/* Logan Burns e-portfolio — datasheet / lab-notebook aesthetic */

:root {
  --paper: #f7f4ec;
  --paper-raised: #fffdf6;
  --ink: #1b1d19;
  --ink-soft: #52564e;
  --copper: #a8642f;
  --copper-bright: #c47a3c;
  --green: #17492e;
  --line: #d9d2c2;
  --line-strong: #b9b09a;
  --grid: rgba(23, 73, 46, 0.045);
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --serif: "Fraunces", Georgia, serif;
  --sans: "IBM Plex Sans", ui-sans-serif, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 28px 28px;
}

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

a { color: var(--copper); text-decoration: none; }
a:hover { color: var(--green); }

.wrap {
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

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

.site-header {
  border-bottom: 2px solid var(--ink);
  background: var(--paper-raised);
}

.site-header .wrap {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem 2rem;
  padding-top: 1.1rem;
  padding-bottom: 1.1rem;
}

.brand {
  font-family: var(--mono);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.18em;
  color: var(--ink);
}

.brand:hover { color: var(--copper); }

.brand .tick { color: var(--copper); }

nav.site-nav {
  display: flex;
  gap: 1.4rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
}

nav.site-nav a {
  color: var(--ink-soft);
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
}

nav.site-nav a:hover { color: var(--copper); border-bottom-color: var(--copper); }
nav.site-nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--green); }

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

.hero {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  gap: 3rem;
  align-items: center;
  padding: 4.5rem 0 3.5rem;
}

.hero-kicker {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  white-space: nowrap;
  color: var(--green);
  margin-bottom: 1rem;
}

@media (max-width: 760px) {
  .hero-kicker { white-space: normal; }
}

.hero h1 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(2.1rem, 4.5vw, 3.2rem);
  line-height: 1.12;
  text-wrap: balance;
  margin-bottom: 1.2rem;
}

.hero h1 em {
  font-style: italic;
  color: var(--copper);
}

.hero p.lede {
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: 34em;
  margin-bottom: 1.8rem;
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-family: var(--mono);
  font-size: 0.82rem;
}

.hero-links a {
  border: 1px solid var(--line-strong);
  background: var(--paper-raised);
  padding: 0.5rem 0.95rem;
  color: var(--ink);
  transition: border-color 120ms ease, transform 120ms ease;
}

.hero-links a:hover {
  border-color: var(--copper);
  color: var(--copper);
  transform: translateY(-2px);
}

.portrait {
  position: relative;
  justify-self: end;
  max-width: 320px;
}

.portrait img {
  display: block;
  width: 100%;
  border: 1px solid var(--line-strong);
}

.portrait::after {
  content: "";
  position: absolute;
  inset: 14px -14px -14px 14px;
  border: 2px solid var(--copper);
  z-index: -1;
}

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

section.block { padding: 1.6rem 0; }

.sec-label {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  color: var(--copper);
  margin-bottom: 0.6rem;
}

.sec-label::after {
  content: "";
  flex: 1;
  border-top: 1px solid var(--line-strong);
  transform: translateY(-0.2em);
}

h2.sec-title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.9rem;
  margin-bottom: 1.4rem;
}

/* ---------- cards ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.2rem;
}

.card {
  position: relative;
  background: var(--paper-raised);
  border: 1px solid var(--line-strong);
  padding: 1.4rem 1.5rem 1.5rem;
}

.card::before, .card::after {
  content: "";
  position: absolute;
  width: 7px;
  height: 7px;
  border: 1.5px solid var(--copper);
  border-radius: 50%;
}

.card::before { top: 7px; left: 7px; }
.card::after { bottom: 7px; right: 7px; }

.card .meta {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--green);
  margin-bottom: 0.45rem;
}

.card h3 {
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.55rem;
}

.card p { font-size: 0.95rem; color: var(--ink-soft); }

.card img {
  width: 100%;
  border: 1px solid var(--line);
  margin-bottom: 0.9rem;
}

.card a.more {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
}

/* ---------- research entries ---------- */

.entry {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 1.6rem;
  padding: 1.6rem 0;
  border-top: 1px solid var(--line);
}

.entry:last-of-type { border-bottom: 1px solid var(--line); }

.entry .when {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-soft);
  letter-spacing: 0.06em;
  padding-top: 0.35rem;
}

.entry h3 {
  font-family: var(--serif);
  font-size: 1.3rem;
  font-weight: 600;
}

.entry .role {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--green);
  letter-spacing: 0.08em;
  margin: 0.25rem 0 0.7rem;
}

.entry ul { margin-left: 1.1rem; }
.entry li { margin-bottom: 0.4rem; color: var(--ink-soft); font-size: 0.98rem; }
.entry li strong { color: var(--ink); }

.pubcite {
  background: var(--paper-raised);
  border-left: 3px solid var(--green);
  padding: 1.1rem 1.3rem;
  font-size: 0.98rem;
}

/* ---------- coursework table ---------- */

.termgrid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.2rem;
}

.term {
  background: var(--paper-raised);
  border: 1px solid var(--line-strong);
  border-top: 3px solid var(--green);
  padding: 1.1rem 1.2rem;
}

.term h3 {
  font-family: var(--mono);
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  color: var(--ink);
  margin-bottom: 0.7rem;
}

.term table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.term td { padding: 0.22rem 0; color: var(--ink-soft); }
.term td.grade {
  font-family: var(--mono);
  text-align: right;
  color: var(--copper);
  font-size: 0.8rem;
}

/* ---------- journal ---------- */

.post-list { border-top: 1px solid var(--line); }

.post-row {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 1.5rem;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}

.post-row .when { font-family: var(--mono); font-size: 0.78rem; color: var(--ink-soft); }
.post-row a.title {
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--ink);
}
.post-row a.title:hover { color: var(--copper); }
.post-row p { grid-column: 2; font-size: 0.92rem; color: var(--ink-soft); }

article.post { max-width: 720px; margin: 0 auto; padding: 3rem 0; }

article.post .when {
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  color: var(--green);
  margin-bottom: 0.6rem;
}

article.post h1 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 2.1rem;
  line-height: 1.15;
  margin-bottom: 1.6rem;
}

article.post p { margin-bottom: 1.05rem; }

article.post pre.calc {
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.55;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-left: 3px solid var(--copper);
  padding: 1rem 1.2rem;
  overflow-x: auto;
  margin-bottom: 1.05rem;
  white-space: pre-wrap;
}

article.post figure { margin: 1.4rem 0; }
article.post figure img {
  width: 100%;
  border: 1px solid var(--line-strong);
}
article.post figcaption {
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--ink-soft);
  letter-spacing: 0.06em;
  margin-top: 0.45rem;
}

.post-nav {
  max-width: 720px;
  margin: 0 auto 3rem;
  font-family: var(--mono);
  font-size: 0.8rem;
}

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

.site-footer {
  margin-top: 3rem;
  border-top: 2px solid var(--ink);
  background: var(--paper-raised);
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-soft);
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem 2.5rem;
  justify-content: space-between;
  padding-top: 1.3rem;
  padding-bottom: 1.5rem;
}

.site-footer a { color: var(--ink-soft); }
.site-footer a:hover { color: var(--copper); }

/* ---------- reveal animation ---------- */

@media (prefers-reduced-motion: no-preference) {
  .reveal { animation: rise 500ms ease both; }
  .reveal:nth-child(2) { animation-delay: 80ms; }
  .reveal:nth-child(3) { animation-delay: 160ms; }
  .reveal:nth-child(4) { animation-delay: 240ms; }
  @keyframes rise {
    from { opacity: 0; transform: translateY(14px); }
    to { opacity: 1; transform: none; }
  }
}

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

@media (max-width: 760px) {
  .hero { grid-template-columns: 1fr; padding-top: 2.5rem; }
  .portrait { justify-self: start; max-width: 260px; }
  .entry { grid-template-columns: 1fr; gap: 0.4rem; }
  .post-row { grid-template-columns: 1fr; gap: 0.2rem; }
  .post-row p { grid-column: 1; }
}