/* ============================================================
   Sideranix Vela — Tema oscuro elegante
   ============================================================ */
:root{
  --bg:#0b0d12;
  --bg-2:#11141b;
  --panel:#161a22;
  --panel-2:#1c2230;
  --border:#252b39;
  --text:#e7e9ee;
  --text-dim:#9aa3b2;
  --muted:#6b7383;
  --accent:#6c8cff;
  --accent-2:#8e74ff;
  --cyan:#3fd2ff;
  --green:#3ddc97;
  --red:#ff6b6b;
  --orange:#ffb86b;
  --shadow:0 6px 24px rgba(0,0,0,.45);
  --radius:12px;
  --radius-sm:8px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
a:hover{color:var(--accent-2)}
h1,h2,h3{font-weight:600;letter-spacing:-.01em;margin:0}
h1{font-size:22px}h2{font-size:18px}h3{font-size:15px}
small{color:var(--text-dim)}
hr{border:none;border-top:1px solid var(--border);margin:18px 0}

/* Layout */
.sidebar{
  position:fixed;left:0;top:0;bottom:0;width:230px;
  background:linear-gradient(180deg,#0e1118,#0a0c12);
  border-right:1px solid var(--border);
  display:flex;flex-direction:column;padding:18px 14px;
}
.brand{display:flex;align-items:baseline;gap:8px;padding:6px 10px 18px;border-bottom:1px solid var(--border);margin-bottom:14px}
.brand-dot{width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--cyan));display:inline-block}
.brand-name{font-weight:700;font-size:16px}
.brand-sub{color:var(--muted);font-size:11px}
.nav{display:flex;flex-direction:column;gap:2px}
.nav-item{
  padding:9px 12px;border-radius:var(--radius-sm);color:var(--text-dim);font-size:14px;
}
.nav-item:hover{background:var(--panel);color:var(--text)}
.nav-item.active{background:var(--panel-2);color:#fff;box-shadow:inset 2px 0 0 var(--accent)}
.sidebar-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--border)}
.user-mini{display:flex;align-items:center;justify-content:space-between;font-size:13px;padding:0 8px}
.user-out{color:var(--muted);font-size:12px}
.user-out:hover{color:var(--red)}

.main{margin-left:230px;min-height:100vh}
.topbar{padding:22px 28px 8px;border-bottom:1px solid var(--border);background:var(--bg-2)}
.content{padding:24px 28px}

/* Cards / grids */
.grid{display:grid;gap:16px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media (max-width:1100px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:680px){.grid-3,.grid-4{grid-template-columns:1fr};.sidebar{position:relative;width:auto;height:auto}.main{margin-left:0}}

.card{
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);
  padding:18px;box-shadow:var(--shadow);
}
.card h2{margin-bottom:10px}
.card .label{color:var(--text-dim);font-size:12px;text-transform:uppercase;letter-spacing:.05em}
.card .big{font-size:30px;font-weight:700;margin-top:6px}

.kv{display:grid;grid-template-columns:160px 1fr;gap:8px 14px;font-size:14px}
.kv .k{color:var(--text-dim)}

/* Badges */
.badge{display:inline-block;padding:3px 9px;border-radius:999px;font-size:11px;font-weight:600;letter-spacing:.04em}
.badge-green{background:rgba(61,220,151,.15);color:var(--green)}
.badge-red{background:rgba(255,107,107,.15);color:var(--red)}
.badge-orange{background:rgba(255,184,107,.15);color:var(--orange)}
.badge-cyan{background:rgba(63,210,255,.15);color:var(--cyan)}
.badge-muted{background:rgba(155,163,178,.12);color:var(--text-dim)}

/* Tablas */
table.t{width:100%;border-collapse:collapse;font-size:14px;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
table.t th, table.t td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--border)}
table.t th{background:var(--panel-2);color:var(--text-dim);font-weight:500;font-size:12px;text-transform:uppercase;letter-spacing:.04em}
table.t tr:last-child td{border-bottom:none}
table.t tr:hover td{background:rgba(255,255,255,.02)}

/* Forms */
input,select,textarea,button{font-family:inherit;font-size:14px}
.input,select.input,textarea.input{
  width:100%;padding:10px 12px;background:var(--bg-2);border:1px solid var(--border);
  border-radius:var(--radius-sm);color:var(--text);outline:none;
}
.input:focus{border-color:var(--accent)}
textarea.input{min-height:90px;resize:vertical}
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:var(--radius-sm);
  background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;border:none;font-weight:600;cursor:pointer
}
.btn:hover{filter:brightness(1.1)}
.btn-ghost{background:transparent;border:1px solid var(--border);color:var(--text)}
.btn-ghost:hover{background:var(--panel-2)}
.btn-red{background:linear-gradient(135deg,#ff6b6b,#ff8b6b)}

.field{margin-bottom:14px}
.field label{display:block;font-size:12px;color:var(--text-dim);margin-bottom:6px;text-transform:uppercase;letter-spacing:.04em}

/* Login */
.login-wrap{display:flex;align-items:center;justify-content:center;min-height:100vh;background:radial-gradient(ellipse at top,#1a1f2e,#0a0c12)}
.login-card{width:380px;background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:32px;box-shadow:var(--shadow)}
.login-card h1{font-size:22px;margin-bottom:6px}
.login-card .sub{color:var(--text-dim);font-size:13px;margin-bottom:22px}
.alert{background:rgba(255,107,107,.12);color:var(--red);padding:10px 12px;border-radius:8px;font-size:13px;margin-bottom:12px}
.alert-ok{background:rgba(61,220,151,.12);color:var(--green)}

/* Misc */
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.spacer{flex:1}
.muted{color:var(--text-dim)}
.mono{font-family:'JetBrains Mono','Fira Code',ui-monospace,Menlo,monospace;font-size:12px}
.empty{padding:40px;text-align:center;color:var(--text-dim);border:1px dashed var(--border);border-radius:var(--radius)}