/* Shared stylesheet for static content pages (homepage, guides, policies). */
:root {
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-2: #f1f3f5;
  --text: #1a1d21;
  --text-2: #5c6570;
  --text-3: #8a929c;
  --border: #e4e7eb;
  --accent: #4f6ef7;
  --accent-soft: #eef1fe;
  --accent-contrast: #ffffff;
  --income: #16a34a;
  --danger: #e5484d;
  --shadow: 0 1px 2px rgb(16 24 40 / 0.05), 0 4px 16px rgb(16 24 40 / 0.06);
  --shadow-lg: 0 8px 40px rgb(16 24 40 / 0.16);
  --radius: 14px;
  --radius-sm: 9px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; }

/* ============ Header ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgb(255 255 255 / 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.site-header .inner {
  max-width: 1040px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.site-brand {
  font-weight: 700;
  font-size: 17px;
  color: var(--text);
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.site-brand:hover { text-decoration: none; }
.site-brand .mark { margin-right: 6px; }
.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
  flex-wrap: wrap;
}
.site-nav a {
  color: var(--text-2);
  font-size: 14.5px;
  font-weight: 500;
  padding: 7px 11px;
  border-radius: 8px;
}
.site-nav a:hover {
  color: var(--text);
  background: var(--surface-2);
  text-decoration: none;
}
.site-nav a.cta {
  background: var(--accent);
  color: var(--accent-contrast);
  margin-left: 6px;
}
.site-nav a.cta:hover { filter: brightness(1.06); background: var(--accent); }

/* ============ Layout ============ */
.wrap {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 20px;
}
.narrow { max-width: 760px; }

/* ============ Buttons ============ */
.btn {
  display: inline-block;
  font-weight: 600;
  font-size: 15.5px;
  padding: 12px 22px;
  border-radius: 10px;
  border: 1px solid transparent;
  cursor: pointer;
  text-align: center;
}
.btn:hover { text-decoration: none; }
.btn-primary {
  background: var(--accent);
  color: var(--accent-contrast);
  box-shadow: var(--shadow);
}
.btn-primary:hover { filter: brightness(1.06); }
.btn-ghost {
  background: var(--surface);
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover { background: var(--surface-2); }

/* ============ Hero ============ */
.hero {
  padding: 72px 0 48px;
  text-align: center;
}
.hero h1 {
  font-size: clamp(34px, 5.5vw, 52px);
  line-height: 1.12;
  letter-spacing: -0.025em;
  margin: 0 0 16px;
  font-weight: 800;
}
.hero .lede {
  font-size: clamp(17px, 2.2vw, 20px);
  color: var(--text-2);
  max-width: 640px;
  margin: 0 auto 28px;
}
.hero-ctas { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero-note { margin-top: 14px; font-size: 13.5px; color: var(--text-3); }

/* Quick-add mock */
.quickmock {
  max-width: 620px;
  margin: 40px auto 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 18px;
  text-align: left;
}
.quickmock .qm-label { font-size: 12.5px; font-weight: 600; color: var(--text-3); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 8px; }
.quickmock .qm-input {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 15.5px;
  color: var(--text);
  font-family: ui-monospace, 'SF Mono', Menlo, monospace;
}
.quickmock .qm-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.chip {
  font-size: 13px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
}
.chip.income { background: #e7f7ee; color: var(--income); }

/* ============ Sections ============ */
.section { padding: 44px 0; }
.section h2 {
  font-size: clamp(26px, 3.5vw, 34px);
  letter-spacing: -0.02em;
  margin: 0 0 8px;
  font-weight: 750;
}
.section .sub { color: var(--text-2); margin: 0 0 28px; font-size: 17px; }

.grid { display: grid; gap: 18px; }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
}
.card h3 { margin: 0 0 8px; font-size: 17.5px; letter-spacing: -0.01em; }
.card p { margin: 0; color: var(--text-2); font-size: 15px; }
.card .icon { font-size: 26px; display: block; margin-bottom: 10px; }

/* Steps */
.steps { counter-reset: step; display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.step { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.step::before {
  counter-increment: step;
  content: counter(step);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 10px;
}
.step h3 { margin: 0 0 6px; font-size: 16.5px; }
.step p { margin: 0; color: var(--text-2); font-size: 14.5px; }

/* CTA band */
.cta-band {
  background: linear-gradient(135deg, #4f6ef7, #6d5df6);
  color: #fff;
  border-radius: calc(var(--radius) + 6px);
  padding: 44px 32px;
  text-align: center;
  margin: 40px 0;
}
.cta-band h2 { color: #fff; margin: 0 0 8px; font-size: clamp(24px, 3vw, 32px); letter-spacing: -0.02em; }
.cta-band p { color: rgb(255 255 255 / 0.88); margin: 0 auto 22px; max-width: 520px; font-size: 16.5px; }
.cta-band .btn-primary { background: #fff; color: var(--accent); }
.cta-band .btn-ghost { background: transparent; border-color: rgb(255 255 255 / 0.5); color: #fff; }

/* ============ Guides ============ */
.guide-grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); }
.guide-card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
  color: var(--text);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.guide-card:hover {
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}
.guide-card .kicker { font-size: 12.5px; font-weight: 700; color: var(--accent); text-transform: uppercase; letter-spacing: 0.05em; }
.guide-card h3 { margin: 8px 0; font-size: 18.5px; letter-spacing: -0.01em; line-height: 1.3; }
.guide-card p { margin: 0; color: var(--text-2); font-size: 14.5px; flex: 1; }
.guide-card .meta { margin-top: 14px; font-size: 13px; color: var(--text-3); }

/* Article */
.article-head { padding: 48px 0 8px; }
.article-head .kicker { font-size: 13px; font-weight: 700; color: var(--accent); text-transform: uppercase; letter-spacing: 0.06em; }
.article-head h1 {
  font-size: clamp(30px, 4.5vw, 42px);
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin: 10px 0 14px;
  font-weight: 800;
}
.article-head .byline { color: var(--text-3); font-size: 14.5px; }
.article-head .byline strong { color: var(--text-2); font-weight: 600; }

.prose { padding: 16px 0 40px; }
.prose h2 {
  font-size: 26px;
  letter-spacing: -0.02em;
  margin: 40px 0 12px;
  font-weight: 750;
}
.prose h3 { font-size: 20px; margin: 28px 0 8px; letter-spacing: -0.01em; }
.prose p { margin: 0 0 16px; color: #2a2f36; }
.prose ul, .prose ol { margin: 0 0 18px; padding-left: 22px; color: #2a2f36; }
.prose li { margin-bottom: 8px; }
.prose strong { color: var(--text); }
.prose blockquote {
  margin: 22px 0;
  padding: 14px 18px;
  background: var(--accent-soft);
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text);
}
.prose blockquote p { margin: 0; }
.prose .callout {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin: 22px 0;
  box-shadow: var(--shadow);
}
.prose .callout p:last-child { margin-bottom: 0; }
.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0 24px;
  font-size: 15px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.prose th, .prose td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}
.prose th { background: var(--surface-2); font-weight: 650; font-size: 13.5px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-2); }
.prose tr:last-child td { border-bottom: none; }

/* FAQ */
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 12px;
}
.faq-item h3 { margin: 0 0 6px; font-size: 16.5px; }
.faq-item p { margin: 0; color: var(--text-2); font-size: 15px; }

/* Breadcrumb */
.breadcrumb { font-size: 13.5px; color: var(--text-3); padding: 20px 0 0; }
.breadcrumb a { color: var(--text-3); }
.breadcrumb span { margin: 0 6px; }

/* ============ Static page blocks ============ */
.page-head { padding: 48px 0 8px; }
.page-head h1 {
  font-size: clamp(30px, 4.5vw, 42px);
  letter-spacing: -0.025em;
  margin: 0 0 10px;
  font-weight: 800;
}
.page-head p { color: var(--text-2); font-size: 18px; margin: 0; max-width: 640px; }

.contact-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  margin: 28px 0;
}
.contact-box .email { font-size: 20px; font-weight: 700; }

/* ============ Footer ============ */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  margin-top: 56px;
  padding: 36px 0 44px;
  font-size: 14.5px;
  color: var(--text-2);
}
.site-footer .foot-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-bottom: 16px;
}
.site-footer .foot-nav a { color: var(--text-2); font-weight: 500; }
.site-footer .foot-nav a:hover { color: var(--accent); }
.site-footer p { margin: 6px 0; }

/* ============ Responsive ============ */
@media (max-width: 720px) {
  .hero { padding: 48px 0 32px; }
  .site-header .inner { flex-direction: column; align-items: flex-start; gap: 8px; }
  .site-nav { margin-left: 0; }
  .site-nav a { padding: 6px 9px; font-size: 14px; }
  .section { padding: 32px 0; }
  .cta-band { padding: 32px 20px; }
}