/* ============================================================
   COMPONENTS — components.css
   ============================================================ */

/* ---- HEADER ---- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-4);
  padding-bottom: var(--space-4);
}

/* Logo */
.site-logo {
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: var(--weight-light);
  color: var(--color-ink);
  line-height: 1;
  transition: opacity var(--duration-fast) var(--ease-out);
}
.site-logo:hover { opacity: 0.6; color: var(--color-ink); }

.site-logo span {
  font-size: 8px;
  font-family: var(--font-body);
  font-weight: var(--weight-medium);
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--color-accent);
}

/* Primary nav */
.primary-nav {
  display: flex;
  align-items: center;
}

.primary-nav a {
  font-size: 10px;
  font-weight: var(--weight-medium);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-ink-3);
  padding: var(--space-3) var(--space-4);
  position: relative;
  transition: color var(--duration-fast) var(--ease-out);
}

.primary-nav a::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: var(--space-4);
  right: var(--space-4);
  height: 1px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-base) var(--ease-out);
}

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

/* Contact pill */
.primary-nav a[href="contact.html"] {
  color: var(--color-accent);
  border: 1px solid rgba(184,92,56,0.35);
  padding: 6px var(--space-5);
  margin-left: var(--space-3);
  transition: background var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out),
              border-color var(--duration-fast) var(--ease-out);
}
.primary-nav a[href="contact.html"]::after { display: none; }
.primary-nav a[href="contact.html"]:hover {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 34px; height: 34px;
  padding: 7px;
  color: var(--color-ink);
  background: transparent;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 1px;
  background: currentColor;
  transition: transform var(--duration-base) var(--ease-out),
              opacity var(--duration-fast) var(--ease-out);
  transform-origin: center;
}
.nav-toggle span:nth-child(1) { width: 20px; }
.nav-toggle span:nth-child(2) { width: 14px; }
.nav-toggle span:nth-child(3) { width: 20px; }

.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { width: 20px; transform: translateY(-6px) rotate(-45deg); }

/* Footer */
.site-footer {
  background: #1A1917;
  color: rgba(240,237,230,0.95);
  padding-block: var(--space-16) var(--space-10);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-16);
  padding-bottom: var(--space-10);
  border-bottom: 1px solid rgba(240,237,230,0.12);
  margin-bottom: var(--space-6);
}

.footer-brand .site-logo       { color: rgba(240,237,230,0.95); }
.footer-brand .site-logo span  { color: var(--color-accent-light); }
.footer-brand p {
  color: rgba(240,237,230,0.7);
  font-size: var(--text-sm);
  max-width: 30ch;
  margin-top: var(--space-4);
}

.footer-nav h6 { color: rgba(240,237,230,0.55); margin-bottom: var(--space-4); }
.footer-nav ul { display: flex; flex-direction: column; gap: var(--space-3); }
.footer-nav a  { font-size: var(--text-sm); color: rgba(240,237,230,0.75); transition: color var(--duration-fast) var(--ease-out); }
.footer-nav a:hover { color: var(--color-accent-light); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}
.footer-bottom p {
  font-size: var(--text-xs);
  color: rgba(240,237,230,0.5);
  max-width: none;
  letter-spacing: var(--tracking-wide);
}
.footer-bottom a { text-decoration: none; }
.footer-bottom a:hover { text-decoration: underline; text-decoration-color: #fff; }

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: 12px var(--space-8);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  border-radius: 0;
  cursor: pointer;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  transition: color var(--duration-base) var(--ease-out),
              background var(--duration-base) var(--ease-out),
              border-color var(--duration-base) var(--ease-out);
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  transform: translateX(-101%);
  transition: transform var(--duration-base) var(--ease-out);
  z-index: 0;
}
.btn > * { position: relative; z-index: 1; }

.btn--primary {
  background: var(--color-accent);
  color: #fff;
  border: 1px solid var(--color-accent);
}
.btn--primary::before { background: var(--color-accent-light); }
.btn--primary:hover   { color: #fff; }
.btn--primary:hover::before { transform: translateX(0); }

.btn--outline {
  background: transparent;
  color: var(--color-ink);
  border: 1px solid var(--color-border-strong);
}
.btn--outline::before { background: var(--color-accent); }
.btn--outline:hover   { color: #fff; border-color: var(--color-accent); }
.btn--outline:hover::before { transform: translateX(0); }

.btn--ghost {
  background: transparent;
  color: var(--color-ink-3);
  border: none;
  padding-inline: 0;
}
.btn--ghost::before { display: none; }
.btn--ghost:hover   { color: var(--color-accent); }

.btn--light {
  background: var(--color-ink);
  color: var(--color-bg);
  border: 1px solid var(--color-ink);
}
.btn--light::before { background: var(--color-accent); }
.btn--light:hover   { color: #fff; }
.btn--light:hover::before { transform: translateX(0); }

.btn .arrow { transition: transform var(--duration-base) var(--ease-out); }
.btn:hover .arrow { transform: translateX(4px); }

/* ---- PROJECT CARD ---- */
.project-card {
  display: flex;
  flex-direction: column;
  background: var(--color-bg-2);
  border: 1px solid var(--color-border);
  overflow: hidden;
  border-radius: 6px;
  transition: border-color var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
  cursor: pointer;
}

.project-card:hover {
  border-color: var(--color-border-hover);
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
  transform: translateY(-3px);
}

.project-card__image {
  overflow: hidden;
  background: var(--color-bg-3);
  position: relative;
}

.project-card__image img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
  transition: transform 0.7s var(--ease-out);
  position: relative;
  z-index: 1;
  pointer-events: none;
  cursor: pointer;
}

.project-card:hover .project-card__image img { transform: scale(1.04); }

.project-card__image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(28,28,26,0.18);
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-out);
  pointer-events: none;
}
.project-card:hover .project-card__image::after { opacity: 1; }

/* Zoom button */
.card-zoom-btn {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  z-index: 3;
  width: 30px; height: 30px;
  background: rgba(20,19,17,0.7);
  color: rgba(240,237,230,0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--duration-fast) var(--ease-out),
              background var(--duration-fast) var(--ease-out);
  cursor: zoom-in;
}
.project-card:hover .card-zoom-btn { opacity: 1; }
.card-zoom-btn:hover { background: var(--color-accent); color: #fff; }
@media (hover: none) {
  .card-zoom-btn { opacity: 1; }
  .gallery-item { cursor: pointer; }
}

.project-card__body {
  padding: var(--space-6);
  flex: 1;
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--color-border);
}

.project-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-3);
}

.project-card__category {
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: var(--weight-medium);
}

.project-card__location {
  font-size: var(--text-xs);
  color: var(--color-ink-3);
  letter-spacing: var(--tracking-wide);
}

.project-card__title {
  font-family: var(--font-display);
  font-size: clamp(var(--text-xl), 2vw, var(--text-2xl));
  font-weight: var(--weight-light);
  margin-bottom: var(--space-3);
  line-height: var(--leading-snug);
  color: var(--color-ink);
}

.project-card__desc {
  font-size: var(--text-sm);
  color: var(--color-ink-2);
  line-height: var(--leading-normal);
  flex: 1;
  margin-bottom: var(--space-5);
  max-width: none;
}

.project-card__link {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-ink-3);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  transition: color var(--duration-fast) var(--ease-out),
              gap var(--duration-base) var(--ease-out);
  margin-top: auto;
}
.project-card:hover .project-card__link { color: var(--color-accent); gap: var(--space-3); }

/* ---- METADATA TABLE ---- */
.meta-table {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-3) var(--space-8);
  font-size: var(--text-sm);
}
.meta-table dt {
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  font-size: var(--text-xs);
  color: var(--color-ink-3);
  padding-top: 2px;
}
.meta-table dd { color: var(--color-ink-2); }

/* ---- GALLERY GRID ---- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-3);
}

.gallery-item {
  overflow: hidden;
  cursor: zoom-in;
  background: var(--color-bg-3);
  position: relative;
  display: block;
  border-radius: 6px;
  touch-action: manipulation;
}

.gallery-item img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
  transition: transform 0.7s var(--ease-out);
  pointer-events: auto;
  cursor: zoom-in;
  touch-action: manipulation;
  position: relative;
  z-index: 0;
}

.figure-block.gallery-item img,
.figure-block > .gallery-item img {
  aspect-ratio: unset;
  object-fit: unset;
  height: auto;
}

.gallery-item:hover img { transform: scale(1.04); }

.gallery-item::after,
.figure-block::after,
.pw-project__images::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(28,28,26,0.18);
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-out);
  pointer-events: none;
  z-index: 1;
}
.gallery-item:hover::after,
.figure-block:hover::after,
.pw-project__images:hover::after { opacity: 1; }

.gallery-item::before,
.figure-block::before,
.pw-project__images::before {
  content: '';
  position: absolute;
  top: 10px;
  right: 10px;
  width: 36px;
  height: 36px;
  background: rgba(20,19,17,0.72) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='none' stroke='rgba(240,237,230,0.9)' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'/%3E%3Cline x1='11' y1='8' x2='11' y2='14'/%3E%3Cline x1='8' y1='11' x2='14' y2='11'/%3E%3C/svg%3E") center/18px no-repeat;
  border-radius: 50%;
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-out);
  pointer-events: none;
  z-index: 2;
}
.gallery-item:hover::before,
.figure-block:hover::before,
.pw-project__images:hover::before { opacity: 1; }
@media (hover: none) {
  .gallery-item::before,
  .figure-block::before,
  .pw-project__images::before { opacity: 0.8; }
  .gallery-item::after,
  .figure-block::after,
  .pw-project__images::after  { opacity: 0; }
}

/* ---- LIGHTBOX ---- */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(28,28,26,0.96);
  z-index: var(--z-modal);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-base) var(--ease-out);
  padding: var(--space-12) var(--space-6) var(--space-6);
}
.lightbox.is-open { opacity: 1; pointer-events: all; }

.lightbox__close {
  position: fixed;
  top: var(--space-5);
  right: var(--space-5);
  z-index: 1;
  color: rgba(247,246,244,0.65);
  background: rgba(247,246,244,0.08);
  width: 38px; height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out);
}
.lightbox__close:hover { background: var(--color-accent); color: #fff; }

.lightbox__img {
  display: block;
  max-width: 92vw;
  max-height: 82vh;
  width: auto; height: auto;
  object-fit: contain;
  user-select: none;
  -webkit-user-drag: none;
  cursor: zoom-in;
  flex-shrink: 0;
  border-radius: 6px;
}

.lightbox__caption {
  color: rgba(247,246,244,0.3);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-align: center;
  max-width: 80ch;
  flex-shrink: 0;
}

/* ---- CONTACT FORM ---- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-group label {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-ink-3);
}

.form-group input,
.form-group textarea,
.form-group select {
  background: var(--color-bg-3);
  border: 1px solid var(--color-border-strong);
  border-radius: 0;
  padding: var(--space-4) var(--space-4);
  font-size: var(--text-base);
  color: var(--color-ink);
  transition: border-color var(--duration-fast) var(--ease-out);
  width: 100%;
  font-family: var(--font-body);
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--color-ink-4); }

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

.form-group textarea { resize: vertical; min-height: 130px; }

.form-group .field-error { font-size: var(--text-xs); color: #c0392b; display: none; }
.form-group.has-error input,
.form-group.has-error textarea { border-color: #c0392b; }
.form-group.has-error .field-error { display: block; }

.form-success {
  display: none;
  padding: var(--space-8);
  background: var(--color-bg-2);
  border: var(--border-thin);
  text-align: center;
}
.form-success.is-visible { display: block; }

/* ---- FILTER BUTTONS ---- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-10);
}

.filter-btn {
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  border: 1px solid var(--color-border-strong);
  color: var(--color-ink-3);
  background: transparent;
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out),
              border-color var(--duration-fast) var(--ease-out);
}
.filter-btn:hover,
.filter-btn.is-active {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

/* ---- TAG ---- */
.tag {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  border: var(--border-thin);
  color: var(--color-ink-3);
}

/* ---- SEARCH ---- */
.search-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  background: transparent;
  border: none;
  color: var(--color-ink-3);
  cursor: pointer;
  margin-left: var(--space-2);
  transition: color var(--duration-fast) var(--ease-out);
}
.search-btn:hover { color: var(--color-accent); }

.search-overlay {
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-nav) + 10);
  background: rgba(20,19,17,0.97);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 15vh;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-base) var(--ease-out);
}
.search-overlay.is-open { opacity: 1; pointer-events: all; }

.search-overlay__close {
  position: absolute;
  top: var(--space-5); right: var(--space-5);
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(247,246,244,0.08);
  color: rgba(247,246,244,0.65);
  border: none; cursor: pointer;
  transition: background var(--duration-fast) var(--ease-out);
}
.search-overlay__close:hover { background: var(--color-accent); color: #fff; }

.search-overlay__inner {
  width: 100%;
  max-width: 640px;
  padding: 0 var(--space-6);
}

.search-overlay__label {
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: rgba(247,246,244,0.3);
  margin-bottom: var(--space-4);
  display: block;
}

.search-overlay__input-wrap {
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(247,246,244,0.2);
  gap: var(--space-4);
  padding-bottom: var(--space-3);
}

.search-overlay__input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  font-family: var(--font-display);
  font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
  font-weight: var(--weight-light);
  color: rgba(247,246,244,0.9);
  caret-color: var(--color-accent);
}
.search-overlay__input::placeholder { color: rgba(247,246,244,0.2); }

.search-overlay__results {
  margin-top: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.search-result {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  background: rgba(247,246,244,0.04);
  color: rgba(247,246,244,0.85);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: background var(--duration-fast) var(--ease-out),
              border-color var(--duration-fast) var(--ease-out);
}
.search-result:hover {
  background: rgba(247,246,244,0.08);
  border-color: var(--color-accent);
  color: #fff;
}
.search-result__title { font-size: var(--text-base); }
.search-result__meta  { font-size: var(--text-xs); color: rgba(247,246,244,0.35); letter-spacing: var(--tracking-wide); }
.search-result__empty { color: rgba(247,246,244,0.3); font-size: var(--text-sm); padding: var(--space-4) 0; }

/* ---- PUBLICATION CARD ---- */
.pub-card {
  border: 1px solid var(--color-border);
  padding: var(--space-8);
  background: var(--color-bg-3);
  display: flex;
  gap: var(--space-6);
  align-items: flex-start;
  transition: border-color var(--duration-base) var(--ease-out);
}
.pub-card:hover { border-color: var(--color-accent); }

.pub-card__icon {
  flex-shrink: 0;
  width: 44px; height: 44px;
  background: var(--color-accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
}

.pub-card__body { flex: 1; }

.pub-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: var(--weight-light);
  margin-bottom: var(--space-2);
  line-height: var(--leading-snug);
  color: var(--color-ink);
}

.pub-card__meta {
  font-size: var(--text-sm);
  color: var(--color-ink-3);
  margin-bottom: var(--space-3);
  max-width: none;
}

.pub-card__doi {
  font-size: var(--text-xs);
  color: var(--color-accent);
  word-break: break-all;
  letter-spacing: var(--tracking-wide);
}