/* ══════════════════════════════════════════════════════════════════════
   RupeeCase Pillar Page Styles
   Shared by: systematic-investing, indian-markets, portfolio-construction,
              behaviour-and-business, macro-tax-regulation
══════════════════════════════════════════════════════════════════════ */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter',sans-serif;line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased;transition:background 0.3s,color 0.3s}

html.dark body{background:#060912;color:#f1f5f9;background-image:radial-gradient(circle at 15% 0%,rgba(96,165,250,0.05) 0%,transparent 45%),radial-gradient(circle at 85% 100%,rgba(96,165,250,0.04) 0%,transparent 45%);background-attachment:fixed}
html.light body{background:#fafbfc;color:#0D1F3C;background-image:radial-gradient(circle at 15% 0%,rgba(13,31,60,0.03) 0%,transparent 45%);background-attachment:fixed}
html.dark .muted{color:#94a3b8}
html.light .muted{color:#64748b}

.nav{position:sticky;top:0;z-index:100;backdrop-filter:blur(16px);padding:0 24px;height:56px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid}
html.dark .nav{background:rgba(6,9,18,0.85);border-color:rgba(255,255,255,0.06)}
html.light .nav{background:rgba(250,251,252,0.85);border-color:rgba(0,0,0,0.06)}
.nav-brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:inherit}
.nav-logo{width:28px;height:28px;background:#0D1F3C;border-radius:6px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:13px;font-weight:700;font-family:'JetBrains Mono',monospace}
html.dark .nav-logo{background:#f1f5f9;color:#0D1F3C}
.nav-name{font-weight:600;font-size:15px}
.nav-actions{display:flex;align-items:center;gap:14px}
.nav-actions a{text-decoration:none;font-size:13px;font-weight:500;color:inherit;opacity:0.8}
.nav-actions a:hover{opacity:1}
.theme-toggle{background:none;border:1px solid rgba(128,128,128,0.22);border-radius:6px;padding:6px 10px;cursor:pointer;font-size:13px;color:inherit}

.breadcrumb{max-width:880px;margin:0 auto;padding:24px 24px 0;font-size:12px;font-family:'JetBrains Mono',monospace;opacity:0.6;letter-spacing:0.04em}
.breadcrumb a{color:inherit;text-decoration:none}
.breadcrumb a:hover{opacity:1}
.breadcrumb .sep{margin:0 8px}

.container{max-width:880px;margin:0 auto;padding:24px 24px 80px}

.hero{padding-top:16px;margin-bottom:44px}
.hero-label{display:inline-block;padding:6px 12px;border-radius:99px;font-size:10px;font-family:'JetBrains Mono',monospace;letter-spacing:0.12em;text-transform:uppercase;margin-bottom:22px}
html.dark .hero-label{background:rgba(96,165,250,0.10);color:#93c5fd;border:1px solid rgba(96,165,250,0.22)}
html.light .hero-label{background:rgba(13,31,60,0.06);color:#0D1F3C;border:1px solid rgba(13,31,60,0.12)}
.hero h1{font-size:46px;font-weight:700;letter-spacing:-0.03em;line-height:1.08;margin-bottom:20px}
.hero .lead{font-size:18px;max-width:760px;line-height:1.65}
html.dark .hero .lead{color:#cbd5e1}
html.light .hero .lead{color:#334155}

.section{padding:40px;border-radius:20px;margin-bottom:22px;border:1px solid rgba(128,128,128,0.12)}
html.dark .section{background:rgba(255,255,255,0.025);box-shadow:0 1px 0 rgba(255,255,255,0.03) inset,0 24px 48px -20px rgba(0,0,0,0.4);backdrop-filter:blur(12px)}
html.light .section{background:#fff;box-shadow:0 1px 3px rgba(0,0,0,0.02),0 20px 40px -24px rgba(13,31,60,0.12)}
.section h2{font-size:28px;font-weight:700;letter-spacing:-0.02em;line-height:1.2;margin-bottom:18px}
.section h3{font-size:18px;font-weight:600;margin:28px 0 12px;letter-spacing:-0.01em}
.section p{margin-bottom:16px;line-height:1.75;font-size:15.5px}
html.dark .section p{color:#cbd5e1}
html.light .section p{color:#334155}
.section a{color:inherit;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:2px;opacity:0.92;font-weight:500}
.section a:hover{opacity:1}

.module-list{display:grid;gap:10px;margin:20px 0 8px}
.module-card{display:block;padding:18px 22px;border-radius:14px;border:1px solid rgba(128,128,128,0.14);text-decoration:none;color:inherit;transition:transform 0.15s,border-color 0.15s,box-shadow 0.15s}
html.dark .module-card{background:rgba(255,255,255,0.02)}
html.light .module-card{background:#fafbfc}
.module-card:hover{transform:translateX(3px)}
html.dark .module-card:hover{border-color:rgba(96,165,250,0.35);box-shadow:0 8px 20px -8px rgba(96,165,250,0.2)}
html.light .module-card:hover{border-color:#0D1F3C;box-shadow:0 8px 20px -8px rgba(13,31,60,0.2)}
.module-kicker{font-size:10px;font-family:'JetBrains Mono',monospace;letter-spacing:0.12em;text-transform:uppercase;opacity:0.55;margin-bottom:6px;font-weight:600}
.module-title{font-weight:600;font-size:15.5px;letter-spacing:-0.005em;margin-bottom:4px}
.module-sub{font-size:13.5px;line-height:1.55}
html.dark .module-sub{color:#94a3b8}
html.light .module-sub{color:#64748b}

.cta{margin:36px 0 28px;padding:28px;border-radius:18px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
html.dark .cta{background:linear-gradient(135deg,rgba(96,165,250,0.08) 0%,rgba(96,165,250,0.02) 100%);border:1px solid rgba(96,165,250,0.18)}
html.light .cta{background:linear-gradient(135deg,rgba(13,31,60,0.04) 0%,rgba(13,31,60,0.01) 100%);border:1px solid rgba(13,31,60,0.10)}
.cta-text{flex:1;min-width:240px}
.cta-label{font-size:11px;font-family:'JetBrains Mono',monospace;letter-spacing:0.12em;text-transform:uppercase;opacity:0.6;margin-bottom:6px}
.cta-title{font-size:17px;font-weight:600}
.cta-btn{padding:12px 22px;border-radius:12px;font-size:14px;font-weight:600;text-decoration:none;transition:transform 0.15s,box-shadow 0.15s}
html.dark .cta-btn{background:#f1f5f9;color:#0D1F3C}
html.light .cta-btn{background:#0D1F3C;color:#fff}
.cta-btn:hover{transform:translateY(-2px)}

.related{margin-top:36px}
.related h3{font-size:11px;font-family:'JetBrains Mono',monospace;letter-spacing:0.14em;text-transform:uppercase;opacity:0.6;margin-bottom:14px;font-weight:600}
.related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:10px}
.related-card{padding:16px 18px;border-radius:12px;border:1px solid rgba(128,128,128,0.14);text-decoration:none;color:inherit;display:block;transition:transform 0.15s}
html.dark .related-card{background:rgba(255,255,255,0.025)}
html.light .related-card{background:#fff}
.related-card:hover{transform:translateY(-2px)}
.related-card strong{display:block;font-size:14.5px;font-weight:600;margin-bottom:2px;letter-spacing:-0.005em}
.related-card span{font-size:12px;opacity:0.65}

@media(max-width:680px){
  .hero h1{font-size:34px}
  .hero .lead{font-size:16px}
  .section{padding:28px 24px}
  .section h2{font-size:22px}
  .cta{flex-direction:column;align-items:flex-start}
}