:root{
  --sidebar-w: 240px;
  --primary: #0f6b4f;
  --primary-dark: #0a3d2e;
  --accent: #d4af37;
  --bg: #f2f1ec;
  --card-bg: #ffffff;
  --border: #e4e2da;
  --text: #26312c;
  --text-muted: #7a8079;
  --radius: 10px;
}
*{box-sizing:border-box;}
body{margin:0;font-family:'Segoe UI',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);}
a{text-decoration:none;color:inherit;}

/* ---------- Layout shell ---------- */
.app-shell{display:flex;min-height:100vh;}
.sidebar{width:var(--sidebar-w);background:#fff;border-right:1px solid var(--border);flex-shrink:0;transition:margin-left .2s;}
.sidebar-brand{display:flex;align-items:center;gap:10px;padding:20px 18px;border-bottom:1px solid var(--border);font-weight:700;font-size:16px;}
.brand-icon{color:var(--primary);font-size:20px;}
.sidebar-nav{display:flex;flex-direction:column;padding:12px;gap:2px;}
.sidebar-nav a{padding:10px 12px;border-radius:8px;color:var(--text);font-size:14px;display:flex;align-items:center;gap:10px;}
.sidebar-nav a i{width:18px;text-align:center;color:var(--text-muted);}
.sidebar-nav a:hover{background:#f2f6f4;}
.sidebar-nav a.active{background:var(--primary);color:#fff;}
.sidebar-nav a.active i{color:#fff;}

.main-area{flex:1;min-width:0;display:flex;flex-direction:column;}
.topbar{background:#fff;border-bottom:1px solid var(--border);padding:14px 24px;display:flex;align-items:center;gap:16px;}
.sidebar-toggle{display:none;background:none;border:none;font-size:18px;cursor:pointer;}
.topbar-title{font-weight:700;font-size:17px;flex:1;}
.topbar-user{display:flex;align-items:center;gap:10px;text-align:right;}
.user-name{font-weight:600;font-size:13px;}
.user-role{font-size:11px;color:var(--text-muted);grid-row:2;}
.logout-btn{margin-left:8px;color:var(--text-muted);font-size:16px;}
.content{padding:24px;flex:1;}

/* ---------- Cards / panels ---------- */
.panel{background:var(--card-bg);border-radius:var(--radius);padding:22px;border:1px solid var(--border);}
.panel-title{display:flex;align-items:center;gap:8px;font-weight:700;font-size:15px;margin-bottom:18px;}
.grid-2col{display:grid;grid-template-columns:1.15fr .85fr;gap:20px;align-items:start;}
@media(max-width:960px){.grid-2col{grid-template-columns:1fr;}}

/* ---------- Forms ---------- */
label{display:block;font-size:13px;font-weight:600;margin:14px 0 6px;color:var(--text);}
label:first-of-type{margin-top:0;}
.hint{font-size:12px;color:var(--text-muted);margin-top:4px;}
input[type=text],input[type=number],input[type=password],input[type=date],input[type=search],
textarea,select{
  width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;
  font-size:14px;background:#fff;color:var(--text);font-family:inherit;
}
textarea{resize:vertical;min-height:70px;}
input[type=color]{width:100%;height:42px;border:1px solid var(--border);border-radius:8px;padding:3px;cursor:pointer;background:#fff;}
input[type=file]{width:100%;padding:8px;border:1px solid var(--border);border-radius:8px;background:#fff;font-size:13px;}
.form-row-2{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
@media(max-width:600px){.form-row-2{grid-template-columns:1fr;}}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:8px;border:1px solid var(--border);
  background:#fff;color:var(--text);font-size:14px;font-weight:600;cursor:pointer;}
.btn:hover{filter:brightness(0.97);}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff;}
.btn-outline{background:#fff;border-color:var(--primary);color:var(--primary);}
.btn-block{width:100%;justify-content:center;}
.btn-sm{padding:6px 12px;font-size:12px;}
.btn-danger{background:#c0392b;border-color:#c0392b;color:#fff;}
.btn-group{display:flex;gap:10px;margin-top:22px;flex-wrap:wrap;}

/* ---------- Live Preview ---------- */
.preview-box{background:#e4e2da;border-radius:var(--radius);min-height:340px;display:flex;align-items:center;justify-content:center;padding:24px;}
.id-card{width:280px;height:420px;border-radius:16px;position:relative;overflow:hidden;
  box-shadow:0 10px 25px rgba(0,0,0,.25);border:3px solid var(--card-accent,#d4af37);}
.id-card.landscape{width:420px;height:280px;}
.id-card-header{padding:16px 16px 0;position:relative;z-index:2;}
.id-card-header .kop-line{font-size:10.5px;font-weight:700;letter-spacing:.3px;line-height:1.35;color:var(--card-accent,#d4af37);}
.id-card-header .kop-line.school-name{color:#fff;font-size:12.5px;}
.id-card-photo-wrap{width:80px;height:80px;margin:14px auto 8px;position:relative;}
.id-card-photo{width:100%;height:100%;object-fit:cover;background:#fff;border:2px solid var(--card-accent,#d4af37);}
.shape-square{border-radius:0;}
.shape-rounded-square{border-radius:14px;}
.shape-circle{border-radius:50%;}
.shape-hexagon{clip-path:polygon(25% 0%,75% 0%,100% 50%,75% 100%,25% 100%,0% 50%);}
.shape-teardrop{border-radius:50% 50% 50% 0;}
.shape-shield{clip-path:polygon(50% 0%,100% 15%,100% 60%,50% 100%,0% 60%,0% 15%);}
.shape-blob{border-radius:62% 38% 55% 45%/45% 55% 45% 55%;}
.id-card-body{text-align:center;padding:0 16px;position:relative;z-index:2;color:#fff;}
.id-card-body .name{font-weight:700;font-size:14px;margin:2px 0;}
.id-card-body .meta{font-size:11px;opacity:.9;margin:1px 0;}
.id-card-qr{position:absolute;right:14px;bottom:14px;width:52px;height:52px;background:#f3f3f3;border-radius:6px;
  display:flex;align-items:center;justify-content:center;font-size:9px;color:#999;z-index:2;}
.id-card-bg-gradient{position:absolute;inset:0;z-index:1;}

/* ---------- Alerts / Table / Misc ---------- */
.alert{padding:12px 16px;border-radius:8px;font-size:13px;margin-bottom:16px;}
.alert-error{background:#fdecea;color:#a83226;border:1px solid #f3c6c2;}
.alert-success{background:#e9f7ef;color:#1e7a45;border:1px solid #bfe6cd;}
table.data-table{width:100%;border-collapse:collapse;font-size:13px;}
table.data-table th,table.data-table td{padding:10px 12px;border-bottom:1px solid var(--border);text-align:left;}
table.data-table th{background:#f7f6f2;font-weight:700;}
.pill{display:inline-block;padding:2px 10px;border-radius:20px;font-size:11px;background:#eef3f0;color:var(--primary);}
.toolbar{display:flex;gap:10px;align-items:center;margin-bottom:16px;flex-wrap:wrap;}
.toolbar .grow{flex:1;}

/* ---------- Login ---------- */
.login-body{background:linear-gradient(135deg,var(--primary),var(--primary-dark));min-height:100vh;display:flex;align-items:center;justify-content:center;}
.login-card{background:#fff;padding:34px;border-radius:16px;width:340px;box-shadow:0 20px 50px rgba(0,0,0,.25);}
.login-brand{text-align:center;margin-bottom:20px;}
.login-logo{width:50px;height:50px;border-radius:12px;background:var(--primary);color:#fff;display:flex;align-items:center;
  justify-content:center;font-weight:800;margin:0 auto 10px;}
.login-brand h1{font-size:18px;margin:0;}
.login-brand p{font-size:12px;color:var(--text-muted);margin:4px 0 0;}
.login-hint{text-align:center;font-size:11px;color:var(--text-muted);margin-top:16px;}

@media(max-width:800px){
  .sidebar{position:fixed;z-index:50;height:100vh;margin-left:calc(-1 * var(--sidebar-w));}
  .sidebar.open{margin-left:0;}
  .sidebar-toggle{display:block;}
}