/* Vertex Group — shared styles.
   Palette: night navy ink, cool paper, Vertex cobalt (echoes blueprint blue), survey orange (construction marking paint) used sparingly. */
:root {
  --paper: #F5F7F8;
  --card: #FFFFFF;
  --ink: #0F1B2D;
  --slate: #556474;
  --mist: #DFE6EC;
  --cobalt: #2F5BEA;
  --cobalt-wash: rgba(47, 91, 234, .09);
  --signal: #E8611C;
  --signal-wash: rgba(232, 97, 28, .10);
  /* Avatar: change these three to look more like you */
  --av-skin: #B57B57;
  --av-hair: #121011;
  --av-beard: #1A1517;
  --av-sweater: #3E6B4C;
  /* Blueprint sheet (one visual world in both themes) */
  --bp-ground: #13407A;
  --bp-line: #EAF2FF;
  --bp-dim: rgba(234, 242, 255, .62);
  --bp-faint: rgba(234, 242, 255, .085);
  --bp-red: #FF8270;
  --bp-red-wash: rgba(255, 130, 112, .16);
  --f-display: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  --f-body: "Inter", "Helvetica Neue", Arial, sans-serif;
  --f-mono: "JetBrains Mono", ui-monospace, Menlo, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --paper: #0B1420;
    --card: #111D2B;
    --ink: #E7EEF5;
    --slate: #9AABBC;
    --mist: #22324A;
    --cobalt: #7E9BFF;
    --cobalt-wash: rgba(126, 155, 255, .12);
    --signal: #FF8A4C;
    --signal-wash: rgba(255, 138, 76, .13);
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--f-body);
  font-size: 16.5px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--cobalt); }
img, svg { max-width: 100%; }
:focus-visible { outline: 2px solid var(--cobalt); outline-offset: 3px; border-radius: 2px; }
.wrap { max-width: 1120px; margin: 0 auto; padding-left: max(20px, env(safe-area-inset-left, 0px)); padding-right: max(20px, env(safe-area-inset-right, 0px)); }
h1, h2, h3 { font-family: var(--f-display); font-weight: 700; line-height: 1.08; letter-spacing: -.015em; text-wrap: balance; margin: 0; }
h1 { font-size: clamp(38px, 6vw, 64px); }
h2 { font-size: clamp(28px, 3.6vw, 40px); }
h3 { font-size: 20px; letter-spacing: -.005em; }
p { margin: 0; }
.eyebrow { font-family: var(--f-mono); font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--slate); }
.lead { font-size: 19px; color: var(--slate); max-width: 58ch; }
.muted { color: var(--slate); }
.mono { font-family: var(--f-mono); }

/* Nav */
.nav { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20; background: color-mix(in srgb, var(--paper) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--mist); }
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 30; background: var(--paper); }
.nav .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 14px; }
.logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-family: var(--f-display); font-weight: 700; letter-spacing: .02em; font-size: 17px; }
.logo svg { width: 30px; height: 30px; }
.nav-links { display: flex; gap: 22px; align-items: center; font-size: 15px; }
.nav-links a { color: var(--ink); text-decoration: none; }
.nav-links a:hover { color: var(--cobalt); }
.nav-links a.btn, .nav-links a.btn:hover { color: var(--paper); }
.nav-links a.btn:hover { color: #fff; }
@media (max-width: 760px) { .nav-links a:not(.btn) { display: none; } }

.btn { display: inline-flex; align-items: center; gap: 8px; padding: 11px 18px; border-radius: 8px; font-weight: 600; font-size: 15px; text-decoration: none; border: 1.5px solid var(--ink); background: var(--ink); color: var(--paper); transition: background .15s, border-color .15s; }
.btn:hover { background: var(--cobalt); border-color: var(--cobalt); color: #fff; }
.btn.ghost { background: transparent; color: var(--ink); }
.btn.ghost:hover { border-color: var(--cobalt); color: var(--cobalt); background: transparent; }
.btn.sm { padding: 8px 14px; font-size: 14px; }

section { padding-block: 72px; }
.sec-head { display: grid; gap: 10px; margin-bottom: 32px; max-width: 70ch; }

/* Hero */
.hero { padding-block: 56px 40px; }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, .9fr); gap: 40px; align-items: center; }
@media (max-width: 860px) { .hero .wrap { grid-template-columns: 1fr; } .avatar-box { order: -1; max-width: 300px; } }
.hero-copy { display: grid; gap: 20px; }
.hero h1 em { font-style: normal; color: var(--cobalt); }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }
.avail { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; color: var(--slate); }
.avail i { width: 9px; height: 9px; border-radius: 50%; background: #22A36B; box-shadow: 0 0 0 4px rgba(34, 163, 107, .18); }

/* Avatar */
.avatar-box { justify-self: center; width: 100%; max-width: 400px; }
.avatar { width: 100%; height: auto; display: block; }
.av-bg { fill: var(--cobalt-wash); }
.av-ring { fill: none; stroke: var(--cobalt); stroke-width: 1.5; stroke-dasharray: 4 7; opacity: .5; }
.av-skin { fill: var(--av-skin); }
.av-hair { fill: var(--av-hair); }
.av-beard { fill: var(--av-beard); }
.av-ink { fill: #0F1B2D; }
.av-line { fill: none; stroke: #0F1B2D; stroke-width: 3; stroke-linecap: round; }
.av-sweater { fill: var(--av-sweater); }
.av-collar { fill: color-mix(in srgb, var(--av-sweater) 82%, #000); }
.av-rib { fill: none; stroke: rgba(0, 0, 0, .18); stroke-width: 1.2; }
.av-strand { fill: none; stroke: #2B2627; stroke-width: 1.6; stroke-linecap: round; }
.av-brow { fill: var(--av-hair); }
.av-lens { fill: #0D0D10; }
.av-frame { fill: none; stroke: #050506; stroke-width: 2.6; stroke-linejoin: round; }
.av-glint { fill: rgba(255, 255, 255, .55); animation: av-glint 4.5s ease-in-out infinite; }
.av-lip { fill: #8C4E3E; }
.av-lid { fill: #C9D3DD; }
.av-mark { fill: none; stroke: var(--cobalt); stroke-width: 3; stroke-linejoin: round; }
.av-mark-dot { fill: var(--signal); }
.av-chip rect { fill: var(--card); stroke: var(--mist); stroke-width: 1.5; }
.av-chip text { font-family: var(--f-mono); font-size: 13px; font-weight: 600; fill: var(--ink); }
.av-chip .c2 { fill: var(--cobalt); }
.av-chip .c3 { fill: var(--signal); }
.av-body { animation: av-breathe 6s ease-in-out infinite; transform-origin: 120px 230px; }
.av-head { animation: av-tilt 9s ease-in-out infinite; transform-origin: 120px 150px; }
.av-hand-l { animation: av-type .5s ease-in-out infinite alternate; }
.av-hand-r { animation: av-type .5s ease-in-out .25s infinite alternate; }
.av-chip { animation: av-float 5s ease-in-out infinite; }
.av-chip.d2 { animation-delay: -1.6s; }
.av-chip.d3 { animation-delay: -3.2s; }
.av-glow { animation: av-glow 2.4s ease-in-out infinite; }
@keyframes av-breathe { 50% { transform: translateY(-3px); } }
@keyframes av-tilt { 0%, 100% { transform: rotate(0deg); } 30% { transform: rotate(-3deg); } 60% { transform: rotate(2deg); } }
@keyframes av-glint { 0%, 55% { transform: translateX(-46px); } 85%, 100% { transform: translateX(62px); } }
@keyframes av-type { to { transform: translateY(-4px); } }
@keyframes av-float { 50% { transform: translateY(-8px); } }
@keyframes av-glow { 50% { opacity: .35; } }
@media (prefers-reduced-motion: reduce) { .av-body, .av-head, .av-glint, .av-hand-l, .av-hand-r, .av-chip, .av-glow { animation: none; } .av-glint { opacity: 0; } }

/* Proof strip */
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--mist); border-bottom: 1px solid var(--mist); }
.stat { padding: 22px 18px; display: grid; gap: 4px; border-right: 1px solid var(--mist); }
.stat:last-child { border-right: 0; }
.stat b { font-family: var(--f-display); font-size: 34px; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.stat span { font-size: 14px; color: var(--slate); }
@media (max-width: 760px) { .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(--mist); } }

/* Services */
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
@media (max-width: 760px) { .grid-2 { grid-template-columns: 1fr; } }
.service { background: var(--card); border: 1px solid var(--mist); border-radius: 12px; padding: 24px; display: grid; gap: 10px; align-content: start; }
.service .ic { width: 36px; height: 36px; border-radius: 8px; display: grid; place-items: center; background: var(--cobalt-wash); color: var(--cobalt); }
.service .ic svg { width: 20px; height: 20px; }
.service p { color: var(--slate); font-size: 15.5px; }
.service ul { margin: 2px 0 0; padding-left: 18px; font-size: 15px; display: grid; gap: 3px; }

/* Case studies */
.cases { display: grid; gap: 18px; }
.case { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 28px; padding: 26px 0; border-top: 1px solid var(--mist); }
.case:last-child { border-bottom: 1px solid var(--mist); }
@media (max-width: 760px) { .case { grid-template-columns: 1fr; gap: 12px; } }
.case-meta { display: grid; gap: 8px; align-content: start; }
.case-meta b { font-family: var(--f-display); font-size: 40px; letter-spacing: -.02em; color: var(--cobalt); line-height: 1; }
.case-meta span { font-size: 14px; color: var(--slate); }
.case-body { display: grid; gap: 10px; }
.par { display: grid; grid-template-columns: 90px 1fr; gap: 12px; font-size: 15.5px; }
.par dt { font-family: var(--f-mono); font-size: 11.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--slate); padding-top: 3px; }
.par dd { margin: 0; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tags span { font-family: var(--f-mono); font-size: 12px; padding: 2px 8px; border: 1px solid var(--mist); border-radius: 999px; color: var(--slate); }
.more { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-top: 24px; }
@media (max-width: 760px) { .more { grid-template-columns: 1fr; } }
.more a { display: grid; gap: 4px; padding: 16px; border: 1px solid var(--mist); border-radius: 10px; text-decoration: none; color: var(--ink); background: var(--card); }
.more a:hover { border-color: var(--cobalt); }
.more a span { font-size: 14px; color: var(--slate); }

/* Process */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; counter-reset: s; }
@media (max-width: 860px) { .steps { grid-template-columns: 1fr; } }
.steps li { counter-increment: s; background: var(--card); border: 1px solid var(--mist); border-radius: 12px; padding: 24px; display: grid; gap: 8px; align-content: start; }
.steps li::before { content: counter(s, decimal-leading-zero); font-family: var(--f-mono); font-size: 13px; color: var(--signal); }
.steps .price { font-family: var(--f-mono); font-size: 13px; color: var(--ink); background: var(--signal-wash); justify-self: start; padding: 3px 9px; border-radius: 6px; }
.steps p { color: var(--slate); font-size: 15px; }

/* About */
.about .wrap { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 40px; }
@media (max-width: 860px) { .about .wrap { grid-template-columns: 1fr; } }
.about-copy { display: grid; gap: 16px; }
.facts { display: grid; gap: 0; align-content: start; }
.facts div { display: grid; grid-template-columns: 120px 1fr; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--mist); font-size: 15px; }
.facts dt { font-family: var(--f-mono); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--slate); padding-top: 2px; }
.facts dd { margin: 0; }

/* Contact */
.contact { background: var(--ink); color: var(--paper); }
.contact .wrap { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 32px; align-items: center; }
@media (max-width: 760px) { .contact .wrap { grid-template-columns: 1fr; } }
.contact h2 { color: var(--paper); }
.contact p { color: color-mix(in srgb, var(--paper) 72%, transparent); }
.contact .btn { background: var(--signal); border-color: var(--signal); color: #fff; }
.contact .btn:hover { background: var(--cobalt); border-color: var(--cobalt); }
.contact-list { display: grid; gap: 10px; font-size: 15.5px; }
.contact-list a { color: var(--paper); }
.contact-list span { font-family: var(--f-mono); font-size: 11.5px; letter-spacing: .1em; text-transform: uppercase; opacity: .6; display: block; }

/* Case study figures */
.case-fig { margin: 8px 0 0; border: 1px solid var(--mist); border-radius: 10px; background: var(--card); padding: 12px; overflow-x: auto; color: var(--ink); }
.case-fig img { display: block; width: 100%; height: auto; border-radius: 6px; }
.case-fig svg { display: block; width: 100%; min-width: 520px; height: auto; }
.case-fig text { font-family: var(--f-body); }
.dg-box { fill: none; stroke: currentColor; stroke-width: 1.3; }
.dg-zone { fill: var(--cobalt-wash); stroke: var(--cobalt); stroke-width: 1.2; stroke-dasharray: 5 4; }
.dg-t { font-size: 13px; font-weight: 600; fill: currentColor; }
.dg-s { font-size: 11.5px; fill: var(--slate); }
.dg-acc { font-size: 12px; font-weight: 600; fill: var(--cobalt); }
.dg-ln { stroke: currentColor; stroke-width: 1.3; }
.dg-a { fill: none; stroke: var(--cobalt); stroke-width: 1.6; }
.dg-dash { fill: none; stroke: var(--slate); stroke-width: 1.2; stroke-dasharray: 4 4; }

/* FAQ */
.faq { display: grid; max-width: 820px; border-top: 1px solid var(--mist); }
.faq details { border-bottom: 1px solid var(--mist); }
.faq summary { cursor: pointer; list-style: none; padding: 16px 32px 16px 0; font-weight: 600; font-size: 16.5px; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 13px; font-size: 22px; font-weight: 400; color: var(--cobalt); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding: 0 0 16px; color: var(--slate); max-width: 68ch; }

footer { padding-block: 28px; font-size: 14px; color: var(--slate); }
footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; }