/* De Gekkos: formal institutional stylesheet */

:root {
  --color-bg: #f9f8f6;
  --color-bg-elevated: #ffffff;
  --color-text: #1c1c1c;
  --color-text-muted: #4a4a4a;
  --color-border: #d4d0c8;
  --color-navy: #1e3550;
  --color-border-strong: var(--color-navy);
  /* Formal burgundy: draws the eye while staying institutional */
  --color-accent: #9f2138;
  --color-accent-hover: #7a192b;
  --color-accent-soft: rgba(159, 33, 56, 0.07);
  --font-serif: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --font-sans: "Source Sans 3", system-ui, sans-serif;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.75rem;
  --space-lg: 3rem;
  --space-xl: 5rem;
  --page-gutter: 1.75rem;
  --max-content: 68rem;
  --max-narrow: 42rem;
  /* Type scale */
  --fs-xs: 0.75rem;
  --fs-sm: 0.8125rem;
  --fs-body: 1rem;
  --fs-lead: 1.125rem;
  --fs-h3: 1.25rem;
  --fs-h4: 1.5rem;
  --fs-logo: 1.5rem;
  --fs-display: clamp(2.5rem, 5vw, 3.5rem);
  --fs-section: clamp(1.625rem, 2.5vw, 2rem);
  --fs-page-h1: clamp(1.75rem, 3.5vw, 2.5rem);
  --fs-lightbox-placeholder: clamp(1.5rem, 4vw, 2rem);
  --fs-icon-lg: 2rem;
}

@media (max-width: 42rem) {
  :root {
    --page-gutter: 1rem;
  }
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  font-weight: 400;
  line-height: 1.65;
  color: var(--color-text);
  background-color: var(--color-bg);
}

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

a {
  color: var(--color-accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

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

.container {
  width: 100%;
  max-width: var(--max-content);
  margin-inline: auto;
  padding-inline: var(--page-gutter);
}

.container.narrow {
  max-width: var(--max-narrow);
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-bg-elevated);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  max-width: var(--max-content);
  margin-inline: auto;
  padding: var(--space-sm) var(--page-gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.logo {
  font-family: var(--font-serif);
  font-size: var(--fs-logo);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-text);
  text-decoration: none;
}

.logo:hover {
  color: var(--color-accent);
}

.nav-primary {
  position: relative;
}

.nav-toggle {
  display: none;
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  cursor: pointer;
  color: var(--color-text);
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-md);
  align-items: center;
  justify-content: flex-end;
}

.nav-list a {
  font-size: var(--fs-sm);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  text-decoration: none;
}

.nav-list a:hover {
  color: var(--color-accent);
}

@media (max-width: 52rem) {
  .nav-toggle {
    display: block;
  }

  .nav-list {
    display: none;
    position: absolute;
    right: 0;
    top: calc(100% + 0.5rem);
    min-width: 14rem;
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-sm);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  }

  .nav-list.is-open {
    display: flex;
  }

  .nav-list a {
    padding: 0.35rem 0;
  }
}

/* Hero */

.hero {
  padding: var(--space-xl) var(--page-gutter) var(--space-lg);
  text-align: center;
  background: linear-gradient(180deg, var(--color-bg-elevated) 0%, var(--color-bg) 100%);
  border-bottom: 1px solid var(--color-border);
  box-shadow: inset 0 -1px 0 var(--color-accent-soft);
}

.hero-inner {
  max-width: 38rem;
  margin-inline: auto;
}

.hero-eyebrow {
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin: 0 0 var(--space-sm);
}

.hero-title {
  font-family: var(--font-serif);
  font-size: var(--fs-display);
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.1;
  margin: 0 0 var(--space-md);
  color: var(--color-text);
}

.hero-subtitle {
  font-size: var(--fs-lead);
  font-weight: 400;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin: 0 0 var(--space-lg);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
}

.hero-rule {
  max-width: 6rem;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent) 0%, #c94a5c 100%);
  margin: var(--space-lg) auto 0;
}

.btn {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.85rem 1.5rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: #fff;
}

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

.btn-ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-hover);
}

/* Sections */

.section {
  padding: var(--space-xl) var(--page-gutter);
}

main > section:nth-child(even) {
  background: var(--color-bg-elevated);
}

.section-title {
  font-family: var(--font-serif);
  font-size: var(--fs-section);
  font-weight: 600;
  letter-spacing: 0.02em;
  margin: 0 0 var(--space-md);
  color: var(--color-text);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

section:not(:has(.section-header)) .section-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: min(4.5rem, 35%);
  height: 2px;
  background: var(--color-accent);
}

.section-header {
  margin-bottom: var(--space-lg);
}

.section-header .section-title {
  margin-bottom: var(--space-sm);
  border-bottom: none;
  padding-bottom: 0;
}

.section-header .section-title::after {
  content: "";
  display: block;
  width: 3rem;
  height: 2px;
  background: var(--color-accent);
  margin-top: var(--space-sm);
}

.section-desc {
  margin: 0;
  color: var(--color-text-muted);
  font-size: var(--fs-body);
}

/* Mission & scope: editorial panel */

.section-about {
  padding-block: var(--space-lg);
}

.section-about-header {
  margin-bottom: var(--space-md);
}

.section-header .section-desc + .section-desc {
  margin-top: var(--space-sm);
}

.about-panel {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-accent);
  padding: var(--space-lg) var(--page-gutter);
  box-shadow:
    0 1px 2px rgba(30, 53, 80, 0.04),
    0 4px 24px rgba(30, 53, 80, 0.06);
}

.about-pillars {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.about-pillar {
  margin: 0;
  padding: var(--space-md) 0;
}

.about-pillar + .about-pillar {
  border-top: 1px solid var(--color-border);
}

.about-pillar-mark {
  display: block;
  font-family: var(--font-serif);
  font-size: var(--fs-h4);
  font-weight: 600;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: var(--space-sm);
  opacity: 0.92;
}

.about-pillar-title {
  font-family: var(--font-serif);
  font-size: var(--fs-h3);
  font-weight: 600;
  margin: 0 0 var(--space-xs);
  color: var(--color-text);
  letter-spacing: 0.01em;
}

.about-pillar-text {
  margin: 0;
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--color-text-muted);
}

@media (min-width: 48rem) {
  .about-pillars {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 var(--space-lg);
    padding-top: 0;
  }

  .about-pillar {
    padding: 0 var(--space-sm);
  }

  .about-pillar + .about-pillar {
    border-top: none;
    border-left: 1px solid var(--color-border);
  }

  .about-pillar:first-child {
    padding-left: 0;
  }

  .about-pillar:last-child {
    padding-right: 0;
  }
}

/* Gallery */

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr));
  gap: var(--space-md);
}

.gallery-item {
  margin: 0;
}

.gallery-thumb {
  width: 100%;
  padding: 0;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  cursor: pointer;
  overflow: hidden;
  transition: border-color 0.15s ease;
}

.gallery-thumb:hover,
.gallery-thumb:focus-visible {
  border-color: var(--color-accent);
  outline: none;
}

.gallery-thumb-placeholder {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  background: linear-gradient(145deg, #e8e6e2 0%, #d4cfc6 48%, #c9c4bb 100%);
  transition: filter 0.2s ease, opacity 0.2s ease;
}

.gallery-thumb:hover .gallery-thumb-placeholder,
.gallery-thumb:focus-visible .gallery-thumb-placeholder {
  filter: brightness(1.03);
}

.gallery-item figcaption {
  font-size: var(--fs-sm);
  font-style: italic;
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
  text-align: center;
}

/* Lightbox */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(28, 28, 28, 0.92);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-md) var(--page-gutter);
}

.lightbox[hidden] {
  display: none;
}

.lightbox-close {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  font-size: var(--fs-icon-lg);
  line-height: 1;
  color: #fff;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
}

.lightbox-close:hover {
  opacity: 0.85;
}

.lightbox-img {
  max-width: min(90vw, 56rem);
  max-height: 75vh;
  object-fit: contain;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.lightbox-caption {
  color: rgba(255, 255, 255, 0.85);
  font-size: var(--fs-body);
  text-align: center;
  max-width: 36rem;
  margin-top: var(--space-sm);
}

.lightbox.lightbox--no-image .lightbox-img {
  display: none;
}

.lightbox.lightbox--no-image .lightbox-caption {
  margin-top: 0;
  font-family: var(--font-serif);
  font-size: var(--fs-lightbox-placeholder);
  color: rgba(255, 255, 255, 0.95);
}

/* Events */

.events-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.event-card {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
}

.event-card:nth-child(even) {
  flex-direction: row-reverse;
}

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

.event-card-thumb {
  flex-shrink: 0;
  width: 7.5rem;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
}

.event-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(18%);
  transition: filter 0.2s ease;
}

.event-card:hover .event-card-thumb img {
  filter: grayscale(0%);
}

.event-card-body {
  flex: 1;
  min-width: 0;
}

.event-meta {
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

.event-meta time::after {
  content: " · ";
}

.event-title {
  font-family: var(--font-serif);
  font-size: var(--fs-h4);
  font-weight: 600;
  margin: 0 0 var(--space-sm);
}

.event-title a {
  color: var(--color-text);
  text-decoration: none;
}

.event-title a:hover {
  color: var(--color-accent);
}

.event-excerpt {
  margin: 0 0 var(--space-sm);
  color: var(--color-text-muted);
  max-width: 44rem;
}

.event-link {
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
}

@media (max-width: 36rem) {
  .event-card,
  .event-card:nth-child(even) {
    flex-direction: column;
  }

  .event-card-thumb {
    width: 100%;
    max-width: 12rem;
  }
}

/* Team */

.team-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr));
  gap: var(--space-lg) var(--space-md);
}

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

.team-photo {
  width: 8rem;
  height: 8rem;
  margin: 0 auto var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: linear-gradient(145deg, #e8e6e1 0%, #d4d0c8 100%);
}

.team-name {
  font-family: var(--font-serif);
  font-size: var(--fs-h3);
  font-weight: 600;
  margin: 0 0 0.25rem;
}

.team-role {
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin: 0 0 var(--space-xs);
}

.team-affil {
  font-size: var(--fs-body);
  color: var(--color-text-muted);
  margin: 0;
  line-height: 1.5;
}

/* Proceedings & communications */

.section-pubs {
  padding-block: var(--space-lg);
}

.section-pubs-header {
  margin-bottom: var(--space-md);
}

.pubs-panel {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-accent);
  padding: var(--space-lg) var(--page-gutter);
  box-shadow:
    0 1px 2px rgba(30, 53, 80, 0.04),
    0 4px 24px rgba(30, 53, 80, 0.06);
}

.pub-block {
  margin: 0;
  padding: var(--space-md) 0;
}

.pub-block + .pub-block {
  border-top: 1px solid var(--color-border);
}

.pub-block-title {
  font-family: var(--font-serif);
  font-size: var(--fs-h3);
  font-weight: 600;
  font-style: normal;
  margin: 0 0 var(--space-xs);
  color: var(--color-text);
  letter-spacing: 0.01em;
}

.pub-block-title cite {
  font-style: italic;
}

.pub-block-text {
  margin: 0;
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--color-text-muted);
}

@media (min-width: 48rem) {
  .pubs-panel {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 var(--space-lg);
    padding-top: var(--space-md);
    padding-bottom: var(--space-md);
  }

  .pub-block {
    padding: 0 var(--space-sm);
  }

  .pub-block + .pub-block {
    border-top: none;
    border-left: 1px solid var(--color-border);
  }

  .pub-block:first-child {
    padding-left: 0;
  }

  .pub-block:last-child {
    padding-right: 0;
  }
}

/* Contact */

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: var(--space-lg);
  align-items: start;
}

.contact-address {
  font-style: normal;
  line-height: 1.8;
  font-size: var(--fs-body);
}

.contact-details p {
  margin: 0 0 var(--space-sm);
  font-size: var(--fs-body);
}

.contact-details .label {
  display: block;
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 0.15rem;
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-md) var(--page-gutter);
  background: var(--color-bg-elevated);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  max-width: var(--max-content);
  margin-inline: auto;
}

.footer-copy {
  margin: 0;
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-md);
}

.footer-nav a {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  text-decoration: none;
}

.footer-nav a:hover {
  color: var(--color-accent);
}

/* Subpages */

.page-hero {
  padding: var(--space-lg) var(--page-gutter);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
}

.page-hero-inner {
  max-width: var(--max-content);
  margin-inline: auto;
}

.page-hero .breadcrumb {
  font-size: var(--fs-sm);
  letter-spacing: 0.04em;
  margin: 0 0 var(--space-sm);
}

.page-hero .breadcrumb a {
  text-decoration: none;
}

.page-hero h1 {
  font-family: var(--font-serif);
  font-size: var(--fs-page-h1);
  font-weight: 600;
  margin: 0 0 var(--space-sm);
}

.page-hero .event-meta-line {
  font-size: var(--fs-body);
  color: var(--color-text-muted);
  margin: 0;
}

.page-hero-actions {
  margin: var(--space-md) 0 0;
}

.event-card-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-sm) var(--space-md);
  margin-top: var(--space-xs);
}

.event-share-btn.event-share-btn--compact {
  padding: 0.55rem 1rem;
  font-size: var(--fs-sm);
  letter-spacing: 0.06em;
}

.event-share-btn--done {
  border-color: var(--color-accent);
  color: var(--color-accent-hover);
}

.article-body {
  max-width: var(--max-narrow);
  margin-inline: auto;
  padding: var(--space-xl) var(--page-gutter);
}

.article-body h2 {
  font-family: var(--font-serif);
  font-size: var(--fs-h4);
  font-weight: 600;
  margin: var(--space-lg) 0 var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-border);
}

.article-body h2:first-of-type {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}

.article-body p,
.article-body ul {
  color: var(--color-text-muted);
}

.article-body ul {
  padding-left: 1.25rem;
}

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

/* Application CTA (event pages) */

.application-block {
  margin: var(--space-sm) 0 var(--space-lg);
  padding: var(--space-md) var(--page-gutter);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  box-shadow: 0 1px 2px rgba(30, 53, 80, 0.05);
}

.application-block-intro {
  margin: 0 0 var(--space-md);
  color: var(--color-text-muted);
  font-size: var(--fs-body);
  line-height: 1.55;
}

.application-block-cta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-sm);
  margin: 0 0 var(--space-md);
}

.application-block-deadline {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.75rem;
  width: 100%;
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--color-border);
}

.application-block-label {
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.application-block-date {
  font-family: var(--font-serif);
  font-size: var(--fs-h3);
  font-weight: 600;
  color: var(--color-text);
}

.application-block-btn {
  align-self: stretch;
  text-align: center;
}

@media (min-width: 28rem) {
  .application-block-btn {
    align-self: flex-start;
    min-width: 14rem;
  }
}

.application-block-hint {
  margin: 0;
  width: 100%;
  font-size: var(--fs-xs);
  line-height: 1.4;
  color: var(--color-text-muted);
}

.article-body .application-block-list {
  margin: 0;
  padding: var(--space-md) 0 0 1.25rem;
  border-top: 1px solid var(--color-border);
  list-style-position: outside;
}

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