/* ═══════════════════════════════════════════════════════════════════════════
   FONTS
═══════════════════════════════════════════════════════════════════════════ */

@font-face {
  font-family: 'DM Sans';
  src: url('../fonts/DM_Sans/DMSans-VariableFont_opsz,wght.ttf') format('truetype');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'DM Sans';
  src: url('../fonts/DM_Sans/DMSans-Italic-VariableFont_opsz,wght.ttf') format('truetype');
  font-weight: 100 900;
  font-style: italic;
  font-display: swap;
}

@font-face {
  font-family: 'Hedvig Letters Serif';
  src: url('../fonts/Hedvig_Letters_Serif/HedvigLettersSerif-Regular-VariableFont_opsz.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

/* ═══════════════════════════════════════════════════════════════════════════
   DESIGN SYSTEM — Warm palette, serif + sans pairing
═══════════════════════════════════════════════════════════════════════════ */

:root {
  /* Light theme */
  --bg: #F4F4F0;
  --bg-subtle: #f5e1c8;
  --fg: #2a1f15;
  --fg-muted: #5e4a30;
  --fg-subtle: #8a7a5f;
  --border: #ead9bf;
  --border-strong: #d9c5a3;
  --surface: rgba(249, 237, 224, 0.7);
  --surface-solid: #f9ede0;
  --accent: #9a5020;
  --accent-subtle: rgba(154, 80, 32, 0.1);

  /* Glass effect */
  --glass-bg: rgba(249, 237, 224, 0.6);
  --glass-border: rgba(42, 31, 21, 0.06);
  --glass-blur: 20px;
  --nav-bg: rgba(245, 225, 200, 0.85);

  /* Semantic colors */
  --burgundy: #7a1f2a;
  --burgundy-subtle: rgba(122, 31, 42, 0.12);
  --teal: #1a524d;
  --teal-subtle: rgba(26, 82, 77, 0.12);

  /* Color blocks — solid pastels for section/card fills */
  --block-peach: #f5d4b0;
  --block-tan: #e5d3a0;
  --block-sage: #c9d9c5;
  --block-clay: #e8b89a;
  --block-ink: #2a1f15;

  /* Typography */
  --font-sans: 'DM Sans', sans-serif;
  --font-serif: 'Hedvig Letters Serif', serif;
  --font-mono: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, monospace;

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
}

[data-theme="dark"] {
  --bg: #1C1C1A;
  --bg-subtle: #241c13;
  --fg: #f1e8d0;
  --fg-muted: #b3a684;
  --fg-subtle: #8a7a5f;
  --border: #3a2f20;
  --border-strong: #4a3d2a;
  --surface: rgba(26, 20, 14, 0.7);
  --surface-solid: #1a140e;
  --accent: #d08252;
  --accent-subtle: rgba(208, 130, 82, 0.15);

  --glass-bg: rgba(26, 20, 14, 0.6);
  --glass-border: rgba(241, 232, 208, 0.06);
  --nav-bg: rgba(36, 28, 19, 0.85);

  --burgundy: #c74f5a;
  --burgundy-subtle: rgba(199, 79, 90, 0.15);
  --teal: #68b5ae;
  --teal-subtle: rgba(104, 181, 174, 0.15);

  /* Color blocks — richer tones for dark mode */
  --block-peach: #7a4a2a;
  --block-tan: #6b5a32;
  --block-sage: #3a5548;
  --block-clay: #8a4a32;
  --block-ink: #f1e8d0;
}

/* ═══════════════════════════════════════════════════════════════════════════
   BASE STYLES
═══════════════════════════════════════════════════════════════════════════ */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: var(--bg);
  color: var(--fg);
  min-height: 100%;
}

body {
  margin: 0;
  padding: var(--space-7) var(--space-5);
  padding-top: 100px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  font-feature-settings: "liga" 0, "clig" 0;
  font-variant-ligatures: no-common-ligatures no-discretionary-ligatures no-contextual;
}

/* ═══════════════════════════════════════════════════════════════════════════
   TYPOGRAPHY
═══════════════════════════════════════════════════════════════════════════ */

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.02em;

}

h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 2.5rem);
  font-weight: 400;
  letter-spacing: -0.01em;
  text-align: center;
  margin-bottom: var(--space-3);
}

h2 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  margin-top: var(--space-8);
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border);
}

h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-top: var(--space-7);
  margin-bottom: var(--space-4);
  color: var(--fg);
  letter-spacing: -0.01em;
}


h4 {
  font-size: 1rem;
  margin-top: var(--space-5);
  margin-bottom: var(--space-3);
  color: var(--fg-muted);
}

p {
  margin: 0 0 var(--space-4);
  color: var(--fg);
}

a {
  color: var(--accent);
  text-decoration-color: transparent;
  text-underline-offset: 3px;
  transition: text-decoration-color 0.15s ease, color 0.15s ease;
}

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

ul {
  margin: 0 0 var(--space-4);
  padding-left: var(--space-5);
}

li {
  margin-bottom: var(--space-2);
}

li ul {
  margin-top: var(--space-2);
  margin-bottom: var(--space-2);
}

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--bg-subtle);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

strong {
  font-weight: 600;
}

.muted {
  color: var(--fg-muted);
}

/* ═══════════════════════════════════════════════════════════════════════════
   NAVIGATION — Fixed glass header
═══════════════════════════════════════════════════════════════════════════ */

.nav {
  position: fixed;
  top: var(--space-4);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2);
  background: var(--nav-bg);
  backdrop-filter: blur(var(--glass-blur)) saturate(180%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(180%);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-full);
  width: max-content;
  max-width: calc(100% - var(--space-6));
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-link {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  text-decoration: none;
  color: var(--fg-muted);
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.15s ease, background 0.15s ease;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--burgundy);
  background: var(--burgundy-subtle);
  text-decoration: none;
}

.nav-link.active {
  color: var(--bg);
  background: var(--burgundy);
}

.nav-link svg {
  width: 18px;
  height: 18px;
}

@media (max-width: 600px) {
  .nav {
    gap: var(--space-1);
    padding: var(--space-1) var(--space-2);
  }

  .nav-link {
    padding: var(--space-2) var(--space-3);
    font-size: 0.8125rem;
  }
}

/* ═══════════════════════════════════════════════════════════════════════════
   THEME TOGGLE — Minimal pill button
═══════════════════════════════════════════════════════════════════════════ */

.theme-toggle {
  position: fixed;
  bottom: var(--space-5);
  right: var(--space-5);
  z-index: 1000;
}

.theme-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur)) saturate(180%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background 0.15s ease;
}

.theme-btn:hover {
  background: var(--surface);
}

.theme-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.theme-btn svg {
  width: 20px;
  height: 20px;
  color: var(--fg-muted);
}

.theme-btn .icon-sun { display: none; }
.theme-btn .icon-moon { display: block; }

[data-theme="dark"] .theme-btn .icon-sun { display: block; }
[data-theme="dark"] .theme-btn .icon-moon { display: none; }

/* ═══════════════════════════════════════════════════════════════════════════
   HERO / INTRO SECTION
═══════════════════════════════════════════════════════════════════════════ */

.hero {
  text-align: center;
  margin-bottom: var(--space-7);
}

.hero-subtitle {
  font-family: var(--font-serif);
  color: var(--fg-muted);
  font-size: 1.0625rem;
  margin-bottom: var(--space-5);
}

.hero-bio {
  color: var(--fg-muted);
  font-size: 0.9375rem;
  line-height: 1.6;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--space-5);
}

.hero-profile {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-full);
  object-fit: cover;
  border: 1px solid var(--border);
  margin-bottom: var(--space-5);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  background: transparent;
  border: 1px solid var(--fg-subtle);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--fg-subtle);
}

/* ═══════════════════════════════════════════════════════════════════════════
   CHIPS — For dates and labels
═══════════════════════════════════════════════════════════════════════════ */

/* Date chips — refined emphasis, like .me but reads as a label */
.chip {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--space-2);
  background: var(--surface-solid);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
  font-style: italic;
  color: var(--fg-muted);
  margin-left: var(--space-2);
  white-space: nowrap;
  letter-spacing: 0.01em;
}

/* Section title chips — accent pill, matches site design language */
h3 .chip, h4 .chip {
  font-size: 0.8125rem;
  font-weight: 500;
  font-style: normal;
  letter-spacing: -0.01em;
  text-transform: none;
  padding: var(--space-1) var(--space-3);
  margin-left: 0;
  background: var(--accent-subtle);
  border: 1px solid transparent;
  border-radius: var(--radius-full);
  color: var(--accent);
}

/* Author name highlight */
.me {
  font-weight: 600;
  background: var(--accent-subtle);
  padding: 1px 4px;
  border-radius: 3px;
}

/* Publication styling */
.pub-item {
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border);
}

.pub-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.pub-title {
  font-family: var(--font-serif);
  font-weight: 400;
  color: var(--fg);
  display: block;
  margin-bottom: var(--space-2);

}

.pub-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.pub-journal {
  font-style: italic;
  color: var(--fg-muted);
}

.pub-year {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--fg-muted);
}

.pub-authors {
  font-size: 0.9375rem;
  color: var(--fg-muted);
  line-height: 1.5;
}

.pub-doi {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-2);
  padding: var(--space-1) var(--space-3);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-subtle);
  border: 1px solid transparent;
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease;
}

.pub-doi:hover {
  background: var(--accent);
  color: var(--bg);
  text-decoration: none;
}

.pub-doi::before {
  content: '';
  display: inline-block;
  width: 12px;
  height: 12px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239a5020' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M18 13v6a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h6'/%3E%3Cpolyline points='15 3 21 3 21 9'/%3E%3Cline x1='10' y1='14' x2='21' y2='3'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
}

.pub-doi:hover::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f9ede0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M18 13v6a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h6'/%3E%3Cpolyline points='15 3 21 3 21 9'/%3E%3Cline x1='10' y1='14' x2='21' y2='3'/%3E%3C/svg%3E");
}

.pub-pdf {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-2);
  margin-left: var(--space-2);
  padding: var(--space-1) var(--space-3);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--teal);
  background: var(--teal-subtle);
  border: 1px solid transparent;
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease;
}

.pub-pdf:hover {
  background: var(--teal);
  color: var(--bg);
  text-decoration: none;
}

.pub-pdf::before {
  content: '';
  display: inline-block;
  width: 12px;
  height: 12px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231a524d' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z'/%3E%3Cpolyline points='14 2 14 8 20 8'/%3E%3Cline x1='12' y1='18' x2='12' y2='12'/%3E%3Cline x1='9' y1='15' x2='12' y2='18'/%3E%3Cline x1='15' y1='15' x2='12' y2='18'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
}

.pub-pdf:hover::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f9ede0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z'/%3E%3Cpolyline points='14 2 14 8 20 8'/%3E%3Cline x1='12' y1='18' x2='12' y2='12'/%3E%3Cline x1='9' y1='15' x2='12' y2='18'/%3E%3Cline x1='15' y1='15' x2='12' y2='18'/%3E%3C/svg%3E");
}

.pub-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
}

.pub-doi + .pub-doi {
  margin-left: var(--space-2);
}

/* Outreach links */
.outreach-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.outreach-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-subtle);
  border: 1px solid transparent;
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease;
}

.outreach-link:hover {
  background: var(--accent);
  color: var(--bg);
  text-decoration: none;
}

.outreach-link::before {
  content: '';
  display: inline-block;
  width: 12px;
  height: 12px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239a5020' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M18 13v6a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h6'/%3E%3Cpolyline points='15 3 21 3 21 9'/%3E%3Cline x1='10' y1='14' x2='21' y2='3'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
}

.outreach-link:hover::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f9ede0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M18 13v6a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h6'/%3E%3Cpolyline points='15 3 21 3 21 9'/%3E%3Cline x1='10' y1='14' x2='21' y2='3'/%3E%3C/svg%3E");
}

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

/* Event cards for talks/conferences */
.event-card {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2) var(--space-4);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--border);
}

.event-card:last-child {
  border-bottom: none;
}

.event-name {
  font-weight: 600;
  color: var(--fg);
  flex: 1 1 200px;
  min-width: 200px;
}

.event-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  color: var(--fg-muted);
  font-size: 0.875rem;
}

.event-location {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

.event-type {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--space-2);
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--fg-muted);
}

.event-title {
  width: 100%;
  font-style: italic;
  color: var(--fg-muted);
  margin-top: var(--space-1);
}

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

/* Skills — two-column layout */
.skills-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.skill-row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: var(--space-4);
  align-items: baseline;
}

.skill-category {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding-top: 2px;
}

.skill-items {
  color: var(--fg);
  font-size: 0.9375rem;
  line-height: 1.6;
}

@media (max-width: 500px) {
  .skill-row {
    grid-template-columns: 1fr;
    gap: var(--space-1);
  }

  .skill-category {
    margin-bottom: var(--space-1);
  }
}

/* Experience timeline */
.experience-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: var(--space-4);
  border-left: 2px solid var(--border);
  padding-left: var(--space-5);
}

.experience-item {
  position: relative;
  padding-bottom: var(--space-5);
}

.experience-item:last-child {
  padding-bottom: 0;
}

.experience-item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-5) - 5px);
  top: 6px;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
}

.experience-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2) var(--space-3);
  margin-bottom: var(--space-2);
}

.experience-title {
  font-weight: 600;
  color: var(--fg);
  font-size: 1rem;
}

.experience-location {
  font-size: 0.875rem;
  color: var(--fg-muted);
}

.experience-details {
  margin: 0;
  padding-left: var(--space-4);
  color: var(--fg-muted);
  font-size: 0.9375rem;
}

.experience-details li {
  margin-bottom: var(--space-1);
}

.experience-details li:last-child {
  margin-bottom: 0;
}

.experience-thesis {
  font-style: italic;
}

/* ═══════════════════════════════════════════════════════════════════════════
   PROJECT CARDS — Solid color blocks with round corners
═══════════════════════════════════════════════════════════════════════════ */

.projects-intro {
  margin-top: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border);
}

.projects-intro p {
  margin: var(--space-3) 0 0;
  color: var(--fg-muted);
  font-size: 1rem;
  max-width: 52ch;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-5);
}

.project-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 220px;
  padding: var(--space-5);
  background: var(--block-peach);
  border-radius: var(--radius-xl);
  text-decoration: none;
  color: var(--block-ink);
  transition: transform 0.2s ease, filter 0.2s ease;
}

.project-card:hover {
  transform: translateY(-2px);
  filter: brightness(0.97);
  text-decoration: none;
}

[data-theme="dark"] .project-card {
  color: var(--fg);
}

[data-theme="dark"] .project-card:hover {
  filter: brightness(1.08);
}

.project-card--peach { background: var(--block-peach); }
.project-card--tan   { background: var(--block-tan); }
.project-card--sage  { background: var(--block-sage); }
.project-card--clay  { background: var(--block-clay); }

.project-card h3 {
  margin: 0 0 var(--space-3);
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 400;
  line-height: 1.2;
  color: inherit;
}

.project-card p {
  margin: 0;
  font-size: 0.9375rem;
  color: inherit;
  opacity: 0.8;
}

.project-card .project-card-tag {
  display: inline-block;
  margin-bottom: var(--space-5);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.7;
}

/* ═══════════════════════════════════════════════════════════════════════════
   CONTACT SECTION
═══════════════════════════════════════════════════════════════════════════ */

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-5);
  margin-top: var(--space-5);
}

.contact-block h4 {
  margin: 0 0 var(--space-3);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--fg-subtle);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.email-link {
  display: inline-flex;
  align-items: center;
  padding: var(--space-3) var(--space-5);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: 500;
  color: var(--fg);
  transition: background 0.15s ease, border-color 0.15s ease;
}

.email-link:hover {
  background: var(--surface);
  border-color: var(--border-strong);
  text-decoration: none;
}

.profile-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.profile-link {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--fg-muted);
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.profile-link:hover {
  background: var(--bg-subtle);
  color: var(--fg);
  border-color: var(--border-strong);
  text-decoration: none;
}

/* Platform-specific hover colors */
.profile-link[data-platform="x"]:hover { background: #000; color: #fff; border-color: #000; }
.profile-link[data-platform="bluesky"]:hover { background: #0085ff; color: #fff; border-color: #0085ff; }
.profile-link[data-platform="orcid"]:hover { background: #a6ce39; color: #000; border-color: #a6ce39; }
.profile-link[data-platform="scholar"]:hover { background: #4285f4; color: #fff; border-color: #4285f4; }
.profile-link[data-platform="linkedin"]:hover { background: #0a66c2; color: #fff; border-color: #0a66c2; }
.profile-link[data-platform="mastodon"]:hover { background: #6364ff; color: #fff; border-color: #6364ff; }

/* ═══════════════════════════════════════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════════════════════════════════════ */

footer {
  margin-top: auto;
  padding-top: var(--space-5);
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.8125rem;
  color: var(--fg-subtle);
}

footer p {
  margin: 0;
}

footer .sep {
  margin: 0 var(--space-2);
  opacity: 0.6;
}

/* ═══════════════════════════════════════════════════════════════════════════
   PROJECT DETAIL PAGES
═══════════════════════════════════════════════════════════════════════════ */

.project-detail {
  max-width: 720px;
  margin: 0 auto;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  margin-bottom: var(--space-5);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--fg-muted);
  transition: background 0.15s ease, color 0.15s ease;
}

.back-link:hover {
  background: var(--bg-subtle);
  color: var(--fg);
  text-decoration: none;
}

.back-link svg {
  width: 16px;
  height: 16px;
}

/* Self-hosting project styles */
.project-detail figure {
  margin: var(--space-5) 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
}

.project-detail figure img {
  display: block;
  width: 100%;
  height: auto;
}

.project-detail figcaption {
  padding: var(--space-3) var(--space-4);
  font-size: 0.875rem;
  color: var(--fg-muted);
  background: var(--bg-subtle);
}

/* ═══════════════════════════════════════════════════════════════════════════
   RENDER GALLERY — Blender project
═══════════════════════════════════════════════════════════════════════════ */

.render-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-5);
}

.render-card {
  cursor: pointer;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur)) saturate(150%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(150%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.render-card:hover {
  background: var(--surface);
  border-color: var(--border-strong);
}

.render-card img,
.render-card video {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.render-card[data-fit="contain"] img {
  object-fit: contain;
  background: var(--bg-subtle);
}

.render-card-info {
  padding: var(--space-3) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.render-card-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--fg);
  margin: 0;
}

/* Chip variants */
.chip-scientific {
  background: var(--burgundy-subtle);
  color: var(--burgundy);
  border-color: transparent;
}

.chip-personal {
  background: var(--teal-subtle);
  color: var(--teal);
  border-color: transparent;
}

.project-icon {
  width: 64px;
  height: 64px;
  border-radius: 14px;
  margin: var(--space-4) 0;
  display: block;
}

.wip-note {
  color: var(--fg-muted);
  font-style: italic;
}

.footer-meta {
  font-size: 0.75rem;
  margin-top: var(--space-2);
  color: var(--fg-subtle);
}

time {
  font-weight: 700;
}

/* ── LIGHTBOX ─────────────────────────────────────────────── */

dialog.render-lightbox {
  border: none;
  background: transparent;
  padding: 0;
  max-width: min(960px, 92vw);
  width: 100%;
  outline: none;
  position: fixed;
  inset: 0;
  margin: auto;
}

dialog.render-lightbox::backdrop {
  background: rgba(0, 0, 0, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.lightbox-inner {
  background: var(--surface-solid);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
  max-height: 90vh;
}

/* Grid header */
.lb-grid-header {
  padding: var(--space-5) var(--space-6) var(--space-3);
  padding-right: calc(var(--space-6) + 52px);
  flex-shrink: 0;
}

.lb-grid-header h4 {
  margin: 0 0 var(--space-2);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--fg);
}

.lb-grid-header p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* Grid tiles */
.lightbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4) var(--space-3);
  overflow-y: auto;
  flex: 1;
}

.lightbox-grid-item {
  cursor: pointer;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: #0d0d0d;
  border: 2px solid transparent;
  animation: gridExplode 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) both;
  animation-delay: calc(var(--i, 0) * 80ms);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.lightbox-grid-item:hover {
  transform: scale(1.03);
  border-color: var(--border-strong);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.22);
}

.lightbox-grid-item img,
.lightbox-grid-item video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@keyframes gridExplode {
  from { opacity: 0; transform: scale(0.3) translateY(14px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

/* Grid footer */
.lb-grid-footer {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-6);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

/* Zoom / single item view */
.lightbox-media {
  position: relative;
  flex-shrink: 0;
}

.lightbox-media img,
.lightbox-media video {
  display: block;
  width: 100%;
  height: auto;
  max-height: 74vh;
  object-fit: contain;
  background: #0a0a0a;
}

.lightbox-media img[hidden],
.lightbox-media video[hidden] {
  display: none;
}

/* Back button */
.lightbox-back {
  position: absolute;
  bottom: var(--space-3);
  left: var(--space-3);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(0, 0, 0, 0.5);
  border: none;
  border-radius: var(--radius-full);
  color: #fff;
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  padding: 6px var(--space-3);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background 0.15s ease;
  z-index: 5;
}

.lightbox-back:hover { background: rgba(0, 0, 0, 0.75); }

/* Caption bar */
.lb-zoom-meta {
  padding: var(--space-3) var(--space-5);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-shrink: 0;
  flex-wrap: wrap;
}

.lb-zoom-meta h4 {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--fg);
  flex: 1;
  min-width: 0;
}

.lb-zoom-footer {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* Zoom-in transition */
.lightbox-media.zoom-in {
  animation: zoomFromGrid 0.32s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

@keyframes zoomFromGrid {
  from { opacity: 0; transform: scale(0.86); }
  to   { opacity: 1; transform: scale(1); }
}

/* Multi-image badge */
.render-card-count {
  position: absolute;
  top: var(--space-2);
  left: var(--space-2);
  background: rgba(0, 0, 0, 0.5);
  color: #fff;
  border-radius: var(--radius-full);
  padding: 2px var(--space-2);
  font-size: 0.6875rem;
  font-weight: 600;
  pointer-events: none;
  z-index: 1;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.render-card[data-multi] {
  box-shadow:
    -4px 5px 0 0 var(--surface),
    -5px 6px 0 1px var(--border),
     4px 6px 0 0 var(--surface),
     5px 7px 0 1px var(--border);
}

/* Close button */
.lightbox-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  background: rgba(0, 0, 0, 0.38);
  border: none;
  border-radius: var(--radius-full);
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.125rem;
  line-height: 1;
  color: #fff;
  z-index: 10;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background 0.15s ease;
}

.lightbox-close:hover { background: rgba(0, 0, 0, 0.65); }

/* ═══════════════════════════════════════════════════════════════════════════
   RESPONSIVE ADJUSTMENTS
═══════════════════════════════════════════════════════════════════════════ */

@media (max-width: 600px) {
  body {
    padding: var(--space-5) var(--space-4);
    padding-top: 80px;
  }

  h1 {
    font-size: 1.75rem;
  }

  h2 {
    font-size: 1.25rem;
    margin-top: var(--space-7);
  }

  .tags {
    gap: var(--space-1);
  }

  .tag {
    font-size: 0.75rem;
    padding: 2px var(--space-2);
  }

  .chip {
    display: block;
    margin-left: 0;
    margin-top: var(--space-2);
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .render-grid {
    grid-template-columns: 1fr;
  }

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

  .theme-toggle {
    bottom: var(--space-4);
    right: var(--space-4);
  }
}

/* ═══════════════════════════════════════════════════════════════════════════
   PRINT STYLES
═══════════════════════════════════════════════════════════════════════════ */

@media print {
  .nav, .theme-toggle {
    display: none;
  }

  body {
    padding-top: 0;
    max-width: 100%;
  }
}