/* ═══════════════════════════════════════════════════════
   MOTHERLABS.AI — Research Portfolio

   Built from PJ.05 world model:
   "A studio you walk into after hours. Lights are on.
    Work is on the walls. Nobody's selling you anything."

   Fonts: PP Monument Extended (headlines) + JetBrains Mono (body)
   Palette: #0d0d0c / #e8e4df / #c4a882
   Aesthetic: minimalist brutalism, 80% negative space
   ═══════════════════════════════════════════════════════ */

/* ── Fonts ── */

@font-face {
  font-family: "PP Monument Extended";
  src: url("/fonts/PPMonumentExtended-BoldItalic.woff2") format("woff2");
  font-weight: 700;
  font-style: italic;
  font-display: swap;
}

@font-face {
  font-family: "PP Monument Extended";
  src: url("/fonts/PPMonumentExtended-BlackItalic.woff2") format("woff2");
  font-weight: 900;
  font-style: italic;
  font-display: swap;
}

@font-face {
  font-family: "PP Monument Extended";
  src: url("/fonts/PPMonumentExtended-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@import url("https://fonts.googleapis.com/css2?family=JetBrains+Mono:ital,wght@0,300;0,400;0,500;1,300;1,400&display=swap");

/* ── Tokens ── */

:root {
  --canvas: #0d0d0c;
  --fg: #e8e4df;
  --gold: #c4a882;
  --dim: #5a5650;
  --border: #1e1c1a;
  --surface: #121110;

  --mono: "JetBrains Mono", monospace;
  --display: "PP Monument Extended", "JetBrains Mono", monospace;

  --space-xs: 0.5rem;
  --space-s: 1rem;
  --space-m: 2rem;
  --space-l: 4rem;
  --space-xl: 8rem;
  --space-2xl: 12rem;

  --max-w: 1080px;
  --gutter: clamp(1.25rem, 5vw, 4rem);
}

/* ── Reset ── */

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
::selection {
  background: var(--gold);
  color: var(--canvas);
}
html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  background: var(--canvas);
  color: var(--fg);
  font-family: var(--mono);
  font-weight: 300;
  font-size: 0.9rem;
  line-height: 1.75;
  letter-spacing: 0.005em;
}

/* ── Layout ── */

.page {
  padding: 0 var(--gutter);
}
.container {
  max-width: var(--max-w);
  margin: 0 auto;
}

section {
  padding: var(--space-2xl) 0 var(--space-xl);
}

/* ── Typography ── */

h1,
h2,
h3 {
  font-family: var(--display);
  letter-spacing: -0.03em;
  line-height: 1.05;
}

h1 {
  font-weight: 700;
  font-style: italic;
  font-size: clamp(2.8rem, 9vw, 6rem);
  color: var(--fg);
}

h2 {
  font-weight: 400;
  font-style: normal;
  font-size: 0.7rem;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-bottom: var(--space-l);
}

h3 {
  font-family: var(--mono);
  font-weight: 400;
  font-size: 0.95rem;
  color: var(--fg);
  margin-bottom: var(--space-xs);
}

p {
  max-width: 58ch;
  color: var(--fg);
  opacity: 0.8;
  margin-bottom: var(--space-s);
}

a {
  color: var(--gold);
  text-decoration: none;
  transition: opacity 0.15s;
}

a:hover {
  opacity: 0.7;
}

.gold {
  color: var(--gold);
}
.dim {
  color: var(--dim);
  font-size: 0.75rem;
}

/* ── Nav ── */

nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-s) var(--gutter);
  background: rgba(13, 13, 12, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-mark {
  font-family: var(--display);
  font-weight: 700;
  font-style: italic;
  font-size: 0.85rem;
  color: var(--fg);
}

.nav-links {
  display: flex;
  gap: var(--space-m);
  list-style: none;
}

.nav-links a {
  font-size: 0.7rem;
  color: var(--dim);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.nav-links a:hover {
  color: var(--gold);
  opacity: 1;
}

/* ── Hero ── */

.hero {
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding-bottom: var(--space-xl);
}

.hero-label {
  font-size: 0.65rem;
  color: var(--dim);
  text-transform: uppercase;
  letter-spacing: 0.25em;
  margin-bottom: var(--space-m);
}

.hero h1 {
  margin-bottom: var(--space-l);
}

.hero-body {
  font-size: 1rem;
  font-weight: 300;
  max-width: 50ch;
  line-height: 1.85;
  opacity: 0.75;
}

/* ── Evidence Strip ── */

.evidence {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.evidence-item {
  padding: var(--space-l) 0;
  border-right: 1px solid var(--border);
}

.evidence-item:last-child {
  border-right: none;
}

.evidence-value {
  font-family: var(--display);
  font-weight: 700;
  font-style: italic;
  font-size: clamp(1.8rem, 4vw, 3rem);
  color: var(--fg);
  line-height: 1;
}

.evidence-label {
  font-size: 0.65rem;
  color: var(--dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: var(--space-xs);
  line-height: 1.5;
}

/* ── Thesis ── */

.thesis-formula {
  background: var(--surface);
  border-left: 2px solid var(--gold);
  padding: var(--space-m) var(--space-m);
  font-family: var(--mono);
  font-size: 0.8rem;
  line-height: 2;
  color: var(--dim);
  overflow-x: auto;
  white-space: pre;
  margin: var(--space-l) 0;
}

.thesis-formula .hl {
  color: var(--gold);
}
.thesis-formula .fg {
  color: var(--fg);
}

/* ── Cards Grid ── */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1px;
  background: var(--border);
  margin: var(--space-l) 0;
}

.card {
  background: var(--canvas);
  padding: var(--space-m);
}

.card-label {
  font-size: 0.6rem;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-xs);
}

.card h3 {
  margin-bottom: var(--space-xs);
}

.card p {
  font-size: 0.8rem;
  opacity: 0.55;
  margin-bottom: 0;
}

.card-meta {
  font-size: 0.7rem;
  color: var(--dim);
  margin-top: var(--space-s);
}

/* ── Timeline ── */

.timeline {
  position: relative;
  padding-left: var(--space-l);
  margin: var(--space-l) 0;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--border);
}

.tl-entry {
  position: relative;
  padding-bottom: var(--space-l);
}

.tl-entry::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--space-l) - 3px);
  top: 0.4rem;
  width: 7px;
  height: 7px;
  background: var(--gold);
}

.tl-date {
  font-size: 0.7rem;
  color: var(--gold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.tl-text {
  font-size: 0.85rem;
  opacity: 0.75;
  margin-top: 0.3rem;
  max-width: 55ch;
}

/* ── Bio ── */

.bio-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.bio-facts {
  font-size: 0.8rem;
  line-height: 1.9;
}

.bio-facts dt {
  color: var(--dim);
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.bio-facts dd {
  color: var(--fg);
  margin-bottom: var(--space-s);
}

.bio-text p {
  font-size: 0.9rem;
  line-height: 1.85;
  opacity: 0.85;
}

.bio-text p:first-child {
  font-size: 1rem;
  opacity: 1;
}

.bio-prev {
  font-size: 0.75rem;
  color: var(--dim);
  margin-top: var(--space-l);
  padding-top: var(--space-m);
  border-top: 1px solid var(--border);
}

/* ── Footer ── */

footer {
  padding: var(--space-xl) 0 var(--space-l);
  border-top: 1px solid var(--border);
}

.footer-links {
  display: flex;
  gap: var(--space-m);
  list-style: none;
  margin-bottom: var(--space-s);
}

.footer-links a {
  font-size: 0.7rem;
  color: var(--dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.footer-copy {
  font-size: 0.65rem;
  color: var(--dim);
  opacity: 0.5;
}

/* ── Responsive ── */

@media (max-width: 768px) {
  .evidence {
    grid-template-columns: repeat(2, 1fr);
  }
  .evidence-item:nth-child(2) {
    border-right: none;
  }
  .bio-layout {
    grid-template-columns: 1fr;
    gap: var(--space-l);
  }
  .nav-links {
    gap: var(--space-s);
  }
}

@media (max-width: 480px) {
  .evidence {
    grid-template-columns: 1fr;
  }
  .evidence-item {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .evidence-item:last-child {
    border-bottom: none;
  }
  h1 {
    font-size: 2.2rem;
  }
}