/* HackHPC design system — see HackHPC_Brand_Guide_2026.md */

:root {
  --primary-blue: #0277FA;
  --secondary-cyan: #06A1FC;
  --dark-blue: #022292;
  --ui-blue: #0954C7;
  --accent-orange: #FD741E;
  --support-sky: #8CC2E7;
  --neutral-ink: #111827;
  --neutral-white: #FFFFFF;
  --soft-gray: #F4F8FC;
  --line-gray: #D9E4F0;

  --font-sans: Inter, Arial, Helvetica, sans-serif;
  --font-mono: 'Liberation Mono', 'Roboto Mono', Consolas, monospace;

  --max-width: 1180px;
  --radius: 12px;
  --shadow: 0 4px 20px rgba(2, 34, 146, 0.08);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 400;
  color: var(--neutral-ink);
  background: var(--neutral-white);
  line-height: 1.6;
}

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

a { color: var(--ui-blue); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 { font-family: var(--font-sans); color: var(--dark-blue); line-height: 1.2; margin: 0 0 0.6em; }
h1 { font-weight: 800; font-size: clamp(2.1rem, 4vw, 3.2rem); }
h2 { font-weight: 700; font-size: clamp(1.6rem, 3vw, 2.1rem); }
h3 { font-weight: 700; font-size: 1.3rem; color: var(--ui-blue); }
p { margin: 0 0 1em; }

code, .mono { font-family: var(--font-mono); }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section { padding: 4rem 0; }
.section--tight { padding: 2.5rem 0; }
.section--soft { background: var(--soft-gray); }
.section--dark {
  background: linear-gradient(135deg, var(--dark-blue) 0%, var(--secondary-cyan) 60%, var(--primary-blue) 100%);
  color: var(--neutral-white);
}
.section--dark h1, .section--dark h2, .section--dark h3 { color: var(--neutral-white); }

.eyebrow {
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.8rem;
  color: var(--accent-orange);
  margin-bottom: 0.5rem;
  display: block;
}

/* Buttons */
.btn {
  display: inline-block;
  font-family: var(--font-sans);
  font-weight: 700;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none !important;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn-primary { background: var(--accent-orange); color: var(--neutral-white); }
.btn-primary:hover { background: #e5650f; transform: translateY(-1px); }
.btn-secondary { background: var(--neutral-white); color: var(--dark-blue); border-color: var(--neutral-white); }
.btn-secondary:hover { background: transparent; color: var(--neutral-white); }
.btn-outline { background: transparent; color: var(--ui-blue); border-color: var(--ui-blue); }
.btn-outline:hover { background: var(--ui-blue); color: var(--neutral-white); }
.btn-small { padding: 0.45rem 1rem; font-size: 0.85rem; }
.cta-row { display: flex; flex-wrap: wrap; gap: 0.85rem; margin-top: 1.75rem; }

/* Nav */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--neutral-white);
  border-bottom: 1px solid var(--line-gray);
}
.navbar { display: flex; align-items: center; justify-content: space-between; padding: 0.75rem 0; }
.navbar-logo img { height: 40px; }
.navbar-menu { display: flex; align-items: center; gap: 1.6rem; }
.navbar-menu a {
  font-weight: 500; color: var(--neutral-ink); font-size: 0.95rem;
}
.navbar-menu a:hover, .navbar-menu a.active { color: var(--ui-blue); text-decoration: none; }
.navbar-menu .btn { margin-left: 0.25rem; }

.hamburger {
  display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 0.4rem;
}
.hamburger span { width: 24px; height: 2.5px; background: var(--dark-blue); border-radius: 2px; }

@media (max-width: 860px) {
  .hamburger { display: flex; }
  .navbar-menu {
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--neutral-white);
    flex-direction: column; align-items: flex-start;
    gap: 0; padding: 0.5rem 0;
    border-bottom: 1px solid var(--line-gray);
    box-shadow: var(--shadow);
    display: none;
  }
  .navbar-menu.active { display: flex; }
  .navbar-menu a { width: 100%; padding: 0.85rem 1.5rem; }
  .navbar-menu .btn { margin: 0.5rem 1.5rem; }
}

/* Hero */
.hero { padding: 4.5rem 0 3.5rem; }
.hero.section--dark {
  background-image:
    linear-gradient(100deg, rgba(2, 34, 146, 0.93) 0%, rgba(2, 34, 146, 0.82) 32%, rgba(2, 34, 146, 0.5) 58%, rgba(2, 34, 146, 0.18) 82%),
    url('/assets/img/logos/hackhpc_hero_bkg.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.hero-content { max-width: 760px; }
.hero .tagline { font-size: 1.15rem; opacity: 0.95; max-width: 640px; }

/* Metrics */
.metrics-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1.25rem; margin-top: 2rem;
}
.metric-card {
  background: var(--neutral-white); border: 1px solid var(--line-gray);
  border-radius: var(--radius); padding: 1.5rem 1rem; text-align: center;
}
.metric-value { font-family: var(--font-sans); font-weight: 800; font-size: 2.2rem; color: var(--accent-orange); }
.metric-label { font-size: 0.9rem; color: var(--dark-blue); font-weight: 500; margin-top: 0.25rem; }

/* Pillars / cards grid */
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.5rem; }
.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.5rem; }
.card {
  background: var(--neutral-white); border: 1px solid var(--line-gray);
  border-radius: var(--radius); padding: 1.75rem; box-shadow: var(--shadow);
}
.card--soft { background: var(--soft-gray); border: none; box-shadow: none; }
.pillar-icon { font-size: 1.8rem; margin-bottom: 0.75rem; }

/* Events */
.filters {
  display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 1.5rem 0 2rem;
  align-items: center;
}
.filters input[type="search"], .filters select {
  font-family: var(--font-sans); padding: 0.6rem 0.9rem; border-radius: 8px;
  border: 1px solid var(--line-gray); background: var(--neutral-white); font-size: 0.95rem;
  max-width: 100%;
}
.filters input[type="search"] { flex: 1 1 220px; }
#teamFilter { flex: 1 1 220px; }
.results-count { font-size: 0.9rem; color: #4b5563; margin-bottom: 1rem; }

.events-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.25rem; }
.event-card, .course-card { display: flex; flex-direction: column; gap: 0.5rem; }
.event-card h3, .event-card h3 a { color: var(--accent-orange); }
.event-card .event-date, .course-card .event-date { font-size: 0.85rem; color: var(--ui-blue); font-weight: 600; }
.course-card .card-links { margin-top: auto; display: flex; gap: 0.6rem; flex-wrap: wrap; padding-top: 0.75rem; align-items: center; }
.badge {
  display: inline-block; font-size: 0.72rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.04em; padding: 0.2rem 0.6rem; border-radius: 999px;
  background: var(--support-sky); color: var(--dark-blue); width: fit-content;
}
.badge-hackathon { background: #DCEBFF; color: var(--ui-blue); }
.badge-codeathon { background: #FFE3D1; color: #B84B0F; }
.badge-faculty { background: #E4D9FB; color: #5B2FB8; }
.badge-training { background: #D8F5E3; color: #147041; }
.badge-doi { background: var(--accent-orange); color: var(--neutral-white); font-size: 0.65rem; padding: 0.1rem 0.45rem; margin-left: 0.3rem; }
.badge-award { background: var(--accent-orange); color: var(--neutral-white); font-size: 0.65rem; padding: 0.1rem 0.45rem; margin-left: 0.3rem; }
.partner-tags { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: 0.25rem; }
.partner-tag { font-size: 0.75rem; background: var(--soft-gray); border: 1px solid var(--line-gray); border-radius: 6px; padding: 0.15rem 0.5rem; color: var(--neutral-ink); }
.event-card .card-links { margin-top: auto; display: flex; gap: 0.6rem; flex-wrap: wrap; padding-top: 0.75rem; align-items: center; }
.repo-link { display: inline-flex; align-items: center; gap: 0.3rem; }
.event-card { scroll-margin-top: 6rem; transition: box-shadow 0.3s ease, border-color 0.3s ease; }
.event-card--highlight { box-shadow: 0 0 0 3px var(--accent-orange); border-color: var(--accent-orange); }
.teams-toggle { margin-top: 0.6rem; border-top: 1px solid var(--line-gray); padding-top: 0.6rem; }
.teams-toggle summary { cursor: pointer; font-size: 0.8rem; font-weight: 600; color: var(--ui-blue); }
.teams-toggle summary:hover { text-decoration: underline; }
.team-list { list-style: none; margin: 0.6rem 0 0; padding: 0; display: flex; flex-direction: column; gap: 0.4rem; }
.team-item {
  display: flex; align-items: center; flex-wrap: wrap; gap: 0.5rem;
  font-size: 0.82rem; background: var(--soft-gray); border-radius: 8px; padding: 0.4rem 0.65rem;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}
.team-item--highlight { background: #FFE9D6; box-shadow: 0 0 0 2px var(--accent-orange); }
.team-name { font-weight: 600; color: var(--neutral-ink); }
.team-award { font-size: 0.75rem; color: #9a5b00; }

.section-collapse summary {
  cursor: pointer; list-style: none; display: flex; align-items: center; gap: 0.6rem;
}
.section-collapse summary::-webkit-details-marker { display: none; }
.section-collapse summary h2 { margin: 0; }
.section-collapse summary::after {
  content: '▾'; color: var(--ui-blue); font-size: 1.1rem; line-height: 1;
  transition: transform 0.2s ease; flex-shrink: 0;
}
.section-collapse[open] summary::after { transform: rotate(180deg); }
.section-collapse-body { margin-top: 1rem; }
.resource-category-group { margin-top: 1.75rem; }
.resource-category-group:first-child { margin-top: 1rem; }
.category-heading {
  font-size: 0.78rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em;
  color: var(--accent-orange); margin: 0 0 0.75rem; padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--line-gray);
}
.category-heading .small { color: var(--neutral-ink); text-transform: none; letter-spacing: normal; font-weight: 500; }
.resource-icon {
  display: inline-block; width: 1.1em; height: 1.1em; flex-shrink: 0;
  vertical-align: -0.15em; margin-right: 0.4rem;
}
.resource-icon--img { object-fit: contain; border-radius: 3px; }
.resource-icon--fa { text-align: center; font-size: 1em; line-height: 1.1; color: var(--ui-blue); }

.videos-toggle { margin-top: 0.6rem; border-top: 1px solid var(--line-gray); padding-top: 0.6rem; }
.videos-toggle summary { cursor: pointer; font-size: 0.8rem; font-weight: 600; color: var(--ui-blue); }
.videos-toggle summary:hover { text-decoration: underline; }
.videos-toggle--general {
  background: var(--neutral-white); border: 1px solid var(--line-gray); border-radius: var(--radius);
  padding: 1.1rem 1.5rem; margin-bottom: 1.5rem;
}
.video-list { list-style: none; margin: 0.7rem 0 0; padding: 0; display: flex; flex-direction: column; gap: 0.5rem; }
.video-item { background: var(--soft-gray); border-radius: 8px; padding: 0.55rem 0.75rem; }
.video-name { display: inline-flex; align-items: center; gap: 0.4rem; font-weight: 600; font-size: 0.85rem; color: var(--ui-blue); }
.video-name:hover { text-decoration: underline; }
.video-summary { margin: 0.3rem 0 0; font-size: 0.8rem; color: var(--neutral-ink); }
.team-repo { margin-left: auto; font-size: 0.78rem; display: inline-flex; align-items: center; gap: 0.3rem; white-space: nowrap; }
.no-results { display: none; padding: 2rem; text-align: center; color: #4b5563; }

/* Partner icons */
.partner-icon {
  display: inline-flex; align-items: center; justify-content: center;
  flex-shrink: 0; border-radius: 10px; background: var(--neutral-white);
  border: 1px solid var(--line-gray); overflow: hidden;
}
.partner-icon img { width: 100%; height: 100%; object-fit: contain; padding: 4px; }
.partner-icon .fa-brands { color: var(--ui-blue); font-size: 55%; }
.partner-icon-fallback {
  width: 100%; height: 100%; display: flex; align-items: center; justify-content: center;
  font-family: var(--font-sans); font-weight: 800; color: var(--neutral-white);
  background: linear-gradient(135deg, var(--dark-blue), var(--secondary-cyan));
  font-size: 1.1em;
}
.partner-header { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.5rem; }
.partner-header h3, .partner-header-name { margin: 0; }

/* Partner strip */
.partner-strip-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 1rem; margin-top: 2rem;
}
.partner-strip-grid .partner-name { font-weight: 600; color: var(--dark-blue); font-size: 0.95rem; }

/* School grid */
.school-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 0.6rem; }
.school-item {
  display: flex; align-items: center; gap: 0.6rem; background: var(--neutral-white);
  border: 1px solid var(--line-gray); border-radius: 8px; padding: 0.5rem 0.7rem; color: var(--neutral-ink);
}
.school-item:hover { border-color: var(--ui-blue); text-decoration: none; background: var(--soft-gray); }
.school-name { font-size: 0.85rem; font-weight: 500; line-height: 1.25; }

/* Citations / research list */
.citation-list { display: flex; flex-direction: column; gap: 1.25rem; }
.citation-item {
  padding: 1.25rem 1.5rem; background: var(--neutral-white);
  border: 1px solid var(--line-gray); border-radius: var(--radius);
}
.citation-title { font-weight: 700; color: var(--dark-blue); font-size: 1.05rem; margin-bottom: 0.25rem; }
.citation-meta { font-size: 0.9rem; color: #4b5563; margin-bottom: 0.6rem; }
.citation-summary { font-size: 0.92rem; color: var(--neutral-ink); line-height: 1.6; margin: 0 0 0.85rem; }
.citation-authors { font-weight: 500; }
.citation-links { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.citation-links a {
  font-size: 0.82rem; font-weight: 600; color: var(--ui-blue);
  background: var(--soft-gray); border-radius: 999px; padding: 0.25rem 0.75rem;
}
.citation-links a:hover { background: var(--support-sky); text-decoration: none; }
.cite-buttons { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.75rem; padding-top: 0.75rem; border-top: 1px solid var(--line-gray); }
.cite-buttons .cite-label { font-size: 0.78rem; color: #4b5563; align-self: center; margin-right: 0.15rem; }
.cite-btn {
  font-family: var(--font-sans); font-weight: 600; font-size: 0.78rem;
  background: var(--neutral-white); color: var(--ui-blue); border: 1px solid var(--ui-blue);
  border-radius: 999px; padding: 0.3rem 0.85rem; cursor: pointer;
}
.cite-btn:hover { background: var(--ui-blue); color: var(--neutral-white); }

/* Citation modal */
.citation-modal-backdrop {
  display: none; position: fixed; inset: 0; background: rgba(2, 34, 146, 0.55);
  z-index: 1000; align-items: center; justify-content: center; padding: 1.5rem;
}
.citation-modal-backdrop.open { display: flex; }
.citation-modal {
  background: var(--neutral-white); border-radius: var(--radius); max-width: 640px; width: 100%;
  max-height: 85vh; overflow-y: auto; padding: 1.75rem; position: relative; box-shadow: var(--shadow);
}
.citation-modal-close {
  position: absolute; top: 1rem; right: 1rem; background: none; border: none;
  font-size: 1.5rem; line-height: 1; cursor: pointer; color: #4b5563; padding: 0.25rem 0.5rem;
}
.citation-modal-close:hover { color: var(--dark-blue); }
.citation-modal h3 { margin-bottom: 0.25rem; padding-right: 2rem; }
.citation-modal-source { font-size: 0.85rem; color: #4b5563; margin-bottom: 1.25rem; }
.citation-modal-tabs { display: flex; gap: 0.5rem; margin-bottom: 1rem; }
.citation-tab {
  font-family: var(--font-sans); font-weight: 700; font-size: 0.85rem;
  padding: 0.4rem 1rem; border-radius: 999px; border: 1px solid var(--line-gray);
  background: var(--soft-gray); color: var(--dark-blue); cursor: pointer;
}
.citation-tab.active { background: var(--dark-blue); color: var(--neutral-white); border-color: var(--dark-blue); }
.citation-modal-text {
  font-family: var(--font-mono); font-size: 0.85rem; line-height: 1.6; white-space: pre-wrap;
  word-break: break-word; background: var(--soft-gray); border-radius: 8px; padding: 1rem;
  margin: 0 0 1.25rem; max-height: 320px; overflow-y: auto; color: var(--neutral-ink);
}
.citation-modal-actions { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.citation-modal-actions button {
  font-family: var(--font-sans); font-weight: 700; font-size: 0.85rem;
  border-radius: 999px; padding: 0.5rem 1.1rem; cursor: pointer; border: 2px solid transparent;
}
#citationCopyBtn { background: var(--accent-orange); color: var(--neutral-white); }
#citationShareBtn, #citationDownloadBtn { background: transparent; color: var(--ui-blue); border-color: var(--ui-blue); }
#citationShareBtn:hover, #citationDownloadBtn:hover { background: var(--ui-blue); color: var(--neutral-white); }
.citation-modal-status { font-size: 0.8rem; color: #147041; margin-top: 0.6rem; min-height: 1.2em; }

/* Tables (FAQ / resources) */
.faq-item { border-bottom: 1px solid var(--line-gray); padding: 1.25rem 0; }
.faq-item h3 { margin-bottom: 0.4rem; }

/* Organizers */
.organizer-card { scroll-margin-top: 6rem; }
.organizer-header { display: flex; align-items: center; gap: 1rem; margin-bottom: 0.5rem; }
.organizer-photo { width: 72px; height: 72px; border-radius: 50%; object-fit: cover; flex-shrink: 0; border: 2px solid var(--line-gray); }
.organizer-header h3 { margin-bottom: 0.15rem; }
.organizer-affiliation { font-weight: 600; color: var(--ui-blue); margin: 0; display: flex; align-items: center; gap: 0.4rem; }
.organizer-affiliation-icon { border-radius: 4px; object-fit: contain; }
.organizer-links { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem; }
.organizer-links a {
  display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.82rem; font-weight: 600;
  color: var(--ui-blue); background: var(--soft-gray); border: 1px solid var(--line-gray);
  border-radius: 999px; padding: 0.35rem 0.85rem;
}
.organizer-links a:hover { background: var(--support-sky); text-decoration: none; }

/* Footer */
.site-footer { background: var(--dark-blue); color: var(--neutral-white); padding: 3rem 0 1.5rem; margin-top: 4rem; }
.footer-grid { display: grid; grid-template-columns: 2fr repeat(3, 1fr); gap: 2rem; }
.footer-grid h4 { color: var(--secondary-cyan); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 0.9rem; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; }
.footer-grid li { margin-bottom: 0.5rem; }
.footer-grid a { color: #E0EAFB; }
.footer-grid a:hover { color: var(--neutral-white); }
.footer-socials { display: flex; gap: 0.75rem; margin-top: 1.25rem; }
.footer-socials a {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 50%;
  background: rgba(255, 255, 255, 0.1); color: #E0EAFB; font-size: 0.95rem;
}
.footer-socials a:hover { background: var(--accent-orange); color: var(--neutral-white); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.15); margin-top: 2.5rem; padding-top: 1.5rem;
  font-size: 0.85rem; color: #B9CBEF; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.5rem;
}
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr 1fr; } }

/* Events network graph — conferences as hubs, events as spokes */
.timeline-h-hint { text-align: center; margin: 0 0 0.25rem; }
.events-network-wrap {
  border: 1px solid var(--line-gray); border-radius: var(--radius); background: var(--neutral-white);
  padding: 0.5rem; margin-top: 0.5rem;
}
.events-network { display: block; width: 100%; height: auto; }
.events-network-edge { stroke: var(--line-gray); stroke-width: 1; }
.events-network-edge--root-hub { stroke: var(--dark-blue); stroke-width: 2; opacity: 0.55; }
.events-network-label {
  font-family: var(--font-sans); font-weight: 800; font-size: 13px; fill: var(--neutral-ink);
  pointer-events: none;
}
.events-network-node--root .events-network-label { font-size: 14px; fill: var(--dark-blue); }
.events-network-node--event circle { transition: stroke 0.15s ease, stroke-width 0.15s ease; cursor: pointer; }
.events-network-node--event:hover circle {
  stroke: var(--accent-orange); stroke-width: 3;
}
.events-network-node--hub circle, .events-network-node--root circle { stroke: var(--neutral-white); stroke-width: 2; }
.events-network-legend {
  display: flex; flex-wrap: wrap; gap: 0.9rem; margin-top: 0.9rem; justify-content: center;
}
.events-network-legend-item {
  display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.8rem; color: #4b5563;
}
.events-network-swatch { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }

/* Dashboard charts — categorical palette validated with scripts/validate_palette.js
   (dataviz skill): fixed hue order, never cycled/reassigned per filter. */
.viz-root {
  --series-1: #2a78d6; --series-2: #eb6834; --series-3: #1baf7a; --series-4: #eda100;
  --series-5: #e87ba4; --series-6: #008300; --series-7: #4a3aa7; --series-8: #e34948;
  --series-other: #9a9890;
}
.chart-card { background: var(--neutral-white); border: 1px solid var(--line-gray); border-radius: var(--radius); padding: 1.5rem; }
.chart-title { font-family: var(--font-sans); font-weight: 700; color: var(--dark-blue); font-size: 1rem; margin-bottom: 1rem; }

/* Horizontal bar chart */
.hbar-chart { display: flex; flex-direction: column; gap: 0.6rem; }
.hbar-row { display: grid; grid-template-columns: minmax(90px, 34%) 1fr auto; align-items: center; gap: 0.6rem; }
.hbar-label { font-size: 0.82rem; color: var(--neutral-ink); text-align: right; }
.hbar-track { background: var(--soft-gray); border-radius: 4px; height: 14px; position: relative; }
.hbar-fill {
  height: 100%; border-radius: 4px; background: var(--series-1);
  min-width: 4px; transition: filter 0.15s ease;
}
.hbar-row:hover .hbar-fill { filter: brightness(0.92); }
.hbar-value { font-size: 0.78rem; font-weight: 700; color: var(--dark-blue); min-width: 2.5em; font-variant-numeric: tabular-nums; }

/* Stacked bar chart (events by year) */
.stacked-chart-scroll { overflow-x: auto; padding-bottom: 0.5rem; }
.stacked-chart { display: flex; align-items: flex-end; gap: 1rem; min-width: max-content; height: 220px; padding: 0 0.5rem; }
.stacked-bar-col { display: flex; flex-direction: column; align-items: center; justify-content: flex-end; height: 100%; width: 56px; }
.stacked-bar-total { font-size: 0.75rem; font-weight: 700; color: var(--dark-blue); margin-bottom: 0.3rem; font-variant-numeric: tabular-nums; }
.stacked-bar-plot { height: 160px; width: 100%; display: flex; align-items: flex-end; }
.stacked-bar { display: flex; flex-direction: column-reverse; width: 100%; border-radius: 4px 4px 0 0; overflow: hidden; }
.stacked-segment { width: 100%; }
.stacked-segment + .stacked-segment { border-top: 2px solid var(--neutral-white); }
.stacked-bar-year { font-size: 0.78rem; font-weight: 600; color: var(--neutral-ink); margin-top: 0.5rem; }

/* Pie chart (conic-gradient, no JS) */
.pie-chart-row { display: flex; align-items: center; gap: 1.75rem; flex-wrap: wrap; }
.pie-chart { width: 170px; height: 170px; border-radius: 50%; flex-shrink: 0; }
.pie-legend { display: flex; flex-direction: column; gap: 0.55rem; flex: 1; min-width: 200px; }
.pie-legend-item { display: flex; align-items: center; gap: 0.55rem; font-size: 0.85rem; color: var(--neutral-ink); }
.pie-legend-swatch { width: 12px; height: 12px; border-radius: 3px; flex-shrink: 0; }
.pie-legend-label { flex: 1; }
.pie-legend-value { font-weight: 700; color: var(--dark-blue); font-variant-numeric: tabular-nums; }
.pie-legend-pct { color: var(--neutral-ink); font-size: 0.78rem; opacity: 0.7; min-width: 3.2em; text-align: right; font-variant-numeric: tabular-nums; }

/* Shared legend */
.chart-legend { display: flex; flex-wrap: wrap; gap: 0.5rem 1rem; margin-top: 1.25rem; }
.chart-legend-item { display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.78rem; color: var(--neutral-ink); }
.chart-legend-swatch { width: 10px; height: 10px; border-radius: 2px; flex-shrink: 0; }

.viz-series-1 { background: var(--series-1); }
.viz-series-2 { background: var(--series-2); }
.viz-series-3 { background: var(--series-3); }
.viz-series-4 { background: var(--series-4); }
.viz-series-5 { background: var(--series-5); }
.viz-series-6 { background: var(--series-6); }
.viz-series-7 { background: var(--series-7); }
.viz-series-8 { background: var(--series-8); }
.viz-series-0 { background: var(--series-other); }

.dashboard-note { font-size: 0.82rem; color: #4b5563; margin-top: 1rem; }

/* Utility */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.stack { display: flex; flex-direction: column; gap: 1rem; }
.divider { height: 1px; background: var(--line-gray); border: none; margin: 3rem 0; }
.small { font-size: 0.85rem; color: #4b5563; }

/* Events rail — floating sidebar of all events, wide screens only */
.events-rail {
  display: none;
}
@media (min-width: 1700px) {
  .events-rail {
    display: flex; flex-direction: column;
    position: fixed; top: 724px; right: 24px; z-index: 20;
    width: 230px; max-height: max(240px, calc(100vh - 748px));
    background: var(--neutral-white); border: 1px solid var(--line-gray); border-radius: var(--radius);
    box-shadow: var(--shadow);
  }
  .events-rail-header {
    padding: 0.9rem 1rem 0.7rem; border-bottom: 1px solid var(--line-gray); flex-shrink: 0;
  }
  .events-rail-title { font-weight: 800; font-size: 0.85rem; color: var(--dark-blue); }
  .events-rail-subtitle { font-size: 0.72rem; color: #4b5563; margin-top: 0.15rem; }
  .events-rail-list {
    list-style: none; margin: 0; padding: 0.4rem 0; overflow-y: auto;
  }
  .events-rail-list li { border-bottom: 1px solid var(--soft-gray); }
  .events-rail-list li:last-child { border-bottom: none; }
  .events-rail-list a {
    display: block; padding: 0.55rem 1rem; font-size: 0.8rem; line-height: 1.35;
    color: var(--neutral-ink); font-weight: 700;
  }
  .events-rail-list a:hover { background: var(--soft-gray); color: var(--ui-blue); text-decoration: none; }
  .events-rail-footer {
    padding: 0.6rem 1rem; border-top: 1px solid var(--line-gray); flex-shrink: 0;
  }
  .events-rail-footer a { font-size: 0.78rem; font-weight: 600; }
}

/* Brand guide (Resources page) */
.branding-dropdown { margin-top: 1.25rem; }
.branding-dropdown summary {
  cursor: pointer; list-style: none; display: inline-flex; align-items: center; gap: 0.5rem;
  font-weight: 700; font-size: 0.95rem; color: var(--ui-blue);
  background: var(--soft-gray); border: 1px solid var(--line-gray); border-radius: 999px;
  padding: 0.55rem 1.1rem;
}
.branding-dropdown summary::-webkit-details-marker { display: none; }
.branding-dropdown summary:hover { background: var(--support-sky); }
.branding-dropdown summary::after {
  content: '▾'; font-size: 1rem; line-height: 1; transition: transform 0.2s ease;
}
.branding-dropdown[open] summary::after { transform: rotate(180deg); }
.branding-dropdown-body { margin-top: 1.5rem; }
.branding-logo-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1.25rem;
}
.branding-logo-card {
  border: 1px solid var(--line-gray); border-radius: var(--radius); overflow: hidden;
  background: var(--neutral-white);
}
.branding-logo-preview {
  display: flex; align-items: center; justify-content: center; height: 120px;
  background: var(--neutral-white); padding: 1rem; border-bottom: 1px solid var(--line-gray);
}
.branding-logo-preview img { max-width: 100%; max-height: 100%; }
.branding-logo-preview--dark { background: var(--dark-blue); }
.branding-logo-info { padding: 0.85rem 1rem; }
.branding-logo-name { display: block; font-weight: 700; font-size: 0.88rem; color: var(--neutral-ink); margin-bottom: 0.6rem; }
.branding-logo-downloads { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.branding-download-btn {
  display: inline-flex; align-items: center; gap: 0.35rem; font-size: 0.75rem; font-weight: 600;
  color: var(--ui-blue); background: var(--soft-gray); border: 1px solid var(--line-gray);
  border-radius: 6px; padding: 0.3rem 0.6rem;
}
.branding-download-btn:hover { background: var(--support-sky); text-decoration: none; }
.branding-colors-heading { margin-top: 2rem; }
.branding-color-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 1rem; margin-top: 1rem;
}
.branding-color-swatch {
  border: 1px solid var(--line-gray); border-radius: var(--radius); overflow: hidden; background: var(--neutral-white);
}
.branding-color-block { height: 56px; background: var(--swatch-color); }
.branding-color-meta { padding: 0.6rem 0.75rem; display: flex; flex-direction: column; gap: 0.15rem; }
.branding-color-name { font-size: 0.82rem; font-weight: 600; color: var(--neutral-ink); }
.branding-color-hex { font-family: Liberation Mono, Consolas, monospace; font-size: 0.78rem; color: #4b5563; }