/* Signal · Geist */

:root {
  --paper: #e8eef2;
  --ink: #0f1c2e;
  --ink-strong: #071018;
  --muted: #4d5d6f;
  --line: #c5d0db;
  --accent: #0d7a7a;
  --header-h: 4.25rem;
  --header-accent-h: 3px;
  --header-accent: linear-gradient(90deg, #0d7a7a 0%, #1a4d7a 55%, #0f1c2e 100%);
  --font-display: "Geist Variable", "Segoe UI", system-ui, sans-serif;
  --font-body: "Newsreader", Georgia, serif;
  --font-label: "Geist Variable", "Segoe UI", system-ui, sans-serif;
  --display-weight: 600;
  --display-tracking: -0.035em;
  --control-radius: 2px;
  --bg-image:
    radial-gradient(ellipse 80% 50% at 100% -10%, rgba(13, 122, 122, 0.14), transparent 55%),
    radial-gradient(ellipse 60% 40% at 0% 100%, rgba(26, 77, 122, 0.1), transparent 50%),
    linear-gradient(180deg, #eef3f6 0%, #e8eef2 40%, #e3eaef 100%);
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  background: var(--paper);
  background-image: var(--bg-image);
  background-attachment: fixed;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
}

h1,
h2,
h3,
h4,
.navbar-brand,
.about-facts > li strong {
  font-family: var(--font-display);
  font-weight: var(--display-weight);
  letter-spacing: var(--display-tracking);
}

.container {
  max-width: 68rem;
}

a {
  color: inherit;
}

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

.skip-link {
  position: absolute;
  left: 1rem;
  top: -100%;
  z-index: 2000;
  background: var(--ink);
  color: var(--paper);
  padding: 0.5rem 0.9rem;
  text-decoration: none;
}

.skip-link:focus {
  top: 0.75rem;
}

.site-header {
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.site-header::before {
  content: "";
  display: block;
  height: var(--header-accent-h);
  background: var(--header-accent);
}

.navbar {
  min-height: var(--header-h);
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

.navbar-brand {
  font-size: 1.4rem;
  color: var(--ink);
}

.navbar-brand:hover,
.navbar-brand:focus {
  color: var(--ink);
}

.nav-link {
  color: var(--muted);
  font-size: 0.95rem;
  padding: 0.4rem 0.85rem;
}

.nav-link:hover,
.nav-link:focus {
  color: var(--ink);
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.15rem;
  margin-top: 0.75rem;
  padding: 0.2rem;
  font-family: var(--font-label);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  background: color-mix(in srgb, var(--ink) 5%, var(--paper));
  border: 1px solid var(--line);
  border-radius: var(--control-radius);
}

@media (min-width: 992px) {
  .lang-switch {
    margin-top: 0;
    margin-left: 1rem;
  }
}

.lang-link {
  color: var(--muted);
  text-decoration: none;
  padding: 0.35rem 0.55rem;
  border-radius: calc(var(--control-radius) - 1px);
  min-width: 2.25rem;
  text-align: center;
  line-height: 1.2;
}

.lang-link:hover,
.lang-link:focus,
.lang-link:visited,
.lang-link:active {
  color: var(--ink);
  text-decoration: none;
}

.lang-link.is-active {
  color: var(--ink);
  background: var(--paper);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--line) 80%, var(--ink));
}

.navbar-toggler {
  border: 1px solid var(--line);
  border-radius: var(--control-radius);
}

.navbar-toggler:focus {
  box-shadow: none;
}

@media (max-width: 991.98px) {
  .navbar-collapse {
    padding-bottom: 0.75rem;
  }
}

.hero {
  padding: 4.75rem 0 3.5rem;
}

.section {
  padding: 4.5rem 0;
  border-top: 1px solid var(--line);
}

section[id] {
  scroll-margin-top: calc(var(--header-h) + 0.75rem);
}

.eyebrow {
  margin-bottom: 0.85rem;
  color: var(--accent);
  font-family: var(--font-label);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.7rem, 7vw, 5.4rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
}

.role {
  margin: 1rem 0 1.25rem;
  font-family: var(--font-body);
  font-size: 1.25rem;
  color: var(--ink);
}

.lead-text {
  max-width: 38rem;
  margin-bottom: 0;
  font-family: var(--font-body);
  font-size: 1.2rem;
  line-height: 1.5;
  color: var(--ink);
}

.hero-actions {
  margin-top: 2rem;
}

.btn {
  border-radius: var(--control-radius);
  padding: 0.8rem 1.15rem;
  font-size: 0.95rem;
  font-family: var(--font-label);
}

.btn-ink {
  background: var(--ink);
  border: 1px solid var(--ink);
  color: var(--paper);
}

.btn-ink:hover,
.btn-ink:focus {
  background: var(--ink-strong);
  border-color: var(--ink-strong);
  color: var(--paper);
}

.btn-line {
  background: transparent;
  border: 1px solid var(--ink);
  color: var(--ink);
}

.btn-line:hover,
.btn-line:focus {
  background: var(--ink);
  color: var(--paper);
}

.section h2 {
  margin: 0 0 2rem;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.1;
}

.service {
  height: 100%;
  padding: 1.5rem 0 0.25rem;
  border-top: 1px solid var(--line);
}

.service-index {
  display: block;
  margin-bottom: 0.65rem;
  color: var(--accent);
  font-family: var(--font-label);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
}

.service h3,
.work-list h3,
.work-list h4,
.contact-list h3 {
  margin: 0 0 0.65rem;
  font-size: 1.4rem;
  line-height: 1.25;
}

.service p,
.work-list p,
.contact-list p,
.about-copy {
  margin: 0;
  color: var(--muted);
  font-family: var(--font-body);
}

.project-domain + .project-domain {
  margin-top: 3.5rem;
}

.project-category {
  margin: 0 0 1rem;
  color: var(--ink);
  font-size: 1.15rem;
  letter-spacing: 0.01em;
}

.work-list .case-line + .case-line {
  margin-top: 0.55rem;
}

.work-list .case-line strong {
  color: var(--ink);
  font-weight: 600;
}

.about-facts {
  margin: 0;
  padding: 0;
  list-style: none;
}

.about-facts > li {
  padding: 1rem 0;
  border-top: 1px solid var(--line);
}

.about-facts > li strong {
  display: block;
  font-size: 1.15rem;
  font-weight: var(--display-weight);
  line-height: 1.3;
  color: var(--ink);
}

.work-list,
.contact-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 3rem;
  row-gap: 1.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.work-list > li,
.contact-list > li {
  padding: 1.5rem 0 0.25rem;
  border-top: 1px solid var(--line);
}

.work-meta {
  margin-bottom: 0.65rem;
}

.work-meta span,
.contact-label {
  display: block;
  color: var(--accent);
  font-family: var(--font-label);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
}

.contact-label {
  margin-bottom: 0.65rem;
}

.contact-list h3 a {
  color: inherit;
  text-decoration: none;
}

.contact-list h3 a:hover,
.contact-list h3 a:focus {
  color: var(--accent);
}

.work-list a,
.legal a,
.site-footer a {
  text-underline-offset: 0.15em;
}

.work-list a:hover,
.legal a:hover,
.site-footer a:hover {
  color: var(--accent);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.5rem 0 2.5rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer p {
  margin: 0;
}

.legal {
  padding: 3rem 0 4.5rem;
}

.legal h1 {
  margin: 0 0 2rem;
  font-size: clamp(2.4rem, 5vw, 3.6rem);
}

.legal h2,
.legal h3,
.legal h4 {
  margin-top: 1.75rem;
  font-family: var(--font-display);
  font-weight: var(--display-weight);
}

.legal h2 {
  font-size: 1.35rem;
}

.legal h3,
.legal h4 {
  font-size: 1.15rem;
}

.legal h2:first-of-type {
  margin-top: 0.5rem;
}

.legal p,
.legal li {
  max-width: 44rem;
}

.legal ul {
  padding-left: 0;
}

@media (max-width: 767.98px) {
  .hero {
    padding-top: 3rem;
  }

  .section {
    padding: 3.25rem 0;
  }

  .work-list,
  .contact-list {
    grid-template-columns: 1fr;
  }
}