*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{font-family:var(--font-inter), system-ui, -apple-system, sans-serif;scrollbar-gutter:stable;margin:0;overflow-y:scroll}.navbar{z-index:100;background:var(--surface,#fff);border-bottom:1px solid var(--border,#e2e8f0);align-items:center;height:68px;min-height:68px;display:flex;position:sticky;top:0}.stat-strip{contain:layout;height:78px;min-height:78px;display:flex;overflow:hidden}.stat-strip-item{box-sizing:border-box;flex-direction:column;flex:1;justify-content:center;align-items:center;height:78px;min-height:78px;display:flex}.hero{color:#fff;background:linear-gradient(135deg,#0f172a 0%,#1e293b 100%);justify-content:center;align-items:center;min-height:380px;padding:clamp(40px,6vw,80px) clamp(16px,4vw,24px);display:flex}@media (max-width:767px){.hero{min-height:300px}}.hero-inner{width:100%;max-width:1280px;margin:0 auto}.hero-layout{align-items:center;gap:48px;display:flex}@media (max-width:767px){.hero-layout{flex-direction:column}}.hero-content{flex:1}.hero-title{font-family:var(--font-jakarta,var(--font-inter,system-ui));margin:0 0 16px;font-size:clamp(28px,5vw,52px);font-weight:800;line-height:1.1}.hero-sub{color:#ffffffd1;max-width:540px;margin-bottom:28px;font-size:16px;line-height:1.7}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.calc-card-min-h{min-height:360px}@keyframes shimmer{0%{background-position:-600px 0}to{background-position:600px 0}}.skeleton{background:linear-gradient(90deg, var(--border,#e2e8f0) 25%, var(--surf2,#f8fafc) 50%, var(--border,#e2e8f0) 75%);background-size:1200px 100%;border-radius:6px;animation:1.5s infinite shimmer}.hero-calc-placeholder{background:#0f172af0;border:1.5px solid #ffffff1f;border-radius:20px;flex-direction:column;gap:10px;width:300px;padding:16px;display:flex;box-shadow:0 20px 60px #0006}.hero-calc-display{text-align:right;background:#ffffff0f;border-radius:12px;justify-content:flex-end;align-items:flex-end;min-height:56px;padding:12px 16px;display:flex}.hero-calc-display-hint{color:#ffffffe6;font-variant-numeric:tabular-nums;font-size:28px;font-weight:300}.hero-calc-btns{grid-template-columns:repeat(4,1fr);gap:6px;display:grid}.hero-calc-btn{color:#ffffffe6;cursor:default;-webkit-user-select:none;user-select:none;background:#ffffff14;border-radius:10px;justify-content:center;align-items:center;height:48px;font-size:16px;font-weight:600;transition:background .12s;display:flex}.hero-calc-btn--op{color:#60a5fa;background:#60a5fa1f}.hero-calc-btn--eq{color:#fff;background:linear-gradient(135deg,#3b82f6,#2563eb);box-shadow:0 4px 12px #2563eb66}.hero-calc-btn--zero{grid-column:span 2}