:root {
  --ink: #123043;
  --muted: #5c7180;
  --line: #7da5b9;
  --soft: rgba(237, 247, 251, 0.70);
  --node: rgba(231, 244, 250, 0.84);
  --node-2: rgba(217, 236, 245, 0.88);
  --panel: rgba(255, 255, 255, 0.72);
  --accent: #1677a3;
  --accent-soft: rgba(22, 119, 163, 0.12);
  --shadow: 0 24px 70px rgba(18, 48, 67, 0.16);
  --glass-border: rgba(182, 204, 216, 0.74);
}

* { box-sizing: border-box; }

html { min-height: 100%; background: #f7fbfd; }

body {
  min-height: 100vh;
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: transparent;
  position: relative;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  background-image: url("img/awe_background.png");
  background-size: cover;
  background-position: center top;
  background-repeat: no-repeat;
  pointer-events: none;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(90deg, rgba(255,255,255,0.76) 0%, rgba(255,255,255,0.52) 42%, rgba(255,255,255,0.22) 100%),
    linear-gradient(180deg, rgba(247,251,253,0.10) 0%, rgba(247,251,253,0.34) 72%, rgba(247,251,253,0.62) 100%);
  pointer-events: none;
}

.site-header, .layout {
  position: relative;
  z-index: 2;
}

.site-header {
  max-width: 1280px;
  margin: 0 auto;
  padding: 38px 24px 16px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 28px;
}

.header-logo {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  line-height: 0;
  padding-top: 6px;
}

.header-logo img { height: 72px; width: auto; transition: transform .2s ease; }
.header-logo:hover img, .header-logo:focus-visible img { transform: scale(1.04); outline: none; }

.site-header > div {
  max-width: 820px;
  padding: 22px 24px;
  border-radius: 28px;
  background: rgba(255,255,255,0.46);
  border: 1px solid rgba(255,255,255,0.82);
  backdrop-filter: blur(8px);
}

.eyebrow {
  margin: 0 0 6px;
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
}

h1 {
  margin: 0;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1;
}

.lead {
  max-width: 760px;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.55;
}

.layout {
  max-width: 1280px;
  margin: 0 auto;
  padding: 20px 24px 30px;
  display: grid;
  grid-template-columns: minmax(680px, 1.35fr) minmax(330px, .65fr);
  gap: 24px;
  align-items: start;
}

.diagram-card, .info-panel {
  background: var(--panel);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.diagram-card { padding: 18px; }

.diagram-wrap {
  width: 100%;
  max-width: 980px;
  margin: 0 auto;
  display: grid;
  grid-template-rows: auto auto auto auto;
  gap: 18px;
}

.group-card, .reconstruction-card, .framework-shell {
  border: 1.8px solid var(--line);
  background: rgba(231, 244, 250, 0.62);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.65);
}

.group-card {
  border-radius: 28px;
  padding: 18px;
}

.inputs-group { background: rgba(237, 247, 251, 0.66); }
.applications-group { background: rgba(237, 247, 251, 0.66); }

.reconstruction-card {
  border-radius: 28px;
  padding: 18px;
  background: rgba(241, 249, 252, 0.66);
}

.framework-shell {
  border-radius: 54px;
  padding: 22px 26px 26px;
  background: rgba(231, 244, 250, 0.66);
}

.group-title, .section-title, .shell-title {
  display: block;
  width: 100%;
  border: 0;
  background: transparent;
  color: var(--ink);
  font: inherit;
  cursor: pointer;
  text-align: center;
  border-radius: 18px;
  padding: 8px 10px 12px;
  transition: background .16s ease, color .16s ease;
}

.group-title, .section-title {
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: 12px;
  font-weight: 800;
  color: var(--accent);
}

.shell-title strong {
  display: block;
  font-size: 22px;
  line-height: 1.1;
}

.shell-title span {
  display: block;
  margin-top: 4px;
  font-size: 15px;
  color: var(--muted);
}

.node-grid {
  display: grid;
  gap: 14px;
}

.node-grid-inputs { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.node-grid-reconstruction { grid-template-columns: 1.1fr .9fr; max-width: 520px; margin: 0 auto; }
.node-grid-apps { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.framework-grid {
  display: grid;
  gap: 16px;
  margin-top: 4px;
}

.model-row {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) 140px minmax(180px, 1fr);
  align-items: center;
  gap: 14px;
}

.support-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.node {
  min-height: 78px;
  border: 1.6px solid var(--line);
  border-radius: 12px;
  background: linear-gradient(180deg, var(--node), var(--node-2));
  color: var(--ink);
  box-shadow: 0 6px 20px rgba(18, 48, 67, 0.06);
  cursor: pointer;
  font: inherit;
  font-size: 15px;
  line-height: 1.18;
  text-align: center;
  padding: 14px 12px;
  transition: transform .16s ease, border-color .16s ease, box-shadow .16s ease, background .16s ease;
}

.node span { font-size: 13px; color: var(--muted); }
.node-emphasis { min-height: 96px; font-size: 17px; }
.wide { width: 100%; }

.bridge-arrow {
  min-height: 60px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 9px;
  text-align: center;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 13px;
  line-height: 1.3;
  cursor: pointer;
  padding: 4px;
  border-radius: 14px;
  transition: background .16s ease, color .16s ease;
}

.bridge-arrow-label { display: block; }
.bridge-sub { color: var(--accent); }

.bridge-arrow-line {
  position: relative;
  width: 100%;
  max-width: 120px;
  height: 2px;
  background: var(--accent);
}

.bridge-arrow-line::after {
  content: "";
  position: absolute;
  right: -1px;
  top: 50%;
  transform: translateY(-50%);
  border-left: 10px solid var(--accent);
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
}

.bridge-arrow:hover, .bridge-arrow:focus-visible, .bridge-arrow.active {
  background: var(--accent-soft);
  color: var(--ink);
  outline: none;
}

.node:hover, .node:focus-visible, .node.active,
.group-title:hover, .group-title:focus-visible, .group-title.active,
.section-title:hover, .section-title:focus-visible, .section-title.active,
.shell-title:hover, .shell-title:focus-visible, .shell-title.active {
  transform: translateY(-1px);
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(22, 119, 163, 0.09), 0 12px 24px rgba(18, 48, 67, 0.12);
  outline: none;
}

.group-title:hover, .group-title:focus-visible, .group-title.active,
.section-title:hover, .section-title:focus-visible, .section-title.active,
.shell-title:hover, .shell-title:focus-visible, .shell-title.active {
  background: var(--accent-soft);
  box-shadow: none;
  transform: none;
}

.hint {
  margin: 14px 6px 2px;
  color: var(--muted);
  font-size: 14px;
}

.info-panel {
  padding: 26px;
  position: sticky;
  top: 20px;
}

.panel-kicker {
  margin: 0 0 10px;
  color: var(--accent);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.info-panel h2 {
  margin: 0 0 14px;
  font-size: 30px;
  line-height: 1.08;
}

.info-panel p {
  line-height: 1.6;
  color: var(--muted);
}

.info-panel ul {
  margin: 18px 0;
  padding-left: 20px;
}

.info-panel li { margin: 8px 0; }

.panel-figure {
  margin: 22px 0 0;
  padding: 12px;
  background: var(--soft);
  border-radius: 18px;
  border: 1px solid var(--line);
}

.panel-figure img {
  display: block;
  width: 100%;
  max-height: 320px;
  object-fit: contain;
  border-radius: 12px;
  background: white;
  padding: 6px;
}

.panel-figure figcaption {
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
}

.panel-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.panel-actions a {
  display: inline-flex;
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--accent);
  color: white;
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
}

.references {
  max-width: 1280px;
  margin: 0 auto 44px;
  padding: 26px 28px;
  position: relative;
  z-index: 2;
  background: var(--panel);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.references-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.references h2 {
  margin: 0 0 6px;
  font-size: 22px;
}

.ref-intro {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 14px;
}

.ref-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.ref-list li {
  padding-left: 14px;
  border-left: 3px solid var(--line);
}

.ref-list a {
  color: var(--accent);
  font-weight: 700;
  text-decoration: none;
  line-height: 1.35;
}

.ref-list a:hover { text-decoration: underline; }

.ref-list span {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.funding {
  max-width: 1280px;
  margin: 0 auto 24px;
  padding: 26px 32px;
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
  background: var(--panel);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.funding-logos {
  display: flex;
  align-items: center;
  gap: 30px;
  flex: 0 0 auto;
  flex-wrap: wrap;
}

.funding-logo { display: inline-flex; line-height: 0; }
.funding-meridional img { height: 38px; width: auto; transition: transform .2s ease; }
.funding-meridional:hover img, .funding-meridional:focus-visible img { transform: scale(1.04); outline: none; }
.funding-eu img { height: 52px; width: auto; }

.funding-text {
  flex: 1 1 320px;
  margin: 0;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.6;
}

.funding-text a { color: var(--accent); font-weight: 700; text-decoration: none; }
.funding-text a:hover { text-decoration: underline; }

.site-footer {
  max-width: 1280px;
  margin: 0 auto 48px;
  padding: 22px 28px;
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 22px;
  background: var(--panel);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.footer-author {
  margin: 0 0 6px !important;
  color: var(--ink) !important;
  font-weight: 600;
  font-size: 15px !important;
}

.footer-author strong { color: var(--accent); }

.footer-ack {
  margin: 0 0 8px !important;
  font-size: 13px !important;
}

.footer-ack strong { color: var(--ink); }

.license-badge {
  flex: 0 0 auto;
  display: inline-flex;
  line-height: 0;
}

.license-pill {
  display: inline-block;
  padding: 6px 12px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  color: var(--accent);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.license-badge:hover .license-pill,
.license-badge:focus-visible .license-pill {
  transform: scale(1.04);
  background: var(--accent);
  color: #fff;
  outline: none;
}

.license-text p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.license-text a {
  color: var(--accent);
  font-weight: 700;
  text-decoration: none;
}

.license-text a:hover { text-decoration: underline; }

.footer-copy {
  margin-top: 6px !important;
  font-size: 13px;
}

.footer-partner {
  flex: 0 0 auto;
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  line-height: 0;
}

.footer-partner img { height: 64px; width: auto; transition: transform .2s ease; }
.footer-partner:hover img, .footer-partner:focus-visible img { transform: scale(1.04); outline: none; }

@media (max-width: 1060px) {
  body::after {
    background: rgba(255,255,255,0.58);
  }
  .layout { grid-template-columns: 1fr; }
  .info-panel { position: static; }
  .references-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
}

@media (max-width: 800px) {
  .site-header { padding-top: 20px; flex-direction: column; align-items: flex-start; gap: 16px; }
  .site-header > div { padding: 18px; }
  .header-logo { padding-top: 0; }
  .node-grid-inputs, .node-grid-apps, .support-row, .model-row, .node-grid-reconstruction {
    grid-template-columns: 1fr;
  }
  .references-grid { grid-template-columns: 1fr; }
  .framework-shell { border-radius: 34px; padding: 18px; }
  .bridge-arrow { min-height: 42px; padding: 8px 4px; }
  .bridge-arrow-line { width: 38px; transform: rotate(90deg); }
  .funding { flex-direction: column; text-align: center; gap: 18px; }
  .funding-logos { justify-content: center; gap: 24px; }
  .site-footer { flex-direction: column; text-align: center; gap: 16px; }
}