/* Stamp Duty Calculator (UK SDLT / LBTT / LTT) - site-consistent CSS */
/* (Based on your existing calculator CSS, plus small table helpers) */

/* Global layout */
html { scroll-behavior: smooth; height: 100%; }
*, *::before, *::after { box-sizing: border-box; }
body {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  margin: 0;
  padding: 0;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100%;
  height: 100%;
}

/* Header + nav */
.header {
  background: linear-gradient(135deg, #1f2933 0%, #111827 100%);
  backdrop-filter: blur(10px);
  position: sticky; top: 0; z-index: 1000;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
}
.header-inner { position: relative; }

/* Brand */
.brand { text-decoration: none; }
.site-logo { height: 40px; width: auto; display: block; }
.brand-text { color: #ffffff; font-weight: 800; font-size: 1.15rem; }

/* Desktop nav links */
.nav-links { position: absolute; left: 50%; transform: translateX(-50%); }
.nav-link {
  color: #ffffff; text-decoration: none; font-weight: 500;
  transition: all 0.25s ease; display: inline-block;
}
.nav-link:hover { color: #d1fae5; transform: translateY(-1px); }

/* Desktop dropdown */
.dropdown { position: relative; }
.dropdown-toggle {
  background: none; border: none; color: #ffffff; font-weight: 500;
  cursor: pointer; padding: 0; transition: color 0.25s ease;
}
.dropdown-toggle:hover { color: #d1fae5; }
.dropdown-content {
  display: none; position: absolute; top: 120%; right: 0;
  background: #ffffff; min-width: 220px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.35);
  border-radius: 0.75rem; overflow: hidden; z-index: 1100;
}
.dropdown.open .dropdown-content { display: block; }
.dropdown-content a {
  color: #4b5563; padding: 12px 20px; text-decoration: none;
  display: block; font-size: 0.9rem; transition: all 0.2s ease;
}
.dropdown-content a:hover {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #ffffff; padding-left: 26px;
}

/* Mobile hamburger + menu */
.mobile-menu-btn {
  display: none; background: none;
  border: 2px solid #10b981; border-radius: 999px;
  padding: 4px 10px; color: #ecfdf5; font-size: 1.3rem;
  cursor: pointer;
  transition: background 0.25s ease, transform 0.15s ease, border-color 0.25s ease;
}
.mobile-menu-btn:hover { background: #10b981; border-color: #6ee7b7; transform: translateY(-1px); }
.mobile-menu {
  display: none; flex-direction: column; background: #065f46;
  padding: 12px 18px 16px; gap: 4px; border-bottom: 3px solid #10b981;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  color: #ecfdf5; text-decoration: none; padding: 8px 6px;
  border-radius: 6px; font-size: 0.95rem; font-weight: 500;
  transition: background 0.2s ease, transform 0.15s ease;
}
.mobile-menu a:hover { background: rgba(16, 185, 129, 0.2); transform: translateX(2px); }

/* Page header / hero */
.page-header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #ffffff; padding: 80px 20px 90px; text-align: center;
  position: relative; overflow: hidden;
}
.page-header::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at top left, rgba(255, 255, 255, 0.2), transparent 55%);
  opacity: 0.7;
}
.page-header h1 {
  position: relative; z-index: 1;
  font-size: 2.9rem; font-weight: 900; margin-bottom: 12px;
  text-shadow: 0 8px 25px rgba(15, 23, 42, 0.6);
}
.page-header p { position: relative; z-index: 1; font-size: 1.15rem; opacity: 0.96; }

/* Simple animations */
@keyframes float { 0%,100%{transform:translateY(0) rotate(0)} 50%{transform:translateY(-12px) rotate(3deg)} }
.float-animation { animation: float 3s ease-in-out infinite; }

/* Main calculator */
.calculator-container { max-width: 1400px; margin: -60px auto 60px; padding: 0 20px; position: relative; z-index: 10; }
.calculator-card { background: #ffffff; border-radius: 24px; padding: 40px; box-shadow: 0 22px 60px rgba(15, 23, 42, 0.25); margin-bottom: 24px; }
.card-title {
  font-size: 1.7rem; font-weight: 800; color: #4c1d95; margin-bottom: 28px;
  display: flex; align-items: center; gap: 10px;
}

/* Tabs */
.calc-tabs { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 26px; }
.calc-tab {
  padding: 10px 20px; background: #f3f4ff; border: 2px solid #e5e7eb;
  border-radius: 999px; font-weight: 600; cursor: pointer;
  transition: all 0.22s ease; color: #374151; font-size: 0.9rem;
}
.calc-tab:hover { border-color: #667eea; transform: translateY(-1px); }
.calc-tab.active {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #ffffff; border-color: #4f46e5;
}

/* Inputs */
.input-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; margin-bottom: 20px; }
.input-group {
  background: linear-gradient(135deg, #f3f4ff 0%, #e9e4f0 100%);
  padding: 18px; border-radius: 14px; border: 2px solid #667eea; transition: all 0.22s ease;
}
.input-group:hover { transform: translateY(-1px); box-shadow: 0 10px 24px rgba(99, 102, 241, 0.25); }
.input-label {
  font-weight: 700; color: #4c1d95; margin-bottom: 6px; font-size: 0.8rem;
  text-transform: uppercase; letter-spacing: 0.04em;
}
.input-field, .select-field {
  width: 100%; padding: 10px 12px; border-radius: 10px; border: 2px solid #667eea;
  font-size: 0.95rem; font-weight: 500; color: #111827; transition: all 0.2s ease; background: #ffffff;
}
.input-field:focus, .select-field:focus {
  outline: none; border-color: #7c3aed; box-shadow: 0 0 0 3px rgba(129, 140, 248, 0.35);
  transform: scale(1.01);
}

/* Primary calculate button */
.calculate-btn {
  width: 100%; padding: 16px;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #ffffff; border: none; border-radius: 14px;
  font-size: 1.1rem; font-weight: 700; cursor: pointer;
  transition: all 0.22s ease; margin-top: 12px;
}
.calculate-btn:hover { transform: translateY(-1px); box-shadow: 0 12px 30px rgba(16, 185, 129, 0.45); }

/* Results */
.result-display {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 30px; border-radius: 20px; color: #ffffff; margin-bottom: 24px;
}
.result-value { font-size: 3.2rem; font-weight: 900; margin-bottom: 4px; text-align: center; }
.result-label { font-size: 1.25rem; font-weight: 600; text-align: center; opacity: 0.97; margin-bottom: 18px; }

.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 14px; margin-top: 18px; }
.stat-card {
  background: rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(8px);
  padding: 18px; border-radius: 14px; text-align: center;
  border: 2px solid rgba(255, 255, 255, 0.22);
  transition: all 0.22s ease;
}
.stat-card:hover { background: rgba(255, 255, 255, 0.25); transform: translateY(-2px); }
.stat-title {
  font-size: 0.8rem; font-weight: 600; margin-bottom: 6px; opacity: 0.9;
  text-transform: uppercase; letter-spacing: 0.03em;
}
.stat-value { font-size: 1.6rem; font-weight: 900; }
.stat-value-small { font-size: 1rem; line-height: 1.4; }

/* Info / Ads / Downloads */
.adsense-container {
  background: linear-gradient(135deg, #f3f4ff 0%, #e9e4f0 100%);
  border-radius: 16px; padding: 22px; margin: 24px 0;
  min-height: 140px; display: flex; align-items: center; justify-content: center;
  border: 2px dashed #a78bfa;
}
.adsense-placeholder { text-align: center; color: #4c1d95; font-size: 0.9rem; }

.info-box {
  background: linear-gradient(135deg, #f3f4ff 0%, #e9e4f0 100%);
  padding: 18px; border-radius: 12px; border-left: 4px solid #7c3aed; margin-top: 18px;
}
.info-title { font-weight: 700; color: #4c1d95; margin-bottom: 6px; font-size: 0.95rem; }
.info-text { color: #5b21b6; font-size: 0.9rem; line-height: 1.6; }

.download-buttons { display: flex; gap: 12px; margin-top: 22px; flex-wrap: wrap; }
.download-btn {
  flex: 1; min-width: 180px; padding: 12px 20px;
  background: linear-gradient(135deg, #6366f1 0%, #7c3aed 100%);
  color: #ffffff; border: none; border-radius: 12px; font-weight: 600;
  cursor: pointer; transition: all 0.2s ease;
  display: flex; align-items: center; justify-content: center; gap: 8px; font-size: 0.95rem;
}
.download-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4); }

/* Breakdown table helpers */
.breakdown-wrap { margin-top: 14px; overflow-x: auto; }
.breakdown-table {
  width: 100%;
  border-collapse: collapse;
  border-radius: 12px;
  overflow: hidden;
  background: rgba(255,255,255,0.98);
  border: 2px solid rgba(99, 102, 241, 0.25);
}
.breakdown-table th, .breakdown-table td {
  padding: 10px 12px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.35);
  text-align: left;
  font-size: 0.92rem;
  color: #111827;
}
.breakdown-table th {
  background: linear-gradient(135deg, rgba(99,102,241,0.15), rgba(168,85,247,0.12));
  color: #4c1d95;
  font-weight: 800;
}
.breakdown-table tr:last-child td { border-bottom: none; }
.breakdown-muted { color: rgba(255,255,255,0.9); font-size: 0.95rem; text-align: center; }

/* Blog / SEO content */
.blog-section { max-width: 900px; margin: 70px auto; padding: 0 20px; }
.blog-content {
  background: #ffffff; border-radius: 24px; padding: 40px;
  box-shadow: 0 14px 36px rgba(15, 23, 42, 0.18);
  line-height: 1.75;
}
.blog-content h2 {
  font-size: 2.1rem; font-weight: 900; margin-bottom: 20px;
  background: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.blog-content h3 { font-size: 1.3rem; font-weight: 700; color: #111827; margin-top: 32px; margin-bottom: 12px; }
.blog-content h4 { font-size: 1.05rem; font-weight: 600; color: #1f2933; margin-top: 16px; margin-bottom: 6px; }
.blog-content p { color: #4b5563; font-size: 0.98rem; margin-bottom: 14px; }
.blog-content ul { margin-left: 1.3rem; margin-bottom: 14px; color: #4b5563; }
.blog-content li { margin-bottom: 6px; }
.blog-content a { color: #2563eb; text-decoration: none; font-weight: 500; }
.blog-content a:hover { text-decoration: underline; }
.highlight-box { background: #f3f4ff; padding: 16px; border-radius: 14px; border-left: 4px solid #6366f1; margin: 20px 0; font-size: 0.94rem; }

/* FAQ */
.faq-item { margin-top: 16px; padding-top: 10px; border-top: 1px solid #e5e7eb; }
.faq-item h4 { font-size: 1rem; font-weight: 700; color: #111827; margin-bottom: 6px; }
.faq-item p { font-size: 0.95rem; color: #4b5563; }

/* Footer */
.footer {
  background: linear-gradient(135deg, #1f2937 0%, #030712 100%);
  color: #ffffff; padding: 50px 0 18px; margin-top: 80px;
}
.footer-column h3 {
  font-size: 0.95rem; font-weight: 700; margin-bottom: 12px;
  color: #9ca3af; text-transform: uppercase; letter-spacing: 0.06em;
}
.footer-column ul { list-style: none; padding: 0; margin: 0; }
.footer-column ul li { margin-bottom: 8px; }
.footer-column ul li a {
  color: #e5e7eb; text-decoration: none; font-size: 0.9rem;
  transition: all 0.2s ease; display: inline-block;
}
.footer-column ul li a:hover { color: #22c55e; transform: translateX(4px); }
.footer-bottom {
  border-top: 1px solid rgba(148, 163, 184, 0.35);
  margin-top: 30px; padding-top: 18px; text-align: center;
  color: #9ca3af; font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 1024px) {
  .nav-links { display: none !important; }
  .mobile-menu-btn { display: block; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .mobile-menu-btn { display: block; }
  .page-header { padding: 60px 18px 70px; }
  .page-header h1 { font-size: 2.1rem; }
  .page-header p { font-size: 1rem; }
  .calculator-card { padding: 24px 18px; }
  .input-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
  .result-value { font-size: 2.5rem; }
  .download-buttons { flex-direction: column; }
  .blog-content { padding: 26px 18px; }
  .blog-content h2 { font-size: 1.7rem; }
  .blog-content h3 { font-size: 1.15rem; }
}