/* CalcWise — trustworthy finance design: deep navy + emerald, mobile-first. No fancy animations. */
:root {
  --navy: #0f2b46;
  --navy-dark: #0a1f33;
  --emerald: #0e7c5b;
  --emerald-dark: #0a5f46;
  --bg: #ffffff;
  --bg-soft: #f4f7f9;
  --text: #1c2b3a;
  --text-muted: #5b6b7c;
  --border: #dfe7ee;
  --radius: 10px;
  --shadow: 0 2px 10px rgba(15, 43, 70, 0.08);
  /* Aliases used by injected promo / ad blocks */
  --primary: var(--emerald);
  --primary-dark: var(--emerald-dark);
  --primary-light: #e3f2ec;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  font-size: 16px;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 16px; }
.container.narrow { max-width: 760px; }

h1 { font-size: 30px; line-height: 1.25; margin: 0 0 12px; color: var(--navy); }
h2 { font-size: 23px; margin: 34px 0 12px; color: var(--navy); }
h3 { font-size: 18px; margin: 24px 0 8px; color: var(--navy); }
p { margin: 0 0 14px; }
a { color: var(--emerald-dark); }
a:hover { color: var(--emerald); }

/* ---------- Header ---------- */
.site-header { background: var(--navy); color: #fff; }
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 14px; padding-bottom: 14px;
}
.brand {
  font-size: 22px; font-weight: 800; color: #fff; text-decoration: none;
  letter-spacing: 0.01em;
}
.brand span { color: #3ddc97; } /* emerald accent on "Wise" */
.main-nav a {
  color: #d7e3ee; text-decoration: none; margin-left: 18px; font-size: 15px; font-weight: 600;
}
.main-nav a:hover { color: #fff; }
@media (max-width: 560px) {
  .header-inner { flex-direction: column; gap: 8px; }
  .main-nav a { margin: 0 9px; }
}

/* ---------- Breadcrumb ---------- */
.breadcrumb { font-size: 13px; color: var(--text-muted); padding-top: 14px; }
.breadcrumb a { color: var(--text-muted); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(180deg, var(--navy) 0%, #14385c 100%);
  color: #fff; padding: 44px 0 40px; margin-bottom: 8px;
}
.hero h1 { color: #fff; font-size: 32px; margin-bottom: 10px; }
.hero p { color: #c9d8e6; font-size: 17px; max-width: 640px; margin-bottom: 18px; }
.hero-cta {
  display: inline-block; background: var(--emerald); color: #fff; font-weight: 700;
  padding: 12px 26px; border-radius: var(--radius); text-decoration: none;
}
.hero-cta:hover { background: var(--emerald-dark); color: #fff; }

/* ---------- Calculator grid ---------- */
.calc-grid {
  display: grid; grid-template-columns: 1fr; gap: 16px; margin: 20px 0 30px;
}
@media (min-width: 640px) { .calc-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .calc-grid { grid-template-columns: repeat(3, 1fr); } }
.calc-card {
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; background: #fff; box-shadow: var(--shadow);
  text-decoration: none; color: var(--text); display: block;
}
.calc-card:hover { border-color: var(--emerald); }
.calc-card h3 { margin: 0 0 6px; font-size: 18px; }
.calc-card p { font-size: 14px; color: var(--text-muted); margin: 0; }
.calc-card .card-link { color: var(--emerald-dark); font-weight: 700; font-size: 14px; }
.calc-card.soon { background: var(--bg-soft); box-shadow: none; }
.calc-card.soon .card-link { color: var(--text-muted); font-weight: 600; }

/* ---------- Calculator tool ---------- */
.calc-tool {
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg-soft); padding: 22px; margin: 20px 0;
}
.field { margin-bottom: 14px; }
.field label { display: block; font-weight: 700; font-size: 14px; margin-bottom: 6px; color: var(--navy); }
.field .hint { font-weight: 400; font-size: 13px; color: var(--text-muted); }
.field input, .field select {
  width: 100%; padding: 11px 12px; font-size: 16px;
  border: 1px solid var(--border); border-radius: 8px; background: #fff; color: var(--text);
}
.field input:focus, .field select:focus { outline: 2px solid var(--emerald); border-color: var(--emerald); }
.btn-calc {
  display: inline-block; background: var(--emerald); color: #fff; border: none; cursor: pointer;
  font-size: 17px; font-weight: 700; padding: 13px 34px; border-radius: var(--radius); width: 100%;
}
.btn-calc:hover { background: var(--emerald-dark); }
@media (min-width: 640px) { .btn-calc { width: auto; } }

.result-card {
  border: 2px solid var(--emerald); border-radius: var(--radius);
  background: #fff; padding: 22px; margin: 20px 0;
}
.result-main { font-size: 15px; color: var(--text-muted); margin-bottom: 4px; }
.result-value { font-size: 36px; font-weight: 800; color: var(--navy); margin-bottom: 14px; }
.result-breakdown { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.result-breakdown div { background: var(--bg-soft); border-radius: 8px; padding: 10px 12px; }
.result-breakdown .k { font-size: 13px; color: var(--text-muted); }
.result-breakdown .v { font-size: 19px; font-weight: 700; color: var(--navy); }

.chart-wrap { margin: 18px 0 4px; overflow-x: auto; }
.chart-wrap svg { display: block; min-width: 480px; width: 100%; height: auto; }
.chart-note { font-size: 13px; color: var(--text-muted); }

/* ---------- FAQ accordion ---------- */
.faq details {
  border: 1px solid var(--border); border-radius: 8px; margin-bottom: 10px; background: #fff;
}
.faq summary {
  padding: 14px 16px; font-weight: 700; cursor: pointer; color: var(--navy); list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before { content: "+ "; color: var(--emerald); font-weight: 800; }
.faq details[open] summary::before { content: "− "; }
.faq details .faq-a { padding: 0 16px 14px; color: var(--text); }

/* ---------- Article ---------- */
.toc {
  border: 1px solid var(--border); border-left: 4px solid var(--emerald);
  border-radius: 8px; background: var(--bg-soft); padding: 16px 18px; margin: 20px 0;
}
.toc strong { display: block; margin-bottom: 8px; color: var(--navy); }
.toc ol { margin: 0; padding-left: 20px; }
.toc li { margin-bottom: 4px; }
.author-box {
  border-top: 1px solid var(--border); margin-top: 34px; padding-top: 18px;
  font-size: 14px; color: var(--text-muted);
}
.author-box .reviewed { color: var(--emerald-dark); font-weight: 700; }

/* ---------- Ad slots: no flex, no min-height (avoids "No slot size" errors) ---------- */
.ad-slot { margin: 24px 0; text-align: center; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-dark); color: #b9c9da; margin-top: 44px; }
.footer-inner { padding: 34px 16px 26px; }
.footer-brand { color: #fff; font-size: 19px; font-weight: 800; margin-bottom: 6px; }
.footer-brand span { color: #3ddc97; }
.footer-tag { font-size: 14px; max-width: 520px; }
.footer-nav { margin: 16px 0; }
.footer-nav a { color: #d7e3ee; text-decoration: none; margin-right: 18px; font-size: 14px; }
.footer-nav a:hover { color: #fff; text-decoration: underline; }
.copyright, .footer-note { font-size: 13px; color: #8fa3b8; margin: 6px 0 0; }

/* ---------- 404 ---------- */
.page-404 { text-align: center; padding: 60px 0; }
.page-404 h1 { font-size: 64px; margin-bottom: 8px; }

/* ---------- Related links ---------- */
.related ul { padding-left: 20px; }
.related li { margin-bottom: 6px; }

/* ---------- Tables (used in guides) ---------- */
table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 15px; }
caption { caption-side: top; text-align: left; font-weight: 700; margin-bottom: 8px; }
th, td { border: 1px solid var(--border); padding: 10px 12px; text-align: left; }
th { background: var(--navy); color: #fff; font-weight: 700; }
tbody tr:nth-child(even) { background: #f4f7fa; }
@media (max-width: 640px) {
  table { display: block; overflow-x: auto; }
}