:root {
  --ink: #12231f;
  --ink-soft: #4a5e57;
  --paper: #f7f3ea;
  --surface: #fffdf8;
  --mint: #bdebd7;
  --mint-dark: #176b52;
  --coral: #f28c6a;
  --coral-dark: #9b3f24;
  --line: #dfe5de;
  --shadow: 0 18px 50px rgba(18, 35, 31, 0.1);
  --radius: 22px;
  --max: 1160px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.65;
}

a { color: var(--mint-dark); }
a:hover { color: var(--coral-dark); }
img { max-width: 100%; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 100;
  padding: 0.8rem 1rem;
  background: var(--ink);
  color: white;
}
.skip-link:focus { left: 1rem; top: 1rem; }

.container { width: min(calc(100% - 2rem), var(--max)); margin-inline: auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(18, 35, 31, 0.08);
  background: rgba(247, 243, 234, 0.92);
  backdrop-filter: blur(14px);
}

.nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  text-decoration: none;
  font-weight: 850;
  letter-spacing: -0.03em;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 13px;
  color: white;
  background: var(--ink);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
}

.nav-links { display: flex; align-items: center; gap: 1.3rem; }
.nav-links a { color: var(--ink); text-decoration: none; font-size: 0.94rem; font-weight: 700; }
.nav-links a[aria-current="page"] { color: var(--mint-dark); }
.nav-links .button,
.nav-links .button:visited,
.nav-links .button:hover { color: white; }

.button,
.button:visited {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 48px;
  padding: 0.72rem 1.15rem;
  border: 1px solid var(--ink);
  border-radius: 999px;
  color: white;
  background: var(--ink);
  text-decoration: none;
  font-weight: 800;
  line-height: 1.2;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}
.button:hover { color: white; background: #1e3a33; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(18,35,31,.15); }
.button.secondary { color: var(--ink); background: transparent; }
.button.secondary:hover { color: var(--ink); background: var(--surface); }
.button.small { min-height: 40px; padding: 0.55rem 0.9rem; font-size: 0.9rem; }

.hero {
  padding: clamp(4.2rem, 9vw, 8rem) 0 4.5rem;
  overflow: hidden;
}

.hero-grid { display: grid; grid-template-columns: 1.12fr 0.88fr; gap: clamp(2rem, 6vw, 5rem); align-items: center; }
.eyebrow { margin: 0 0 1rem; color: var(--mint-dark); font-size: 0.78rem; font-weight: 900; letter-spacing: 0.12em; text-transform: uppercase; }
h1, h2, h3 { margin-top: 0; line-height: 1.1; letter-spacing: -0.045em; }
h1 { margin-bottom: 1.35rem; font-size: clamp(2.7rem, 6vw, 5.7rem); }
h2 { margin-bottom: 1rem; font-size: clamp(2rem, 4vw, 3.5rem); }
h3 { margin-bottom: 0.55rem; font-size: 1.35rem; }
.lede { max-width: 680px; margin: 0 0 1.7rem; color: var(--ink-soft); font-size: clamp(1.08rem, 1.8vw, 1.28rem); }
.actions { display: flex; flex-wrap: wrap; gap: 0.8rem; align-items: center; }
.microcopy { margin: 0.85rem 0 0; color: var(--ink-soft); font-size: 0.83rem; }

.dashboard-mock {
  position: relative;
  padding: 1.2rem;
  border: 1px solid var(--line);
  border-radius: 30px;
  background: var(--surface);
  box-shadow: var(--shadow);
  transform: rotate(1.5deg);
}
.dashboard-mock::before {
  content: "";
  position: absolute;
  inset: -30px auto auto -45px;
  z-index: -1;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: var(--mint);
  filter: blur(2px);
}
.mock-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.mock-dots { display: flex; gap: 5px; }
.mock-dots span { width: 8px; height: 8px; border-radius: 50%; background: var(--line); }
.mock-chip { padding: 0.3rem 0.55rem; border-radius: 999px; color: var(--mint-dark); background: #e6f7ef; font-size: 0.72rem; font-weight: 800; }
.metric-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }
.metric { padding: 1rem; border-radius: 17px; background: #f5f5ef; }
.metric strong { display: block; margin-top: 0.22rem; font-size: 1.4rem; letter-spacing: -0.04em; }
.metric span { color: var(--ink-soft); font-size: 0.78rem; }
.metric.net { grid-column: 1 / -1; background: var(--mint); }
.bars { display: flex; align-items: end; gap: 8px; height: 120px; margin-top: 1rem; padding: 1rem; border-radius: 17px; background: var(--ink); }
.bars span { flex: 1; min-height: 18%; border-radius: 7px 7px 2px 2px; background: var(--mint); opacity: 0.95; }
.bars span:nth-child(2n) { background: var(--coral); }

.trust-strip { border-block: 1px solid var(--line); background: rgba(255,255,255,.42); }
.trust-strip .container { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; padding-block: 1rem; }
.trust-item { display: flex; gap: 0.65rem; align-items: center; font-size: 0.9rem; font-weight: 700; }
.tick { display: grid; width: 28px; height: 28px; place-items: center; border-radius: 50%; color: var(--mint-dark); background: var(--mint); font-size: 0.78rem; }

.section { padding: clamp(4rem, 8vw, 7rem) 0; }
.section.tight { padding-block: 3rem; }
.section.alt { background: var(--surface); }
.section-heading { max-width: 740px; margin-bottom: 2.2rem; }
.section-heading p { color: var(--ink-soft); }

.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1rem; }
.card {
  display: flex;
  flex-direction: column;
  padding: 1.35rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 8px 28px rgba(18,35,31,.055);
}
.card .tag { align-self: flex-start; margin-bottom: 1rem; }
.card p { color: var(--ink-soft); }
.card .card-link { margin-top: auto; font-weight: 850; text-decoration: none; }
.tag { display: inline-flex; padding: 0.3rem 0.62rem; border-radius: 999px; color: var(--mint-dark); background: #e6f7ef; font-size: 0.75rem; font-weight: 850; }
.tag.coral { color: var(--coral-dark); background: #fff0ea; }

.split { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(2rem, 6vw, 5rem); align-items: start; }
.steps { display: grid; gap: 0.9rem; }
.step { display: grid; grid-template-columns: auto 1fr; gap: 1rem; padding: 1.1rem; border-radius: 18px; background: var(--surface); }
.step-number { display: grid; width: 38px; height: 38px; place-items: center; border-radius: 12px; color: white; background: var(--ink); font-weight: 900; }
.step p { margin: 0.25rem 0 0; color: var(--ink-soft); }

.callout { padding: clamp(1.5rem, 4vw, 3rem); border-radius: 30px; background: var(--ink); color: white; }
.callout h2 { max-width: 760px; }
.callout p { max-width: 680px; color: #c8d4cf; }
.callout .button { color: var(--ink); background: var(--mint); border-color: var(--mint); }

.page-hero { padding: 5rem 0 2.8rem; }
.page-hero h1 { max-width: 880px; font-size: clamp(2.6rem, 6vw, 5rem); }
.breadcrumb { margin-bottom: 1.3rem; color: var(--ink-soft); font-size: 0.84rem; }
.breadcrumb a { color: inherit; }

.article-layout { display: grid; grid-template-columns: minmax(0, 760px) 260px; gap: 4rem; align-items: start; }
.article { min-width: 0; }
.article h2 { margin-top: 3.2rem; font-size: clamp(1.75rem, 3vw, 2.5rem); }
.article h3 { margin-top: 2rem; }
.article p, .article li { color: #2b4039; }
.article table, .tools-table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; border-radius: 14px; overflow: hidden; background: var(--surface); }
.article th, .article td, .tools-table th, .tools-table td { padding: 0.85rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.article th, .tools-table th { color: var(--ink); background: #ecf4ef; font-size: 0.86rem; }
.article blockquote { margin: 2rem 0; padding: 1.25rem 1.4rem; border-left: 5px solid var(--coral); border-radius: 0 16px 16px 0; background: #fff7f2; }
.article-meta { display: flex; flex-wrap: wrap; gap: 1rem; margin: 1rem 0 2rem; color: var(--ink-soft); font-size: 0.85rem; }
.article-cta { margin: 2.5rem 0; padding: 1.5rem; border-radius: 22px; background: var(--mint); }
.article-cta p { color: var(--ink); }
.source-list { font-size: 0.88rem; }
.source-list li { margin-bottom: 0.55rem; }

.toc { position: sticky; top: 96px; padding: 1.1rem; border-left: 1px solid var(--line); font-size: 0.88rem; }
.toc strong { display: block; margin-bottom: 0.7rem; }
.toc a { display: block; margin: 0.45rem 0; color: var(--ink-soft); text-decoration: none; }

.notice { padding: 1rem 1.1rem; border: 1px solid #ebc8bb; border-radius: 15px; background: #fff5f0; color: #66301f; font-size: 0.9rem; }
.notice.success { border-color: #a6d9c4; background: #edf9f3; color: #154f3d; }

.calculator-panel { margin-bottom: 1.5rem; padding: clamp(1.25rem, 4vw, 2rem); border: 1px solid var(--line); border-radius: 24px; background: var(--surface); box-shadow: 0 12px 34px rgba(18,35,31,.07); }
.calculator-panel h2 { margin-top: 0.25rem; }
.calculator-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; margin: 1.5rem 0; }
.calculator-field { display: grid; gap: 0.45rem; color: var(--ink); font-size: 0.88rem; font-weight: 800; }
.calculator-field input { width: 100%; padding: 0.9rem 1rem; border: 1px solid var(--line); border-radius: 12px; color: var(--ink); background: #fff; font: inherit; font-size: 1rem; }
.calculator-field input:focus { outline: 3px solid rgba(24,179,126,.2); border-color: var(--mint-dark); }
.calculator-results { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem; }
.result-card { padding: 1rem; border-radius: 15px; background: #edf7f2; }
.result-card span { display: block; color: var(--ink-soft); font-size: 0.78rem; }
.result-card strong { display: block; margin-top: 0.25rem; font-size: 1.35rem; }
.calculator-verdict { margin: 1.2rem 0 0.2rem; color: var(--ink) !important; font-weight: 900; }
.calculator-break-even { margin: 0; color: var(--mint-dark) !important; font-weight: 800; }

.tool-list { display: grid; gap: 1rem; }
.tool-row { display: grid; grid-template-columns: 1.1fr 1.6fr 0.8fr auto; gap: 1.2rem; align-items: center; padding: 1.2rem; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); }
.tool-row p { margin: 0.2rem 0 0; color: var(--ink-soft); font-size: 0.9rem; }
.tool-score { font-weight: 900; color: var(--mint-dark); }

.checklist { list-style: none; padding: 0; }
.checklist li { position: relative; margin: 0.7rem 0; padding-left: 2rem; }
.checklist li::before { content: "✓"; position: absolute; left: 0; top: 0; display: grid; width: 1.35rem; height: 1.35rem; place-items: center; border-radius: 50%; color: var(--mint-dark); background: var(--mint); font-size: 0.75rem; font-weight: 900; }

.site-footer { padding: 3rem 0; border-top: 1px solid var(--line); background: #ede8de; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 0.8fr 0.8fr; gap: 2rem; }
.footer-grid h3 { font-size: 1rem; letter-spacing: -0.02em; }
.footer-grid a { display: block; margin: 0.35rem 0; color: var(--ink-soft); text-decoration: none; font-size: 0.9rem; }
.footer-note { max-width: 520px; color: var(--ink-soft); font-size: 0.88rem; }
.copyright { margin-top: 2rem; color: var(--ink-soft); font-size: 0.8rem; }

@media (max-width: 900px) {
  .hero-grid, .split, .article-layout { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: 1fr 1fr; }
  .toc { position: static; order: -1; border-left: 0; border-bottom: 1px solid var(--line); }
  .tool-row { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 650px) {
  body { font-size: 16px; }
  .nav-links a:not(.button) { display: none; }
  .hero { padding-top: 3.2rem; }
  .card-grid, .trust-strip .container, .footer-grid, .metric-grid { grid-template-columns: 1fr; }
  .metric.net { grid-column: auto; }
  .tool-row { grid-template-columns: 1fr; }
  .article table { display: block; overflow-x: auto; white-space: nowrap; }
  .calculator-grid, .calculator-results { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}