/* Shared light design system for anirbansarkar.net */
:root{color-scheme:light;--bg:#ffffff;--surface:#ffffff;--surface-2:#f6f8fb;--surface-hover:#eef3f8;--border:#dfe5ec;--text:#172033;--text-muted:#5f6b7a;--accent:#3659a7;--accent-2:#087f8c;--accent-soft:#e9f3f5;--shadow:0 10px 30px rgba(25,39,65,.08);--radius-lg:28px;--radius-md:18px;--radius-sm:10px;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);line-height:1.6}a{color:var(--accent)}::selection{background:var(--accent-soft);color:var(--text)}
.site-nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.nav-inner{max-width:1180px;margin:0 auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);font-weight:700;letter-spacing:-.01em}.brand-avatar{width:34px;height:34px;border-radius:50%;object-fit:cover;border:2px solid var(--border)}
.nav-toggle{display:none}.nav-burger{display:none;width:38px;height:38px;border-radius:var(--radius-sm);border:1px solid var(--border);align-items:center;justify-content:center;cursor:pointer}.nav-burger span,.nav-burger span::before,.nav-burger span::after{content:"";display:block;width:18px;height:2px;background:var(--text);position:relative}.nav-burger span::before{position:absolute;top:-6px}.nav-burger span::after{position:absolute;top:6px}
.nav-links{display:flex;align-items:center;gap:6px}.nav-links a{color:var(--text-muted);text-decoration:none;font-size:.92rem;font-weight:600;padding:8px 14px;border-radius:999px;transition:.15s}.nav-links a:hover,.nav-links a.active{color:var(--text);background:var(--surface-2)}.nav-cta{color:#fff!important;background:linear-gradient(135deg,var(--accent),var(--accent-2))!important}
.page{width:min(1180px,100%);margin:0 auto;padding:36px 24px 72px}.card{padding:26px;border-radius:var(--radius-lg);background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow)}.pill{display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:999px;border:1px solid var(--border);background:var(--surface-2);color:var(--text-muted);font-size:.9rem;white-space:nowrap}.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:999px;font-weight:600;text-decoration:none;font-size:.95rem;border:1px solid var(--border)}.btn-primary{color:#fff;border:none;background:linear-gradient(135deg,var(--accent),var(--accent-2))}.btn-ghost{color:var(--text);background:var(--surface-2)}.site-footer{border-top:1px solid var(--border);padding:24px;text-align:center;color:var(--text-muted);font-size:.85rem}
@media(max-width:720px){.nav-burger{display:flex}.nav-links{position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;background:#fff;border-bottom:1px solid var(--border);padding:10px 16px 16px;gap:4px;display:none}.nav-links a{text-align:center}.nav-toggle:checked~.nav-links{display:flex}}