/* =============================================================
   Personal Academic Site — Editorial / Observatory aesthetic
   Shared stylesheet for all pages
   ============================================================= */

/* ---------- Design tokens ---------- */
:root {
  /* Color — warm parchment with prussian blue + amber accents */
  --bg:          #0e1117;
  --bg-soft:     #141925;
  --bg-elevated: #1a2130;

  --ink:         #e6e9ef;
  --ink-soft:    #aab1bf;
  --ink-faint:   #7f8796;

  --rule:        #2a3142;
  --rule-soft:   #202635;

  --accent:      #9ccddc;
  --accent-deep: #5591a9;
  --accent-warm: #9aeadd;
  --accent_mag:  #155e89;

  /* Typography */
  --serif-display: 'Fraunces', 'Iowan Old Style', 'Palatino Linotype', Georgia, serif;
  --serif-body:    'Newsreader',  'Iowan Old Style', 'Palatino Linotype', Georgia, serif;
  --sans:          'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono:          'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  /* Sizing */
  --max-wide:  1180px;
  --max:       960px;
  --max-prose: 680px;

  /* Motion */
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- Reset + base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--serif-body);
  font-size: 17px;
  line-height: 1.65;
  font-feature-settings: "kern", "liga", "onum";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Subtle paper grain — barely perceptible */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.4;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml;utf8,<svg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.1  0 0 0 0 0.09  0 0 0 0 0.08  0 0 0 0.05 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

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

a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: var(--rule-soft);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: text-decoration-color 0.2s var(--ease), color 0.2s var(--ease);
}

a:hover {
  color: var(--accent-warm);
  text-decoration-color: var(--accent);
}

/* ---------- Top navigation ---------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(245, 239, 225, 0.92);
  background-color: var(--bg-soft);
  border-bottom: 1px solid var(--rule-soft);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--rule-soft);
}

.site-nav-inner {
  max-width: var(--max-wide);
  margin: 0 auto;
  padding: 1.1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand {
  font-family: var(--serif-display);
  font-weight: 500;
  font-size: 1.05rem;
  letter-spacing: 0.01em;
  text-decoration: none;
  color: var(--ink);
  font-variation-settings: "SOFT" 50, "opsz" 14;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}

.brand-mark {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

.brand-mark circle { fill: var(--accent-warm); }
.brand-mark ellipse { fill: none; stroke: var(--ink); stroke-width: 1; }

.nav-links {
  display: flex;
  gap: 2rem;
  font-family: var(--sans);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-weight: 500;
}

.nav-links a {
  color: var(--ink-soft);
  text-decoration: none;
  position: relative;
  padding: 0.3rem 0;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; right: 0;
  bottom: -2px;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}

.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after { transform: scaleX(1); }

.nav-links a[aria-current="page"] { color: var(--ink); }

/* ---------- Page container ---------- */
.page {
  max-width: var(--max);
  margin: 0 auto;
  padding: 5rem 2rem 6rem;
  position: relative;
  z-index: 2;
}

.page-wide {
  max-width: var(--max-wide);
  margin: 0 auto;
  padding: 5rem 2rem 6rem;
  position: relative;
  z-index: 2;
}

/* ---------- Editorial typography ---------- */
.eyebrow {
  font-family: var(--sans);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--ink-soft);
  font-weight: 500;
  margin: 0 0 1.2rem 0;
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--ink-soft);
  display: inline-block;
}

h1, h2, h3, h4 {
  font-family: var(--serif-display);
  font-weight: 500;
  letter-spacing: -0.015em;
  color: var(--ink);
  font-variation-settings: "SOFT" 30, "opsz" 144;
}

.display {
  font-family: var(--serif-display);
  font-weight: 400;
  font-size: clamp(3.2rem, 9vw, 6.5rem);
  line-height: 0.98;
  letter-spacing: -0.025em;
  margin: 0;
  font-variation-settings: "SOFT" 60, "opsz" 144;
}

.display em {
  font-style: italic;
  font-weight: 400;
  color: var(--accent-warm);
  font-variation-settings: "SOFT" 100, "opsz" 144;
}

.page-title {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  line-height: 1.05;
  margin: 0 0 1rem 0;
  font-variation-settings: "SOFT" 50, "opsz" 144;
}

h2 {
  font-size: 1.85rem;
  line-height: 1.15;
  margin: 0 0 1.2rem 0;
}

h3 {
  font-size: 1.3rem;
  line-height: 1.25;
  margin: 0 0 0.6rem 0;
  font-variation-settings: "SOFT" 30, "opsz" 24;
}

p { margin: 0 0 1.1rem 0; }

.lead {
  font-size: 1.22rem;
  line-height: 1.55;
  color: var(--ink-soft);
  margin: 0 0 2rem 0;
  max-width: 38ch;
}

.prose { max-width: var(--max-prose); }
.prose p + p { margin-top: 1rem; }

/* Decorative section rule */
.rule {
  border: 0;
  height: 1px;
  background: var(--rule);
  margin: 3rem 0 2.2rem;
  position: relative;
  max-width: 4rem;
}

.rule-full {
  border: 0;
  height: 1px;
  background: var(--rule-soft);
  margin: 4rem 0;
}

/* ---------- HOME — hero ---------- */
.hero {
  display: flex;
  justify-content: center;
  padding: 4rem 2rem;
}

.hero-box {
  position: relative;
  max-width: 1100px;
  width: 100%;

  padding: 3rem;
  border-radius: 16px;
  overflow: hidden;

  /* JWST image */
  background-image: url("images/carinawebb-compressed.jpg");
  background-size: cover;
  background-position: center;
  backdrop-filter: blur(6px);

  /* subtle border */
  border: 1px solid var(--rule-soft);
}

.hero-box::before {
  content: "";
  position: absolute;
  inset: 0;

  background: linear-gradient(
    to right,
    rgba(15, 19, 32, 0.85) 0%,
    rgba(15, 19, 32, 0.6) 50%,
    rgba(15, 19, 32, 0.3) 100%
  );

  z-index: 0;
}

.hero-box::after {
  content: "";
  position: absolute;
  inset: 0;

  box-shadow: inset 0 0 80px rgba(0,0,0,0.4);
  pointer-events: none;
}

.hero-image {
  width: 100%;
  max-width: 420px;
  height: auto;
  border-radius: 16px;
  object-fit: cover;
  box-shadow: 0 20px 50px rgba(0,0,0,0.15);
}

.hero-text { 
  animation: fadeUp 0.9s var(--ease) both; 
  position: relative;
  z-index: 1;
  max-width: 600px;
}

.hero-meta {
  margin-top: 2.5rem;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.4rem 1.5rem;
  font-family: var(--sans);
  font-size: 0.88rem;
  max-width: 32rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
}

.hero-meta dt {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.72rem;
  color: var(--ink-soft);
  padding-top: 0.25rem;
  font-weight: 500;
}

.hero-meta dd {
  margin: 0;
  color: var(--ink);
}

.hero-meta dd a { color: var(--accent); text-decoration-color: var(--accent); }

/* Orbital decoration */
.orbit-art {
  width: 100%;
  max-width: 380px;
  aspect-ratio: 1;
  justify-self: end;
  animation: fadeIn 1.4s var(--ease) 0.3s both;
}

.orbit-art .star { fill: var(--accent-warm); }
.orbit-art .orbit { fill: none; stroke: var(--ink); stroke-width: 0.4; opacity: 0.55; }
.orbit-art .planet { fill: var(--ink); }
.orbit-art .planet-accent { fill: var(--accent); }
.orbit-art .ring-rotate { transform-origin: 200px 200px; animation: spin 80s linear infinite; }
.orbit-art .ring-rotate-r { transform-origin: 200px 200px; animation: spin 130s linear infinite reverse; }
.orbit-art .ring-rotate-s { transform-origin: 200px 200px; animation: spin 200s linear infinite; }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ISM decoration */
.ism-art {
  width: 100%;
  max-width: 420px;
  height: auto;
}

.ism-art ellipse {
  animation: cloudPulse 12s ease-in-out infinite;
  transform-origin: center;
}

/* Filaments = faint, wispy structure */
.filaments path {
  fill: none;
  stroke: var(--accent);
  stroke-width: 1.2;
  opacity: 0.35;
  stroke-linecap: round;
  animation: flow 10s ease-in-out infinite;
  transform-origin: center;
}

/* Dense gas clumps */
.clumps circle {
  fill: var(--accent-deep);
  opacity: 0.6;
}

/* Stars = warm contrast */
.stars circle {
  fill: var(--accent-warm);
  opacity: 0.9;
  animation: twinkle 2.5s infinite alternate;
}

.stars circle:nth-child(1) { animation-delay: 0s; }
.stars circle:nth-child(2) { animation-delay: 0.8s; }
.stars circle:nth-child(3) { animation-delay: 1.6s; }

@keyframes flow {
  0%   { transform: translate(0px, 0px) scale(1); }
  25%  { transform: translate(6px, -4px) scale(1.02); }
  50%  { transform: translate(-4px, 6px) scale(0.98); }
  75%  { transform: translate(5px, 3px) scale(1.01); }
  100% { transform: translate(0px, 0px) scale(1); }
}

@keyframes twinkle {
  0%   { opacity: 0.4; transform: scale(0.8); }
  100% { opacity: 1; transform: scale(1.4); }
}

@keyframes cloudPulse {
  0%   { transform: scale(1); opacity: 0.25; }
  50%  { transform: scale(1.08); opacity: 0.4; }
  100% { transform: scale(1); opacity: 0.25; }
}

.filaments-rotate {
  animation: rotateSlow 60s linear infinite;
  transform-origin: center;
}

@keyframes rotateSlow {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.clumps circle {
  animation: condense 6s ease-in-out infinite;
}

@keyframes condense {
  0%   { transform: scale(1); opacity: 0.5; }
  50%  { transform: scale(1.4); opacity: 0.9; }
  100% { transform: scale(1); opacity: 0.5; }
}

/* ---------- HOME — currently / news ---------- */
.split {
  background: var(--bg-soft);
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 4rem;
  margin-top: 5rem;
  padding-top: 4rem;
  border-top: 1px solid var(--rule-soft);
}

.split-aside {
  font-family: var(--sans);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--ink-soft);
  font-weight: 500;
  padding-top: 0.6rem;
}

.feed {
  list-style: none;
  padding: 0;
  margin: 0;
}

.feed li {
  display: grid;
  grid-template-columns: 6.5rem 1fr;
  gap: 1.5rem;
  padding: 1.1rem 0;
  border-bottom: 1px dashed var(--rule-soft);
}

.feed li:first-child { padding-top: 0; }
.feed li:last-child { border-bottom: none; }

.feed-date {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
  padding-top: 0.2rem;
}

.feed-text { margin: 0; }
.feed-text strong { font-weight: 600; }

/* ---------- Research grid ---------- */
.research-list {
  display: grid;
  gap: 0;
  margin-top: 3rem;
}

.research-entry {
  display: grid;
  grid-template-columns: 2.2rem 1fr;
  gap: 2rem;
  padding: 2.2rem 0;
  border-top: 1px solid var(--rule-soft);
  align-items: start;
}

.research-entry:last-child { border-bottom: 1px solid var(--rule-soft); }

.research-num {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
  padding-top: 0.4rem;
  letter-spacing: 0.05em;
}

.research-body h3 {
  font-size: 1.45rem;
  margin-bottom: 0.6rem;
}

.research-tags {
  font-family: var(--sans);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent);
  margin-bottom: 0.6rem;
  font-weight: 500;
}

.research-body p {
  margin-bottom: 0.8rem;
  max-width: var(--max-prose);
}

.research-links {
  font-family: var(--sans);
  font-size: 0.85rem;
  margin: 0;
}

.research-links a { margin-right: 1.2rem; }

.section-title {
  text-align: center;
  font-size: 2rem;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 2rem;
}

.section-title::after {
  content: "";
  display: block;
  width: 60px;
  height: 1px;
  background: var(--rule-soft);
  margin: 0.8rem auto 0;
}

.recently {
  background: var(--bg-soft);
  padding: 3rem 2rem;
  border-radius: 16px;
  margin-bottom: 3rem;
}

.recently-content {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 2rem;
  align-items: start;
}

.recently-art {
  display: flex;
  justify-content: center;
}

.recently-art svg {
  width: 100%;
  max-width: 260px;
}

.recently-feed {
  max-width: 700px;
}

@media (max-width: 800px) {
  .recently-content {
    grid-template-columns: 1fr;
  }

  .recently-art {
    order: -1; /* puts SVG above text */
  }

  .section-title {
    font-size: 1.8rem;
  }
}

/* ---------- Publications ---------- */
.pub-meta-bar {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  font-family: var(--sans);
  font-size: 0.85rem;
  margin-top: 1rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--rule-soft);
}

.pub-year {
  display: grid;
  grid-template-columns: 6rem 1fr;
  gap: 2.5rem;
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--rule-soft);
}

.pub-year-label {
  font-family: var(--serif-display);
  font-size: 2rem;
  color: var(--ink);
  font-variation-settings: "SOFT" 0, "opsz" 144;
  font-weight: 400;
  position: sticky;
  top: 5rem;
  align-self: start;
  height: fit-content;
  padding-top: 0.2rem;
}

.pub-list {
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: pub;
}

.pub-list li {
  margin-bottom: 1.6rem;
  padding-left: 0;
  line-height: 1.55;
  font-size: 1rem;
}

.pub-list li:last-child { margin-bottom: 0; }

.pub-list .me { font-weight: 600; color: var(--accent); }
.pub-list em { font-style: italic; }

.pub-links {
  display: inline-block;
  margin-left: 0.3rem;
  font-family: var(--sans);
  font-size: 0.82rem;
}

.pub-links a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--rule-soft);
  padding-bottom: 1px;
  margin-right: 0.3rem;
}

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

.pub-links .sep { color: var(--ink-faint); margin: 0 0.2rem; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  margin-top: 3rem;
}

.contact-block h3 {
  font-family: var(--sans);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--ink-soft);
  font-weight: 500;
  margin-bottom: 0.7rem;
  letter-spacing: 0.18em;
}

.contact-block p { margin-bottom: 0.4rem; }

.contact-link-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.contact-link-list li {
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--rule-soft);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
}

.contact-link-list li:last-child { border-bottom: none; }

.contact-link-list .label {
  font-family: var(--sans);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-soft);
}

.contact-link-list .value {
  font-family: var(--mono);
  font-size: 0.92rem;
  color: var(--ink);
}

.cv-card {
  margin-top: 3.5rem;
  padding: 2rem 2.2rem;
  background: var(--bg-soft);
  border-left: 2px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.cv-card h3 {
  font-family: var(--serif-display);
  font-size: 1.5rem;
  margin: 0 0 0.3rem 0;
  color: var(--ink);
  font-variation-settings: "SOFT" 50, "opsz" 36;
  text-transform: none;
  letter-spacing: -0.01em;
}

.cv-card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.button {
  display: inline-block;
  padding: 0.85rem 1.6rem;
  background: var(--ink);
  color: var(--bg);
  font-family: var(--sans);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.2s var(--ease);
}

.button:hover { background: var(--accent); color: var(--bg); }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--rule-soft);
  padding: 2.5rem 2rem;
  margin-top: 4rem;
  font-family: var(--sans);
  font-size: 0.82rem;
  color: var(--ink-soft);
  position: relative;
  z-index: 2;
}

.site-footer-inner {
  max-width: var(--max-wide);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.site-footer .glyph {
  font-family: var(--serif-display);
  font-style: italic;
  color: var(--accent-warm);
}

.about {
  background: var(--bg-soft);
  padding: 3rem 2rem;
  border-radius: 16px;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 2.5rem;
  align-items: start;
}

.profile-pic {
  width: 100%;
  border-radius: 12px;
  object-fit: cover;
  box-shadow: 0 12px 30px rgba(0,0,0,0.25);
}

.about-photo {
  display: flex;
  justify-content: center;
}

@media (max-width: 800px) {
  .about-content {
    grid-template-columns: 1fr;
  }

  .about-photo {
    order: -1; /* puts image above text */
    margin-bottom: 1.5rem;
  }
}

/* ---------- Responsive ---------- */
@media (max-width: 880px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    min-height: auto;
    padding-top: 2rem;
  }
  .orbit-art { justify-self: center; max-width: 280px; }
  .split { grid-template-columns: 1fr; gap: 1.5rem; }
  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .pub-year { grid-template-columns: 1fr; gap: 1rem; }
  .pub-year-label { position: static; font-size: 1.6rem; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }

  .site-nav-inner {
    padding: 1rem 1.25rem;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.8rem;
  }
  .nav-links { gap: 1.4rem; font-size: 0.74rem; }

  .page, .page-wide { padding: 3rem 1.25rem 4rem; }

  .hero-meta { grid-template-columns: 1fr; gap: 0.2rem; }
  .hero-meta dt { padding-top: 0.8rem; }

  .feed li { grid-template-columns: 1fr; gap: 0.2rem; }
  .feed-date { padding-top: 0; }

  .research-entry { grid-template-columns: 1fr; gap: 0.6rem; }

  .cv-card { flex-direction: column; align-items: flex-start; }

  .site-footer-inner { flex-direction: column; align-items: flex-start; }
}

/* Reduce motion preference */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}