/* BinaryDove Communications — layout system adapted from upsquaretech.com
   Grey / peach-red palette from the BinaryDove logo, Cormorant Garamond display + JetBrains Mono body. */

:root {
  /* Palette from the BinaryDove logo: neutral greys + peach red */
  --paper: #f5f5f4;
  --paper-deep: #ebebea;
  --peach: #fdebe8;
  --ink: #2b2b2d;
  --muted: #6b6b70;
  --grey: #a3a3a6;
  --clay: #e5463e;       /* peach red accent */
  --clay-dark: #c1302a;  /* deeper red for small text & bands */
  --line: rgba(43, 43, 45, 0.18);
  --line-light: rgba(245, 245, 244, 0.2);
  --serif: "Cormorant Garamond", Garamond, "Times New Roman", serif;
  --mono: "JetBrains Mono", SFMono-Regular, Consolas, monospace;
  --gutter: clamp(1.25rem, 4vw, 4.5rem);
  --section-space: clamp(5rem, 9vw, 9rem);
  --max-width: 1600px;
}

*, ::before, ::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 5rem; }
body {
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 1.03rem;
  line-height: 1.72;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
/* subtle paper grain */
body::before {
  position: fixed; inset: 0; z-index: 100; pointer-events: none; content: "";
  opacity: 0.022;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.7'/%3E%3C/svg%3E");
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }
img, svg, iframe { max-width: 100%; }
::selection { background: var(--clay); color: var(--paper); }
:focus-visible { outline: 2px solid var(--clay); outline-offset: 4px; }

.skip-link {
  position: fixed; top: .75rem; left: .75rem; z-index: 200;
  padding: .7rem .9rem; transform: translateY(-160%);
  background: var(--ink); color: var(--paper);
  font-size: .75rem; text-transform: uppercase; letter-spacing: .08em;
}
.skip-link:focus { transform: translateY(0); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  border-bottom: 1px solid var(--line);
  background: rgba(245, 245, 244, .95);
  backdrop-filter: blur(14px);
}
.nav {
  position: relative;
  display: flex; width: min(100%, var(--max-width)); min-height: 4.5rem;
  margin: 0 auto; padding-inline: var(--gutter);
  align-items: center; justify-content: space-between; gap: 2rem;
}
.brand { display: inline-flex; align-items: center; gap: .7rem; line-height: 1; }
.brand-logo { display: block; width: clamp(9.5rem, 14vw, 12rem); height: auto; }
.footer .brand-logo { width: 11rem; }
.nav-list {
  display: flex; margin: 0; padding: 0; align-items: center;
  gap: clamp(1rem, 2vw, 2.25rem); list-style: none;
  font-size: .82rem; text-transform: uppercase; letter-spacing: .08em;
}
.nav-list a { display: block; padding: .35rem 0; border-bottom: 1px solid transparent; }
.nav-list a:hover, .nav-list a:focus-visible, .nav-list a[aria-current="page"] {
  border-color: var(--clay); color: var(--clay-dark);
}
.nav-list .nav-cta a {
  padding: .55rem 1rem; border: 1px solid var(--ink);
  transition: background 150ms, color 150ms, border-color 150ms;
}
.nav-list .nav-cta a:hover, .nav-list .nav-cta a:focus-visible {
  background: var(--clay); border-color: var(--clay); color: var(--paper);
}
.menu-button {
  display: none; width: 2.75rem; height: 2.75rem; padding: 0;
  border: 0; background: transparent; color: var(--ink); cursor: pointer;
}
.menu-button span { display: block; width: 1.4rem; height: 1px; margin: .32rem auto; background: currentColor; transition: transform 160ms; }
.menu-button[aria-expanded="true"] span:first-child { transform: translateY(3px) rotate(45deg); }
.menu-button[aria-expanded="true"] span:last-child { transform: translateY(-3px) rotate(-45deg); }

/* ---------- Layout primitives ---------- */
.shell { width: min(100%, var(--max-width)); margin: 0 auto; padding-inline: var(--gutter); }
.kicker, .section-key, .number, .meta {
  margin: 0; font-size: .82rem; line-height: 1.45;
  text-transform: uppercase; letter-spacing: .11em;
}
.kicker { display: flex; align-items: center; gap: .8rem; }
.kicker::before { width: 1.8rem; height: 1px; content: ""; background: var(--clay); }

/* ---------- Hero (home) ---------- */
.hero { border-bottom: 1px solid var(--line); }
.hero-grid {
  display: grid; min-height: calc(100svh - 4.5rem);
  grid-template-columns: minmax(0, 1.7fr) minmax(20rem, .55fr);
}
.hero-main {
  display: flex; min-width: 0;
  padding: clamp(3.5rem, 7vw, 7rem) clamp(2rem, 5vw, 5.5rem) clamp(3.5rem, 6vw, 6rem) 0;
  flex-direction: column; justify-content: space-between;
}
.hero-title {
  margin: clamp(3rem, 7vh, 5.25rem) 0;
  font-family: var(--serif); font-size: clamp(4rem, 6.2vw, 6rem);
  font-weight: 500; line-height: .92; letter-spacing: -.045em; text-wrap: balance;
}
.hero-title span { display: block; }
.hero-title em, .section-title em, .page-title em, .manifesto-lead em, .contact-title em {
  color: var(--clay); font-weight: 500;
}
.hero-footer {
  display: grid; grid-template-columns: minmax(16rem, 34rem) auto;
  align-items: end; justify-content: space-between; gap: 2.5rem;
}
.hero-copy {
  margin: 0; font-family: var(--serif); font-size: clamp(1.45rem, 2.2vw, 2.1rem);
  font-weight: 500; line-height: 1.12; letter-spacing: -.02em;
}
.hero-actions { display: flex; align-items: flex-start; flex-direction: column; gap: .75rem; }
.text-link {
  display: inline-flex; width: fit-content; padding-bottom: .2rem;
  align-items: center; gap: .65rem; border-bottom: 1px solid;
  font-size: .8rem; text-transform: uppercase; letter-spacing: .07em;
}
.text-link span { color: var(--clay); transition: transform 150ms; }
.text-link:hover { color: var(--clay-dark); }
.text-link:hover span { transform: translateX(.2rem); }
.hero-panel {
  background: linear-gradient(180deg, var(--peach), transparent 70%);
  display: flex; padding: clamp(3.5rem, 7vw, 7rem) 0 clamp(3.5rem, 6vw, 6rem) clamp(2rem, 4vw, 4rem);
  flex-direction: column; justify-content: space-between; gap: 2.5rem;
  border-left: 1px solid var(--line);
}
.hero-panel-copy { max-width: 25rem; margin: 1.25rem 0 0; color: var(--muted); font-size: .96rem; }
.hero-stat {
  margin: 0; font-family: var(--serif); font-size: clamp(4rem, 6vw, 6.2rem);
  font-weight: 500; line-height: .8; letter-spacing: -.045em;
}
.hero-stat span {
  display: block; margin-top: 1rem; color: var(--muted); font-family: var(--mono);
  font-size: .8rem; line-height: 1.5; text-transform: uppercase; letter-spacing: .1em;
}
.scope-list { margin: 0; padding: 0; border-top: 1px solid var(--line); list-style: none; }
.scope-list li {
  padding: .72rem 0; border-bottom: 1px solid var(--line); color: var(--muted);
  font-size: .86rem; text-transform: uppercase; letter-spacing: .06em;
}
.scope-list a:hover { color: var(--clay-dark); }

/* ---------- Page hero (inner pages) ---------- */
.page-hero { border-bottom: 1px solid var(--line); }
.page-hero-grid {
  display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(18rem, .6fr);
  gap: clamp(2rem, 6vw, 6rem); align-items: end;
  padding-block: clamp(4rem, 8vw, 8rem) clamp(3.5rem, 6vw, 6rem);
}
.breadcrumb { margin: 0 0 clamp(2rem, 5vw, 4rem); color: var(--muted); font-size: .78rem; text-transform: uppercase; letter-spacing: .1em; }
.breadcrumb a:hover { color: var(--clay-dark); }
.breadcrumb span[aria-hidden] { margin: 0 .5rem; color: var(--clay); }
.page-title {
  margin: 1.5rem 0 0; font-family: var(--serif); font-size: clamp(3.6rem, 7vw, 7rem);
  font-weight: 500; line-height: .92; letter-spacing: -.045em; text-wrap: balance;
}
.page-lead { margin: 0; color: var(--muted); font-size: .98rem; max-width: 32rem; }

/* ---------- Sections ---------- */
.section { padding-block: var(--section-space); border-bottom: 1px solid var(--line); }
.section-top {
  display: grid; margin-bottom: clamp(3.5rem, 7vw, 6.5rem);
  grid-template-columns: minmax(8rem, .3fr) minmax(0, 1fr) minmax(15rem, .52fr);
  align-items: start; gap: clamp(2rem, 5vw, 5rem);
}
.section-key { padding-top: .5rem; color: var(--clay-dark); }
.section-title {
  max-width: 12ch; margin: 0; font-family: var(--serif); font-size: clamp(3.3rem, 6vw, 6.2rem);
  font-weight: 500; line-height: 1.02; letter-spacing: -.045em; text-wrap: balance;
}
.section-title--wide { max-width: none; font-size: clamp(3.3rem, 5.5vw, 5.8rem); line-height: .95; }
.section-intro { max-width: 28rem; margin: 0; padding-top: .45rem; color: var(--muted); font-size: .98rem; }

.manifesto {
  display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(18rem, .8fr);
  gap: clamp(3rem, 8vw, 8rem); align-items: start;
}
.manifesto-lead {
  position: sticky; top: 7rem;
  max-width: 18ch; margin: 0; font-family: var(--serif); font-size: clamp(2.6rem, 5vw, 5.2rem);
  font-weight: 500; line-height: .98; letter-spacing: -.04em;
}
.manifesto-copy { display: grid; gap: 1.4rem; }
.manifesto-copy p { margin: 0; color: var(--muted); font-size: .98rem; }
.manifesto-copy strong { color: var(--ink); font-weight: 500; }
.manifesto-copy .sign-off {
  padding-top: 1.4rem; border-top: 2px solid var(--clay);
  color: var(--ink); font-family: var(--serif); font-size: clamp(1.5rem, 2.2vw, 2rem);
  font-style: italic; line-height: 1.15;
}

.build-list { border-top: 1px solid var(--line); }
.build-row {
  display: grid; grid-template-columns: 3rem minmax(13rem, .55fr) minmax(18rem, 1fr) 1.5rem;
  padding: 1.8rem 0; align-items: baseline; gap: clamp(1rem, 4vw, 4rem);
  border-bottom: 1px solid var(--line);
}
a.build-row { transition: color 150ms, padding 150ms; }
a.build-row:hover { color: var(--clay-dark); }
a.build-row:hover .arrow { transform: translateX(.3rem); }
.build-row .number { color: var(--clay); }
.build-row h3 {
  margin: 0; font-family: var(--serif); font-size: clamp(2rem, 3vw, 3.2rem);
  font-weight: 500; line-height: 1; letter-spacing: -.03em;
}
.build-row p { max-width: 41rem; margin: 0; color: var(--muted); font-size: .96rem; }
.build-row .arrow { color: var(--clay); transition: transform 150ms; }

/* dark band */
.engineering { background: var(--ink); color: var(--paper); }
.engineering .section-title em, .engineering .principle .number { color: #f26b5f; }
.engineering.section { border-color: var(--line-light); }
.engineering .section-key { color: var(--clay); }
.engineering .section-intro { color: rgba(245, 245, 244, .58); }
.principles {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line-light); border-left: 1px solid var(--line-light);
}
.principles--two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.principle {
  min-height: 14rem; padding: clamp(1.25rem, 3vw, 2.5rem);
  border-right: 1px solid var(--line-light); border-bottom: 1px solid var(--line-light);
}
.principle .number { color: var(--clay); }
.principle h3 {
  margin: 2.2rem 0 .8rem; font-family: var(--serif); font-size: clamp(1.7rem, 2.8vw, 2.8rem);
  font-weight: 500; line-height: 1;
}
.principle p { max-width: 30rem; margin: 0; color: rgba(245, 245, 244, .62); font-size: .94rem; }

/* cards */
.work-grid {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px; background: var(--line); border: 1px solid var(--line);
}
.work-grid--two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.work-card {
  display: flex; min-height: 20rem; padding: clamp(1.5rem, 3vw, 2.75rem);
  flex-direction: column; justify-content: space-between; gap: 2rem;
  background: var(--paper); transition: background 150ms, color 150ms;
}
a.work-card:hover { background: var(--clay); color: var(--paper); }
.work-card h3 {
  max-width: 12ch; margin: 0 0 1rem; font-family: var(--serif); font-size: clamp(2.3rem, 3.6vw, 3.6rem);
  font-weight: 500; line-height: .95; letter-spacing: -.035em;
}
.work-card p { max-width: 30rem; margin: 0; color: var(--muted); font-size: .94rem; }
a.work-card:hover p, a.work-card:hover .number, a.work-card:hover .card-link { color: var(--paper); }
.work-card .number { color: var(--clay); }
.work-card { border-top: 3px solid transparent; }
a.work-card:hover { border-top-color: var(--clay-dark); }
.card-link { margin-top: 1.5rem; font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; color: var(--clay-dark); }

/* ---------- Contact band ---------- */
.contact { padding-block: var(--section-space); background: var(--clay-dark); color: var(--paper); }
.contact .kicker::before { background: var(--paper); }
.contact-grid {
  display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(18rem, .6fr);
  gap: clamp(3rem, 8vw, 8rem); align-items: end;
}
.contact-title {
  max-width: 11ch; margin: 2.5rem 0 3.5rem; font-family: var(--serif);
  font-size: clamp(3.6rem, 7vw, 7.4rem); font-weight: 500; line-height: .88; letter-spacing: -.05em;
}
.contact .contact-title em { color: var(--paper); font-style: italic; }
.contact-email {
  display: inline-flex; width: fit-content; padding-bottom: .25rem; align-items: center; gap: .65rem;
  border-bottom: 1px solid rgba(245, 245, 244, .65);
  font-family: var(--serif); font-size: clamp(1.5rem, 2.8vw, 2.8rem); font-weight: 500; line-height: 1.2;
  overflow-wrap: anywhere;
}
.contact-email:hover { border-color: var(--paper); }
.text-arrow { flex: 0 0 auto; font-family: var(--mono); font-size: .58em; font-style: normal; font-weight: 400; line-height: 1; }
.contact-copy { display: grid; gap: 2.5rem; }
.contact-copy p { margin: 0; color: var(--paper); font-size: .98rem; }
.presence { display: grid; gap: .7rem; }
.presence > * {
  display: flex; justify-content: space-between; gap: 1rem;
  padding-bottom: .6rem; border-bottom: 1px solid rgba(245, 245, 244, .3);
  font-size: .82rem; text-transform: uppercase; letter-spacing: .08em;
}
.presence small { opacity: .7; font-size: inherit; }
a.presence-item:hover { border-color: var(--paper); }

/* contact page details */
.detail-list { border-top: 1px solid var(--line); }
.detail-row {
  display: grid; grid-template-columns: minmax(10rem, .35fr) minmax(0, 1fr) 1.5rem;
  gap: clamp(1rem, 3vw, 3rem); padding: 1.5rem 0; align-items: baseline;
  border-bottom: 1px solid var(--line);
}
.detail-row .meta { color: var(--muted); }
.detail-row strong {
  font-family: var(--serif); font-size: clamp(1.8rem, 3.2vw, 3.2rem); font-weight: 500;
  line-height: 1.05; letter-spacing: -.03em; overflow-wrap: anywhere;
}
.detail-row .arrow { color: var(--clay); transition: transform 150ms; }
a.detail-row:hover strong { color: var(--clay-dark); }
a.detail-row:hover .arrow { transform: translateX(.3rem); }
.map-frame {
  position: relative; border: 1px solid var(--line); background: var(--paper-deep);
  aspect-ratio: 16 / 7; min-height: 20rem;
}
.map-frame iframe {
  position: absolute; inset: 0; width: 100%; height: 100%; border: 0;
  filter: grayscale(1) sepia(.25) contrast(.95);
}
.map-caption { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-top: 1rem; color: var(--muted); font-size: .82rem; text-transform: uppercase; letter-spacing: .08em; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); }
.footer { padding-block: 2.5rem 1.5rem; }
.footer-main {
  display: grid; padding-bottom: 2rem; grid-template-columns: minmax(13rem, 22rem) minmax(0, 1fr);
  gap: 2.5rem; align-items: start; border-bottom: 1px solid var(--line);
}
.footer-tag { margin: 1rem 0 0; color: var(--muted); font-size: .86rem; max-width: 22rem; }
.footer-links {
  display: flex; margin: 0; padding: 0; place-content: flex-start flex-end; flex-wrap: wrap;
  gap: .7rem 1.4rem; list-style: none; font-size: .8rem; text-transform: uppercase;
  letter-spacing: .06em; white-space: nowrap;
}
.footer-links a:hover { color: var(--clay-dark); }
.footer-bottom {
  display: flex; padding-top: 1.2rem; align-items: center; justify-content: space-between; gap: 2rem;
  color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .07em;
}
.footer-bottom a:hover { color: var(--clay-dark); }

/* ---------- 404 ---------- */
.notfound { min-height: calc(100svh - 4.5rem - 10rem); display: grid; align-content: center; padding-block: var(--section-space); }

/* ---------- Responsive ---------- */
@media (max-width: 1180px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr) 16rem; }
  .hero-title { font-size: clamp(4.15rem, 7vw, 4.8rem); }
}
@media (max-width: 1040px) {
  .nav-list {
    position: absolute; top: calc(100% + 1px); right: 0; left: 0; display: none;
    padding: 1rem var(--gutter) 1.4rem; flex-direction: column; align-items: stretch; gap: 0;
    border-bottom: 1px solid var(--line); background: var(--paper);
  }
  .nav-list[data-open="true"] { display: flex; }
  .nav-list a { padding: .85rem 0; border-bottom: 1px solid var(--line); }
  .nav-list .nav-cta a { margin-top: 1rem; text-align: center; }
  .menu-button { display: block; }
  .hero-footer { grid-template-columns: 1fr; align-items: start; }
  .hero-actions { flex-flow: wrap; gap: 1.25rem; }
  .section-top { grid-template-columns: 8rem minmax(0, 1fr); }
  .section-intro { grid-column: 2; }
  .principles { grid-template-columns: 1fr; }
}
@media (max-width: 900px) {
  .hero-grid { display: block; min-height: 0; }
  .hero-main { min-height: calc(100svh - 4.5rem); padding-right: 0; }
  .hero-panel { min-height: 19rem; padding: 2.5rem 0; border-top: 1px solid var(--line); border-left: 0; }
  .page-hero-grid, .manifesto, .contact-grid { grid-template-columns: 1fr; }
  .manifesto-lead { position: static; }
  .work-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  :root { --section-space: 5rem; }
  .hero-title { margin-block: 4rem; font-size: clamp(3.4rem, 14vw, 5.5rem); line-height: .98; letter-spacing: -.035em; }
  .section-top { grid-template-columns: 1fr; gap: 1.5rem; }
  .section-intro { grid-column: auto; }
  .section-title { font-size: clamp(3rem, 13vw, 5rem); }
  .manifesto-lead { font-size: clamp(2.4rem, 11vw, 4rem); }
  .build-row { grid-template-columns: 2.5rem 1fr; gap: .7rem 1rem; }
  .build-row p { grid-column: 2; }
  .build-row .arrow { display: none; }
  .work-grid, .work-grid--two, .principles--two { grid-template-columns: 1fr; }
  .work-card { min-height: 15rem; }
  .detail-row { grid-template-columns: 1fr auto; gap: .3rem 1rem; }
  .detail-row .meta { grid-column: 1 / -1; }
  .map-frame { aspect-ratio: 4 / 5; }
  .footer-main { grid-template-columns: 1fr; gap: 1.4rem; }
  .footer-links { justify-content: flex-start; }
}
@media (max-width: 440px) {
  body { font-size: 1rem; }
  .hero-title { margin-block: 3.5rem; font-size: clamp(3rem, 14vw, 4.4rem); }
  .page-title { font-size: clamp(3rem, 14vw, 4.4rem); }
  .hero-actions { flex-direction: column; }
  .contact-title { font-size: clamp(3.2rem, 15vw, 4.6rem); }
  .footer-bottom { align-items: flex-start; flex-direction: column; gap: .6rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, ::before, ::after { transition-duration: .01ms !important; }
}