:root{
  --green-900:#0b3d24;
  --green-700:#136c3f;
  --green-600:#178a4f;
  --green-500:#1fa860;
  --green-100:#e6f6ec;
  --green-50:#f4fbf6;
  --white:#ffffff;
  --ink:#0f2419;
  --muted:#6b8578;
  --border:#dcefe2;
  --red:#d64545;
  --amber:#c98a1a;
  --radius:14px;
  --shadow:0 4px 16px rgba(11,61,36,0.08);
  --shadow-lg:0 12px 32px rgba(11,61,36,0.14);
}
*{box-sizing:border-box;}
body{
  margin:0;
  font-family:'Segoe UI',system-ui,-apple-system,sans-serif;
  background:var(--green-50);
  color:var(--ink);
}
a{color:inherit;text-decoration:none;}
.app{display:flex;min-height:100vh;}

/* Sidebar */
.sidebar{
  width:250px;
  background:linear-gradient(180deg,var(--green-900),var(--green-700));
  color:#eafff2;
  flex-shrink:0;
  position:fixed;
  top:0;left:0;bottom:0;
  overflow-y:auto;
  z-index:100;
  transition:transform .25s ease;
}
.sidebar .brand{
  display:flex;align-items:center;gap:10px;
  padding:22px 20px;
  border-bottom:1px solid rgba(255,255,255,0.12);
}
.sidebar .brand .logo{
  width:38px;height:38px;border-radius:10px;
  background:var(--green-500);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;color:#fff;
}
.sidebar .brand .name{font-weight:700;font-size:16px;letter-spacing:.3px;}
.sidebar .sect-title{
  font-size:11px;text-transform:uppercase;letter-spacing:1px;
  color:#9fd8b6;padding:16px 20px 6px;
}
.sidebar nav a{
  display:flex;align-items:center;gap:10px;
  padding:11px 20px;
  font-size:14.5px;color:#dff5e7;
  border-left:3px solid transparent;
}
.sidebar nav a:hover{background:rgba(255,255,255,0.06);}
.sidebar nav a.active{
  background:rgba(255,255,255,0.1);
  border-left:3px solid var(--green-500);
  color:#fff;font-weight:600;
}
.sidebar .user-box{
  padding:16px 20px;border-top:1px solid rgba(255,255,255,0.12);
  font-size:13px;color:#bfe8cf;
}
.sidebar .user-box a{color:#ffd0d0;font-weight:600;}

/* Main */
.main{margin-left:250px;flex:1;min-width:0;}
.topbar{
  background:var(--white);
  border-bottom:1px solid var(--border);
  padding:16px 28px;
  display:flex;align-items:center;justify-content:space-between;
  position:sticky;top:0;z-index:50;
}
.topbar h1{font-size:20px;margin:0;color:var(--green-900);}
.topbar .site-tag{
  background:var(--green-100);color:var(--green-700);
  padding:5px 12px;border-radius:20px;font-size:12.5px;font-weight:600;
}
.menu-toggle{display:none;background:none;border:none;font-size:22px;color:var(--green-900);cursor:pointer;}
.content{padding:26px 28px;}

/* Cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;margin-bottom:24px;}
.card{
  background:var(--white);border-radius:var(--radius);
  padding:20px;box-shadow:var(--shadow);border:1px solid var(--border);
}
.card .label{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.5px;font-weight:600;}
.card .value{font-size:26px;font-weight:700;margin-top:8px;color:var(--green-900);}
.card .value.red{color:var(--red);}
.card .value.green{color:var(--green-600);}

.panel{
  background:var(--white);border-radius:var(--radius);
  border:1px solid var(--border);box-shadow:var(--shadow);
  padding:22px;margin-bottom:22px;
}
.panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;flex-wrap:wrap;gap:10px;}
.panel-head h2{font-size:17px;margin:0;color:var(--green-900);}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--green-600);color:#fff;
  border:none;padding:10px 18px;border-radius:9px;
  font-size:14px;font-weight:600;cursor:pointer;
}
.btn:hover{background:var(--green-700);}
.btn.outline{background:var(--white);color:var(--green-700);border:1.5px solid var(--green-600);}
.btn.danger{background:var(--red);}
.btn.sm{padding:6px 12px;font-size:13px;}
.btn.block{width:100%;justify-content:center;}

/* Table */
table{width:100%;border-collapse:collapse;font-size:14px;}
th{
  text-align:left;font-size:12px;text-transform:uppercase;
  color:var(--muted);letter-spacing:.4px;
  padding:10px 12px;border-bottom:2px solid var(--border);
}
td{padding:12px;border-bottom:1px solid var(--border);}
tr:hover td{background:var(--green-50);}
.table-wrap{overflow-x:auto;}
.badge{padding:4px 10px;border-radius:20px;font-size:12px;font-weight:600;}
.badge.green{background:var(--green-100);color:var(--green-700);}
.badge.amber{background:#fdf1dd;color:var(--amber);}
.badge.red{background:#fbe4e4;color:var(--red);}
.empty{text-align:center;color:var(--muted);padding:30px;font-size:14px;}

/* Forms */
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;}
.field{display:flex;flex-direction:column;gap:6px;}
.field label{font-size:13px;font-weight:600;color:var(--green-900);}
.field input,.field select,.field textarea{
  padding:10px 12px;border:1.5px solid var(--border);border-radius:9px;
  font-size:14px;background:var(--white);color:var(--ink);
}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--green-500);}
.field.full{grid-column:1/-1;}
.form-actions{display:flex;gap:10px;margin-top:20px;}

/* Login page */
.auth-wrap{
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--green-900),var(--green-600));
  padding:20px;
}
.auth-card{
  background:var(--white);border-radius:18px;padding:36px 32px;
  width:100%;max-width:400px;box-shadow:var(--shadow-lg);
}
.auth-card .logo{
  width:56px;height:56px;border-radius:14px;background:var(--green-600);
  display:flex;align-items:center;justify-content:center;color:#fff;
  font-weight:800;font-size:20px;margin:0 auto 14px;
}
.auth-card h2{text-align:center;color:var(--green-900);margin:0 0 4px;}
.auth-card p.sub{text-align:center;color:var(--muted);font-size:13.5px;margin:0 0 22px;}
.alert{padding:11px 14px;border-radius:9px;font-size:13.5px;margin-bottom:16px;}
.alert.error{background:#fbe4e4;color:#a52323;}
.alert.success{background:var(--green-100);color:var(--green-700);}

/* Photo upload */
.photo-preview{
  width:100%;max-width:220px;border-radius:10px;border:1.5px dashed var(--border);
  padding:8px;text-align:center;color:var(--muted);font-size:13px;
}
.photo-preview img{width:100%;border-radius:8px;display:block;margin-top:6px;}

/* Responsive */
@media(max-width:900px){
  .sidebar{transform:translateX(-100%);}
  .sidebar.open{transform:translateX(0);}
  .main{margin-left:0;}
  .menu-toggle{display:block;}
  .content{padding:18px 16px;}
  .topbar{padding:14px 16px;}
}