:root{--primary: #6366f1;--primary-dark: #4f46e5;--primary-light: #a5b4fc;--primary-glow: rgba(99, 102, 241, .5);--primary-glow-intense: rgba(99, 102, 241, .7);--accent-purple: #a855f7;--accent-pink: #ec4899;--accent-cyan: #22d3ee;--success: #10b981;--warning: #f59e0b;--error: #ef4444;--bg: #050810;--bg-secondary: #0a0e1a;--surface: #0f1629;--surface-elevated: #1a2035;--surface-hover: #252d45;--text: #f8fafc;--text-muted: #94a3b8;--text-dim: #64748b;--gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 40%, #ec4899 100%);--gradient-subtle: linear-gradient(135deg, rgba(99, 102, 241, .15) 0%, rgba(168, 85, 247, .1) 50%, rgba(236, 72, 153, .05) 100%);--gradient-mesh: radial-gradient(ellipse at 20% 0%, rgba(99, 102, 241, .15) 0%, transparent 50%), radial-gradient(ellipse at 80% 100%, rgba(168, 85, 247, .1) 0%, transparent 50%);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .2);--shadow-md: 0 8px 24px rgba(0, 0, 0, .25);--shadow-lg: 0 20px 48px rgba(0, 0, 0, .4);--shadow-glow: 0 0 60px rgba(99, 102, 241, .35);--shadow-glow-pink: 0 0 40px rgba(236, 72, 153, .25);--glass-bg: rgba(15, 22, 41, .7);--glass-border: rgba(255, 255, 255, .08);--glass-border-hover: rgba(99, 102, 241, .4)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;min-height:100vh;position:relative}body:before{content:"";position:fixed;inset:0;background:var(--gradient-mesh);pointer-events:none;z-index:0}.container{max-width:800px;margin:0 auto;padding:0 24px;position:relative;z-index:1}.nav{padding:16px 0;border-bottom:1px solid var(--glass-border);position:sticky;top:0;background:#050810cc;backdrop-filter:blur(24px) saturate(200%);-webkit-backdrop-filter:blur(24px) saturate(200%);z-index:100;transition:all .3s ease}.nav:after{content:"";position:absolute;bottom:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(99,102,241,.5),transparent);opacity:0;transition:opacity .3s ease}.nav:hover:after{opacity:1}.nav .container{display:flex;justify-content:space-between;align-items:center}.logo{font-size:24px;font-weight:800;background:var(--gradient);background-size:200% 200%;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-decoration:none;animation:gradientShift 8s ease infinite;letter-spacing:-.02em;transition:transform .3s ease}.logo:hover{transform:scale(1.05)}@keyframes gradientShift{0%,to{background-position:0% 50%}50%{background-position:100% 50%}}.lang-switcher{display:flex;gap:8px}.lang-switcher a{color:var(--text-muted);text-decoration:none;font-size:13px;font-weight:600;padding:6px 12px;border-radius:8px;transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden}.lang-switcher a:before{content:"";position:absolute;inset:0;background:var(--gradient);opacity:0;transition:opacity .3s ease;border-radius:8px;z-index:-1}.lang-switcher a:hover{color:var(--text);transform:translateY(-2px)}.lang-switcher a.active{color:#fff;background:#6366f133;box-shadow:0 0 20px #6366f14d}.lang-switcher a.active:before{opacity:.8}.hero{padding:80px 0 60px;text-align:center;position:relative}.hero h1{font-size:clamp(36px,6vw,56px);font-weight:900;margin-bottom:20px;line-height:1.1;letter-spacing:-.03em;background:linear-gradient(135deg,#fff,#e0e7ff);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;animation:fadeInUp .8s ease}.hero p{color:var(--text-muted);font-size:20px;line-height:1.6;max-width:600px;margin:0 auto;animation:fadeInUp .8s ease .1s both}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.trust-badge{display:inline-flex;align-items:center;gap:12px;margin-top:32px;color:var(--text-muted);font-size:15px;animation:fadeInUp .8s ease .2s both;padding:12px 24px;background:#ffffff08;border-radius:100px;border:1px solid rgba(255,255,255,.08);backdrop-filter:blur(10px)}.trust-badge span{color:#10b981;font-weight:600}.calculator-section{padding:40px 0 80px;animation:fadeInUp .8s ease .3s both}.calculator-wrapper{background:linear-gradient(145deg,var(--surface) 0%,rgba(10,15,30,.95) 100%);border-radius:28px;padding:8px;box-shadow:0 50px 100px -30px #000000b3,0 0 0 1px var(--glass-border),var(--shadow-glow);backdrop-filter:blur(40px);-webkit-backdrop-filter:blur(40px);position:relative;overflow:hidden;transition:transform .4s cubic-bezier(.4,0,.2,1),box-shadow .4s ease}.calculator-wrapper:before{content:"";position:absolute;inset:-1px;background:var(--gradient);border-radius:inherit;z-index:-1;opacity:0;transition:opacity .4s ease}.calculator-wrapper:hover{transform:translateY(-6px);box-shadow:0 60px 120px -35px #000c,0 0 0 1px var(--glass-border-hover),var(--shadow-glow),var(--shadow-glow-pink)}.calculator-wrapper:hover:before{opacity:.15}.content-section{padding:80px 0}.content-section h2{font-size:32px;font-weight:800;margin-bottom:32px;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.02em}.content-section h3{font-size:22px;font-weight:700;margin:32px 0 16px;color:var(--text)}.content-section p{color:var(--text-muted);margin-bottom:20px;line-height:1.8;font-size:16px}.content-section ul{color:var(--text-muted);padding-left:28px;margin-bottom:20px}.content-section li{margin-bottom:12px;line-height:1.7}.faq-section{padding:80px 0;background:linear-gradient(135deg,#1a1f3580,#1e293b4d);position:relative}.faq-section:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 50%,rgba(99,102,241,.05),transparent 70%);pointer-events:none}.faq-section h2{text-align:center;font-size:36px;font-weight:800;margin-bottom:48px;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.02em}.faq-item{background:#0a0e1a99;border-radius:16px;margin-bottom:16px;overflow:hidden;border:1px solid rgba(255,255,255,.05);transition:all .3s ease;backdrop-filter:blur(10px)}.faq-item:hover{border-color:#6366f14d;box-shadow:0 8px 24px #0003}.faq-question{padding:24px 28px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:16px;transition:all .3s ease}.faq-question:hover{background:#ffffff0d;color:var(--primary-light)}.faq-icon{color:var(--primary);font-size:24px;font-weight:300;transition:transform .4s cubic-bezier(.4,0,.2,1),color .3s ease;width:28px;height:28px;display:flex;align-items:center;justify-content:center;background:#6366f11a;border-radius:8px}.faq-item.open .faq-icon{transform:rotate(45deg);background:#6366f133;color:var(--primary-light)}.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s cubic-bezier(.4,0,.2,1),opacity .3s ease;opacity:0}.faq-item.open .faq-answer{max-height:500px;opacity:1}.faq-answer p{padding:0 28px 24px;color:var(--text-muted);line-height:1.8;font-size:15px}.embed-cta{padding:80px 0;text-align:center;position:relative}.embed-cta:before{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:400px;height:400px;background:radial-gradient(circle,rgba(99,102,241,.1),transparent 70%);pointer-events:none}.embed-cta h2{font-size:36px;font-weight:800;margin-bottom:20px;letter-spacing:-.02em}.embed-cta p{color:var(--text-muted);margin-bottom:32px;font-size:18px;line-height:1.7}.btn{display:inline-flex;align-items:center;gap:10px;padding:16px 36px;border-radius:12px;font-size:16px;font-weight:700;text-decoration:none;transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden;border:none;cursor:pointer}.btn:before{content:"";position:absolute;top:50%;left:50%;width:0;height:0;border-radius:50%;background:#ffffff26;transform:translate(-50%,-50%);transition:width .5s ease,height .5s ease}.btn:hover:before{width:350px;height:350px}.btn-primary{background:var(--gradient);background-size:200% 200%;color:#fff;box-shadow:0 8px 24px #6366f159,inset 0 1px #fff3;animation:gradientShift 6s ease infinite}.btn-primary:hover{transform:translateY(-3px) scale(1.02);box-shadow:0 16px 40px #6366f173,0 0 30px #a855f74d,inset 0 1px #ffffff40}.btn-primary:active{transform:translateY(-1px) scale(1)}.footer{padding:60px 0 40px;border-top:1px solid rgba(255,255,255,.08);text-align:center;background:linear-gradient(to bottom,transparent,rgba(10,14,26,.5))}.footer-links{display:flex;justify-content:center;flex-wrap:wrap;gap:32px;margin-bottom:24px;list-style:none}.footer-links a{color:var(--text-muted);text-decoration:none;font-size:14px;font-weight:500;transition:all .3s ease;position:relative}.footer-links a:after{content:"";position:absolute;bottom:-4px;left:0;width:0;height:2px;background:var(--gradient);transition:width .3s ease}.footer-links a:hover{color:var(--primary-light);transform:translateY(-2px)}.footer-links a:hover:after{width:100%}.footer p{color:var(--text-dim);font-size:14px;opacity:.8}@media(max-width:640px){.hero{padding:40px 0 30px}.hero h1{font-size:28px}.calculator-wrapper{padding:12px;border-radius:16px}}.edition-badge{color:var(--primary-light);background:linear-gradient(135deg,#6366f133,#a855f726);padding:6px 14px;border-radius:8px;font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:1px;border:1px solid rgba(99,102,241,.3);box-shadow:0 4px 12px #6366f126;backdrop-filter:blur(10px)}.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px;margin-top:32px}.related-card{background:var(--surface);padding:24px;border-radius:16px;text-decoration:none;transition:all .35s cubic-bezier(.4,0,.2,1);border:1px solid var(--glass-border);position:relative;overflow:hidden}.related-card:before{content:"";position:absolute;inset:0;background:var(--gradient-subtle);opacity:0;transition:opacity .35s ease;pointer-events:none}.related-card:hover{transform:translateY(-6px);border-color:var(--glass-border-hover);box-shadow:0 20px 50px -15px #00000080,0 0 30px #6366f126}.related-card:hover:before{opacity:1}.related-card h3{color:var(--text);font-size:19px;font-weight:700;margin-bottom:12px;position:relative;z-index:1;transition:color .3s ease}.related-card:hover h3{color:var(--primary-light)}.related-card p{color:var(--text-muted);font-size:15px;margin-bottom:0;line-height:1.6;position:relative;z-index:1}.section-tag{display:inline-block;color:var(--primary-light);font-size:13px;font-weight:700;margin-bottom:12px;text-transform:uppercase;letter-spacing:2px;padding:4px 0;position:relative}.section-tag:after{content:"";position:absolute;bottom:0;left:0;width:40px;height:2px;background:var(--gradient)}
