/* Abdirashid Dahir — personal site */

:root {
  --paper: #ffffff;
  --panel: #f2f0ea;
  --ink: #15181b;
  --ink-2: #3c4248;
  --muted: #6b7178;
  --rule: #dcd8cf;
  --accent: #1c6b4f;      /* deep green: energy / sustainability */
  --accent-soft: #e4efe9;
  --amber: #c8891c;
  --tan: #b8a88c;

  --sans: "Schibsted Grotesk", "Helvetica Neue", Arial, sans-serif;
  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

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

/* ---------- Home: split layout ---------- */

.split {
  display: grid;
  grid-template-columns: minmax(0, 46fr) minmax(0, 54fr);
  min-height: 100vh;
}

.split__art {
  background: var(--panel);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 32px;
}

.split__art svg {
  width: 100%;
  max-width: 400px;
  height: auto;
  position: sticky;
  top: 48px;
}

.split__text {
  padding: 80px clamp(24px, 7vw, 120px) 48px;
  display: flex;
  flex-direction: column;
  max-width: 820px;
}

.name {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(3rem, 6.2vw, 5.1rem);
  line-height: 0.98;
  letter-spacing: -0.035em;
  margin: 0;
}

.rule {
  width: 56px;
  height: 2px;
  background: var(--accent);
  border: 0;
  margin: 34px 0 30px;
}

.lede {
  font-size: 1.16rem;
  line-height: 1.62;
  color: var(--ink-2);
  max-width: 36em;
  margin: 0 0 40px;
}

.bignav { list-style: none; margin: 0; padding: 0; }
.bignav li { margin: 0 0 10px; }
.bignav a {
  font-family: var(--sans);
  font-weight: 500;
  font-size: clamp(1.7rem, 2.6vw, 2.2rem);
  letter-spacing: -0.02em;
  color: var(--ink);
  display: inline-flex;
  align-items: baseline;
  gap: 0.45em;
}
.bignav a .arr {
  color: var(--accent);
  font-weight: 400;
  font-size: 0.8em;
  transition: transform 0.18s ease;
}
.bignav a:hover { text-decoration: none; color: var(--accent); }
.bignav a:hover .arr { transform: translateX(6px); }

.homefoot {
  margin-top: auto;
  padding-top: 56px;
  font-family: var(--sans);
  font-size: 0.95rem;
  color: var(--muted);
}
.homefoot p { margin: 0 0 8px; }
.homefoot .role { color: var(--ink-2); font-weight: 500; }
.homefoot .topics { color: var(--accent); }
.homefoot .contact { margin-top: 22px; }
.homefoot .links { margin-top: 14px; display: flex; flex-wrap: wrap; gap: 6px 22px; }
.homefoot .links a { color: var(--ink-2); }
.homefoot .links a:hover { color: var(--accent); }

/* Draw-on animation for the network lines */
.draw { stroke-dasharray: 600; stroke-dashoffset: 600; animation: draw 1.8s ease-out forwards; }
.draw.d2 { animation-delay: 0.25s; }
.draw.d3 { animation-delay: 0.5s; }
.fade { opacity: 0; animation: fade 0.8s ease-out forwards; animation-delay: 1.2s; }
.fade.f2 { animation-delay: 1.6s; }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes fade { to { opacity: 1; } }
@media (prefers-reduced-motion: reduce) {
  .draw, .fade { animation: none; stroke-dashoffset: 0; opacity: 1; }
}

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

.topbar {
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
}
.topbar__inner {
  max-width: 1040px;
  margin: 0 auto;
  padding: 22px 24px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px 32px;
  flex-wrap: wrap;
  font-family: var(--sans);
}
.topbar .home {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.topbar nav { display: flex; flex-wrap: wrap; gap: 6px 26px; }
.topbar nav a { color: var(--ink-2); font-size: 1rem; }
.topbar nav a[aria-current="page"] { color: var(--accent); font-weight: 600; }

.page {
  max-width: 1040px;
  margin: 0 auto;
  padding: 64px 24px 96px;
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 0 56px;
}
.page__head { grid-column: 1 / -1; margin-bottom: 40px; }
.page__head h1 {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(2.4rem, 5vw, 3.4rem);
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin: 0 0 16px;
}
.page__head p { color: var(--ink-2); max-width: 40em; margin: 0; font-size: 1.1rem; }

.toc {
  position: sticky;
  top: 32px;
  align-self: start;
  font-family: var(--sans);
  font-size: 0.95rem;
  border-top: 2px solid var(--accent);
  padding-top: 14px;
}
.toc a { display: block; color: var(--muted); padding: 3px 0; }
.toc a:hover { color: var(--accent); text-decoration: none; }

.content section { margin-bottom: 56px; scroll-margin-top: 24px; }
.content h2 {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 1.45rem;
  letter-spacing: -0.015em;
  margin: 0 0 22px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--rule);
}
.content h3 {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--muted);
  margin: 28px 0 12px;
}
.content p { margin: 0 0 1em; }

/* Publication / talk entries */
.entry { margin: 0 0 30px; }
.entry__title {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 1.12rem;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0 0 4px;
}
.entry__title a { color: var(--ink); }
.entry__title a:hover { color: var(--accent); }
.entry__meta { color: var(--ink-2); font-size: 1rem; margin: 0; }
.entry__meta em { color: var(--ink); }
.entry__meta b { font-weight: 600; color: var(--ink); }
.entry__links {
  margin-top: 6px;
  font-family: var(--sans);
  font-size: 0.9rem;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 18px;
  align-items: baseline;
}

details.abstract summary {
  cursor: pointer;
  color: var(--accent);
  list-style: none;
}
details.abstract summary::-webkit-details-marker { display: none; }
details.abstract summary::after { content: " +"; }
details.abstract[open] summary::after { content: " –"; }
details.abstract[open] {
  flex-basis: 100%;
}
.abstract__body {
  margin-top: 12px;
  padding: 16px 20px;
  background: var(--panel);
  border-left: 2px solid var(--accent);
  font-family: var(--serif);
  font-size: 0.98rem;
  color: var(--ink-2);
}
.abstract__body figure { margin: 16px 0 4px; }
.abstract__body figcaption { font-size: 0.85rem; color: var(--muted); margin-top: 8px; }

a.vid {
  font-family: var(--sans);
  font-size: 0.85rem;
  white-space: nowrap;
  margin-left: 6px;
}
a.vid::before { content: "\25B6\FE0E"; font-size: 0.7em; margin-right: 5px; vertical-align: 1px; }

.plain { list-style: none; padding: 0; margin: 0; }
.plain li { margin: 0 0 14px; }

.dated { display: grid; grid-template-columns: 110px minmax(0, 1fr); gap: 4px 20px; margin: 0 0 16px; }
.dated .when { font-family: var(--sans); color: var(--muted); font-size: 0.95rem; padding-top: 2px; }

.figure { margin: 8px 0 28px; }
.figure figcaption { font-size: 0.9rem; color: var(--muted); margin-top: 10px; }

.portrait {
  width: 180px;
  border-radius: 4px;
  margin: 0 0 20px;
}

.footer {
  border-top: 1px solid var(--rule);
  font-family: var(--sans);
  font-size: 0.9rem;
  color: var(--muted);
}
.footer__inner {
  max-width: 1040px;
  margin: 0 auto;
  padding: 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
}
.footer a { color: var(--muted); }
.footer a:hover { color: var(--accent); }

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

@media (max-width: 900px) {
  .split { grid-template-columns: 1fr; min-height: 0; }
  .split__art { padding: 28px 16px; }
  .split__art svg { max-width: 260px; position: static; }
  .split__text { padding: 48px 16px 40px; }
  .rule { margin: 26px 0 24px; }
  .homefoot { padding-top: 48px; }

  .page { grid-template-columns: 1fr; padding: 40px 16px 72px; }
  .toc { position: static; display: flex; flex-wrap: wrap; gap: 4px 18px; margin-bottom: 36px; }
  .toc a { display: inline; }
  .toc .portrait { flex-basis: 100%; max-width: 140px; }
  .topbar__inner { padding: 18px 16px; }
  .dated { grid-template-columns: 1fr; gap: 0; }
}