@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700&family=DM+Mono:wght@400;500&display=swap');

:root {
  --primary: #1A56DB;
  --primary-dark: #1344B0;
  --primary-light: #EEF2FF;
  --primary-mid: #2563EB;
  --gold: #C9A84C;
  --gold-light: #FBF5E6;
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #94A3B8;
  --bg: #FFFFFF;
  --surface: #F8FAFC;
  --surface-2: #F1F5F9;
  --border: #E2E8F0;
  --border-focus: #1A56DB;
  --success: #059669;
  --success-bg: #ECFDF5;
  --success-border: #6EE7B7;
  --radius: 14px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(26,86,219,0.08);
  --shadow-lg: 0 12px 32px rgba(26,86,219,0.12);
  --font: 'Plus Jakarta Sans', sans-serif;
  --font-mono: 'DM Mono', monospace;
  --nav-h: 64px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--bg); color: var(--text-primary); line-height: 1.6; font-size: 16px; -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* NAV */
.nav { position: sticky; top: 0; z-index: 100; background: #1E3A5F; backdrop-filter: blur(8px); border-bottom: none; height: var(--nav-h); }
.nav-inner { max-width: 1200px; margin: 0 auto; padding: 0 24px; height: 100%; display: flex; align-items: center; justify-content: space-between; }
.nav-logo { display: flex; align-items: center; gap: 8px; font-size: 20px; font-weight: 700; color: #fff; text-decoration: none; }
.nav-logo svg { width: 34px; height: 34px; flex-shrink: 0; }
.logo-name { color: #fff; white-space: nowrap; }
.logo-name span { color: var(--gold); }
.nav-links { display: flex; align-items: center; gap: 2px; }
.nav-links a { font-size: 12px; font-weight: 700; color: rgba(255,255,255,0.85); padding: 5px 8px; border-radius: var(--radius-sm); transition: all .15s; }
.nav-links a:hover { color: #fff; background: rgba(255,255,255,0.15); text-decoration: none; }
.nav-links a.active { color: #fff; background: rgba(255,255,255,0.2); }
.nav-cta { background: var(--gold) !important; color: #fff !important; border-radius: var(--radius-sm); padding: 6px 14px !important; font-weight: 700; }
.nav-cta:hover { background: #b8943e !important; color: #fff !important; }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle svg { width: 22px; height: 22px; stroke: #fff; }
.nav-mobile { display: none; position: absolute; top: var(--nav-h); left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--border); padding: 12px 24px; flex-direction: column; gap: 4px; box-shadow: var(--shadow-md); z-index: 99; }
.nav-mobile.open { display: flex; }
.nav-mobile a { font-size: 15px; font-weight: 500; color: var(--text-secondary); padding: 10px 12px; border-radius: var(--radius-sm); }
.nav-mobile a:hover { color: var(--primary); background: var(--primary-light); text-decoration: none; }

/* BREADCRUMB */
.breadcrumb { max-width: 1200px; margin: 0 auto; padding: 12px 24px 0; font-size: 13px; color: var(--text-muted); display: flex; align-items: center; gap: 6px; }
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--primary); text-decoration: none; }
.breadcrumb .sep { color: var(--border); }

/* HERO */
.hero { background: linear-gradient(135deg, #EEF2FF 0%, #FFFFFF 60%); border-bottom: 1px solid var(--border); padding: 64px 24px 80px; }
.hero-inner { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.hero-badge { display: inline-flex; align-items: center; gap: 6px; background: var(--gold-light); color: var(--gold); font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: 100px; border: 1px solid rgba(201,168,76,0.3); margin-bottom: 20px; }
.hero-badge::before { content: ''; width: 6px; height: 6px; background: var(--gold); border-radius: 50%; }
.hero h1 { font-size: clamp(32px, 4vw, 48px); font-weight: 700; line-height: 1.2; color: var(--text-primary); margin-bottom: 16px; }
.hero h1 em { font-style: normal; color: var(--primary); }
.hero p { font-size: 17px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 28px; max-width: 480px; }
.hero-trust { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.hero-trust-item { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text-secondary); font-weight: 500; }
.hero-trust-item svg { width: 16px; height: 16px; stroke: var(--primary); }

/* PAGE HEADER */
.page-header { background: linear-gradient(135deg, #EEF2FF 0%, #FFFFFF 70%); border-bottom: 1px solid var(--border); padding: 40px 24px 48px; }
.page-header-inner { max-width: 1200px; margin: 0 auto; }
.page-header h1 { font-size: clamp(26px, 3vw, 38px); font-weight: 700; color: var(--text-primary); margin-bottom: 10px; }
.page-header p { font-size: 16px; color: var(--text-secondary); max-width: 600px; }

/* MAIN LAYOUT */
.main { max-width: 1200px; margin: 0 auto; padding: 48px 24px; display: grid; grid-template-columns: 1fr 340px; gap: 40px; align-items: start; }
.main-col { min-width: 0; }
.sidebar { display: flex; flex-direction: column; gap: 24px; }

/* CALCULATOR CARD */
.calc-card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); overflow: hidden; }
.calc-card-header { background: var(--primary); padding: 24px 28px; }
.calc-card-header h2 { font-size: 20px; font-weight: 700; color: #fff; margin-bottom: 4px; }
.calc-card-header p { font-size: 14px; color: rgba(255,255,255,0.8); }
.calc-body { padding: 28px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 24px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group.full { grid-column: 1 / -1; }
.form-group label { font-size: 13px; font-weight: 600; color: var(--text-secondary); text-transform: uppercase; letter-spacing: .04em; }
.input-wrap { position: relative; }
.input-prefix, .input-suffix { position: absolute; top: 50%; transform: translateY(-50%); font-size: 15px; font-weight: 600; color: var(--text-muted); pointer-events: none; }
.input-prefix { left: 14px; }
.input-suffix { right: 14px; }
.input-wrap input, .input-wrap select { width: 100%; height: 48px; border: 1.5px solid var(--border); border-radius: var(--radius-sm); font-size: 16px; font-family: var(--font-mono); font-weight: 500; color: var(--text-primary); background: var(--bg); transition: border-color .15s, box-shadow .15s; outline: none; }
.input-wrap input:focus, .input-wrap select:focus { border-color: var(--border-focus); box-shadow: 0 0 0 3px rgba(35,72,176,0.12); }
.input-wrap.has-prefix input { padding: 0 14px 0 32px; }
.input-wrap.has-suffix input { padding: 0 36px 0 14px; }
.input-wrap.plain input, .input-wrap select { padding: 0 14px; }
.input-wrap select { padding: 0 14px; cursor: pointer; }
.calc-btn { width: 100%; height: 52px; background: var(--primary); color: #fff; border: none; border-radius: var(--radius-sm); font-family: var(--font); font-size: 16px; font-weight: 600; cursor: pointer; transition: background .15s, transform .1s; }
.calc-btn:hover { background: var(--primary-dark); }
.calc-btn:active { transform: scale(0.99); }

/* RESULTS */
.results { display: none; margin-top: 24px; border-top: 1px solid var(--border); padding-top: 24px; animation: fadeUp .3s ease; }
.results.visible { display: block; }
@keyframes fadeUp { from { opacity:0; transform:translateY(12px); } to { opacity:1; transform:translateY(0); } }
.results-primary { background: var(--gold-light); border: 1px solid rgba(201,168,76,0.3); border-radius: var(--radius); padding: 24px; margin-bottom: 20px; text-align: center; }
.results-label { font-size: 13px; font-weight: 600; color: var(--gold); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 8px; }
.results-value { font-family: var(--font-mono); font-size: clamp(32px, 5vw, 48px); font-weight: 500; color: var(--text-primary); letter-spacing: -1px; }
.results-sub { font-size: 14px; color: var(--text-secondary); margin-top: 6px; }
.results-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 16px; }
.result-stat { background: var(--surface); border-radius: var(--radius-sm); padding: 14px 16px; }
.result-stat-label { font-size: 12px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: .05em; margin-bottom: 4px; }
.result-stat-val { font-family: var(--font-mono); font-size: 20px; font-weight: 500; color: var(--text-primary); }

/* DISCLAIMER BOX */
.disclaimer-box { background: #FFF8E1; border: 1px solid rgba(201,168,76,0.4); border-radius: var(--radius-sm); padding: 14px 16px; margin-top: 20px; font-size: 13px; color: var(--text-secondary); line-height: 1.7; }
.disclaimer-box strong { color: var(--text-primary); }

/* INTERPRETATION */
.interpretation { margin-top: 40px; }
.interpretation h2 { font-size: 22px; font-weight: 700; color: var(--text-primary); margin-bottom: 16px; }
.interpretation p { font-size: 15px; color: var(--text-secondary); line-height: 1.8; margin-bottom: 14px; }
.interpretation ul { list-style: none; display: flex; flex-direction: column; gap: 10px; margin: 16px 0; }
.interpretation li { display: flex; align-items: flex-start; gap: 10px; font-size: 15px; color: var(--text-secondary); line-height: 1.6; }
.interpretation li::before { content: ''; width: 6px; height: 6px; background: var(--primary); border-radius: 50%; flex-shrink: 0; margin-top: 8px; }

/* FAQ */
.faq { margin-top: 48px; }
.faq h2 { font-size: 24px; font-weight: 700; color: var(--text-primary); margin-bottom: 24px; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius-sm); margin-bottom: 10px; overflow: hidden; }
.faq-q { width: 100%; background: none; border: none; padding: 18px 20px; text-align: left; font-family: var(--font); font-size: 15px; font-weight: 600; color: var(--text-primary); cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.faq-q:hover { background: var(--surface); }
.faq-icon { width: 20px; height: 20px; flex-shrink: 0; stroke: var(--text-muted); transition: transform .2s; }
.faq-q.open .faq-icon { transform: rotate(45deg); }
.faq-a { display: none; padding: 0 20px 18px; font-size: 15px; color: var(--text-secondary); line-height: 1.8; }
.faq-a.open { display: block; }

/* TOOLS GRID */
.tools-section { padding: 64px 24px; }
.tools-inner { max-width: 1200px; margin: 0 auto; }
.section-label { font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--primary); margin-bottom: 12px; }
.section-title { font-size: clamp(24px, 3vw, 36px); font-weight: 700; color: var(--text-primary); margin-bottom: 8px; }
.section-sub { font-size: 16px; color: var(--text-secondary); margin-bottom: 40px; }
.tools-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 20px; }
.tool-card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; transition: all .2s; display: block; text-decoration: none; }
.tool-card:hover { border-color: var(--primary); box-shadow: var(--shadow-lg); transform: translateY(-2px); text-decoration: none; }
.tool-card-icon { width: 44px; height: 44px; background: var(--primary-light); border-radius: 10px; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.tool-card-icon svg { width: 22px; height: 22px; stroke: var(--primary); }
.tool-card h3 { font-size: 16px; font-weight: 700; color: var(--text-primary); margin-bottom: 6px; }
.tool-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }
.tool-card-arrow { display: flex; align-items: center; gap: 4px; font-size: 13px; font-weight: 600; color: var(--primary); margin-top: 14px; }
.tool-card-arrow svg { width: 14px; height: 14px; stroke: var(--primary); }

/* SIDEBAR */
.sidebar-card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.sidebar-card h3 { font-size: 15px; font-weight: 700; color: var(--text-primary); margin-bottom: 14px; }
.related-link { display: flex; align-items: center; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--border); text-decoration: none; }
.related-link:last-child { border-bottom: none; }
.related-link:hover { text-decoration: none; }
.related-link-icon { width: 36px; height: 36px; background: var(--primary-light); border-radius: 8px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.related-link-icon svg { width: 18px; height: 18px; stroke: var(--primary); }
.related-link-text { font-size: 14px; font-weight: 600; color: var(--text-primary); }
.related-link-sub { font-size: 12px; color: var(--text-muted); }

/* AD UNITS */
.ad-unit { width: 100%; overflow: hidden; }
.ad-unit-label { font-size: 10px; color: var(--text-muted); text-align: center; margin-bottom: 2px; letter-spacing: .08em; text-transform: uppercase; }
.ad-unit-inner { background: var(--surface); border: 1px dashed var(--border); border-radius: var(--radius-sm); min-height: 90px; display: flex; align-items: center; justify-content: center; }

/* TRUST BAR */
.trust-bar { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 20px 24px; }
.trust-bar-inner { max-width: 1200px; margin: 0 auto; display: flex; justify-content: center; gap: 40px; flex-wrap: wrap; }
.trust-item { display: flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 500; color: var(--text-secondary); }
.trust-item svg { width: 18px; height: 18px; stroke: var(--primary); }

/* BAR CHART */
.bar-chart { display: flex; flex-direction: column; gap: 10px; }
.bar-row { display: flex; align-items: center; gap: 12px; }
.bar-label { font-size: 12px; color: var(--text-muted); width: 120px; text-align: right; flex-shrink: 0; }
.bar-track { flex: 1; background: var(--surface-2); border-radius: 100px; height: 10px; overflow: hidden; }
.bar-fill { height: 100%; border-radius: 100px; background: var(--primary); transition: width .6s ease; }
.bar-fill.gold { background: var(--gold); }
.bar-val { font-size: 12px; font-family: var(--font-mono); font-weight: 500; color: var(--text-primary); min-width: 80px; }

/* POLICY PAGES */
.policy-body { max-width: 800px; margin: 0 auto; padding: 48px 24px 80px; }
.policy-body h1 { font-size: 32px; font-weight: 700; color: var(--text-primary); margin-bottom: 8px; }
.policy-body .last-updated { font-size: 14px; color: var(--text-muted); margin-bottom: 40px; }
.policy-body h2 { font-size: 20px; font-weight: 700; color: var(--text-primary); margin: 36px 0 12px; }
.policy-body p { font-size: 15px; color: var(--text-secondary); line-height: 1.8; margin-bottom: 14px; }
.policy-body ul { margin: 12px 0 16px 20px; }
.policy-body li { font-size: 15px; color: var(--text-secondary); line-height: 1.8; margin-bottom: 6px; }
.policy-body a { color: var(--primary); }

/* FOOTER */
footer { background: var(--text-primary); color: rgba(255,255,255,0.7); padding: 48px 24px 32px; margin-top: 80px; }
.footer-inner { max-width: 1200px; margin: 0 auto; }
.footer-top { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand { font-size: 22px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.footer-brand span { color: var(--gold); }
.footer-desc { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,0.5); }
.footer-col h4 { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: rgba(255,255,255,0.4); margin-bottom: 14px; }
.footer-col a { display: block; font-size: 14px; color: rgba(255,255,255,0.65); margin-bottom: 10px; text-decoration: none; }
.footer-col a:hover { color: #fff; text-decoration: none; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px; display: flex; flex-direction: column; align-items: center; text-align: center; gap: 10px; }
.footer-bottom p { font-size: 13px; color: rgba(255,255,255,0.4); }
.footer-bottom .disclaimer { font-size: 11px; color: rgba(255,255,255,0.25); max-width: 700px; line-height: 1.7; }

/* RESPONSIVE */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .main { grid-template-columns: 1fr; }
  .sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
}
@media (max-width: 600px) {
  .form-grid { grid-template-columns: 1fr; }
  .results-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .sidebar { grid-template-columns: 1fr; }
  .trust-bar-inner { gap: 20px; }
  .hero { padding: 40px 24px 56px; }
}