/* ==========================================================================
   SHANGHAI SEDA UK LTD — Design System
   Classic British professional-services aesthetic
   ========================================================================== */

/* ---------- 1. Tokens ---------- */
:root {
  /* Palette: ink navy + heritage green + warm parchment + antique brass */  --ink:        #101c26;
  --ink-soft:   #1c2f3d;
  --navy:       #14283a;
  --green:      #16332b;
  --green-soft: #1f4438;
  --brass:      #b08d57;
  --brass-lt:   #cdae7c;
  --parchment:  #f6f3ec;
  --parchment-2:#efeae0;
  --paper:      #ffffff;
  --line:       #ddd6c8;
  --line-dark:  rgba(255,255,255,.16);
  --text:       #1a2329;
  --text-2:     #55636d;
  --text-3:     #86929a;

  /* Type */
  --serif: "Cormorant Garamond", "Playfair Display", Georgia, "Times New Roman", serif;
  --sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", sans-serif;
  /* Chinese faces appended so CJK glyphs stay serif / sans consistently */
  --serif-cjk: "Cormorant Garamond", "Noto Serif SC", "Songti SC", "SimSun", Georgia, serif;
  --sans-cjk:  "Inter", -apple-system, "PingFang SC", "Hiragino Sans GB",
               "Microsoft YaHei", "Noto Sans SC", sans-serif;

  /* Layout */
  --wrap: 1180px;
  --gutter: clamp(20px, 5vw, 56px);
  --radius: 2px;

  --ease: cubic-bezier(.22,.61,.36,1);
  --shadow-sm: 0 1px 2px rgba(16,28,38,.06), 0 4px 14px rgba(16,28,38,.05);
  --shadow-md: 0 2px 6px rgba(16,28,38,.07), 0 18px 44px rgba(16,28,38,.10);
}

/* ---------- 2. Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 16.5px;
  line-height: 1.72;
  color: var(--text);
  background: var(--parchment);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
h1, h2, h3, h4, p, figure, blockquote { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
:focus-visible { outline: 2px solid var(--brass); outline-offset: 3px; }

/* CJK typography: switch to the CJK-capable stacks and rebalance metrics */
html[data-lang="zh"] body { font-family: var(--sans-cjk); }
html[data-lang="zh"] h1,
html[data-lang="zh"] h2,
html[data-lang="zh"] h3,
html[data-lang="zh"] h4,
html[data-lang="zh"] .brand__name,
html[data-lang="zh"] .fact__k,
html[data-lang="zh"] .office__city,
html[data-lang="zh"] .form-card__title,
html[data-lang="zh"] .step__t,
html[data-lang="zh"] .svc__title,
html[data-lang="zh"] .why__t { font-family: var(--serif-cjk); }

html[data-lang="zh"] .display {
  font-size: clamp(2.3rem, 5.2vw, 4.15rem);
  line-height: 1.22;
  letter-spacing: .01em;
  font-weight: 500;
}
html[data-lang="zh"] .h2 {
  font-size: clamp(1.75rem, 3.2vw, 2.6rem);
  line-height: 1.32;
  letter-spacing: .01em;
  font-weight: 500;
}
html[data-lang="zh"] .display em { font-style: normal; }
html[data-lang="zh"] .lede { line-height: 1.9; }
html[data-lang="zh"] .eyebrow { letter-spacing: .14em; }
html[data-lang="zh"] .btn { letter-spacing: .12em; }
html[data-lang="zh"] .svc__desc,
html[data-lang="zh"] .why__d,
html[data-lang="zh"] .step__d { line-height: 1.85; }

/* ---------- 3. Typography ---------- */
h1, h2, h3, h4 { font-family: var(--serif); font-weight: 500; line-height: 1.14; letter-spacing: -.01em; }

.display {
  font-size: clamp(2.2rem, 5.05vw, 4.45rem);
  line-height: 1.06;
  letter-spacing: -.02em;
  font-weight: 400;
}
.display br { display: none; }
.display .nb { white-space: nowrap; }
@media (min-width: 1100px) { .display br { display: inline; } }
.h2 { font-size: clamp(2rem, 3.9vw, 3.15rem); letter-spacing: -.015em; }
.h3 { font-size: clamp(1.35rem, 2vw, 1.6rem); }
.lede {
  font-size: clamp(1.02rem, 1.35vw, 1.16rem);
  line-height: 1.78;
  color: var(--text-2);
  max-width: 62ch;
}

/* Eyebrow / kicker */
.eyebrow {
  font-family: var(--sans);
  font-size: .70rem;
  font-weight: 600;
  letter-spacing: .19em;
  text-transform: uppercase;
  color: var(--brass);
  display: flex;
  align-items: center;
  gap: .85rem;
}
.eyebrow::before {
  content: "";
  width: 34px; height: 1px;
  background: currentColor;
  opacity: .6;
  flex: none;
}
.eyebrow--center { justify-content: center; }
.eyebrow--plain::before { display: none; }

/* ---------- 4. Layout helpers ---------- */
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
section { position: relative; }
.section { padding-block: clamp(72px, 9vw, 130px); }
.section--tight { padding-block: clamp(56px, 6.5vw, 90px); }

.section-head { max-width: 700px; }
.section-head .h2 { margin-top: 1.1rem; }
.section-head .lede { margin-top: 1.25rem; }

.rule { height: 1px; background: var(--line); border: 0; margin: 0; }

/* ---------- 5. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  padding: .95rem 1.85rem;
  font-family: var(--sans);
  font-size: .80rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background .35s var(--ease), color .35s var(--ease),
              border-color .35s var(--ease), transform .35s var(--ease);
  white-space: nowrap;
}
.btn svg { width: 15px; height: 15px; flex: none; transition: transform .35s var(--ease); }
.btn:hover svg { transform: translateX(4px); }

.btn--solid { background: var(--green); color: #fff; border-color: var(--green); }
.btn--solid:hover { background: var(--green-soft); border-color: var(--green-soft); }

.btn--brass { background: var(--brass); color: #fff; border-color: var(--brass); }
.btn--brass:hover { background: var(--brass-lt); border-color: var(--brass-lt); }

.btn--ghost { background: transparent; color: var(--ink); border-color: rgba(16,28,38,.32); }
.btn--ghost:hover { border-color: var(--ink); background: var(--ink); color: #fff; }

.btn--ghost-light { background: transparent; color: #fff; border-color: rgba(255,255,255,.42); }
.btn--ghost-light:hover { background: #fff; color: var(--ink); border-color: #fff; }

/* Text link with underline animation */
.tlink {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-size: .80rem;
  font-weight: 600;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--green);
  padding-bottom: 3px;
  border-bottom: 1px solid rgba(22,51,43,.3);
  transition: border-color .3s var(--ease), color .3s var(--ease);
}
.tlink:hover { border-color: var(--green); }
.tlink svg { width: 14px; height: 14px; transition: transform .3s var(--ease); }
.tlink:hover svg { transform: translateX(4px); }

/* ==========================================================================
   6. Header
   ========================================================================== */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 900;
  transition: background .45s var(--ease), box-shadow .45s var(--ease),
              border-color .45s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header__inner {
  display: flex;
  align-items: center;
  gap: 2rem;
  min-height: 84px;
  transition: min-height .45s var(--ease);
}

/* Transparent state (over hero) */
.site-header--top { background: linear-gradient(180deg, rgba(9,18,25,.55), rgba(9,18,25,0)); }
.site-header--top .brand__name,
.site-header--top .brand__meta,
.site-header--top .nav__link,
.site-header--top .lang__btn,
.site-header--top .header-phone { color: #fff; }
.site-header--top .brand__mark { border-color: rgba(255,255,255,.35); }
.site-header--top .header-phone svg { color: var(--brass-lt); }
.site-header--top .nav__link::after { background: var(--brass-lt); }
.site-header--top .lang { border-color: rgba(255,255,255,.28); }

/* Solid state (scrolled) */
.site-header--solid {
  background: rgba(246,243,236,.94);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  backdrop-filter: blur(14px) saturate(1.4);
  border-bottom-color: var(--line);
  box-shadow: 0 1px 20px rgba(16,28,38,.06);
}
.site-header--solid .site-header__inner { min-height: 72px; }

/* Brand */
.brand { display: flex; align-items: center; gap: .85rem; flex: none; }
.brand__mark {
  width: 40px; height: 40px;
  border: 1px solid var(--brass);
  display: grid; place-items: center;
  font-family: var(--serif);
  font-size: 1.05rem;
  letter-spacing: .02em;
  color: var(--brass);
  flex: none;
  transition: border-color .45s var(--ease);
}
.brand__text { display: flex; flex-direction: column; line-height: 1.16; }
.brand__name {
  font-family: var(--serif);
  font-size: 1.16rem;
  font-weight: 600;
  letter-spacing: .055em;
  text-transform: uppercase;
  transition: color .45s var(--ease);
}
.brand__meta {
  font-size: .60rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-top: .28rem;
  transition: color .45s var(--ease);
}
.site-header--top .brand__meta { color: rgba(255,255,255,.62); }

/* Nav */
.nav { margin-left: auto; }
.nav__list { display: flex; align-items: center; gap: clamp(1rem, 2.1vw, 2rem); }
.nav__link {
  position: relative;
  font-size: .80rem;
  font-weight: 500;
  letter-spacing: .075em;
  text-transform: uppercase;
  padding-block: .4rem;
  transition: color .3s var(--ease);
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 1px;
  background: var(--brass);
  transition: width .35s var(--ease);
}
.nav__link:hover::after { width: 100%; }
.site-header--solid .nav__link:hover { color: var(--green); }

/* Header utilities */
.header-tools { display: flex; align-items: center; gap: 1.15rem; flex: none; }

.lang {
  display: flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .45s var(--ease);
}
.lang__btn {
  background: none;
  border: 0;
  cursor: pointer;
  padding: .38rem .62rem;
  font-size: .70rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-3);
  transition: background .3s var(--ease), color .3s var(--ease);
}
.lang__btn:hover { color: var(--ink); }
.site-header--top .lang__btn:hover { color: #fff; }
.lang__btn.is-active { background: var(--brass); color: #fff; }
.site-header--top .lang__btn.is-active { background: var(--brass); color: #fff; }

.header-phone {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .82rem;
  font-weight: 500;
  letter-spacing: .02em;
  transition: color .3s var(--ease);
}
.header-phone svg { width: 14px; height: 14px; color: var(--brass); }
.header-phone:hover { color: var(--brass); }

/* Mobile toggle */
.burger {
  display: none;
  width: 42px; height: 42px;
  background: none;
  border: 1px solid currentColor;
  color: var(--ink);
  cursor: pointer;
  position: relative;
  flex: none;
}
.site-header--top .burger { color: #fff; border-color: rgba(255,255,255,.4); }
.burger span {
  position: absolute;
  left: 50%; 
  width: 18px; height: 1px;
  background: currentColor;
  transform: translateX(-50%);
  transition: transform .3s var(--ease), opacity .2s var(--ease);
}
.burger span:nth-child(1) { top: 15px; }
.burger span:nth-child(2) { top: 20.5px; }
.burger span:nth-child(3) { top: 26px; }
body.nav-open .burger span:nth-child(1) { transform: translateX(-50%) translateY(5.5px) rotate(45deg); }
body.nav-open .burger span:nth-child(2) { opacity: 0; }
body.nav-open .burger span:nth-child(3) { transform: translateX(-50%) translateY(-5.5px) rotate(-45deg); }

/* ==========================================================================
   7. Hero
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  padding-top: 120px;
  padding-bottom: clamp(56px, 8vh, 90px);
  overflow: hidden;
  background: var(--ink);
  isolation: isolate;
}
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
}
.hero__bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center 42%;
  animation: heroZoom 26s var(--ease) forwards;
}
@keyframes heroZoom {
  from { transform: scale(1.07); }
  to   { transform: scale(1); }
}
.hero__bg::after {
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(8,17,24,.62) 0%, rgba(8,17,24,.28) 38%, rgba(8,17,24,.78) 100%),
    linear-gradient(90deg, rgba(9,22,31,.72) 0%, rgba(9,22,31,.18) 62%);
}
.hero__inner { position: relative; width: 100%; }
.hero__content { max-width: 830px; color: #fff; }

.hero__eyebrow {
  color: var(--brass-lt);
  margin-bottom: 1.6rem;
}
.hero .display { color: #fff; }
.hero .display em {
  font-style: italic;
  color: var(--brass-lt);
}
.hero__sub {
  margin-top: 1.7rem;
  font-size: clamp(1rem, 1.35vw, 1.14rem);
  line-height: 1.8;
  color: rgba(255,255,255,.80);
  max-width: 58ch;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .9rem;
  margin-top: 2.4rem;
}

/* Hero facts strip */
.hero__facts {
  margin-top: clamp(3rem, 6vh, 4.8rem);
  padding-top: 1.85rem;
  border-top: 1px solid rgba(255,255,255,.22);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem 2rem;
}
.fact__k {
  display: block;
  font-family: var(--serif);
  font-size: clamp(1.35rem, 2.1vw, 1.72rem);
  color: #fff;
  line-height: 1.1;
}
.fact__l {
  display: block;
  margin-top: .38rem;
  font-size: .68rem;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: rgba(255,255,255,.58);
}

/* Scroll cue */
.scroll-cue {
  position: absolute;
  right: var(--gutter);
  bottom: clamp(56px, 8vh, 90px);
  display: flex;
  align-items: center;
  gap: .7rem;
  font-size: .64rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: rgba(255,255,255,.55);
  writing-mode: vertical-rl;
}
.scroll-cue::after {
  content: "";
  width: 1px; height: 54px;
  background: linear-gradient(180deg, rgba(255,255,255,.55), transparent);
  animation: cue 2.4s var(--ease) infinite;
}
@keyframes cue {
  0%,100% { opacity: .25; transform: scaleY(.55); transform-origin: top; }
  50%     { opacity: 1; transform: scaleY(1); transform-origin: top; }
}

/* ==========================================================================
   8. Intro / trust bar
   ========================================================================== */
.intro { background: var(--parchment); }
.intro__grid {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: start;
}
.intro__body > p + p { margin-top: 1.15rem; }
.intro__body { color: var(--text-2); }
.intro__sig {
  margin-top: 2.2rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 2.4rem;
}
.sig__k { font-family: var(--serif); font-size: 1.1rem; color: var(--ink); display: block; }
.sig__l { font-size: .68rem; letter-spacing: .13em; text-transform: uppercase; color: var(--text-3); display: block; margin-top: .2rem; }

/* ==========================================================================
   9. Services
   ========================================================================== */
.services { background: var(--paper); }
.services__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2.5rem;
  flex-wrap: wrap;
  margin-bottom: clamp(2.6rem, 5vw, 4rem);
}
.svc-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.svc {
  position: relative;
  background: var(--paper);
  padding: clamp(2rem, 3.2vw, 2.9rem);
  display: grid;
  /* num | icon | title | desc | list — shared rows keep the three cards aligned */
  grid-template-rows: auto auto auto minmax(7.8rem, auto) auto;
  transition: background .45s var(--ease);
  overflow: hidden;
}
.svc::before {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 2px;
  background: var(--brass);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .5s var(--ease);
}
.svc:hover { background: var(--parchment); }
.svc:hover::before { transform: scaleX(1); }

.svc__num {
  font-family: var(--serif);
  font-size: .82rem;
  letter-spacing: .18em;
  color: var(--brass);
  margin-bottom: 1.75rem;
}
.svc__icon {
  width: 44px; height: 44px;
  color: var(--green);
  margin-bottom: 1.4rem;
}
.svc__icon svg { width: 100%; height: 100%; stroke-width: 1.1; }
.svc__title { font-family: var(--serif); font-size: 1.42rem; margin-bottom: .85rem; color: var(--ink); }
.svc__desc { font-size: .93rem; line-height: 1.78; color: var(--text-2); margin-bottom: 0; }
.svc__list { margin-top: 1.5rem; display: grid; gap: .55rem; align-content: start; }
.svc__list li {
  position: relative;
  padding-left: 1.15rem;
  font-size: .855rem;
  color: var(--text-2);
  line-height: 1.6;
}
.svc__list li::before {
  content: "";
  position: absolute;
  left: 0; top: .68em;
  width: 5px; height: 1px;
  background: var(--brass);
}

/* ==========================================================================
   10. Process
   ========================================================================== */
.process { background: var(--green); color: #fff; overflow: hidden; }
.process .eyebrow { color: var(--brass-lt); }
.process .h2 { color: #fff; }
.process .lede { color: rgba(255,255,255,.68); }
.process__head { max-width: 640px; margin-bottom: clamp(2.8rem, 5vw, 4.2rem); }

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid rgba(255,255,255,.16);
}
.step {
  padding: 2.1rem 1.9rem 0 0;
  border-right: 1px solid rgba(255,255,255,.11);
  position: relative;
}
.step:last-child { border-right: 0; padding-right: 0; }
.step__n {
  font-family: var(--serif);
  font-size: 2.6rem;
  line-height: 1.1;
  color: rgba(255,255,255,.42);
  margin-bottom: 1.1rem;
  transition: color .45s var(--ease);
}
.step:hover .step__n { color: var(--brass-lt); }
.step__t { font-family: var(--serif); font-size: 1.22rem; color: #fff; margin-bottom: .6rem; }
.step__d { font-size: .87rem; line-height: 1.72; color: rgba(255,255,255,.62); }

/* ==========================================================================
   11. About / Why us
   ========================================================================== */
.about { background: var(--parchment); }
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2.5rem, 6vw, 5.5rem);
  align-items: center;
}
.about__media { position: relative; margin: 0 18px 18px 0; }
.about__media img {
  width: 100%;
  height: clamp(380px, 44vw, 520px);
  object-fit: cover;
  filter: saturate(.92) contrast(1.02);
  position: relative;
  z-index: 1;
}
.about__media::after {
  content: "";
  position: absolute;
  inset: 18px -18px -18px 18px;
  border: 1px solid var(--brass);
  opacity: .55;
  z-index: 0;
}
.about__badge {
  position: absolute;
  left: -1px; bottom: -1px;
  background: var(--green);
  color: #fff;
  padding: 1.15rem 1.5rem;
  max-width: 230px;
}
.about__badge .k { font-family: var(--serif); font-size: 1.5rem; display: block; line-height: 1.1; }
.about__badge .l { font-size: .64rem; letter-spacing: .14em; text-transform: uppercase; color: rgba(255,255,255,.62); display: block; margin-top: .4rem; }

.why { display: grid; gap: 0; margin-top: 2.4rem; border-top: 1px solid var(--line); }
.why__item {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 1.05rem;
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--line);
}
.why__item svg { width: 20px; height: 20px; color: var(--brass); margin-top: .22rem; }
.why__t { font-family: var(--serif); font-size: 1.1rem; color: var(--ink); }
.why__d { font-size: .89rem; color: var(--text-2); margin-top: .25rem; line-height: 1.68; }

/* ==========================================================================
   12. Offices
   ========================================================================== */
.offices { background: var(--paper); }
.offices__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-top: clamp(2.4rem, 4vw, 3.4rem);
}
.office { background: var(--paper); overflow: hidden; }
.office__img { height: 240px; overflow: hidden; }
.office__img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 1.1s var(--ease);
  filter: saturate(.9);
}
.office:hover .office__img img { transform: scale(1.045); }
.office__body { padding: clamp(1.8rem, 3vw, 2.5rem); }
.office__city {
  font-family: var(--serif);
  font-size: 1.55rem;
  color: var(--ink);
  display: flex;
  align-items: baseline;
  gap: .7rem;
}
.office__city span {
  font-family: var(--sans);
  font-size: .64rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--brass);
  font-weight: 600;
}
.office__addr {
  margin-top: .85rem;
  font-size: .94rem;
  line-height: 1.75;
  color: var(--text-2);
  font-style: normal;
}
.office__meta {
  margin-top: 1.35rem;
  padding-top: 1.15rem;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.4rem;
  font-size: .82rem;
  color: var(--text-2);
}
.office__meta a { display: inline-flex; align-items: center; gap: .4rem; transition: color .3s var(--ease); }
.office__meta a:hover { color: var(--green); }
.office__meta svg { width: 13px; height: 13px; color: var(--brass); }

/* ==========================================================================
   13. CTA band
   ========================================================================== */
.cta {
  background: var(--ink);
  color: #fff;
  text-align: center;
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 50% 0%, rgba(176,141,87,.18), transparent 62%);
  z-index: -1;
}
.cta .h2 { color: #fff; margin-top: 1.2rem; }
.cta .lede { color: rgba(255,255,255,.66); margin-inline: auto; margin-top: 1.3rem; text-align: center; }
.cta__actions { display: flex; flex-wrap: wrap; gap: .9rem; justify-content: center; margin-top: 2.3rem; }
.cta .eyebrow { color: var(--brass-lt); }

/* ==========================================================================
   14. Contact
   ========================================================================== */
.contact { background: var(--parchment); }
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}
.contact__list { margin-top: 2.4rem; display: grid; gap: 0; border-top: 1px solid var(--line); }
.contact__row {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 1rem;
  padding: 1.3rem 0;
  border-bottom: 1px solid var(--line);
}
.contact__row svg { width: 17px; height: 17px; color: var(--brass); margin-top: .3rem; }
.contact__k {
  font-size: .66rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--text-3);
  font-weight: 600;
  margin-bottom: .28rem;
}
.contact__v { font-size: .98rem; color: var(--ink); line-height: 1.6; }
.contact__v a { transition: color .25s var(--ease); }
.contact__v a:hover { color: var(--green); text-decoration: underline; text-underline-offset: 3px; }

/* Form */
.form-card {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: clamp(1.8rem, 3.4vw, 2.9rem);
  box-shadow: var(--shadow-sm);
}
.form-card__title { font-family: var(--serif); font-size: 1.5rem; color: var(--ink); }
.form-card__sub { font-size: .87rem; color: var(--text-2); margin-top: .5rem; margin-bottom: 1.9rem; }

.field { margin-bottom: 1.15rem; }
.field label {
  display: block;
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--text-2);
  margin-bottom: .5rem;
}
.field label .req { color: var(--brass); }
.field input,
.field select,
.field textarea {
  width: 100%;
  font-family: var(--sans);
  font-size: .93rem;
  color: var(--text);
  background: #fdfcfa;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: .78rem .9rem;
  transition: border-color .3s var(--ease), background .3s var(--ease), box-shadow .3s var(--ease);
  -webkit-appearance: none;
  appearance: none;
}
.field textarea { resize: vertical; min-height: 120px; line-height: 1.65; }
.field select {
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2355636d' stroke-width='1.6'%3e%3cpath d='M6 9l6 6 6-6'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right .85rem center;
  background-size: 15px;
  padding-right: 2.3rem;
  cursor: pointer;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  background: #fff;
  border-color: var(--brass);
  box-shadow: 0 0 0 3px rgba(176,141,87,.12);
}
.field input::placeholder,
.field textarea::placeholder { color: #a8b1b8; }

.field--row { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1rem; }

.form-note {
  font-size: .76rem;
  line-height: 1.65;
  color: var(--text-3);
  margin-top: 1rem;
}
.form-status {
  margin-top: 1rem;
  padding: .85rem 1rem;
  font-size: .85rem;
  border-left: 2px solid var(--brass);
  background: rgba(176,141,87,.08);
  color: var(--text);
  display: none;
}
.form-status.is-visible { display: block; }

/* ==========================================================================
   15. Footer
   ========================================================================== */
.site-footer {
  background: var(--ink);
  color: rgba(255,255,255,.62);
  font-size: .875rem;
  padding-top: clamp(56px, 7vw, 84px);
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: clamp(2rem, 4vw, 3.5rem);
  padding-bottom: clamp(2.6rem, 5vw, 3.8rem);
}
.site-footer .brand { margin-bottom: 1.35rem; }
.site-footer .brand__name { color: #fff; }
.site-footer .brand__meta { color: rgba(255,255,255,.45); }
.footer__about { max-width: 34ch; line-height: 1.75; }
.footer__h {
  font-family: var(--sans);
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 1.15rem;
}
.footer__links { display: grid; gap: .68rem; }
.footer__links a { transition: color .28s var(--ease); }
.footer__links a:hover { color: var(--brass-lt); }
.footer__addr { line-height: 1.75; font-style: normal; }
.footer__addr strong { color: rgba(255,255,255,.86); font-weight: 500; display: block; margin-bottom: .2rem; }
.footer__addr + .footer__addr { margin-top: 1.1rem; }

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-block: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: .8rem 2rem;
  justify-content: space-between;
  align-items: center;
  font-size: .78rem;
  color: rgba(255,255,255,.42);
}
.footer__legal { display: flex; flex-wrap: wrap; gap: 1.4rem; }
.footer__legal a:hover { color: var(--brass-lt); }

/* ==========================================================================
   16. Reveal on scroll
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .85s var(--ease), transform .85s var(--ease);
  will-change: opacity, transform;
}
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-d="1"] { transition-delay: .09s; }
.reveal[data-d="2"] { transition-delay: .18s; }
.reveal[data-d="3"] { transition-delay: .27s; }
.reveal[data-d="4"] { transition-delay: .36s; }

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

/* ==========================================================================
   17. Responsive
   ========================================================================== */
@media (max-width: 1024px) {
  .intro__grid { grid-template-columns: 1fr; gap: 2.2rem; }
  .about__grid { grid-template-columns: 1fr; gap: 2.6rem; }
  .about__media { order: -1; }
  .about__media::after { inset: 14px -14px -14px 14px; }
  .contact__grid { grid-template-columns: 1fr; gap: 2.6rem; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .step { padding: 1.9rem 1.7rem 1.9rem 0; }
  .step:nth-child(2) { border-right: 0; }
  .step:nth-child(1), .step:nth-child(2) { border-bottom: 1px solid rgba(255,255,255,.11); }
  .step:nth-child(3) { padding-left: 0; }
  .svc-grid { grid-template-columns: 1fr; }
  .hero__facts { grid-template-columns: 1fr 1fr; gap: 1.4rem; }
  .scroll-cue { display: none; }
}

@media (max-width: 860px) {
  .site-header { z-index: 960; }
  .site-header__inner { position: relative; z-index: 970; }
  .nav {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(86vw, 360px);
    background: var(--ink);
    padding: 96px 2rem 2rem;
    transform: translateX(100%);
    transition: transform .45s var(--ease);
    z-index: 955;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
  }
  body.nav-open .nav { transform: translateX(0); box-shadow: -20px 0 60px rgba(0,0,0,.35); }
  .nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav__link {
    display: block;
    font-family: var(--serif);
    font-size: 1.32rem;
    text-transform: none;
    letter-spacing: 0;
    color: rgba(255,255,255,.9) !important;
    padding: 1.05rem 0;
    border-bottom: 1px solid rgba(255,255,255,.11);
  }
  .nav__link::after { display: none; }
  .nav__link:hover { color: var(--brass-lt) !important; }

  .burger { display: block; margin-left: auto; order: 1; position: relative; z-index: 980; }
  .brand { position: relative; z-index: 980; }
  .header-tools { order: 2; margin-left: 0; position: relative; z-index: 980; }
  .header-tools .header-phone { display: none; }

  .nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(9,18,25,.5);
    opacity: 0;
    pointer-events: none;
    transition: opacity .4s var(--ease);
    z-index: 940;
  }
  body.nav-open .nav-overlay { opacity: 1; pointer-events: auto; }

  .site-header--top .burger { color: #fff; }
  body.nav-open .site-header { background: var(--ink); border-bottom-color: transparent; }
  body.nav-open .site-header .brand__name { color: #fff; }
  body.nav-open .site-header .brand__meta { color: rgba(255,255,255,.5); }

  .offices__grid { grid-template-columns: 1fr; }
  .hero { min-height: 92svh; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .site-header__inner { min-height: 68px; gap: 1rem; }
  .brand__mark { width: 34px; height: 34px; font-size: .9rem; }
  .brand__name { font-size: .96rem; letter-spacing: .04em; }
  .brand__meta { font-size: .54rem; letter-spacing: .12em; }
  .lang__btn { padding: .32rem .5rem; font-size: .64rem; }
  .hero { padding-top: 100px; padding-bottom: 40px; min-height: auto; }
  .hero__sub { font-size: .95rem; margin-top: 1.3rem; }
  .hero__actions { flex-direction: row; gap: .7rem; margin-top: 1.8rem; }
  .hero__actions .btn { flex: 1 1 auto; justify-content: center; padding-inline: 1.1rem; font-size: .72rem; }
  .hero__facts { grid-template-columns: 1fr 1fr; gap: 1.1rem 1rem; margin-top: 2rem; padding-top: 1.4rem; }
  .fact__k { font-size: 1.1rem; }
  .fact__l { font-size: .6rem; letter-spacing: .1em; }
  .steps { grid-template-columns: 1fr; border-top: 0; }
  .step { border-right: 0; border-top: 1px solid rgba(255,255,255,.13); padding: 1.5rem 0; }
  .step:nth-child(2) { border-bottom: 0; }
  .field--row { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; gap: 2.2rem; }
  .about__media img { height: 320px; }
  .about__media::after { display: none; }
  .services__head { align-items: flex-start; }
  .intro__sig { gap: 1.6rem; }
}