/* ==========================================================================
   main.css — Liam Carroll personal website
   Hand-written. No frameworks.
   ========================================================================== */

/* --- 1. Design Tokens (CSS Custom Properties) --- */

:root {
  /* Colours — Light mode (default) */
  --bg:             #fafaf8;
  --bg-secondary:   #f0efeb;
  --text:           #2d2d2d;
  --text-secondary: #5a5a5a;
  --accent:         #4a6741;
  --accent-hover:   #3a5334;
  --accent-light:   #e8efe6;
  --border:         #ddd9d0;
  --code-bg:        #f5f2ed;

  /* Typography */
  --font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont,
    'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Consolas',
    'Liberation Mono', monospace;

  /* Spacing */
  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  2rem;
  --space-xl:  3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  /* Layout */
  --max-width: 720px;
  --nav-height: 56px;
}


/* --- 2. Dark Mode --- */

/* System preference (when no explicit choice saved) */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --bg:             #1a1a1e;
    --bg-secondary:   #242428;
    --text:           #e0ddd8;
    --text-secondary: #9a9690;
    --accent:         #7db872;
    --accent-hover:   #9aca91;
    --accent-light:   #2a332a;
    --border:         #3a3a3e;
    --code-bg:        #2a2a2e;
  }
}

/* Explicit dark override */
html[data-theme='dark'] {
  --bg:             #1a1a1e;
  --bg-secondary:   #242428;
  --text:           #e0ddd8;
  --text-secondary: #9a9690;
  --accent:         #7db872;
  --accent-hover:   #9aca91;
  --accent-light:   #2a332a;
  --border:         #3a3a3e;
  --code-bg:        #2a2a2e;
}

/* Explicit light override */
html[data-theme='light'] {
  --bg:             #fafaf8;
  --bg-secondary:   #f0efeb;
  --text:           #2d2d2d;
  --text-secondary: #5a5a5a;
  --accent:         #4a6741;
  --accent-hover:   #3a5334;
  --accent-light:   #e8efe6;
  --border:         #ddd9d0;
  --code-bg:        #f5f2ed;
}


/* --- 3. Reset & Base --- */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-height) + var(--space-lg));
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

::selection {
  background: var(--accent-light);
  color: var(--text);
}


/* --- 4. Typography --- */

h1, h2, h3, h4 {
  font-family: var(--font-body);
  font-weight: 600;
  line-height: 1.25;
  color: var(--text);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; margin-top: var(--space-2xl); }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.1rem; }

p {
  margin-top: 0;
  margin-bottom: var(--space-md);
}

ul, ol {
  margin-top: 0;
  margin-bottom: var(--space-md);
  padding-left: var(--space-lg);
}

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

blockquote {
  margin: var(--space-lg) 0;
  padding: var(--space-md) var(--space-lg);
  border-left: 3px solid var(--accent);
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-style: italic;
}

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--code-bg);
  padding: 0.15em 0.4em;
  border-radius: 3px;
}

pre {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.5;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: var(--space-md);
  overflow-x: auto;
  margin: var(--space-lg) 0;
}

pre code {
  background: none;
  padding: 0;
  font-size: inherit;
}

/* Collapsible BibTeX blocks */
details {
  margin: var(--space-sm) 0 var(--space-md);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-secondary);
}

summary {
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  user-select: none;
}

summary:hover {
  color: var(--accent);
}

details[open] summary {
  margin-bottom: var(--space-sm);
}

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: var(--space-xl) 0;
}

strong { font-weight: 600; }

em { font-style: italic; }


/* --- 5. Layout --- */

.site-main {
  padding-top: calc(var(--nav-height) + var(--space-lg));
  padding-bottom: var(--space-3xl);
  min-height: calc(100vh - 120px);
}

.content-wrapper {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

@media (max-width: 600px) {
  .content-wrapper {
    padding: 0 var(--space-md);
  }
}


/* --- 6. Navigation --- */

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(250, 250, 248, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background-color 0.2s ease;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) .site-nav {
    background: rgba(26, 26, 30, 0.92);
  }
}
html[data-theme='dark'] .site-nav {
  background: rgba(26, 26, 30, 0.92);
}
html[data-theme='light'] .site-nav {
  background: rgba(250, 250, 248, 0.92);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

@media (max-width: 600px) {
  .nav-inner {
    padding: 0 var(--space-md);
  }
}

.nav-title {
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.nav-title:hover {
  color: var(--accent);
  text-decoration: none;
}

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

.nav-links a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.15s ease;
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

/* Nav icons */
.nav-icon {
  display: inline-flex;
  align-items: center;
  margin-right: 4px;
  vertical-align: -2px;
  opacity: 0.6;
  transition: opacity 0.15s ease;
}

.nav-links a:hover .nav-icon,
.nav-links a.active .nav-icon {
  opacity: 1;
}

/* Hamburger — hidden on desktop */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: var(--space-xs);
  cursor: pointer;
  color: var(--text);
}

/* Mobile nav */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
    align-items: center;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: var(--space-sm) 0;
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
  }

  .nav-links a {
    padding: var(--space-sm) var(--space-lg);
    font-size: 1rem;
    width: 100%;
  }

  .nav-links a.active::after {
    display: none;
  }

  .nav-open .nav-links {
    display: flex;
  }

  /* Animate hamburger to X */
  .nav-open .hamburger-top {
    transform: translateY(6px) rotate(45deg);
    transform-origin: center;
  }
  .nav-open .hamburger-mid {
    opacity: 0;
  }
  .nav-open .hamburger-bot {
    transform: translateY(-6px) rotate(-45deg);
    transform-origin: center;
  }

  .hamburger-top, .hamburger-mid, .hamburger-bot {
    transition: transform 0.2s ease, opacity 0.2s ease;
  }

  /* Theme toggle in mobile menu */
  .nav-links .theme-toggle {
    margin: var(--space-xs) var(--space-lg);
    align-self: flex-start;
  }
}

/* Theme toggle button */
.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  transition: color 0.15s ease;
  border-radius: 4px;
}

.theme-toggle:hover {
  color: var(--text);
  background: var(--bg-secondary);
}

/* Show sun in dark mode, moon in light mode */
.icon-sun { display: none; }
.icon-moon { display: block; }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) .icon-sun { display: block; }
  :root:not([data-theme='light']) .icon-moon { display: none; }
}
html[data-theme='dark'] .icon-sun { display: block; }
html[data-theme='dark'] .icon-moon { display: none; }
html[data-theme='light'] .icon-sun { display: none; }
html[data-theme='light'] .icon-moon { display: block; }


/* --- 7. Homepage --- */

/* Hero */
.hero {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.hero-photo img {
  width: 360px;
  border-radius: 6px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.10);
}

.hero-text h1 {
  margin-top: 0;
  margin-bottom: var(--space-xs);
  font-size: 2.25rem;
}

.tagline {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
  line-height: 1.5;
}

.hero-contact {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0;
}

.hero-contact .sep {
  margin: 0 var(--space-xs);
  color: var(--border);
}

@media (max-width: 600px) {
  .hero {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-lg);
  }

  .hero-photo img {
    width: 280px;
  }

  .hero-text h1 {
    font-size: 1.75rem;
  }
}

/* Bio */
.bio {
  margin-bottom: var(--space-xl);
}

.bio p:last-child {
  margin-bottom: 0;
}

/* Gallery link card */
.gallery-card {
  position: relative;
  display: block;
  margin-bottom: var(--space-xl);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  background: var(--bg-secondary);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.gallery-card:hover,
.gallery-card:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.18);
}

/* Three-panel photo strip */
.gallery-card__panels {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  height: 220px;
}

.gallery-card__panel {
  position: relative;
  overflow: hidden;
  background: var(--bg-secondary);
}

/* Layers stack on top of each other and crossfade via opacity */
.gallery-card__img {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 1.4s ease-in-out, transform 0.4s ease;
}

.gallery-card__img.is-visible {
  opacity: 1;
}

.gallery-card:hover .gallery-card__img {
  transform: scale(1.04);
}

.gallery-card__body {
  position: absolute;
  inset: auto 0 0 0;
  padding: var(--space-lg) var(--space-md) var(--space-md);
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0) 0%,
    rgba(0, 0, 0, 0.55) 45%,
    rgba(0, 0, 0, 0.78) 100%
  );
  color: #fff;
}

.gallery-card__eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.85;
  margin-bottom: var(--space-xs);
}

.gallery-card__title {
  display: block;
  font-size: 1.35rem;
  font-weight: 600;
  line-height: 1.2;
}

.gallery-card__meta {
  display: block;
  margin-top: var(--space-xs);
  font-size: 0.9rem;
  opacity: 0.9;
}

.gallery-card__arrow {
  display: inline-block;
  transition: transform 0.25s ease;
}

.gallery-card:hover .gallery-card__arrow {
  transform: translateX(4px);
}

@media (prefers-reduced-motion: reduce) {
  .gallery-card,
  .gallery-card__img,
  .gallery-card__arrow {
    transition: none;
  }
  .gallery-card:hover {
    transform: none;
  }
  .gallery-card:hover .gallery-card__img,
  .gallery-card:hover .gallery-card__arrow {
    transform: none;
  }
}

@media (max-width: 600px) {
  /* Taller strip so the photos still read above the text gradient */
  .gallery-card__panels {
    height: 240px;
  }
  .gallery-card__title {
    font-size: 1.15rem;
  }
  .gallery-card__body {
    padding: var(--space-xl) var(--space-md) var(--space-md);
  }
}

/* Recent Work */
.recent-work {
  margin-bottom: var(--space-2xl);
}

.recent-work h2 {
  margin-top: 0;
  margin-bottom: var(--space-lg);
  font-size: 1.35rem;
}

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

.work-item {
  display: flex;
  gap: var(--space-lg);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0;
}

.work-item:first-child {
  border-top: 1px solid var(--border);
}

.work-meta {
  flex-shrink: 0;
  width: 100px;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.work-date {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
}

.work-venue {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.work-title {
  font-weight: 600;
  font-size: 1rem;
}

.work-authors {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 0.15em;
  margin-bottom: 0;
}

.work-description {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: var(--space-xs);
  margin-bottom: 0;
}

@media (max-width: 600px) {
  .work-item {
    flex-direction: column;
    gap: var(--space-xs);
  }

  .work-meta {
    width: auto;
    flex-direction: row;
    gap: var(--space-sm);
  }
}

/* Atmospheric landscape backgrounds */
.atmosphere-section {
  position: relative;
  margin: 0;
  padding: var(--space-2xl) 0;
  overflow: hidden;
}

.atmosphere-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.atmosphere-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.7) brightness(0.55);
  opacity: 0.45;
}

/* Default gradient: fade from bg at top and bottom (used by --continued) */
.atmosphere-section::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    180deg,
    var(--bg) 0%,
    rgba(250, 250, 248, 0.52) 10%,
    rgba(250, 250, 248, 0.42) 90%,
    var(--bg) 100%
  );
  pointer-events: none;
}

/* Dark mode: image and overlay adjustments */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) .atmosphere-bg img {
    filter: saturate(0.65) brightness(0.4);
    opacity: 0.55;
  }
  :root:not([data-theme='light']) .atmosphere-section::after {
    background: linear-gradient(
      180deg,
      var(--bg) 0%,
      rgba(26, 26, 30, 0.50) 10%,
      rgba(26, 26, 30, 0.40) 90%,
      var(--bg) 100%
    );
  }
}
html[data-theme='dark'] .atmosphere-bg img {
  filter: saturate(0.65) brightness(0.4);
  opacity: 0.55;
}
html[data-theme='dark'] .atmosphere-section::after {
  background: linear-gradient(
    180deg,
    var(--bg) 0%,
    rgba(26, 26, 30, 0.50) 10%,
    rgba(26, 26, 30, 0.40) 90%,
    var(--bg) 100%
  );
}
html[data-theme='light'] .atmosphere-section::after {
  background: linear-gradient(
    180deg,
    var(--bg) 0%,
    rgba(250, 250, 248, 0.52) 10%,
    rgba(250, 250, 248, 0.42) 90%,
    var(--bg) 100%
  );
}

.atmosphere-content {
  position: relative;
  z-index: 2;
}

/* Top atmosphere: starts at very top of page, bleeds behind nav */
.atmosphere-section--top {
  margin-top: calc(-1 * (var(--nav-height) + var(--space-lg)));
  padding-top: calc(var(--nav-height) + var(--space-lg) + var(--space-xl));
}

/* Top section: no fade from bg at top — photo visible immediately */
.atmosphere-section--top::after {
  background: linear-gradient(
    180deg,
    rgba(250, 250, 248, 0.42) 0%,
    rgba(250, 250, 248, 0.42) 90%,
    var(--bg) 100%
  );
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) .atmosphere-section--top::after {
    background: linear-gradient(
      180deg,
      rgba(26, 26, 30, 0.40) 0%,
      rgba(26, 26, 30, 0.40) 90%,
      var(--bg) 100%
    );
  }
}
html[data-theme='dark'] .atmosphere-section--top::after {
  background: linear-gradient(
    180deg,
    rgba(26, 26, 30, 0.40) 0%,
    rgba(26, 26, 30, 0.40) 90%,
    var(--bg) 100%
  );
}
html[data-theme='light'] .atmosphere-section--top::after {
  background: linear-gradient(
    180deg,
    rgba(250, 250, 248, 0.42) 0%,
    rgba(250, 250, 248, 0.42) 90%,
    var(--bg) 100%
  );
}

/* Continued atmosphere: fade in from bg, fade out to bg */
.atmosphere-section--continued {
  padding-top: var(--space-2xl);
}

/* Page atmosphere: single background spanning the full page */
.atmosphere-section--page {
  margin-top: calc(-1 * (var(--nav-height) + var(--space-lg)));
  padding-top: calc(var(--nav-height) + var(--space-lg) + var(--space-xl));
  padding-bottom: var(--space-3xl);
  min-height: calc(100vh - 120px);
}

.atmosphere-section--page::after {
  background: linear-gradient(
    180deg,
    rgba(250, 250, 248, 0.42) 0%,
    rgba(250, 250, 248, 0.42) 95%,
    var(--bg) 100%
  );
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) .atmosphere-section--page::after {
    background: linear-gradient(
      180deg,
      rgba(26, 26, 30, 0.40) 0%,
      rgba(26, 26, 30, 0.40) 95%,
      var(--bg) 100%
    );
  }
}
html[data-theme='dark'] .atmosphere-section--page::after {
  background: linear-gradient(
    180deg,
    rgba(26, 26, 30, 0.40) 0%,
    rgba(26, 26, 30, 0.40) 95%,
    var(--bg) 100%
  );
}
html[data-theme='light'] .atmosphere-section--page::after {
  background: linear-gradient(
    180deg,
    rgba(250, 250, 248, 0.42) 0%,
    rgba(250, 250, 248, 0.42) 95%,
    var(--bg) 100%
  );
}

/* Recent work styling within atmosphere */
.atmosphere-section .recent-work {
  margin-bottom: 0;
}

.atmosphere-section .recent-work h2 {
  margin-top: 0;
}

.atmosphere-section .work-item {
  border-color: rgba(150, 150, 140, 0.25);
}

/* Work list continuation: no top border on first item */
.work-list--continued .work-item:first-child {
  border-top: none;
}


/* Panoramic crossfade slideshow between bio and recent work */
.slideshow-single {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 1;
  max-height: 220px;
  overflow: hidden;
  border-radius: 6px;
  margin: var(--space-lg) 0 var(--space-xl);
}

.slideshow-single img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 1.8s ease;
}

.slideshow-single img.active {
  opacity: 1;
}


@media (max-width: 600px) {
  .slideshow-single {
    aspect-ratio: 2 / 1;
    max-height: 180px;
  }
}


/* --- 8. Page Content --- */

.page-header {
  margin-bottom: var(--space-xl);
}

.page-header h1 {
  margin-top: 0;
  margin-bottom: var(--space-sm);
}

.page-description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 0;
}

.page-content {
  /* Prose styles for markdown-rendered content */
}

.page-content img {
  border-radius: 4px;
  margin: var(--space-lg) 0;
}

.page-content h2:first-child {
  margin-top: 0;
}


/* --- 9. Gallery --- */

.gallery-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-xs);
}

.gallery-item {
  aspect-ratio: 1;
  overflow: hidden;
  cursor: pointer;
  border-radius: 2px;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 0.2s ease, transform 0.3s ease;
}

.gallery-item:hover img {
  opacity: 0.85;
  transform: scale(1.03);
}

@media (max-width: 1024px) {
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 600px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Lightbox */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.92);
  justify-content: center;
  align-items: center;
  padding: var(--space-lg);
}

.lightbox.open {
  display: flex;
}

.lightbox-img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 4px;
}

.lightbox-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-lg);
  background: none;
  border: none;
  color: #fff;
  font-size: 2rem;
  cursor: pointer;
  padding: var(--space-sm);
  line-height: 1;
  opacity: 0.7;
  transition: opacity 0.15s;
}

.lightbox-close:hover { opacity: 1; }

.lightbox-prev,
.lightbox-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: #fff;
  font-size: 3rem;
  cursor: pointer;
  padding: var(--space-md);
  line-height: 1;
  opacity: 0.5;
  transition: opacity 0.15s;
}

.lightbox-prev:hover,
.lightbox-next:hover { opacity: 1; }

.lightbox-prev { left: var(--space-sm); }
.lightbox-next { right: var(--space-sm); }


/* --- 10. CV --- */

.cv-section {
  margin-bottom: var(--space-2xl);
}

.cv-section h2 {
  font-size: 1.35rem;
  margin-top: 0;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--accent);
}

.cv-entry {
  display: flex;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--border);
}

.cv-entry:last-child {
  border-bottom: none;
  padding-bottom: 0;
  margin-bottom: 0;
}

.cv-year {
  flex-shrink: 0;
  width: 120px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding-top: 2px;
}

.cv-details {
  flex: 1;
}

.cv-details h3 {
  margin-top: 0;
  margin-bottom: var(--space-xs);
  font-size: 1rem;
}

.cv-institution {
  font-size: 0.9rem;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

.cv-description {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0;
}

.cv-description ul {
  margin-top: var(--space-xs);
  margin-bottom: 0;
  padding-left: var(--space-md);
}

@media (max-width: 600px) {
  .cv-entry {
    flex-direction: column;
    gap: var(--space-xs);
  }

  .cv-year {
    width: auto;
  }
}


/* --- 11. YouTube Embeds --- */

.video-container {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 */
  height: 0;
  overflow: hidden;
  max-width: 100%;
  margin: var(--space-lg) 0;
  border-radius: 4px;
}

.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}


/* --- 12. Footer --- */

.site-footer {
  border-top: 1px solid var(--border);
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.site-footer p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
}

.footer-links .sep {
  margin: 0 var(--space-xs);
  color: var(--border);
}


/* --- 13. Utilities --- */

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.text-center { text-align: center; }


/* --- 14. Print Styles --- */

@media print {
  .site-nav,
  .site-footer,
  .theme-toggle,
  .nav-toggle {
    display: none !important;
  }

  .site-main {
    padding-top: 0;
  }

  body {
    color: #000;
    background: #fff;
  }

  a {
    color: #000;
    text-decoration: underline;
  }

  .content-wrapper {
    max-width: 100%;
  }
}


/* --- 15. Desktop refinements --- */

@media (min-width: 769px) {
  h1 { font-size: 2.5rem; }

  .hero-text h1 {
    font-size: 2.5rem;
  }
}