:root {
  --sun: #FFB200;
  --sun-soft: #FFE9A8;
  --navy: #1A2B4C;
  --green: #0E7C3A;
  --bg: #FFFBF0;
  --surface: #ffffff;
  --text: #222;
  --muted: #5b6275;
  --border: #E8E5D7;
  --radius: 12px;
  --max: 1100px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}
.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* Header */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--navy); font-weight: 700; font-size: 1.2rem; }
.brand-mark { color: var(--sun); font-size: 1.5rem; }
.site-nav { display: flex; gap: 22px; flex-wrap: wrap; }
.site-nav a { color: var(--navy); text-decoration: none; font-weight: 500; font-size: 0.95rem; }
.site-nav a:hover { color: var(--green); }

/* Hero */
.hero {
  background: linear-gradient(180deg, var(--sun-soft) 0%, var(--bg) 100%);
  padding: 80px 0 60px;
  text-align: center;
}
.hero h1 { font-size: clamp(2rem, 5vw, 3.4rem); line-height: 1.15; color: var(--navy); margin: 0 0 20px; font-weight: 800; }
.accent { color: var(--green); }
.lede { font-size: 1.15rem; color: var(--muted); max-width: 680px; margin: 0 auto 32px; }
.hero-cta { margin-top: 28px; }

.btn { display: inline-block; padding: 14px 26px; border-radius: var(--radius); font-weight: 600; text-decoration: none; transition: transform .12s ease, box-shadow .12s ease; border: 2px solid transparent; cursor: pointer; }
.btn-primary { background: var(--navy); color: white; }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(26,43,76,.2); }
.btn-secondary { background: var(--surface); color: var(--navy); border-color: var(--navy); }

/* Calc grid */
.calc-grid { padding: 60px 0; }
.calc-grid h2 { font-size: 1.8rem; color: var(--navy); margin: 0 0 32px; text-align: center; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-decoration: none;
  color: var(--text);
  display: flex;
  flex-direction: column;
  transition: transform .12s ease, box-shadow .12s ease, border-color .12s ease;
}
.card:hover { transform: translateY(-2px); box-shadow: 0 8px 22px rgba(0,0,0,.06); border-color: var(--sun); }
.card.soon { opacity: 0.72; cursor: default; }
.card.soon:hover { transform: none; box-shadow: none; border-color: var(--border); }
.card-tag { display: inline-block; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; color: var(--sun); margin-bottom: 8px; }
.card.soon .card-tag { color: var(--muted); }
.card h3 { font-size: 1.15rem; color: var(--navy); margin: 0 0 8px; }
.card p { color: var(--muted); font-size: 0.96rem; flex: 1; margin: 0 0 14px; }
.card-cta { color: var(--green); font-weight: 600; font-size: 0.92rem; }
.card.soon .card-cta { color: var(--muted); }

/* Why section */
.why { background: var(--surface); padding: 60px 0; border-top: 1px solid var(--border); }
.why .container { max-width: 720px; }
.why h2 { color: var(--navy); font-size: 1.6rem; margin: 0 0 20px; }
.why p { margin: 0 0 16px; }
.byline { color: var(--muted); font-style: italic; margin-top: 24px; }

/* Footer */
.site-footer { background: var(--navy); color: #DCE0E8; padding: 50px 0 24px; margin-top: 60px; }
.site-footer strong { color: white; display: block; margin-bottom: 12px; font-size: 1rem; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 30px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin: 6px 0; }
.site-footer a { color: #DCE0E8; text-decoration: none; font-size: 0.95rem; }
.site-footer a:hover { color: var(--sun); }
.site-footer p { color: #B4BBC8; font-size: 0.92rem; margin: 0; }
.footer-copy { text-align: center; padding-top: 30px; margin-top: 30px; border-top: 1px solid rgba(255,255,255,.1); color: #B4BBC8; font-size: 0.88rem; }

/* Calculator page */
.calc-page { padding: 50px 0; }
.calc-page h1 { color: var(--navy); font-size: 2rem; margin: 0 0 8px; }
.calc-page .subtitle { color: var(--muted); font-size: 1.05rem; margin: 0 0 32px; }
.calc-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}
.calc-form { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px 20px; margin-bottom: 24px; }
.field { display: flex; flex-direction: column; }
.field label { font-size: 0.88rem; font-weight: 600; color: var(--navy); margin-bottom: 6px; }
.field input, .field select {
  padding: 11px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  background: white;
  color: var(--text);
}
.field input:focus, .field select:focus { outline: 2px solid var(--sun); border-color: var(--sun); }
.field .hint { font-size: 0.8rem; color: var(--muted); margin-top: 4px; }

.result {
  background: var(--sun-soft);
  border: 2px solid var(--sun);
  border-radius: var(--radius);
  padding: 24px;
  margin-top: 18px;
}
.result-headline { font-size: 1.5rem; color: var(--navy); margin: 0 0 12px; font-weight: 800; }
.result-row { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid rgba(0,0,0,.06); }
.result-row:last-child { border-bottom: none; }
.result-label { color: var(--muted); font-size: 0.95rem; }
.result-value { font-weight: 700; color: var(--navy); }

#chart-wrap { background: white; border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; margin-top: 18px; }
canvas { max-width: 100%; }

.long-content { padding: 40px 0 60px; }
.long-content .container { max-width: 760px; }
.long-content h2 { color: var(--navy); margin-top: 36px; font-size: 1.45rem; }
.long-content h3 { color: var(--navy); margin-top: 28px; font-size: 1.15rem; }
.long-content p, .long-content li { color: var(--text); }
.long-content ul { padding-left: 22px; }
.long-content code { background: #F4F2E8; padding: 2px 6px; border-radius: 4px; font-size: 0.92em; }

/* Mobile */
@media (max-width: 640px) {
  .hero { padding: 50px 0 40px; }
  .site-nav { gap: 14px; }
  .site-nav a { font-size: 0.88rem; }
  .calc-form { grid-template-columns: 1fr; }
}