/* KVH Holdings, Inc. */

@font-face {
  font-family: "Caslon Display";
  src: url("/fonts/caslon-display.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Public Sans";
  src: url("/fonts/public-sans.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Public Sans";
  src: url("/fonts/public-sans-italic.woff2") format("woff2");
  font-weight: 100 900;
  font-style: italic;
  font-display: swap;
}

:root {
  color-scheme: light dark;

  --paper: oklch(0.972 0.006 45);
  --ink: oklch(0.24 0.014 30);
  --ink-soft: oklch(0.47 0.014 30);
  --rule: oklch(0.86 0.01 40);
  --accent: oklch(0.44 0.105 25);

  --space-3xs: 4px;
  --space-2xs: 8px;
  --space-xs: 12px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 32px;
  --space-xl: 48px;
  --space-2xl: 64px;
  --space-3xl: 96px;
  --gutter: clamp(16px, 5vw, 72px);

  --font-display: "Caslon Display", Georgia, "Times New Roman", serif;
  --font-text: "Public Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;

  --text-label: 0.75rem;
  --text-small: 0.875rem;
  --text-body: 1.0625rem;
  --text-lede: 1.25rem;

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: oklch(0.19 0.01 30);
    --ink: oklch(0.93 0.008 60);
    --ink-soft: oklch(0.74 0.012 45);
    --rule: oklch(0.34 0.012 30);
    --accent: oklch(0.76 0.085 30);
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-text);
  font-size: var(--text-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

::selection {
  background: color-mix(in oklch, var(--accent) 22%, transparent);
}

a {
  color: inherit;
  text-decoration-line: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
  text-decoration-color: color-mix(in oklch, currentColor 35%, transparent);
  transition: color 200ms var(--ease-out), text-decoration-color 200ms var(--ease-out);
}

a:hover {
  color: var(--accent);
  text-decoration-color: currentColor;
}

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

address {
  font-style: normal;
}

.label {
  font-size: var(--text-label);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.skip {
  position: absolute;
  left: var(--gutter);
  top: -100px;
  padding: var(--space-2xs) var(--space-xs);
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
  z-index: 10;
}

.skip:focus {
  top: var(--space-sm);
}

/* ---------- Home ---------- */

.plate {
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  grid-template-rows: 1fr auto;
  padding: var(--gutter);
  gap: var(--space-2xl);
}

.title {
  align-self: end;
  padding-top: var(--space-3xl);
}

.display {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(3.5rem, 1.4rem + 9.5vw, 10rem);
  line-height: 0.9;
  letter-spacing: -0.02em;
  font-kerning: normal;
}

.display .stop {
  color: var(--accent);
}

.lede {
  margin: var(--space-lg) 0 0;
  max-width: 32ch;
  font-size: var(--text-lede);
  line-height: 1.45;
  color: var(--ink-soft);
}

.base {
  display: grid;
  gap: var(--space-xl);
  border-top: 1px solid var(--rule);
  padding-top: var(--space-md);
}

.register {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg) var(--space-xl);
  margin: 0;
}

.register dt {
  margin-bottom: var(--space-2xs);
}

.register dd {
  margin: 0;
  font-size: var(--text-small);
  line-height: 1.65;
}

.colophon {
  margin: 0;
  font-size: var(--text-small);
  color: var(--ink-soft);
}

@media (min-width: 960px) {
  .base {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: var(--space-md);
    align-items: end;
  }

  .register {
    grid-column: 7 / -1;
    grid-row: 1;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .colophon {
    grid-column: 1 / 7;
    grid-row: 1;
  }
}

/* ---------- Inner pages ---------- */

.page {
  padding: 0 var(--gutter);
}

.masthead {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-xs) var(--space-md);
  padding: var(--space-md) 0 var(--space-sm);
  border-bottom: 1px solid var(--rule);
}

.mark {
  font-family: var(--font-display);
  font-size: 1.625rem;
  line-height: 1;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.mark:hover {
  color: var(--ink);
}

.mark .stop {
  color: var(--accent);
}

.nav {
  display: flex;
  gap: var(--space-md);
}

.nav a {
  font-size: var(--text-label);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink-soft);
}

.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--ink);
}

.nav a[aria-current="page"] {
  text-decoration-line: underline;
  text-decoration-color: var(--accent);
  text-underline-offset: 0.5em;
}

.doc {
  display: grid;
  gap: var(--space-xl);
  padding: var(--space-2xl) 0 var(--space-3xl);
}

.doc-rail h1 {
  margin: 0 0 var(--space-sm);
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.75rem, 1.7rem + 4vw, 4.75rem);
  line-height: 0.95;
  letter-spacing: -0.015em;
}

.toc {
  list-style: none;
  margin: var(--space-lg) 0 0;
  padding: var(--space-sm) 0 0;
  border-top: 1px solid var(--rule);
  font-size: var(--text-small);
  line-height: 1.5;
  display: grid;
  gap: var(--space-2xs);
}

.toc a {
  display: inline-flex;
  gap: var(--space-xs);
  color: var(--ink-soft);
  text-decoration: none;
}

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

.toc .num {
  min-width: 1.75em;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
}

.doc-body {
  max-width: 68ch;
}

.doc-body > :first-child {
  margin-top: 0;
}

.doc-body .intro {
  font-size: var(--text-lede);
  line-height: 1.5;
}

.doc-body h2 {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
  margin: var(--space-2xl) 0 var(--space-sm);
  padding-top: var(--space-md);
  border-top: 1px solid var(--rule);
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.625rem, 1.35rem + 1vw, 2rem);
  line-height: 1.15;
  letter-spacing: -0.005em;
  scroll-margin-top: var(--space-lg);
}

.doc-body h2 .num {
  flex: none;
  font-family: var(--font-text);
  font-size: var(--text-label);
  font-weight: 500;
  letter-spacing: 0.12em;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
  transform: translateY(-0.35em);
}

.doc-body h3 {
  margin: var(--space-lg) 0 var(--space-2xs);
  font-size: var(--text-body);
  font-weight: 600;
  line-height: 1.4;
}

.doc-body p {
  margin: var(--space-sm) 0;
}

.doc-body ul {
  margin: var(--space-sm) 0;
  padding-left: 1.15em;
}

.doc-body li + li {
  margin-top: var(--space-2xs);
}

.doc-body li::marker {
  color: var(--ink-soft);
}

.doc-body strong {
  font-weight: 600;
}

.contact-line {
  margin: var(--space-md) 0 var(--space-lg);
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 1.1rem + 2.2vw, 2.75rem);
  line-height: 1.1;
  overflow-wrap: anywhere;
}

.links {
  list-style: none;
  padding: 0;
  margin: var(--space-sm) 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-md);
}

.links li + li {
  margin-top: 0;
}

.links .label {
  display: block;
  margin-bottom: var(--space-3xs);
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-2xs) var(--space-md);
  padding: var(--space-md) 0 var(--space-xl);
  border-top: 1px solid var(--rule);
  font-size: var(--text-small);
  color: var(--ink-soft);
}

@media (min-width: 960px) {
  .doc {
    grid-template-columns: minmax(220px, 1fr) minmax(0, 2.4fr);
    gap: var(--space-2xl);
  }

  .doc-rail {
    position: sticky;
    top: var(--space-xl);
    align-self: start;
  }
}

/* ---------- Motion ---------- */

@media (prefers-reduced-motion: no-preference) {
  .reveal {
    animation: rise 1100ms var(--ease-out) both;
  }

  .reveal-2 {
    animation-delay: 160ms;
  }

  .reveal-3 {
    animation-delay: 320ms;
  }

  @keyframes rise {
    from {
      opacity: 0;
      transform: translateY(12px);
    }
    to {
      opacity: 1;
      transform: none;
    }
  }
}