:root{--bg-primary: #0a0d14;--bg-secondary: #121826;--bg-card: rgba(22, 30, 48, .7);--bg-card-border: rgba(255, 255, 255, .1);--text-primary: #f3f4f6;--text-secondary: #9ca3af;--text-muted: #6b7280;--brand-cyan: #00f0ff;--brand-purple: #8a2be2;--brand-emerald: #10b981;--brand-gradient: linear-gradient(135deg, #00f0ff 0%, #8a2be2 100%);--font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;--font-mono: "JetBrains Mono", "Fira Code", Menlo, monospace}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-primary);color:var(--text-primary);font-family:var(--font-sans);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--brand-cyan);outline-offset:2px}.container{max-width:1200px;margin:0 auto;padding:0 24px}header{position:sticky;top:0;z-index:50;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background-color:#0a0d14d9;border-bottom:1px solid var(--bg-card-border)}.nav-container{display:flex;align-items:center;justify-content:space-between;height:72px}.brand-logo{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:800;font-size:1.35rem;color:#fff;letter-spacing:-.02em}.brand-logo svg{width:32px;height:32px;filter:drop-shadow(0 0 8px var(--brand-cyan))}nav ul{display:flex;list-style:none;gap:32px;align-items:center}nav a{color:var(--text-secondary);text-decoration:none;font-size:.95rem;font-weight:500;transition:color .2s ease}nav a:hover{color:var(--brand-cyan)}.nav-actions{display:flex;align-items:center;gap:16px}.lang-selector{background:var(--bg-secondary);color:var(--text-primary);border:1px solid var(--bg-card-border);padding:6px 12px;border-radius:8px;font-size:.85rem;cursor:pointer}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border-radius:8px;font-size:.95rem;font-weight:600;text-decoration:none;cursor:pointer;transition:all .2s ease;border:none}.btn-primary{background:var(--brand-gradient);color:#0a0d14;box-shadow:0 4px 20px #00f0ff4d}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 25px #00f0ff73}.btn-secondary{background:var(--bg-card);color:var(--text-primary);border:1px solid var(--bg-card-border)}.btn-secondary:hover{border-color:var(--brand-cyan);background:#ffffff0d}.hero-section{padding:100px 0 80px;text-align:center;position:relative}.hero-badge{display:inline-flex;align-items:center;gap:8px;background:#00f0ff1a;border:1px solid rgba(0,240,255,.25);color:var(--brand-cyan);padding:6px 16px;border-radius:100px;font-size:.875rem;font-weight:600;margin-bottom:24px}.hero-title{font-size:3.8rem;line-height:1.15;font-weight:800;letter-spacing:-.03em;margin-bottom:24px}.text-gradient{background:var(--brand-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.hero-desc{max-width:680px;margin:0 auto 40px;font-size:1.25rem;color:var(--text-secondary)}.hero-buttons{display:flex;justify-content:center;gap:16px;margin-bottom:60px}.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:800px;margin:0 auto}.stat-card{background:var(--bg-card);border:1px solid var(--bg-card-border);padding:24px;border-radius:12px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.stat-value{font-size:2.2rem;font-weight:800;color:var(--brand-cyan);margin-bottom:4px}.stat-label{font-size:.9rem;color:var(--text-secondary)}.pricing-section{padding:100px 0;background:linear-gradient(180deg,var(--bg-primary) 0%,#0d131f 100%)}.section-header{text-align:center;margin-bottom:60px}.section-title{font-size:2.5rem;font-weight:800;margin-bottom:16px;letter-spacing:-.02em}.section-subtitle{font-size:1.15rem;color:var(--text-secondary);max-width:600px;margin:0 auto}.calculator-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:start}.calculator-card{background:var(--bg-card);border:1px solid var(--bg-card-border);border-radius:16px;padding:36px}.slider-group{margin-bottom:28px}.slider-header{display:flex;justify-content:space-between;margin-bottom:10px;font-weight:600;font-size:.95rem}.slider-val{color:var(--brand-cyan);font-family:var(--font-mono)}input[type=range]{width:100%;height:6px;background:#1f293d;border-radius:4px;outline:none;cursor:pointer;accent-color:var(--brand-cyan)}.calculator-summary{background:var(--bg-secondary);border:1px solid rgba(0,240,255,.3);box-shadow:0 10px 40px #00000080;border-radius:16px;padding:36px}.total-display{text-align:center;padding-bottom:24px;border-bottom:1px solid var(--bg-card-border);margin-bottom:24px}.total-amount{font-size:3.5rem;font-weight:900;color:#fff;font-family:var(--font-mono)}.total-sub{color:var(--brand-emerald);font-weight:600;font-size:.95rem;margin-top:8px}.breakdown-row{display:flex;justify-content:space-between;padding:10px 0;font-size:.95rem;color:var(--text-secondary)}.breakdown-val{color:#fff;font-family:var(--font-mono)}.ai-section{padding:100px 0}.code-box{background:#090c13;border:1px solid var(--bg-card-border);border-radius:12px;overflow:hidden;margin-top:24px}.code-header{display:flex;justify-content:space-between;align-items:center;background:#111624;padding:12px 20px;border-bottom:1px solid var(--bg-card-border)}.tab-btn{background:none;border:none;color:var(--text-muted);padding:6px 14px;font-size:.875rem;font-weight:600;cursor:pointer;border-radius:6px}.tab-btn.active{background:var(--bg-card);color:var(--brand-cyan)}pre{padding:24px;font-family:var(--font-mono);font-size:.9rem;line-height:1.6;color:#e2e8f0;overflow-x:auto}.features-section{padding:100px 0;background:var(--bg-secondary)}.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}.feature-card{background:var(--bg-card);border:1px solid var(--bg-card-border);padding:32px;border-radius:14px;transition:transform .2s,border-color .2s}.feature-card:hover{transform:translateY(-4px);border-color:var(--brand-cyan)}.feature-icon{width:48px;height:48px;border-radius:10px;background:#00f0ff1a;color:var(--brand-cyan);display:flex;align-items:center;justify-content:center;margin-bottom:20px}.feature-title{font-size:1.25rem;font-weight:700;margin-bottom:12px}.feature-desc{color:var(--text-secondary);font-size:.95rem}footer{border-top:1px solid var(--bg-card-border);padding:50px 0 30px;color:var(--text-muted);font-size:.9rem}.footer-content{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.status-badge{display:inline-flex;align-items:center;gap:8px;color:var(--brand-emerald);font-weight:600;font-size:.85rem}.status-dot{width:8px;height:8px;border-radius:50%;background:var(--brand-emerald);box-shadow:0 0 8px var(--brand-emerald)}@media (max-width: 900px){.calculator-grid,.hero-stats,.features-grid{grid-template-columns:1fr}.hero-title{font-size:2.6rem}}