:root {
  --primary: #1b5e20;
  --primary-light: #4caf50;
  --primary-dark: #003300;
  --surface: #f4f7f4;
  --card: #ffffff;
  --text: #1a2e1a;
  --text-muted: #5a6b5a;
  --border: #d4e4d4;
  --gold: #d4af37;
  --radius: 14px;
  --font: 'DM Sans', system-ui, sans-serif;
  --shadow: 0 12px 40px rgba(27, 94, 32, 0.1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.55;
  color: var(--text);
  background: var(--surface);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ——— Header ——— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 14px 24px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--primary-dark);
  font-weight: 700;
  font-size: 1.1rem;
}

.brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  color: #fff;
  font-size: 18px;
}

.site-nav {
  display: flex;
  gap: 20px;
  flex: 1;
}

.site-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
}

.site-nav a:hover {
  color: var(--primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.lang-select {
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--text);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: 10px;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  color: #fff;
  box-shadow: 0 4px 14px rgba(27, 94, 32, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-ghost {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--border);
}

.btn-admin {
  background: var(--primary-dark);
  color: #fff;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1.05rem;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border: none;
  background: transparent;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 12px;
  padding: 16px 24px;
  background: #fff;
  border-bottom: 1px solid var(--border);
}

.mobile-menu a {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
}

.mobile-menu:not(.hidden) {
  display: flex;
}

/* ——— Hero ——— */
.hero {
  padding: 56px 24px 72px;
  background: linear-gradient(165deg, #e8f5e9 0%, var(--surface) 45%, #fff 100%);
}

.hero-inner {
  max-width: 720px;
  margin: 0 auto 40px;
  text-align: center;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 12px;
  padding: 6px 14px;
  background: rgba(27, 94, 32, 0.1);
  color: var(--primary);
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
}

.hero h1 {
  margin: 0 0 16px;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  line-height: 1.2;
  color: var(--primary-dark);
}

.hero-lead {
  margin: 0 0 28px;
  color: var(--text-muted);
  font-size: 1.1rem;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.hero-cards {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  max-width: 560px;
  margin: 0 auto;
}

.hero-stat {
  flex: 1;
  min-width: 100px;
  padding: 20px;
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
  border: 1px solid var(--border);
}

.hero-stat span {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
}

.hero-stat small {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ——— Sections ——— */
.section {
  max-width: 1000px;
  margin: 0 auto;
  padding: 56px 24px;
}

.section-alt {
  background: #fff;
  max-width: none;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-alt > h2,
.section-alt > .section-intro,
.section-alt > .package-grid {
  max-width: 1000px;
  margin-left: auto;
  margin-right: auto;
}

.section h2 {
  margin: 0 0 12px;
  font-size: 1.75rem;
  color: var(--primary-dark);
  text-align: center;
}

.section-intro {
  text-align: center;
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto 36px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.info-card {
  padding: 24px;
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.info-icon {
  font-size: 1.75rem;
  margin-bottom: 12px;
}

.info-card h3 {
  margin: 0 0 8px;
  font-size: 1.1rem;
  color: var(--primary-dark);
}

.info-card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* ——— Packages ——— */
.package-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

.package-card {
  position: relative;
  padding: 28px 22px;
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  text-align: center;
}

.package-card.featured {
  border-color: var(--primary-light);
  box-shadow: var(--shadow);
}

.package-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 4px 10px;
  background: var(--gold);
  color: var(--primary-dark);
  font-size: 0.7rem;
  font-weight: 700;
  border-radius: 6px;
}

.package-price {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
}

.package-card h3 {
  margin: 8px 0;
  color: var(--primary-dark);
}

.package-card p {
  margin: 0 0 12px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.package-bonus {
  display: inline-block;
  padding: 6px 12px;
  background: rgba(76, 175, 80, 0.15);
  color: var(--primary);
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
}

/* ——— Steps ——— */
.steps {
  list-style: none;
  margin: 0 0 40px;
  padding: 0;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.steps li {
  display: flex;
  gap: 20px;
  margin-bottom: 24px;
  padding: 20px;
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.step-num {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  border-radius: 50%;
}

.steps h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
  color: var(--primary-dark);
}

.steps p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.binary-table-wrap {
  max-width: 360px;
  margin: 0 auto;
  text-align: center;
}

.binary-table-wrap h3 {
  margin-bottom: 16px;
  color: var(--primary-dark);
}

.binary-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}

.binary-table th,
.binary-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}

.binary-table th {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
}

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

/* ——— CTA ——— */
.cta-section {
  padding-bottom: 72px;
}

.cta-box {
  text-align: center;
  padding: 48px 32px;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
  border-radius: 20px;
  box-shadow: var(--shadow);
}

.cta-box h2 {
  color: #fff;
  margin-bottom: 12px;
}

.cta-box p {
  margin: 0 0 24px;
  opacity: 0.9;
}

.cta-box .btn-primary {
  background: #fff;
  color: var(--primary-dark);
  box-shadow: none;
}

/* ——— Footer ——— */
.site-footer {
  padding: 28px 24px;
  text-align: center;
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.9rem;
}

.footer-links {
  margin-top: 8px;
}

.footer-links a {
  color: var(--primary-light);
  text-decoration: none;
}

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

@media (max-width: 768px) {
  .site-nav,
  .header-actions .btn-ghost,
  .header-actions .btn-primary {
    display: none;
  }

  .header-actions .lang-select,
  .header-actions .btn-admin {
    display: none;
  }

  .menu-toggle {
    display: flex;
    margin-left: auto;
  }

  .header-actions {
    margin-left: auto;
  }
}