:root{
  --bg:#0f172a; /* slate-900 */
  --card:#0b1226; /* dark panel */
  --muted:#94a3b8; /* slate-400 */
  --text:#e2e8f0; /* slate-200 */
  --primary:#4f46e5; /* indigo-600 */
  --primary-600:#4338ca;
  --accent:#22c55e; /* green-500 */
  --danger:#ef4444; /* red-500 */
  --border:#1f2a44; /* dark border */
  --badge-day:#2a9d8f; /* keep alignment with earlier */
  --badge-night:#0ea5e9; /* sky-500 */
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:linear-gradient(180deg,#0a0f22, #0f172a 35%);
  color:var(--text);
  font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}

.container{
  max-width:1100px;
  margin-inline:auto;
  padding:24px 16px;
}

.navbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:12px 16px;
  border:1px solid var(--border);
  border-radius:12px;
  background:rgba(255,255,255,0.03);
  backdrop-filter:blur(6px);
  margin-bottom:16px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:700}
.brand .dot{width:10px;height:10px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent)}
.nav-actions a,.nav-actions button{margin-left:10px}

.grid{
  display:grid;
  gap:16px;
}
@media(min-width:900px){
  .grid-2{grid-template-columns:1fr 1fr}
}

.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:14px;
  padding:18px;
  box-shadow:0 8px 24px rgba(0,0,0,0.35);
}
.card h2,.card h3{margin:0 0 12px}
.muted{color:var(--muted)}

.form-row{margin:10px 0;display:flex;flex-direction:column;gap:6px}
label{font-size:14px;color:var(--muted)}
input[type="text"],input[type="password"],input[type="email"],input[type="date"],select{
  background:#0a1020;
  color:var(--text);
  border:1px solid var(--border);
  padding:10px 12px;
  border-radius:10px;
  outline:none;
}
input:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(79,70,229,0.25)}

.btn{display:inline-block;border:0;border-radius:10px;padding:10px 14px;cursor:pointer;font-weight:600}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-600)}
.btn-secondary{background:transparent;color:var(--text);border:1px solid var(--border)}
.btn-danger{background:transparent;color:#fecaca;border:1px solid rgba(239,68,68,0.6)}
.btn-danger:hover{background:rgba(239,68,68,0.08)}

.error{color:#fecaca;background:rgba(239,68,68,0.12);border:1px solid rgba(239,68,68,0.3);padding:8px 10px;border-radius:10px;margin:8px 0}

.calendar{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  overflow:hidden;
  border-radius:12px;
  border:1px solid var(--border);
}
.calendar th{
  text-align:left;
  padding:10px;
  background:rgba(255,255,255,0.04);
  color:var(--muted);
  font-weight:600;
}
.calendar td{
  vertical-align:top;
  height:120px;
  padding:10px;
  border-top:1px solid var(--border);
  border-right:1px solid var(--border);
}
.calendar tr td:last-child{border-right:0}
.day-number{font-weight:700}
.weekday{color:var(--muted);font-size:12px}
.badge{display:inline-block;margin-top:8px;padding:4px 8px;border-radius:999px;font-size:12px;color:#fff}
.badge.dayshift{background:var(--badge-day)}
.badge.nightshift{background:var(--badge-night)}
.today{outline:2px solid var(--primary);outline-offset:2px;border-radius:8px}

.footer-space{height:8px}