:root {
  --color-cream: #faf6f0;
  --color-beige: #e8dfd3;
  --color-green: #7aab7a;
  --color-green-dark: #5a8f5a;
  --color-green-light: #d4e8d4;
  --color-text: #4a4540;
  --color-text-light: #7a756e;
  --color-white: #ffffff;
  --color-shadow: rgba(74, 69, 64, 0.1);
  --font-main: "Paperlogy";
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
}

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

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  color: var(--color-text);
  background: var(--color-cream);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

.container {
  width: 100%;
  max-width: 560px;
  margin: 0 auto;
  padding: 0 1rem;
}

.site-header {
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(232, 223, 211, 0.8);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.65rem 1rem;
  max-width: 1100px;
  margin: 0 auto;
}

.site-header__logo {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-green-dark);
}

.onglab-hero {
  text-align: center;
  padding: 2.5rem 0 1.5rem;
}

.onglab-hero__badge {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-green-dark);
  background: var(--color-white);
  border: 1px solid rgba(122, 171, 122, 0.25);
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}

.onglab-hero__title {
  font-size: clamp(1.5rem, 5vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 0.75rem;
}

.onglab-hero__desc {
  font-size: 0.95rem;
  color: var(--color-text-light);
  line-height: 1.8;
}

.onglab-card {
  background: var(--color-white);
  border: 1px solid rgba(232, 223, 211, 0.9);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.5rem;
  box-shadow: 0 4px 20px var(--color-shadow);
  margin-bottom: 1.25rem;
}

.onglab-actions {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-bottom: 1.25rem;
}

.onglab-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.85rem 1.25rem;
  border-radius: 999px;
  font: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
  border: none;
  cursor: pointer;
}

.onglab-btn--primary {
  background: var(--color-green);
  color: var(--color-white);
  box-shadow: 0 4px 16px rgba(122, 171, 122, 0.35);
}

.onglab-btn--primary:hover {
  background: var(--color-green-dark);
  transform: translateY(-1px);
}

.onglab-btn--secondary {
  background: var(--color-white);
  color: var(--color-green-dark);
  border: 1.5px solid var(--color-green);
}

.onglab-btn--secondary:hover {
  background: var(--color-green-light);
}

.onglab-notice {
  font-size: 0.82rem;
  color: var(--color-text-light);
  text-align: center;
  line-height: 1.6;
  padding: 0.75rem;
  background: rgba(212, 232, 212, 0.35);
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
}

.onglab-notice--warn {
  background: rgba(240, 232, 220, 0.8);
  color: var(--color-text);
}

.onglab-info {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.onglab-info__item {
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  font-size: 0.88rem;
}

.onglab-info__icon {
  flex-shrink: 0;
  font-size: 1.1rem;
}

.onglab-info__label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-text-light);
  margin-bottom: 0.1rem;
}

.onglab-info__value {
  font-weight: 500;
}

.onglab-info__value a {
  color: var(--color-green-dark);
  font-weight: 600;
}

.onglab-features {
  list-style: none;
  font-size: 0.85rem;
  color: var(--color-text-light);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-beige);
}

.onglab-features li::before {
  content: "✓ ";
  color: var(--color-green-dark);
  font-weight: 700;
}

.site-footer {
  text-align: center;
  padding: 2rem 1rem;
  font-size: 0.85rem;
  color: var(--color-text-light);
}

.site-footer a {
  color: var(--color-green-dark);
  font-weight: 600;
}