/* Radmin VPN clone - shared styles */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;color:#1a2340;background:#fff;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:#1e6cf1;text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:blur(8px);border-bottom:1px solid #eef1f6}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:20px;color:#0e1a3a}
.brand img{width:36px;height:36px}
.nav-links{display:flex;gap:28px;align-items:center;list-style:none}
.nav-links a{color:#334;font-weight:500}
.nav-links a.active{color:#1e6cf1}
.lang{display:flex;gap:8px;font-size:14px}
.lang a{padding:4px 10px;border:1px solid #dfe3ec;border-radius:6px;color:#556}
.lang a.on{background:#1e6cf1;border-color:#1e6cf1;color:#fff}
.mobile-toggle{display:none}

/* Hero */
.hero{position:relative;background:#050b25 url('https://www.radminvnp.com/assets/images/hero-bg.jpg') center/cover no-repeat;color:#fff;padding:96px 0 80px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,11,37,.65) 0%,rgba(5,11,37,.85) 100%)}
.hero .container{position:relative;text-align:center}
.hero h1{font-size:clamp(32px,5vw,54px);font-weight:800;line-height:1.15;letter-spacing:-.02em;margin-bottom:16px}
.hero p.lead{font-size:20px;color:#c5cee5;margin-bottom:32px}
.btn{display:inline-block;padding:16px 32px;border-radius:8px;font-weight:600;font-size:16px;transition:transform .15s,box-shadow .15s;text-decoration:none;border:none;cursor:pointer}
.btn-primary{background:linear-gradient(135deg,#1e6cf1,#2ea4ff);color:#fff;box-shadow:0 8px 24px rgba(30,108,241,.4)}
.btn-primary:hover{transform:translateY(-2px);text-decoration:none;color:#fff}
.btn-secondary{background:#fff;color:#1e6cf1;border:2px solid #1e6cf1}
.btn-secondary:hover{background:#1e6cf1;color:#fff;text-decoration:none}
.hero .meta{margin-top:20px;font-size:14px;color:#9fb0d1}
.hero .meta a{color:#8fc0ff}

.hero-gallery{margin-top:56px;display:grid;grid-template-columns:repeat(3,1fr);gap:20px;position:relative}
.hero-gallery img{border-radius:12px;box-shadow:0 20px 50px rgba(0,0,0,.4);border:1px solid rgba(255,255,255,.1)}

/* Sections */
section{padding:80px 0}
.section-title{text-align:center;font-size:36px;font-weight:800;margin-bottom:16px;color:#0e1a3a;letter-spacing:-.01em}
.section-sub{text-align:center;color:#5a6784;max-width:720px;margin:0 auto 48px;font-size:17px}

/* Features grid */
.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px}
.feature-card{background:#fff;border:1px solid #eef1f6;border-radius:12px;padding:32px 24px;transition:transform .2s,box-shadow .2s}
.feature-card:hover{transform:translateY(-4px);box-shadow:0 20px 40px rgba(14,26,58,.08)}
.feature-icon{width:52px;height:52px;border-radius:12px;background:linear-gradient(135deg,#e8f0ff,#d4e5ff);display:flex;align-items:center;justify-content:center;margin-bottom:16px;font-size:26px}
.feature-card h3{font-size:18px;margin-bottom:8px;color:#0e1a3a}
.feature-card p{color:#5a6784;font-size:15px}

/* Use cases */
.usecases{background:#f7f9fc}
.usecase{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin-bottom:64px}
.usecase:last-child{margin-bottom:0}
.usecase.reverse{direction:rtl}
.usecase.reverse > *{direction:ltr}
.usecase h3{font-size:26px;margin-bottom:12px;color:#0e1a3a}
.usecase p{color:#4a5878;font-size:16px}
.usecase-img{background:linear-gradient(135deg,#1e6cf1,#0b3a99);border-radius:16px;padding:48px;color:#fff;text-align:center;font-size:64px;min-height:220px;display:flex;align-items:center;justify-content:center}

/* Pricing */
.pricing-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;max-width:1000px;margin:0 auto}
.price-card{background:#fff;border:1px solid #eef1f6;border-radius:16px;padding:40px 32px;text-align:center;position:relative}
.price-card.featured{border-color:#1e6cf1;border-width:2px;box-shadow:0 20px 50px rgba(30,108,241,.15);transform:scale(1.03)}
.price-badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:#1e6cf1;color:#fff;padding:6px 16px;border-radius:20px;font-size:13px;font-weight:600}
.price-card h3{font-size:22px;margin-bottom:8px}
.price{font-size:48px;font-weight:800;color:#0e1a3a;margin:16px 0}
.price span{font-size:16px;color:#5a6784;font-weight:400}
.price-features{list-style:none;text-align:left;margin:24px 0}
.price-features li{padding:8px 0;color:#4a5878;padding-left:28px;position:relative}
.price-features li::before{content:"✓";position:absolute;left:0;color:#22c55e;font-weight:700}

/* Download */
.download-hero{background:linear-gradient(135deg,#0e1a3a,#1e3a8a);color:#fff;padding:80px 0;text-align:center}
.download-hero h1{font-size:44px;margin-bottom:16px}
.download-hero p{font-size:18px;color:#c5cee5;margin-bottom:32px}
.platforms{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px;margin-top:48px}
.platform-card{background:#fff;border:1px solid #eef1f6;border-radius:12px;padding:32px;text-align:center}
.platform-icon{font-size:56px;margin-bottom:16px}
.platform-card h3{margin-bottom:8px}
.platform-card p{color:#5a6784;margin-bottom:20px;font-size:14px}

/* Why */
.why-list{display:grid;grid-template-columns:1fr;gap:24px;max-width:900px;margin:0 auto}
.why-item{display:flex;gap:24px;padding:32px;background:#fff;border-radius:12px;border:1px solid #eef1f6}
.why-num{flex-shrink:0;width:56px;height:56px;border-radius:12px;background:linear-gradient(135deg,#1e6cf1,#2ea4ff);color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:800}
.why-item h3{margin-bottom:8px;font-size:20px}
.why-item p{color:#5a6784}

/* CTA banner */
.cta-banner{background:linear-gradient(135deg,#1e6cf1,#0b3a99);color:#fff;text-align:center;padding:64px 0}
.cta-banner h2{font-size:32px;margin-bottom:16px}
.cta-banner p{margin-bottom:24px;color:#d5e3ff}

/* Footer */
.site-footer{background:#0e1a3a;color:#c5cee5;padding:56px 0 24px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-grid h4{color:#fff;margin-bottom:16px;font-size:16px}
.footer-grid ul{list-style:none}
.footer-grid li{margin-bottom:8px}
.footer-grid a{color:#9fb0d1;font-size:14px}
.footer-grid a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:24px;text-align:center;font-size:13px;color:#7a8ab0}

/* Responsive */
@media(max-width:820px){
  .nav-links{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;padding:16px;border-bottom:1px solid #eef1f6}
  .nav-links.open{display:flex}
  .mobile-toggle{display:block;background:none;border:none;font-size:24px;cursor:pointer;color:#0e1a3a}
  .hero-gallery{grid-template-columns:1fr}
  .usecase{grid-template-columns:1fr;gap:24px}
  .usecase.reverse{direction:ltr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
  .price-card.featured{transform:none}
}