/* =========================================================================
   SafeAll Asia — corporate site stylesheet
   Design language (owned by ui-ux):
     Red #C00000 (primary / alert accent) · Black #1A1A1A · White
     Thai typography: IBM Plex Sans Thai · Dark theme by default
   ========================================================================= */

/* ---------- tokens ---------- */
:root {
  --red:          #C00000;
  --red-bright:   #E11D1D;
  --red-text:     #FF5A5A; /* AA-safe (>=6:1) on --bg / --bg-alt for small text; --red-bright is for large text/hover only */
  --red-dim:      rgba(192, 0, 0, 0.14);
  --red-line:     rgba(192, 0, 0, 0.38);

  --bg:           #101012;
  --bg-alt:       #0B0B0D;
  --surface:      #1A1A1A;
  --surface-2:    #212126;
  --line:         #2C2C33;
  --line-soft:    rgba(255, 255, 255, 0.07);

  --text:         #F4F4F5;
  --text-2:       #C6C6CC;
  --muted:        #8E8E98;

  --ok:           #12B76A;
  --warn:         #F5A524;
  --crit:         #C00000;
  --offline:      #6B6B75;

  --font: "IBM Plex Sans Thai", "IBM Plex Sans", -apple-system,
          BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --maxw: 1180px;
  --pad: clamp(20px, 5vw, 48px);
  --radius: 14px;
  --radius-sm: 8px;

  --shadow: 0 18px 48px rgba(0, 0, 0, 0.5);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);

  --grid-line: rgba(255, 255, 255, 0.045);
  --lh-th: 1.5;

  /* left edge of the page column and the width of the text column used by the scroll stage (text stays in the left 44%) */
  --L: max(var(--pad), calc((100vw - var(--maxw)) / 2 + var(--pad)));
  --pw: max(340px, calc(44vw - var(--L)));
  /* homepage hero only: solid enough under the text column that body text keeps >= 7:1 even over the brightest lit windows,
     then fades out so the city stays strong on the right half. The flow section keeps --scrim. */
  --scrim-hero: linear-gradient(90deg, rgba(16, 16, 18, 0.93) 0, rgba(16, 16, 18, 0.91) 50%, rgba(16, 16, 18, 0.45) 60%, rgba(16, 16, 18, 0.10) 72%, rgba(16, 16, 18, 0) 84%);
  /* bottom edge of the hero melts into the page background, no seam where the canvas/poster ends */
  --hero-fade: linear-gradient(0deg, var(--bg) 0, rgba(16, 16, 18, 0) 160px);
  --scrim: linear-gradient(90deg, rgba(16, 16, 18, 0.90) 0, rgba(16, 16, 18, 0.74) 36%, rgba(16, 16, 18, 0.22) 62%, rgba(16, 16, 18, 0) 82%);
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.75;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  margin: 0;
  line-height: 1.25;
  font-weight: 600;
  letter-spacing: -0.01em;
}

p { margin: 0; }

ul { margin: 0; padding: 0; list-style: none; }

/* ---------- layout ---------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.section { padding-block: clamp(64px, 9vw, 118px); }
.section--tight { padding-block: clamp(48px, 6vw, 76px); }
.section--alt { background: var(--bg-alt); border-block: 1px solid var(--line-soft); }

.stack > * + * { margin-top: 18px; }

/* anchor targets must clear the sticky 70px header */
[id] { scroll-margin-top: 88px; }

/* ---------- type helpers ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--red-text);
  margin-bottom: 16px;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--red);
  flex: none;
}

/* Thai glyphs are wider and taller than Latin at the same px size, so these
   caps sit lower than a Latin-only site would use. */
.h1 { font-size: clamp(31px, 4.4vw, 50px); letter-spacing: -0.02em; line-height: 1.32; }
.h2 { font-size: clamp(25px, 3.2vw, 36px); letter-spacing: -0.015em; line-height: 1.34; }
.h3 { font-size: clamp(19px, 2vw, 22px); }

.lead {
  font-size: clamp(17px, 1.7vw, 20px);
  color: var(--text-2);
  max-width: 62ch;
}

.muted { color: var(--muted); }
.card .small a { text-decoration: underline; text-underline-offset: 3px; }
.small { font-size: 14.5px; line-height: 1.65; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 26px;
  border-radius: 999px;
  border: 1px solid transparent;
  font: inherit;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: background .2s var(--ease), border-color .2s var(--ease),
              transform .2s var(--ease), color .2s var(--ease);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }

.btn--primary { background: var(--red); color: #fff; }
.btn--primary:hover { background: var(--red-bright); }

.btn--ghost { border-color: var(--line); color: var(--text); background: transparent; }
.btn--ghost:hover { border-color: var(--red); color: #fff; background: var(--red-dim); }

.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }

/* ---------- header ---------- */
.hdr {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(16, 16, 18, 0.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-soft);
}
.hdr__in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 70px;
}

.logo { display: flex; align-items: center; gap: 11px; flex: none; }
.logo__mark {
  width: 32px; height: 32px;
  object-fit: contain;
  flex: none;
}
.logo__text { font-size: 18.5px; font-weight: 700; letter-spacing: -0.02em; }
.logo__text span { color: var(--muted); font-weight: 400; }

.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 15.5px;
  color: var(--text-2);
  transition: color .18s var(--ease), background .18s var(--ease);
}
.nav a:hover { color: #fff; background: rgba(255, 255, 255, 0.06); }
.nav a[aria-current="page"] { color: #fff; background: var(--red-dim); }

.hdr__cta { display: flex; align-items: center; gap: 10px; }
.hdr__cta .btn { padding: 10px 20px; font-size: 15px; }

/* language switcher (TH | EN): lives in .hdr__cta, outside #nav, so it stays visible at every width.
   The bar stays 70px; the ::after pads the touch target to 44px tall. */
.lang { display: flex; align-items: center; gap: 2px; flex: none; }
.lang a {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 8px 10px;
  border-radius: 999px;
  font-size: 15px;
  line-height: 1.4;
  white-space: nowrap;
  color: var(--text-2);
  transition: color .18s var(--ease), background .18s var(--ease);
}
.lang a::after { content: ""; position: absolute; top: -4px; bottom: -4px; left: -1px; right: -1px; }
.lang a:hover { color: #fff; background: rgba(255, 255, 255, 0.06); }
.lang a[aria-current="true"] { color: #fff; background: var(--red-dim); }

.burger {
  display: none;
  width: 42px; height: 42px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: transparent;
  cursor: pointer;
  padding: 0;
  place-items: center;
}
.burger span {
  display: block;
  width: 17px; height: 2px;
  background: var(--text);
  position: relative;
  transition: background .18s var(--ease);
}
.burger span::before, .burger span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 17px; height: 2px;
  background: var(--text);
  transition: transform .22s var(--ease);
}
.burger span::before { top: -5.5px; }
.burger span::after  { top:  5.5px; }
.burger[aria-expanded="true"] span { background: transparent; }
.burger[aria-expanded="true"] span::before { transform: translateY(5.5px) rotate(45deg); }
.burger[aria-expanded="true"] span::after  { transform: translateY(-5.5px) rotate(-45deg); }

/* ---------- hero ---------- */
.hero {
  position: relative;
  padding-block: clamp(64px, 10vw, 118px);
  overflow: hidden;
  display: flex;
  align-items: center;
}
/* full-height hero, scrim and poster belong to the homepage hero only (inner pages use .hero--page) */
.hero:not(.hero--page) {
  min-height: min(calc(100vh - 70px), 760px);
  min-height: min(calc(100svh - 70px), 760px);
}
/* scrim keeps the text legible over the poster / the live canvas */
.hero:not(.hero--page)::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--hero-fade), var(--scrim-hero);
  pointer-events: none;
}
/* poster: paints first (pure CSS), sits behind the canvas, which fades in over it */
.hero:not(.hero--page)::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--bg) url(img/city-poster-1600.webp) center / cover no-repeat fixed;
  pointer-events: none;
}
@media (max-width: 800px) {
  .hero:not(.hero--page)::after { background-image: url(img/city-poster-800.webp); background-attachment: scroll; background-position: 50% 22%; }
}
.hero__in { position: relative; z-index: 1; }
.hero__tag { position: absolute; right: var(--pad); bottom: 18px; z-index: 1; background: rgba(16, 16, 18, 0.72); }
@media (min-width: 701px) {
  .hero:not(.hero--page) .lead { max-width: min(62ch, var(--pw)); }
}
/* narrow tablets: the headline wraps inside the same text column as the lead, so it never runs out over the lit city */
@media (min-width: 701px) and (max-width: 1100px) {
  .hero:not(.hero--page) .h1--hero { max-width: min(20ch, var(--pw)); }
}
@media (max-width: 700px) {
  .hero { align-items: flex-end; padding-bottom: 36px; }
  /* phone: the text block is stacked at the bottom, so eyebrow, h1 and lead all sit on the solid part;
     percentages of the hero box (always as tall as its content) need no vh/svh fallback */
  .hero:not(.hero--page)::before { background: var(--hero-fade), linear-gradient(0deg, rgba(16, 16, 18, 0.92) 0, rgba(16, 16, 18, 0.9) 90%, rgba(16, 16, 18, 0.55) 95%, rgba(16, 16, 18, 0) 100%); }
  .hero__tag { right: auto; left: var(--pad); top: 14px; bottom: auto; }
}

.hero--page { padding-bottom: clamp(20px, 3vw, 40px); }
.hero .lead { margin-top: 22px; }

/* ---------- inner-page hero scene (data-scene) ----------
   Poster = fallback and first paint (no canvas, no three.js request). The ambient canvas sits above it and under the
   scrim (the hero is its own stacking context); .hero__in stays on top. Only .hero--page[data-scene] is touched here. */
.hero--page[data-scene] {
  --scene-h: 420px;
  --poster-y: 20%;
  isolation: isolate;
  min-height: var(--scene-h);
  background: var(--bg) url(img/city-poster-800.webp) 50% var(--poster-y) / cover no-repeat;
}
.hero--page[data-scene="platform"] { --scene-h: 420px; --poster-y: 12%; }
.hero--page[data-scene="integrations"] { --scene-h: 400px; --poster-y: 34%; }
.hero--page[data-scene="industries"] { --scene-h: 400px; --poster-y: 58%; }
.hero--page[data-scene="security"] { --scene-h: 360px; --poster-y: 4%; }
.hero--page[data-scene="about"] { --scene-h: 340px; --poster-y: 76%; }
.hero--page[data-scene="contact"] { --scene-h: 260px; --poster-y: 92%; }
/* wide screens: the 1600 poster is landscape, so the hero strip (about 3.6:1) shows a band of it; each page picks a band
   that holds a skyline rather than the sky above it (the narrow screens keep the portrait 800 poster and the values above) */
@media (min-width: 701px) {
  .hero--page[data-scene] { background-image: url(img/city-poster-1600.webp); }
  .hero--page[data-scene="platform"] { --poster-y: 52%; }
  .hero--page[data-scene="integrations"] { --poster-y: 60%; }
  .hero--page[data-scene="industries"] { --poster-y: 68%; }
  .hero--page[data-scene="security"] { --poster-y: 46%; }
  .hero--page[data-scene="about"] { --poster-y: 80%; }
  .hero--page[data-scene="contact"] { --poster-y: 100%; }
  /* industries: the zones run over the first half of the hero exit, so the hero needs room to be seen doing it */
  .hero--page[data-scene="industries"] { --scene-h: 480px; min-height: var(--scene-h); min-height: clamp(480px, 66svh, 640px); }
}
/* scrim: >= .88 under the text column (about 54vw), gone by about 80% of the width; the bottom edge melts into the page */
.hero--page[data-scene]::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, var(--bg) 0, rgba(16, 16, 18, 0) 72px),
    linear-gradient(90deg, rgba(16, 16, 18, 0.94) 0, rgba(16, 16, 18, 0.9) 54%, rgba(16, 16, 18, 0.42) 64%, rgba(16, 16, 18, 0.1) 73%, rgba(16, 16, 18, 0) 80%);
  pointer-events: none;
}
.hero--page[data-scene] .stage-canvas--ambient { position: absolute; inset: 0; z-index: -1; }
.hero--page[data-scene] .hero__ctl {
  position: absolute; right: var(--pad); bottom: 18px; z-index: 2;
  display: flex; align-items: center; gap: 8px;
}
@media (min-width: 701px) {
  .hero--page[data-scene] .h1, .hero--page[data-scene] .lead { max-width: min(62ch, calc(54vw - var(--L))); }
}
@media (max-width: 700px) {
  .hero--page[data-scene] { --scene-h: 340px; padding-top: 176px; }
  .hero--page[data-scene="integrations"] { --scene-h: 320px; }
  .hero--page[data-scene="industries"] { --scene-h: 320px; padding-top: 340px; }
  .hero--page[data-scene="security"] { --scene-h: 300px; }
  .hero--page[data-scene="about"] { --scene-h: 280px; }
  .hero--page[data-scene="contact"] { --scene-h: 220px; }
  /* phone: the text block sits at the bottom, so the scrim runs bottom-up and leaves the top strip to the scene */
  .hero--page[data-scene]::before {
    background: linear-gradient(0deg, var(--bg) 0, rgba(16, 16, 18, 0) 56px),
      linear-gradient(0deg, rgba(16, 16, 18, 0.93) 0, rgba(16, 16, 18, 0.9) calc(100% - 168px), rgba(16, 16, 18, 0) calc(100% - 96px));
  }
  /* industries: the 280px canvas strip must stay clear (the zones are played in it), so the scrim starts below the strip and is full by 340px from the top */
  .hero--page[data-scene="industries"]::before {
    background: linear-gradient(0deg, var(--bg) 0, rgba(16, 16, 18, 0) 56px),
      linear-gradient(0deg, rgba(16, 16, 18, 0.93) 0, rgba(16, 16, 18, 0.9) calc(100% - 340px), rgba(16, 16, 18, 0) calc(100% - 280px));
  }
  .hero--page[data-scene] .hero__ctl { right: auto; left: var(--pad); top: 14px; bottom: auto; }
  .hero--page[data-scene] .stage-canvas--ambient { bottom: auto; height: 280px; }
}

/* photo hero (only when a real photo exists; markup must not reference a missing file) */
.hero--photo { background: var(--bg); }
.hero__photo { position: absolute; inset: 0; z-index: 0; }
.hero__photo img { width: 100%; height: 100%; object-fit: cover; }
.hero__photo::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--bg) 0, rgba(16, 16, 18, .82) 45%, rgba(16, 16, 18, .55));
}

.h1--hero {
  font-size: clamp(34px, 7.4vw, 64px);
  line-height: 1.4;
  letter-spacing: -0.01em;
  font-weight: 700;
  text-wrap: balance;
  overflow-wrap: anywhere;
  padding-block: .1em;
  max-width: 20ch;
}
/* phrase clip wrappers: the phrase rises out of its clip; Thai is never split below the authored phrase */
.nbc { display: inline-block; vertical-align: top; overflow: hidden; padding-block: .18em; margin-block: -.18em; max-width: 100%; }
.h1--hero .nb { display: inline-block; }
@keyframes nbrise { from { transform: translateY(115%); } to { transform: none; } }
@keyframes herorise { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.js .nbc .nb { animation: nbrise 600ms var(--ease) both; }
.js .nbc:nth-of-type(1) .nb { animation-delay: 120ms; }
.js .nbc:nth-of-type(2) .nb { animation-delay: 240ms; }
.js .nbc:nth-of-type(3) .nb { animation-delay: 360ms; }
.js .hero__sub { animation: herorise 600ms var(--ease) 600ms both; }
.js .hero:not(.hero--page) .lead { animation: herorise 600ms var(--ease) 760ms both; }
.js .hero:not(.hero--page) .btn-row { animation: herorise 600ms var(--ease) 900ms both; }
.hero__sub {
  margin-top: 8px;
  font-weight: 600;
  font-size: clamp(20px, 3vw, 28px);
  line-height: 1.5;
  color: var(--text);
}

/* ---------- console mock (platform.html) ---------- */
.console {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.console__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 15px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--line);
  font-size: 12.5px;
  color: var(--muted);
}
.console__dot { width: 9px; height: 9px; border-radius: 50%; background: var(--offline); flex: none; }
.console__dot--live { background: var(--red); box-shadow: 0 0 0 0 var(--red-line); animation: pulse 2.2s infinite; }
@keyframes pulse {
  70%  { box-shadow: 0 0 0 9px rgba(192, 0, 0, 0); }
  100% { box-shadow: 0 0 0 0 rgba(192, 0, 0, 0); }
}
.console__body { padding: 15px; display: grid; gap: 11px; }

.tiles { display: grid; grid-template-columns: repeat(4, 1fr); gap: 9px; }
.tile {
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 12px 11px;
  text-align: center;
}
.tile b { display: block; font-size: 21px; font-weight: 700; line-height: 1.2; }
.tile span { font-size: 11.5px; color: var(--muted); letter-spacing: 0.02em; }
.tile--ok b   { color: var(--ok); }
.tile--warn b { color: var(--warn); }
.tile--crit b { color: var(--crit); }
.tile--off b  { color: var(--offline); }

.evt {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 11px 13px;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-left-width: 3px;
  border-radius: var(--radius-sm);
  font-size: 14px;
}
.evt--crit { border-left-color: var(--crit); }
.evt--warn { border-left-color: var(--warn); }
.evt--ok   { border-left-color: var(--ok); }
.evt time { margin-left: auto; color: var(--muted); font-size: 12.5px; font-family: var(--mono); flex: none; }
.evt__src { color: var(--muted); font-size: 12.5px; }

/* ---------- cards ---------- */
.grid { display: grid; gap: 20px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px;
  transition: border-color .22s var(--ease), transform .22s var(--ease);
}
.card:hover { border-color: var(--red-line); transform: translateY(-3px); }
.card h2, .card h3 { margin-bottom: 10px; }
.card p { color: var(--text-2); font-size: 15.5px; line-height: 1.72; }

.card__icon {
  width: 42px; height: 42px;
  border-radius: 11px;
  background: var(--red-dim);
  border: 1px solid var(--red-line);
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  color: var(--red-bright);
}
.card__icon svg { width: 21px; height: 21px; }

.card--flat { background: transparent; }
.card--flat:hover { transform: none; }

.card--quiet { display: block; }
.card--quiet:hover { border-color: var(--line); transform: translateY(-2px); }

/* numbered step */
.step__no {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--red-text);
  letter-spacing: 0.08em;
  margin-bottom: 12px;
  display: block;
}

/* ---------- feature list ---------- */
.checks { display: grid; gap: 13px; margin-top: 26px; }
.checks li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 15.5px;
  color: var(--text-2);
  line-height: 1.68;
}
.checks li::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 2px;
  background: var(--red);
  flex: none;
  margin-top: 10px;
}

/* ---------- split ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}

/* ---------- vendor chips ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  padding: 9px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  font-size: 15px;
  color: var(--text-2);
  transition: border-color .2s var(--ease), color .2s var(--ease);
}
.chip:hover { border-color: var(--red-line); color: #fff; }
.chip--soon { opacity: 0.55; }
.chip--dev { border-color: rgba(245, 165, 36, .4); color: var(--warn); }

/* ---------- table ---------- */
.tablewrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  -webkit-overflow-scrolling: touch;
}
table { width: 100%; border-collapse: collapse; min-width: 620px; }
th, td {
  padding: 15px 20px;
  text-align: left;
  font-size: 15px;
  border-bottom: 1px solid var(--line);
}
th {
  background: var(--surface-2);
  font-weight: 600;
  font-size: 13.5px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover td { background: rgba(255, 255, 255, 0.02); }
td b { font-weight: 600; }

.pill {
  display: inline-block;
  padding: 3px 11px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
  white-space: nowrap;
}
.pill--ok   { background: rgba(18, 183, 106, 0.14); color: #35D48D; }
.pill--dev  { background: rgba(245, 165, 36, 0.14); color: var(--warn); }
.pill--plan { background: rgba(255, 255, 255, 0.07); color: #A6A6B0; }

/* ---------- status palette legend ---------- */
.legend { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 24px; }
.legend div { display: flex; align-items: center; gap: 9px; font-size: 14.5px; color: var(--text-2); }
.legend i { width: 13px; height: 13px; border-radius: 4px; flex: none; }

/* ---------- CTA band ---------- */
.cta {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(34px, 5vw, 56px);
  text-align: center;
}
.cta .lead { margin-inline: auto; margin-top: 14px; }
.cta .btn-row { justify-content: center; }

/* ---------- form ---------- */
.form { display: grid; gap: 17px; }
.form[hidden] { display: none; }
.field { display: grid; gap: 7px; }
.field label { font-size: 14.5px; font-weight: 600; color: var(--text-2); }
.field input, .field textarea, .field select {
  width: 100%;
  padding: 13px 15px;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--text);
  font: inherit;
  font-size: 16px;
  transition: border-color .18s var(--ease);
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--red);
}
.field textarea { resize: vertical; min-height: 130px; }
.field--2 { display: grid; grid-template-columns: 1fr 1fr; gap: 17px; }

.formnote {
  font-size: 13.5px;
  color: var(--muted);
  border-left: 2px solid var(--red);
  padding-left: 13px;
  line-height: 1.6;
}
.formnote a { text-decoration: underline; }

/* ---------- contact rows ---------- */
.contactlist { display: grid; gap: 20px; }
.contactrow { display: flex; gap: 14px; align-items: flex-start; }
.contactrow .card__icon { margin-bottom: 0; flex: none; width: 38px; height: 38px; }
.contactrow strong { display: block; font-size: 14px; color: var(--muted); font-weight: 600; }
.contactrow a, .contactrow p { font-size: 16px; color: var(--text); }
.contactrow a:hover { color: var(--red-bright); }
.pending { font-style: italic; color: var(--muted); }

/* ---------- footer ---------- */
.ftr {
  background: var(--bg-alt);
  border-top: 1px solid var(--line-soft);
  padding-block: 54px 30px;
}
.ftr__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 34px;
}
.ftr h4 {
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 15px;
  font-weight: 600;
}
.ftr ul { display: grid; gap: 10px; }
.ftr ul a { font-size: 15px; color: var(--text-2); }
.ftr ul a:hover { color: var(--red-bright); }
.ftr__about { font-size: 14.5px; color: var(--muted); max-width: 34ch; margin-top: 15px; line-height: 1.7; }
.ftr__bottom {
  margin-top: 42px;
  padding-top: 22px;
  border-top: 1px solid var(--line-soft);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13.5px;
  color: var(--muted);
}

/* ---------- reveal on scroll ---------- */
.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}
.js .reveal.is-in { opacity: 1; transform: none; }

/* ---------- architecture diagram (platform.html) ---------- */
.archdiagram { display: grid; gap: 0; max-width: 820px; margin-inline: auto; }
.arch-layer {
  display: flex;
  gap: 22px;
  align-items: flex-start;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px 26px;
}
.arch-layer--core {
  border-color: var(--red-line);
  background: linear-gradient(180deg, rgba(192, 0, 0, 0.10), var(--surface) 70%);
  box-shadow: 0 0 0 1px var(--red-line) inset, 0 14px 40px rgba(192, 0, 0, 0.10);
}
.arch-num {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--red-text);
  border: 1px solid var(--red-line);
  border-radius: 999px;
  padding: 7px 13px;
  white-space: nowrap;
  flex: none;
  margin-top: 3px;
}
.arch-body h3 { margin-bottom: 8px; }
.arch-body p { color: var(--text-2); font-size: 15px; line-height: 1.68; margin: 0; }
.arch-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 14px; }
.arch-tag {
  font-size: 12.5px;
  color: var(--text-2);
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 4px 10px;
}
.arch-flow {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 30px;
  padding: 11px 0;
}
.arch-flow b { display: inline-flex; align-items: center; gap: 7px; font-weight: 500; font-size: 13px; color: var(--muted); }
.arch-flow .up { color: var(--red-text); }
.arch-flow svg { width: 14px; height: 14px; flex: none; }

/* ---------- incident flow demo (index.html) ----------
   data-step on .flow = how many steps are lit (0 = none, 6 = all lit: the static list and the no-JS default). */
.flow { --c: var(--ok); }
.flow[data-step="0"] { --c: var(--text-2); }
.flow[data-step="1"], .flow[data-step="2"], .flow[data-step="3"] { --c: var(--crit); }
.flow[data-step="4"] { --c: var(--warn); }
.flow[data-step="5"], .flow[data-step="6"] { --c: var(--ok); }

.flow__head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 22px; }
.flow__tag {
  font-size: 12.5px; font-weight: 600; letter-spacing: 0.08em; color: var(--muted);
  border: 1px solid var(--line); border-radius: 999px; padding: 4px 12px;
}
.flow__btn {
  min-height: 44px; padding: 0 20px; border-radius: 999px;
  border: 1px solid var(--line); background: transparent; color: var(--text);
  font: inherit; font-size: 15px; font-weight: 600; cursor: pointer;
  transition: border-color .2s var(--ease), background .2s var(--ease);
}
.flow__btn:hover { border-color: var(--muted); background: rgba(255, 255, 255, 0.05); }
.flow__btn[hidden] { display: none; }

.flow__steps { list-style: none; margin: 0; padding: 0; max-width: 640px; margin-inline: auto; }
.flow__step {
  --c: var(--crit);
  position: relative;
  padding: 0 0 26px 56px;
  min-height: 24px;
  line-height: var(--lh-th);
  opacity: .6;
  transition: opacity 350ms var(--ease);
}
.flow__step:last-child { padding-bottom: 0; }
.flow__step--crit { --c: var(--crit); }
.flow__step--warn { --c: var(--warn); }
.flow__step--ok { --c: var(--ok); }
.flow__step b { display: block; font-weight: 600; font-size: 17px; color: var(--text); line-height: var(--lh-th); }
.flow__step > span:last-child { display: block; font-size: 15px; color: var(--text-2); margin-top: 2px; white-space: normal; }

.flow__node {
  position: absolute; left: 0; top: 0;
  width: 24px; height: 24px; border-radius: 50%;
  border: 2px solid var(--line); background: var(--bg);
  display: grid; place-items: center; color: var(--muted);
  transition: border-color 350ms var(--ease), color 350ms var(--ease), background 350ms var(--ease);
}
.flow__node svg { width: 12px; height: 12px; }

.flow__line {
  position: absolute; left: 11px; top: 24px; bottom: 0; width: 2px;
  background: var(--line); overflow: hidden;
}
.flow__line::after {
  content: ""; position: absolute; inset: 0; background: var(--c);
  transform: scaleY(0); transform-origin: top;
  transition: transform 1000ms linear;
}
.flow__step:last-child .flow__line { display: none; }
.flow[data-step="0"] .flow__line::after { transition-duration: 500ms; }

.flow[data-step="1"] .flow__step[data-n="1"],
.flow[data-step="2"] .flow__step[data-n="1"],
.flow[data-step="3"] .flow__step[data-n="1"],
.flow[data-step="4"] .flow__step[data-n="1"],
.flow[data-step="5"] .flow__step[data-n="1"] { opacity: 1; }
.flow[data-step="2"] .flow__step[data-n="2"],
.flow[data-step="3"] .flow__step[data-n="2"],
.flow[data-step="4"] .flow__step[data-n="2"],
.flow[data-step="5"] .flow__step[data-n="2"] { opacity: 1; }
.flow[data-step="3"] .flow__step[data-n="3"],
.flow[data-step="4"] .flow__step[data-n="3"],
.flow[data-step="5"] .flow__step[data-n="3"] { opacity: 1; }
.flow[data-step="4"] .flow__step[data-n="4"],
.flow[data-step="5"] .flow__step[data-n="4"] { opacity: 1; }
.flow[data-step="5"] .flow__step[data-n="5"] { opacity: 1; }
.flow[data-step="1"] .flow__step[data-n="1"] .flow__node,
.flow[data-step="2"] .flow__step[data-n="1"] .flow__node,
.flow[data-step="3"] .flow__step[data-n="1"] .flow__node,
.flow[data-step="4"] .flow__step[data-n="1"] .flow__node,
.flow[data-step="5"] .flow__step[data-n="1"] .flow__node { border-color: var(--c); color: var(--c); }
.flow[data-step="2"] .flow__step[data-n="2"] .flow__node,
.flow[data-step="3"] .flow__step[data-n="2"] .flow__node,
.flow[data-step="4"] .flow__step[data-n="2"] .flow__node,
.flow[data-step="5"] .flow__step[data-n="2"] .flow__node { border-color: var(--c); color: var(--c); }
.flow[data-step="3"] .flow__step[data-n="3"] .flow__node,
.flow[data-step="4"] .flow__step[data-n="3"] .flow__node,
.flow[data-step="5"] .flow__step[data-n="3"] .flow__node { border-color: var(--c); color: var(--c); }
.flow[data-step="4"] .flow__step[data-n="4"] .flow__node,
.flow[data-step="5"] .flow__step[data-n="4"] .flow__node { border-color: var(--c); color: var(--c); }
.flow[data-step="5"] .flow__step[data-n="5"] .flow__node { border-color: var(--c); color: var(--c); }
.flow[data-step="2"] .flow__step[data-n="1"] .flow__line::after,
.flow[data-step="3"] .flow__step[data-n="1"] .flow__line::after,
.flow[data-step="4"] .flow__step[data-n="1"] .flow__line::after,
.flow[data-step="5"] .flow__step[data-n="1"] .flow__line::after { transform: scaleY(1); }
.flow[data-step="3"] .flow__step[data-n="2"] .flow__line::after,
.flow[data-step="4"] .flow__step[data-n="2"] .flow__line::after,
.flow[data-step="5"] .flow__step[data-n="2"] .flow__line::after { transform: scaleY(1); }
.flow[data-step="4"] .flow__step[data-n="3"] .flow__line::after,
.flow[data-step="5"] .flow__step[data-n="3"] .flow__line::after { transform: scaleY(1); }
.flow[data-step="5"] .flow__step[data-n="4"] .flow__line::after { transform: scaleY(1); }

/* data-step 6 = whole list lit (static list, and the no-JS default) */
.flow[data-step="6"] .flow__step { opacity: 1; }
.flow[data-step="6"] .flow__step .flow__node { border-color: var(--c); color: var(--c); }
.flow[data-step="6"] .flow__step .flow__line::after { transform: scaleY(1); }

@keyframes flowpulse {
  0%   { box-shadow: 0 0 0 0 rgba(192, 0, 0, 0.55); }
  100% { box-shadow: 0 0 0 12px rgba(192, 0, 0, 0); }
}
.flow[data-step="1"] .flow__step[data-n="1"] .flow__node { animation: flowpulse 1.2s ease-out 1; }

.flow__evt {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px;
  max-width: 640px; margin: 28px auto 0;
  padding: 14px 16px;
  background: var(--surface); border: 1px solid var(--line);
  border-left: 3px solid var(--c); border-radius: var(--radius-sm);
  font-size: 15px; line-height: var(--lh-th);
  transition: border-left-color 350ms var(--ease);
}
.flow__msgs { display: grid; flex: 1 1 220px; min-width: 0; }
.flow__msg {
  grid-area: 1 / 1; opacity: 0; visibility: hidden;
  transition: opacity 250ms var(--ease), visibility 0s linear 250ms;
}
.flow[data-step="1"] .flow__msg[data-n="1"],
.flow[data-step="2"] .flow__msg[data-n="2"],
.flow[data-step="3"] .flow__msg[data-n="3"],
.flow[data-step="4"] .flow__msg[data-n="4"],
.flow[data-step="5"] .flow__msg[data-n="5"],
.flow[data-step="6"] .flow__msg[data-n="6"] { opacity: 1; visibility: visible; transition-delay: 0s; }
.flow[data-step="6"] .flow__src { display: none; }
.flow__src { color: var(--muted); font-size: 12.5px; font-family: var(--mono); flex: none; }

@media (min-width: 1000px) {
  .flow__steps { display: grid; grid-template-columns: repeat(6, 1fr); max-width: none; gap: 0; }
  .flow__step { padding: 38px 10px 0; text-align: center; }
  .flow__step:last-child { padding-bottom: 0; }
  .flow__node { left: 50%; margin-left: -12px; }
  .flow__line { left: calc(50% + 12px); right: auto; width: calc(100% - 24px); top: 11px; bottom: auto; height: 2px; }
  .flow__line::after { transform: scaleX(0); transform-origin: left; }
  .flow__evt { max-width: none; margin-top: 30px; }
  .flow[data-step="2"] .flow__step[data-n="1"] .flow__line::after,
  .flow[data-step="3"] .flow__step[data-n="1"] .flow__line::after,
  .flow[data-step="4"] .flow__step[data-n="1"] .flow__line::after,
  .flow[data-step="5"] .flow__step[data-n="1"] .flow__line::after { transform: scaleX(1); }
  .flow[data-step="3"] .flow__step[data-n="2"] .flow__line::after,
  .flow[data-step="4"] .flow__step[data-n="2"] .flow__line::after,
  .flow[data-step="5"] .flow__step[data-n="2"] .flow__line::after { transform: scaleX(1); }
  .flow[data-step="4"] .flow__step[data-n="3"] .flow__line::after,
  .flow[data-step="5"] .flow__step[data-n="3"] .flow__line::after { transform: scaleX(1); }
  .flow[data-step="5"] .flow__step[data-n="4"] .flow__line::after { transform: scaleX(1); }
  .flow[data-step="6"] .flow__step .flow__line::after { transform: scaleX(1); }
}

@media (prefers-reduced-motion: reduce) {
  .flow *, .flow *::before, .flow *::after { transition: none !important; animation: none !important; }
  .flow__step { opacity: 1; }
  .flow__node { border-color: var(--c); color: var(--c); }
  .flow__line::after { transform: none; }
}

/* ---------- scroll stage (class added by JS only, once the canvas is running) ---------- */
.stage-canvas {
  position: fixed; inset: 0; z-index: -1; display: block;
  width: 100%; height: 100%;
  background: var(--bg);
  opacity: 0; transition: opacity .5s var(--ease);
  pointer-events: none;
}
.stage-canvas.is-on { opacity: 1; }
/* canvas lost and not restored yet: the poster stands in for the live scene */
.stage-lost .flow-stage { background: var(--bg) url(img/city-poster-1600.webp) center / cover no-repeat fixed; }
@media (max-width: 800px) {
  .stage-lost .flow-stage { background-image: url(img/city-poster-800.webp); background-attachment: scroll; background-position: 50% 22%; }
}

.section--solid { background: var(--bg); }
.flow__tag { background: rgba(16, 16, 18, 0.72); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
.flow__chips { display: none; }
.flow__intro { max-width: 70ch; margin-bottom: 40px; }
.flow__intro .lead { margin-top: 16px; }
.flow-stage { position: relative; background: transparent; padding-block: 0 28px; }
.flow-stage::before { content: ""; position: absolute; inset: 0; background: var(--scrim); pointer-events: none; }
.flow-stage > .wrap { position: relative; max-width: none; padding-inline: 0; }
.flow-stage > .wrap > .flow__note { margin-left: var(--L); margin-right: var(--pad); }

.flow-stage .flow { height: 600vh; height: 600svh; }
.flow-stage .flow__pin {
  position: sticky; top: 70px;
  height: calc(100vh - 70px); height: calc(100svh - 70px);
  display: flex; flex-direction: column;
  padding: 18px var(--pad) 28px var(--L);
  pointer-events: none;
}
.flow-stage .flow__btn { pointer-events: auto; }
.flow-stage .flow__head { margin-bottom: 0; }
.flow-stage .flow .flow__steps {
  display: block; position: relative; flex: 1 1 auto; min-height: 0;
  max-width: none; margin: 0; padding: 0;
}
.flow-stage .flow .flow__step,
.flow-stage .flow .flow__intro {
  position: absolute; left: 0; top: 50%;
  width: var(--pw); margin: 0; padding: 26px 30px 30px;
  background: rgba(16, 16, 18, 0.72);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  border: 1px solid var(--line-soft); border-radius: var(--radius);
  text-align: left; line-height: var(--lh-th);
  pointer-events: none;
}
/* the intro card is a child of the pin (not of the list), so it takes the pin's left padding itself */
.flow-stage .flow .flow__intro { left: var(--L); top: calc(50% + 14px); max-width: none; }
.flow-stage .flow .flow__intro .h2 { font-size: clamp(26px, 3.3vw, 44px); line-height: 1.3; text-wrap: balance; }
.flow-stage .flow .flow__intro .lead { font-size: 17px; line-height: 1.7; color: var(--text-2); margin-top: 12px; }
/* hidden panels stay in the accessibility tree (opacity only) so a screen reader can reach every step */
.flow-stage .flow .flow__steps .flow__step:not(.is-active),
.flow-stage .flow:not([data-step="0"]) .flow__intro {
  opacity: 0;
  transform: translateY(-50%) translateY(14px);
  transition: opacity 200ms var(--ease), transform 200ms var(--ease);
}
.flow-stage .flow .flow__steps .flow__step.is-active,
.flow-stage .flow[data-step="0"] .flow__intro {
  opacity: 1;
  transform: translateY(-50%) translateY(0);
  transition: opacity 350ms var(--ease) 150ms, transform 350ms var(--ease) 150ms;
}
.flow-stage .flow__node, .flow-stage .flow__line, .flow-stage .flow__evt { display: none; }
.flow-stage .flow__step::before {
  content: "0" attr(data-n);
  display: block; margin-bottom: 14px;
  font-family: var(--mono); font-size: 13px; font-weight: 600; letter-spacing: 0.08em; line-height: 1;
  color: var(--red-text);
}
.flow-stage .flow__step b { font-size: clamp(28px, 5vw, 56px); font-weight: 700; line-height: 1.3; letter-spacing: -0.01em; text-wrap: balance; }
.flow-stage .flow__step[data-n="6"] b { font-size: clamp(34px, 6.4vw, 72px); }
.flow-stage .flow__step > span:last-child { font-size: 17px; line-height: 1.7; color: var(--text-2); margin-top: 12px; }

.flow-stage .flow__chips { display: flex; flex-wrap: wrap; gap: 8px 10px; margin-top: 16px; }
.flow__chip {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 6px 14px; border: 1px solid var(--line); border-radius: 999px;
  background: rgba(16, 16, 18, 0.72);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  font-size: 14.5px; font-weight: 600; line-height: 1.5; color: var(--text);
}
.flow__chip::before { content: ""; width: 10px; height: 10px; border-radius: 50%; background: var(--c); flex: none; }
.flow__chip--off::before { background: var(--offline); }
.flow__chip--ok::before { background: var(--ok); }
/* state is also told by shape, not colour alone: triangle = critical, ring = watch, dot = calm */
.flow[data-step="1"] .flow__state::before, .flow[data-step="2"] .flow__state::before, .flow[data-step="3"] .flow__state::before {
  border-radius: 0; clip-path: polygon(50% 0, 100% 100%, 0 100%);
}
.flow[data-step="4"] .flow__state::before { background: transparent; border: 2px solid var(--c); }
.flow__chip:empty { display: none; }
.flow[data-step="6"] .flow__state { display: none; }
.flow:not([data-step="6"]) .flow__ext, .flow:not([data-step="6"]) .flow__int { display: none; }
.flow-stage .flow__btn, .hero__ctl .flow__btn { background: rgba(16, 16, 18, 0.72); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
.flow-stage .flow__btn:hover, .hero__ctl .flow__btn:hover { background: linear-gradient(rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.05)), rgba(16, 16, 18, 0.72); }

@media (max-width: 700px) {
  .flow-stage .flow { height: 480vh; height: 480svh; }
  .flow-stage .flow__pin { padding: 12px var(--pad) 0; }
  .flow-stage .flow__chips { order: 2; margin-top: 10px; }
  .flow-stage .flow__chip { font-size: 13.5px; padding: 4px 11px; }
  .flow-stage .flow__chips { gap: 6px 8px; }
  .flow-stage .flow .flow__steps { order: 3; }
  .flow-stage::before { background: none; }
  .flow-stage .flow .flow__step,
  .flow-stage .flow .flow__intro {
    left: calc(-1 * var(--pad)); right: calc(-1 * var(--pad)); width: auto;
    top: auto; bottom: 0; max-height: 62vh; max-height: 62svh; overflow-y: auto;
    padding: 22px var(--pad) calc(26px + env(safe-area-inset-bottom, 0px));
    background: rgba(16, 16, 18, 0.90);
    border-radius: var(--radius) var(--radius) 0 0; border-width: 1px 0 0;
  }
  .flow-stage .flow .flow__intro { left: 0; right: 0; position: absolute; top: auto; bottom: 0; }
  /* the card can scroll (max-height + overflow-y), so the visible one must receive pointer events */
  .flow-stage .flow .flow__steps .flow__step.is-active,
  .flow-stage .flow[data-step="0"] .flow__intro { pointer-events: auto; }
  .flow-stage .flow .flow__steps .flow__step:not(.is-active),
  .flow-stage .flow:not([data-step="0"]) .flow__intro { transform: translateY(14px); }
  .flow-stage .flow .flow__steps .flow__step.is-active,
  .flow-stage .flow[data-step="0"] .flow__intro { transform: none; }
  .flow-stage .flow__step[data-n="6"] b { font-size: clamp(32px, 9vw, 40px); }
}
@media (min-width: 701px) and (max-width: 900px) {
  .flow-stage .flow .flow__step { width: min(var(--pw), 440px); }
}
/* short landscape windows (a phone on its side): the card is capped to the list area and scrolls,
   so it can never cover the status chips below it */
@media (min-width: 701px) and (max-height: 560px) {
  .flow-stage .flow .flow__step { max-height: 100%; overflow-y: auto; padding: 14px 20px 16px; }
  .flow-stage .flow .flow__intro { max-height: calc(100% - 60px); overflow-y: auto; padding: 14px 20px 16px; }
  .flow-stage .flow .flow__steps .flow__step.is-active,
  .flow-stage .flow[data-step="0"] .flow__intro { pointer-events: auto; }
  .flow-stage .flow__step::before { margin-bottom: 8px; }
  .flow-stage .flow__step b { font-size: clamp(20px, 6vh, 30px); line-height: 1.3; }
  .flow-stage .flow__step[data-n="6"] b { font-size: clamp(22px, 7vh, 34px); }
  .flow-stage .flow__step > span:last-child { font-size: 15px; line-height: 1.55; margin-top: 6px; }
  .flow-stage .flow .flow__intro .h2 { font-size: clamp(20px, 6vh, 28px); }
  .flow-stage .flow .flow__intro .lead { font-size: 15px; line-height: 1.55; margin-top: 6px; }
  .flow-stage .flow__chips { margin-top: 8px; }
  .flow-stage .flow__pin { padding-top: 10px; padding-bottom: 14px; }
}

/* ---------- shared inner-page polish (CSS part; site.js adds --i and .is-in). Inner pages only; all off under reduced motion ---------- */
.hero--page ~ .section .card { box-shadow: inset 0 1px 0 rgba(198, 198, 204, 0.1); }
.hero--page ~ .section .card:focus-within:not(:hover) { border-color: rgba(198, 198, 204, 0.5); box-shadow: inset 0 1px 0 rgba(198, 198, 204, 0.22); }
@media (prefers-reduced-motion: no-preference) {
  .js .hero--page ~ .section .grid > .reveal.is-in { transition-delay: calc(var(--i, 0) * 60ms); }
  .js .hero--page ~ .section + .section { position: relative; }
  .js .hero--page ~ .section + .section::before,
  .js .hero--page ~ .section + .section::after {
    content: ""; position: absolute; top: 0; pointer-events: none;
    --e: max(var(--pad), calc((100% - var(--maxw)) / 2 + var(--pad)));
  }
  .js .hero--page ~ .section + .section::before {
    left: var(--e); right: var(--e); height: 1px; background: var(--line);
    transform: scaleX(0); transform-origin: 0 50%; transition: transform 900ms var(--ease);
  }
  .js .hero--page ~ .section + .section::after {
    right: var(--e); width: 5px; height: 5px; margin: -2px -2.5px 0 0; border-radius: 50%; background: var(--muted);
    opacity: 0; transition: opacity 300ms ease 800ms;
  }
  .js .hero--page ~ .section + .section.is-in::before { transform: scaleX(1); }
  .js .hero--page ~ .section + .section.is-in::after { opacity: 1; }
  /* platform architecture: layers fade in bottom to top, then the arrows draw once */
  @keyframes archin { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
  @keyframes archdash { from { stroke-dashoffset: 24; } to { stroke-dashoffset: 0; } }
  .js .archdiagram > * { opacity: 0; }
  .js .archdiagram.is-in > * { animation: archin 520ms var(--ease) both; animation-delay: var(--d, 0ms); }
  .js .archdiagram > :nth-child(5) { --d: 0ms; }
  .js .archdiagram > :nth-child(4) { --d: 110ms; }
  .js .archdiagram > :nth-child(3) { --d: 220ms; }
  .js .archdiagram > :nth-child(2) { --d: 330ms; }
  .js .archdiagram > :nth-child(1) { --d: 440ms; }
  .js .archdiagram.is-in .arch-flow path { stroke-dasharray: 24; animation: archdash 600ms var(--ease) both; animation-delay: calc(var(--d, 0ms) + 600ms); }
}

/* ---------- responsive ---------- */
@media (max-width: 940px) {
  .split { grid-template-columns: 1fr; }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .ftr__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 940px) {
  .hdr__in { gap: 12px; }
}

@media (min-width: 1021px) {
  .nav a[href="contact.html"] { display: none; }
}

@media (max-width: 1020px) {
  .burger { display: grid; }
  .hdr__cta .btn { display: none; }
  .nav {
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 14px var(--pad) 20px;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    max-height: calc(100vh - 70px);
    max-height: calc(100dvh - 70px);
    overflow-y: auto;
    display: none;
  }
  .nav.is-open { display: flex; }
  .nav a { padding: 12px 14px; font-size: 16.5px; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .grid--3, .grid--4, .grid--2 { grid-template-columns: 1fr; }
  .tiles { grid-template-columns: repeat(2, 1fr); }
  .field--2 { grid-template-columns: 1fr; }
  .ftr__grid { grid-template-columns: 1fr; }
  .btn { width: 100%; white-space: normal; }
  .btn-row { flex-direction: column; }
  .arch-layer { flex-direction: column; gap: 14px; padding: 20px; }
  .arch-flow { gap: 18px; }
}

/* ---------- focus visibility ---------- */
.btn:focus-visible,
.nav a:focus-visible,
.chip:focus-visible,
.logo:focus-visible,
a:focus-visible,
.flow__btn:focus-visible,
.field input:focus-visible,
.field textarea:focus-visible,
.field select:focus-visible,
.burger:focus-visible {
  outline: 2px solid var(--red-text);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  .js .reveal { opacity: 1; transform: none; }
  .js .nbc .nb, .js .hero__sub, .js .hero:not(.hero--page) .lead, .js .hero:not(.hero--page) .btn-row { animation: none; }
}

/* ---------- form validation (contact) ---------- */
.ferr { font-size: 13.5px; color: var(--red-text); line-height: 1.5; }
.field input.is-invalid, .field textarea.is-invalid { border-color: var(--red); }

/* ---------- header: language switcher fit ---------- */
/* 1021-1100px: the desktop nav plus the switcher is tight, so the nav links give up a little padding */
@media (min-width: 1021px) and (max-width: 1100px) {
  .nav a { padding: 8px 11px; }
}
/* narrow phones: logo + switcher + burger must fit in 320px */
@media (max-width: 400px) {
  .hdr__in { gap: 6px; }
  .hdr__cta { gap: 6px; }
  .lang a { padding: 8px 9px; }
}

/* ---------- English pages ---------- */
/* Latin text needs the Latin face first and tighter leading than Thai */
html[lang="en"] { --font: "IBM Plex Sans", "IBM Plex Sans Thai", -apple-system, sans-serif; }
html[lang="en"] body { line-height: 1.55; }
html[lang="en"] .h1--hero {
  font-size: clamp(34px, 6.6vw, 60px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  overflow-wrap: normal;
}
html[lang="en"] .nav a { white-space: nowrap; }