@import url('https://fonts.googleapis.com/css2?family=Literata:opsz,wght@7..72,400;7..72,600;7..72,700&family=Teko:wght@500;600;700&display=swap');

/* Gatehouse: keep high-vis SAFETY yellow; retune everything else.
   Yellow snapshot also in thuthuka-nathi-site-gatehouse-checkpoint. */

:root {
  /* Structure / surfaces (changed) */
  --asphalt: #0c1220;
  --tar: #151c2c;
  --chalk: #eef1f5;
  --panel: #ffffff;
  --dust: #a7b0bd;
  --mute: #5a6573;
  --oxide: #8f4e3c;
  /* Safety language (kept) */
  --signal: #f5d000;
  --max: 1100px;
  --rail: 72px;
  --display: "Teko", sans-serif;
  --text: "Literata", Georgia, serif;
}

* { box-sizing: border-box }
html { scroll-behavior: smooth }
body {
  margin: 0;
  background: var(--chalk);
  color: var(--asphalt);
  font-family: var(--text);
  font-size: 17px;
  line-height: 1.65;
}
img { max-width: 100%; display: block }
a { color: inherit; text-decoration: none }
button, input, select, textarea { font: inherit }
button { cursor: pointer }

.skip {
  position: fixed; top: 8px; left: calc(var(--rail) + 8px); z-index: 200;
  padding: 0.55rem 0.9rem; background: var(--signal); color: var(--asphalt);
  font-family: var(--display); letter-spacing: 0.06em; text-transform: uppercase;
  transform: translateY(-160%);
}
.skip:focus { transform: none }

/* —— Side rail (not a top sticky header) —— */
.rail {
  position: fixed; inset: 0 auto 0 0; width: var(--rail); z-index: 100;
  background: var(--asphalt); color: var(--chalk);
  display: flex; flex-direction: column; align-items: center;
  padding: 18px 0 20px; gap: 18px;
}
.rail-logo {
  width: 48px; height: 48px; object-fit: contain;
  background: var(--chalk); padding: 4px;
}
.rail-toggle {
  display: none; border: 0; background: var(--signal); color: var(--asphalt);
  width: 40px; height: 40px; font-family: var(--display); font-size: 1.4rem;
}
.rail-nav {
  display: flex; flex-direction: column; align-items: center; gap: 0.35rem;
  flex: 1; width: 100%;
}
.rail-nav a {
  writing-mode: vertical-rl; transform: rotate(180deg);
  font-family: var(--display); font-size: 1.05rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--dust); padding: 12px 0;
  border-left: 3px solid transparent; width: 100%;
  display: flex; align-items: center; justify-content: center;
}
.rail-nav a:hover, .rail-nav a.active {
  color: var(--signal); border-left-color: var(--signal);
}
.rail-quote {
  writing-mode: vertical-rl; transform: rotate(180deg);
  font-family: var(--display); font-size: 0.95rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--signal); padding: 10px 0;
}

.shell { margin-left: var(--rail); min-height: 100vh }

.wrap { width: min(calc(100% - 40px), var(--max)); margin: 0 auto }
.wrap-wide { width: min(calc(100% - 40px), 1280px); margin: 0 auto }

.stamp {
  display: inline-block;
  font-family: var(--display); font-size: 0.95rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--oxide);
  border: 2px solid var(--oxide); padding: 0.15rem 0.55rem;
  transform: rotate(-2deg);
}
.stamp.ok { color: var(--asphalt); border-color: var(--asphalt) }
.stamp.warn { color: #5c4a00; border-color: var(--signal); background: rgba(245,208,0,0.22) }

.mark {
  font-family: var(--display); font-size: 0.9rem; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--mute);
}

.hazard {
  height: 14px;
  background: repeating-linear-gradient(
    -45deg,
    var(--asphalt), var(--asphalt) 10px,
    var(--signal) 10px, var(--signal) 20px
  );
}

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 52px; padding: 0 1.4rem;
  background: var(--signal); color: var(--asphalt); border: 0;
  font-family: var(--display); font-size: 1.25rem; letter-spacing: 0.08em;
  text-transform: uppercase; font-weight: 600;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
  transition: filter 0.2s, transform 0.2s;
}
.btn:hover { filter: brightness(1.05); transform: translateY(-1px) }
.btn.chalk {
  background: var(--chalk); color: var(--asphalt);
}
.btn.ghost-dark {
  background: transparent; color: var(--chalk);
  box-shadow: inset 0 0 0 2px var(--chalk);
  clip-path: none;
}

/* —— Hero: full-bleed, brand as giant watermark —— */
.gate {
  position: relative; min-height: 100vh; color: var(--chalk);
  display: grid; align-content: end; overflow: hidden;
  background: var(--asphalt);
}
.gate-shot {
  position: absolute; inset: 0;
}
.gate-shot img {
  width: 100%; height: 100%; object-fit: cover;
  filter: grayscale(0.35) contrast(1.1) brightness(0.55);
  animation: pan 28s linear infinite alternate;
}
@keyframes pan {
  from { transform: scale(1.08) translateX(0) }
  to { transform: scale(1.12) translateX(-2%) }
}
.gate-shot::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(30,30,28,0.92) 0%, rgba(30,30,28,0.35) 55%, rgba(30,30,28,0.55) 100%),
    linear-gradient(0deg, rgba(30,30,28,0.95) 0%, transparent 42%);
}
.gate-wm {
  position: absolute; z-index: 1; left: -2%; bottom: -6%;
  font-family: var(--display); font-weight: 700;
  font-size: clamp(8rem, 28vw, 22rem); line-height: 0.75;
  letter-spacing: -0.04em; text-transform: uppercase;
  color: rgba(245, 208, 0, 0.08); pointer-events: none; white-space: nowrap;
}
.gate-body {
  position: relative; z-index: 2;
  padding: 48px 0 56px;
  width: min(calc(100% - 48px), 720px);
  margin-left: 40px;
}
.gate-body .brand-line {
  font-family: var(--display); font-size: clamp(1.4rem, 3vw, 2rem);
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--signal);
  margin-bottom: 1rem;
  animation: slam 0.55s cubic-bezier(0.2, 0.9, 0.2, 1) both;
}
.gate h1 {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(3.2rem, 9vw, 6.5rem); line-height: 0.88;
  letter-spacing: -0.01em; text-transform: uppercase; margin: 0 0 1.1rem;
  animation: slam 0.55s 0.08s cubic-bezier(0.2, 0.9, 0.2, 1) both;
}
.gate h1 em {
  font-style: normal; display: block; color: var(--signal);
}
.gate .deck {
  font-size: 1.05rem; color: var(--dust); max-width: 34rem; margin: 0 0 1.6rem;
  animation: slam 0.55s 0.16s cubic-bezier(0.2, 0.9, 0.2, 1) both;
}
.gate .actions {
  display: flex; flex-wrap: wrap; gap: 0.7rem;
  animation: slam 0.55s 0.24s cubic-bezier(0.2, 0.9, 0.2, 1) both;
}
.gate .site-tags {
  margin-top: 2rem; font-family: var(--display); font-size: 1.1rem;
  letter-spacing: 0.16em; text-transform: uppercase; color: rgba(240,239,232,0.45);
  animation: slam 0.55s 0.32s cubic-bezier(0.2, 0.9, 0.2, 1) both;
}
@keyframes slam {
  from { opacity: 0; transform: translateX(-28px) }
  to { opacity: 1; transform: none }
}

/* —— Top ticker (replaces metric strip) —— */
.ticker {
  background: var(--signal); color: var(--asphalt); overflow: hidden;
  border-bottom: 4px solid var(--asphalt);
}
.ticker-track {
  display: flex; gap: 3rem; width: max-content;
  padding: 0.7rem 0;
  font-family: var(--display); font-size: 1.35rem; letter-spacing: 0.1em;
  text-transform: uppercase; font-weight: 600;
  animation: tick 28s linear infinite;
}
.ticker-track span::before {
  content: "◆"; margin-right: 3rem; opacity: 0.45;
}
@keyframes tick {
  from { transform: translateX(0) }
  to { transform: translateX(-50%) }
}

/* —— Chapters —— */
.chapter { padding: 88px 0 }
.chapter.dark { background: var(--asphalt); color: var(--chalk) }
.chapter.dark .deck, .chapter.dark p { color: var(--dust) }
.chapter.tar { background: var(--tar); color: var(--chalk) }

.chapter-head {
  display: grid; grid-template-columns: 120px 1fr; gap: 1.5rem;
  align-items: start; margin-bottom: 2.5rem;
}
.chapter-no {
  font-family: var(--display); font-size: 5rem; line-height: 0.8;
  color: var(--signal); font-weight: 700;
}
.chapter.dark .chapter-no, .chapter.tar .chapter-no { color: var(--signal) }
.chapter-head h2 {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(2.4rem, 5.5vw, 4rem); line-height: 0.95;
  text-transform: uppercase; letter-spacing: 0.01em; margin: 0 0 0.6rem;
}
.chapter-head p { margin: 0; max-width: 36rem; color: var(--mute) }
.chapter.dark .chapter-head p, .chapter.tar .chapter-head p { color: var(--dust) }

.split-note {
  display: grid; grid-template-columns: 1fr 280px; gap: 3rem; align-items: start;
}
.split-note .copy h2 {
  font-family: var(--display); font-size: clamp(2.6rem, 5vw, 4.2rem);
  line-height: 0.95; text-transform: uppercase; margin: 0.4rem 0 1rem;
}
.split-note .copy p { color: var(--mute); max-width: 38rem }
.plate {
  background: var(--asphalt); color: var(--chalk); padding: 1.5rem;
  border-top: 6px solid var(--signal);
  font-family: var(--display); text-transform: uppercase; letter-spacing: 0.06em;
}
.plate strong { display: block; font-size: 1.6rem; margin-bottom: 0.5rem }
.plate span { display: block; color: var(--dust); font-size: 1.05rem; line-height: 1.3 }

/* —— Service bands (full-width alternating) —— */
.bands { display: grid; gap: 0 }
.band {
  display: grid; grid-template-columns: 42% 1fr; min-height: 260px;
  background: var(--chalk); border-top: 1px solid rgba(12,18,32,0.1);
}
.band:nth-child(even) { direction: rtl }
.band:nth-child(even) > * { direction: ltr }
.band-shot { position: relative; overflow: hidden; min-height: 220px }
.band-shot img {
  width: 100%; height: 100%; object-fit: cover;
  filter: grayscale(0.2) contrast(1.05);
  transition: transform 0.7s ease;
}
.band:hover .band-shot img { transform: scale(1.05) }
.band-body {
  padding: 2rem 2.25rem; display: flex; flex-direction: column; justify-content: center;
  background: var(--panel);
}
.band:nth-child(odd) .band-body { background: var(--chalk) }
.band-body .idx {
  font-family: var(--display); font-size: 2.4rem; color: var(--oxide); line-height: 1;
}
.band-body h3 {
  font-family: var(--display); font-size: 2.2rem; text-transform: uppercase;
  margin: 0.2rem 0 0.5rem; line-height: 1;
}
.band-body p { margin: 0 0 1rem; color: var(--mute); max-width: 34rem }
.band-body a {
  font-family: var(--display); font-size: 1.15rem; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--asphalt);
  border-bottom: 3px solid var(--signal); align-self: flex-start; padding-bottom: 2px;
}

/* —— Delivery as checklist —— */
.check-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 0 }
.check-list li {
  display: grid; grid-template-columns: 64px 1fr; gap: 1.25rem;
  padding: 1.4rem 0; border-bottom: 1px solid rgba(240,239,232,0.15);
}
.check-list .box {
  width: 52px; height: 52px; border: 3px solid var(--signal);
  display: grid; place-items: center;
  font-family: var(--display); font-size: 1.5rem; color: var(--signal);
}
.check-list h3 {
  font-family: var(--display); font-size: 1.8rem; text-transform: uppercase;
  margin: 0 0 0.25rem; line-height: 1;
}
.check-list p { margin: 0; color: var(--dust) }

/* —— Project wall —— */
.wall {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px;
}
.wall-item {
  position: relative; grid-column: span 2; min-height: 240px; overflow: hidden;
  color: var(--chalk);
}
.wall-item.tall { grid-row: span 2; min-height: 488px }
.wall-item img {
  width: 100%; height: 100%; object-fit: cover;
  filter: grayscale(0.4); transition: filter 0.4s, transform 0.6s;
}
.wall-item:hover img { filter: grayscale(0); transform: scale(1.04) }
.wall-item figcaption {
  position: absolute; inset: auto 0 0 0; padding: 1rem;
  background: linear-gradient(transparent, rgba(30,30,28,0.92));
}
.wall-item .tag {
  font-family: var(--display); font-size: 0.95rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--signal);
}
.wall-item h3 {
  font-family: var(--display); font-size: 1.6rem; text-transform: uppercase;
  margin: 0.15rem 0 0; line-height: 1;
}

.filters {
  display: flex; flex-wrap: wrap; gap: 0.4rem; margin: 0 0 1.25rem;
}
.filter {
  font-family: var(--display); font-size: 1.1rem; letter-spacing: 0.08em;
  text-transform: uppercase; border: 2px solid var(--asphalt);
  background: transparent; padding: 0.35rem 0.9rem; color: var(--asphalt);
}
.filter.active, .filter:hover { background: var(--asphalt); color: var(--signal) }
.wall-item.hidden { display: none }

/* —— Call strip —— */
.call {
  display: grid; grid-template-columns: 1fr auto; gap: 2rem; align-items: center;
  background: var(--signal); color: var(--asphalt); padding: 2rem 2.25rem;
  border: 4px solid var(--asphalt);
  box-shadow: 10px 10px 0 var(--asphalt);
}
.call h2 {
  font-family: var(--display); font-size: clamp(2rem, 4vw, 3.2rem);
  text-transform: uppercase; margin: 0 0 0.35rem; line-height: 0.95;
}
.call p { margin: 0; max-width: 36rem }
.call .btn { background: var(--asphalt); color: var(--signal) }

/* —— Inner page mini hero —— */
.mast {
  background: var(--asphalt); color: var(--chalk);
  padding: 88px 0 56px; position: relative; overflow: hidden;
  min-height: 40vh; display: grid; align-content: end;
}
.mast-bg {
  position: absolute; inset: 0; z-index: 0;
}
.mast-bg img {
  width: 100%; height: 100%; object-fit: cover;
  filter: grayscale(0.25) contrast(1.08) brightness(0.42);
}
.mast-bg::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(105deg, rgba(12,18,32,0.92) 0%, rgba(12,18,32,0.55) 55%, rgba(12,18,32,0.4) 100%),
    linear-gradient(0deg, rgba(12,18,32,0.88) 0%, transparent 50%);
}
.mast::before {
  content: ""; position: absolute; right: -40px; top: 20%; z-index: 1;
  width: 180px; height: 180px;
  background: repeating-linear-gradient(-45deg, var(--signal), var(--signal) 8px, transparent 8px, transparent 16px);
  opacity: 0.28; pointer-events: none;
}
.mast .wrap {
  position: relative; z-index: 2;
}
.crumbs {
  font-family: var(--display); letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--signal); font-size: 1rem; margin-bottom: 0.6rem;
}
.mast h1 {
  font-family: var(--display); font-size: clamp(3rem, 8vw, 5.5rem);
  text-transform: uppercase; line-height: 0.9; margin: 0 0 0.8rem; max-width: 14ch;
}
.mast p { max-width: 38rem; color: rgba(240,239,232,0.78); margin: 0 }

.flag {
  display: grid; grid-template-columns: auto 1fr; gap: 1rem; align-items: start;
  padding: 1rem 1.15rem; background: var(--panel);
  border-left: 8px solid var(--oxide); margin-bottom: 2rem;
}
.flag strong {
  font-family: var(--display); letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--oxide); font-size: 1rem;
}

/* About / values as stencil boards */
.boards {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px;
}
.board {
  background: var(--asphalt); color: var(--chalk); padding: 1.5rem;
  min-height: 200px; border-top: 5px solid var(--signal);
}
.board h3 {
  font-family: var(--display); font-size: 1.8rem; text-transform: uppercase;
  margin: 0 0 0.5rem; line-height: 1;
}
.board p { margin: 0; color: var(--dust); font-size: 0.95rem }

.principles {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0;
  border: 3px solid var(--asphalt);
}
.principle {
  padding: 1.5rem; border: 1px solid rgba(12,18,32,0.12);
  background: var(--panel);
}
.principle:nth-child(1) { background: var(--signal) }
.principle strong {
  font-family: var(--display); font-size: 1.7rem; text-transform: uppercase;
  display: block; margin-bottom: 0.35rem;
}
.principle p { margin: 0; color: var(--mute) }
.principle:nth-child(1) p { color: var(--asphalt) }

.flow {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  counter-reset: flow;
}
.flow-step {
  counter-increment: flow; padding: 1.4rem 1.2rem;
  border-right: 3px solid var(--asphalt); background: var(--panel);
  position: relative;
}
.flow-step:last-child { border-right: 0 }
.flow-step::before {
  content: counter(flow, decimal-leading-zero);
  font-family: var(--display); font-size: 2.4rem; color: var(--oxide);
  display: block; line-height: 1; margin-bottom: 1.5rem;
}
.flow-step h3 {
  font-family: var(--display); font-size: 1.5rem; text-transform: uppercase; margin: 0 0 0.35rem;
}
.flow-step p { margin: 0; color: var(--mute); font-size: 0.92rem }

.sources { list-style: none; padding: 0; margin: 0 }
.sources li {
  padding: 1.1rem 0; border-bottom: 2px solid rgba(12,18,32,0.1);
}
.sources a {
  font-family: var(--display); font-size: 1.5rem; text-transform: uppercase;
}
.sources a:hover { color: var(--oxide) }
.sources small { display: block; color: var(--mute); margin-top: 0.25rem }

/* Services stack */
.service-stack { display: grid; gap: 10px }
.service-sheet {
  background: var(--panel); border: 3px solid var(--asphalt); padding: 1.4rem 1.5rem;
  display: grid; grid-template-columns: 1fr auto; gap: 1rem; align-items: start;
}
.service-sheet h3 {
  font-family: var(--display); font-size: 1.9rem; text-transform: uppercase;
  margin: 0.35rem 0 0.4rem; line-height: 1;
}
.service-sheet p { margin: 0 0 0.5rem; color: var(--mute) }
.service-sheet .go {
  font-family: var(--display); font-size: 1.15rem; letter-spacing: 0.06em;
  text-transform: uppercase; background: var(--signal); color: var(--asphalt);
  padding: 0.55rem 0.9rem; align-self: center; white-space: nowrap;
}

/* Contact work-order */
.work-order {
  display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 2rem; align-items: start;
}
.dossier { display: grid; gap: 8px }
.dossier a, .dossier div {
  display: block; background: var(--panel); border: 2px solid var(--asphalt);
  padding: 0.9rem 1rem;
}
.dossier small {
  display: block; font-family: var(--display); letter-spacing: 0.12em;
  text-transform: uppercase; font-size: 0.95rem; color: var(--mute);
}
.dossier strong {
  font-family: var(--display); font-size: 1.4rem; text-transform: uppercase;
}

.order-form {
  background: var(--asphalt); color: var(--chalk); padding: 1.75rem;
  border-top: 8px solid var(--signal);
}
.order-form h2 {
  font-family: var(--display); font-size: 2.4rem; text-transform: uppercase;
  margin: 0.5rem 0 0.35rem; line-height: 1;
}
.order-form .note { color: var(--dust); font-size: 0.92rem; margin-bottom: 1.25rem }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem }
.field { display: grid; gap: 0.3rem }
.field.full { grid-column: 1 / -1 }
.field label {
  font-family: var(--display); letter-spacing: 0.1em; text-transform: uppercase;
  font-size: 1rem; color: var(--signal);
}
.field input, .field select, .field textarea {
  width: 100%; background: transparent; color: var(--chalk);
  border: 0; border-bottom: 2px solid rgba(240,239,232,0.3);
  padding: 0.65rem 0; border-radius: 0;
}
.field select option { background: var(--asphalt) }
.field textarea { min-height: 110px; resize: vertical }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: 0; border-color: var(--signal);
}
.form-status {
  display: none; margin-top: 1rem; padding: 0.8rem;
  border: 2px dashed var(--signal); color: var(--chalk);
}
.form-status.show { display: block }
.form-status a { color: var(--signal); font-weight: 700 }

.brief-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px;
}
.brief {
  background: var(--panel); border: 2px solid var(--asphalt); padding: 1.2rem;
  min-height: 140px;
}
.brief strong {
  font-family: var(--display); font-size: 1.5rem; text-transform: uppercase;
}
.brief p { margin: 0.35rem 0 0; color: var(--mute); font-size: 0.92rem }

/* —— Footer —— */
.site-end {
  background: var(--asphalt); color: var(--dust); padding: 48px 0 24px;
  border-top: 14px solid var(--signal);
}
.site-end-grid {
  display: grid; grid-template-columns: 1.4fr 1fr; gap: 2rem;
}
.site-end .logo-chip {
  width: 96px; background: var(--chalk); padding: 6px; margin-bottom: 0.8rem;
}
.site-end h3 {
  font-family: var(--display); letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--signal); font-size: 1.05rem; margin: 0 0 0.6rem;
}
.site-end .cols { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem }
.site-end a { display: block; margin-bottom: 0.35rem }
.site-end a:hover { color: var(--signal) }
.site-end-bar {
  margin-top: 2rem; padding-top: 1rem;
  border-top: 1px solid rgba(240,239,232,0.12);
  font-family: var(--display); letter-spacing: 0.1em; text-transform: uppercase;
  font-size: 1rem; display: flex; justify-content: space-between; gap: 1rem;
}

/* Motion */
.slide {
  opacity: 0; transform: translateX(-24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.slide.in { opacity: 1; transform: none }

@media (max-width: 980px) {
  :root { --rail: 56px }
  .rail-nav a { font-size: 0.9rem; padding: 8px 0 }
  .split-note, .work-order, .band { grid-template-columns: 1fr }
  .band:nth-child(even) { direction: ltr }
  .band-shot { min-height: 200px }
  .boards, .flow, .brief-grid { grid-template-columns: 1fr 1fr }
  .wall { grid-template-columns: 1fr 1fr }
  .wall-item, .wall-item.tall { grid-column: span 1; grid-row: auto; min-height: 240px }
  .call { grid-template-columns: 1fr }
  .service-sheet { grid-template-columns: 1fr }
  .service-sheet .go { justify-self: start }
  .chapter-head { grid-template-columns: 80px 1fr }
  .chapter-no { font-size: 3.5rem }
}

@media (max-width: 640px) {
  :root { --rail: 0px }
  .rail {
    inset: auto 0 0 0; width: 100%; height: 64px;
    flex-direction: row; padding: 0 12px; justify-content: space-between;
  }
  .rail-nav {
    display: none; position: fixed; inset: auto 0 64px 0;
    background: var(--asphalt); flex-direction: row; flex-wrap: wrap;
    padding: 12px; height: auto; width: 100%;
  }
  .rail-nav.open { display: flex }
  .rail-nav a {
    writing-mode: horizontal-tb; transform: none; width: auto;
    border-left: 0; border-bottom: 3px solid transparent; padding: 8px 12px;
  }
  .rail-nav a.active, .rail-nav a:hover { border-bottom-color: var(--signal) }
  .rail-toggle { display: grid; place-items: center }
  .rail-quote { display: none }
  .shell { margin-left: 0; padding-bottom: 64px }
  .gate {
    align-content: center;
    min-height: calc(100svh - 64px);
  }
  .gate-shot::after {
    background:
      linear-gradient(180deg, rgba(12,18,32,0.55) 0%, rgba(12,18,32,0.72) 40%, rgba(12,18,32,0.55) 100%),
      linear-gradient(90deg, rgba(12,18,32,0.8) 0%, transparent 72%);
  }
  .gate-body {
    margin-left: 20px;
    width: min(calc(100% - 28px), 720px);
    padding: 24px 0;
  }
  .gate-wm { bottom: -8%; opacity: 0.9 }
  .boards, .flow, .principles, .brief-grid, .site-end-grid, .site-end .cols,
  .grid2 { grid-template-columns: 1fr }
  .flow-step { border-right: 0; border-bottom: 3px solid var(--asphalt) }
  .wall { grid-template-columns: 1fr }
  .site-end-bar { flex-direction: column }
  .chapter { padding: 64px 0 }
}

/* Form submit only */
.btn.is-loading {
  position: relative;
  color: transparent !important;
  pointer-events: none;
}
.btn.is-loading::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 18px;
  height: 18px;
  margin: -9px 0 0 -9px;
  border: 2px solid rgba(12, 18, 32, 0.25);
  border-top-color: var(--asphalt);
  border-radius: 50%;
  animation: spin 0.65s linear infinite;
}
.order-form .btn.is-loading::after,
.call .btn.is-loading::after {
  border-color: rgba(245, 208, 0, 0.25);
  border-top-color: var(--signal);
}
@keyframes spin {
  to { transform: rotate(360deg) }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important; transition: none !important; scroll-behavior: auto !important;
  }
  .gate-shot img { transform: none }
  .slide { opacity: 1; transform: none }
  .ticker-track { animation: none }
}