/* ===========================
   VIC Stamp Duty — Stylesheet
   =========================== */

:root {
  --navy: #0b1f3a;
  --navy-mid: #122847;
  --blue: #1a5fac;
  --blue-light: #2370cc;
  --accent: #f0a500;
  --accent-light: #ffc94d;
  --green: #1a8c4e;
  --green-light: #e6f5ee;
  --white: #ffffff;
  --off-white: #f6f8fc;
  --grey-100: #f0f4f9;
  --grey-200: #e1e9f3;
  --grey-400: #94a8c4;
  --grey-600: #4a6080;
  --grey-800: #1e3050;
  --text: #1a2b42;
  --text-muted: #5a7090;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(11,31,58,0.10);
  --shadow-lg: 0 8px 48px rgba(11,31,58,0.18);
  --transition: 0.22s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* ---- TYPOGRAPHY ---- */
h1, h2, h3, h4 {
  font-family: 'Syne', sans-serif;
  line-height: 1.18;
  color: var(--navy);
}
h1 { font-size: clamp(2.4rem, 6vw, 4rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 600; }
p { line-height: 1.72; }
a { color: var(--blue); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--blue-light); text-decoration: underline; }

/* ---- LAYOUT ---- */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- NAV ---- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--navy);
  border-bottom: 2px solid var(--accent);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}
.logo-mark {
  background: var(--accent);
  color: var(--navy);
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 0.9rem;
  padding: 3px 8px;
  border-radius: 6px;
  letter-spacing: 0.05em;
}
.logo-text {
  color: var(--white);
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1rem;
}
.nav-links {
  display: flex;
  list-style: none;
  gap: 8px;
}
.nav-link {
  color: var(--grey-400);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 8px;
  text-decoration: none;
  transition: all var(--transition);
}
.nav-link:hover, .nav-link.active {
  color: var(--white);
  background: rgba(255,255,255,0.10);
  text-decoration: none;
}
.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ---- HERO ---- */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, #0d2a50 60%, #1a3d6e 100%);
  padding: 80px 0 100px;
  position: relative;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(ellipse 600px 400px at 80% 50%, rgba(240,165,0,0.08) 0%, transparent 70%),
    radial-gradient(ellipse 400px 600px at 10% 80%, rgba(26,95,172,0.15) 0%, transparent 60%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero-badge {
  display: inline-block;
  background: rgba(240,165,0,0.15);
  color: var(--accent-light);
  border: 1px solid rgba(240,165,0,0.3);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 50px;
  margin-bottom: 24px;
}
.hero-title {
  color: var(--white);
  margin-bottom: 20px;
}
.hero-title .accent {
  color: var(--accent);
  display: inline-block;
  position: relative;
}
.hero-sub {
  color: rgba(255,255,255,0.72);
  font-size: 1.1rem;
  max-width: 560px;
  margin-bottom: 32px;
}
.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.hero-trust span {
  color: rgba(255,255,255,0.85);
  font-size: 0.85rem;
  font-weight: 500;
  background: rgba(255,255,255,0.08);
  padding: 6px 14px;
  border-radius: 50px;
  border: 1px solid rgba(255,255,255,0.12);
}

/* ---- CALCULATOR ---- */
.calc-section {
  margin-top: -50px;
  padding-bottom: 80px;
  position: relative;
  z-index: 2;
}
.calc-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  border: 1px solid var(--grey-200);
}
.calc-header {
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-light) 100%);
  padding: 28px 36px;
  color: var(--white);
}
.calc-header h2 {
  color: var(--white);
  font-size: 1.4rem;
  margin-bottom: 4px;
}
.calc-header p { color: rgba(255,255,255,0.75); font-size: 0.95rem; }
.calc-body { padding: 36px; }

.form-group { margin-bottom: 28px; }
label {
  display: block;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--navy);
  margin-bottom: 8px;
}
.req { color: var(--blue); }
.select-wrap { position: relative; }
.select-wrap::after {
  content: '▾';
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--grey-400);
  pointer-events: none;
  font-size: 1rem;
}
select {
  width: 100%;
  padding: 14px 44px 14px 16px;
  border: 2px solid var(--grey-200);
  border-radius: var(--radius);
  font-size: 1rem;
  color: var(--text);
  background: var(--white);
  appearance: none;
  cursor: pointer;
  transition: border-color var(--transition);
  font-family: inherit;
}
select:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(26,95,172,0.12);
}
.input-prefix-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.input-prefix {
  position: absolute;
  left: 16px;
  color: var(--grey-600);
  font-weight: 600;
  font-size: 1rem;
  z-index: 1;
}
input[type="number"] {
  width: 100%;
  padding: 14px 16px 14px 36px;
  border: 2px solid var(--grey-200);
  border-radius: var(--radius);
  font-size: 1rem;
  color: var(--text);
  background: var(--white);
  transition: border-color var(--transition);
  font-family: inherit;
}
input[type="number"]:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(26,95,172,0.12);
}
input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; }
.field-help {
  margin-top: 6px;
  font-size: 0.82rem;
  color: var(--text-muted);
}
.field-hint {
  margin-top: 8px;
  font-size: 0.85rem;
  color: var(--green);
  font-weight: 500;
  min-height: 1.2em;
}

.btn-calc {
  width: 100%;
  padding: 16px 32px;
  background: linear-gradient(135deg, var(--accent) 0%, #d4940a 100%);
  color: var(--navy);
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.02em;
}
.btn-calc:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(240,165,0,0.35);
}
.btn-calc:active { transform: translateY(0); }

/* RESULT */
.calc-result {
  border-top: 2px solid var(--grey-200);
  animation: slideIn 0.35s ease;
}
@keyframes slideIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}
.result-inner { padding: 36px; }
.result-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 8px;
}
.result-amount {
  font-family: 'Syne', sans-serif;
  font-size: 3rem;
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 16px;
  line-height: 1;
}
.result-breakdown {
  background: var(--off-white);
  border-radius: var(--radius);
  padding: 16px 20px;
  font-size: 0.9rem;
  line-height: 1.8;
  margin-bottom: 16px;
  border-left: 4px solid var(--blue);
}
.result-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.6;
  background: var(--grey-100);
  padding: 12px 16px;
  border-radius: 8px;
}
.calc-error {
  padding: 16px 36px;
  color: #c0392b;
  background: #fff0ee;
  border-top: 2px solid #f5c6c0;
  font-size: 0.9rem;
  font-weight: 500;
}

/* QUICK EXAMPLES */
.examples-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 20px;
}
.examples-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
}
.example-btn {
  padding: 8px 16px;
  background: var(--white);
  border: 1.5px solid var(--grey-200);
  border-radius: 50px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--blue);
  cursor: pointer;
  transition: all var(--transition);
  font-family: inherit;
}
.example-btn:hover {
  background: var(--blue);
  color: var(--white);
  border-color: var(--blue);
  transform: translateY(-1px);
}

/* ---- HOW IT WORKS ---- */
.how-section {
  padding: 80px 0;
  background: var(--off-white);
}
.section-title {
  margin-bottom: 16px;
}
.section-intro {
  max-width: 720px;
  color: var(--text-muted);
  margin-bottom: 48px;
  font-size: 1.02rem;
}
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 36px;
}
.info-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid var(--grey-200);
  transition: box-shadow var(--transition);
}
.info-card:hover { box-shadow: var(--shadow); }
.info-icon { font-size: 2rem; margin-bottom: 12px; }
.info-card h3 { margin-bottom: 8px; }
.info-card p { font-size: 0.93rem; color: var(--text-muted); }
.deadline-box {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: #fff8e6;
  border: 1.5px solid var(--accent);
  border-radius: var(--radius);
  padding: 20px 24px;
  font-size: 0.95rem;
}
.deadline-icon { font-size: 1.5rem; flex-shrink: 0; margin-top: 2px; }

/* ---- RATES TABLE ---- */
.rates-section {
  padding: 80px 0;
  background: var(--white);
}
.table-container {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--grey-200);
  box-shadow: var(--shadow);
  margin-bottom: 20px;
}
.rates-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.93rem;
}
.rates-table caption {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: left;
  padding: 10px 0;
  caption-side: bottom;
}
.rates-table th {
  background: var(--navy);
  color: var(--white);
  padding: 14px 20px;
  text-align: left;
  font-family: 'Syne', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.rates-table td {
  padding: 13px 20px;
  border-bottom: 1px solid var(--grey-200);
  vertical-align: middle;
}
.rates-table tbody tr:last-child td { border-bottom: none; }
.rates-table tbody tr:hover { background: var(--grey-100); }
.row-highlight { background: var(--off-white); }
.row-green { background: var(--green-light); }
.row-green td:first-child { color: var(--green); }
.table-footnotes {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.8;
}
.table-footnotes p { margin-bottom: 4px; }

/* ---- EXAMPLES ---- */
.examples-section {
  padding: 80px 0;
  background: var(--off-white);
}
.examples-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.example-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid var(--grey-200);
  box-shadow: var(--shadow);
}
.eg-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 12px;
  border-radius: 50px;
  margin-bottom: 12px;
}
.eg-badge.passenger { background: #e3ecf9; color: var(--blue); }
.eg-badge.luxury { background: #fff0e6; color: #b85c00; }
.eg-badge.green { background: var(--green-light); color: var(--green); }
.eg-badge.moto { background: #f0eff9; color: #5a3fa0; }
.example-card h3 { font-size: 1rem; margin-bottom: 16px; }
.eg-steps {
  padding-left: 20px;
  margin-bottom: 16px;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.9;
}
.eg-result {
  background: var(--navy);
  color: var(--white);
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 0.95rem;
  text-align: center;
}
.eg-result strong { color: var(--accent-light); }

/* ---- INFO SECTION ---- */
.info-section {
  padding: 80px 0;
  background: var(--white);
}
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.two-col-text h2 { margin-bottom: 16px; }
.two-col-text p { color: var(--text-muted); margin-bottom: 24px; }
.two-col-text h3 { margin: 20px 0 10px; font-size: 1rem; }
.two-col-text ul {
  padding-left: 20px;
  color: var(--text-muted);
  font-size: 0.93rem;
  line-height: 1.9;
}
.two-col-aside { display: flex; flex-direction: column; gap: 16px; }
.aside-card {
  background: var(--off-white);
  border-radius: var(--radius);
  padding: 20px;
  border-left: 4px solid var(--blue);
}
.aside-card h3 { font-size: 0.95rem; margin-bottom: 8px; }
.aside-card p { font-size: 0.88rem; color: var(--text-muted); }

/* ---- EXEMPTIONS ---- */
.exemptions-section {
  padding: 80px 0;
  background: var(--navy);
}
.exemptions-section .section-title,
.exemptions-section .section-intro { color: var(--white); }
.exemptions-section .section-intro { color: rgba(255,255,255,0.68); }
.exemption-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.exemption-card {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  padding: 28px;
  transition: background var(--transition);
}
.exemption-card:hover { background: rgba(255,255,255,0.11); }
.exemption-icon { font-size: 2rem; margin-bottom: 12px; }
.exemption-card h3 { color: var(--white); margin-bottom: 10px; }
.exemption-card p { color: rgba(255,255,255,0.65); font-size: 0.88rem; }

/* ---- FAQ ---- */
.faq-section {
  padding: 80px 0;
  background: var(--off-white);
}
.faq-list { max-width: 820px; }
.faq-item {
  background: var(--white);
  border: 1px solid var(--grey-200);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: box-shadow var(--transition);
}
.faq-item:hover { box-shadow: var(--shadow); }
.faq-item summary {
  padding: 20px 24px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.97rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--blue);
  font-weight: 400;
  flex-shrink: 0;
  margin-left: 16px;
  transition: transform var(--transition);
}
.faq-item[open] summary::after {
  content: '−';
}
.faq-item p {
  padding: 0 24px 20px;
  font-size: 0.93rem;
  color: var(--text-muted);
  border-top: 1px solid var(--grey-200);
  padding-top: 16px;
}

/* ---- BLOG CTA ---- */
.blog-cta-section { padding: 60px 0; background: var(--white); }
.blog-cta-card {
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-light) 100%);
  border-radius: var(--radius-lg);
  padding: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.blog-cta-text h2, .blog-cta-text p { color: var(--white); }
.blog-cta-text p { color: rgba(255,255,255,0.75); margin-top: 8px; max-width: 480px; }
.btn-secondary {
  display: inline-block;
  padding: 14px 28px;
  background: var(--white);
  color: var(--blue);
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: var(--radius);
  text-decoration: none;
  white-space: nowrap;
  transition: all var(--transition);
}
.btn-secondary:hover {
  background: var(--accent);
  color: var(--navy);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
  text-decoration: none;
}

/* ---- FOOTER ---- */
.footer {
  background: var(--navy);
  border-top: 3px solid var(--accent);
  padding: 60px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-desc {
  color: rgba(255,255,255,0.55);
  font-size: 0.9rem;
  margin-top: 16px;
  max-width: 300px;
}
.footer-col h4 {
  color: var(--white);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
  font-family: 'Syne', sans-serif;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
  color: rgba(255,255,255,0.55);
  font-size: 0.88rem;
  text-decoration: none;
  transition: color var(--transition);
}
.footer-col ul li a:hover { color: var(--accent-light); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.10);
  padding-top: 28px;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.38);
  line-height: 1.7;
}
.footer-bottom a { color: rgba(255,255,255,0.55); }
.footer-bottom a:hover { color: var(--accent-light); }

/* ---- BLOG PAGE ---- */
.blog-hero {
  background: var(--navy);
  padding: 60px 0 48px;
}
.blog-hero h1 { color: var(--white); font-size: clamp(1.8rem, 4vw, 2.6rem); margin-bottom: 10px; }
.blog-hero p { color: rgba(255,255,255,0.65); }
.breadcrumb {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.45);
  margin-bottom: 20px;
}
.breadcrumb a { color: rgba(255,255,255,0.6); text-decoration: none; }
.breadcrumb a:hover { color: var(--accent-light); }
.breadcrumb span { margin: 0 6px; }

.blog-grid-section { padding: 60px 0 80px; background: var(--off-white); }
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px;
}
.blog-card {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--grey-200);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
  text-decoration: none;
}
.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  text-decoration: none;
}
.blog-card-img {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  background: linear-gradient(135deg, var(--navy) 0%, #1a3d6e 100%);
}
.blog-card-body { padding: 24px; flex: 1; }
.blog-tag {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
  color: var(--blue);
  margin-bottom: 10px;
  display: block;
}
.blog-card-body h3 {
  font-size: 1.05rem;
  margin-bottom: 10px;
  color: var(--navy);
  line-height: 1.35;
}
.blog-card-body p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.7; }
.blog-card-meta {
  padding: 14px 24px;
  border-top: 1px solid var(--grey-200);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.read-more-link { color: var(--blue); font-weight: 600; }

/* ---- ARTICLE PAGE ---- */
.article-hero {
  background: linear-gradient(135deg, var(--navy) 0%, #12335e 100%);
  padding: 60px 0 48px;
}
.article-hero-tag {
  display: inline-block;
  background: rgba(240,165,0,0.15);
  color: var(--accent-light);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 50px;
  margin-bottom: 16px;
  border: 1px solid rgba(240,165,0,0.25);
}
.article-hero h1 {
  color: var(--white);
  max-width: 760px;
  margin-bottom: 16px;
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
}
.article-hero-meta { color: rgba(255,255,255,0.55); font-size: 0.88rem; }
.article-hero-meta span { margin-right: 20px; }

.article-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  padding: 60px 0 80px;
  background: var(--off-white);
  align-items: start;
}
.article-layout .container {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: start;
}
.article-body {
  background: var(--white);
  border-radius: var(--radius);
  padding: 44px;
  border: 1px solid var(--grey-200);
  box-shadow: var(--shadow);
}
.article-body h2 { font-size: 1.5rem; margin: 36px 0 14px; padding-top: 8px; border-top: 2px solid var(--grey-200); }
.article-body h2:first-child { border-top: none; margin-top: 0; }
.article-body h3 { font-size: 1.1rem; margin: 24px 0 10px; color: var(--blue); }
.article-body p { color: var(--text-muted); margin-bottom: 18px; font-size: 0.97rem; }
.article-body ul, .article-body ol {
  padding-left: 22px;
  margin-bottom: 18px;
  color: var(--text-muted);
  font-size: 0.97rem;
  line-height: 1.9;
}
.article-body strong { color: var(--text); }
.article-body a { color: var(--blue); }
.article-placeholder {
  background: var(--grey-100);
  border: 2px dashed var(--grey-200);
  border-radius: 8px;
  padding: 28px;
  margin: 28px 0;
  font-style: italic;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
}
.article-placeholder strong { display: block; margin-bottom: 8px; color: var(--grey-600); font-style: normal; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.06em; }

.article-sidebar { position: sticky; top: 80px; }
.sidebar-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--grey-200);
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}
.sidebar-card h4 {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.toc-list { list-style: none; }
.toc-list li { margin-bottom: 8px; }
.toc-list a { font-size: 0.88rem; color: var(--blue); text-decoration: none; }
.toc-list a:hover { text-decoration: underline; }
.sidebar-calc-btn {
  display: block;
  text-align: center;
  padding: 14px;
  background: var(--accent);
  color: var(--navy);
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  border-radius: var(--radius);
  text-decoration: none;
  font-size: 0.95rem;
  transition: all var(--transition);
}
.sidebar-calc-btn:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  text-decoration: none;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 900px) {
  .two-col { grid-template-columns: 1fr; gap: 36px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid .footer-col:first-child { grid-column: 1 / -1; }
  .article-layout .container { grid-template-columns: 1fr; }
  .article-sidebar { position: static; }
}
@media (max-width: 640px) {
  .nav-links { display: none; }
  .nav-burger { display: flex; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--navy);
    padding: 16px;
    gap: 4px;
    border-bottom: 2px solid var(--accent);
  }
  .hero { padding: 60px 0 80px; }
  .calc-body, .result-inner { padding: 24px; }
  .calc-header { padding: 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .blog-cta-card { padding: 32px; }
  .article-body { padding: 28px; }
  .examples-strip { gap: 8px; }
}