/* SVAG Labs — Berkshire Simplicity */
@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,400;0,600;1,400&family=IBM+Plex+Sans:wght@300;400;500&family=IBM+Plex+Mono:wght@400&display=swap');

:root {
  --paper:   #f9f7f4;
  --white:   #ffffff;
  --ink:     #1a1814;
  --body:    #3a3630;
  --muted:   #7a7570;
  --rule:    #ddd8d0;
  --accent:  #1a3a5c;
  --accent2: #2d6fa8;
  --serif:   'Lora', Georgia, serif;
  --sans:    'IBM Plex Sans', system-ui, sans-serif;
  --mono:    'IBM Plex Mono', monospace;
  --max:     860px;
  --gutter:  24px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 16px; }

body {
  background: var(--paper);
  color: var(--body);
  font-family: var(--sans);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── Layout ── */
.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ── Nav ── */
nav {
  border-bottom: 1px solid var(--rule);
  background: var(--white);
  padding: 0 var(--gutter);
  position: relative;
  z-index: 100;
}
.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}
.nav-brand {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.01em;
  flex-shrink: 0;
}
.nav-brand span { font-weight: 400; color: var(--muted); }

.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
}
.nav-links a {
  font-size: 14px;
  color: var(--body);
  text-decoration: none;
  font-weight: 400;
  transition: color 0.1s;
  white-space: nowrap;
}
.nav-links a:hover,
.nav-links a.active { color: var(--ink); font-weight: 500; }

/* Hamburger — hidden on desktop */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  flex-shrink: 0;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: all 0.2s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile drawer */
.nav-drawer {
  display: none;
  position: absolute;
  top: 56px; left: 0; right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--rule);
  padding: 8px var(--gutter) 16px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.07);
}
.nav-drawer.open { display: block; }
.nav-drawer ul { list-style: none; }
.nav-drawer ul li { border-bottom: 1px solid var(--rule); }
.nav-drawer ul li:last-child { border-bottom: none; }
.nav-drawer ul a {
  display: block;
  padding: 14px 0;
  font-size: 16px;
  color: var(--body);
  text-decoration: none;
}
.nav-drawer ul a.active { color: var(--ink); font-weight: 500; }

/* ── Footer ── */
footer {
  border-top: 1px solid var(--rule);
  padding: 28px var(--gutter);
  margin-top: 80px;
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-left { font-size: 13px; color: var(--muted); }
.footer-left strong { color: var(--body); }
.footer-right { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-right a { font-size: 13px; color: var(--muted); text-decoration: none; }
.footer-right a:hover { color: var(--body); }

/* ── Page header ── */
.page-top {
  padding: 48px 0 36px;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 48px;
}
.page-top .eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 12px;
}
.page-top h1 {
  font-family: var(--serif);
  font-size: clamp(22px, 5vw, 36px);
  font-weight: 600;
  color: var(--ink);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.page-top h1 em { font-style: italic; font-weight: 400; }
.page-top .lead {
  font-size: 16px;
  color: var(--body);
  font-weight: 300;
  max-width: 600px;
  line-height: 1.7;
}
.cta-row {
  margin-top: 24px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ── Section ── */
.section { margin-bottom: 52px; }
.section-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 20px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rule);
}
h2 {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}
h3 {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 8px;
}
p { margin-bottom: 16px; font-size: 15px; }
p:last-child { margin-bottom: 0; }

/* ── Links ── */
a { color: var(--accent2); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Buttons ── */
.btn {
  display: inline-block;
  padding: 10px 22px;
  background: var(--accent);
  color: white;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  border-radius: 4px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background 0.15s;
  white-space: nowrap;
}
.btn:hover { background: var(--accent2); text-decoration: none; }
.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--accent);
}
.btn-outline:hover { background: var(--accent); color: white; }

/* ── Cards ── */
.card {
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 24px 28px;
  margin-bottom: 16px;
}
.card h3 { margin-bottom: 6px; }
.card .meta {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 10px;
  letter-spacing: 0.06em;
}
.card p { font-size: 14px; color: var(--body); }

/* ── Grids ── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }

/* ── Tool cards ── */
.tool-card {
  background: var(--white);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--accent);
  border-radius: 0 6px 6px 0;
  padding: 22px 26px;
  margin-bottom: 14px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  transition: border-left-color 0.15s;
}
.tool-card:hover { border-left-color: var(--accent2); }
.tool-card-body { flex: 1; min-width: 0; }
.tool-card-body h3 { font-size: 16px; margin-bottom: 4px; }
.tool-card-body p  { font-size: 13.5px; color: var(--body); margin: 0; }
.tool-card-body .tag {
  display: inline-block;
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--paper);
  padding: 2px 8px;
  border-radius: 3px;
}
.tool-card-action { flex-shrink: 0; padding-top: 2px; }

/* ── Divider ── */
hr { border: none; border-top: 1px solid var(--rule); margin: 36px 0; }

/* ── Contact ── */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; align-items: start; }
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 6px;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px 13px;
  border: 1.5px solid var(--rule);
  border-radius: 4px;
  font-family: var(--sans);
  font-size: 16px; /* prevents iOS zoom */
  color: var(--ink);
  background: var(--white);
  outline: none;
  transition: border-color 0.15s;
  -webkit-appearance: none;
  appearance: none;
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--accent2); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-note { font-size: 13px; color: var(--muted); margin-top: 8px; }

/* ── CTA card ── */
.cta-card {
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 36px 28px;
  text-align: center;
}
.cta-card p { font-size: 15px; color: var(--body); max-width: 480px; margin: 0 auto 24px; }

/* ── Mobile notice for calculators ── */
.mobile-notice {
  display: none;
  padding: 32px 20px;
  text-align: center;
}
.mobile-notice-inner {
  background: var(--white);
  border: 1px solid var(--rule);
  border-top: 3px solid var(--accent);
  border-radius: 6px;
  padding: 28px 24px;
}
.mobile-notice-inner h2 {
  font-family: var(--serif);
  font-size: 20px;
  color: var(--ink);
  margin-bottom: 10px;
}
.mobile-notice-inner p {
  font-size: 14px;
  color: var(--body);
  margin-bottom: 20px;
  line-height: 1.65;
}
.calculator-wrap { display: block; }

/* ════════════════════════════════
   RESPONSIVE
   ════════════════════════════════ */

/* Tablet */
@media (max-width: 768px) {
  .nav-links  { display: none; }
  .nav-toggle { display: flex; }

  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr; gap: 12px; }
  .contact-grid { grid-template-columns: 1fr; gap: 24px; }

  .page-top { padding: 36px 0 28px; margin-bottom: 36px; }
  .card { padding: 18px 20px; }
  .tool-card { padding: 18px 20px; }
  footer { margin-top: 52px; }
}

/* Mobile */
@media (max-width: 480px) {
  :root { --gutter: 16px; }

  .nav-brand { font-size: 15px; }

  .grid-3 { grid-template-columns: 1fr; }

  .page-top { padding: 24px 0 20px; margin-bottom: 28px; }
  .page-top .lead { font-size: 15px; }

  .section { margin-bottom: 36px; }
  .card { padding: 16px 18px; }

  .tool-card { flex-direction: column; gap: 12px; }
  .tool-card-action .btn { display: block; text-align: center; }

  .footer-inner { flex-direction: column; align-items: flex-start; }

  .cta-card { padding: 24px 18px; }
  .cta-card .btn { display: block; width: 100%; text-align: center; }

  /* Calculator: hide tool, show notice */
  .mobile-notice  { display: block; }
  .calculator-wrap { display: none; }
}