:root{--bg-primary:#f8fafc;--bg-secondary:#fff;--bg-tertiary:#f1f5f9;--bg-elevated:#fff;--bg-card:#fffffff2;--bg-card-hover:#fff;--border-subtle:#e2e8f0;--border-strong:#cbd5e1;--border-focus:#3b82f6;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#64748b;--text-inverse:#fff;--brand-primary:#2563eb;--brand-primary-hover:#1d4ed8;--brand-primary-light:#eff6ff;--brand-secondary:#06b6d4;--brand-accent:#8b5cf6;--brand-gradient:linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);--brand-gradient-hover:linear-gradient(135deg, #1d4ed8 0%, #0891b2 100%);--accent-gradient:linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);--success:#10b981;--success-light:#ecfdf5;--warning:#f59e0b;--warning-light:#fffbeb;--danger:#ef4444;--danger-light:#fef2f2;--info:#0284c7;--chart-1:#4f46e5;--chart-2:#06b6d4;--chart-3:#f59e0b;--chart-4:#10b981;--chart-5:#ec4899;--ad-bg:#f8fafc;--ad-border:#e2e8f0;--ad-label:#94a3b8;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #00000012, 0 2px 4px -2px #0000000d;--shadow-lg:0 10px 15px -3px #00000014, 0 4px 6px -4px #0000000d;--shadow-xl:0 20px 25px -5px #00000014, 0 8px 10px -6px #0000000d;--shadow-glow:0 0 25px #2563eb2e;--radius-sm:8px;--radius-md:12px;--radius-lg:18px;--radius-xl:24px;--radius-full:9999px;--font-sans:"Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;--font-heading:"Outfit", "Inter", sans-serif;--transition-fast:.15s cubic-bezier(.4, 0, .2, 1);--transition-normal:.25s cubic-bezier(.4, 0, .2, 1);--transition-bounce:.4s cubic-bezier(.34, 1.56, .64, 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var(--transition-fast);text-decoration:none}a:hover{color:var(--brand-primary-hover)}.app-container{flex-direction:column;min-height:100vh;display:flex}.main-content{flex:1;width:100%;max-width:1240px;margin:0 auto;padding:.75rem 1rem 2rem}@media (width>=768px){.main-content{padding:1rem 1.5rem 2.5rem}}.hero-section{text-align:center;padding:.85rem 1rem .75rem;position:relative}.hero-badge{border-radius:var(--radius-full);background:var(--brand-primary-light);color:var(--brand-primary);border:1px solid #3b82f633;align-items:center;gap:.4rem;margin-bottom:.5rem;padding:.25rem .65rem;font-size:.8rem;font-weight:600;display:inline-flex}.hero-title{letter-spacing:-.02em;margin-bottom:.4rem;font-size:clamp(1.75rem,3.5vw,2.5rem)}.gradient-text{background:var(--brand-gradient);-webkit-text-fill-color:transparent;-webkit-background-clip:text}.hero-subtitle{max-width:680px;color:var(--text-muted);margin:0 auto .75rem;font-size:1rem;line-height:1.5}.tool-layout{grid-template-columns:1fr;gap:1.25rem;width:100%;min-width:0;max-width:100%;margin-top:.75rem;display:grid}.tool-layout>div{min-width:0;max-width:100%}@media (width>=1024px){.tool-layout{grid-template-columns:1fr 320px;align-items:start}}.card{background:var(--bg-card);-webkit-backdrop-filter:blur(12px);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);width:100%;min-width:0;max-width:100%;transition:transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);padding:1.75rem}.card:hover{border-color:var(--border-strong)}.tabs-nav{border:1px solid var(--border-subtle);border-top:2.5px solid var(--brand-primary);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);background:#fff;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));margin-bottom:1.5rem;display:grid;overflow:hidden}.tab-btn{border:1px solid var(--border-subtle);color:var(--text-secondary);cursor:pointer;text-align:center;transition:background-color var(--transition-fast), color var(--transition-fast);background:#fff;border-radius:0;justify-content:center;align-items:center;gap:.4rem;margin:-1px 0 0 -1px;padding:.8rem .9rem;font-size:.875rem;font-weight:600;line-height:1.35;display:flex}.tab-btn:hover{background:var(--brand-primary-light);color:var(--brand-primary)}.tab-btn.active{background:var(--brand-primary);border-color:var(--brand-primary);font-weight:700;box-shadow:inset 0 1px 3px #00000026;color:#fff!important}.form-group{margin-bottom:1.25rem}.form-label{color:var(--text-primary);margin-bottom:.5rem;font-size:.875rem;font-weight:600;display:block}.input-row{grid-template-columns:1fr;gap:1rem;display:grid}@media (width>=640px){.input-row{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}}.input-field,.select-field{border:1.5px solid 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