:root{--primary-color: #2563eb;--primary-hover: #1d4ed8;--bg-color: #f8fafc;--text-dark: #0f172a;--text-muted: #64748b;--border-color: #e2e8f0;--card-bg: #ffffff;--accent-color: #0d9488}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,system-ui,-apple-system,sans-serif;background-color:var(--bg-color);color:var(--text-dark);line-height:1.6;-webkit-font-smoothing:antialiased}a{text-decoration:none;color:var(--primary-color);transition:color .2s ease}.navbar{display:flex;justify-content:space-between;align-items:center;padding:1rem 3rem;background:rgba(255,255,255,.95);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border-color);position:sticky;top:0;z-index:100;max-width:100%}.navbar-brand{font-size:1.35rem;font-weight:700;color:var(--text-dark);display:flex;align-items:center;gap:.5rem}.navbar-links{display:flex;gap:1.75rem;align-items:center}.navbar-links a{color:var(--text-muted);font-weight:500;font-size:.95rem}.navbar-links a:hover{color:var(--primary-color)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.65rem 1.25rem;border-radius:8px;font-weight:600;font-size:.95rem;cursor:pointer;border:none;transition:all .2s ease;box-shadow:0 1px 2px #0000000d}.btn-primary{background-color:var(--primary-color);color:#fff!important}.btn-primary:hover{background-color:var(--primary-hover);box-shadow:0 4px 12px #2563eb40;transform:translateY(-1px)}.container{max-width:1320px;margin:0 auto;padding:2.5rem 2rem}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(360px,1fr));gap:2rem}.card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:12px;padding:1.75rem;display:flex;flex-direction:column;box-shadow:0 4px 6px -1px #00000008,0 2px 4px -2px #00000008;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}.card:hover{transform:translateY(-4px);box-shadow:0 12px 24px -6px #00000014;border-color:#cbd5e1}.form-group{margin-bottom:1.25rem}.form-group label{display:block;margin-bottom:.5rem;font-weight:600;font-size:.9rem;color:#334155}.form-group input,.form-group textarea{width:100%;padding:.85rem 1rem;border:1px solid var(--border-color);border-radius:8px;font-family:inherit;font-size:.95rem;background-color:#fff;transition:border-color .2s ease,box-shadow .2s ease}.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #2563eb26}.auth-container{max-width:440px;margin:4rem auto;background:var(--card-bg);padding:2.5rem;border-radius:16px;border:1px solid var(--border-color);box-shadow:0 10px 25px -5px #0000000d}.table{width:100%;border-collapse:collapse;margin-top:1rem}.table th,.table td{text-align:left;padding:1rem 1.25rem;border-bottom:1px solid var(--border-color);font-size:.95rem}.table th{background:#f1f5f9;font-weight:600;color:#334155}.home-wrapper{animation:fadeIn .6s ease-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(15px)}to{opacity:1;transform:translateY(0)}}.hero-premium{background:linear-gradient(135deg,#0f172a 0%,#1e293b 100%);color:#fff;padding:6.5rem 2rem 7.5rem;text-align:center;position:relative;overflow:hidden}.hero-premium h1{font-size:3.5rem;font-weight:800;letter-spacing:-1.2px;margin-bottom:1.5rem;line-height:1.15}.hero-premium h1 span{background:linear-gradient(90deg,#38bdf8,#818cf8);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.hero-premium p{font-size:1.25rem;color:#94a3b8;max-width:750px;margin:0 auto 2.5rem;line-height:1.7}.feature-card{background:var(--card-bg);padding:2.5rem;border-radius:16px;border:1px solid var(--border-color);box-shadow:0 4px 6px -1px #00000008;transition:transform .3s ease,box-shadow .3s ease}.feature-card:hover{transform:translateY(-6px);box-shadow:0 20px 25px -5px #00000014;border-color:#cbd5e1}.stats-section{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;margin:4rem 0;padding:3rem 2rem;border-radius:16px;background:#ffffff;border:1px solid var(--border-color);box-shadow:0 4px 12px #00000005}.stat-item{text-align:center}.stat-item h4{font-size:3.25rem;color:var(--primary-color);font-weight:800;margin-bottom:.25rem}.stat-item p{color:var(--text-muted);font-weight:600;font-size:1rem}@media (max-width: 1024px){.grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}.hero-premium h1{font-size:2.75rem}}.calculator-container{background:#ffffff;border:1px solid var(--border-color);border-radius:16px;padding:3rem 2.5rem;box-shadow:0 10px 25px #00000005;margin:4rem auto;max-width:900px}.calc-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:3rem;margin-top:2rem}@media (max-width: 768px){.calc-grid{grid-template-columns:1fr;gap:2rem}}.calc-inputs{display:flex;flex-direction:column;gap:1.75rem}.calc-input-group label{display:flex;justify-content:space-between;font-weight:600;font-size:.95rem;color:var(--text-dark);margin-bottom:.5rem}.calc-val-badge{background-color:#eff6ff;color:var(--primary-color);padding:.2rem .6rem;border-radius:6px;font-size:.85rem;font-weight:700}.calc-slider{-webkit-appearance:none;width:100%;height:6px;border-radius:3px;background:#e2e8f0;outline:none}.calc-slider::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;background:var(--primary-color);cursor:pointer;transition:transform .1s ease}.calc-slider::-webkit-slider-thumb:hover{transform:scale(1.2)}.calc-results{background:#f8fafc;border-radius:12px;padding:2rem;border:1px solid var(--border-color);display:flex;flex-direction:column;justify-content:center;gap:1.5rem}.calc-result-item{border-bottom:1px solid #e2e8f0;padding-bottom:1rem}.calc-result-item:last-child{border-bottom:none;padding-bottom:0}.calc-result-label{font-size:.85rem;color:var(--text-muted);font-weight:600;margin-bottom:.25rem;display:block}.calc-result-value{font-size:1.75rem;font-weight:800;color:var(--primary-color)}.calc-result-value.accent{color:var(--accent-color)}.showcase-header{text-align:center;margin:5rem 0 2.5rem}.showcase-filters{display:flex;justify-content:center;gap:.75rem;margin-bottom:3rem;flex-wrap:wrap}.filter-btn{background:white;border:1px solid var(--border-color);color:var(--text-muted);padding:.5rem 1.25rem;border-radius:50px;font-weight:600;font-size:.9rem;cursor:pointer;transition:all .2s ease}.filter-btn:hover{color:var(--text-dark);border-color:#cbd5e1}.filter-btn.active{background:var(--primary-color);color:#fff;border-color:var(--primary-color);box-shadow:0 4px 10px #2563eb33}