/* ==========================================================================
   Shhhbo — Expertise in Local Marketing
   Design system & site stylesheet
   ========================================================================== */

/* ---------- 1. Tokens ---------- */
:root {
  /* Brand palette — orange & white system (sourced from brand book_OP.pdf) */
  --coral: #eb6005;        /* primary brand orange (brand book) */
  --coral-600: #c15006;    /* deep orange (hover / dark accents) */
  --coral-300: #f79e64;    /* light orange */
  --teal: #f47725;         /* secondary accent (mid brand orange) */
  --purple: #9b4208;       /* deep burnt orange */
  --amber: #f3ae82;        /* light warm orange */

  --ink: #1a0f05;          /* warm near-black */
  --ink-2: #241406;
  --ink-3: #2f1b0a;
  --ink-4: #3d2712;

  --paper: #ffffff;        /* white */
  --paper-2: #fcf6f0;      /* warm cream */
  --paper-3: #f5eae0;

  --white: #ffffff;
  --muted: #a3917c;        /* readable warm grey on dark sections */
  --muted-dark: #6b5848;   /* readable warm grey on light sections */

  --line: rgba(255,255,255,0.12);
  --line-strong: rgba(255,255,255,0.24);
  --line-dark: rgba(43,25,10,0.14);

  /* Type */
  --font-display: "Manrope", "Noto Sans HK", "PingFang HK", "Microsoft JhengHei", "Heiti TC", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Manrope", "Noto Sans HK", "PingFang HK", "Microsoft JhengHei", "Heiti TC", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --font-cjk: "Noto Sans HK", "PingFang HK", "Microsoft JhengHei", "Heiti TC", "Manrope", sans-serif;

  /* Scale */
  --step--1: clamp(0.78rem, 0.76rem + 0.1vw, 0.84rem);
  --step-0: clamp(0.94rem, 0.9rem + 0.2vw, 1.05rem);
  --step-1: clamp(1.1rem, 1.03rem + 0.35vw, 1.28rem);
  --step-2: clamp(1.35rem, 1.2rem + 0.7vw, 1.7rem);
  --step-3: clamp(1.7rem, 1.4rem + 1.4vw, 2.4rem);
  --step-4: clamp(2.1rem, 1.5rem + 2.8vw, 3.6rem);
  --step-5: clamp(2.6rem, 1.6rem + 4.6vw, 5.4rem);
  --step-6: clamp(3rem, 1.2rem + 8vw, 8.4rem);

  /* Space */
  --gutter: clamp(1.1rem, 4vw, 4rem);
  --section-y: clamp(4.5rem, 9vw, 9.5rem);
  --maxw: 1320px;
  --maxw-narrow: 880px;

  --radius: 4px;
  --radius-lg: 14px;
  --radius-xl: 24px;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ---------- 2. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

* { margin: 0; padding: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.65;
  color: var(--paper);
  background: var(--ink);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  font-synthesis-weight: none;
}

body.is-locked { overflow: hidden; }

img, svg, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
ul, ol { list-style: none; }
input, textarea, select { font: inherit; color: inherit; }

::selection { background: var(--coral); color: #fff; }

:focus-visible {
  outline: 2px solid var(--coral);
  outline-offset: 3px;
  border-radius: 2px;
}

/* Chinese typography tuning — PingFang HK / Microsoft JhengHei are the reliable
   system fallbacks while the Noto Sans HK subsets stream in. */
html[data-lang="zh"] body { font-family: var(--font-cjk); }
html[data-lang="zh"] .display { letter-spacing: -0.01em; }
html[data-lang="zh"] .step__title,
html[data-lang="zh"] .card__title,
html[data-lang="zh"] .pillar__t,
html[data-lang="zh"] .acc__title { line-height: 1.35; }

/* ---------- 3. Layout primitives ---------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.wrap--narrow { max-width: var(--maxw-narrow); }
.wrap--wide { max-width: 1560px; }

.section { position: relative; padding-block: var(--section-y); }
.section--tight { padding-block: clamp(3rem, 6vw, 6rem); }
.section--ink { background: var(--ink); color: var(--paper); }
.section--ink-2 { background: var(--ink-2); color: var(--paper); }
.section--paper { background: var(--paper); color: var(--ink); }
.section--paper-2 { background: var(--paper-2); color: var(--ink); }

.grid { display: grid; gap: clamp(1.2rem, 2.5vw, 2.4rem); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.stack > * + * { margin-top: var(--stack-gap, 1rem); }

/* ---------- 4. Type ---------- */
.display {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 0.98;
  letter-spacing: -0.035em;
  text-wrap: balance;
}
.h1 { font-size: var(--step-5); }
.h2 { font-size: var(--step-4); }
.h3 { font-size: var(--step-3); }
.h4 { font-size: var(--step-2); font-weight: 700; letter-spacing: -0.02em; line-height: 1.15; }

.lead {
  font-size: var(--step-1);
  line-height: 1.55;
  color: var(--muted);
  max-width: 62ch;
  text-wrap: pretty;
}
.section--paper .lead,
.section--paper-2 .lead { color: var(--muted-dark); }

.body-sm { font-size: var(--step--1); }
.muted { color: var(--muted); }
.section--paper .muted,
.section--paper-2 .muted { color: var(--muted-dark); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--coral);
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--coral);
  flex: none;
}
html[data-lang="zh"] .eyebrow { letter-spacing: 0.08em; }

.accent { color: var(--coral); }
.zh-sub {
  display: block;
  font-size: var(--step-0);
  font-weight: 500;
  letter-spacing: 0;
  color: var(--muted);
  margin-top: 0.35rem;
}
.section--paper .zh-sub, .section--paper-2 .zh-sub { color: var(--muted-dark); }

/* Section header */
.sec-head { max-width: 60ch; }
.sec-head .h2 { margin-top: 1.1rem; }
.sec-head .lead { margin-top: 1.1rem; }

.sec-head--split {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: end;
  max-width: none;
}

/* Centred statement block (GEO & SEO band) */
.sec-center { max-width: 900px; margin-inline: auto; text-align: center; }
.sec-center .eyebrow { justify-content: center; }
.sec-center .lead { margin-inline: auto; }
.sec-center .tag-list { justify-content: center; }

/* ---------- 5. Buttons ---------- */
.btn {
  --btn-bg: var(--coral);
  --btn-fg: #fff;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.95rem 1.6rem;
  background: var(--btn-bg);
  color: var(--btn-fg);
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: transform 0.35s var(--ease), background 0.3s var(--ease), color 0.3s var(--ease), box-shadow 0.35s var(--ease);
  box-shadow: 0 0 0 0 rgba(235,96,5,0.4);
}
.btn:hover {
  transform: translateY(-2px);
  background: var(--coral-600);
  box-shadow: 0 10px 30px -8px rgba(235,96,5,0.55);
}
.btn svg { width: 15px; height: 15px; flex: none; transition: transform 0.35s var(--ease); }
.btn:hover svg { transform: translateX(4px); }

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: currentColor;
  border: 1px solid var(--line-strong);
  box-shadow: none;
}
.btn--ghost:hover { background: rgba(255,255,255,0.07); box-shadow: none; }
.section--paper .btn--ghost,
.section--paper-2 .btn--ghost { border-color: var(--line-dark); }
.section--paper .btn--ghost:hover,
.section--paper-2 .btn--ghost:hover { background: rgba(26,15,5,0.05); }

.btn--sm { padding: 0.7rem 1.2rem; font-size: 0.8rem; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 0.86rem;
  color: var(--coral);
}
.link-arrow svg { width: 14px; height: 14px; transition: transform 0.35s var(--ease); }
.link-arrow:hover svg { transform: translateX(5px); }

/* ---------- 6. Header / nav ---------- */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 200;
  padding-block: 1.1rem;
  transition: background 0.4s var(--ease), padding 0.4s var(--ease), border-color 0.4s var(--ease), backdrop-filter 0.4s;
  border-bottom: 1px solid transparent;
}
.header.is-stuck {
  background: rgba(26,15,5,0.92);
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  border-bottom-color: var(--line);
  padding-block: 0.75rem;
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.brand { display: flex; align-items: center; flex: none; }
.brand img { height: clamp(30px, 3.2vw, 42px); width: auto; }

.nav { display: flex; align-items: center; gap: clamp(0.4rem, 1.6vw, 1.5rem); }
.nav__link {
  position: relative;
  padding: 0.4rem 0.2rem;
  font-size: 0.87rem;
  font-weight: 600;
  color: rgba(255,255,255,0.86);
  transition: color 0.3s var(--ease);
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1.5px;
  background: var(--coral);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.nav__link:hover, .nav__link[aria-current="page"] { color: #fff; }
.nav__link:hover::after, .nav__link[aria-current="page"]::after { transform: scaleX(1); }
.nav__link .zh { display: block; font-size: 0.62rem; font-weight: 500; opacity: 0.5; letter-spacing: 0.06em; margin-top: -2px; }
.nav__link--ext { display: inline-flex; align-items: center; gap: 0.3rem; }
.nav__link--ext svg { width: 11px; height: 11px; opacity: 0.65; transition: transform 0.3s var(--ease), opacity 0.3s; }
.nav__link--ext:hover svg { transform: translate(2px, -2px); opacity: 1; }


.header__actions { display: flex; align-items: center; gap: 0.7rem; flex: none; }

/* Language toggle */
.lang {
  display: inline-flex;
  align-items: center;
  padding: 3px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}
.lang button {
  padding: 0.32rem 0.66rem;
  border-radius: 999px;
  color: rgba(255,255,255,0.72);
  transition: background 0.3s var(--ease), color 0.3s var(--ease);
}
.lang button[aria-pressed="true"] { background: var(--coral); color: #fff; }

/* Burger */
.burger {
  display: none;
  width: 42px; height: 42px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
}
.burger span {
  display: block;
  width: 17px; height: 1.5px;
  background: currentColor;
  position: relative;
  transition: transform 0.35s var(--ease), opacity 0.25s;
}
.burger span::before, .burger span::after {
  content: ""; position: absolute; left: 0;
  width: 17px; height: 1.5px; background: currentColor;
  transition: transform 0.35s var(--ease);
}
.burger span::before { top: -5.5px; }
.burger span::after { top: 5.5px; }
.burger[aria-expanded="true"] span { transform: rotate(45deg); }
.burger[aria-expanded="true"] span::before { transform: rotate(-90deg) translateX(-5.5px); }
.burger[aria-expanded="true"] span::after { opacity: 0; }

/* Mobile drawer */
.drawer {
  position: fixed;
  inset: 0;
  z-index: 190;
  background: var(--ink-2);
  padding: 7rem var(--gutter) 3rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease), visibility 0.4s;
  overflow-y: auto;
}
.drawer.is-open { opacity: 1; visibility: visible; transform: none; }
.drawer a {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 7vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}
.drawer a .zh { font-size: 0.9rem; font-weight: 500; color: var(--muted); letter-spacing: 0; }
.drawer__foot { margin-top: 2rem; display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }

/* ---------- 7. Hero ---------- */
.hero {
  position: relative;
  padding-top: clamp(8rem, 17vh, 12rem);
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
  background: var(--ink);
  overflow: hidden;
}
.hero__glow {
  position: absolute;
  pointer-events: none;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.5;
}
.hero__glow--1 { width: 46vw; height: 46vw; background: rgba(235,96,5,0.45); top: -16vw; right: -8vw; }
.hero__glow--2 { width: 34vw; height: 34vw; background: rgba(235,96,5,0.3); bottom: -14vw; left: -10vw; }
.hero__glow--3 { width: 22vw; height: 22vw; background: rgba(155,66,8,0.42); top: 26%; left: 42%; }

.hero__noise {
  position: absolute; inset: 0;
  pointer-events: none;
  opacity: 0.5;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.4'/%3E%3C/svg%3E");
}

.hero__inner { position: relative; z-index: 2; }
.hero__tag {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.42rem 0.9rem 0.42rem 0.5rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: rgba(255,255,255,0.95);
  background: rgba(255,255,255,0.04);
}
.hero__tag img { height: 15px; width: auto; }
.hero__tag .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 4px rgba(235,96,5,0.22);
  margin-right: 0.3rem;
}

.hero__title {
  margin-top: clamp(1.5rem, 3vw, 2.4rem);
  font-size: var(--step-6);
  font-weight: 800;
  line-height: 0.9;
  letter-spacing: -0.045em;
}
.hero__title em {
  font-style: normal;
  color: var(--coral);
  position: relative;
}
.hero__title .outline {
  -webkit-text-stroke: 1.5px rgba(255,255,255,0.55);
  color: transparent;
}
html[data-lang="zh"] .hero__title { line-height: 1.05; letter-spacing: -0.02em; }

.hero__foot {
  margin-top: clamp(2rem, 4vw, 3.2rem);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: end;
  padding-bottom: clamp(2rem, 4vw, 3.5rem);
}
.hero__lead { max-width: 46ch; font-size: var(--step-1); color: rgba(255,255,255,0.88); line-height: 1.5; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 0.75rem; }

.hero__metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  position: relative;
  z-index: 2;
}
.metric { padding: 1.5rem 1.2rem 0 0; border-right: 1px solid var(--line); }
.metric:last-child { border-right: 0; }
.metric__num {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 3.4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  color: #fff;
}
.metric__num .suffix { color: var(--coral); }
.metric__label { margin-top: 0.55rem; font-size: 0.78rem; color: var(--muted); line-height: 1.4; }

/* ---------- 8. Marquee ---------- */
.marquee {
  position: relative;
  overflow: hidden;
  display: flex;
  gap: 0;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
}
.marquee__track {
  display: flex;
  flex: none;
  gap: var(--mq-gap, 1rem);
  padding-right: var(--mq-gap, 1rem);
  animation: mq var(--mq-dur, 46s) linear infinite;
  will-change: transform;
}
.marquee--rev .marquee__track { animation-direction: reverse; }
.marquee:hover .marquee__track { animation-play-state: paused; }
@keyframes mq { to { transform: translateX(-100%); } }

.strip { padding-block: clamp(2rem, 4vw, 3.5rem); }
.strip__item {
  position: relative;
  flex: none;
  width: clamp(230px, 26vw, 380px);
  aspect-ratio: 16 / 10;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--ink-3);
}
.strip__item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.9s var(--ease-out), filter 0.6s; filter: saturate(0.85); }
.strip__item:hover img { transform: scale(1.06); filter: saturate(1.05); }
.strip__cap {
  position: absolute;
  left: 0.85rem; bottom: 0.85rem;
  z-index: 2;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.28rem 0.6rem;
  border-radius: 999px;
  background: rgba(26,15,5,0.62);
  backdrop-filter: blur(8px);
  color: #fff;
}

/* ---------- 9. Cards ---------- */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: clamp(1.5rem, 2.6vw, 2.2rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255,255,255,0.035), rgba(255,255,255,0));
  transition: border-color 0.4s var(--ease), transform 0.5s var(--ease), background 0.4s var(--ease);
  overflow: hidden;
}
.card:hover { border-color: var(--line-strong); transform: translateY(-4px); background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0)); }
.section--paper .card, .section--paper-2 .card {
  border-color: var(--line-dark);
  background: #fff;
}
.section--paper .card:hover, .section--paper-2 .card:hover { border-color: rgba(26,15,5,.24); }

.card__icon {
  width: 46px; height: 46px;
  display: grid; place-items: center;
  border-radius: 12px;
  margin-bottom: 1.3rem;
  background: rgba(235,96,5,0.13);
  border: 1px solid rgba(235,96,5,0.28);
  color: var(--coral);
}
.card__icon svg { width: 21px; height: 21px; }
.card__icon--teal { background: rgba(235,96,5,.13); border-color: rgba(235,96,5,.3); color: var(--teal); }
.card__icon--purple { background: rgba(155,66,8,.15); border-color: rgba(155,66,8,.34); color: var(--purple); }
.card__icon--amber { background: rgba(243,174,130,.14); border-color: rgba(243,174,130,.32); color: var(--amber); }

.card__title { font-size: var(--step-2); font-weight: 700; letter-spacing: -0.02em; line-height: 1.15; }
.card__text { margin-top: 0.85rem; color: var(--muted); font-size: var(--step-0); line-height: 1.6; }
.section--paper .card__text, .section--paper-2 .card__text { color: var(--muted-dark); }

.tag-list { display: flex; flex-wrap: wrap; gap: 0.42rem; margin-top: 1.4rem; }
.tag {
  font-size: 0.735rem;
  font-weight: 600;
  padding: 0.3rem 0.62rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: rgba(255,255,255,0.88);
  background: rgba(255,255,255,0.03);
  transition: border-color .3s, color .3s;
}
.card:hover .tag { border-color: rgba(255,255,255,.2); }
.section--paper .tag, .section--paper-2 .tag { border-color: var(--line-dark); color: var(--muted-dark); background: var(--paper); }

/* Big feature card with image */
.feature {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--ink-2);
  min-height: 420px;
}
.feature--flip .feature__media { order: 2; }
.feature__media { position: relative; overflow: hidden; background: var(--ink-3); }
.feature__media img { width: 100%; height: 100%; object-fit: cover; }
.feature__body { padding: clamp(1.8rem, 4vw, 3.6rem); display: flex; flex-direction: column; justify-content: center; }
.feature__body .h3 { margin-top: 1rem; }
.feature__body .lead { margin-top: 1rem; }

/* ---------- 10. Stats band ---------- */
.stats { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 0; border-block: 1px solid var(--line); }
.section--paper .stats, .section--paper-2 .stats { border-color: var(--line-dark); }
.stat { padding: clamp(1.6rem, 3vw, 2.6rem) clamp(1rem, 2vw, 2rem); border-right: 1px solid var(--line); }
.section--paper .stat, .section--paper-2 .stat { border-color: var(--line-dark); }
.stat:last-child { border-right: 0; }
.stat__num {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.045em;
}
.stat__num .suffix { color: var(--coral); }
.stat__label { margin-top: 0.7rem; font-size: 0.82rem; color: var(--muted); line-height: 1.45; }
.section--paper .stat__label, .section--paper-2 .stat__label { color: var(--muted-dark); }

/* ---------- 11. Roadmap / process ---------- */
.roadmap { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 0; counter-reset: step; }
.step {
  position: relative;
  padding: clamp(1.6rem, 3vw, 2.4rem) clamp(1.1rem, 2vw, 1.8rem) clamp(1.6rem,3vw,2.4rem) 0;
  border-top: 2px solid var(--line);
  transition: border-color .5s var(--ease);
}
.step:hover { border-top-color: var(--coral); }
.section--paper .step, .section--paper-2 .step { border-top-color: var(--line-dark); }
.section--paper .step:hover, .section--paper-2 .step:hover { border-top-color: var(--coral); }
.step__n {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--coral);
}
.step__title { margin-top: 0.9rem; font-size: var(--step-1); font-weight: 700; letter-spacing: -0.015em; line-height: 1.25; }
.step__text { margin-top: 0.7rem; font-size: 0.9rem; color: var(--muted); line-height: 1.6; }
.section--paper .step__text, .section--paper-2 .step__text { color: var(--muted-dark); }

/* ---------- 12. Work grid ---------- */
.work-grid { display: grid; grid-template-columns: repeat(6, minmax(0,1fr)); gap: clamp(1rem, 2vw, 1.6rem); }
.work {
  position: relative;
  display: block;
  grid-column: span 2;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--ink-3);
  border: 1px solid var(--line);
  transition: border-color .4s var(--ease), transform .5s var(--ease);
}
.work:hover { border-color: var(--line-strong); transform: translateY(-4px); }
.work--wide { grid-column: span 3; }
.work--full { grid-column: span 6; }
.work__media { position: relative; aspect-ratio: 16/11; overflow: hidden; }
.work--wide .work__media, .work--full .work__media { aspect-ratio: 16/9; }
.work__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 1s var(--ease-out); filter: saturate(.9); }
.work:hover .work__media img { transform: scale(1.05); filter: saturate(1.05); }
.work__media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(26,15,5,0) 40%, rgba(26,15,5,.82));
}
.work__body { position: absolute; inset: auto 0 0 0; padding: clamp(1.1rem, 2vw, 1.6rem); z-index: 2; }
.work__client {
  font-size: 0.7rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--coral-300);
}
.work__title { margin-top: 0.5rem; font-size: var(--step-1); font-weight: 700; letter-spacing: -0.02em; line-height: 1.2; }
.work__meta { margin-top: 0.5rem; font-size: 0.8rem; color: var(--muted); }
.work__kpi {
  position: absolute;
  top: 0.9rem; right: 0.9rem;
  z-index: 2;
  padding: 0.5rem 0.85rem;
  border-radius: 999px;
  background: var(--coral);
  color: #fff;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  box-shadow: 0 8px 24px -8px rgba(235,96,5,.7);
}

/* ---------- 13. Case study detail ---------- */
.case { border-top: 1px solid var(--line); padding-top: clamp(2.5rem, 5vw, 4rem); }
.section--paper .case, .section--paper-2 .case { border-color: var(--line-dark); }
.case + .case { margin-top: clamp(3rem, 6vw, 5.5rem); }
.case__head { display: grid; grid-template-columns: minmax(0,1fr) minmax(0, 1.1fr); gap: clamp(1.5rem, 4vw, 3.5rem); align-items: start; }
.case__facts { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 1.4rem 2rem; }
.fact__k { font-size: 0.7rem; font-weight: 700; letter-spacing: 0.13em; text-transform: uppercase; color: var(--muted); }
.section--paper .fact__k, .section--paper-2 .fact__k { color: var(--muted-dark); }
.fact__v { margin-top: 0.4rem; font-size: var(--step-0); font-weight: 600; line-height: 1.4; }
.case__gallery { margin-top: clamp(1.8rem, 3.5vw, 3rem); display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: clamp(.7rem, 1.6vw, 1.2rem); }
.case__gallery img { width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: var(--radius-lg); border: 1px solid var(--line); }
.section--paper .case__gallery img, .section--paper-2 .case__gallery img { border-color: var(--line-dark); }

/* Results list */
.results { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.section--paper .results, .section--paper-2 .results { background: var(--line-dark); border-color: var(--line-dark); }
.result { background: var(--ink); padding: 1.15rem clamp(1rem,2vw,1.5rem); display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 1rem; align-items: center; }
.section--ink-2 .result { background: var(--ink-2); }
.section--paper .result, .section--paper-2 .result { background: #fff; }
.result__label { font-size: 0.92rem; }
.result__val { font-family: var(--font-display); font-size: var(--step-1); font-weight: 800; color: var(--coral); letter-spacing: -0.02em; white-space: nowrap; }

/* ---------- 14. Table ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-lg); }
.section--paper .table-wrap, .section--paper-2 .table-wrap { border-color: var(--line-dark); }
table.data { width: 100%; border-collapse: collapse; font-size: 0.9rem; min-width: 560px; }
table.data th, table.data td { padding: 0.85rem clamp(.8rem,1.6vw,1.2rem); text-align: left; border-bottom: 1px solid var(--line); }
.section--paper table.data th, .section--paper table.data td,
.section--paper-2 table.data th, .section--paper-2 table.data td { border-color: var(--line-dark); }
table.data thead th { font-size: 0.7rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.section--paper table.data thead th, .section--paper-2 table.data thead th { color: var(--muted-dark); }
table.data tbody tr:last-child td { border-bottom: 0; }
table.data tbody tr:hover { background: rgba(255,255,255,.035); }
.section--paper table.data tbody tr:hover, .section--paper-2 table.data tbody tr:hover { background: rgba(26,15,5,.035); }
td .rank {
  display: inline-grid; place-items: center;
  min-width: 30px; height: 30px; padding-inline: .45rem;
  border-radius: 999px;
  font-weight: 800; font-size: 0.82rem;
  background: rgba(255,255,255,.08); color: var(--paper);
}
.section--paper td .rank, .section--paper-2 td .rank { background: var(--paper-2); color: var(--ink); }
td .rank--top { background: var(--coral); color: #fff; }
td .rank--up { color: var(--teal); }
.arrow { color: var(--teal); font-weight: 700; }

/* ---------- 15. Partners ---------- */
.partners { display: flex; flex-wrap: wrap; gap: clamp(.8rem, 2vw, 1.4rem); justify-content: center; }
.partner {
  display: flex; align-items: center; justify-content: center;
  width: clamp(120px, 15vw, 168px);
  height: clamp(64px, 8vw, 82px);
  padding: 0.9rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,.03);
  transition: border-color .4s var(--ease), background .4s var(--ease), transform .4s var(--ease);
}
.section--paper .partner, .section--paper-2 .partner { border-color: var(--line-dark); background: #fff; }
.partner:hover { border-color: var(--line-strong); transform: translateY(-3px); }
.section--paper .partner:hover, .section--paper-2 .partner:hover { border-color: rgba(26,15,5,.25); }
/* Partner marks keep their own backgrounds, so only a greyscale filter is safe:
   it never tints a white/coloured logo plate into a visible box, and brand
   colour is revealed on hover. */
/* Each logo is normalised inside the frame: the img fills the frame's padding
   box and object-fit:contain scales the artwork down proportionally, so no
   mark ever overflows the frame top, bottom, left or right. */
.partner img {
  width: 100%; height: 100%;
  object-fit: contain;
  filter: grayscale(1);
  opacity: .66;
  transition: filter .4s var(--ease), opacity .4s var(--ease), transform .4s var(--ease);
}
.partner:hover img { filter: grayscale(0); opacity: 1; transform: scale(1.04); }

/* ---------- 16. Accordion (services detail) ---------- */
.acc { border-top: 1px solid var(--line); }
.section--paper .acc, .section--paper-2 .acc { border-color: var(--line-dark); }
.acc__item { border-bottom: 1px solid var(--line); }
.section--paper .acc__item, .section--paper-2 .acc__item { border-color: var(--line-dark); }
.acc__btn {
  width: 100%;
  display: flex; align-items: center; gap: 1.2rem;
  padding: clamp(1.1rem, 2.2vw, 1.6rem) 0;
  text-align: left;
}
.acc__n { font-family: var(--font-mono); font-size: 0.76rem; color: var(--coral); flex: none; padding-top: .3rem; }
.acc__title { flex: 1; font-size: var(--step-2); font-weight: 700; letter-spacing: -0.02em; line-height: 1.2; }
.acc__icon { flex: none; width: 34px; height: 34px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 999px; transition: transform .4s var(--ease), background .4s, border-color .4s; }
.section--paper .acc__icon, .section--paper-2 .acc__icon { border-color: var(--line-dark); }
.acc__icon svg { width: 13px; height: 13px; }
.acc__item.is-open .acc__icon { transform: rotate(45deg); background: var(--coral); border-color: var(--coral); color: #fff; }
.acc__panel { overflow: hidden; height: 0; transition: height .5s var(--ease); }
.acc__inner { padding-bottom: clamp(1.4rem, 3vw, 2.4rem); }
.acc__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 1.4rem 2rem; }
.acc__col h5 { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.13em; text-transform: uppercase; color: var(--muted); margin-bottom: .7rem; }
.section--paper .acc__col h5, .section--paper-2 .acc__col h5 { color: var(--muted-dark); }
.acc__col li { font-size: 0.9rem; line-height: 1.55; padding: .26rem 0; color: rgba(247,245,242,.86); }
.section--paper .acc__col li, .section--paper-2 .acc__col li { color: rgba(26,15,5,.82); }
.acc__col li::before { content: "— "; color: var(--coral); opacity: .75; }

/* ---------- 17. Pillars ---------- */
.pillars { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: clamp(.9rem, 1.8vw, 1.4rem); }
.pillar {
  position: relative;
  padding: clamp(1.5rem, 2.6vw, 2.2rem);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.015));
  overflow: hidden;
  transition: transform .5s var(--ease), border-color .4s;
}
.pillar:hover { transform: translateY(-4px); border-color: var(--line-strong); }
.pillar::before {
  content: ""; position: absolute; inset: 0 auto 0 0; width: 3px;
  background: var(--pillar-c, var(--coral));
}
.pillar__k { font-size: 0.7rem; font-weight: 700; letter-spacing: 0.15em; text-transform: uppercase; color: var(--pillar-c, var(--coral)); }
.pillar__t { margin-top: .7rem; font-size: var(--step-2); font-weight: 700; letter-spacing: -0.02em; }
.pillar__d { margin-top: .7rem; font-size: .92rem; color: var(--muted); line-height: 1.6; }
.pillar ul { margin-top: 1.1rem; }
.pillar li { font-size: .86rem; padding: .22rem 0; color: rgba(247,245,242,.78); }
.pillar li::before { content: "· "; color: var(--pillar-c, var(--coral)); font-weight: 800; }
.pillar--teal { --pillar-c: var(--teal); }
.pillar--purple { --pillar-c: var(--purple); }
.pillar--amber { --pillar-c: var(--amber); }

/* ---------- 18. CTA ---------- */
.cta {
  position: relative;
  background: linear-gradient(160deg, var(--coral), var(--coral-600));
  overflow: hidden;
  border-radius: var(--radius-xl);
  padding: clamp(2.4rem, 6vw, 5rem);
  text-align: center;
  color: #fff;
}
.cta__glow { position: absolute; width: 60%; aspect-ratio: 1; border-radius: 50%; filter: blur(100px); opacity: .32; background: rgba(255,255,255,.25); top: -30%; left: 20%; pointer-events: none; }
.cta > * { position: relative; z-index: 2; }
.cta .h2 { margin-top: 1.2rem; }
.cta__actions { margin-top: 2.2rem; display: flex; flex-wrap: wrap; gap: .8rem; justify-content: center; }
.cta .eyebrow { color: rgba(255, 255, 255, 0.88); }
.cta .eyebrow::before { background: rgba(255, 255, 255, 0.88); }
.cta .btn { --btn-bg: #fff; --btn-fg: var(--coral-600); box-shadow: 0 12px 32px -10px rgba(60,15,0,.45); }
.cta .btn:hover { --btn-bg: var(--paper-2); }
.cta .btn--ghost { --btn-bg: transparent; --btn-fg: #fff; border-color: rgba(255,255,255,.55); box-shadow: none; }
.cta .btn--ghost:hover { background: rgba(255,255,255,.12); }

/* ---------- 19. Forms ---------- */
.form { display: grid; gap: 1.2rem; }
.field { display: grid; gap: .5rem; }
.field label { font-size: .74rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.section--paper .field label, .section--paper-2 .field label { color: var(--muted-dark); }
.field input, .field textarea, .field select {
  width: 100%;
  padding: .95rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,.04);
  transition: border-color .3s, background .3s;
}
.section--paper .field input, .section--paper .field textarea, .section--paper .field select,
.section--paper-2 .field input, .section--paper-2 .field textarea, .section--paper-2 .field select {
  border-color: var(--line-dark); background: #fff;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--coral);
  background: rgba(235,96,5,.06);
}
.section--paper .field input:focus, .section--paper .field textarea:focus,
.section--paper-2 .field input:focus, .section--paper-2 .field textarea:focus { background: #fff; }
.field textarea { min-height: 150px; resize: vertical; }
.form__row { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 1.2rem; }
.form__note { font-size: .8rem; color: var(--muted); }
.form__ok {
  padding: 1rem 1.2rem; border-radius: var(--radius-lg);
  background: rgba(235,96,5,.14); border: 1px solid rgba(235,96,5,.4); color: var(--teal);
  font-size: .9rem; font-weight: 600;
  display: none;
}
.form__ok.is-on { display: block; }
.form__err {
  padding: 1rem 1.2rem; border-radius: var(--radius-lg);
  background: rgba(220,72,36,.16); border: 1px solid rgba(220,72,36,.5); color: #ffb59e;
  font-size: .9rem; font-weight: 600;
  display: none;
}
.form__err.is-on { display: block; }

/* ---------- 20. Contact rows ---------- */
.contact-rows { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.section--paper .contact-rows, .section--paper-2 .contact-rows { background: var(--line-dark); border-color: var(--line-dark); }
.contact-row { background: var(--ink-2); padding: 1.3rem clamp(1rem,2vw,1.6rem); display: grid; grid-template-columns: 130px minmax(0,1fr); gap: 1rem; align-items: baseline; }
.section--ink .contact-row { background: var(--ink); }
.section--paper .contact-row, .section--paper-2 .contact-row { background: #fff; }
.contact-row dt { font-size: .72rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.section--paper .contact-row dt, .section--paper-2 .contact-row dt { color: var(--muted-dark); }
.contact-row dd { font-size: var(--step-0); font-weight: 600; }
.contact-row a:hover { color: var(--coral); }

/* ---------- 21. Footer ---------- */
.footer { background: var(--ink); border-top: 1px solid var(--line); padding-block: clamp(3rem, 6vw, 5rem) 2.5rem; }
.footer__top { display: grid; grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr)); gap: clamp(1.6rem, 4vw, 3rem); }
.footer__brand img { height: 42px; width: auto; }
.footer__blurb { margin-top: 1.3rem; max-width: 34ch; color: var(--muted); font-size: .9rem; line-height: 1.65; }
.footer h5 { font-size: .72rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin-bottom: 1rem; }
.footer li { padding: .3rem 0; }
.footer a { font-size: .9rem; color: rgba(247,245,242,.82); transition: color .3s; }
.footer a:hover { color: var(--coral); }
.footer__bottom {
  margin-top: clamp(2.5rem, 5vw, 4rem);
  padding-top: 1.6rem;
  border-top: 1px solid var(--line);
  display: flex; flex-wrap: wrap; gap: 1rem;
  justify-content: space-between; align-items: center;
  font-size: .8rem; color: var(--muted);
}
.footer__social { display: flex; gap: .6rem; }
.footer__social a {
  width: 34px; height: 34px; display: grid; place-items: center;
  border: 1px solid var(--line); border-radius: 999px;
  transition: border-color .3s, background .3s, color .3s;
}
.footer__social a:hover { border-color: var(--coral); background: var(--coral); color: #fff; }
.footer__social svg { width: 15px; height: 15px; }

/* ---------- 22. Page hero (subpages) ---------- */
.page-hero { position: relative; background: var(--ink); padding-top: clamp(8rem, 15vh, 11rem); padding-bottom: clamp(2.5rem, 5vw, 4rem); overflow: hidden; }
.page-hero__glow { position: absolute; width: 40vw; height: 40vw; border-radius: 50%; filter: blur(100px); opacity: .38; background: rgba(235,96,5,.5); top: -14vw; right: -6vw; }
.page-hero .h1 { margin-top: 1.2rem; }
.page-hero .lead { margin-top: 1.4rem; }
.crumbs { display: flex; gap: .5rem; align-items: center; font-size: .78rem; color: var(--muted); }
.crumbs a:hover { color: var(--coral); }

/* ---------- 23. Reveal animation ---------- */
[data-reveal] { opacity: 0; transform: translateY(22px); transition: opacity .8s var(--ease-out), transform .8s var(--ease-out); transition-delay: var(--d, 0ms); }
[data-reveal].is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  [data-reveal] { opacity: 1; transform: none; }
}

/* ---------- 24. Responsive ---------- */
@media (max-width: 1080px) {
  .nav { display: none; }
  .burger { display: grid; }
  .header__actions .btn { display: none; }
  .footer__top { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .work-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .work, .work--wide, .work--full { grid-column: span 1; }
  .roadmap { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .stats { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .stat:nth-child(2) { border-right: 0; }
  .stat:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .section--paper .stat:nth-child(-n+2), .section--paper-2 .stat:nth-child(-n+2) { border-bottom-color: var(--line-dark); }
}

@media (max-width: 860px) {
  .grid--3, .grid--4, .grid--2 { grid-template-columns: minmax(0,1fr); }
  .sec-head--split { grid-template-columns: minmax(0,1fr); align-items: start; }
  .feature { grid-template-columns: minmax(0,1fr); }
  .feature--flip .feature__media { order: 0; }
  .feature__media { aspect-ratio: 16/10; }
  .hero__foot { grid-template-columns: minmax(0,1fr); align-items: start; }
  .hero__metrics { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .metric { padding-right: 0; }
  .metric:nth-child(2n) { border-right: 0; }
  .metric:nth-child(-n+2) { border-bottom: 1px solid var(--line); padding-bottom: 1.3rem; }
  .metric:nth-child(n+3) { padding-top: 1.3rem; }
  .case__head { grid-template-columns: minmax(0,1fr); }
  .case__gallery { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .form__row { grid-template-columns: minmax(0,1fr); }
  .contact-row { grid-template-columns: minmax(0,1fr); gap: .3rem; }
  .footer__top { grid-template-columns: minmax(0,1fr); }
}

@media (max-width: 560px) {
  .work-grid { grid-template-columns: minmax(0,1fr); }
  .roadmap { grid-template-columns: minmax(0,1fr); }
  .step { padding-right: 0; }
  .case__gallery { grid-template-columns: minmax(0,1fr); }
  .case__facts { grid-template-columns: minmax(0,1fr); }
  .stats { grid-template-columns: minmax(0,1fr); }
  .stat { border-right: 0; border-bottom: 1px solid var(--line); }
  .stat:last-child { border-bottom: 0; }
  .hero__metrics { grid-template-columns: minmax(0,1fr); }
  .metric { border-right: 0; border-bottom: 1px solid var(--line); padding-bottom: 1.2rem; }
  .metric:nth-child(n+3) { padding-top: 0; }
  .metric:last-child { border-bottom: 0; }
}

/* ---------- 25. Print ---------- */
@media print {
  .header, .drawer, .marquee, .cta__glow { display: none !important; }
  body { background: #fff; color: #000; }
  [data-reveal] { opacity: 1; transform: none; }
}