:root {
  --accent: #0e7a5f;
  --accent-dark: #0a5c48;
  --ink: #1f2937;
  --muted: #6b7280;
  --line: #e5e7eb;
  --bg: #f8fafc;
  --card: #ffffff;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
}
img { max-width: 100%; height: auto; }
.container { max-width: 1040px; margin: 0 auto; padding: 0 20px; }
a { color: var(--accent); }

/* Header */
.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 62px; }
.brand { font-size: 22px; font-weight: 800; text-decoration: none; color: var(--ink); letter-spacing: -0.02em; }
.brand span { color: var(--accent); }
.main-nav a {
  margin-left: 22px;
  text-decoration: none;
  color: var(--ink);
  font-size: 15px;
  font-weight: 500;
}
.main-nav a:hover { color: var(--accent); }

/* Hero with photo */
.hero {
  margin: 28px 0 8px;
  border-radius: 14px;
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.hero-inner { padding: 84px 40px; max-width: 640px; }
.hero h1 { font-size: 38px; margin: 0 0 12px; letter-spacing: -0.02em; color: #fff; line-height: 1.15; }
.hero p { font-size: 17px; color: rgba(255,255,255,.92); margin: 0; }

/* Article grid with thumbnails */
.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
  padding: 28px 0 56px;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow .15s ease, transform .15s ease;
}
.card:hover { box-shadow: 0 10px 26px rgba(15,23,42,.08); transform: translateY(-2px); }
.card-img { display: block; aspect-ratio: 16 / 9; overflow: hidden; }
.card-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.card-body { padding: 20px 22px 22px; display: flex; flex-direction: column; flex: 1; }
.card h2 { font-size: 18.5px; margin: 0 0 6px; line-height: 1.35; }
.card h2 a { color: var(--ink); text-decoration: none; }
.card h2 a:hover { color: var(--accent); }
.card p { margin: 0 0 12px; font-size: 14.5px; color: var(--muted); }
.card .read-more { margin-top: auto; font-size: 14px; font-weight: 600; text-decoration: none; }
.card .read-more:hover { text-decoration: underline; }

/* Article page */
.article { max-width: 780px; padding: 40px 0 64px; }
.article h1 { font-size: 31px; line-height: 1.25; margin: 0 0 6px; letter-spacing: -0.02em; }
.article h2 { font-size: 21px; margin: 32px 0 8px; }
.article p, .article li { font-size: 16px; }
.article ul, .article ol { padding-left: 24px; }
.article li { margin-bottom: 6px; }
.featured { margin: 18px 0 8px; }
.featured img { width: 100%; border-radius: 12px; display: block; }
.meta { color: var(--muted); font-size: 13.5px; margin: 0; }
.note {
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 14px !important;
  color: #92400e;
  margin-top: 28px;
}
.back { margin-top: 32px; }
.fee-table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 15px; }
.fee-table th, .fee-table td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; }
.fee-table th { background: #f1f5f9; }

/* Contact form */
.contact-form { max-width: 560px; margin-top: 18px; }
.contact-form label { display: block; font-size: 14px; font-weight: 600; margin: 14px 0 4px; }
.contact-form input, .contact-form textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font-size: 15px;
  font-family: inherit;
}
.contact-form input:focus, .contact-form textarea:focus { outline: 2px solid var(--accent); outline-offset: 0; border-color: var(--accent); }
.contact-form button {
  margin-top: 16px;
  background: var(--accent);
  color: #fff;
  border: 0;
  border-radius: 6px;
  padding: 11px 22px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}
.contact-form button:hover { background: var(--accent-dark); }
.form-success { background: #ecfdf5; border: 1px solid #a7f3d0; color: #065f46; padding: 12px 16px; border-radius: 8px; }
.form-error { background: #fef2f2; border: 1px solid #fecaca; color: #991b1b; padding: 12px 16px; border-radius: 8px; }

/* Footer */
.site-footer {
  background: #111827;
  color: #9ca3af;
  padding: 36px 0;
  margin-top: 40px;
}
.footer-nav { display: flex; flex-wrap: wrap; gap: 8px 26px; margin-bottom: 18px; }
.footer-nav a { color: #e5e7eb; text-decoration: none; font-size: 14.5px; font-weight: 500; }
.footer-nav a:hover { color: #fff; text-decoration: underline; }
.disclaimer { font-size: 13px; line-height: 1.6; max-width: 760px; margin: 0 0 12px; }
.copy { font-size: 13px; margin: 0; color: #6b7280; }

@media (max-width: 640px) {
  .hero-inner { padding: 56px 24px; }
  .hero h1 { font-size: 27px; }
  .article h1 { font-size: 25px; }
  .main-nav a { margin-left: 14px; }
}