:root{
  --red:#b00020;
  --black:#0b0b0b;
  --dark:#151515;
  --charcoal:#242424;
  --gray:#555;
  --light:#f3f3f3;
  --line:#d6d6d6;
  --white:#fff;
  --ok:#16803c;
  --warn:#9a6a00;
  --bad:#9b111e;
}
*{box-sizing:border-box}
body{margin:0;background:#f2f2f2;color:#151515;font-family:Arial,Helvetica,sans-serif}
a{text-decoration:none;color:inherit}
.topbar{background:linear-gradient(90deg,#070707,#292929);color:#fff;border-bottom:4px solid var(--red)}
.nav{max-width:1620px;margin:auto;padding:14px 22px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand strong{display:block;font-size:23px;letter-spacing:.05em}
.brand span{font-size:12px;color:#cfcfcf}
.menu{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.menu-item{position:relative}
.menu>a,.menu-item>a{display:block;padding:9px 11px;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.08);border-radius:5px;font-size:12px;color:#fff}
.dropdown{display:none;position:absolute;right:0;top:38px;background:#fff;color:#111;border:1px solid #ccc;box-shadow:0 12px 28px rgba(0,0,0,.22);border-radius:7px;min-width:280px;z-index:20;overflow:hidden}
.menu-item:hover .dropdown{display:block}
.dropdown a{display:block;padding:10px 12px;border-bottom:1px solid #eee;font-size:12px}
.dropdown a:hover{background:#f4f4f4}
.hero{max-width:1620px;margin:auto;padding:58px 22px 68px;display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:center}
.hero h1{font-size:52px;line-height:1.02;margin:0 0 16px;max-width:980px}
.hero p{font-size:17px;line-height:1.55;color:#ddd;margin:0 0 22px;max-width:850px}
.actions{display:flex;gap:10px;flex-wrap:wrap}
.btn{display:inline-block;background:#fff;color:#111;border:0;border-radius:6px;padding:11px 14px;font-size:13px;font-weight:700}
.btn.red{background:var(--red);color:#fff}
.btn.dark{background:#222;color:#fff}
.panel{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);border-radius:10px;padding:18px;box-shadow:0 20px 45px rgba(0,0,0,.25)}
.wrap{max-width:1620px;margin:auto;padding:18px 22px}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:16px;box-shadow:0 2px 10px rgba(0,0,0,.06)}
.card h3{margin:0 0 8px;font-size:16px}
.card p{margin:0;color:#555;font-size:13px;line-height:1.45}
.section-title{font-size:23px;margin:10px 0 14px}
table{width:100%;border-collapse:collapse;background:#fff;font-size:13px}
th,td{padding:10px;border-bottom:1px solid #ddd;text-align:left;vertical-align:top}
th{background:#f7f7f7}
.badge{display:inline-block;padding:3px 8px;border-radius:999px;font-size:11px;font-weight:bold;background:#eee}
.badge.live,.badge.active,.badge.online{background:#e2f5e8;color:var(--ok)}
.badge.ready,.badge.standby,.badge.next{background:#fff0cc;color:var(--warn)}
.badge.secure,.badge.private{background:#e8e8e8;color:#222}
.code{background:#101010;color:#eee;padding:9px;border-radius:5px;font-family:Consolas,monospace;font-size:12px;word-break:break-all}
.footer{margin-top:30px;background:#101010;color:#aaa;text-align:center;padding:20px;font-size:12px}
.terminal-shell{background:#090909;color:#e8e8e8;min-height:100vh}
.terminal-header{background:#111;border-bottom:4px solid var(--red);padding:14px 20px;display:flex;justify-content:space-between;align-items:center}
.terminal-grid{display:grid;grid-template-columns:270px 1fr;min-height:calc(100vh - 70px)}
.terminal-side{background:#141414;border-right:1px solid #333;padding:14px}
.terminal-side a{display:block;color:#ddd;padding:10px 11px;border:1px solid #333;margin-bottom:8px;border-radius:5px;font-size:12px}
.terminal-main{padding:16px}
.metric-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-bottom:14px}
.metric{background:#181818;border:1px solid #333;border-radius:7px;padding:12px}
.metric strong{display:block;font-size:24px;color:#fff}
.metric span{font-size:12px;color:#aaa}
.scada{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.scada-card{background:#111;border:1px solid #333;border-radius:7px;padding:14px}
.scada-card h3{margin:0 0 10px;color:#fff;font-size:15px}
.scada-card table{background:#111;color:#ddd}
.scada-card th{background:#1d1d1d;color:#fff}
.scada-card td,.scada-card th{border-bottom:1px solid #333}
@media(max-width:1200px){.hero,.grid,.grid3,.terminal-grid,.metric-grid,.scada{grid-template-columns:1fr}.hero h1{font-size:36px}.dropdown{position:static;display:none}.menu-item:hover .dropdown{display:block}}