:root{
    --bg:#ffffff;
    --bg-dark:#0d1117;
    --bg-gray:#f6f8fa;
    --text:#1f2328;
    --text-muted:#656d76;
    --border:#d8dee4;
    --primary:#ff6b1a;
    --primary-dark:#e5560a;
    --accent:#22c55e;
    --radius:14px;
    --shadow:0 4px 24px rgba(0,0,0,.08);
    --shadow-lg:0 20px 60px rgba(0,0,0,.15);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    font-family:'Inter',-apple-system,sans-serif;
    color:var(--text);
    background:var(--bg);
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* BUTTONS */
.btn{
    display:inline-flex;align-items:center;justify-content:center;
    gap:8px;padding:12px 24px;border-radius:10px;
    font-weight:600;font-size:15px;cursor:pointer;border:none;
    transition:.2s;font-family:inherit;
}
.btn--primary{background:var(--primary);color:#fff}
.btn--primary:hover{background:var(--primary-dark);transform:translateY(-2px)}
.btn--ghost{background:transparent;color:var(--text);border:1.5px solid var(--border)}
.btn--ghost:hover{border-color:var(--primary);color:var(--primary)}
.btn--lg{padding:16px 32px;font-size:16px}
.btn--block{width:100%}

/* HEADER */
.header{
    position:sticky;top:0;z-index:100;
    background:rgba(255,255,255,.9);
    backdrop-filter:blur(12px);
    border-bottom:1px solid var(--border);
}
.header__inner{display:flex;align-items:center;gap:32px;height:72px}
.logo{display:flex;align-items:center;gap:8px;font-size:20px;font-weight:600}
.logo__icon{
    background:var(--primary);color:#fff;padding:6px 10px;border-radius:8px;
    font-family:monospace;font-weight:700;font-size:14px;
}
.logo__text strong{color:var(--primary)}
.nav{display:flex;gap:28px;margin-left:auto}
.nav a{font-size:15px;font-weight:500;color:var(--text-muted);transition:.2s}
.nav a:hover{color:var(--primary)}
.burger{display:none;background:none;border:none;flex-direction:column;gap:5px;cursor:pointer}
.burger span{width:24px;height:2px;background:var(--text);border-radius:2px;transition:.3s}

/* HERO */
.hero{
    background:linear-gradient(135deg,#0d1117 0%,#1a2332 100%);
    color:#fff;padding:80px 0 100px;position:relative;overflow:hidden;
}
.hero::before{
    content:'';position:absolute;top:-50%;right:-20%;width:600px;height:600px;
    background:radial-gradient(circle,rgba(255,107,26,.15),transparent 70%);
}
.hero__inner{
    display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center;
    position:relative;z-index:1;
}
.hero__badge{
    display:inline-block;padding:8px 16px;background:rgba(255,107,26,.15);
    border:1px solid rgba(255,107,26,.3);border-radius:100px;
    font-size:14px;font-weight:600;color:#ffb37a;margin-bottom:24px;
}
.hero h1{font-size:clamp(32px,4.5vw,54px);line-height:1.15;font-weight:800;letter-spacing:-.02em;margin-bottom:20px}
.hero__lead{font-size:18px;color:#a0a8b3;margin-bottom:32px;max-width:560px}
.hero__actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:48px}
.hero__actions .btn--ghost{color:#fff;border-color:rgba(255,255,255,.25)}
.hero__actions .btn--ghost:hover{border-color:var(--primary);color:var(--primary)}
.hero__stats{display:flex;gap:40px;flex-wrap:wrap}
.hero__stats div{display:flex;flex-direction:column}
.hero__stats strong{font-size:28px;font-weight:800;color:var(--primary)}
.hero__stats span{font-size:14px;color:#a0a8b3}

/* TERMINAL */
.terminal{background:#161b22;border:1px solid #30363d;border-radius:12px;overflow:hidden;box-shadow:var(--shadow-lg)}
.terminal__bar{display:flex;gap:6px;padding:12px 16px;background:#0d1117;border-bottom:1px solid #30363d}
.terminal__bar span{width:12px;height:12px;border-radius:50%;background:#30363d}
.terminal__bar span:nth-child(1){background:#ff5f56}
.terminal__bar span:nth-child(2){background:#ffbd2e}
.terminal__bar span:nth-child(3){background:#27c93f}
.terminal__body{
    padding:20px;font-family:'Menlo',monospace;font-size:13px;
    line-height:1.8;color:#7dd3fc;white-space:pre-wrap;overflow-x:auto;
}
.terminal__body .ok{color:#4ade80;font-weight:700}

/* SECTIONS */
.section{padding:90px 0}
.section--dark{background:var(--bg-dark);color:#fff}
.section--gray{background:var(--bg-gray)}
.section__head{text-align:center;max-width:680px;margin:0 auto 56px}
.section__tag{
    display:inline-block;padding:6px 14px;background:rgba(255,107,26,.1);
    color:var(--primary);border-radius:100px;font-size:13px;
    font-weight:600;text-transform:uppercase;letter-spacing:.06em;margin-bottom:16px;
}
.section__head h2{font-size:clamp(28px,3.5vw,40px);font-weight:800;letter-spacing:-.02em;margin-bottom:16px}
.section__head p{color:var(--text-muted);font-size:17px}
.section--dark .section__head p{color:#a0a8b3}

/* GRID */
.grid{display:grid;gap:24px}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}

/* CARDS */
.card{
    background:#fff;border:1px solid var(--border);border-radius:var(--radius);
    padding:32px;transition:.3s;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--primary)}
.card__icon{font-size:36px;margin-bottom:16px}
.card h3{font-size:19px;font-weight:700;margin-bottom:10px}
.card p{color:var(--text-muted);font-size:15px}

/* VERSION */
.version-card{
    background:#161b22;border:1px solid #30363d;border-radius:var(--radius);
    padding:28px;transition:.3s;
}
.version-card:hover{border-color:var(--primary);transform:translateY(-4px)}
.version-card--active{border-color:var(--primary);background:#1c1410}
.version-card__num{font-size:36px;font-weight:800;color:var(--primary);margin-bottom:8px;font-family:monospace}
.version-card h3{font-size:18px;margin-bottom:10px}
.version-card p{color:#a0a8b3;font-size:14px;margin-bottom:16px}
.badge{display:inline-block;padding:4px 10px;border-radius:100px;font-size:12px;font-weight:600;background:#21262d;color:#a0a8b3}
.badge--ok{background:rgba(34,197,94,.15);color:#4ade80}
.badge--warn{background:rgba(255,107,26,.15);color:#ffb37a}
.badge--new{background:rgba(59,130,246,.15);color:#93c5fd}

/* THREAT */
.threat{
    background:#fff;border:1px solid var(--border);border-left:4px solid var(--primary);
    border-radius:var(--radius);padding:24px;
}
.threat__head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.threat__sev{padding:4px 10px;border-radius:6px;font-size:12px;font-weight:700;text-transform:uppercase}
.threat__sev--crit{background:rgba(239,68,68,.15);color:#dc2626}
.threat__sev--high{background:rgba(249,115,22,.15);color:#ea580c}
.threat__sev--med{background:rgba(234,179,8,.15);color:#ca8a04}
.threat__cve{font-family:monospace;font-size:13px;color:var(--text-muted)}
.threat h4{font-size:16px;margin-bottom:8px}
.threat p{color:var(--text-muted);font-size:14px}
.security-note{
    margin-top:32px;padding:20px 24px;background:rgba(255,107,26,.08);
    border-radius:var(--radius);border-left:4px solid var(--primary);font-size:15px;
}

/* STEPS */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step{
    background:#fff;border:1px solid var(--border);border-radius:var(--radius);
    padding:28px;position:relative;
}
.step__num{
    font-size:40px;font-weight:800;color:rgba(255,107,26,.2);
    font-family:monospace;line-height:1;margin-bottom:16px;
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{color:var(--text-muted);font-size:14px}

/* CONTACTS */
.contacts{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start}
.contacts__info .section__tag{margin-bottom:16px}
.contacts__info h2{font-size:clamp(28px,3.5vw,40px);font-weight:800;margin-bottom:16px}
.contacts__info > p{color:#a0a8b3;margin-bottom:32px;font-size:16px}
.contacts__list{list-style:none;display:flex;flex-direction:column;gap:16px}
.contacts__list li{color:#a0a8b3;font-size:15px}
.contacts__list strong{color:#fff;font-weight:600;display:inline-block;min-width:100px}
.contacts__list a{color:var(--primary);font-weight:500}
.contacts__list a:hover{text-decoration:underline}

/* FORM */
.form{background:#161b22;border:1px solid #30363d;border-radius:var(--radius);padding:32px;display:flex;flex-direction:column;gap:14px}
.form input,.form select,.form textarea{
    width:100%;padding:14px 16px;background:#0d1117;border:1px solid #30363d;
    border-radius:10px;color:#fff;font-size:15px;font-family:inherit;
    transition:.2s;outline:none;
}
.form input:focus,.form select:focus,.form textarea:focus{
    border-color:var(--primary);box-shadow:0 0 0 3px rgba(255,107,26,.15);
}
.form textarea{resize:vertical;min-height:100px}
.form select{cursor:pointer;appearance:none;
    background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='%23a0a8b3'><path d='M7 10l5 5 5-5z'/></svg>");
    background-repeat:no-repeat;background-position:right 16px center;
}
.checkbox{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:#a0a8b3;cursor:pointer}
.checkbox input{width:auto;margin-top:3px;accent-color:var(--primary)}
.checkbox a{color:var(--primary)}
.form__msg{font-size:14px;text-align:center;min-height:20px}
.form__msg--ok{color:#4ade80}
.form__msg--err{color:#f87171}

/* FOOTER */
.footer{background:#0d1117;color:#a0a8b3;padding:60px 0 0}
.footer__inner{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;padding-bottom:40px}
.footer__col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer__col p,.footer__col a{font-size:14px;display:block;margin-bottom:8px}
.footer__col a:hover{color:var(--primary)}
.footer__col .logo{margin-bottom:16px}
.footer__bottom{border-top:1px solid #21262d;padding:24px 0;font-size:13px;text-align:center}

/* RESPONSIVE */
@media(max-width:992px){
    .hero__inner{grid-template-columns:1fr}
    .hero__card{max-width:560px}
    .grid--3,.grid--4{grid-template-columns:repeat(2,1fr)}
    .contacts{grid-template-columns:1fr;gap:40px}
    .footer__inner{grid-template-columns:1fr 1fr}
    .steps{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
    .nav{
        display:none;position:absolute;top:72px;left:0;right:0;
        background:#fff;flex-direction:column;padding:24px;gap:16px;
        border-bottom:1px solid var(--border);box-shadow:var(--shadow);
    }
    .nav.open{display:flex}
    .burger{display:flex}
    .header__cta{display:none}
    .grid--2,.grid--3,.grid--4,.steps{grid-template-columns:1fr}
    .hero{padding:60px 0 70px}
    .hero__stats{gap:24px}
    .hero__stats strong{font-size:22px}
    .section{padding:60px 0}
    .footer__inner{grid-template-columns:1fr;gap:32px}
}