/* CoSE / Cayman Responsive Theme (No Sidebar) */
:root {
  --primary-color: #0d3b66;
  --secondary-color: #008080;
  --accent-color: #e74c3c;
  --accent-gold: #f39c12;
  --text-color: #2c3e50;
  --text-muted: #606f7b;
  --bg-color: #ffffff;
  --bg-alt: #f8fafc;
  --border-color: #e2e8f0;
  --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --hero-gradient: linear-gradient(135deg, #0d3b66 0%, #157878 50%, #008080 100%);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "Open Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text-color);
  background-color: var(--bg-color);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

/* Hero Header */
.page-header {
  background: var(--hero-gradient);
  color: #ffffff;
  text-align: center;
  padding: 4rem 1.5rem 3.5rem;
  box-shadow: inset 0 -3px 8px rgba(0,0,0,0.2);
}

.page-header .project-title {
  font-size: 2.4rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 1rem;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  letter-spacing: -0.02em;
}

.page-header .project-tagline {
  font-size: 1.2rem;
  font-weight: 400;
  opacity: 0.92;
  margin-bottom: 2rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.5;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.8rem;
  margin-top: 1.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.65rem 1.35rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: #ffffff;
  background-color: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 6px;
  text-decoration: none;
  transition: all 0.2s ease-in-out;
}

.btn:hover {
  background-color: #ffffff;
  color: var(--primary-color);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transform: translateY(-1px);
}

.btn-primary {
  background-color: #e74c3c;
  border-color: #e74c3c;
  color: #ffffff;
}

.btn-primary:hover {
  background-color: #c0392b;
  color: #ffffff;
}

/* Metric Strip */
.metric-strip {
  background-color: var(--bg-alt);
  border-bottom: 1px solid var(--border-color);
  padding: 1.8rem 1rem;
}

.metric-container {
  max-width: 1060px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 1.2rem;
  text-align: center;
}

.metric-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.2rem 1rem;
  box-shadow: var(--card-shadow);
  transition: transform 0.2s ease;
}

.metric-card:hover {
  transform: translateY(-2px);
}

.metric-value {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--secondary-color);
  margin-bottom: 0.3rem;
  line-height: 1.1;
}

.metric-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Main Container (Single-column layout, NO sidebar) */
.main-content {
  max-width: 1060px;
  margin: 0 auto;
  padding: 3rem 1.5rem 5rem;
}

/* Typography & Headings */
h2.section-heading {
  font-size: 1.85rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-top: 3rem;
  margin-bottom: 1.2rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #e2e8f0;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

h3.sub-heading {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--secondary-color);
  margin-top: 1.8rem;
  margin-bottom: 0.8rem;
}

p {
  margin-bottom: 1.2rem;
  font-size: 1.02rem;
  color: #334155;
}

/* Callout Alert */
.alert-box {
  background-color: #ecf9f6;
  border-left: 4px solid var(--secondary-color);
  padding: 1.2rem 1.5rem;
  border-radius: 0 8px 8px 0;
  margin: 1.8rem 0;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.alert-box strong {
  color: var(--secondary-color);
  display: block;
  margin-bottom: 0.4rem;
  font-size: 1.05rem;
}

/* Workpackage Cards */
.wp-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.wp-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 1.6rem;
  box-shadow: var(--card-shadow);
  display: flex;
  flex-direction: column;
  transition: all 0.25s ease;
}

.wp-card:hover {
  border-color: var(--secondary-color);
  box-shadow: 0 8px 16px rgba(0,0,0,0.08);
  transform: translateY(-3px);
}

.wp-badge {
  display: inline-block;
  align-self: flex-start;
  padding: 0.25rem 0.75rem;
  background-color: #e6fffa;
  color: var(--secondary-color);
  border: 1px solid #b2f5ea;
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}

.wp-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 0.6rem;
  line-height: 1.35;
}

.wp-desc {
  font-size: 0.92rem;
  color: #475569;
  flex-grow: 1;
  margin-bottom: 1rem;
}

.wp-stats {
  border-top: 1px solid #f1f5f9;
  padding-top: 0.8rem;
  font-size: 0.85rem;
  color: #64748b;
  font-weight: 500;
}

/* Figures Section */
.figures-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.figure-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--card-shadow);
  display: flex;
  flex-direction: column;
}

.figure-card img {
  width: 100%;
  height: 240px;
  object-fit: contain;
  background-color: #f8fafc;
  cursor: pointer;
  border-bottom: 1px solid var(--border-color);
  transition: transform 0.2s ease;
}

.figure-card img:hover {
  transform: scale(1.02);
}

.figure-body {
  padding: 1.2rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.figure-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 0.4rem;
}

.figure-caption {
  font-size: 0.88rem;
  color: #64748b;
  line-height: 1.45;
  margin-bottom: 1rem;
  flex-grow: 1;
}

.figure-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid #f1f5f9;
  padding-top: 0.6rem;
}

.figure-footer a {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--secondary-color);
  text-decoration: none;
}

.figure-footer a:hover {
  text-decoration: underline;
}

/* Data & Notebook Tables */
.table-container {
  overflow-x: auto;
  margin: 1.8rem 0;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  box-shadow: var(--card-shadow);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  background: #ffffff;
}

th {
  background-color: #f1f5f9;
  color: var(--primary-color);
  font-weight: 700;
  text-align: left;
  padding: 0.85rem 1rem;
  border-bottom: 2px solid var(--border-color);
}

td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
  color: #334155;
}

tr:last-child td {
  border-bottom: none;
}

tr:hover td {
  background-color: #f8fafc;
}

/* Modal Lightbox */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  padding-top: 40px;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0, 0, 0, 0.88);
}

.modal-content {
  margin: auto;
  display: block;
  max-width: 90%;
  max-height: 85vh;
  border-radius: 6px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.modal-caption {
  margin: auto;
  display: block;
  width: 80%;
  max-width: 900px;
  text-align: center;
  color: #f1f5f9;
  padding: 1rem 0;
  font-size: 1rem;
  font-weight: 500;
}

.modal-close {
  position: absolute;
  top: 15px;
  right: 35px;
  color: #f1f1f1;
  font-size: 40px;
  font-weight: bold;
  cursor: pointer;
}

.modal-close:hover {
  color: var(--accent-gold);
}

/* Footer */
footer.site-footer {
  background-color: var(--primary-color);
  color: #cbd5e1;
  padding: 3rem 1.5rem;
  font-size: 0.9rem;
  border-top: 3px solid var(--secondary-color);
}

.footer-content {
  max-width: 1060px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2rem;
}

.footer-col {
  flex: 1 1 280px;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 1.05rem;
  margin-bottom: 0.8rem;
  font-weight: 700;
}

.footer-col p {
  color: #94a3b8;
  font-size: 0.88rem;
}

.footer-col a {
  color: #38bdf8;
  text-decoration: none;
}

.footer-col a:hover {
  text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
  .page-header .project-title {
    font-size: 1.8rem;
  }
  .page-header .project-tagline {
    font-size: 1rem;
  }
  .main-content {
    padding: 2rem 1rem 3rem;
  }
}