:root{--primary:#1E40AF;--secondary:#06B6D4;--accent:#FBBF24;--text:#1F2937;--bg:#F3F4F6;--gradient:linear-gradient(135deg,var(--secondary) 0%,var(--primary) 100%);--gradient-accent:linear-gradient(45deg,var(--accent),#F59E0B);--shadow-sm:0 4px 12px rgba(0,0,0,0.06);--shadow-md:0 8px 20px rgba(0,0,0,0.08);--shadow-lg:0 12px 32px rgba(0,0,0,0.12);--border-radius:1rem;--transition:all 0.3s cubic-bezier(0.33,1,0.68,1);--glass-bg:rgba(255,255,255,0.85);--blur:blur(12px)}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;color:var(--text);background:var(--bg);line-height:1.7;margin:0;font-size:1.05rem;overflow-x:hidden}
html{scroll-behavior:smooth}

.navbar.scrolled{background:rgba(255,255,255,0.95);box-shadow:var(--shadow-md)}
.navbar .nav-link{font-weight:600;color:var(--text);position:relative;padding:0.5rem 1rem;text-transform:uppercase;letter-spacing:0.02em;transition:var(--transition)}
.navbar .nav-link:hover,.navbar .nav-link.active{color:var(--primary);transform:translateY(-2px)}
.navbar .nav-link::after{content:'';position:absolute;bottom:0;left:50%;width:0;height:2px;background:var(--gradient);transition:var(--transition);transform:translateX(-50%)}
.navbar .nav-link:hover::after,.navbar .nav-link.active::after{width:60%}
.hero-section{background:var(--gradient);padding:clamp(6rem,12vw,8rem) 0 clamp(4rem,8vw,6rem);position:relative;overflow:hidden;color:#fff;text-align:center;isolation:isolate}
.hero-section::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 50% 30%,rgba(255,255,255,0.2),transparent 70%);z-index:-1}
.hero-section::after{content:'';position:absolute;bottom:-4rem;left:0;width:100%;height:8rem;background:var(--bg);transform:skewY(-4deg);z-index:-1}
.hero-section h1{font-size:clamp(2.5rem,6vw,4rem);font-weight:800;text-shadow:0 4px 12px rgba(0,0,0,0.15);margin-bottom:1.5rem;animation:fadeInUp 1s ease-out}
.hero-section p{font-size:clamp(1rem,2vw,1.25rem);opacity:0.9;max-width:600px;margin:0 auto}
@keyframes fadeInUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.price-card{background:var(--glass-bg);backdrop-filter:var(--blur);border-radius:var(--border-radius);box-shadow:var(--shadow-md);position:relative;overflow:hidden;transition:var(--transition);margin:1.5rem;padding:2rem}
.price-card::before{content:'';position:absolute;top:0;left:0;width:100%;height:4px;background:var(--gradient);transition:var(--transition)}
.price-card:hover{transform:translateY(-0.75rem) scale(1.02);box-shadow:var(--shadow-lg)}
.price-card:hover::before{height:8px}
.price-card.pro-card{border:2px solid var(--accent);background:linear-gradient(180deg,rgba(255,255,255,0.95),rgba(251,191,36,0.05))}
.price-card.pro-card .card-title{background:var(--gradient-accent);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:700}
.footer{background:linear-gradient(180deg,var(--text),#111827);color:#fff;padding:clamp(4rem,8vw,6rem) 0 clamp(2rem,4vw,3rem);margin-top:6rem;position:relative}
.footer::before{content:'';position:absolute;top:-4rem;left:0;width:100%;height:8rem;background:var(--bg);transform:skewY(4deg)}
.footer .footer-links a{color:rgba(255,255,255,0.85);text-decoration:none;font-weight:500;transition:var(--transition);display:inline-block}
.footer .footer-links a:hover{color:var(--secondary);transform:translateX(0.5rem)}
.footer .social-icons a{--size:2.75rem;width:var(--size);height:var(--size);background:rgba(255,255,255,0.15);border-radius:50%;display:inline-flex;align-items:center;justify-content:center;transition:var(--transition);position:relative;overflow:hidden}
.footer .social-icons a::before{content:'';position:absolute;inset:0;background:var(--secondary);opacity:0;transition:var(--transition)}
.footer .social-icons a:hover::before{opacity:1}
.footer .social-icons a:hover{transform:translateY(-0.25rem) scale(1.1);box-shadow:0 4px 12px rgba(0,0,0,0.2)}
.auth-section{min-height:100vh;background:var(--gradient);display:flex;align-items:center;justify-content:center;padding:2rem;position:relative}
.auth-section::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 20% 80%,rgba(255,255,255,0.3),transparent 70%);z-index:-1}
.auth-section .auth-card{background:var(--glass-bg);backdrop-filter:var(--blur);border-radius:var(--border-radius);box-shadow:var(--shadow-lg);max-width:520px;width:100%;padding:2rem;position:relative;overflow:hidden}
.auth-section .auth-card::before{content:'';position:absolute;top:0;left:0;width:100%;height:4px;background:var(--gradient-accent)}
.auth-section .auth-card .nav-link{padding:1rem 2rem;font-weight:600;color:var(--text);transition:var(--transition)}
.auth-section .auth-card .nav-link.active{background:var(--gradient);color:#fff;border-radius:0.5rem}
.auth-section .form-control{border:2px solid rgba(0,0,0,0.1);border-radius:0.5rem;padding:0.85rem;background:rgba(255,255,255,0.5);transition:var(--transition)}
.auth-section .form-control:focus{border-color:var(--primary);box-shadow:0 0 0 0.25rem rgba(30,64,175,0.2);background:#fff;outline:none}
.api-table{background:var(--glass-bg);backdrop-filter:var(--blur);border-radius:var(--border-radius);box-shadow:var(--shadow-md);overflow:hidden}
.api-table th{background:var(--gradient);color:#fff;font-weight:600;padding:1.25rem 1.75rem;text-align:left}
.account-info,.payment-content,.qr-code{background:var(--glass-bg);backdrop-filter:var(--blur);padding:1.75rem;border-radius:var(--border-radius);box-shadow:var(--shadow-md);margin-bottom:1.75rem;position:relative;overflow:hidden}
.account-info::before,.payment-content::before,.qr-code::before{content:'';position:absolute;top:0;left:0;width:100%;height:3px;background:var(--gradient-accent)}
.account-info p,.payment-content p{font-size:1.05rem;font-weight:600;color:var(--text);margin:0}
.bank-info{display:flex;align-items:center;font-size:1.15rem;font-weight:600;color:var(--text);padding:1rem;border-radius:0.75rem;transition:var(--transition);background:rgba(255,255,255,0.5)}
.bank-info:hover{background:rgba(255,255,255,0.9);box-shadow:var(--shadow-sm);transform:translateY(-2px)}
.bank-info img{width:90px;margin-right:1.25rem;border-radius:0.5rem;border:2px solid var(--primary);transition:var(--transition)}
.bank-info:hover img{transform:scale(1.08);box-shadow:0 4px 12px rgba(0,0,0,0.1)}
.bank-label{font-size:1.15rem;font-weight:600;color:var(--text)}
.bank-name{font-size:0.95rem;color:#4B5563}
.qr-code img{border-radius:0.75rem;box-shadow:var(--shadow-sm);max-width:100%;transition:var(--transition)}
.qr-code img:hover{transform:scale(1.05)}
.footer-text p{color:var(--primary);font-weight:600;font-size:1.15rem;margin-top:0.75rem;transition:var(--transition)}
.footer-text:hover p{color:var(--secondary);font-size:1.25rem;text-shadow:0 2px 4px rgba(0,0,0,0.1)}
.text-center{text-align:center}
.mb-4{margin-bottom:1.75rem}
@media (max-width:768px){.hero-section{padding:4rem 0 2.5rem}.hero-section::after{bottom:-2.5rem;height:5rem}.hero-section h1{font-size:clamp(2rem,5vw,3rem)}.footer{text-align:center;padding:3rem 0 2rem}.footer::before{top:-2.5rem;height:5rem}.footer .social-icons{justify-content:center;margin-top:1.25rem}.navbar-brand img{width:1.75rem}.price-card{margin:1rem;padding:1.5rem}.bank-info img{width:70px}.auth-section .auth-card{padding:1.5rem}}
@media (max-width:576px){.hero-section h1{font-size:clamp(1.75rem,4vw,2.5rem)}.navbar{padding:0.75rem 1rem}.price-card{padding:1rem}.bank-info{flex-direction:column;text-align:center}.bank-info img{margin-right:0;margin-bottom:0.75rem}}