*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#00d4ff;--primary-dark:#00b3d4;--secondary:#00ff87;--gradient:linear-gradient(135deg,#00d4ff 0%,#00ff87 100%);--success:#00ff87;--warning:#ffcc00;--error:#ff3860;--bg:#05070c;--bg-alt:#0d1220;--card:rgba(13,18,32,.85);--border:rgba(0,212,255,.1);--text:#e0e6f0;--text-sec:#a0b0c8;--text-muted:#6a7a94;--nav-bg:rgba(5,7,12,0.95);--shadow:0 4px 24px rgba(0,0,0,0.3);--shadow-hover:0 12px 40px rgba(0,212,255,0.12)}
[data-theme="light"]{--bg:#f5f7fa;--bg-alt:#ffffff;--card:#ffffff;--border:rgba(0,0,0,0.08);--text:#1a1a2e;--text-sec:#4a4a6a;--text-muted:#7a7a9a;--nav-bg:rgba(255,255,255,0.95);--shadow:0 4px 24px rgba(0,0,0,0.06);--shadow-hover:0 12px 40px rgba(0,212,255,0.12)}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;transition:background .3s,color .3s}
::selection{background:var(--primary);color:#000}

/* Nav */
nav{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;max-width:1248px;margin:0 auto;position:sticky;top:0;z-index:100;background:var(--nav-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.logo{font-size:20px;font-weight:800;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-decoration:none}
.nav-links{display:flex;gap:16px;align-items:center}
.nav-links a{color:var(--text-sec);text-decoration:none;font-size:13px;font-weight:500;transition:color .2s}
.nav-links a:hover{color:var(--primary)}
.lang-switch{background:var(--card);border:1px solid var(--border);color:var(--text);padding:7px 11px;border-radius:10px;cursor:pointer;font-size:12px;font-weight:500;transition:all .2s;display:flex;align-items:center;gap:4px;margin-left:4px}
.lang-switch:hover{border-color:var(--primary)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 28px;border-radius:10px;font-weight:600;font-size:14px;text-decoration:none;cursor:pointer;border:none;transition:all .25s;white-space:nowrap}
.btn-primary{background:var(--gradient);color:#000}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,212,255,0.3)}
.btn-outline{background:transparent;color:var(--text);border:1.5px solid var(--border)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary)}
.btn-lg{padding:14px 36px;font-size:16px}

/* Hero */
.hero{text-align:center;padding:60px 24px 40px;max-width:720px;margin:0 auto}
.hero .tag{display:inline-block;background:rgba(0,212,255,.12);color:var(--primary);font-size:11px;font-weight:700;padding:4px 12px;border-radius:20px;margin-bottom:16px;text-transform:uppercase;letter-spacing:1px}
.hero h1{font-size:38px;font-weight:800;margin:0 0 12px;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1.2}
.hero p{font-size:17px;color:var(--text-sec);line-height:1.6;margin-bottom:24px}
.hero .actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}

/* Sections */
.section{padding:48px 24px;max-width:1080px;margin:0 auto}
.section h2{font-size:28px;font-weight:700;margin-bottom:8px;text-align:center}
.section h2 .hl{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.section .sub{text-align:center;font-size:14px;color:var(--text-sec);margin-bottom:32px}

/* Grid */
.grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:24px;transition:all .25s}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.card .icon{font-size:28px;margin-bottom:10px}
.card h3{font-size:16px;font-weight:700;margin-bottom:6px}
.card p{font-size:13px;color:var(--text-sec);line-height:1.5}

/* Steps */
.steps{display:grid;grid-template-columns:1fr 1fr;gap:20px;max-width:800px;margin:0 auto}
.step{display:flex;gap:14px;align-items:start;background:var(--card);border:1px solid var(--border);border-radius:14px;padding:20px}
.step .num{width:36px;height:36px;border-radius:50%;background:var(--gradient);color:#000;font-weight:800;font-size:15px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.step h4{font-size:14px;font-weight:700;margin-bottom:4px}
.step p{font-size:12px;color:var(--text-sec);line-height:1.4}

/* Pricing */
.pricing-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px;max-width:900px;margin:0 auto}
.plan{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:24px;text-align:center;transition:all .25s;position:relative}
.plan.featured{border-color:var(--primary);box-shadow:0 0 20px rgba(0,212,255,.1)}
.plan .popular{background:var(--gradient);color:#000;font-size:10px;font-weight:700;padding:3px 10px;border-radius:12px;display:inline-block;margin-bottom:10px;text-transform:uppercase;letter-spacing:.5px}
.plan h3{font-size:16px;font-weight:700;margin-bottom:4px}
.plan .price{font-size:32px;font-weight:800;margin:8px 0}
.plan .price span{font-size:14px;font-weight:400;color:var(--text-muted)}
.plan ul{list-style:none;text-align:left;margin:16px 0}
.plan ul li{padding:5px 0;font-size:13px;color:var(--text-sec)}
.plan ul li::before{content:'✅ '}
.plan .btn{width:100%}

/* Call Form */
.call-section{max-width:500px;margin:0 auto;background:var(--card);border:1px solid var(--border);border-radius:16px;padding:28px}
.call-section h3{font-size:18px;font-weight:700;margin-bottom:4px;text-align:center}
.call-section .sub{text-align:center;font-size:13px;color:var(--text-sec);margin-bottom:20px}
.form-group{margin-bottom:12px}
.form-group label{font-size:11px;color:var(--text-sec);text-transform:uppercase;letter-spacing:.5px;font-weight:600;margin-bottom:4px;display:block}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:11px;border:1px solid var(--border);border-radius:10px;background:var(--bg-alt);color:var(--text);font-size:14px;outline:none;transition:.2s;font-family:inherit}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--primary)}
.form-group textarea{resize:vertical;min-height:50px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.hidden{display:none!important}
.alert{background:rgba(0,255,135,.1);border:1px solid rgba(0,255,135,.2);border-radius:8px;padding:10px;font-size:12px;color:var(--success);margin-bottom:12px;display:none}
.alert.error{background:rgba(255,56,96,.1);border-color:rgba(255,56,96,.2);color:var(--error)}
.alert.show{display:block}

/* Footer */
footer{text-align:center;padding:32px 24px;color:var(--text-muted);font-size:12px;border-top:1px solid var(--border);margin-top:40px}
footer a{color:var(--primary);text-decoration:none}

/* Success */
.success-view{text-align:center;padding:20px}
.success-view .check{font-size:48px;margin-bottom:10px}
.success-view h2{font-size:20px;font-weight:700;margin-bottom:6px}
.success-view p{font-size:13px;color:var(--text-sec);line-height:1.5}
.success-view .small{font-size:11px;color:var(--text-muted)}

@media(max-width:768px){
  .grid{grid-template-columns:1fr}
  .grid-4{grid-template-columns:1fr 1fr}
  .pricing-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .hero h1{font-size:28px}
  .hero p{font-size:15px}
  .nav-links{display:none}
}