/* ================================================================
   Louise Bernard — personal site
   Aesthetic: refined editorial. Warm cream paper, classical serif,
   deep navy accents. Inspired by Hauser's tonality but distinct.
   ================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;1,400&family=Inter:wght@400;500;600&display=swap');

:root {
  /* Warm paper palette */
  --paper:        #f5efe4;
  --paper-soft:   #ede4d3;
  --ink:          #1a1f2e;
  --ink-soft:     #3a3f4e;
  --ink-muted:    #6b6e78;
  --rule:         #c9bfac;
  --accent:       #1f3a5f;       /* deep navy */
  --accent-warm:  #8a3d2a;       /* terracotta — used sparingly */

  /* Type */
  --serif: "Cormorant Garamond", "EB Garamond", Georgia, serif;
  --sans:  "Inter", -apple-system, BlinkMacSystemFont, sans-serif;

  /* Layout */
  --measure: 38rem;
  --gutter: 2.5rem;
}

/* -------- Reset --------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body, h1, h2, h3, h4, p, ul, ol, figure, blockquote { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }

/* -------- Page --------- */
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.6;
  font-feature-settings: "kern" 1, "liga" 1, "onum" 1;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Subtle paper grain — pure CSS, no images */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(138, 61, 42, 0.025) 0, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(31, 58, 95, 0.02) 0, transparent 50%);
}

main, header, footer { position: relative; z-index: 1; }

/* -------- Top nav --------- */
.site-header {
  padding: 2.5rem var(--gutter) 0;
  max-width: 64rem;
  margin: 0 auto;
}

.nav-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 1.5rem;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 1.25rem;
}

.brand {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.35rem;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.brand em {
  font-style: italic;
  color: var(--ink-muted);
  font-weight: 400;
  font-size: 0.95rem;
}

nav ul {
  display: flex;
  gap: 2rem;
  font-family: var(--sans);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 500;
}

nav a {
  color: var(--ink-soft);
  padding-bottom: 0.25rem;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}

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

/* -------- Main column --------- */
main {
  max-width: 64rem;
  margin: 0 auto;
  padding: 4rem var(--gutter) 6rem;
}

/* -------- Home hero --------- */
.hero {
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: 3.5rem;
  align-items: start;
  margin-bottom: 4rem;
}

.hero h1 {
  font-family: var(--serif);
  font-size: clamp(2.25rem, 4.5vw, 3.4rem);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin-bottom: 0.5rem;
}

.hero .role {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.35rem;
  color: var(--ink-soft);
  margin-bottom: 2rem;
}

.lede {
  font-size: 1.25rem;
  line-height: 1.55;
  color: var(--ink);
  max-width: 36rem;
  margin-bottom: 1.75rem;
}

.lede strong { font-weight: 600; color: var(--ink); }

.portrait {
  position: relative;
  width: 220px;
  aspect-ratio: 4 / 5;
  background: var(--paper-soft);
  border: 1px solid var(--rule);
  overflow: hidden;
}

.portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.15) contrast(1.02);
}

.portrait-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  font-family: var(--serif);
  font-style: italic;
  color: var(--ink-muted);
  font-size: 0.9rem;
  text-align: center;
  padding: 1rem;
}

/* -------- Body prose --------- */
.prose p {
  max-width: var(--measure);
  margin-bottom: 1.4rem;
  color: var(--ink);
}

.prose p strong { font-weight: 600; }

.prose a {
  color: var(--accent);
  border-bottom: 1px solid rgba(31, 58, 95, 0.3);
  transition: border-color 0.15s ease, background 0.15s ease;
}

.prose a:hover {
  border-bottom-color: var(--accent);
  background: rgba(31, 58, 95, 0.06);
}

/* -------- Quick links row (home) --------- */
.quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2.25rem;
  font-family: var(--sans);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  margin: 2rem 0 3rem;
  padding: 1.25rem 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.quick-links a {
  color: var(--ink-soft);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.quick-links a:hover { color: var(--accent); }

.quick-links svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.5;
}

/* -------- Section headers --------- */
.section-eyebrow {
  font-family: var(--sans);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--ink-muted);
  font-weight: 500;
  margin-bottom: 0.75rem;
}

.page-title {
  font-family: var(--serif);
  font-size: clamp(2rem, 3.8vw, 2.85rem);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.1;
  margin-bottom: 0.5rem;
}

.page-subtitle {
  font-style: italic;
  font-size: 1.2rem;
  color: var(--ink-soft);
  margin-bottom: 3rem;
  max-width: var(--measure);
}

/* -------- Research page --------- */
.papers {
  border-top: 1px solid var(--rule);
}

.paper {
  display: grid;
  grid-template-columns: 5rem 1fr;
  gap: 2rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--rule);
}

.paper-year {
  font-family: var(--sans);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--ink-muted);
  letter-spacing: 0.04em;
  padding-top: 0.5rem;
}

.paper-title {
  font-family: var(--serif);
  font-size: 1.4rem;
  font-weight: 500;
  line-height: 1.3;
  margin-bottom: 0.5rem;
  color: var(--ink);
}

.paper-authors {
  font-style: italic;
  color: var(--ink-soft);
  margin-bottom: 0.75rem;
  font-size: 1.05rem;
}

.paper-venue {
  font-family: var(--sans);
  font-size: 0.85rem;
  color: var(--ink-muted);
  margin-bottom: 1rem;
  letter-spacing: 0.02em;
}

.paper-venue .status {
  display: inline-block;
  background: var(--paper-soft);
  border: 1px solid var(--rule);
  padding: 0.15rem 0.6rem;
  margin-left: 0.5rem;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.paper-summary {
  color: var(--ink);
  margin-bottom: 1rem;
  max-width: var(--measure);
}

.paper-links {
  display: flex;
  gap: 1.5rem;
  font-family: var(--sans);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.04em;
}

.paper-links a {
  color: var(--accent);
  border-bottom: 1px solid rgba(31, 58, 95, 0.3);
  padding-bottom: 1px;
}

.paper-links a:hover { border-bottom-color: var(--accent); }

/* -------- CV page --------- */
.cv-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--rule);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.7rem 1.25rem;
  font-family: var(--sans);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--accent);
  color: var(--paper);
  border: 1px solid var(--accent);
  transition: background 0.2s ease, color 0.2s ease;
}

.btn:hover { background: var(--ink); border-color: var(--ink); }

.btn.secondary {
  background: transparent;
  color: var(--accent);
}

.btn.secondary:hover { background: var(--accent); color: var(--paper); }

.cv-section {
  margin-bottom: 3rem;
}

.cv-section h2 {
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--ink-muted);
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--rule);
}

.cv-entry {
  display: grid;
  grid-template-columns: 9rem 1fr;
  gap: 2rem;
  margin-bottom: 1.75rem;
}

.cv-dates {
  font-family: var(--sans);
  font-size: 0.85rem;
  color: var(--ink-muted);
  padding-top: 0.2rem;
  letter-spacing: 0.02em;
}

.cv-role {
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 500;
  line-height: 1.3;
  margin-bottom: 0.25rem;
}

.cv-org {
  font-style: italic;
  color: var(--ink-soft);
  margin-bottom: 0.75rem;
}

.cv-org a {
  color: var(--accent);
  border-bottom: 1px solid rgba(31, 58, 95, 0.3);
  transition: border-color 0.15s ease, background 0.15s ease;
}

.cv-org a:hover {
  border-bottom-color: var(--accent);
  background: rgba(31, 58, 95, 0.06);
}

.cv-detail {
  color: var(--ink);
  max-width: var(--measure);
}

.cv-detail ul {
  list-style: none;
  padding-left: 0;
}

.cv-detail li {
  padding-left: 1.25rem;
  position: relative;
  margin-bottom: 0.5rem;
  line-height: 1.5;
}

.cv-detail li::before {
  content: "·";
  position: absolute;
  left: 0.3rem;
  color: var(--accent);
  font-weight: 700;
}

/* -------- Contact page --------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  margin-top: 2rem;
}

.contact-block h3 {
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--ink-muted);
  margin-bottom: 1rem;
}

.contact-block p { margin-bottom: 0.5rem; }

.contact-block a { color: var(--accent); border-bottom: 1px solid rgba(31, 58, 95, 0.3); }

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-form label {
  font-family: var(--sans);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-muted);
  margin-bottom: 0.35rem;
  display: block;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.7rem 0.85rem;
  background: var(--paper-soft);
  border: 1px solid var(--rule);
  font-family: var(--serif);
  font-size: 1rem;
  color: var(--ink);
  border-radius: 0;
  transition: border-color 0.15s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--paper);
}

.contact-form textarea { min-height: 8rem; resize: vertical; font-family: var(--serif); }

/* -------- Footer --------- */
.site-footer {
  max-width: 64rem;
  margin: 0 auto;
  padding: 2.5rem var(--gutter) 3rem;
  border-top: 1px solid var(--rule);
  font-family: var(--sans);
  font-size: 0.8rem;
  color: var(--ink-muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  letter-spacing: 0.03em;
}

/* -------- Responsive --------- */
@media (max-width: 760px) {
  :root { --gutter: 1.5rem; }
  body { font-size: 17px; }

  .nav-row { flex-direction: column; align-items: flex-start; gap: 1rem; }
  nav ul { gap: 1.25rem; flex-wrap: wrap; }

  .hero {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .portrait {
    width: 160px;
    margin-bottom: 1rem;
  }

  .paper { grid-template-columns: 1fr; gap: 0.5rem; }
  .paper-year { padding-top: 0; }

  .cv-entry { grid-template-columns: 1fr; gap: 0.5rem; }
  .cv-dates { padding-top: 0; }

  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
}

/* -------- Subtle entrance animation --------- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero, .page-title, .page-subtitle, .papers, .cv-actions, .cv-section, .contact-grid, .quick-links, .lede {
  animation: fadeUp 0.7s ease both;
}

.page-subtitle { animation-delay: 0.08s; }
.papers, .cv-section, .contact-grid, .quick-links { animation-delay: 0.15s; }