/* sevenroute.dev — editorial minimal */
@import url('https://fonts.googleapis.com/css2?family=Newsreader:ital,opsz,wght@0,6..72,300;0,6..72,400;0,6..72,500;0,6..72,600;0,6..72,700;0,6..72,800;1,6..72,400;1,6..72,500&family=IBM+Plex+Sans:wght@300;400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root {
  --paper: #F5F2EC;
  --paper-2: #ECE7DD;
  --rule: #1a1f1f;
  --rule-soft: rgba(14, 20, 20, 0.14);
  --ink: #0E1414;
  --ink-2: #2a3232;
  --muted: #6B7373;
  --teal: oklch(0.55 0.09 195);
  --teal-deep: oklch(0.42 0.08 210);
  --moss: oklch(0.50 0.07 165);

  --serif: 'Newsreader', 'Times New Roman', serif;
  --sans: 'IBM Plex Sans', system-ui, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, monospace;

  --container: 1320px;
  --gutter: 28px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

::selection { background: var(--ink); color: var(--paper); }

/* ---------- Top bar / masthead ---------- */
.topbar {
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 50;
}

.topbar__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: 56px;
  gap: 24px;
}

.topbar__meta {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-2);
  display: flex;
  gap: 18px;
  align-items: center;
}

.topbar__meta .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--moss);
  display: inline-block;
  box-shadow: 0 0 0 3px color-mix(in oklch, var(--moss) 20%, transparent);
  animation: pulse 2.4s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

.topbar__brand {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 22px;
  letter-spacing: -0.01em;
  font-style: italic;
}
.topbar__brand sup {
  font-family: var(--mono);
  font-style: normal;
  font-size: 10px;
  font-weight: 400;
  vertical-align: super;
  margin-left: 2px;
  color: var(--teal-deep);
  letter-spacing: 0.05em;
}

.topbar__right {
  justify-self: end;
  display: flex;
  gap: 22px;
  align-items: center;
}

.topbar__right a {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-2);
  position: relative;
  padding: 4px 0;
  transition: color 0.2s ease;
}
.topbar__right a::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}
.topbar__right a:hover::after,
.topbar__right a[aria-current="page"]::after { transform: scaleX(1); }
.topbar__right a[aria-current="page"] { color: var(--ink); }

/* ---------- Section nav (kicker bar) ---------- */
.kicker {
  border-bottom: 1px solid var(--rule);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  overflow: hidden;
}
.kicker__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  gap: 36px;
  align-items: center;
  height: 36px;
  white-space: nowrap;
  overflow-x: auto;
  scrollbar-width: none;
}
.kicker__inner::-webkit-scrollbar { display: none; }
.kicker__inner span:first-child {
  color: var(--teal);
  font-weight: 500;
}
.kicker a:hover { color: var(--teal); }

/* ---------- Container ---------- */
.wrap {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--rule);
  margin-top: 96px;
  padding: 40px 0 32px;
  background: var(--paper);
}
.footer__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
}
.footer__brand {
  font-family: var(--serif);
  font-style: italic;
  font-size: 32px;
  font-weight: 500;
  line-height: 1.1;
}
.footer__brand small {
  display: block;
  font-family: var(--mono);
  font-style: normal;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 10px;
}
.footer h4 {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin-bottom: 12px;
  font-weight: 500;
}
.footer ul { list-style: none; }
.footer li { margin-bottom: 8px; }
.footer li a {
  font-size: 14px;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}
.footer li a:hover { border-bottom-color: var(--ink); }
.footer__bottom {
  max-width: var(--container);
  margin: 32px auto 0;
  padding: 16px var(--gutter) 0;
  border-top: 1px solid var(--rule-soft);
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
}

/* ---------- Generic ---------- */
.label {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}
.label--accent { color: var(--teal-deep); }

.rule { height: 1px; background: var(--rule); border: 0; }
.rule--soft { background: var(--rule-soft); }

h1, h2, h3, h4 { font-family: var(--serif); font-weight: 500; letter-spacing: -0.015em; }

.display {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(48px, 8vw, 132px);
  line-height: 0.95;
  letter-spacing: -0.025em;
}
.display em {
  font-style: italic;
  font-weight: 400;
  color: var(--teal-deep);
}

/* link with underline reveal */
.ulink {
  position: relative;
  display: inline;
  background-image: linear-gradient(to right, var(--ink), var(--ink));
  background-size: 100% 1px;
  background-repeat: no-repeat;
  background-position: 0 100%;
  transition: background-size 0.35s ease, color 0.2s;
  padding-bottom: 1px;
}
.ulink:hover {
  color: var(--teal-deep);
  background-image: linear-gradient(to right, var(--teal-deep), var(--teal-deep));
}

/* reveal-on-scroll */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* placeholder image (striped) */
.ph {
  background:
    repeating-linear-gradient(135deg, transparent 0 18px, rgba(14,20,20,0.04) 18px 19px),
    var(--paper-2);
  border: 1px solid var(--rule-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  position: relative;
  overflow: hidden;
}
.ph::before {
  content: '';
  position: absolute;
  inset: 14px;
  border: 1px dashed var(--rule-soft);
  pointer-events: none;
}

/* page intro */
.page-intro {
  padding: 72px 0 48px;
  border-bottom: 1px solid var(--rule);
}
.page-intro .label { display: block; margin-bottom: 24px; }
.page-intro h1 {
  font-size: clamp(56px, 9vw, 140px);
  line-height: 0.92;
  letter-spacing: -0.03em;
  font-weight: 400;
  max-width: 1100px;
}
.page-intro h1 em { color: var(--teal-deep); }
.page-intro__meta {
  margin-top: 28px;
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--ink-2);
}
.page-intro__meta span b {
  display: block;
  font-weight: 500;
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

/* tag chip */
.tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-2);
  padding: 4px 8px;
  border: 1px solid var(--rule-soft);
  background: var(--paper-2);
}

/* responsive */
@media (max-width: 880px) {
  .topbar__meta { display: none; }
  .topbar__inner { grid-template-columns: auto 1fr; }
  .topbar__right { gap: 16px; }
  .topbar__right a:not(.always) { display: none; }
  .footer__inner { grid-template-columns: 1fr 1fr; }
}