:root{
  --bg:#F3F5FC;
  --panel:#FFFFFF;
  --ink:#101828;
  --ink-soft:#5B6472;
  --border:#E1E6F5;
  --brand:#2451F0;
  --brand-soft:#E8EEFE;
  --accent:#F59E0B;
  --danger:#DC2626;
  --danger-soft:#FDEDEC;
  --radius:10px;
}
*{box-sizing:border-box;}
body{
  margin:0;
  font-family:'Segoe UI', system-ui, -apple-system, sans-serif;
  background:var(--bg);
  color:var(--ink);
}
a{color:var(--brand); text-decoration:none;}
a:hover{text-decoration:underline;}

.layout{ display:flex; min-height:100vh; }

.sidebar{
  width:220px;
  background:#0B1B3F;
  color:#DCE4FA;
  padding:20px 0;
  flex-shrink:0;
}
.sidebar .brand{
  font-size:17px;
  font-weight:700;
  padding:0 20px 18px;
  border-bottom:1px solid rgba(255,255,255,0.08);
  margin-bottom:12px;
}
.sidebar .brand small{
  display:block;
  font-weight:400;
  font-size:11px;
  color:#8FA3D6;
  margin-top:2px;
}
.sidebar nav a{
  display:block;
  padding:11px 20px;
  color:#B9C6EA;
  font-size:14px;
  border-left:3px solid transparent;
}
.sidebar nav a:hover{ background:rgba(255,255,255,0.05); text-decoration:none; }
.sidebar nav a.active{
  color:#fff;
  background:rgba(255,255,255,0.08);
  border-left-color:#5B8DEF;
  font-weight:600;
}
.sidebar .user-box{
  margin-top:20px;
  padding:14px 20px;
  border-top:1px solid rgba(255,255,255,0.08);
  font-size:12.5px;
  color:#8FA3D6;
}
.sidebar .user-box strong{ color:#fff; display:block; margin-bottom:2px; font-size:13.5px;}
.sidebar .logout{
  display:inline-block;
  margin-top:8px;
  font-size:12.5px;
  color:#F7B267;
}

.main{ flex:1; min-width:0; }
.topbar{
  background:var(--panel);
  border-bottom:1px solid var(--border);
  padding:16px 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.topbar h1{ font-size:19px; margin:0; font-weight:700; }
.content{ padding:24px 28px 60px; }

.card{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:20px;
  margin-bottom:20px;
}
.card h2{ margin-top:0; font-size:15.5px; }

.grid-stats{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(180px,1fr));
  gap:16px;
  margin-bottom:24px;
}
.stat-box{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:18px;
}
.stat-box .num{ font-size:26px; font-weight:700; color:var(--brand); }
.stat-box .label{ font-size:12.5px; color:var(--ink-soft); margin-top:2px;}

table{ width:100%; border-collapse:collapse; font-size:13.5px; }
th, td{ text-align:left; padding:10px 12px; border-bottom:1px solid var(--border); }
th{ color:var(--ink-soft); font-weight:600; font-size:12px; text-transform:uppercase; letter-spacing:0.02em; }
tr:hover td{ background:#FAFBFC; }

.badge{
  display:inline-block;
  padding:3px 9px;
  border-radius:999px;
  font-size:11px;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:0.02em;
}
.badge.active, .badge.present, .badge.paid{ background:var(--brand-soft); color:var(--brand); }
.badge.inactive, .badge.absent{ background:var(--danger-soft); color:var(--danger); }
.badge.late, .badge.draft{ background:#FCF1E3; color:var(--accent); }
.badge.leave{ background:#EAF0FB; color:#3A5FA8; }

.btn{
  display:inline-block;
  padding:9px 16px;
  border-radius:8px;
  border:1px solid var(--brand);
  background:var(--brand);
  color:#fff;
  font-size:13.5px;
  font-weight:600;
  cursor:pointer;
  text-decoration:none;
}
.btn:hover{ opacity:0.92; text-decoration:none; }
.btn.secondary{ background:transparent; color:var(--brand); }
.btn.danger{ background:var(--danger); border-color:var(--danger); }
.btn.small{ padding:6px 11px; font-size:12.5px; }

.form-row{ margin-bottom:14px; }
.form-row label{ display:block; font-size:13px; font-weight:600; margin-bottom:5px; color:var(--ink-soft); }
.form-row input, .form-row select, .form-row textarea{
  width:100%;
  padding:9px 11px;
  border:1px solid var(--border);
  border-radius:8px;
  font-size:14px;
  font-family:inherit;
}
.form-grid{ display:grid; grid-template-columns:1fr 1fr; gap:0 16px; }

.flash{
  padding:12px 16px;
  border-radius:8px;
  margin-bottom:18px;
  font-size:13.5px;
}
.flash.success{ background:var(--brand-soft); color:var(--brand); }
.flash.error{ background:var(--danger-soft); color:var(--danger); }

.login-wrap{
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  background:#0B1B3F;
}
.login-box{
  background:#fff;
  border-radius:14px;
  padding:34px 32px;
  width:100%;
  max-width:360px;
}
.login-box h1{ font-size:20px; margin:0 0 4px; }
.login-box p{ color:var(--ink-soft); font-size:13px; margin:0 0 20px; }

.actions-row{ display:flex; gap:8px; }
.text-muted{ color:var(--ink-soft); font-size:13px; }
.mt-16{ margin-top:16px; }

.tabs{
  display:flex;
  gap:6px;
  border-bottom:1px solid var(--border);
  margin-bottom:20px;
}
.tab-btn{
  padding:10px 16px;
  font-size:13.5px;
  font-weight:600;
  color:var(--ink-soft);
  background:none;
  border:none;
  border-bottom:2px solid transparent;
  cursor:pointer;
  margin-bottom:-1px;
}
.tab-btn.active{
  color:var(--brand);
  border-bottom-color:var(--brand);
}
.tab-panel{ display:none; }
.tab-panel.active{ display:block; }
.section-title{
  font-size:13px;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:0.03em;
  color:var(--ink-soft);
  margin:22px 0 12px;
}
.section-title:first-child{ margin-top:0; }