rem;
}
/* Sized so all five sit on ONE row at desktop width. Five cards wrapping to
   4 + 1 reads as a layout bug rather than a deliberate set. */
.metrics li {
  position: relative; overflow: hidden;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: .8rem .85rem; min-width: 7rem;
  flex: 1 1 7rem; max-width: 11rem;
  box-shadow: 0 1px 2px rgba(60,50,35,.04);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s ease;
}
.metrics li::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--rail-red));
  opacity: .85;
}
.metrics li:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: var(--accent-line);
}
.metrics b {
  display: block; font-family: var(--serif); font-size: 1.7rem;
  line-height: 1.1; color: var(--accent); font-variant-numeric: tabular-nums;
}
.metrics span {
  display: block; font-size: .66rem; color: var(--muted);
  text-transform: uppercase; letter-spacing: .04em; margin-top: .25rem;
  line-height: 1.35;
}
.hero-note { font-size: .82rem; color: var(--muted); margin: 0; }

.scroll-cue {
  display: inline-flex; margin-top: 2.6rem;
  width: 1.6rem; height: 2.6rem; border: 2px solid var(--border-strong);
  border-radius: 999px; position: relative; text-decoration: none;
}
.scroll-cue span {
  position: absolute; top: .4rem; left: 50%; width: .3rem; height: .3rem;
  margin-left: -.15rem; border-radius: 50%; background: var(--accent);
  animation: cue-drop 1.6s ease-in-out infinite;
}
@keyframes cue-drop {
  0%   { transform: translateY(0);    opacity: 1; }
  70%  { transform: translateY(.9rem); opacity: 0; }
  100% { transform: translateY(0);    opacity: 0; }
}

/* ── main / feature cards ── */
/* Full width, no cap — cards now span the browser viewport edge-to-edge
   (minus the padding gutter below), rather than sitting in a centered column
   with dark bands on either side. The one trade-off: the product screenshots
   are captured at ~1920px CSS width, so on a monitor wider than that the
   image is stretched slightly past its native resolution and loses a little
   sharpness. That's an accepted cost of true full width rather than an
   oversight — cap main again (e.g. max-width: 1800px) if it becomes visible
   on the displays this actually gets viewed on. */
main { max-width: none; padding: 1rem clamp(1rem, 4vw, 2.5rem) 0; }

.feature {
  --pad: clamp(1.75rem, 4vw, 3rem);
  position: relative; overflow: hidden;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 20px; box-shadow: var(--shadow);
  padding: var(--pad);
  margin: 0 0 clamp(1.75rem, 4vw, 2.75rem);
}
.feature::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--rail-red));
  opacity: .8;
}

.feature-head {
  display: grid; grid-template-columns: auto 1fr; align-items: start;
  gap: 1.4rem; margin-bottom: 1.9rem;
}
.feature-head-plain { grid-template-columns: 1fr; }
.feature-num {
  font-family: var(--serif); font-weight: 700; line-height: 1;
  font-size: clamp(2.3rem, 5.5vw, 3.6rem);
  color: var(--accent); opacity: .16;
}
@supports (-webkit-text-stroke: 1px black) {
  .feature-num { color: transparent; -webkit-text-stroke: 1.5px var(--accent); opacity: .5; }
}
.feature h2 {
  font-family: var(--serif); font-weight: 700;
  font-size: clamp(1.4rem, 3.2vw, 1.9rem); margin: 0 0 .7rem; line-height: 1.25;
}
.sec-lede { color: var(--muted); max-width: 46em; margin: 0; }
@media (max-width: 640px) {
  .feature-head { grid-template-columns: 1fr; gap: .4rem; }
  .feature-num { display: none; }
}

/* screenshots framed as a captured browser window — dots + a fake address
   bar — so they read as "this is the real, running product" rather than a
   loose crop dropped onto the page. */
/* Bleeds past the card's own side padding to reach the card's full width —
   the previous version was inset by --pad on both sides on top of main's own
   cap, so a screenshot of a 1920px-wide UI was rendering under 900px. This
   is the fix that actually restores legibility; widening main alone would
   not have, since the card padding was eating the gain. */
.shot-frame {
  margin: 0 calc(-1 * var(--pad));
  border-radius: 14px; overflow: hidden;
  border: 1px solid var(--border-strong); box-shadow: var(--shadow-lg);
  background: var(--surface-2);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.shot-frame:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover), var(--shadow-lg); }
.shot-chrome {
  display: flex; align-items: center; gap: .4rem;
  padding: .6rem .8rem;
  background: var(--surface-2); border-bottom: 1px solid var(--border);
}
.dot { width: .62rem; height: .62rem; border-radius: 50%; flex-shrink: 0; }
.dot-r { background: #ff5f57; } .dot-y { background: #febc2e; } .dot-g { background: #28c840; }
.shot-frame img { display: block; width: 100%; height: auto; }

/* ── annotated diagram (desktop) ─────────────────────────────────────────
   A self-contained explainer panel, not a screenshot with things floating
   on top of it. Its own fixed light surface regardless of this page's
   theme — it is explaining the PRODUCT's screenshot, which is always the
   light UI, so a dark-mode reader must not get a dark label vanishing
   against a cream image.

   .callout-shot (the <figure>) reserves the padding; .callout-panel is a
   ZERO-padding box whose width/height end up being defined purely by
   .callout-img (margin: 0 23% narrows it to a centred 54%-wide column,
   height follows from the image's own aspect ratio). That is what makes
   the coordinate system below work: every percentage — the SVG's viewBox,
   the labels' left/top — resolves against that same box, so a point
   measured as "31% across the SCREENSHOT" converts with one fixed formula:
       panel% = 23 + screenshot% × 0.54
   (23 for the left gutter, 0.54 because the image occupies 54% of the
   panel). All six line endpoints below were computed that way from pixel
   coordinates measured on the real qa.png (1918×973) — see the comment in
   index.html for how each target was found. */
/* No padding: the image bleeds to the card's own edges exactly like every
   other .shot-frame on the page. The 2rem/1.5rem inset this replaced left
   the diagram visibly narrower than its neighbours. */
.callout-shot {
  padding: 0;
  background: #f4f1ea; border: 1px solid #d6ccb8;
}
.callout-panel { position: relative; padding: 0; }
/* width MUST be restated here. `.shot-frame img { width: 100% }` above still
   applies to this image, and `margin: 0 23%` only shifts the box — it does
   not shrink it. The result was a 100%-wide image starting at 23%, running
   off to 123% of the panel and sliding underneath the right-hand labels.
   54% + two 23% gutters = 100%, so these two values must stay in sync with
   the 23/0.54 conversion formula documented above. */
/* `.shot-frame .callout-img`, not a bare `.callout-img`: the rule above is
   `.shot-frame img` (specificity 0,1,1) and this figure carries BOTH
   classes, so a single-class selector loses the cascade no matter how far
   down the file it sits — source order only decides ties.

   FULL width. An earlier version shrank this to 68% to make room for label
   gutters either side, which kept the labels clear but rendered the UI text
   inside the screenshot too small to read — defeating the point of showing
   it. The screenshot has ~30% of blank margin on its own left and ~31% on
   its right (measured on qa.png: content occupies x 588-1328 of 1918), so
   the labels can simply live IN those margins at full size. */
.shot-frame .callout-img {
  display: block; width: 100%; height: auto; margin: 0;
}

.callout-lines {
  position: absolute; inset: 0; width: 100%; height: 100%;
  pointer-events: none;
}
.callout-lines line {
  /* non-scaling-stroke means these are read as roughly literal CSS pixels,
     NOT user units warped by the viewBox's (very anisotropic) scale — 1.2
     is a crisp, visible line; the .18 first tried here was sub-pixel and
     essentially invisible. */
  stroke: var(--accent); stroke-width: 1.2; stroke-dasharray: 5 4;
  stroke-linecap: round; vector-effect: non-scaling-stroke;
}

.callout {
  position: absolute; width: 26%;
  font-size: .72rem; line-height: 1.4; color: #2a2620;
}
.callout b { display: block; font-family: var(--serif); font-size: .82rem; margin-bottom: .2rem; }
.callout span { color: #7d7466; }
/* Left-column labels are RIGHT-aligned so their text ends flush against the
   point each dashed line starts from. Left-aligning them (the previous
   version) pinned every label to the card's outer edge and left a wide,
   ragged gap between the words and their own connector — they read as
   stranded in the margin rather than attached to anything. The right column
   needs no such trick: left-aligned text there already starts flush against
   where its lines arrive. */
.callout-l { text-align: right; }
.callout-r { text-align: left; }

/* ── narrow-viewport fallback ──
   Six precisely-pointed labels do not survive a phone-width render — the
   gutters they live in shrink faster than the text does. Below 700px the
   whole diagram panel is replaced with a compact caption list instead of
   trying to force the same layout smaller. */
.callout-caption { display: none; }
/* 1000px, not 700: the labels are positioned as a % of the IMAGE's height,
   and that height shrinks with the viewport. Below ~1000px the two closest
   pairs (targets only ~5-6% apart) are separated by fewer pixels than a
   two-line label is tall, so they overlap. The caption list takes over. */
@media (max-width: 1000px) {
  .callout-shot { padding: 1rem; }
  .callout-lines, .callout { display: none; }
  /* image is already full width; nothing to reset here */
  .callout-caption {
    display: grid; gap: .35rem; margin: 1rem 0 0;
    font-size: .78rem; line-height: 1.5; color: #7d7466;
  }
  .callout-caption b { color: #2a2620; }
}

/* the dark-mode screenshot's own chrome bar reads as "dark" regardless of
   the viewer's theme — it is showing dark mode, not adapting to one. */
.shot-chrome-dark { background: #1b1812; border-bottom-color: #35301f; }

.notice {
  margin-top: 1.5rem; padding: 1.05rem 1.3rem;
  background: var(--accent-soft); border-left: 3px solid var(--accent);
  border-radius: 12px; font-size: .92rem;
}
.notice b {
  display: block; font-size: .72rem; letter-spacing: .1em;
  text-transform: uppercase; color: var(--accent); margin-bottom: .3rem;
}

/* ── phones ── */
/* Capped and centred. These screenshots are 1290×2796 — a 2.17:1 portrait
   ratio — so across a full-width card each device rendered ~500px wide and
   over 1000px tall, filling the viewport on its own. Constraining the ROW
   (rather than the images) keeps all three on screen together, which is the
   entire point of showing them side by side. ~230px each is close to a
   phone's real physical width, so the set reads as three handsets rather
   than three oversized posters. */
.phones {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.75rem;
  max-width: 760px; margin: 0 auto;
}
.phone { margin: 0; }
.phone-shell {
  position: relative; overflow: hidden;
  /* Bezel scaled down with the device — an 8px frame that looked right at
     500px wide reads as a thick plastic border at 230px. */
  border-radius: 24px; border: 6px solid var(--surface-2);
  outline: 1px solid var(--border-strong); outline-offset: -1px;
  box-shadow: var(--shadow-lg);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.phone-shell:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover), var(--shadow-lg); }
/* The notch must be FLUSH with the top of the screen area — it reads as the
   bezel dipping down into the display. At `top: 4px` (the previous value) a
   sliver of the screenshot showed above it, so it floated as a detached
   black pill instead of connecting to the frame. Same colour as the border
   for the same reason: they are meant to be one continuous piece. */
.phone-shell::before {
  content: ""; position: absolute; z-index: 2; top: 0; left: 50%;
  /* Deliberately small. These screenshots have no status-bar strip of their
     own — the app header starts at pixel row 0 — so anything larger eats the
     emblem and title. A shallow pill reads as a device cue without
     obscuring the UI it is framing. */
  transform: translateX(-50%); width: 22%; height: 8px;
  background: var(--surface-2); border-radius: 0 0 7px 7px;
}
.phone-shell img { display: block; width: 100%; height: auto; }
.phone figcaption {
  text-align: center; font-size: .78rem; color: var(--muted);
  margin-top: .7rem; text-transform: uppercase; letter-spacing: .07em;
}

/* ── pipeline ── */
.pipeline {
  counter-reset: step; list-style: none; padding: 0; margin: 0;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.05rem;
}
.pipeline li {
  counter-increment: step; position: relative;
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 14px; padding: 1.3rem 1.25rem 1.3rem;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s ease;
}
.pipeline li:hover {
  transform: translateY(-4px); box-shadow: var(--shadow-hover);
  border-color: var(--accent-line);
}
.pipeline li::before {
  content: counter(step);
  display: flex; align-items: center; justify-content: center;
  width: 2.15rem; height: 2.15rem; margin-bottom: .85rem;
  border-radius: 50%; background: var(--accent-soft); color: var(--accent);
  border: 1px solid var(--accent-line);
  font-family: var(--serif); font-weight: 700; font-size: .95rem;
}
.pipeline b { display: block; margin-bottom: .25rem; font-size: 1.02rem; }
.pipeline span { font-size: .88rem; color: var(--muted); line-height: 1.5; }

/* ── capability list (section 09) ── */
.caps {
  list-style: none; padding: 0; margin: 0;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.05rem;
}
.caps li {
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 14px; padding: 1.3rem 1.25rem;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s ease;
}
.caps li:hover {
  transform: translateY(-4px); box-shadow: var(--shadow-hover);
  border-color: var(--accent-line);
}
.caps b {
  display: block; font-family: var(--serif); font-size: 1.02rem; margin-bottom: .4rem;
}
.caps span { display: block; font-size: .9rem; line-height: 1.5; }
.caps em {
  display: block; margin-top: .7rem; padding-top: .7rem;
  border-top: 1px solid var(--border);
  font-style: normal; font-size: .84rem; color: var(--muted); line-height: 1.5;
}

/* ── evaluation (section 10) ── */
.eval-grid {
  display: grid; grid-template-columns: 1.6fr 1fr; gap: clamp(1.25rem, 3vw, 2.25rem);
  align-items: start;
}
@media (max-width: 900px) { .eval-grid { grid-template-columns: 1fr; } }

.eval-table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.eval-table th {
  text-align: left; font-size: .7rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--muted); font-weight: 700; padding: 0 .8rem .6rem 0;
  border-bottom: 1px solid var(--border-strong);
}
.eval-table td {
  padding: .7rem .8rem .7rem 0; border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.eval-table tr:last-child td { border-bottom: 0; }
.eval-table td:nth-child(2) { white-space: nowrap; }
.eval-table td:nth-child(2) b {
  font-family: var(--serif); font-size: 1.05rem; color: var(--accent);
}
.eval-table td:nth-child(3) { color: var(--muted); font-size: .84rem; line-height: 1.5; }

.eval-suites {
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 14px; padding: 1.2rem 1.3rem;
}
.eval-suites > b {
  display: block; font-size: .7rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--accent); margin-bottom: .8rem;
}
.eval-suites ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .75rem; }
.eval-suites li { font-size: .82rem; color: var(--muted); line-height: 1.45; }
.eval-suites li span {
  display: block; color: var(--text); font-weight: 600; font-size: .87rem;
}

/* The caveat reads as a limitation, not a feature — railway red rather than
   the accent used by every other callout on the page. */
.notice-caveat {
  background: color-mix(in srgb, var(--rail-red) 7%, transparent);
  border-left-color: var(--rail-red);
}
.notice-caveat b { color: var(--rail-red); }

/* ── footer ── */
/* Footer matches the card system used by every section above, rather than
   sitting as loose text on the page background — it was the one block that
   still read as an afterthought. Full width like main, since the cards it
   now mirrors are full width too. */
footer {
  padding: 1rem clamp(1rem, 4vw, 2.5rem) 3.5rem;
  font-size: .88rem;
}
footer p { margin: 0; }

.foot-card {
  position: relative; overflow: hidden;
  display: grid; grid-template-columns: 1.35fr 1fr; gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: start;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 20px; box-shadow: var(--shadow);
  padding: clamp(1.6rem, 3.5vw, 2.5rem);
}
.foot-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--rail-red));
  opacity: .8;
}

.foot-id { display: flex; gap: 1rem; align-items: start; }
.foot-logo { flex-shrink: 0; border-radius: 50%; }
.foot-id > div > b {
  display: block; font-family: var(--serif); font-size: 1.12rem; line-height: 1.3;
}
.foot-id > div > span {
  display: block; color: var(--rail-red); font-size: .78rem; font-weight: 600;
  margin-top: .15rem;
}
.fine { color: var(--muted); font-size: .8rem; margin-top: .75rem !important; }

.access-note {
  padding: 1.05rem 1.25rem;
  background: color-mix(in srgb, var(--rail-red) 7%, transparent);
  border: 1px solid color-mix(in srgb, var(--rail-red) 22%, transparent);
  border-radius: 14px; font-size: .84rem; color: var(--text);
}
.access-note b {
  display: flex; align-items: center; gap: .4rem;
  font-size: .72rem; letter-spacing: .1em;
  text-transform: uppercase; color: var(--rail-red); margin-bottom: .6rem;
}
.access-note b svg { width: 1rem; height: 1rem; flex-shrink: 0; }
.access-note ul {
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: .5rem;
}
.access-note li { position: relative; padding-left: 1rem; line-height: 1.5; }
.access-note li::before {
  content: ""; position: absolute; left: 0; top: .55em;
  width: .32rem; height: .32rem; border-radius: 50%;
  background: var(--rail-red); opacity: .65;
}
.access-foot {
  margin-top: .85rem !important; padding-top: .7rem;
  border-top: 1px solid color-mix(in srgb, var(--rail-red) 18%, transparent);
  color: var(--muted); font-size: .78rem;
}

.foot-base {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: .6rem;
  margin-top: 1.2rem; padding: 0 .3rem;
  color: var(--muted); font-size: .76rem;
}

@media (max-width: 820px) {
  .foot-card { grid-template-columns: 1fr; }
}

/* asset not added yet — show the expected path rather than a broken icon,
   whatever kind of frame is wrapping it (screenshot chrome, phone bezel,
   the phone bezel). */
[data-file].missing img,
[data-file].missing .shot-chrome,
[data-file].missing .phone-shell { display: none; }
[data-file].missing::before {
  content: "screenshot pending — " attr(data-file);
  display: flex; align-items: center; justify-content: center;
  min-height: 220px; padding: 2rem; text-align: center;
  border: 2px dashed var(--border-strong); border-radius: 14px;
  color: var(--muted); font-size: .85rem; font-family: var(--mono);
}
.phone.missing { display: flex; flex-direction: column; }

/* ── scroll reveal ── */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .65s var(--ease), transform .65s var(--ease); }
.reveal.in-view { opacity: 1; transform: none; }
/* Staggered rise for the cards inside a revealed group — the group itself
   fades in as one trigger, but its children arrive a beat apart so the page
   reads as an unfolding sequence rather than a single flat pop-in. */
.reveal.in-view .metrics li,
.reveal.in-view .pipeline li {
  animation: child-rise .55s var(--ease) backwards;
}
.metrics li:nth-child(1), .pipeline li:nth-child(1) { animation-delay: .03s; }
.metrics li:nth-child(2), .pipeline li:nth-child(2) { animation-delay: .09s; }
.metrics li:nth-child(3), .pipeline li:nth-child(3) { animation-delay: .15s; }
.metrics li:nth-child(4), .pipeline li:nth-child(4) { animation-delay: .21s; }
.metrics li:nth-child(5), .pipeline li:nth-child(5) { animation-delay: .27s; }
.pipeline li:nth-child(6) { animation-delay: .33s; }
@keyframes child-rise { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal, .hero-in { opacity: 1 !important; transform: none !important; }
  .scroll-cue span { display: none; }
}
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

@media (max-width: 720px) {
  .hero::before, .hero::after { display: none; }
}