/* Altas Digital — dependency-free static website */
:root {
  --navy-950: #071827;
  --navy-900: #0b2239;
  --navy-800: #102f4d;
  --navy-700: #17466f;
  --blue-600: #1678d3;
  --blue-500: #2f8fe7;
  --blue-100: #e9f4ff;
  --ink: #102a43;
  --muted: #52677a;
  --line: #d9e4ec;
  --surface: #f4f8fb;
  --white: #ffffff;
  --shadow: 0 22px 60px rgba(7, 24, 39, 0.12);
  --radius: 18px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible,
summary:focus-visible {
  outline: 3px solid #65b7ff;
  outline-offset: 4px;
  border-radius: 4px;
}

.container {
  width: min(calc(100% - 40px), var(--container));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 999;
  top: 12px;
  left: 12px;
  transform: translateY(-150%);
  padding: 10px 16px;
  background: var(--white);
  color: var(--navy-950);
  border-radius: 8px;
  font-weight: 700;
  box-shadow: var(--shadow);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  z-index: 30;
  top: 0;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(217, 228, 236, 0.85);
  backdrop-filter: blur(16px);
}

.header-inner {
  min-height: 86px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.brand img {
  width: 230px;
  height: auto;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  font-size: 0.94rem;
  font-weight: 650;
}

.desktop-nav > a:not(.button) {
  color: #304b61;
}

.desktop-nav > a:not(.button):hover {
  color: var(--blue-600);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 24px;
  border: 1px solid var(--blue-600);
  border-radius: 10px;
  background: var(--blue-600);
  color: var(--white);
  font-weight: 750;
  line-height: 1.2;
  box-shadow: 0 12px 28px rgba(22, 120, 211, 0.22);
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
  background: #0b68bd;
  border-color: #0b68bd;
}

.button-small {
  min-height: 42px;
  padding-inline: 17px;
  border-radius: 8px;
  font-size: 0.9rem;
}

.mobile-menu {
  display: none;
  position: relative;
}

.mobile-menu summary {
  cursor: pointer;
  list-style: none;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 12px;
  font-weight: 700;
}

.mobile-menu summary::-webkit-details-marker {
  display: none;
}

.mobile-menu nav {
  position: absolute;
  top: 48px;
  right: 0;
  min-width: 220px;
  padding: 12px;
  display: grid;
  gap: 4px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.mobile-menu nav a {
  padding: 9px 11px;
  border-radius: 7px;
  font-weight: 650;
}

.mobile-menu nav a:hover {
  background: var(--surface);
}

.hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  padding: 100px 0 94px;
  color: var(--white);
  background:
    radial-gradient(circle at 76% 26%, rgba(47, 143, 231, 0.23), transparent 25%),
    linear-gradient(120deg, #071827 0%, #0b2239 56%, #0c3155 100%);
}

.hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  width: 580px;
  height: 580px;
  right: -210px;
  bottom: -310px;
  border: 1px solid rgba(129, 196, 255, 0.2);
  border-radius: 50%;
  box-shadow:
    0 0 0 78px rgba(129, 196, 255, 0.025),
    0 0 0 156px rgba(129, 196, 255, 0.018);
}

.hero-grid {
  position: absolute;
  z-index: -2;
  inset: 0;
  opacity: 0.12;
  background-image:
    linear-gradient(rgba(255,255,255,0.11) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.11) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to right, transparent 0%, #000 46%, #000 100%);
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(330px, 0.65fr);
  gap: 76px;
  align-items: center;
}

.eyebrow,
.section-kicker {
  margin: 0 0 18px;
  color: var(--blue-600);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #83c6ff;
}

.hero h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(3.4rem, 7vw, 6.5rem);
  line-height: 0.98;
  letter-spacing: -0.065em;
  font-weight: 780;
}

.hero h1 span {
  color: #6bbcff;
}

.hero-lead {
  max-width: 700px;
  margin: 30px 0 0;
  color: #cfdeea;
  font-size: 1.18rem;
  line-height: 1.75;
}

.hero-actions {
  margin-top: 35px;
  display: flex;
  align-items: center;
  gap: 26px;
}

.text-link {
  color: #dceeff;
  font-weight: 750;
}

.text-link:hover {
  color: #7fc5ff;
}

.trust-list {
  margin: 38px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 16px 27px;
  color: #c9d9e6;
  list-style: none;
  font-size: 0.92rem;
}

.trust-list li {
  position: relative;
  padding-left: 20px;
}

.trust-list li::before {
  content: "";
  position: absolute;
  top: 0.65em;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #56aeff;
  box-shadow: 0 0 0 5px rgba(86, 174, 255, 0.12);
}

.hero-panel {
  padding: 26px;
  border: 1px solid rgba(158, 207, 248, 0.2);
  border-radius: 20px;
  background: rgba(8, 31, 52, 0.7);
  box-shadow: 0 34px 80px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(12px);
}

.status-row {
  padding-bottom: 22px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: #cee4f6;
  border-bottom: 1px solid rgba(173, 214, 247, 0.16);
  font-size: 0.84rem;
  font-weight: 650;
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #43d49b;
  box-shadow: 0 0 0 6px rgba(67, 212, 155, 0.12);
}

.capability-stack {
  display: grid;
}

.capability {
  padding: 23px 0;
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  border-bottom: 1px solid rgba(173, 214, 247, 0.13);
}

.capability-number {
  color: #68baff;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.8rem;
}

.capability strong {
  display: block;
  margin-bottom: 4px;
  font-size: 1.03rem;
}

.capability p {
  margin: 0;
  color: #afc5d7;
  font-size: 0.9rem;
  line-height: 1.55;
}

.panel-footer {
  padding-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.panel-footer span {
  padding: 6px 9px;
  color: #c9e5fb;
  border: 1px solid rgba(125, 188, 239, 0.19);
  border-radius: 999px;
  background: rgba(28, 101, 157, 0.14);
  font-size: 0.72rem;
}

.section {
  padding: 105px 0;
}

.intro-section {
  padding-bottom: 70px;
}

.split-intro {
  display: grid;
  grid-template-columns: 0.55fr 1.45fr;
  gap: 80px;
}

.split-intro h2,
.section-heading h2,
.experience-copy h2,
.contact-card h2 {
  margin: 0;
  color: var(--navy-950);
  font-size: clamp(2.1rem, 4vw, 3.65rem);
  line-height: 1.12;
  letter-spacing: -0.045em;
}

.split-intro > div > p {
  max-width: 780px;
  margin: 25px 0 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.services-section {
  padding-top: 50px;
  background: var(--surface);
  border-top: 1px solid #e4edf3;
  border-bottom: 1px solid #e4edf3;
}

.section-heading {
  margin-bottom: 48px;
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: 70px;
  align-items: end;
}

.section-heading > p {
  margin: 0 0 6px;
  color: var(--muted);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.service-card {
  min-height: 430px;
  padding: 31px;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 10px 25px rgba(7, 24, 39, 0.035);
}

.service-card.featured-card {
  color: var(--white);
  border-color: var(--navy-900);
  background: linear-gradient(145deg, var(--navy-900), #113d62);
}

.service-index {
  margin-bottom: 48px;
  color: var(--blue-600);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.78rem;
  font-weight: 800;
}

.featured-card .service-index {
  color: #71beff;
}

.service-card h3 {
  margin: 0 0 12px;
  color: var(--navy-950);
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.featured-card h3 {
  color: var(--white);
}

.service-card > p {
  margin: 0;
  color: var(--muted);
}

.featured-card > p {
  color: #c7d9e8;
}

.service-card ul {
  margin: auto 0 0;
  padding: 24px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.featured-card ul {
  border-color: rgba(203, 226, 244, 0.16);
}

.service-card li {
  position: relative;
  padding: 5px 0 5px 18px;
  color: #425b70;
  font-size: 0.91rem;
}

.featured-card li {
  color: #d0e0ec;
}

.service-card li::before {
  content: "";
  position: absolute;
  top: 0.9em;
  left: 0;
  width: 7px;
  height: 2px;
  background: var(--blue-500);
}

.experience-section {
  color: var(--white);
  background: var(--navy-950);
}

.experience-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 100px;
}

.light-kicker {
  color: #73beff;
}

.experience-copy h2 {
  color: var(--white);
}

.experience-copy > p:not(.section-kicker):not(.experience-note) {
  margin: 25px 0 0;
  color: #b9ccdb;
  font-size: 1.06rem;
}

.experience-note {
  margin: 35px 0 0;
  padding-left: 16px;
  color: #839bad;
  border-left: 2px solid #2b6f9f;
  font-size: 0.76rem;
  line-height: 1.6;
}

.experience-list {
  border-top: 1px solid rgba(173, 207, 231, 0.19);
}

.experience-list article {
  padding: 28px 0;
  display: grid;
  grid-template-columns: 125px 1fr;
  gap: 25px;
  border-bottom: 1px solid rgba(173, 207, 231, 0.19);
}

.experience-list article > span {
  color: #6db9f7;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.experience-list h3 {
  margin: 0 0 7px;
  font-size: 1.12rem;
}

.experience-list p {
  margin: 0;
  color: #a9bece;
  font-size: 0.92rem;
}

.narrow-heading {
  grid-template-columns: minmax(0, 780px);
}

.approach-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.approach-grid article {
  min-height: 310px;
  padding: 33px 27px;
  border-right: 1px solid var(--line);
}

.approach-grid article:last-child {
  border-right: 0;
}

.approach-grid span,
.process-list > li > span {
  color: var(--blue-600);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.76rem;
  font-weight: 800;
}

.approach-grid h3 {
  margin: 75px 0 12px;
  color: var(--navy-950);
  font-size: 1.2rem;
}

.approach-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 0.93rem;
}

.process-section {
  padding-top: 45px;
  background: #fbfdff;
}

.process-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.process-list li {
  padding: 28px 0;
  display: grid;
  grid-template-columns: 95px 1fr;
  border-bottom: 1px solid var(--line);
}

.process-list li > div {
  display: grid;
  grid-template-columns: 0.55fr 1.45fr;
  gap: 50px;
}

.process-list h3 {
  margin: 0;
  color: var(--navy-950);
  font-size: 1.15rem;
}

.process-list p {
  margin: 0;
  color: var(--muted);
}

.contact-section {
  padding: 70px 0 110px;
  background: #fbfdff;
}

.contact-card {
  padding: 70px;
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: 75px;
  align-items: end;
  color: var(--white);
  border-radius: 24px;
  background:
    radial-gradient(circle at 90% 10%, rgba(73, 168, 255, 0.22), transparent 30%),
    linear-gradient(135deg, #0b2239, #0c365c);
  box-shadow: var(--shadow);
}

.contact-card h2 {
  color: var(--white);
  font-size: clamp(2.1rem, 3.7vw, 3.4rem);
}

.contact-card > div > p:not(.section-kicker) {
  max-width: 750px;
  margin: 23px 0 0;
  color: #c6d8e7;
}

.contact-actions {
  text-align: center;
}

.button-light {
  width: 100%;
  background: var(--white);
  color: var(--navy-900);
  border-color: var(--white);
  box-shadow: none;
}

.button-light:hover {
  background: #eaf5ff;
  border-color: #eaf5ff;
}

.contact-actions p {
  margin: 15px 0 0;
  color: #9db6c9;
  font-size: 0.78rem;
}

.site-footer {
  padding: 70px 0 25px;
  background: var(--white);
}

.footer-layout {
  padding-bottom: 54px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
}

.footer-brand img {
  width: 225px;
  height: auto;
}

.footer-brand p {
  max-width: 390px;
  margin: 20px 0 0;
  color: var(--muted);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 35px;
}

.footer-links div {
  display: grid;
  align-content: start;
  gap: 9px;
}

.footer-links strong {
  margin-bottom: 7px;
  color: var(--navy-950);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer-links a {
  color: var(--muted);
}

.footer-links a:hover {
  color: var(--blue-600);
}

.footer-bottom {
  padding-top: 21px;
  display: flex;
  justify-content: space-between;
  gap: 30px;
  color: #6d8192;
  border-top: 1px solid var(--line);
  font-size: 0.78rem;
}

.footer-bottom p {
  margin: 0;
}

@media (max-width: 1020px) {
  .desktop-nav {
    display: none;
  }

  .mobile-menu {
    display: block;
  }

  .hero-layout,
  .experience-layout,
  .contact-card {
    grid-template-columns: 1fr;
  }

  .hero-layout {
    gap: 55px;
  }

  .hero-panel {
    max-width: 650px;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .experience-layout {
    gap: 58px;
  }

  .approach-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .approach-grid article:nth-child(2) {
    border-right: 0;
  }

  .approach-grid article:nth-child(-n+2) {
    border-bottom: 1px solid var(--line);
  }

  .contact-card {
    padding: 55px;
    gap: 40px;
  }

  .contact-actions {
    max-width: 480px;
  }
}

@media (max-width: 720px) {
  .container {
    width: min(calc(100% - 28px), var(--container));
  }

  .header-inner {
    min-height: 70px;
  }

  .brand img {
    width: 190px;
    height: auto;
  }

  .hero {
    padding: 73px 0 72px;
  }

  .hero h1 {
    font-size: clamp(3rem, 15vw, 4.7rem);
  }

  .hero-lead {
    font-size: 1.02rem;
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .trust-list {
    display: grid;
  }

  .section {
    padding: 78px 0;
  }

  .intro-section {
    padding-bottom: 48px;
  }

  .split-intro {
    grid-template-columns: 1fr;
    gap: 18px;
  }

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

  .service-card {
    min-height: 390px;
  }

  .experience-list article {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .approach-grid {
    grid-template-columns: 1fr;
  }

  .approach-grid article,
  .approach-grid article:nth-child(2) {
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .approach-grid article:last-child {
    border-bottom: 0;
  }

  .approach-grid h3 {
    margin-top: 35px;
  }

  .process-list li {
    grid-template-columns: 48px 1fr;
  }

  .process-list li > div {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .contact-card {
    width: min(calc(100% - 20px), var(--container));
    padding: 43px 25px;
    border-radius: 18px;
  }

  .footer-layout {
    grid-template-columns: 1fr;
    gap: 45px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}