:root {
  --navy: #0a2540;
  --navy-light: #123a63;
  --emerald: #046a38;
  --emerald-light: #058a49;
  --gold: #c9a227;
  --white: #ffffff;
  --gray-50: #f7f8fa;
  --gray-100: #eef1f5;
  --gray-300: #cbd3dd;
  --gray-600: #5a6472;
  --gray-900: #1b2430;
  --radius: 8px;
  --shadow: 0 2px 10px rgba(10, 37, 64, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Segoe UI', Calibri, Lato, Arial, sans-serif;
  color: var(--gray-900);
  background: var(--gray-50);
  line-height: 1.6;
}

h1, h2, h3, h4 {
  font-family: Montserrat, 'Segoe UI', Arial, sans-serif;
  color: var(--navy);
  line-height: 1.25;
}

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

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  background: var(--navy);
  border-bottom: 3px solid var(--gold);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 14px 20px;
}
.header-top-bar {
  background: var(--navy-light);
  color: var(--gray-100);
  font-size: 0.85rem;
  padding: 6px 0;
}
.header-top-bar .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.header-top-bar a { color: var(--gold); }
.logo {
  color: var(--white);
  font-weight: 700;
  font-size: 1.25rem;
  font-family: Montserrat, sans-serif;
}
.logo:hover { text-decoration: none; color: var(--gold); }
.logo small { display: block; font-size: 0.7rem; font-weight: 400; color: var(--gray-300); }

.main-nav { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.main-nav a { color: var(--gray-100); font-weight: 500; }
.main-nav a:hover { color: var(--gold); }
.main-nav .btn-small { background: var(--emerald); color: var(--white); padding: 8px 14px; border-radius: var(--radius); }
.main-nav .btn-small:hover { background: var(--emerald-light); text-decoration: none; }

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  color: var(--white);
  padding: 70px 0;
  text-align: center;
}
.hero h1 { color: var(--white); font-size: 2.3rem; margin-bottom: 12px; }
.hero p { font-size: 1.15rem; color: var(--gray-100); max-width: 700px; margin: 0 auto 20px; }
.hero .motto { color: var(--gold); font-style: italic; font-size: 1.1rem; margin-top: 6px; }

.section { padding: 50px 0; }
.section-alt { background: var(--white); }
.section-title { text-align: center; margin-bottom: 10px; }
.section-subtitle { text-align: center; color: var(--gray-600); max-width: 700px; margin: 0 auto 36px; }

/* Cards grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 22px;
  margin-top: 24px;
}
.card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
  border-top: 4px solid var(--emerald);
  transition: transform 0.15s ease;
}
.card:hover { transform: translateY(-3px); }
.card h3 { margin: 0 0 6px; font-size: 1.15rem; }
.card .sector-tag {
  display: inline-block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--gray-100);
  color: var(--navy);
  padding: 3px 10px;
  border-radius: 12px;
  margin-bottom: 10px;
}
.card p { color: var(--gray-600); font-size: 0.95rem; margin: 8px 0 12px; }
.card .card-link { font-weight: 600; }

/* Buttons */
.btn {
  display: inline-block;
  background: var(--emerald);
  color: var(--white) !important;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-weight: 600;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}
.btn:hover { background: var(--emerald-light); text-decoration: none; }
.btn-secondary { background: transparent; color: var(--navy) !important; border: 2px solid var(--navy); }
.btn-secondary:hover { background: var(--navy); color: var(--white) !important; }
.btn-gold { background: var(--gold); color: var(--navy) !important; }
.btn-danger { background: #b3261e; }
.btn-small { display: inline-block; padding: 8px 16px; border-radius: var(--radius); font-size: 0.9rem; font-weight: 600; border: 1px solid var(--gray-300); background: var(--white); color: var(--navy) !important; cursor: pointer; }
.btn-small:hover { border-color: var(--emerald); text-decoration: none; }
.link-button { background: none; border: none; padding: 0; color: inherit; font: inherit; cursor: pointer; }

/* Forms */
form label { display: block; margin-bottom: 16px; font-weight: 600; color: var(--gray-900); }
form input[type=text], form input[type=email], form input[type=password], form input[type=number], form input[type=tel], form select, form textarea {
  width: 100%;
  padding: 10px 12px;
  margin-top: 6px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: inherit;
}
form textarea { min-height: 140px; resize: vertical; }
.form-error, .install-error {
  background: #fdecea;
  color: #a12a22;
  border: 1px solid #f3c6c1;
  padding: 12px 16px;
  border-radius: var(--radius);
  margin-bottom: 18px;
}
.form-success {
  background: #e6f4ea;
  color: #1a5c33;
  border: 1px solid #b7ddc2;
  padding: 12px 16px;
  border-radius: var(--radius);
  margin-bottom: 18px;
}
.auth-card {
  max-width: 420px;
  margin: 60px auto;
  background: var(--white);
  padding: 36px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.auth-card h1 { text-align: center; }

/* Content pages */
.page-header {
  background: var(--navy);
  color: var(--white);
  padding: 44px 0;
  text-align: center;
}
.page-header h1 { color: var(--white); margin: 0; }
.page-header p { color: var(--gray-300); margin: 8px 0 0; }
.prose { max-width: 820px; margin: 0 auto; }
.prose h2, .prose h3 { margin-top: 28px; }
.prose ul { padding-left: 22px; }
.prose li { margin-bottom: 6px; }
.hero-image { width: 100%; max-height: 360px; object-fit: cover; border-radius: var(--radius); margin-bottom: 28px; }

/* Leadership */
.leader-card { display: flex; gap: 24px; background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; margin-bottom: 24px; align-items: flex-start; }
.leader-photo { width: 140px; height: 140px; border-radius: 50%; object-fit: cover; flex-shrink: 0; border: 3px solid var(--gold); }
.leader-photo.placeholder { display: flex; align-items: center; justify-content: center; background: var(--gray-100); color: var(--gray-600); font-size: 2rem; }
.leader-card h3 { margin: 0 0 4px; }
.leader-title { color: var(--emerald); font-weight: 600; margin: 0 0 10px; }

/* Investment */
.invest-card { background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; border-left: 5px solid var(--gold); margin-bottom: 18px; }
.invest-card h3 { margin: 0 0 4px; }
.invest-amount { color: var(--emerald); font-weight: 700; font-size: 1.1rem; margin: 4px 0 10px; }

/* Research centres */
.centre-list { list-style: none; padding: 0; }
.centre-list li { background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px 22px; margin-bottom: 14px; }
.centre-list h4 { margin: 0 0 6px; color: var(--navy); }
.centre-list p { margin: 0; color: var(--gray-600); font-size: 0.92rem; }

/* Gallery */
.gallery-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; }
.gallery-grid img { width: 100%; height: 180px; object-fit: cover; border-radius: var(--radius); box-shadow: var(--shadow); }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contact-info-box { background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow); padding: 28px; }
.contact-info-box p { margin: 6px 0; }

/* Footer */
.site-footer { background: var(--navy); color: var(--gray-300); padding: 26px 0; margin-top: 40px; text-align: center; font-size: 0.9rem; }
.site-footer a { color: var(--gold); }

/* Admin */
.admin-body { background: var(--gray-50); }
.admin-shell { display: flex; min-height: 100vh; }
.admin-sidebar { width: 230px; background: var(--navy); color: var(--white); flex-shrink: 0; padding: 24px 0; }
.admin-sidebar h2 { color: var(--white); font-size: 1.1rem; padding: 0 22px 18px; margin: 0; border-bottom: 1px solid var(--navy-light); }
.admin-sidebar nav { display: flex; flex-direction: column; margin-top: 10px; }
.admin-sidebar nav a { color: var(--gray-300); padding: 11px 22px; }
.admin-sidebar nav a:hover, .admin-sidebar nav a.active { background: var(--navy-light); color: var(--white); text-decoration: none; }
.admin-main { flex: 1; padding: 30px; }
.admin-topbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 18px; margin-bottom: 30px; }
.stat-card { background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px; text-align: center; }
.stat-card .num { font-size: 2rem; font-weight: 700; color: var(--emerald); }
.stat-card .label { color: var(--gray-600); font-size: 0.9rem; }
table.admin-table { width: 100%; border-collapse: collapse; background: var(--white); box-shadow: var(--shadow); border-radius: var(--radius); overflow: hidden; }
table.admin-table th, table.admin-table td { padding: 12px 16px; border-bottom: 1px solid var(--gray-100); text-align: left; }
table.admin-table th { background: var(--gray-100); color: var(--navy); font-size: 0.85rem; text-transform: uppercase; }
table.admin-table tr:last-child td { border-bottom: none; }
.badge { display: inline-block; padding: 3px 10px; border-radius: 12px; font-size: 0.78rem; font-weight: 600; }
.badge-yes { background: #e6f4ea; color: #1a5c33; }
.badge-no { background: #fdecea; color: #a12a22; }
.thumb-sm { width: 50px; height: 50px; object-fit: cover; border-radius: 6px; }
.admin-panel { background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow); padding: 26px; margin-bottom: 24px; }
.inline-form { display: inline; }
.actions-row { display: flex; gap: 8px; }
.current-image { max-width: 220px; border-radius: var(--radius); margin: 10px 0; display: block; }

/* Misc */
.empty-state { text-align: center; color: var(--gray-600); padding: 40px 0; }
.centered-page { text-align: center; padding: 80px 0; }

/* Mobile */
@media (max-width: 720px) {
  .contact-grid { grid-template-columns: 1fr; }
  .admin-shell { flex-direction: column; }
  .admin-sidebar { width: 100%; }
  .leader-card { flex-direction: column; align-items: center; text-align: center; }
}