/* Classic Excel VBA shared theme */
:root{--bg:#07111f;--bg2:#0d1829;--panel:#10203a;--panel2:#152a48;--card:#112542;--border:#284468;--soft:#9db0c9;--text:#edf5ff;--primary:#38a3ff;--primary2:#75c4ff;--accent:#6ee7ff;--green:#5de2a8;--excel:#1d6f42;--excel2:#2ca35e;--shadow:0 16px 40px rgba(0,0,0,.34);--max:1200px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,system-ui,sans-serif;line-height:1.7;color:var(--text);background:radial-gradient(circle at top left, rgba(56,163,255,.12), transparent 32%),radial-gradient(circle at 78% 12%, rgba(110,231,255,.08), transparent 28%),linear-gradient(180deg, #08111f 0%, #0a1424 100%)}a{text-decoration:none;color:inherit}img{max-width:100%;display:block}.container{width:min(var(--max), calc(100% - 32px)); margin:auto}.site-header{position:sticky;top:0;z-index:1000;backdrop-filter:blur(14px);background:rgba(8,17,31,.84);border-bottom:1px solid rgba(255,255,255,.06)}.nav{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:12px;font-weight:800}.brand-logo{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg, var(--excel), var(--excel2));color:#fff;font-weight:800;box-shadow:0 10px 24px rgba(29,111,66,.35)}.brand-text{font-family:Rajdhani,sans-serif;font-size:1.35rem;letter-spacing:.02em}.brand-text span{color:#86f0b7}.nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap}.nav-links a{color:#d4e4fb;font-size:.95rem}.nav-links a:hover{color:#fff}.nav-cta{padding:11px 18px;border-radius:999px;background:linear-gradient(135deg, var(--primary), #3289ff);color:#fff;font-weight:700;box-shadow:0 12px 26px rgba(56,163,255,.24)}.page-shell{width:min(var(--max), calc(100% - 32px));margin:34px auto 56px;display:grid;grid-template-columns:300px minmax(0,1fr);gap:26px}.sidebar{position:sticky;top:96px;align-self:start;max-height:calc(100vh - 120px);overflow:auto;background:linear-gradient(180deg, rgba(16,32,58,.94), rgba(12,24,42,.98));border:1px solid rgba(255,255,255,.07);border-radius:22px;box-shadow:var(--shadow);padding:22px 18px}.sidebar-brand{padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.08);margin-bottom:16px}.sidebar-brand img{width:100%;max-width:180px;margin:0 auto}.sidebar-title{font-size:1.1rem;font-weight:800;margin:0 0 12px;color:#fff}.side-links{display:grid;gap:6px}.side-link{display:block;padding:10px 12px;border-radius:12px;color:#dceaff;font-size:.95rem;transition:.2s ease}.side-link:hover,.side-link.active{background:rgba(255,255,255,.08);color:#fff;transform:translateX(2px)}.side-heading{margin:18px 0 10px;font-size:.78rem;text-transform:uppercase;letter-spacing:.08em;color:#96efbe;font-weight:800}.sidebar-book{margin-top:16px;padding:14px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.06);border-radius:16px}.sidebar-book img{width:100%;max-width:160px;margin:0 auto 12px;border-radius:12px;box-shadow:0 10px 20px rgba(0,0,0,.25)}.sidebar-book h3{margin:0 0 8px;font-size:1rem}.sidebar-book p{margin:0 0 12px;color:var(--soft);font-size:.9rem}.sidebar-book a{display:inline-flex;align-items:center;justify-content:center;padding:10px 14px;border-radius:12px;background:linear-gradient(135deg, var(--primary), #3289ff);color:#fff;font-weight:700;font-size:.9rem}.content{min-width:0}.hero{background:linear-gradient(135deg, rgba(56,163,255,.12), rgba(110,231,255,.08)),rgba(255,255,255,.03);border:1px solid rgba(110,231,255,.15);border-radius:26px;padding:34px;box-shadow:var(--shadow);margin-bottom:24px}.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border:1px solid rgba(134,240,183,.22);background:rgba(134,240,183,.08);color:#9cf3c1;border-radius:999px;font-size:.78rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase}.hero h1{margin:16px 0 10px;font-size:clamp(2rem,4vw,3.7rem);line-height:1.05;letter-spacing:-.03em}.hero h1 .highlight{color:#8dd7ff}.hero p{color:var(--soft);margin:0;max-width:820px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 20px;border-radius:14px;font-weight:700}.btn-primary{background:linear-gradient(135deg, var(--primary), #3289ff);color:#fff}.btn-secondary{border:1px solid var(--border);background:rgba(255,255,255,.03);color:#fff}.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.pill{padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.07);color:#d8e6fb;font-size:.87rem}.card{background:linear-gradient(180deg, rgba(17,27,45,.9), rgba(12,20,34,.96));border:1px solid rgba(255,255,255,.07);border-radius:22px;padding:28px;box-shadow:var(--shadow);margin-bottom:22px}.card h2{margin:0 0 12px;font-size:1.7rem;line-height:1.15}.card h3{margin:24px 0 10px;font-size:1.22rem;color:#fff}.card p,.card li{color:#dfeafd}.card ul,.card ol{padding-left:22px}.card code{font-family:'JetBrains Mono',monospace;background:rgba(255,255,255,.06);padding:2px 6px;border-radius:8px}pre{background:#0c1626;color:#eaf3ff;border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:18px;overflow:auto;margin:18px 0;font-family:'JetBrains Mono',monospace;font-size:.94rem;line-height:1.7;white-space:pre-wrap}figure{margin:18px 0;background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.06);border-radius:18px;padding:16px}figure img{border-radius:12px;width:auto;max-width:100%;margin:0 auto}figure figcaption{color:var(--soft);font-size:.92rem;margin-top:10px;text-align:center}.nav-prevnext{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;margin:18px 0 0}.footer{margin-top:28px;padding:24px 0 10px;color:var(--soft);text-align:center;border-top:1px solid rgba(255,255,255,.08)}.footer a{color:#cfe8ff}.mobile-toggle{display:none;width:100%;margin-bottom:14px}@media (max-width:1024px){.page-shell{grid-template-columns:1fr}.sidebar{display:none;position:static;max-height:none}.sidebar.open{display:block}.mobile-toggle{display:flex;align-items:center;justify-content:center;padding:13px 16px;border-radius:14px;background:linear-gradient(135deg, var(--primary), #3289ff);color:#fff;font-weight:700;border:none}}@media (max-width:768px){.nav{padding:14px 0;flex-direction:column;align-items:flex-start}.nav-links{gap:12px}.hero,.card{padding:22px}}