/* Vanderflip Financial — Design System v2 */
/* Fonts: Barlow (logo), Crimson Pro (body), Raleway (nav/labels), Playfair Display (headlines) */

:root {
  --color-primary: #1F1F1F;
  --color-accent: #B5956A;
  --color-bg: #FAF7F2;
  --color-card: #ffffff;
  --color-card-shadow: 0 1px 8px rgba(0,0,0,0.04);
  --color-text: #1F1F1F;
  --color-muted: #6B6560;
  --color-border: #E5DDD0;
  --color-accent-light: #F3EDE3;
  --color-primary-light: #FAF7F2;
  --radius-card: 10px;
  --radius-btn: 6px;
  --max-width: 1200px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Crimson Pro', Georgia, serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.75;
  font-size: 17px;
  font-weight: 400;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Playfair Display', Georgia, serif;
  color: var(--color-primary);
  line-height: 1.25;
  font-weight: 700;
}
h1 { font-size: 2.6rem; margin-bottom: 1rem; }
h2 { font-size: 1.85rem; margin: 2.5rem 0 1rem; }
h3 { font-size: 1.35rem; margin: 2rem 0 0.75rem; }

a { color: var(--color-accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: #8C7350; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem; }

/* ─── Header ─── */
.site-header {
  background: var(--color-bg);
  position: sticky; top: 0; z-index: 100;
  border-bottom: 1px solid var(--color-border);
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 0.9rem; padding-bottom: 0.9rem;
}
.site-header .logo {
  display: flex; flex-direction: column; line-height: 1.1;
  text-decoration: none; gap: 0;
}
.site-header .logo .brand {
  font-family: 'Barlow', sans-serif;
  font-weight: 800; font-size: 1.3rem;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--color-primary);
}
.site-header .logo .dot { display: none; }
.site-header .logo .financial {
  font-family: 'Crimson Pro', serif;
  font-weight: 300; font-style: italic;
  font-size: 0.95rem; color: var(--color-accent);
  letter-spacing: 0.04em;
}
.site-header nav {
  display: flex; align-items: center; gap: 0;
}
.site-header nav a {
  font-family: 'Raleway', sans-serif;
  color: var(--color-muted); margin-left: 1.8rem;
  font-size: 0.88rem; font-weight: 500;
  letter-spacing: 0.03em; text-transform: uppercase;
  white-space: nowrap;
}
.site-header nav a:hover { color: var(--color-accent); }

/* ─── Hamburger ─── */
.hamburger {
  display: none; background: none; border: none; cursor: pointer;
  padding: 0.5rem; margin-left: auto;
}
.hamburger span {
  display: block; width: 22px; height: 2px;
  background: var(--color-primary); margin: 5px 0;
  border-radius: 2px; transition: all 0.3s ease;
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
.mobile-nav {
  display: none; background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  overflow: hidden; max-height: 0;
  transition: max-height 0.35s ease;
}
.mobile-nav.open { max-height: 500px; }
.mobile-nav a {
  display: block; color: var(--color-text);
  padding: 0.85rem 1.5rem; font-size: 0.95rem;
  border-bottom: 1px solid var(--color-border);
  font-family: 'Raleway', sans-serif; font-weight: 500;
  letter-spacing: 0.02em;
}
.mobile-nav a:hover { color: var(--color-accent); background: var(--color-accent-light); }

/* ─── Hero ─── */
.hero {
  background: var(--color-primary);
  color: #fff; padding: 4rem 0; text-align: center;
}
.hero h1 {
  color: #fff; font-size: 2.8rem;
  font-family: 'Playfair Display', serif;
}
.hero p {
  color: rgba(255,255,255,0.75); font-size: 1.15rem;
  max-width: 640px; margin: 1rem auto 2rem;
  font-family: 'Crimson Pro', serif; font-weight: 300;
}
.hero em, .hero i { color: var(--color-accent); font-style: italic; }

/* ─── Cards ─── */
.card {
  background: var(--color-card);
  border-radius: var(--radius-card);
  box-shadow: var(--color-card-shadow);
  padding: 2rem;
  margin-bottom: 1.5rem;
  border: 1px solid var(--color-border);
}
.card h2, .card h3 { font-family: 'Playfair Display', serif; }

/* ─── Calculator ─── */
.calc-section { padding: 3rem 0; }
.calc-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 2rem; align-items: start;
}
.calc-input-group { margin-bottom: 1.25rem; }
.calc-input-group label {
  display: block; margin-bottom: 0.4rem;
  font-family: 'Raleway', sans-serif;
  font-size: 0.9rem; font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.02em; text-transform: uppercase;
}
.calc-input-group input,
.calc-input-group select {
  width: 100%; padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-btn);
  font-size: 1rem; font-family: 'Crimson Pro', serif;
  background: var(--color-bg);
  transition: border-color 0.2s;
}
.calc-input-group input:focus,
.calc-input-group select:focus {
  outline: none; border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(181,149,106,0.15);
}

.btn-calculate {
  background: var(--color-primary);
  color: #fff; border: none;
  padding: 0.9rem 2.5rem;
  font-family: 'Raleway', sans-serif;
  font-size: 0.95rem; font-weight: 700;
  letter-spacing: 0.06em; text-transform: uppercase;
  border-radius: var(--radius-btn);
  cursor: pointer; transition: background 0.2s;
  width: 100%;
}
.btn-calculate:hover { background: #333; }

.results-card {
  background: var(--color-bg);
  border: none;
  border-left: 4px solid var(--color-accent);
}
.result-row {
  display: flex; justify-content: space-between;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.98rem;
}
.result-row:last-child { border-bottom: none; }
.result-row .label { color: var(--color-muted); font-family: 'Crimson Pro', serif; }
.result-row .value {
  font-family: 'Playfair Display', serif;
  font-weight: 700; color: var(--color-accent);
}
.result-row.total {
  font-size: 1.15rem; padding-top: 1rem;
  border-top: 2px solid var(--color-primary);
}

/* ─── Tables ─── */
.brackets-table {
  width: 100%; border-collapse: collapse;
  margin: 1rem 0;
}
.brackets-table th {
  background: var(--color-primary);
  color: #fff; padding: 0.75rem 1rem;
  text-align: left;
  font-family: 'Raleway', sans-serif;
  font-size: 0.82rem; font-weight: 600;
  letter-spacing: 0.04em; text-transform: uppercase;
}
.brackets-table td {
  padding: 0.65rem 1rem;
  border-bottom: 1px solid var(--color-border);
  font-family: 'Crimson Pro', serif;
}
.brackets-table tr:nth-child(even) { background: var(--color-bg); }
.brackets-table tr:nth-child(odd) { background: #fff; }

.comparison-table {
  width: 100%; border-collapse: collapse;
  margin: 1.5rem 0;
}
.comparison-table th {
  background: var(--color-primary);
  color: #fff; padding: 1rem;
  font-family: 'Raleway', sans-serif;
  font-size: 0.82rem; font-weight: 600;
  letter-spacing: 0.04em; text-transform: uppercase;
  position: sticky; top: 56px;
}
.comparison-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
  font-family: 'Crimson Pro', serif;
}
.comparison-table tr:nth-child(even) { background: var(--color-bg); }
.comparison-table tr:hover { background: var(--color-accent-light); }
.badge-best {
  display: inline-block; background: var(--color-accent);
  color: #fff; padding: 0.2rem 0.6rem;
  border-radius: 4px; font-size: 0.72rem; font-weight: 700;
  font-family: 'Raleway', sans-serif; letter-spacing: 0.03em; text-transform: uppercase;
}

/* ─── FAQ Accordion ─── */
.faq-section { padding: 3rem 0; }
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-btn);
  margin-bottom: 0.75rem;
  overflow: hidden;
}
.faq-question {
  width: 100%; background: var(--color-card);
  border: none; padding: 1.1rem 1.25rem;
  text-align: left; cursor: pointer;
  font-family: 'Playfair Display', serif;
  font-size: 1.05rem; font-weight: 700;
  color: var(--color-primary);
  display: flex; justify-content: space-between; align-items: center;
}
.faq-question::after { content: '+'; font-size: 1.4rem; color: var(--color-accent); }
.faq-question.active::after { content: '\2212'; }
.faq-answer {
  max-height: 0; overflow: hidden;
  transition: max-height 0.3s ease;
  padding: 0 1.25rem;
  background: var(--color-card);
}
.faq-answer.open { max-height: 500px; padding-bottom: 1.25rem; }
.faq-answer p { color: var(--color-muted); line-height: 1.7; }

/* ─── Ad Units ─── */
.ad-unit {
  background: var(--color-accent-light);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-btn);
  padding: 1rem; margin: 2rem 0;
  text-align: center; min-height: 90px;
}

/* ─── Affiliate CTA ─── */
.affiliate-cta {
  background: var(--color-primary);
  color: #fff; border-radius: var(--radius-card);
  padding: 2.5rem; text-align: center;
  margin: 2.5rem 0;
}
.affiliate-cta h3 {
  color: var(--color-accent); margin-bottom: 0.75rem;
  font-family: 'Playfair Display', serif;
}
.affiliate-cta p { color: rgba(255,255,255,0.75); margin-bottom: 1.5rem; }
.affiliate-cta .btn {
  display: inline-block; background: var(--color-accent);
  color: #fff; padding: 0.85rem 2rem;
  border-radius: var(--radius-btn);
  font-family: 'Raleway', sans-serif;
  font-weight: 700; font-size: 0.9rem;
  letter-spacing: 0.04em; text-transform: uppercase;
}
.affiliate-cta .btn:hover { background: #8C7350; color: #fff; }

/* ─── FTC Disclosure ─── */
.ftc-disclosure {
  background: var(--color-accent-light);
  border-left: 3px solid var(--color-accent);
  padding: 1rem 1.25rem; margin: 1.5rem 0;
  font-size: 0.82rem; color: var(--color-muted);
  border-radius: 0 var(--radius-btn) var(--radius-btn) 0;
}

/* ─── Footer ─── */
.site-footer {
  background: var(--color-primary);
  color: rgba(255,255,255,0.65);
  padding: 3rem 0 2rem;
  margin-top: 4rem;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem; margin-bottom: 2rem;
}
.footer-col h4 {
  color: var(--color-accent);
  font-family: 'Raleway', sans-serif;
  font-weight: 700; font-size: 0.8rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  margin-bottom: 1rem;
}
.footer-col p { font-family: 'Crimson Pro', serif; }
.footer-col a {
  color: rgba(255,255,255,0.55); display: block;
  margin-bottom: 0.5rem; font-size: 0.9rem;
  font-family: 'Crimson Pro', serif;
}
.footer-col a:hover { color: var(--color-accent); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 1.5rem; text-align: center;
  font-size: 0.82rem;
  font-family: 'Raleway', sans-serif;
  letter-spacing: 0.02em;
}
.expert-persona {
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius-btn);
  padding: 1.25rem; margin-bottom: 2rem;
  display: flex; align-items: center; gap: 1rem;
  border: 1px solid rgba(255,255,255,0.06);
}
.expert-info .name {
  color: #fff; font-weight: 600;
  font-family: 'Raleway', sans-serif; font-size: 0.9rem;
}
.expert-info .title { font-size: 0.82rem; font-family: 'Crimson Pro', serif; }

/* ─── State Grid ─── */
.state-grid {
  display: flex; flex-wrap: wrap; gap: 0.5rem;
  justify-content: center; padding: 2rem 0;
}
.state-pill {
  display: inline-block; padding: 0.4rem 0.9rem;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-family: 'Raleway', sans-serif;
  font-size: 0.82rem; font-weight: 500;
  color: var(--color-primary);
  transition: all 0.2s;
}
.state-pill:hover {
  background: var(--color-primary);
  color: #fff; border-color: var(--color-primary);
}

/* ─── Content Sections ─── */
.content-section { padding: 2.5rem 0; }
.content-section p { margin-bottom: 1rem; }
.content-section ul, .content-section ol {
  margin: 1rem 0 1rem 1.5rem;
}
.content-section li { margin-bottom: 0.5rem; }

/* ─── Responsive ─── */
@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  .hero h1 { font-size: 2.1rem; }
  .calc-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .site-header nav { display: none; }
  .hamburger { display: block; }
  .mobile-nav { display: block; }
  body { font-size: 16px; }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .card { padding: 1.25rem; }
  .hero { padding: 2.5rem 0; }
}