/* ==========================================================================
   FLEW Aero — v1 editorial snapshot
   Instrument Serif / Inter / ivory / signal orange
   ========================================================================== */

@font-face {
  font-family: "Inter";
  src: url("assets/fonts/inter-var.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --ink: #0b1418;
  --ink-soft: #122125;
  --paper: #ffffff;
  --paper-deep: #f7f6f3;
  --signal: #d95a2b;
  --signal-dark: #b9471f;
  --signal-text: #b23c14;
  --muted: #58625e;
  --muted-light: rgba(242, 239, 231, 0.62);
  --line: rgba(11, 20, 24, 0.16);
  --line-strong: rgba(11, 20, 24, 0.34);
  --line-light: rgba(242, 239, 231, 0.16);
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --serif: var(--sans);
  --mono: var(--sans);
  --container: 1440px;
  --gutter: clamp(20px, 4vw, 64px);
  --ease: cubic-bezier(0.22, 0.68, 0.2, 1);
  --header-h: 84px;
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  overflow-x: clip;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 1000;
  pointer-events: none;
  opacity: 0.012;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='.7'/%3E%3C/svg%3E");
}

body.menu-open { overflow: hidden; }

::selection { background: var(--signal); color: var(--ink); }

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }
h1, h2, h3, p, ul, ol, blockquote { margin: 0; }
ul, ol { padding: 0; list-style: none; }
em { font-style: italic; }

:focus-visible { outline: 2px solid var(--signal); outline-offset: 4px; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: fixed; top: 12px; left: 12px; z-index: 2000;
  transform: translateY(-160%); background: var(--ink); color: var(--paper);
  padding: 12px 18px; font-size: 13px; transition: transform 0.2s var(--ease);
}
.skip-link:focus { transform: translateY(0); }

.container { width: min(100% - (var(--gutter) * 2), var(--container)); margin-inline: auto; }

.display {
  font-family: var(--serif);
  font-size: clamp(42px, 5.1vw, 78px);
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: -0.025em;
}
.display em { font-style: italic; }
.display.light { color: var(--paper); }

.lede { font-size: clamp(18px, 1.55vw, 21px); line-height: 1.55; letter-spacing: -0.01em; }

.section { padding: clamp(88px, 10vw, 144px) 0; scroll-margin-top: calc(var(--header-h) - 1px); }

.section-grid, .section-head {
  display: grid;
  grid-template-columns: minmax(180px, 0.34fr) minmax(0, 1fr);
  gap: clamp(32px, 6vw, 96px);
  align-items: start;
}
.section-head { margin-bottom: clamp(52px, 6vw, 80px); }

.section-head-copy {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(220px, 0.65fr);
  gap: clamp(28px, 4vw, 64px);
  align-items: end;
}
.section-head-copy .display { max-width: 820px; }
.section-intro { max-width: 360px; padding-bottom: 6px; font-size: 14px; line-height: 1.65; color: var(--muted); }

.section-label {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--mono); font-size: 10.5px; font-weight: 500;
  line-height: 1.4; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted);
}
.section-label span { color: var(--signal-text); letter-spacing: 0.08em; }
.section-label.light { color: var(--muted-light); }
.section-label.light span { color: var(--signal); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 18px;
  min-height: 52px; padding: 14px 22px; border: 1px solid var(--ink); border-radius: 1px;
  background: var(--ink); color: var(--paper); font-size: 11.5px; font-weight: 600;
  line-height: 1; letter-spacing: 0.1em; text-transform: uppercase;
  transition: background-color 0.25s var(--ease), border-color 0.25s var(--ease), color 0.25s var(--ease);
}
.btn span { font-size: 15px; line-height: 1; transition: transform 0.25s var(--ease); }
.btn:hover { background: var(--signal-dark); border-color: var(--signal-dark); color: #fff; }
.btn:hover span { transform: translate(2px, -2px); }
.btn-header { min-height: 42px; padding: 11px 16px; font-size: 10px; gap: 14px; }

.text-link {
  display: inline-flex; align-items: center; gap: 10px; padding-bottom: 4px;
  border-bottom: 1px solid var(--line-strong); font-size: 12px; font-weight: 500;
  letter-spacing: 0.06em; text-transform: uppercase;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.text-link:hover { color: var(--signal-text); border-color: var(--signal-text); }
.text-link-arrow { font-size: 14px; line-height: 1; transition: transform 0.25s var(--ease); }
.text-link:hover .text-link-arrow { transform: translate(2px, -2px); }
.text-link.light { color: var(--paper); border-color: var(--line-light); }
.text-link.light:hover { color: var(--signal); border-color: var(--signal); }

/* Header */
.site-header {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background-color 0.3s var(--ease), border-color 0.3s var(--ease), backdrop-filter 0.3s var(--ease);
}
.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.94);
  border-bottom-color: var(--line);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 28px; height: var(--header-h); }
.brand { position: relative; z-index: 110; display: inline-flex; align-items: center; gap: 11px; flex: 0 0 auto; color: var(--ink); }
.brand-mark { width: 27px; height: 27px; flex: 0 0 auto; }
.brand-text { font-size: 13px; font-weight: 700; letter-spacing: 0.19em; line-height: 1; }
.brand-text span { font-weight: 400; color: var(--muted); }

.nav { display: flex; align-items: center; gap: clamp(24px, 2.8vw, 42px); margin-left: auto; }
.nav a {
  position: relative; padding: 6px 0; font-size: 12px; font-weight: 500;
  letter-spacing: 0.02em; color: var(--muted); transition: color 0.2s var(--ease);
}
.nav a::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 100%; height: 1px;
  background: var(--signal); transform: scaleX(0); transform-origin: right;
  transition: transform 0.28s var(--ease);
}
.nav a:hover, .nav a.is-active { color: var(--ink); }
.nav a:hover::after, .nav a.is-active::after { transform: scaleX(1); transform-origin: left; }
.nav .nav-mobile-cta { display: none; }

.menu-toggle {
  display: none; position: relative; z-index: 110; width: 42px; height: 42px;
  margin-right: -9px; border: 0; background: transparent; padding: 10px 9px;
}
.menu-toggle span {
  display: block; width: 24px; height: 1.5px; margin: 5px 0;
  background: var(--ink); transition: transform 0.25s var(--ease), opacity 0.2s var(--ease);
}
.menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3.25px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.25px) rotate(-45deg); }

/* Hero */
.hero {
  position: relative; display: flex; align-items: center; min-height: 100svh;
  padding: calc(var(--header-h) + 30px) 0 30px;
}
.hero-grid {
  display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(400px, 0.74fr);
  gap: clamp(32px, 4.5vw, 72px); align-items: stretch;
}
.hero-copy { display: flex; flex-direction: column; justify-content: center; padding: 20px 0 26px; }
.eyebrow {
  display: flex; align-items: center; gap: 12px; font-family: var(--mono);
  font-size: 10.5px; font-weight: 500; line-height: 1.4; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--muted);
}
.eyebrow-dot { width: 6px; height: 6px; flex: 0 0 auto; background: var(--signal); border-radius: 50%; box-shadow: 0 0 0 4px rgba(227, 90, 43, 0.12); }

.hero h1 {
  margin: 22px 0 28px; font-family: var(--serif);
  font-size: clamp(66px, 8.5vw, 134px); font-weight: 400;
  line-height: 0.84; letter-spacing: -0.035em;
}
.hero h1 em { font-style: italic; }
.hero h1 .accent { color: var(--signal); }
.hero-lead { max-width: 550px; font-size: clamp(16px, 1.25vw, 18px); line-height: 1.65; color: var(--muted); }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 26px; margin-top: 36px; }
.hero-proof {
  display: grid; grid-template-columns: repeat(3, auto); justify-content: start; gap: 0;
  margin-top: clamp(46px, 5vw, 66px); padding-top: 18px; border-top: 1px solid var(--line);
}
.hero-proof li {
  position: relative; padding: 0 22px; font-family: var(--mono); font-size: 9.5px;
  line-height: 1.5; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted);
}
.hero-proof li:first-child { padding-left: 0; }
.hero-proof li + li::before {
  content: ""; position: absolute; top: 2px; left: 0; width: 1px; height: 11px; background: var(--line);
}

/* Hero technical panel */
.hero-visual {
  position: relative; display: flex; flex-direction: column; justify-content: space-between;
  min-height: 660px; padding: 22px; overflow: hidden; color: var(--paper);
  background: radial-gradient(circle at 76% 18%, rgba(227, 90, 43, 0.12), transparent 30%), var(--ink);
  isolation: isolate;
}
.hero-visual::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background-image: linear-gradient(rgba(242, 239, 231, 0.035) 1px, transparent 1px), linear-gradient(90deg, rgba(242, 239, 231, 0.035) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, 0.2) 75%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, 0.2) 75%, transparent 100%);
}
.hero-visual::after { content: ""; position: absolute; inset: 10px; z-index: -1; border: 1px solid rgba(242, 239, 231, 0.08); pointer-events: none; }

.panel-top {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding-bottom: 15px; border-bottom: 1px solid var(--line-light);
  font-family: var(--mono); font-size: 8.5px; line-height: 1.3; letter-spacing: 0.13em; text-transform: uppercase;
}
.panel-label { color: var(--muted-light); }
.panel-status { display: inline-flex; align-items: center; gap: 7px; color: var(--paper); }
.panel-status i { width: 5px; height: 5px; background: #b9d68a; border-radius: 50%; box-shadow: 0 0 0 3px rgba(185, 214, 138, 0.12); }

.panel-drawing { position: absolute; inset: 54px 0 92px; display: flex; align-items: center; justify-content: center; }
.drawing { width: 100%; height: 100%; color: var(--paper); overflow: visible; }
.drawing-guides { fill: none; stroke: rgba(242, 239, 231, 0.16); stroke-width: 0.75; stroke-dasharray: 3 7; }
.drawing-guides path { stroke-dasharray: none; }
.route-line { fill: none; stroke: var(--signal); stroke-width: 1.1; stroke-dasharray: 5 8; opacity: 0.8; }
.route-node { fill: var(--signal); opacity: 0.9; }
.plane-outline { fill: rgba(11, 20, 24, 0.35); stroke: rgba(242, 239, 231, 0.92); stroke-width: 1.05; stroke-dasharray: 1; stroke-dashoffset: 1; animation: draw-plane 2.4s 0.5s var(--ease) forwards; }
.plane-detail { fill: none; stroke: rgba(242, 239, 231, 0.5); stroke-width: 0.8; }
.drawing-labels { fill: rgba(242, 239, 231, 0.56); font-family: var(--mono); font-size: 7.5px; letter-spacing: 0.16em; }
.panel-data { position: relative; z-index: 2; margin-top: auto; padding-top: 12px; border-top: 1px solid var(--line-light); background: linear-gradient(to bottom, transparent, rgba(11, 20, 24, 0.7)); }
.panel-data-row { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; padding: 7px 0; }
.panel-data-row span { font-family: var(--mono); font-size: 8px; letter-spacing: 0.14em; text-transform: uppercase; color: rgba(242, 239, 231, 0.56); }
.panel-data-row p { font-size: 11px; line-height: 1.35; letter-spacing: 0.02em; color: rgba(242, 239, 231, 0.9); text-align: right; }

/* Ticker */
.ticker { position: relative; overflow: hidden; border-top: 1px solid rgba(242, 239, 231, 0.1); border-bottom: 1px solid rgba(242, 239, 231, 0.1); background: var(--ink); color: var(--paper); }
.ticker-track { display: flex; width: max-content; animation: marquee 46s linear infinite; }
.ticker:hover .ticker-track { animation-play-state: paused; }
.ticker-group { display: flex; align-items: center; flex: 0 0 auto; padding: 13px 0; }
.ticker-group span { position: relative; padding: 0 28px; font-family: var(--mono); font-size: 9px; letter-spacing: 0.15em; text-transform: uppercase; white-space: nowrap; }
.ticker-group span::after { content: "✳"; position: absolute; top: 50%; right: -3px; transform: translateY(-52%); color: var(--signal); font-size: 9px; }

/* Intro */
.intro-content .display { max-width: 1050px; }
.intro-bottom { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: clamp(36px, 5vw, 76px); margin-top: clamp(48px, 5vw, 72px); }
.intro-bottom .lede { max-width: 460px; color: var(--ink); }
.principles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.principle { padding-top: 14px; border-top: 1px solid var(--line); }
.principle-num { display: block; margin-bottom: 22px; font-family: var(--mono); font-size: 9px; letter-spacing: 0.1em; color: var(--signal-text); }
.principle h3 { margin-bottom: 8px; font-size: 12px; font-weight: 600; letter-spacing: 0.09em; text-transform: uppercase; }
.principle p { font-size: 13px; line-height: 1.6; color: var(--muted); }

/* Services */
.services { border-top: 1px solid var(--line); background: var(--paper-deep); }
.services-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: clamp(36px, 6vw, 96px); }
.service-card { padding: 30px 0 36px; border-top: 1px solid var(--line); }
.service-top { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 24px; }
.service-num { font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em; color: var(--signal-text); }
.service-tag { padding: 5px 9px; border: 1px solid var(--line); font-family: var(--mono); font-size: 8px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.service-card h3 { max-width: 460px; margin-bottom: 14px; font-size: clamp(20px, 1.75vw, 25px); font-weight: 500; line-height: 1.18; letter-spacing: -0.025em; }
.service-card > p { max-width: 510px; font-size: 14px; line-height: 1.62; color: var(--muted); }
.service-list { display: flex; flex-wrap: wrap; gap: 6px 18px; margin-top: 24px; }
.service-list li { font-size: 11px; line-height: 1.5; color: var(--muted); }
.service-list li::before { content: "+"; margin-right: 6px; color: var(--signal-text); }

/* Approach */
.approach { position: relative; overflow: hidden; overflow: clip; background: var(--ink); color: var(--paper); }
.approach::before { content: ""; position: absolute; top: -20%; right: -8%; width: 55vw; height: 55vw; max-width: 800px; max-height: 800px; border-radius: 50%; background: radial-gradient(circle, rgba(227, 90, 43, 0.09), transparent 68%); pointer-events: none; }
.approach-grid { position: relative; display: grid; grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr); gap: clamp(48px, 7vw, 110px); }
.approach-copy { position: sticky; top: calc(var(--header-h) + 40px); align-self: start; }
.approach-copy .display { margin: 20px 0 28px; max-width: 600px; }
.approach-lead { max-width: 440px; font-size: 16px; line-height: 1.65; color: rgba(242, 239, 231, 0.82); }
.approach-note { max-width: 420px; margin: 20px 0 34px; font-size: 14px; line-height: 1.7; color: var(--muted-light); }
.steps { border-top: 1px solid var(--line-light); }
.step { display: grid; grid-template-columns: 46px minmax(0, 1fr); gap: 18px; padding: 28px 0 30px; border-bottom: 1px solid var(--line-light); }
.step-num { padding-top: 3px; font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em; color: var(--signal); }
.step h3 { margin-bottom: 7px; font-size: 18px; font-weight: 500; letter-spacing: -0.015em; }
.step p { max-width: 530px; font-size: 13.5px; line-height: 1.68; color: var(--muted-light); }
.snapshot { position: relative; margin-top: clamp(38px, 5vw, 60px); padding: 24px 26px 26px; background: var(--paper); color: var(--ink); }
.snapshot::after { content: ""; position: absolute; top: 0; right: 0; width: 42px; height: 42px; background: linear-gradient(225deg, var(--ink) 50%, transparent 50%); opacity: 0.16; }
.snapshot-head { display: flex; justify-content: space-between; gap: 16px; padding-bottom: 14px; border-bottom: 1px solid var(--line); font-family: var(--mono); font-size: 8.5px; letter-spacing: 0.13em; text-transform: uppercase; }
.snapshot-head span:first-child { color: var(--ink); }
.snapshot-head span:last-child { color: var(--muted); }
.snapshot-row { display: flex; align-items: baseline; justify-content: space-between; gap: 28px; padding: 11px 0; border-bottom: 1px solid var(--line); }
.snapshot-row span { flex: 0 0 auto; font-family: var(--mono); font-size: 8px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.snapshot-row strong { max-width: 66%; font-size: 11.5px; font-weight: 500; line-height: 1.45; text-align: right; }
.snapshot-foot { margin-top: 18px; font-family: var(--serif); font-size: 20px; font-style: italic; line-height: 1.2; }

/* About */
.about { border-top: 1px solid var(--line); }
.about-grid { display: grid; grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr); gap: clamp(48px, 8vw, 130px); align-items: start; }
.about-title .display { margin: 20px 0 42px; }
.about blockquote { max-width: 430px; padding-left: 20px; border-left: 2px solid var(--signal); font-family: var(--serif); font-size: clamp(23px, 2.25vw, 32px); line-height: 1.2; letter-spacing: -0.015em; }
.about-body { padding-top: 10px; }
.about-body .lede { margin-bottom: 24px; }
.about-body > p:not(.lede) { max-width: 560px; margin-bottom: 18px; font-size: 14.5px; line-height: 1.72; color: var(--muted); }
.focus { display: flex; gap: 22px; align-items: flex-start; margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--line); }
.focus-label { flex: 0 0 auto; padding-top: 4px; font-family: var(--mono); font-size: 8px; letter-spacing: 0.13em; text-transform: uppercase; color: var(--muted); }
.focus ul { display: flex; flex-wrap: wrap; gap: 6px; }
.focus li { padding: 5px 9px; border: 1px solid var(--line); font-size: 10.5px; line-height: 1.3; color: var(--ink); }
.signature { display: flex; align-items: center; gap: 13px; margin-top: 48px; padding-top: 22px; border-top: 1px solid var(--line); }
.signature-mark { width: 28px; height: 28px; flex: 0 0 auto; border: 1px solid var(--line); background: linear-gradient(135deg, transparent 46%, var(--signal) 46%, var(--signal) 54%, transparent 54%); }
.signature div { display: flex; flex-direction: column; gap: 2px; }
.signature strong { font-size: 12px; font-weight: 600; letter-spacing: 0.11em; text-transform: uppercase; }
.signature span { font-family: var(--mono); font-size: 8px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }

/* FAQ */
.faq { border-top: 1px solid var(--line); background: var(--paper); }
.faq-grid { display: grid; grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr); gap: clamp(48px, 8vw, 130px); align-items: start; }
.faq-intro .display { margin: 20px 0 22px; max-width: 460px; }
.faq-intro > p { max-width: 360px; margin-bottom: 28px; font-size: 14px; line-height: 1.7; color: var(--muted); }
.faq-list { border-top: 1px solid var(--line-strong); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 28px; padding: 22px 0; cursor: pointer; list-style: none; font-size: 16px; font-weight: 500; line-height: 1.4; letter-spacing: -0.01em; transition: color 0.2s var(--ease); }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary:hover { color: var(--signal-text); }
.faq-icon { position: relative; width: 13px; height: 13px; flex: 0 0 auto; }
.faq-icon::before, .faq-icon::after { content: ""; position: absolute; top: 50%; left: 50%; width: 13px; height: 1px; background: currentColor; transform: translate(-50%, -50%); transition: transform 0.25s var(--ease); }
.faq-icon::after { transform: translate(-50%, -50%) rotate(90deg); }
details[open] .faq-icon::after { transform: translate(-50%, -50%) rotate(0deg); }
.faq-answer { max-width: 620px; padding: 0 40px 24px 0; }
.faq-answer p { font-size: 14px; line-height: 1.72; color: var(--muted); }

/* Contact */
.contact { position: relative; overflow: hidden; background: var(--ink); color: var(--paper); }
.contact::before { content: ""; position: absolute; right: -10%; bottom: -32%; width: 60vw; height: 60vw; max-width: 900px; max-height: 900px; border-radius: 50%; background: radial-gradient(circle, rgba(227, 90, 43, 0.11), transparent 66%); pointer-events: none; }
.contact-grid { position: relative; display: grid; grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr); gap: clamp(48px, 7vw, 110px); align-items: start; }
.contact-copy .display { max-width: 620px; margin: 20px 0 26px; }
.contact-copy .display em { color: var(--signal); }
.contact-lead { max-width: 480px; font-size: 15px; line-height: 1.7; color: rgba(242, 239, 231, 0.74); }
.contact-email { margin-top: 42px; padding-top: 20px; border-top: 1px solid var(--line-light); }
.contact-email-label { display: block; margin-bottom: 10px; font-family: var(--mono); font-size: 8px; letter-spacing: 0.15em; text-transform: uppercase; color: var(--muted-light); }
.contact-email-row { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }
.contact-email-row a { font-size: clamp(19px, 2vw, 27px); line-height: 1.2; letter-spacing: -0.025em; border-bottom: 1px solid transparent; transition: color 0.2s var(--ease), border-color 0.2s var(--ease); }
.contact-email-row a:hover { color: var(--signal); border-bottom-color: var(--signal); }
.copy-btn { padding: 6px 10px; border: 1px solid var(--line-light); background: transparent; color: var(--muted-light); font-family: var(--mono); font-size: 8px; letter-spacing: 0.12em; text-transform: uppercase; transition: color 0.2s var(--ease), border-color 0.2s var(--ease); }
.copy-btn:hover { color: var(--paper); border-color: var(--paper); }
.contact-notes { display: grid; gap: 8px; margin-top: 32px; }
.contact-notes li { position: relative; padding-left: 16px; font-size: 11.5px; line-height: 1.5; color: var(--muted-light); }
.contact-notes li::before { content: "+"; position: absolute; left: 0; color: var(--signal); }

.contact-form { padding: clamp(24px, 3vw, 38px); background: var(--paper); color: var(--ink); }
.form-head { display: flex; justify-content: space-between; gap: 20px; padding-bottom: 15px; margin-bottom: 24px; border-bottom: 1px solid var(--line); font-family: var(--mono); font-size: 8.5px; letter-spacing: 0.13em; text-transform: uppercase; }
.form-status-label { color: var(--signal-text); }
.field-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.field { margin-bottom: 18px; }
.field label { display: block; margin-bottom: 7px; font-family: var(--mono); font-size: 8.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.field .optional { color: var(--muted); letter-spacing: 0; text-transform: none; }
.field input, .field select, .field textarea { width: 100%; border: 0; border-bottom: 1px solid var(--line); border-radius: 0; background: transparent; padding: 9px 0; font-size: 14px; line-height: 1.4; outline: 0; transition: border-color 0.2s var(--ease); }
.field textarea { min-height: 110px; resize: none; }
.field select { appearance: none; -webkit-appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%2369736f' stroke-width='1.2'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 2px center; padding-right: 24px; }
.field input::placeholder, .field textarea::placeholder { color: #5f6965; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--signal); }
.field input:user-invalid, .field textarea:user-invalid { border-color: var(--signal-dark); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.btn-form { width: 100%; margin-top: 4px; }
.form-note { margin-top: 14px; font-size: 10.5px; line-height: 1.55; color: var(--muted); }
.form-status { display: none; margin-top: 14px; padding: 11px 13px; border-left: 2px solid var(--signal); background: rgba(227, 90, 43, 0.07); font-size: 11.5px; line-height: 1.55; color: var(--ink); }
.form-status.is-visible { display: block; }

/* Footer */
.site-footer { padding: 46px 0 24px; border-top: 1px solid var(--line-light); background: var(--ink); color: var(--paper); }
.footer-top { display: grid; grid-template-columns: 1.2fr 0.8fr auto; gap: 40px; align-items: start; padding-bottom: 40px; border-bottom: 1px solid var(--line-light); }
.footer-brand .brand { color: var(--paper); margin-bottom: 16px; }
.footer-brand .brand-text span { color: var(--muted-light); }
.footer-brand .brand-mark circle { fill: var(--ink); }
.footer-brand p { max-width: 310px; font-size: 11.5px; line-height: 1.65; color: var(--muted-light); }
.footer-nav { display: flex; flex-wrap: wrap; gap: 10px 24px; }
.footer-nav a { font-size: 11px; color: var(--muted-light); transition: color 0.2s var(--ease); }
.footer-nav a:hover { color: var(--paper); }
.footer-email { justify-self: start; font-size: 12px; border-bottom: 1px solid var(--line-light); padding-bottom: 4px; transition: color 0.2s var(--ease), border-color 0.2s var(--ease); }
.footer-email:hover { color: var(--signal); border-color: var(--signal); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-top: 22px; font-family: var(--mono); font-size: 8px; letter-spacing: 0.12em; text-transform: uppercase; color: rgba(242, 239, 231, 0.58); }
.footer-bottom a { transition: color 0.2s var(--ease); }
.footer-bottom a:hover { color: var(--paper); }
.footer-motto { color: rgba(242, 239, 231, 0.72); }

/* Motion */
.reveal-ready [data-reveal] { opacity: 0; transform: translateY(26px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); transition-delay: var(--reveal-delay, 0ms); }
.reveal-ready [data-reveal].is-visible { opacity: 1; transform: none; }
[data-hero] { animation: hero-rise 0.95s var(--ease) both; }
.hero-copy .eyebrow { animation-delay: 0.05s; }
.hero-copy h1 { animation-delay: 0.12s; }
.hero-copy .hero-lead { animation-delay: 0.2s; }
.hero-copy .hero-actions { animation-delay: 0.28s; }
.hero-copy .hero-proof { animation-delay: 0.36s; }
.hero-visual { animation-delay: 0.18s; }
@keyframes hero-rise { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: none; } }
@keyframes draw-plane { to { stroke-dashoffset: 0; } }
@keyframes marquee { to { transform: translateX(-50%); } }

/* Responsive */
@media (max-width: 1180px) {
  .hero-grid { grid-template-columns: minmax(0, 1.08fr) minmax(370px, 0.78fr); }
  .hero h1 { font-size: clamp(62px, 8.4vw, 104px); }
  .hero-visual { min-height: 610px; }
  .btn-header { display: none; }
  .section-head-copy { grid-template-columns: 1fr; gap: 24px; }
  .section-intro { max-width: 520px; }
}

@media (max-width: 1020px) {
  body.menu-open .site-header {
    background: transparent;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    border-bottom-color: transparent;
  }
  .nav {
    position: fixed; inset: 0; z-index: 105; height: 100dvh; display: flex; flex-direction: column;
    align-items: flex-start; justify-content: center; gap: 4px; margin: 0;
    padding: 110px var(--gutter) 40px; background: var(--paper);
    opacity: 0; visibility: hidden; transform: translateY(-12px);
    transition: opacity 0.32s var(--ease), visibility 0.32s var(--ease), transform 0.32s var(--ease);
  }
  .nav.is-open { opacity: 1; visibility: visible; transform: none; }
  .nav a { padding: 8px 0; font-family: var(--serif); font-size: clamp(38px, 7vw, 58px); font-weight: 400; line-height: 1.05; letter-spacing: -0.02em; color: var(--ink); }
  .nav a::after { display: none; }
  .nav a:hover, .nav a.is-active { color: var(--signal-text); }
  .nav .nav-mobile-cta { display: inline-flex; align-items: center; gap: 12px; margin-top: 34px; padding: 14px 20px; border: 1px solid var(--ink); font-family: var(--sans); font-size: 10px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; }
  .nav .nav-mobile-cta:hover { border-color: var(--signal); }
  .menu-toggle { display: block; }
  .hero { min-height: 0; padding-top: calc(var(--header-h) + 44px); padding-bottom: 0; }
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-copy { padding-bottom: 0; }
  .hero h1 { font-size: clamp(62px, 12vw, 110px); }
  .hero-visual { min-height: 620px; }
  .section-grid, .section-head { grid-template-columns: 1fr; gap: 30px; }
  .section-head { margin-bottom: 46px; }
  .section-head-copy { grid-template-columns: 1fr; }
  .intro-bottom { grid-template-columns: 1fr; }
  .approach-grid, .about-grid, .faq-grid, .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .approach-copy { position: static; }
  .about blockquote { max-width: 640px; }
  .about-body { max-width: 700px; }
  .contact-copy .display { max-width: 760px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-email { justify-self: start; }
}

@media (max-width: 720px) {
  :root { --header-h: 72px; }
  body { font-size: 15px; }
  .hero { padding-top: calc(var(--header-h) + 28px); }
  .hero h1 { margin-top: 18px; font-size: clamp(56px, 15.5vw, 90px); line-height: 0.87; }
  .hero-lead { font-size: 15.5px; }
  .hero-actions { gap: 20px; margin-top: 28px; }
  .hero-proof { grid-template-columns: 1fr; gap: 0; margin-top: 38px; padding-top: 0; border-top: 0; }
  .hero-proof li { padding: 9px 0; border-top: 1px solid var(--line); }
  .hero-proof li + li::before { display: none; }
  .hero-visual { min-height: 500px; padding: 18px; }
  .hero-visual::after { inset: 8px; }
  .panel-drawing { inset: 56px 0 108px; }
  .panel-data-row p { font-size: 10px; }
  .ticker-group span { padding: 0 20px; font-size: 8px; }
  .section { padding: 76px 0; }
  .display { font-size: clamp(38px, 9.8vw, 58px); }
  .intro-bottom { margin-top: 38px; }
  .principles { grid-template-columns: 1fr; gap: 20px; }
  .principle { display: grid; grid-template-columns: 34px 1fr; column-gap: 10px; }
  .principle-num { grid-row: 1 / 3; margin: 0; padding-top: 2px; }
  .principle h3 { margin-bottom: 4px; }
  .services-grid { grid-template-columns: 1fr; }
  .service-card { padding: 26px 0 30px; }
  .service-card h3 { font-size: 21px; }
  .step { grid-template-columns: 34px 1fr; gap: 12px; padding: 24px 0; }
  .step h3 { font-size: 16px; }
  .snapshot { padding: 20px; }
  .snapshot-row { gap: 14px; }
  .snapshot-row span { flex: 0 0 74px; }
  .snapshot-row strong { max-width: none; font-size: 11px; }
  .about-title .display { margin-bottom: 30px; }
  .about-grid, .faq-grid, .contact-grid { gap: 38px; }
  .focus { display: block; }
  .focus-label { display: block; margin-bottom: 10px; }
  .faq-list summary { padding: 19px 0; font-size: 15px; }
  .contact-form { padding: 22px 18px; }
  .field-row { grid-template-columns: 1fr; gap: 0; }
  .contact-email-row a { font-size: 18px; }
  .footer-top { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-wrap: wrap; gap: 10px 22px; }
  .footer-motto { order: 3; width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  .plane-outline { stroke-dashoffset: 0; }
  .reveal-ready [data-reveal] { opacity: 1; transform: none; }
}


/* ==========================================================================
   v3 editorial-light overrides
   White canvas, Inter throughout, photography, same editorial grid
   ========================================================================== */

body {
  background: #ffffff;
}

.hero {
  background: #ffffff;
}

.display {
  font-family: var(--sans);
  font-size: clamp(38px, 4.4vw, 64px);
  font-weight: 500;
  line-height: 1.03;
  letter-spacing: -0.045em;
}

.display em {
  font-style: normal;
  color: var(--signal);
}

.hero h1 {
  font-family: var(--sans);
  font-size: clamp(54px, 6.9vw, 96px);
  font-weight: 500;
  line-height: 0.96;
  letter-spacing: -0.06em;
}

.hero h1 em {
  font-style: normal;
  color: var(--signal);
}

.hero h1 .accent {
  color: var(--signal);
}

.hero-proof {
  grid-template-columns: repeat(4, auto);
}

.hero-proof li {
  font-family: var(--sans);
  font-size: 9.5px;
  font-weight: 600;
  letter-spacing: 0.09em;
}

.panel-photo {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.panel-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 52%;
}

.panel-shade {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(180deg, rgba(11, 20, 24, 0.42) 0%, rgba(11, 20, 24, 0.12) 36%, rgba(11, 20, 24, 0.92) 100%),
    linear-gradient(90deg, rgba(11, 20, 24, 0.2), transparent 55%);
}

.hero-visual::before {
  z-index: 1;
  pointer-events: none;
}

.hero-visual::after {
  z-index: 2;
}

.panel-top,
.panel-data {
  position: relative;
  z-index: 3;
}

.panel-data {
  background: linear-gradient(to bottom, transparent, rgba(11, 20, 24, 0.72));
}

.panel-label,
.panel-status,
.panel-data-row span {
  font-family: var(--sans);
  font-weight: 500;
}

.panel-data-row p {
  font-family: var(--sans);
  font-weight: 500;
}

.ticker-group span,
.section-label,
.principle-num,
.service-num,
.service-tag,
.snapshot-head,
.snapshot-row span,
.focus-label,
.signature span,
.form-head,
.field label,
.contact-email-label,
.copy-btn,
.footer-bottom,
.footer-email,
.footer-nav a,
.contact-notes li {
  font-family: var(--sans);
}

.section-label {
  font-weight: 600;
  letter-spacing: 0.14em;
}

.principle h3,
.service-card h3,
.step h3,
.snapshot-row strong {
  letter-spacing: -0.02em;
}

.services {
  background: #f7f6f3;
}

.faq {
  background: #fbfbf9;
}

.about {
  background: #ffffff;
}

.about blockquote {
  font-family: var(--sans);
  font-size: clamp(22px, 2.05vw, 30px);
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.035em;
}

.about-body .lede {
  font-size: clamp(19px, 1.65vw, 22px);
  line-height: 1.5;
  letter-spacing: -0.025em;
}

.about-cutout {
  max-width: 440px;
  margin-top: 30px;
}

.about-cutout img {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 18px 26px rgba(11, 20, 24, 0.1));
}

.about-cutout figcaption {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 10px;
  padding-top: 9px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 8px;
  font-weight: 500;
  letter-spacing: 0.1em;
  line-height: 1.4;
  text-transform: uppercase;
}

.about-cutout figcaption span {
  color: var(--signal-text);
}

.about-note {
  max-width: 560px;
  margin-top: 26px;
  padding-top: 13px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 10px;
  line-height: 1.55;
}

.image-band {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 420px;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
}

.image-band > img {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 50%;
  filter: saturate(0.9) brightness(0.86);
}

.image-band-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(90deg, rgba(11, 20, 24, 0.92) 0%, rgba(11, 20, 24, 0.62) 48%, rgba(11, 20, 24, 0.12) 100%),
    linear-gradient(0deg, rgba(11, 20, 24, 0.45) 0%, transparent 60%);
}

.image-band-content {
  position: relative;
  z-index: 2;
  padding: 70px 0;
}

.image-band-quote {
  max-width: 900px;
  margin-top: 21px;
  font-family: var(--sans);
  font-size: clamp(34px, 4.4vw, 58px);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.055em;
}

.contact-copy .display em {
  color: var(--signal);
}

.hero-visual {
  min-height: 660px;
}

@media (max-width: 1180px) {
  .hero h1 { font-size: clamp(54px, 7.8vw, 88px); }
  .hero-proof { grid-template-columns: repeat(2, auto); row-gap: 13px; }
  .hero-proof li:nth-child(3) { padding-left: 0; }
  .hero-proof li:nth-child(3)::before { display: none; }
}

@media (max-width: 1020px) {
  .hero h1 { font-size: clamp(52px, 10vw, 86px); }
  .hero-proof { display: none; }
  .hero-visual { min-height: 620px; }
  .about-cutout { max-width: 560px; }
}

@media (max-width: 720px) {
  .display { font-size: clamp(34px, 9vw, 46px); }
  .hero h1 { font-size: clamp(43px, 12vw, 66px); line-height: 0.98; }
  .hero-proof { grid-template-columns: 1fr; row-gap: 0; }
  .hero-proof li:nth-child(3) { padding-left: 0; }
  .hero-proof li:nth-child(3)::before { display: none; }
  .hero-visual { min-height: 500px; padding: 18px; }
  .panel-data-row p { font-size: 10px; }
  .about-cutout { max-width: none; }
  .image-band { min-height: 340px; }
  .image-band-content { padding: 55px 0; }
  .image-band-overlay {
    background:
      linear-gradient(90deg, rgba(11, 20, 24, 0.9) 0%, rgba(11, 20, 24, 0.5) 100%),
      linear-gradient(0deg, rgba(11, 20, 24, 0.55) 0%, transparent 80%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .about-cutout img,
  .panel-photo img,
  .image-band > img { transition: none; }
}


/* AOG emphasis and WhatsApp */
.service-card--aog {
  padding-left: 25px;
  padding-right: 25px;
  background: var(--ink);
  color: var(--paper);
  box-shadow: inset 0 2px 0 var(--signal);
}

.service-card--aog:hover {
  background: var(--ink);
}

.service-card--aog h3 {
  color: var(--paper);
}

.service-card--aog > p {
  color: rgba(242, 239, 231, 0.62);
}

.service-card--aog .service-tag {
  border-color: rgba(242, 239, 231, 0.22);
  color: rgba(242, 239, 231, 0.58);
}

.service-card--aog .service-list {
  border-top-color: rgba(242, 239, 231, 0.16);
}

.service-card--aog .service-list li {
  color: rgba(242, 239, 231, 0.64);
}

.service-card--aog .service-list li::before {
  background: var(--signal);
}

.contact-whatsapp {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--line-light);
}

.contact-whatsapp a {
  display: inline-block;
  color: var(--paper);
  font-size: clamp(19px, 2vw, 27px);
  line-height: 1.2;
  letter-spacing: -0.025em;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.contact-whatsapp a:hover {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

@media (max-width: 720px) {
  .service-card--aog {
    padding-left: 21px;
    padding-right: 21px;
  }

  .contact-whatsapp a {
    font-size: 18px;
  }
}

/* ==========================================================================
   V4 service-first multipage
   ========================================================================== */

/* Home service index */
.service-index {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 660px;
  padding: 24px;
  overflow: hidden;
  background:
    radial-gradient(circle at 88% 0%, rgba(217, 90, 43, 0.14), transparent 32%),
    var(--ink);
  color: var(--paper);
  border-top: 3px solid var(--signal);
}

.service-index::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, #000, transparent 86%);
  -webkit-mask-image: linear-gradient(to bottom, #000, transparent 86%);
}

.service-index-top,
.service-index-list,
.service-index-foot {
  position: relative;
  z-index: 1;
}

.service-index-top {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  color: rgba(255, 255, 255, 0.48);
  font-size: 8.5px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.service-index-list {
  margin-top: 8px;
}

.service-index-row {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) 16px;
  gap: 13px;
  align-items: start;
  padding: 18px 9px;
  margin: 0 -9px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.13);
  transition: background-color 0.2s var(--ease);
}

.service-index-row:hover {
  background: rgba(255, 255, 255, 0.055);
}

.service-index-row.is-aog {
  padding-left: 16px;
  border-left: 2px solid var(--signal);
  background: rgba(217, 90, 43, 0.08);
}

.service-index-row.is-aog:hover {
  background: rgba(217, 90, 43, 0.14);
}

.index-num {
  padding-top: 2px;
  color: var(--signal);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.1em;
}

.index-copy strong {
  display: block;
  color: var(--paper);
  font-size: 15.5px;
  font-weight: 500;
  line-height: 1.22;
  letter-spacing: -0.025em;
}

.index-copy small {
  display: block;
  margin-top: 5px;
  color: rgba(255, 255, 255, 0.46);
  font-size: 9px;
  font-weight: 400;
  line-height: 1.45;
  letter-spacing: 0.03em;
}

.index-arrow {
  padding-top: 3px;
  color: rgba(255, 255, 255, 0.4);
  font-size: 14px;
  line-height: 1;
  transition: color 0.2s var(--ease), transform 0.2s var(--ease);
}

.service-index-row:hover .index-arrow {
  color: var(--signal);
  transform: translate(2px, -2px);
}

.service-index-quote {
  max-width: 330px;
  margin-top: clamp(28px, 4vw, 46px);
  color: rgba(255, 255, 255, 0.78);
  font-size: clamp(20px, 1.8vw, 25px);
  font-weight: 400;
  line-height: 1.22;
  letter-spacing: -0.035em;
}

.service-index-foot {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  margin-top: auto;
  padding-top: 17px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  color: rgba(255, 255, 255, 0.42);
  font-size: 8px;
  font-weight: 500;
  letter-spacing: 0.08em;
  line-height: 1.5;
  text-transform: uppercase;
}

.service-index-foot a {
  color: var(--paper);
  transition: color 0.2s var(--ease);
}

.service-index-foot a:hover {
  color: var(--signal);
}

/* Home about teaser */
.home-about {
  background: var(--paper-deep);
}

.home-about-grid {
  display: grid;
  grid-template-columns: minmax(150px, 0.27fr) minmax(0, 1fr);
  gap: clamp(28px, 6vw, 90px);
  align-items: start;
}

.home-about-copy {
  max-width: 780px;
}

.home-about-copy .display {
  max-width: 700px;
  margin-bottom: 22px;
}

.home-about-copy .lede {
  max-width: 650px;
  margin-bottom: 15px;
}

.home-about-copy p:not(.lede):not(.section-label) {
  max-width: 630px;
  margin-bottom: 22px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.7;
}

/* Inner page hero */
.page-hero {
  padding: calc(var(--header-h) + clamp(64px, 8vw, 110px)) 0 clamp(48px, 6vw, 76px);
  background: var(--white);
}

.page-hero--compact {
  padding-bottom: clamp(34px, 4vw, 48px);
}

.page-hero h1 {
  max-width: 1000px;
  margin: 20px 0 22px;
  font-family: var(--sans);
  font-size: clamp(48px, 6vw, 84px);
  font-weight: 500;
  line-height: 0.97;
  letter-spacing: -0.055em;
}

.page-hero h1 .accent {
  color: var(--signal);
}

.page-hero-lead {
  max-width: 620px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

/* Service jump nav */
.service-jump {
  position: sticky;
  top: var(--header-h);
  z-index: 20;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.94);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.service-jump-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 13px 0;
  overflow-x: auto;
  scrollbar-width: none;
}

.service-jump-inner::-webkit-scrollbar {
  display: none;
}

.service-jump a {
  flex: 0 0 auto;
  color: var(--muted);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.09em;
  line-height: 1.4;
  text-transform: uppercase;
  transition: color 0.2s var(--ease);
}

.service-jump a span {
  margin-right: 5px;
  color: var(--signal-text);
}

.service-jump a:hover {
  color: var(--ink);
}

/* Service detail sections */
.service-detail {
  scroll-margin-top: calc(var(--header-h) + 62px);
  padding: clamp(62px, 7vw, 100px) 0;
  border-bottom: 1px solid var(--line);
  background: var(--white);
}

.service-detail-grid {
  display: grid;
  grid-template-columns: minmax(250px, 0.34fr) minmax(0, 0.66fr);
  gap: clamp(38px, 7vw, 112px);
  align-items: start;
}

.service-detail-side h2 {
  max-width: 420px;
  margin-top: 20px;
  font-size: clamp(30px, 3.2vw, 46px);
  font-weight: 500;
  line-height: 1.04;
  letter-spacing: -0.045em;
}

.service-detail-body {
  max-width: 700px;
}

.service-detail-body .lede {
  max-width: 650px;
  margin-bottom: 18px;
}

.service-detail-body > p:not(.lede):not(.service-detail-note) {
  max-width: 650px;
  margin-bottom: 16px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.72;
}

.detail-block {
  margin-top: 28px;
  padding-top: 15px;
  border-top: 1px solid var(--line-strong);
}

.service-detail-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 24px;
  margin-top: 12px;
}

.service-detail-list li {
  position: relative;
  padding: 9px 0 9px 14px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 11.5px;
  line-height: 1.45;
}

.service-detail-list li::before {
  content: "";
  position: absolute;
  top: 1.1em;
  left: 0;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--signal);
}

.service-detail-note {
  max-width: 620px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 10.5px;
  line-height: 1.6;
}

.service-detail-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  margin-top: 26px;
}

.service-detail--dark {
  border-bottom-color: rgba(255, 255, 255, 0.14);
  background: var(--ink);
  color: var(--paper);
}

.service-detail--dark .service-detail-side .section-label {
  color: var(--muted-light);
}

.service-detail--dark .service-detail-side h2 {
  color: var(--paper);
}

.service-detail--dark .service-detail-body .lede {
  color: var(--paper);
}

.service-detail--dark .service-detail-body > p:not(.lede):not(.service-detail-note) {
  color: rgba(242, 239, 231, 0.64);
}

.service-detail--dark .detail-block {
  border-top-color: rgba(255, 255, 255, 0.18);
}

.service-detail--dark .service-detail-list li {
  border-bottom-color: rgba(255, 255, 255, 0.14);
  color: rgba(242, 239, 231, 0.62);
}

.service-detail--dark .service-detail-note {
  color: rgba(242, 239, 231, 0.5);
}

.service-detail--dark .copy-btn {
  border-color: rgba(255, 255, 255, 0.25);
  color: rgba(255, 255, 255, 0.7);
}

.service-detail--dark .copy-btn:hover {
  border-color: var(--paper);
  color: var(--paper);
}

/* About page */
.about-page {
  padding-top: clamp(24px, 4vw, 48px);
}

.about-page-grid {
  display: grid;
  grid-template-columns: minmax(300px, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(38px, 7vw, 112px);
  align-items: start;
}

.about-photo {
  margin: 0;
  border-top: 2px solid var(--signal);
}

.about-photo img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.about-photo figcaption {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-top: 9px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 8px;
  font-weight: 500;
  letter-spacing: 0.1em;
  line-height: 1.4;
  text-transform: uppercase;
}

.about-photo figcaption span {
  color: var(--signal-text);
}

.about-copy {
  max-width: 680px;
}

.about-copy .lede {
  margin-bottom: 20px;
}

.about-copy > p:not(.lede):not(.about-note) {
  max-width: 650px;
  margin-bottom: 15px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.72;
}

.about-quote {
  max-width: 620px;
  margin: 28px 0;
  padding-left: 20px;
  border-left: 2px solid var(--signal);
  font-size: clamp(21px, 2vw, 27px);
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: -0.035em;
}

.credential-block {
  margin-top: 27px;
  padding-top: 14px;
  border-top: 1px solid var(--line-strong);
}

.credential-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}

.credential-list li {
  padding: 5px 9px;
  border: 1px solid var(--line);
  color: var(--ink);
  font-size: 10.5px;
  line-height: 1.3;
}

.about-note {
  max-width: 620px;
  margin-top: 25px;
  padding-top: 13px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 10px;
  line-height: 1.6;
}

/* Contact page */
.contact-page {
  padding-top: clamp(24px, 4vw, 48px);
}

.contact-page-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(38px, 7vw, 112px);
  align-items: start;
}

.contact-channel {
  padding: 0 0 17px;
  margin-bottom: 17px;
  border-bottom: 1px solid var(--line);
}

.contact-channel-label {
  display: block;
  margin-bottom: 7px;
  color: var(--muted);
  font-size: 8px;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.contact-channel-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 13px;
}

.contact-channel-row a,
.contact-channel-value {
  color: var(--ink);
  font-size: clamp(20px, 2.1vw, 28px);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.contact-channel-row a {
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.contact-channel-row a:hover {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

.contact-page .copy-btn {
  padding: 5px 9px;
  border-color: var(--line);
  color: var(--muted);
}

.contact-page .copy-btn:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.contact-channel--plain p {
  margin: 0;
  color: var(--ink);
  font-size: 13px;
  line-height: 1.6;
}

.aog-note {
  margin-top: 24px;
  padding: 13px 15px;
  border-left: 2px solid var(--signal);
  background: rgba(217, 90, 43, 0.06);
  color: var(--ink);
  font-size: 11.5px;
  line-height: 1.55;
}

.contact-page .contact-form {
  border: 1px solid var(--line);
  background: var(--white);
}

.contact-page .contact-form .form-head {
  border-bottom-color: var(--line);
}

/* Responsive additions */
@media (max-width: 1120px) {
  .service-detail-grid {
    grid-template-columns: minmax(220px, 0.38fr) minmax(0, 0.62fr);
    gap: 48px;
  }

  .about-page-grid,
  .contact-page-grid {
    gap: 48px;
  }
}

@media (max-width: 960px) {
  .service-index {
    min-height: 560px;
  }

  .home-about-grid {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .service-detail-grid {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .service-detail-side h2 {
    margin-top: 14px;
  }

  .about-page-grid,
  .contact-page-grid {
    grid-template-columns: 1fr;
  }

  .about-photo {
    max-width: 560px;
  }
}

@media (max-width: 720px) {
  .service-index {
    min-height: 0;
    padding: 19px;
  }

  .service-index-row {
    grid-template-columns: 26px minmax(0, 1fr) 14px;
    padding: 15px 7px;
    margin: 0 -7px;
  }

  .service-index-row.is-aog {
    padding-left: 13px;
  }

  .index-copy strong {
    font-size: 14.5px;
  }

  .service-index-foot {
    font-size: 7.5px;
  }

  .home-about-copy .display {
    font-size: clamp(34px, 9vw, 46px);
  }

  .page-hero {
    padding-top: calc(var(--header-h) + 58px);
  }

  .page-hero h1 {
    font-size: clamp(44px, 12vw, 64px);
  }

  .page-hero-lead {
    font-size: 14px;
  }

  .service-jump {
    top: var(--header-h);
  }

  .service-jump-inner {
    flex-wrap: wrap;
    gap: 8px 18px;
    padding: 11px 0;
    overflow: visible;
  }

  .service-detail {
    padding: 58px 0;
  }

  .service-detail-side h2 {
    font-size: clamp(27px, 8vw, 36px);
  }

  .service-detail-list {
    grid-template-columns: 1fr;
  }

  .about-photo {
    max-width: none;
  }

  .about-copy .lede {
    font-size: 18px;
  }

  .contact-channel-row a,
  .contact-channel-value {
    font-size: 21px;
  }

  .contact-page .contact-form {
    padding: 22px 18px;
  }
}

/* Language switch and Chinese typography */
.lang-switch {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 7px 10px;
  border: 1px solid var(--line-strong);
  color: var(--muted);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.1em;
  line-height: 1;
  text-transform: uppercase;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.lang-switch:hover {
  border-color: var(--ink);
  color: var(--ink);
}

html[lang="zh-CN"] {
  --sans: "Inter", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --serif: "Songti SC", "Noto Serif CJK SC", Georgia, serif;
}

html[lang="zh-CN"] body {
  font-family: var(--sans);
}

html[lang="zh-CN"] .hero h1,
html[lang="zh-CN"] .page-hero h1 {
  line-height: 1.08;
  letter-spacing: -0.045em;
}

html[lang="zh-CN"] .display {
  line-height: 1.15;
  letter-spacing: -0.04em;
}

html[lang="zh-CN"] .service-detail-side h2 {
  line-height: 1.14;
  letter-spacing: -0.04em;
}

html[lang="zh-CN"] .about-quote {
  line-height: 1.5;
  letter-spacing: -0.03em;
}

@media (max-width: 1020px) {
  .nav a {
    font-family: var(--sans);
    font-weight: 500;
  }
}

@media (max-width: 720px) {
  .lang-switch {
    min-height: 32px;
    padding: 6px 8px;
    font-size: 8px;
  }
}

/* Home hero personal intro */
.hero-intro {
  max-width: 590px;
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.65;
}

.hero-credentials {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 30px;
  color: var(--ink);
  font-size: 10px;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.hero-credentials span {
  white-space: nowrap;
}

.hero-credentials span + span::before {
  content: "·";
  display: inline-block;
  margin: 0 10px 0 5px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 400;
  line-height: 1;
  vertical-align: -1px;
}

@media (max-width: 720px) {
  .hero-intro {
    font-size: 14px;
  }

  .hero-credentials {
    display: grid;
    grid-template-columns: max-content minmax(0, 1fr);
    gap: 8px 14px;
    margin-bottom: 26px;
    font-size: 8.5px;
    letter-spacing: 0.045em;
  }

  .hero-credentials span + span::before {
    content: none;
  }

  .hero-credentials span:nth-child(even) {
    padding-left: 14px;
    border-left: 1px solid var(--line-strong);
  }
}