*{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#0a0a1a;--bg2:#12122a;--bg3:#1a1a3a;
  --accent:#6c5ce7;--accent2:#00cec9;--accent-glow:rgba(108,92,231,0.4);
  --text:#e2e2f0;--text2:#9a9ab5;--white:#fff;
  --card:#16163a;--card-border:rgba(108,92,231,0.3);
  --green:#00b894;--pink:#fd79a8;
}
html{scroll-behavior:smooth;touch-action:pan-y;overflow-x:hidden}
body{font-family:'Inter',sans-serif;background:var(--bg);color:var(--text);overflow-x:hidden;min-height:100vh;display:flex;flex-direction:column;-webkit-text-size-adjust:100%}
.page{display:none;opacity:0;transform:translateY(20px);transition:opacity .4s,transform .4s;flex:1;padding:20px 40px 60px;padding-top:100px;touch-action:pan-y}

nav{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;flex-direction:column;padding:10px 16px 6px;background:rgba(10,10,26,0.9);backdrop-filter:blur(20px);border-bottom:1px solid rgba(108,92,231,0.15);overflow:hidden}
.logo{font-size:1.4rem;font-weight:800;background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;white-space:nowrap;text-align:center;margin-bottom:6px}
.nav-links{display:flex;gap:6px;background:var(--bg2);border-radius:12px;padding:4px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;justify-content:center}
.nav-links::-webkit-scrollbar{display:none}
.nav-links button{background:none;border:none;color:var(--text2);padding:10px 24px;border-radius:10px;cursor:pointer;font-family:inherit;font-weight:600;font-size:0.9rem;transition:all .3s}
.nav-links button.active{background:linear-gradient(135deg,var(--accent),#a855f7);color:var(--white);box-shadow:0 4px 20px var(--accent-glow)}
.nav-links button:hover:not(.active){color:var(--white)}

.steps-bar{display:flex;align-items:center;justify-content:center;gap:0;padding:100px 20px 0}
.step-dot{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:0.85rem;background:var(--bg2);color:var(--text2);border:2px solid rgba(108,92,231,0.2);transition:all .4s}
.step-dot.active{background:linear-gradient(135deg,var(--accent),#a855f7);color:#fff;border-color:var(--accent);box-shadow:0 0 20px var(--accent-glow)}
.step-dot.done{background:var(--green);color:#fff;border-color:var(--green)}
.step-line{width:60px;height:2px;background:rgba(108,92,231,0.2);transition:background .4s}
.step-line.done{background:var(--green)}

.page.visible{display:block;opacity:1;transform:translateY(0)}

/* HERO */
.hero{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;min-height:85vh;position:relative}
.hero::before{content:'';position:absolute;top:50%;left:50%;width:600px;height:600px;background:radial-gradient(circle,var(--accent-glow),transparent 70%);transform:translate(-50%,-50%);pointer-events:none;filter:blur(60px)}
.hero h1{font-size:clamp(2.2rem,5vw,4rem);font-weight:800;line-height:1.15;margin-bottom:20px;background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.hero p{font-size:1.15rem;color:var(--text2);max-width:540px;margin-bottom:40px;line-height:1.7}
.hero-btn{padding:16px 48px;font-size:1.05rem;font-weight:700;border:none;border-radius:14px;cursor:pointer;background:linear-gradient(135deg,var(--accent),#a855f7);color:#fff;font-family:inherit;transition:all .3s;box-shadow:0 8px 30px var(--accent-glow)}
.hero-btn:hover{transform:translateY(-3px);box-shadow:0 12px 40px var(--accent-glow)}

.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:24px;max-width:1100px;margin:60px auto 0;width:100%}
.feature-card{background:var(--card);border:1px solid var(--card-border);border-radius:16px;padding:32px 24px;text-align:center;transition:all .3s}
.feature-card:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:0 8px 30px rgba(108,92,231,0.2)}
.feature-icon{font-size:2.4rem;margin-bottom:14px}
.feature-card h3{font-size:1.05rem;margin-bottom:8px;color:var(--white)}
.feature-card p{font-size:0.88rem;color:var(--text2);line-height:1.6}

/* TARIFFS */
.tariffs-page{padding-top:30px}
.tariffs-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:28px;max-width:960px;margin:40px auto 0;width:100%}
.tariff-card{background:var(--card);border:2px solid var(--card-border);border-radius:20px;padding:36px 28px;display:flex;flex-direction:column;position:relative;transition:all .3s;cursor:pointer}
.tariff-card:hover,.tariff-card.selected{border-color:var(--accent);box-shadow:0 8px 40px rgba(108,92,231,0.25);transform:translateY(-4px)}
.tariff-card.selected::after{content:'\2713';position:absolute;top:16px;right:16px;width:28px;height:28px;background:var(--green);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:0.8rem;font-weight:700}
.badge{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:linear-gradient(135deg,var(--accent),var(--pink));color:#fff;padding:5px 18px;border-radius:20px;font-size:0.75rem;font-weight:700;white-space:nowrap}
.tariff-name{font-size:1.2rem;font-weight:700;color:var(--white);margin-top:8px}
.tariff-price{font-size:2.4rem;font-weight:800;color:var(--white);margin:12px 0 4px}
.tariff-price span{font-size:0.9rem;font-weight:500;color:var(--text2)}
.tariff-old{font-size:0.95rem;color:var(--text2);text-decoration:line-through;margin-bottom:4px}
.tariff-features{list-style:none;margin:20px 0;flex:1}
.tariff-features li{padding:8px 0;font-size:0.9rem;color:var(--text2);border-bottom:1px solid rgba(255,255,255,0.05)}
.tariff-features li::before{content:'\2713 ';color:var(--accent);font-weight:700}
.tariff-btn{width:100%;padding:14px;border:none;border-radius:12px;font-family:inherit;font-weight:700;font-size:0.95rem;cursor:pointer;transition:all .3s;background:var(--bg2);color:var(--text2);border:2px solid rgba(108,92,231,0.2)}
.tariff-card.selected .tariff-btn{background:linear-gradient(135deg,var(--accent),#a855f7);color:#fff;border-color:var(--accent);box-shadow:0 4px 20px var(--accent-glow)}
.tariff-btn:hover{border-color:var(--accent);color:var(--white)}
.guarantee{text-align:center;margin-top:36px;color:var(--text2);font-size:0.88rem}
.guarantee span{color:var(--green)}

.month-btn{padding:8px 18px;border:2px solid rgba(108,92,231,0.2);border-radius:10px;background:var(--bg2);color:var(--text2);font-family:inherit;font-weight:600;font-size:0.85rem;cursor:pointer;transition:all .3s}
.month-btn.active{background:linear-gradient(135deg,var(--accent),#a855f7);color:#fff;border-color:var(--accent);box-shadow:0 4px 20px var(--accent-glow)}
.month-btn:hover:not(.active){border-color:var(--accent);color:var(--white)}
.tariff-price-plus{font-size:2.4rem;font-weight:800;color:var(--white);margin:12px 0 4px}
.tariff-plus-period{font-size:0.85rem;color:var(--text2);margin-bottom:4px}

/* PAYMENT MODULE & ACCOUNT */
.payment-page{max-width:560px;margin:0 auto;width:100%}
.form-group{margin-bottom:24px}
.form-group label{display:block;font-weight:600;font-size:0.9rem;margin-bottom:8px;color:var(--white)}
.form-group input,.form-group select{width:100%;padding:14px 16px;background:var(--bg2);border:2px solid rgba(108,92,231,0.15);border-radius:12px;color:var(--white);font-family:inherit;font-size:0.95rem;transition:border-color .3s;outline:none}
.form-group input:focus,.form-group select:focus{border-color:var(--accent)}

.pay-methods{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.pay-method{padding:16px 8px;background:var(--bg2);border:2px solid rgba(108,92,231,0.15);border-radius:12px;text-align:center;cursor:pointer;transition:all .3s}
.pay-method.active{border-color:var(--accent);background:rgba(108,92,231,0.1)}
.pay-method:hover{border-color:var(--accent)}
.pay-method-icon{font-size:1.5rem;margin-bottom:6px}
.pay-method-label{font-size:0.8rem;color:var(--text2);font-weight:600}

.order-summary{background:var(--card);border:1px solid var(--card-border);border-radius:16px;padding:24px;margin-bottom:28px}
.order-summary h3{font-size:1rem;font-weight:700;color:var(--white);margin-bottom:16px}
.order-row{display:flex;justify-content:space-between;padding:8px 0;font-size:0.9rem;color:var(--text2)}
.order-row.total{border-top:1px solid rgba(255,255,255,0.1);margin-top:8px;padding-top:14px;font-weight:700;color:var(--white);font-size:1.05rem}
.order-row .discount{color:var(--green)}

.pay-btn{width:100%;padding:16px;border:none;border-radius:14px;font-family:inherit;font-weight:700;font-size:1.05rem;cursor:pointer;background:linear-gradient(135deg,var(--accent),#a855f7);color:#fff;box-shadow:0 8px 30px var(--accent-glow);transition:all .3s}
.pay-btn:hover{transform:translateY(-2px);box-shadow:0 12px 40px var(--accent-glow)}

/* PASSWORD TOGGLE */
.pw-wrap{position:relative}
.pw-wrap input{padding-right:44px}
.pw-toggle{position:absolute;right:14px;top:50%;transform:translateY(-50%);background:none;border:none;cursor:pointer;padding:4px;color:var(--text2);display:flex;align-items:center;justify-content:center}
.pw-toggle:hover{color:var(--white)}

.captcha-box{background:var(--bg2);border:2px solid rgba(108,92,231,0.15);border-radius:12px;padding:16px;margin-bottom:24px}
.captcha-label{font-size:0.82rem;color:var(--text2);margin-bottom:10px;text-align:center}
.captcha-row{display:flex;align-items:center;gap:10px}
.captcha-expr{font-size:1.1rem;font-weight:700;color:var(--white);white-space:nowrap}
.captcha-expr span{color:var(--accent);margin:0 4px}
.captcha-inp{flex:1;min-width:0;padding:10px 12px;background:var(--bg);border:2px solid rgba(108,92,231,0.15);border-radius:10px;color:var(--white);font-family:inherit;font-size:0.95rem;outline:none;transition:border-color .3s}
.captcha-inp:focus{border-color:var(--accent)}
.captcha-refresh{background:none;border:none;color:var(--text2);cursor:pointer;padding:4px;display:flex;align-items:center;transition:color .3s}
.captcha-refresh:hover{color:var(--white)}

/* POPUPS (AUTH) */
.auth-overlay{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(10,10,26,0.85);backdrop-filter:blur(16px);z-index:999;align-items:center;justify-content:center;padding:20px}
.auth-box{background:var(--card);border:2px solid var(--card-border);border-radius:24px;padding:36px;max-width:420px;width:100%;max-height:90vh;overflow-y:auto;box-shadow:0 0 40px rgba(108,92,231,0.15);position:relative}
.auth-box h3{font-size:1.4rem;font-weight:800;color:var(--white);margin-bottom:10px;text-align:center}
.auth-box p{font-size:0.88rem;color:var(--text2);text-align:center;margin-bottom:24px}
.auth-toggle{text-align:center;margin-top:20px;font-size:0.88rem;color:var(--text2)}
.auth-toggle span{color:var(--accent2);cursor:pointer;font-weight:600}
.close-auth{position:absolute;top:16px;right:20px;background:none;border:none;color:var(--text2);font-size:1.3rem;cursor:pointer}

footer{text-align:center;padding:24px;color:var(--text2);font-size:0.8rem;border-top:1px solid rgba(108,92,231,0.1);margin-top:auto}

#admin-users-body tr{border-bottom:1px solid rgba(255,255,255,0.05)}
#admin-users-body td{padding:12px 16px;font-size:0.85rem;color:var(--text2)}
#admin-users-body tr:hover{background:rgba(108,92,231,0.05)}
.admin-stat{background:var(--card);border:1px solid var(--card-border);border-radius:12px;padding:18px 28px;text-align:center;min-width:140px}
.admin-stat .num{font-size:1.8rem;font-weight:800;color:var(--white)}
.admin-stat .label{font-size:0.8rem;color:var(--text2);margin-top:4px}

.download-card{background:var(--card);border:2px solid var(--card-border);border-radius:16px;padding:28px 20px;display:flex;align-items:center;gap:16px;transition:all .3s;cursor:pointer}
.download-card:hover{border-color:var(--accent);transform:translateY(-3px)}

@media(max-width:600px){
  nav{padding:6px 10px 4px}
  .logo{font-size:0.95rem;margin-bottom:4px}
  .nav-links{gap:2px;padding:2px;flex-wrap:nowrap}
  .nav-links button{padding:5px 7px;font-size:0.65rem;white-space:nowrap}
  .page{padding:10px 12px 40px;padding-top:90px}
  .steps-bar{padding-top:90px}
  .step-dot{width:30px;height:30px;font-size:0.75rem}
  .step-line{width:36px}

  .hero{min-height:auto;padding:60px 0 30px}
  .hero h1{font-size:clamp(1.6rem,8vw,2.6rem)}
  .hero p{font-size:0.95rem;padding:0 8px}
  .hero-btn{padding:14px 36px;font-size:0.95rem}

  .features{grid-template-columns:1fr 1fr;gap:10px;max-width:100%}
  .feature-card{padding:16px 12px}
  .feature-card h3{font-size:0.85rem}
  .feature-card p{font-size:0.75rem;line-height:1.5}
  .feature-icon svg{width:36px;height:36px}

  .tariffs-grid{grid-template-columns:1fr;gap:14px}
  .tariff-card{padding:24px 20px}
  .tariff-name{font-size:1.05rem}
  .tariff-price-plus{font-size:1.8rem}
  .tariff-features li{font-size:0.82rem;padding:6px 0}

  .month-btn{padding:6px 12px;font-size:0.78rem}

  .download-grid{grid-template-columns:1fr 1fr !important;gap:12px !important}
  .download-card{padding:16px 12px;gap:10px}
  .download-card svg{width:32px;height:32px}

  #unauth-view{margin-top:30px;padding:0 8px}
  #unauth-view h2{font-size:1.4rem}
  #unauth-view p{font-size:0.88rem}
  #unauth-view button{font-size:0.88rem;padding:12px 16px}

  .payment-page{max-width:100%;padding:0 4px}
  .payment-page h2{font-size:1.3rem;margin-top:20px}

  .order-summary{padding:16px}
  #account-email-label{font-size:0.78rem;word-break:break-all}
  .order-row{font-size:0.85rem}

  .auth-box{padding:24px 16px;max-width:100%;border-radius:18px}
  .auth-box h3{font-size:1.2rem}
  .auth-box p{font-size:0.82rem}
  .close-auth{top:10px;right:14px}

  .captcha-row{flex-wrap:wrap}
  .captcha-inp{min-width:80px}

  #vpn-keys-container h3{font-size:1rem}
  #vpn-keys-container .order-summary{padding:14px}

  .admin-stat{min-width:auto;padding:12px 16px;flex:1}
  .admin-stat .num{font-size:1.3rem}
  #admin-users-body td{padding:8px 10px;font-size:0.75rem}
  table{font-size:0.8rem}

  footer{padding:16px 12px}

  #referral-section .order-summary{padding:16px}
  #referral-section input[type="text"]{font-size:0.85rem;padding:10px 12px}
  #referral-section button{font-size:0.8rem;padding:10px 12px}

  .auth-overlay{padding:12px}
  .auth-box{max-height:85vh}
  .pay-methods{grid-template-columns:1fr}

  .tariffs-page > div:first-child > div:last-child{flex-wrap:wrap;justify-content:center}
  .tariffs-page > div:first-child > div:last-child .month-btn{flex:1 0 auto;min-width:calc(50% - 8px)}
}
@media(min-width:768px){
  nav{flex-direction:row;padding:12px 40px;align-items:center;justify-content:space-between}
  .logo{margin-bottom:0;text-align:left}
  .nav-links{justify-content:center}
  .page{padding-top:80px}
  .steps-bar{padding-top:100px}
}