/* ------------------------------------------------------------------
   Alting & IT — site styles
   Typography: Inter (variable), self-hosted.
   Palette taken from the logo: navy #153251, blue #81b8dc, mint #94c5b6.
   ------------------------------------------------------------------ */

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

:root {
  color-scheme: light;

  --paper: #f6f5f1;
  --paper-deep: #eceae3;
  --white: #fffefb;
  --ink: #153251;
  --ink-deep: #0e2540;
  --ink-night: #0a1c31;
  --text: #2b4361;
  --muted: #5d7089;
  --muted-on-dark: #a9bdd2;
  --line: rgba(21, 50, 81, 0.14);
  --line-on-dark: rgba(255, 255, 255, 0.14);
  --blue: #81b8dc;
  --blue-strong: #3c8ec7;
  --mint: #94c5b6;
  --mint-strong: #4f9683;

  --sans: "Inter", ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --serif: var(--sans);

  --wrap: 1200px;
  --gutter: clamp(20px, 5vw, 64px);
  --section: clamp(88px, 12vw, 160px);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  font-feature-settings: "cv11", "ss01";
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

a:focus-visible,
.button:focus-visible {
  outline: 3px solid var(--blue-strong);
  outline-offset: 4px;
}

h1,
h2,
h3,
p {
  margin: 0;
  overflow-wrap: break-word;
}

h1,
h2,
h3 {
  font-family: var(--sans);
  font-weight: 620;
  color: var(--ink);
  letter-spacing: -0.03em;
}

h1 em,
h2 em,
.integrity em {
  font-style: normal;
}

h2 {
  font-size: clamp(32px, 3.8vw, 50px);
  line-height: 1.05;
}

h3 {
  font-size: 24px;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

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

.kicker {
  margin: 0 0 22px;
  color: var(--mint-strong);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: 32px clamp(32px, 6vw, 96px);
  align-items: end;
  margin-bottom: clamp(48px, 6vw, 80px);
}

.section-head .kicker {
  grid-column: 1 / -1;
  margin-bottom: 0;
}

.section-intro {
  max-width: 46ch;
  color: var(--muted);
  font-size: 17px;
  padding-bottom: 6px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  background: var(--ink);
  color: var(--white);
  font-weight: 600;
  text-decoration: none;
  transform: translateY(-200%);
}

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

/* Buttons -------------------------------------------------------- */

.button {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 52px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.005em;
  text-decoration: none;
  transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--ink);
  color: var(--white);
}

.button-primary:hover {
  background: var(--ink-deep);
}

.button-ghost {
  border-color: var(--line);
  color: var(--ink);
  background: transparent;
}

.button-ghost:hover {
  border-color: var(--ink);
}

.text-link {
  display: inline-block;
  margin-top: 28px;
  color: var(--ink);
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  border-bottom: 1px solid var(--mint);
  padding-bottom: 2px;
  transition: border-color 160ms ease;
}

.text-link:hover {
  border-color: var(--ink);
}

/* Header --------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(246, 245, 241, 0.86);
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  min-height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-emblem {
  width: 34px;
  height: auto;
}

.brand-wordmark {
  width: 128px;
  height: auto;
  margin-top: 2px;
}

nav {
  display: flex;
  align-items: center;
  gap: 30px;
  font-size: 14px;
  font-weight: 550;
  color: var(--ink);
}

nav a {
  text-decoration: none;
  padding: 6px 0;
  border-bottom: 1px solid transparent;
  transition: border-color 160ms ease, color 160ms ease;
}

nav a:not(.nav-contact):hover {
  border-color: var(--mint);
}

.nav-contact {
  padding: 10px 18px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  transition: background-color 160ms ease, color 160ms ease;
}

.nav-contact:hover {
  background: var(--ink);
  color: var(--white);
}

/* Hero ----------------------------------------------------------- */

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(64px, 8vw, 112px) 0 clamp(64px, 8vw, 104px);
}

.hero::before {
  content: "";
  position: absolute;
  inset: auto -10% -40% 45%;
  height: 120%;
  background:
    radial-gradient(closest-side, rgba(129, 184, 220, 0.28), rgba(129, 184, 220, 0) 70%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 8fr) minmax(220px, 4fr);
  gap: clamp(40px, 6vw, 96px);
  align-items: center;
}

.hero h1 {
  font-size: clamp(42px, 5.2vw, 74px);
  line-height: 1.02;
  letter-spacing: -0.04em;
  max-width: 16ch;
}

.hero h1 em {
  color: var(--blue-strong);
}

.lede {
  max-width: 54ch;
  margin-top: 36px;
  color: var(--text);
  font-size: clamp(18px, 1.6vw, 21px);
  line-height: 1.55;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 40px;
}

.hero-emblem {
  width: min(100%, 360px);
  justify-self: end;
  opacity: 0.95;
  filter: drop-shadow(0 30px 50px rgba(21, 50, 81, 0.18));
}

/* Motto ---------------------------------------------------------- */

.motto {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: clamp(28px, 3.4vw, 44px) 0;
}

.motto p {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 40px;
  font-weight: 560;
  letter-spacing: -0.02em;
  font-size: clamp(20px, 2.2vw, 28px);
  line-height: 1.2;
  color: var(--ink);
}

.motto span:last-child {
  color: var(--mint-strong);
}

/* Services ------------------------------------------------------- */

.services {
  padding: var(--section) 0;
}

.service-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--ink);
}

.service {
  position: relative;
  padding: 34px 28px 44px 0;
  border-right: 1px solid var(--line);
  margin-right: 28px;
}

.service:last-child {
  border-right: 0;
  margin-right: 0;
}

.num {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--mint-strong);
  letter-spacing: 0.08em;
}

.service h3 {
  margin-top: 48px;
  font-size: 26px;
}

.service p {
  margin-top: 18px;
  max-width: 36ch;
  font-size: 16px;
  line-height: 1.6;
  color: var(--muted);
}

/* Responsible AI ------------------------------------------------- */

.ai {
  position: relative;
  overflow: hidden;
  padding: var(--section) 0;
  background: var(--ink-deep);
  color: var(--muted-on-dark);
}

.ai::after {
  content: "";
  position: absolute;
  inset: -30% -20% auto auto;
  width: 60vw;
  height: 60vw;
  max-width: 900px;
  max-height: 900px;
  background: radial-gradient(closest-side, rgba(129, 184, 220, 0.18), rgba(129, 184, 220, 0) 70%);
  pointer-events: none;
}

.ai .kicker {
  color: var(--mint);
}

.ai h2 {
  color: var(--white);
  max-width: 17ch;
  font-size: clamp(30px, 3.3vw, 44px);
}

.ai-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  gap: clamp(48px, 7vw, 120px);
  align-items: start;
}

.ai-copy p + p {
  margin-top: 20px;
}

.ai-copy p:not(.kicker) {
  max-width: 50ch;
  font-size: 17px;
}

.ai-copy h2 + p {
  margin-top: 32px;
  color: var(--white);
  font-size: 19px;
}

.questions {
  padding-top: 8px;
}

.questions-title {
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mint);
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line-on-dark);
}

.questions ol {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: q;
}

.questions li {
  counter-increment: q;
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 18px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line-on-dark);
  font-weight: 520;
  letter-spacing: -0.015em;
  font-size: clamp(18px, 1.6vw, 22px);
  line-height: 1.3;
  color: var(--white);
}

.questions li::before {
  content: counter(q, decimal-leading-zero);
  font-size: 13px;
  font-weight: 600;
  line-height: 2.1;
  color: var(--mint);
  letter-spacing: 0.04em;
}

/* Approach ------------------------------------------------------- */

.approach {
  padding: var(--section) 0;
  background: var(--paper);
}

.principles {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 28px;
  margin: 0;
}

.principles > div {
  padding: 28px 28px 32px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 16px;
}

.principles dt {
  font-size: 22px;
  font-weight: 620;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--ink);
}

.principles dd {
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--muted);
}

/* Integrity line ------------------------------------------------- */

.integrity {
  max-width: 38ch;
  margin-top: clamp(48px, 6vw, 72px);
  padding-top: clamp(28px, 4vw, 40px);
  border-top: 1px solid var(--line);
  font-weight: 560;
  letter-spacing: -0.025em;
  font-size: clamp(22px, 2.2vw, 28px);
  line-height: 1.25;
  color: var(--ink);
}

.integrity em {
  color: var(--mint-strong);
}

/* Owner ---------------------------------------------------------- */

.owner {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 28px;
  align-items: center;
  max-width: 820px;
  margin-top: clamp(48px, 6vw, 72px);
  padding-top: clamp(32px, 4vw, 48px);
  border-top: 1px solid var(--line);
}

.owner 
.owner p {
  font-size: 16px;
  line-height: 1.6;
  color: var(--muted);
}

.owner strong {
  font-weight: 600;
  color: var(--ink);
}

.owner a {
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid var(--mint);
  white-space: nowrap;
}

.owner a:hover {
  border-color: var(--ink);
}

/* Infrastructure ------------------------------------------------- */

.infra {
  position: relative;
  overflow: hidden;
  padding: var(--section) 0;
  background: var(--paper-deep);
}

.infra-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  gap: clamp(48px, 7vw, 120px);
  align-items: start;
}

.infra-copy h2 {
  max-width: 12ch;
}

.infra-copy h2 + p {
  margin-top: 32px;
  font-size: 19px;
  color: var(--ink);
}

.infra-copy p + p {
  margin-top: 20px;
  max-width: 52ch;
}

.facts {
  list-style: none;
  margin: 0;
  padding: 0;
  padding-top: 8px;
  border-top: 1px solid var(--ink);
}

.facts li {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.5;
}

.facts strong {
  font-weight: 620;
  font-size: 18px;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--ink);
}

.facts span {
  color: var(--muted);
}

.infra-emblem {
  position: absolute;
  right: -6%;
  bottom: -28%;
  width: clamp(260px, 28vw, 420px);
  opacity: 0.08;
  filter: grayscale(0.2);
  pointer-events: none;
}

/* Contact -------------------------------------------------------- */

.contact {
  padding: var(--section) 0;
  background: var(--ink-night);
  color: var(--muted-on-dark);
}

.contact .kicker {
  color: var(--mint);
}

.contact h2 {
  color: var(--white);
  font-size: clamp(34px, 4.4vw, 60px);
  max-width: 15ch;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: clamp(48px, 7vw, 120px);
  align-items: end;
}

.contact-copy h2 + p {
  margin-top: 28px;
  max-width: 46ch;
  font-size: 18px;
}

.contact-email {
  display: inline-block;
  margin-top: 44px;
  font-weight: 620;
  letter-spacing: -0.03em;
  font-size: clamp(24px, 2.8vw, 38px);
  line-height: 1.1;
  color: var(--white);
  text-decoration: none;
  border-bottom: 2px solid var(--mint);
  padding-bottom: 4px;
  transition: border-color 160ms ease, color 160ms ease;
}

.contact-email:hover {
  color: var(--mint);
}

.contact-phone {
  display: block;
  margin-top: 22px;
  font-size: 18px;
  color: var(--white);
  text-decoration: none;
  font-variant-numeric: tabular-nums;
}

.contact-phone:hover {
  color: var(--mint);
}

.contact-details {
  margin: 0;
  border-top: 1px solid var(--line-on-dark);
}

.contact-details > div {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-on-dark);
  font-size: 15px;
  line-height: 1.55;
}

.contact-details dt {
  color: var(--mint);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding-top: 3px;
}

.contact-details dd {
  margin: 0;
  color: #dbe5ef;
}

.contact-details a {
  color: var(--white);
  text-decoration: none;
  border-bottom: 1px solid rgba(148, 197, 182, 0.5);
}

.contact-details a:hover {
  border-color: var(--mint);
}

/* Footer --------------------------------------------------------- */

.site-footer {
  background: var(--ink-night);
  color: var(--muted-on-dark);
  border-top: 1px solid var(--line-on-dark);
  padding: 28px 0 36px;
  font-size: 13px;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 32px;
}

.site-footer .brand-wordmark {
  filter: brightness(0) invert(1);
  opacity: 0.9;
}

.footer-motto {
  font-size: 13px;
  color: #dbe5ef;
}

/* Responsive ----------------------------------------------------- */

@media (max-width: 1080px) {
  .service-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .service {
    border-bottom: 1px solid var(--line);
  }

  .service:nth-child(2n) {
    border-right: 0;
    margin-right: 0;
  }

  .service h3 {
    margin-top: 40px;
  }

  .principles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  nav a:not(.nav-contact) {
    display: none;
  }

  .hero-grid,
  .ai-grid,
  .infra-grid,
  .contact-grid,
  .section-head {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-emblem {
    display: none;
  }

  .hero h1 {
    max-width: none;
  }

  .section-intro {
    padding-bottom: 0;
  }

  .infra-emblem {
    right: -12%;
    bottom: -8%;
    width: 240px;
  }
}

@media (max-width: 720px) {
  .header-inner {
    min-height: 64px;
  }

  .brand-wordmark {
    width: 112px;
  }

  .hero {
    padding-top: 56px;
  }

  .hero h1 {
    font-size: clamp(36px, 10.5vw, 52px);
  }

  .lede {
    margin-top: 28px;
  }

  .actions .button {
    width: 100%;
    justify-content: center;
  }

  .motto p {
    flex-direction: column;
    gap: 4px;
  }

  .service-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .service,
  .service:nth-child(2n) {
    border-right: 0;
    margin-right: 0;
    padding: 28px 0 32px;
  }

  .service h3 {
    margin-top: 20px;
    font-size: 24px;
  }

  .principles {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
  }

  .questions li {
    grid-template-columns: 32px 1fr;
    gap: 12px;
  }

  .owner {
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
  }

  .facts li,
  .contact-details > div {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }

  .facts strong {
    font-size: 18px;
  }

  .contact-email {
    font-size: clamp(22px, 6.5vw, 30px);
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}