:root{
  --bg:#f4f6f8;--card:#fff;--text:#172033;--muted:#64748b;--border:#e2e8f0;
  --primary:#2563eb;--primary2:#1d4ed8;--danger:#dc2626;--success:#16a34a;
  --warning:#d97706;--sidebar:#0b0b0b
}
*{box-sizing:border-box}
body{margin:0;font-family:Inter,"Segoe UI",Arial,sans-serif;background:var(--bg);color:var(--text);font-size:14px}
a{text-decoration:none;color:inherit}
.shell{display:flex;min-height:100vh}
.sidebar{width:250px;background:var(--sidebar);color:#fff;padding:24px 18px;position:fixed;inset:0 auto 0 0}
.brand{font-size:21px;font-weight:800;letter-spacing:.3px;margin-bottom:8px}
.version{font-size:12px;color:#94a3b8;margin-bottom:28px}
.nav a{display:block;padding:12px 13px;border-radius:8px;margin:5px 0;color:#e5e7eb;font-weight:600}
.nav a:hover{background:#1f2937;color:#fff}
.content{margin-left:250px;flex:1;padding:34px;max-width:1500px}
.page-title{font-size:26px;font-weight:800;margin:0 0 5px}
.page-subtitle{color:var(--muted);margin:0 0 24px}
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:22px;box-shadow:0 1px 2px rgba(0,0,0,.03);margin-bottom:18px}
.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}
.col-6{grid-column:span 6}.col-4{grid-column:span 4}.col-12{grid-column:span 12}
label{display:block;font-size:13px;font-weight:700;margin:0 0 7px;color:#334155}
input,select{width:100%;padding:11px 12px;border:1px solid #cbd5e1;border-radius:8px;background:#fff;font:inherit}
input:focus,select:focus{outline:2px solid #bfdbfe;border-color:#60a5fa}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:0;border-radius:8px;padding:10px 15px;font-weight:700;cursor:pointer}
.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary2)}
.btn-secondary{background:#fff;border:1px solid #cbd5e1;color:#334155}
.btn-danger{background:var(--danger);color:#fff}
.btn-success{background:var(--success);color:#fff}
.actions{display:flex;gap:9px;flex-wrap:wrap}
.table{width:100%;border-collapse:collapse}.table th,.table td{padding:12px;border-bottom:1px solid var(--border);text-align:left}
.table th{font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:#64748b;background:#f8fafc}
.table tr:hover td{background:#fafcff}
.badge{display:inline-block;padding:5px 9px;border-radius:999px;font-size:12px;font-weight:800}
.badge-ok{background:#dcfce7;color:#166534}.badge-warn{background:#fef3c7;color:#92400e}.badge-off{background:#e5e7eb;color:#475569}
.alert{padding:12px 14px;border-radius:8px;margin-bottom:16px}
.alert-error{background:#fee2e2;color:#991b1b}.alert-ok{background:#dcfce7;color:#166534}
.app-card{display:flex;flex-direction:column;min-height:180px}
.app-card h3{margin:0 0 8px;font-size:18px}.app-card p{color:var(--muted);flex:1}
.login-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:linear-gradient(135deg,#0b0b0b,#1e293b)}
.login-card{width:min(430px,100%);background:#fff;padding:32px;border-radius:16px;box-shadow:0 24px 80px rgba(0,0,0,.25)}
.login-logo{font-size:27px;font-weight:900;margin-bottom:6px}
.login-muted{color:var(--muted);margin-bottom:24px}
.login-card .field{margin-bottom:15px}
.right{margin-left:auto}
.topbar{display:flex;align-items:center;gap:12px;margin-bottom:26px}
@media(max-width:900px){
  .sidebar{position:static;width:100%;min-height:auto}.shell{display:block}.content{margin-left:0;padding:20px}
  .col-6,.col-4{grid-column:span 12}
}


/* ===== Site público Gtech ===== */
.public-page{background:#fff;color:#0f172a;min-height:100vh}
.public-header{
  height:76px;display:flex;align-items:center;justify-content:space-between;
  padding:0 clamp(24px,6vw,92px);border-bottom:1px solid #e5e7eb;
  background:rgba(255,255,255,.96);position:sticky;top:0;z-index:30;
  backdrop-filter:blur(10px)
}
.public-brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:900;letter-spacing:.06em}
.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:9px;background:#0b0b0b;color:#fff;font-size:17px}
.public-nav{display:flex;align-items:center;gap:28px;color:#475569;font-weight:600}
.public-nav>a:not(.btn):hover{color:#0f172a}
.login-top{padding:9px 16px!important}
.hero{
  min-height:640px;display:grid;grid-template-columns:1.05fr .95fr;gap:64px;
  align-items:center;padding:72px clamp(24px,6vw,92px);
  background:
    radial-gradient(circle at 78% 25%,rgba(37,99,235,.12),transparent 30%),
    linear-gradient(180deg,#ffffff 0%,#f8fafc 100%)
}
.hero-copy{max-width:720px}
.eyebrow{font-size:12px;font-weight:900;letter-spacing:.15em;text-transform:uppercase;color:#2563eb;margin-bottom:16px}
.hero h1{font-size:clamp(42px,5vw,72px);line-height:1.03;letter-spacing:-.045em;margin:0 0 24px;max-width:780px}
.hero p{font-size:19px;line-height:1.7;color:#64748b;max-width:670px;margin:0 0 30px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn-lg{padding:13px 19px;font-size:15px}
.hero-note{font-size:13px;color:#94a3b8;margin-top:18px}
.hero-panel{display:flex;justify-content:center}
.mock-window{width:min(560px,100%);background:#0b1220;border:1px solid #1e293b;border-radius:18px;box-shadow:0 30px 70px rgba(15,23,42,.25);overflow:hidden;transform:perspective(1200px) rotateY(-5deg) rotateX(2deg)}
.mock-top{height:38px;border-bottom:1px solid #263244;display:flex;align-items:center;gap:7px;padding:0 14px}
.mock-top span{width:8px;height:8px;border-radius:50%;background:#64748b}
.mock-body{padding:28px}
.mock-logo{font-size:13px;letter-spacing:.15em;color:#94a3b8;font-weight:800}
.mock-title{font-size:28px;font-weight:800;color:#fff;margin:12px 0 24px}
.mock-card{display:grid;grid-template-columns:44px 1fr auto;align-items:center;gap:13px;background:#fff;border-radius:12px;padding:16px;margin-bottom:12px}
.mock-card.muted{opacity:.72}
.mock-card strong{display:block}.mock-card small{display:block;color:#64748b;margin-top:3px}
.mock-icon{width:42px;height:42px;border-radius:10px;display:grid;place-items:center;background:#eff6ff;color:#2563eb;font-weight:900}
.section{padding:90px clamp(24px,6vw,92px)}
.section-head{max-width:760px;margin-bottom:42px}
.section-head h2{font-size:clamp(30px,3.3vw,48px);letter-spacing:-.03em;margin:0 0 14px}
.section-head p{font-size:17px;color:#64748b;line-height:1.65}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feature-card{border:1px solid #e2e8f0;border-radius:16px;padding:26px;background:#fff}
.feature-card h3{font-size:19px;margin:17px 0 8px}
.feature-card p{color:#64748b;line-height:1.65;margin:0}
.feature-icon{width:44px;height:44px;border-radius:11px;display:grid;place-items:center;background:#0f172a;color:#fff;font-weight:900}
.dark-section{background:#0b1220;color:#fff}
.section-head.light p{color:#94a3b8}.section-head.light .eyebrow{color:#60a5fa}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.metric{border:1px solid #263244;border-radius:14px;padding:24px;background:#111827}
.metric strong{display:block;font-size:31px;margin-bottom:8px}.metric span{color:#94a3b8}
.security-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;max-width:980px}
.security-list>div{display:flex;gap:16px;border:1px solid #e2e8f0;border-radius:14px;padding:20px;background:#fff}
.security-list b{font-size:12px;color:#2563eb}.security-list span{color:#475569}
.public-footer{display:flex;justify-content:space-between;gap:20px;padding:34px clamp(24px,6vw,92px);border-top:1px solid #e2e8f0;color:#64748b}
.public-footer strong{color:#0f172a;font-size:18px}.public-footer span{font-size:13px}
@media(max-width:900px){
  .public-nav>a:not(.btn){display:none}
  .hero{grid-template-columns:1fr;min-height:auto;padding-top:54px}
  .hero-panel{margin-top:8px}
  .mock-window{transform:none}
  .feature-grid,.metric-grid,.security-list{grid-template-columns:1fr}
  .public-footer{flex-direction:column}
}