:root {
  --color-primary: #0f5132;
  --color-primary-light: #19774b;
  --color-bg: #ffffff;
  --color-surface: #ffffff;
  --color-muted: #4c5851;
  --color-accent: #e9f7ef;
  --color-border: #c6dfd0;
  --font-base: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --max-width: 1100px;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --radius-sm: 0.5rem;
  --radius-full: 999px;
  --shadow-card: 0 10px 30px rgba(15, 81, 50, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-base);
  line-height: 1.6;
  color: #0d2016;
  background: var(--color-bg);
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover,
a:focus-visible {
  text-decoration: underline;
}

a:focus-visible,
button:focus-visible,
.btn:focus-visible {
  outline: 3px solid var(--color-primary-light);
  outline-offset: 2px;
}

img {
  max-width: 100%;
  display: block;
  border-radius: var(--radius-sm);
}

.container {
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
}

.site-header {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) 0;
  gap: var(--space-sm);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.brand-name {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-primary);
}

.nav-list {
  list-style: none;
  display: flex;
  gap: var(--space-sm);
  margin: 0;
  padding: 0;
}

.hero {
  background: var(--color-accent);
  padding: var(--space-xl) 0 var(--space-lg);
}

.hero-grid {
  display: grid;
  gap: var(--space-lg);
}

.hero-card {
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  padding: var(--space-lg);
  box-shadow: var(--shadow-card);
}

.hero-card ul {
  padding-left: 1.2rem;
}

.section {
  padding: var(--space-xl) 0;
}

.section-alt {
  background: #f6fbf8;
}

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

h1,
h2,
h3,
h4 {
  line-height: 1.25;
  color: var(--color-primary);
  margin-top: 0;
}

h1 { font-size: clamp(2rem, 5vw, 2.8rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2.2rem); }
h3 { font-size: 1.25rem; }
.lead { font-size: 1.1rem; color: var(--color-muted); }

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.75rem;
  font-size: 0.85rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.badge-primary {
  background: var(--color-primary);
  color: #fff;
}

.badge-light {
  background: var(--color-accent);
  color: var(--color-primary);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: #fff;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  border: 2px solid var(--color-primary);
  transition: background 0.2s ease, color 0.2s ease;
}

.btn:hover {
  background: var(--color-primary-light);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
}

.btn-outline:hover {
  background: rgba(15, 81, 50, 0.1);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.grid {
  display: grid;
  gap: var(--space-md);
}

.cards-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card {
  background: var(--color-surface);
  padding: var(--space-lg);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(15, 81, 50, 0.08);
}

.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: #fff;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 500px;
}

th,
td {
  padding: var(--space-sm);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

th {
  background: var(--color-accent);
  font-weight: 600;
}

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

.mentors-grid {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.mentor-card {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
}

.mentor-card img {
  width: 64px;
  height: 64px;
  object-fit: cover;
}

.site-footer {
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-lg) 0;
}

.footer-grid {
  display: grid;
  gap: var(--space-md);
}

.site-footer a {
  color: #fff;
}

.disclaimer {
  font-size: 0.95rem;
  margin: 0;
}

.copyright {
  margin: 0;
}

@media (min-width: 768px) {
  .hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
  }

  .footer-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}