:root {
  --bg: hsl(207 47% 95%);
  --fg: hsl(207 68% 14%);
  --muted: hsl(207 20% 46%);
  --primary: hsl(14 89% 54%);
  --primary-fg: #fff;
  --border: hsl(210 25% 90%);
  --dark: hsl(207 68% 14%);
  --dark-fg: #fff;
  --hero-gradient: linear-gradient(135deg, hsl(207 68% 14%) 0%, hsl(207 50% 22%) 100%);
  --font-heading: 'Raleway', sans-serif;
  --font-body: 'Poppins', sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-body); background: var(--bg); color: var(--fg); line-height: 1.6; -webkit-font-smoothing: antialiased; }
h1, h2, h3, h4 { font-family: var(--font-heading); font-weight: 700; color: var(--fg); }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

/* Header — matches React Navbar (dark navy bg, white text) */
.site-header { background: var(--dark); position: sticky; top: 0; z-index: 50; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 4rem; }
.brand { display: flex; align-items: center; gap: 0.5rem; }
.brand-mark { width: 36px; height: 36px; border-radius: 8px; background: var(--primary); color: var(--primary-fg); display: flex; align-items: center; justify-content: center; font-family: var(--font-heading); font-weight: 700; font-size: 0.85rem; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name { font-family: var(--font-heading); font-weight: 700; color: var(--dark-fg); }
.brand-sub { font-size: 0.625rem; color: rgba(255,255,255,0.6); letter-spacing: 0.1em; text-transform: uppercase; }
.nav { display: flex; gap: 1.5rem; align-items: center; }
.nav a { color: var(--dark-fg); font-size: 0.9rem; font-weight: 500; }
.nav .btn-cta { background: var(--primary); color: var(--primary-fg); padding: 0.55rem 1.1rem; border-radius: 8px; text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.8rem; font-weight: 600; }
.nav .btn-cta:hover { text-decoration: none; opacity: 0.9; }

/* Hero */
.hero { background: var(--hero-gradient); color: var(--dark-fg); padding: 5rem 0 6rem; text-align: center; }
.hero h1 { color: var(--dark-fg); font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 0.75rem; letter-spacing: -0.02em; }
.hero p { color: rgba(255,255,255,0.7); font-size: 1rem; max-width: 42rem; margin: 0 auto; }

/* Article / cards */
.article-section { padding: 4rem 0; }
.card-wrap { max-width: 768px; margin: 0 auto; background: #fff; padding: 3rem; border-radius: 12px; box-shadow: 0 4px 24px -4px hsl(207 68% 14% / 0.08); }
.card-wrap h2 { font-size: 1.5rem; margin-top: 2rem; margin-bottom: 0.75rem; color: var(--fg); }
.card-wrap h2:first-child { margin-top: 0; }
.card-wrap h3 { font-size: 1.125rem; margin-top: 1.5rem; margin-bottom: 0.5rem; }
.card-wrap p, .card-wrap ul, .card-wrap ol { color: var(--muted); margin-bottom: 1rem; }
.card-wrap ul, .card-wrap ol { padding-left: 1.5rem; }
.card-wrap li { margin-bottom: 0.5rem; }
.card-wrap strong { color: var(--fg); }

/* Two-column layout for form pages */
.split { display: grid; grid-template-columns: 3fr 2fr; gap: 3rem; max-width: 1100px; margin: 0 auto; align-items: start; }
.split-card { background: #fff; padding: 2rem; border-radius: 12px; box-shadow: 0 4px 24px -4px hsl(207 68% 14% / 0.08); border: 1px solid var(--border); }
.split-card h2 { font-size: 1.5rem; margin-bottom: 1.25rem; }
.aside h4 { font-size: 1rem; margin-bottom: 0.75rem; }
.aside .info-row { display: flex; gap: 0.6rem; color: var(--muted); font-size: 0.875rem; margin-bottom: 0.6rem; align-items: flex-start; }
.aside .info-row .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--primary); margin-top: 0.55rem; flex-shrink: 0; }
.aside .panel { background: hsl(14 89% 54% / 0.08); border: 1px solid var(--border); padding: 1.25rem; border-radius: 12px; margin-top: 1.5rem; }
.aside .panel h4 { margin-bottom: 0.4rem; }
.aside .panel p, .aside .panel li { color: var(--muted); font-size: 0.875rem; }

/* Forms */
.field { margin-bottom: 1rem; display: block; }
.field label { display: block; font-size: 0.875rem; font-weight: 500; color: var(--fg); margin-bottom: 0.35rem; }
.field input, .field textarea, .field select {
  width: 100%; padding: 0.6rem 0.75rem; border: 1px solid var(--border); border-radius: 8px;
  font: inherit; color: var(--fg); background: #fff; outline: none;
}
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px hsl(14 89% 54% / 0.15); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.btn { display: inline-block; background: var(--primary); color: var(--primary-fg); padding: 0.75rem 1.5rem; border-radius: 8px; border: 0; font: inherit; font-weight: 600; cursor: pointer; text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.85rem; }
.btn:hover { opacity: 0.92; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }
.form-status { margin-top: 1rem; font-size: 0.9rem; }
.form-status.success { color: hsl(142 70% 30%); }
.form-status.error { color: hsl(0 70% 45%); }

/* Footer */
.site-footer { background: var(--dark); color: var(--dark-fg); padding: 3rem 0 1.5rem; }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: start; }
.footer-brand p { color: rgba(255,255,255,0.7); font-size: 0.875rem; line-height: 1.6; max-width: 20rem; margin-top: 1.25rem; }
.footer-links { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; justify-self: end; }
.footer-col { padding-left: 2rem; border-left: 1px solid rgba(255,255,255,0.1); }
.footer-col-title { font-family: var(--font-heading); font-weight: 600; font-size: 0.875rem; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 1rem; color: var(--dark-fg); }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: 0.6rem; }
.footer-col a { color: rgba(255,255,255,0.7); font-size: 0.875rem; transition: color 0.2s; }
.footer-col a:hover { color: #fff; text-decoration: none; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 1.5rem; margin-top: 2.5rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; font-size: 0.875rem; color: rgba(255,255,255,0.5); }
.footer-bottom a { color: rgba(255,255,255,0.5); transition: color 0.2s; }
.footer-bottom a:hover { color: #fff; text-decoration: none; }

@media (max-width: 768px) {
  .split { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .card-wrap { padding: 1.75rem; }
  .nav { gap: 1rem; }
  .nav a:not(.btn-cta) { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-links { justify-self: start; }
}