:root {
  --bg-site: #aac0a3;
  --brand-dark: #364e35;
  --brand-dark-hover: #263825;
  --black: #000000;
  --card-bg: #ffffff;
  --card-bg-subtle: #f4f8f3;
  --text-main: #364e35;
  --text-dark: #111827;
  --text-muted: #4a6749;
  --border-color: #92ab8b;
  --border-color-light: #c8d8c4;
  --font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-site);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 20px;
  flex: 1;
}

header {
  text-align: center;
  margin-bottom: 45px;
}

.brand-badge {
  display: inline-block;
  background: var(--brand-dark);
  color: #ffffff;
  padding: 6px 18px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 16px;
  box-shadow: 0 4px 12px rgba(54, 78, 53, 0.2);
}

h1 {
  font-size: 2.75rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--brand-dark);
  margin-bottom: 10px;
}

.subtitle {
  font-size: 1.15rem;
  color: var(--brand-dark);
  opacity: 0.9;
  font-weight: 500;
}

.hero-card {
  background: var(--card-bg);
  border: 2px solid var(--brand-dark);
  border-radius: 20px;
  padding: 40px;
  box-shadow: 0 15px 35px rgba(54, 78, 53, 0.15);
  margin-bottom: 40px;
  position: relative;
  overflow: hidden;
}

.version-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--card-bg-subtle);
  border: 1px solid var(--border-color);
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 0.9rem;
  color: var(--brand-dark);
  font-weight: 700;
  margin-bottom: 20px;
}

.btn-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  max-width: 360px;
  background: var(--black);
  color: #ffffff;
  padding: 16px 28px;
  border-radius: 12px;
  font-size: 1.1rem;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.2s ease-in-out;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
  margin-top: 15px;
}

.btn-download:hover {
  transform: translateY(-2px);
  background: var(--brand-dark);
  box-shadow: 0 8px 24px rgba(54, 78, 53, 0.4);
  color: #ffffff;
}

.meta-info {
  display: flex;
  gap: 20px;
  margin-top: 18px;
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
  flex-wrap: wrap;
}

.changelog-box {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color-light);
}

.changelog-box h3 {
  font-size: 1.15rem;
  margin-bottom: 12px;
  color: var(--brand-dark);
  font-weight: 700;
}

.changelog-content {
  color: var(--text-main);
  font-size: 0.98rem;
  white-space: pre-line;
  background: var(--card-bg-subtle);
  padding: 16px;
  border-radius: 10px;
  border: 1px solid var(--border-color-light);
}

.previous-section {
  margin-top: 40px;
}

.previous-section h2 {
  font-size: 1.5rem;
  margin-bottom: 20px;
  color: var(--brand-dark);
  font-weight: 800;
}

.previous-grid {
  display: grid;
  gap: 16px;
}

.previous-item {
  background: var(--card-bg);
  border: 1.5px solid var(--brand-dark);
  border-radius: 12px;
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  box-shadow: 0 4px 12px rgba(54, 78, 53, 0.08);
}

.previous-item-info {
  display: flex;
  flex-direction: column;
}

.previous-item-version {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--brand-dark);
}

.previous-item-date {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.btn-secondary-download {
  background: var(--brand-dark);
  border: 1px solid var(--brand-dark);
  color: #ffffff;
  padding: 9px 18px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-secondary-download:hover {
  background: var(--black);
  border-color: var(--black);
  color: #ffffff;
}

footer {
  text-align: center;
  padding: 30px;
  color: var(--brand-dark);
  font-size: 0.9rem;
  font-weight: 500;
  border-top: 1px solid var(--border-color);
  margin-top: 40px;
}

footer a {
  color: var(--black);
  font-weight: 700;
  text-decoration: underline;
}

/* Spinner loader */
.loader {
  display: inline-block;
  width: 22px;
  height: 22px;
  border: 3px solid rgba(255,255,255,.3);
  border-radius: 50%;
  border-top-color: #fff;
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}