@import url("fonts/fonts.css");

:root {
  --paper: #edf0f4;
  --surface: #fbfcfd;
  --ink: #131a2b;
  --ink-2: #55617a;
  --rule: rgba(19, 26, 43, 0.14);
  --rule-soft: rgba(19, 26, 43, 0.08);
  --amber: #e0912f;
  --amber-deep: #96590b;
  --teal: #1f6f66;
  --dim: rgba(19, 26, 43, 0.2);

  --display: "Sora", "Trebuchet MS", sans-serif;
  --body: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --gutter: clamp(20px, 5vw, 72px);
  --max: 1180px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

::selection { background: rgba(224, 145, 47, 0.28); }

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

.wrap {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding-inline: var(--gutter);
}

.label {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-2);
}

/* ---------- header ---------- */

.masthead {
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
}

.masthead .wrap {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  padding-block: 22px;
}

.wordmark {
  font-family: var(--display);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
}

.wordmark span { color: var(--amber-deep); }

.masthead nav {
  display: flex;
  gap: clamp(16px, 3vw, 34px);
}

.masthead nav a {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--ink-2);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.masthead nav a:hover {
  color: var(--ink);
  border-bottom-color: var(--amber);
}

/* ---------- hero ---------- */

.hero {
  padding-block: clamp(56px, 9vw, 108px) 0;
}

.hero .label { display: block; margin-bottom: clamp(22px, 3vw, 34px); }

h1 {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(34px, 5.4vw, 66px);
  line-height: 1.06;
  letter-spacing: -0.028em;
  margin: 0;
  max-width: 26ch;
}

h1 .lit {
  background-image: linear-gradient(90deg, var(--amber), rgba(224, 145, 47, 0.15));
  background-repeat: no-repeat;
  background-position: 0 100%;
  padding-bottom: 0.1em;
  animation: sweep 0.9s 0.5s cubic-bezier(0.2, 0.8, 0.3, 1) both;
}

.lead {
  margin: clamp(26px, 3.4vw, 40px) 0 0;
  max-width: 62ch;
  font-size: clamp(17px, 1.5vw, 20px);
  color: var(--ink-2);
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 30px;
  font-family: var(--mono);
  font-size: 15px;
  text-decoration: none;
  color: var(--ink);
  border-bottom: 2px solid var(--amber);
  padding-bottom: 3px;
  transition: gap 0.2s ease;
}

.hero-cta:hover { gap: 16px; }
.hero-cta svg { flex: none; }

/* ---------- signature: luminescence scale ---------- */

.lumline {
  display: flex;
  align-items: flex-end;
  gap: clamp(3px, 0.7vw, 7px);
  height: clamp(84px, 12vw, 148px);
  margin-top: clamp(48px, 7vw, 86px);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 1px;
}

.lumline i {
  flex: 1;
  height: var(--h);
  min-width: 1px;
  background: color-mix(in oklab, var(--amber) calc(var(--l) * 100%), var(--dim));
  transform-origin: bottom;
  animation: rise 0.62s cubic-bezier(0.2, 0.85, 0.3, 1) both;
  animation-delay: calc(var(--i) * 11ms);
}

.lumline-foot {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 14px;
  padding-bottom: clamp(24px, 4vw, 44px);
}

@keyframes rise {
  from { transform: scaleY(0.04); opacity: 0; }
  to { transform: scaleY(1); opacity: 1; }
}

@keyframes sweep {
  from { background-size: 0 5px; }
  to { background-size: 100% 5px; }
}

/* ---------- sections ---------- */

section { padding-block: clamp(56px, 8vw, 96px); }

section + section { border-top: 1px solid var(--rule-soft); }

.sec-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: clamp(30px, 4vw, 46px);
}

.sec-head::before {
  content: "";
  width: 26px;
  height: 3px;
  background: var(--amber);
  flex: none;
  transform: translateY(-4px);
}

h2 {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(23px, 2.6vw, 31px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0;
}

h3 {
  font-family: var(--display);
  font-weight: 600;
  font-size: 19px;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin: 0 0 10px;
}

p { margin: 0; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}

.card {
  background: var(--surface);
  padding: clamp(24px, 3vw, 34px);
}

.card p { color: var(--ink-2); font-size: 16px; }

.card-mark {
  display: block;
  width: 14px;
  height: 14px;
  margin-bottom: 22px;
  background: var(--amber);
  box-shadow: 0 0 0 5px rgba(224, 145, 47, 0.16);
}

.card:nth-child(2) .card-mark { background: var(--teal); box-shadow: 0 0 0 5px rgba(31, 111, 102, 0.14); }
.card:nth-child(3) .card-mark { background: var(--ink); box-shadow: 0 0 0 5px rgba(19, 26, 43, 0.1); }

/* ---------- focus ---------- */

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(30px, 5vw, 68px);
  align-items: start;
}

.split > p { color: var(--ink-2); }

.tags {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}

.tags li {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px 0;
  border-bottom: 1px solid var(--rule-soft);
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0.01em;
}

.tags li::before {
  content: "";
  width: 7px;
  height: 7px;
  flex: none;
  border-radius: 50%;
  background: var(--amber);
  opacity: calc(1 - (var(--n) * 0.14));
}

/* ---------- approach ---------- */

.defs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: clamp(26px, 4vw, 52px);
  margin: 0;
}

.defs dt {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber-deep);
  padding-top: 14px;
  border-top: 2px solid var(--ink);
  margin-bottom: 12px;
}

.defs dd {
  margin: 0;
  color: var(--ink-2);
  font-size: 16px;
}

/* ---------- company ---------- */

.company {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
  gap: clamp(30px, 5vw, 68px);
  align-items: start;
}

.company p { color: var(--ink-2); max-width: 46ch; }

.card-co {
  background: var(--surface);
  border: 1px solid var(--rule);
  padding: clamp(24px, 3vw, 34px);
}

.co-rows { margin: 0; }

.co-rows > div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 20px;
  padding: 13px 0;
  border-bottom: 1px solid var(--rule-soft);
}

.co-rows > div:last-child { border-bottom: 0; padding-bottom: 0; }

.co-rows dt {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-2);
  white-space: nowrap;
}

.co-rows dd {
  margin: 0;
  font-size: 16px;
  text-align: right;
}

.co-rows a { color: var(--amber-deep); text-decoration-thickness: 1px; text-underline-offset: 3px; }

/* ---------- footer ---------- */

footer {
  border-top: 1px solid var(--rule);
  padding-block: 30px 44px;
}

footer .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 14px;
}

footer a { color: var(--ink-2); text-decoration: none; border-bottom: 1px solid var(--rule); }
footer a:hover { color: var(--ink); border-bottom-color: var(--amber); }

/* ---------- prose (privacy) ---------- */

.prose { max-width: 68ch; padding-block: clamp(48px, 7vw, 84px); }
.prose h1 { font-size: clamp(30px, 4vw, 44px); max-width: none; }
.prose h2 { margin: clamp(34px, 4vw, 48px) 0 12px; font-size: 21px; }
.prose p, .prose li { color: var(--ink-2); }
.prose p { margin-bottom: 14px; }
.prose ul { padding-left: 20px; }
.prose li { margin-bottom: 8px; }
.prose a { color: var(--amber-deep); }
.prose .updated { font-family: var(--mono); font-size: 13px; margin-top: 8px; }

/* ---------- responsive ---------- */

@media (max-width: 720px) {
  h1 { line-height: 1.18; }
  .split, .company { grid-template-columns: minmax(0, 1fr); }
  .masthead .wrap { flex-direction: column; align-items: flex-start; gap: 14px; }
  .lumline i:nth-child(n + 49) { display: none; }
  .co-rows > div { flex-direction: column; gap: 4px; }
  .co-rows dd { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  .lumline i { animation: none; }
  h1 .lit { animation: none; background-size: 100% 5px; }
  * { transition: none !important; }
}