/* IBM Plex, SIL Open Font License 1.1 */
@font-face {
  font-family: 'IBM Plex Sans';
  font-weight: 400;
  font-display: swap;
  src: url('fonts/ibm-plex-sans-latin-400-normal.woff2') format('woff2');
}
@font-face {
  font-family: 'IBM Plex Sans';
  font-weight: 500;
  font-display: swap;
  src: url('fonts/ibm-plex-sans-latin-500-normal.woff2') format('woff2');
}
@font-face {
  font-family: 'IBM Plex Sans';
  font-weight: 600;
  font-display: swap;
  src: url('fonts/ibm-plex-sans-latin-600-normal.woff2') format('woff2');
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-weight: 400;
  font-display: swap;
  src: url('fonts/ibm-plex-mono-latin-400-normal.woff2') format('woff2');
}

:root {
  --bg: #f4f5f3;
  --surface: #ffffff;
  --ink: #1b2420;
  --ink-2: #4c5751;
  --ink-3: #646d68;
  --rule: #dce1dd;
  --accent: #2f7a4e;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161918;
    --surface: #1f2321;
    --ink: #e9ece9;
    --ink-2: #b4bcb7;
    --ink-3: #8d9691;
    --rule: #303633;
    --accent: #6fbf8c;
    color-scheme: dark;
  }
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Top bar */

.top {
  position: sticky;
  top: 0;
  z-index: 2;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--rule);
}

.top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 18px;
  text-decoration: none;
}

.brand-cut {
  fill: var(--bg);
}

.top-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 15px;
}

.top-nav a:not(.button) {
  text-decoration: none;
  color: var(--ink-2);
}

.top-nav a:not(.button):hover {
  color: var(--ink);
}

/* Buttons */

.button {
  display: inline-flex;
  align-items: center;
  height: 44px;
  padding: 0 20px;
  border-radius: 8px;
  background: var(--ink);
  color: var(--bg);
  font-weight: 500;
  text-decoration: none;
  border: 1px solid var(--ink);
}

.button:hover {
  opacity: 0.9;
}

.button-quiet {
  background: transparent;
  color: var(--ink);
  border-color: var(--rule);
}

.top-nav .button {
  height: 36px;
  padding: 0 14px;
}

/* Hero */

.hero {
  padding-top: 88px;
  text-align: center;
}

.kicker {
  margin: 0 0 16px;
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  font-size: 14px;
  color: var(--accent);
}

h1 {
  margin: 0 auto;
  max-width: 820px;
  font-size: clamp(38px, 6vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-weight: 600;
}

.lead {
  margin: 24px auto 0;
  max-width: 640px;
  font-size: 20px;
  color: var(--ink-2);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 32px;
}

.small {
  margin: 14px 0 0;
  font-size: 14px;
  color: var(--ink-3);
}

.shot img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 12px;
  border: 1px solid var(--rule);
  box-shadow: 0 24px 64px rgb(0 0 0 / 0.1);
  background: var(--surface);
}

.hero-shot {
  display: block;
  margin-top: 64px;
}

/* Points */

.points {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 40px;
  padding-top: 112px;
}

.points h2 {
  margin: 0 0 8px;
  font-size: 19px;
  font-weight: 600;
}

.points p {
  margin: 0;
  color: var(--ink-2);
}

/* How */

.how,
.iso,
.cta {
  padding-top: 120px;
}

.section-title {
  margin: 0 0 32px;
  font-size: clamp(28px, 4vw, 40px);
  letter-spacing: -0.01em;
  font-weight: 600;
}

.steps {
  list-style: none;
  counter-reset: step;
  margin: 0 0 48px;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.steps li {
  counter-increment: step;
  display: grid;
  align-content: start;
  gap: 4px;
  padding-top: 16px;
  border-top: 2px solid var(--ink);
}

.steps li::before {
  content: counter(step);
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  font-size: 14px;
  color: var(--accent);
}

.steps span {
  color: var(--ink-2);
}

.pair {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

/* ISO */

.iso p {
  max-width: 720px;
  margin: 0;
  font-size: 19px;
  color: var(--ink-2);
}

.facts {
  list-style: none;
  padding: 0;
  margin: 32px 0 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}

.facts li {
  padding: 14px 16px;
  border: 1px solid var(--rule);
  border-radius: 8px;
  background: var(--surface);
  font-size: 15px;
}

/* Closing */

.cta {
  text-align: center;
}

.contact {
  padding-top: 120px;
}

.cta h2 {
  margin: 0;
  font-size: clamp(30px, 4.5vw, 48px);
  letter-spacing: -0.01em;
  font-weight: 600;
}

.cta p {
  margin: 12px 0 0;
  color: var(--ink-2);
}

/* Contact */

.contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr);
  gap: 48px;
  padding-bottom: 120px;
}

.contact-intro p {
  color: var(--ink-2);
  margin: 0 0 12px;
}

.contact-form {
  display: grid;
  gap: 14px;
}

.contact-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.contact-form label {
  display: grid;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
}

.contact-form input,
.contact-form textarea {
  font: inherit;
  font-size: 16px;
  padding: 10px 12px;
  border: 1px solid var(--rule);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.contact-trap {
  position: absolute;
  left: -9999px;
}

.contact-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.contact-status {
  margin: 0;
  font-size: 14px;
  color: var(--ink-2);
}

.button:disabled {
  opacity: 0.6;
}

.foot {
  border-top: 1px solid var(--rule);
  font-size: 14px;
  color: var(--ink-3);
}

.foot-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding-top: 24px;
  padding-bottom: 32px;
}

.foot nav {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

@media (max-width: 960px) {
  .points {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .contact,
  .contact-row {
    grid-template-columns: 1fr;
  }

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

  .top-nav a:not(.button) {
    display: none;
  }

  .hero {
    padding-top: 56px;
  }

  .lead {
    font-size: 18px;
  }
}