*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#F2F6EE;--surface:#FFFFFF;--surface2:#F0F4E8;--border:#D8E2CE;
  --text:#2C3E2C;--muted:#5A6E5A;--accent:#4A9F6E;--accent2:#6BAE8A;
  --green:#2CAE6C;--red:#D93025;--orange:#D4A017;
  --font:'Space Grotesk','Noto Sans SC',system-ui,sans-serif;
  --mono:'JetBrains Mono',monospace;
}
body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh}

/* Auth */
.auth-screen{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:20px}
.auth-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:48px 40px;width:360px;text-align:center;box-shadow:0 8px 32px rgba(60,80,50,.1)}
.auth-card h1{font-size:1.6rem;margin-bottom:4px;background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.subtitle{color:var(--muted);font-size:.85rem;margin-bottom:24px}
.auth-card input{display:block;width:100%;padding:10px 14px;margin-bottom:12px;background:var(--surface2);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:.9rem;outline:none}
.auth-card input:focus{border-color:var(--accent)}
.auth-card button{width:100%;padding:10px;background:linear-gradient(135deg,var(--accent),var(--accent2));border:none;border-radius:8px;color:#fff;font-weight:600;font-size:.95rem;cursor:pointer}
.auth-card button:hover{opacity:.9}
.error{color:var(--red);font-size:.8rem;margin-top:8px}

.hidden{display:none!important}

/* Topbar */
.topbar{display:flex;align-items:center;justify-content:space-between;padding:12px 24px;background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}
.topbar-left{display:flex;align-items:center;gap:12px}
.brand{font-weight:700;font-size:1.1rem;background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.chip{font-size:.7rem;padding:2px 8px;border-radius:12px;background:var(--green);color:#000;font-weight:600}
.topbar-nav{display:flex;gap:4px}
.tab{padding:6px 14px;border:none;background:transparent;color:var(--muted);font-size:.85rem;cursor:pointer;border-radius:6px;font-family:var(--font)}
.tab.active{background:var(--surface2);color:var(--accent)}
.tab:hover{color:var(--text)}
.topbar-right{display:flex;align-items:center;gap:12px}
.topbar-right span{color:var(--muted);font-size:.85rem}
.topbar-right button{padding:4px 12px;border:1px solid var(--border);background:transparent;color:var(--muted);border-radius:6px;cursor:pointer;font-size:.8rem;font-family:var(--font)}
.topbar-right button:hover{color:var(--text);border-color:var(--muted)}

/* Panels */
.panel{max-width:1100px;margin:24px auto;padding:24px}
.tab-content{display:none}
.tab-content.active{display:block}
.panel h2{font-size:1.3rem;margin-bottom:16px}
.panel h3{font-size:1rem;margin:20px 0 10px;color:var(--muted)}

/* Stat Grid */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-bottom:20px}
.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:20px;text-align:center;box-shadow:0 2px 8px rgba(60,80,50,.05)}
.stat-val{font-size:2rem;font-weight:700;background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.stat-label{color:var(--muted);font-size:.8rem;margin-top:4px}

/* Tables */
.data-table{width:100%;border-collapse:collapse;font-size:.85rem}
.data-table th{text-align:left;padding:10px 12px;border-bottom:2px solid var(--border);color:var(--muted);font-weight:600}
.data-table td{padding:10px 12px;border-bottom:1px solid var(--border)}
.data-table tr:hover td{background:var(--surface2)}
.data-table .badge{display:inline-block;padding:2px 8px;border-radius:10px;font-size:.75rem;font-weight:600}
.badge-admin{background:var(--accent2);color:#fff}
.badge-super{background:var(--orange);color:#fff}
.badge-user{background:var(--surface2);color:var(--muted)}
.badge-active{background:var(--green);color:#fff}
.badge-disabled{background:var(--red);color:#fff}

/* Toolbar */
.toolbar{display:flex;gap:8px;margin-bottom:16px}
.primary-btn{padding:8px 16px;background:linear-gradient(135deg,var(--accent),var(--accent2));border:none;border-radius:8px;color:#fff;font-weight:600;font-size:.85rem;cursor:pointer;font-family:var(--font)}
.primary-btn:hover{opacity:.9}

/* Action Buttons */
.act-btn{padding:3px 10px;border:1px solid var(--border);background:transparent;color:var(--muted);border-radius:4px;cursor:pointer;font-size:.75rem;font-family:var(--font);margin-right:4px}
.act-btn:hover{color:var(--text);border-color:var(--muted)}
.act-btn.danger{border-color:var(--red);color:var(--red)}
.act-btn.danger:hover{background:var(--red);color:#fff}

/* Modal */
.modal{position:fixed;inset:0;background:rgba(44,62,44,.35);display:flex;align-items:center;justify-content:center;z-index:200;backdrop-filter:blur(4px)}
.modal-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:32px;width:380px;box-shadow:0 12px 48px rgba(60,80,50,.12)}
.modal-card h3{margin-bottom:16px;font-size:1.1rem}
.modal-card label{display:block;margin-bottom:12px;font-size:.85rem;color:var(--muted)}
.modal-card input,.modal-card select{display:block;width:100%;padding:8px 12px;margin-top:4px;background:var(--surface2);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:.9rem;outline:none;font-family:var(--font)}
.modal-card input:focus,.modal-card select:focus{border-color:var(--accent)}
.modal-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:16px}
.modal-actions button{padding:8px 16px;border-radius:8px;cursor:pointer;font-size:.85rem;font-family:var(--font)}
.modal-actions button[type="button"]{background:transparent;border:1px solid var(--border);color:var(--muted)}

/* Form row */
.form-row{display:flex;gap:12px}
.form-row label{flex:1}

/* ── Responsive Design ─────────────────────────────────────────────────── */

/* Tablet (≤1024px) */
@media(max-width:1024px){
  .panel{padding:16px;margin:16px auto}
  .stat-grid{grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px}
  .topbar{padding:10px 16px}
  .topbar-nav{gap:2px}
  .tab{padding:5px 10px;font-size:.8rem}
  .data-table{font-size:.8rem}
  .data-table th,.data-table td{padding:8px}
  .modal-card{width:90%;max-width:380px;padding:24px}
  .form-row{flex-direction:column;gap:8px}
}

/* Mobile landscape (≤768px) */
@media(max-width:768px){
  .topbar{flex-wrap:wrap;gap:8px}
  .topbar-left{width:100%;justify-content:space-between}
  .topbar-nav{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;padding-bottom:4px}
  .topbar-nav::-webkit-scrollbar{display:none}
  .topbar-right{width:100%;justify-content:flex-end}
  .panel{padding:12px;margin:12px 8px}
  .panel h2{font-size:1.1rem}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:10px}
  .stat-val{font-size:1.6rem}
  .data-table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .toolbar{flex-wrap:wrap}
  .auth-card{width:90%;max-width:360px;padding:32px 24px}
  .modal-card{width:92%;padding:20px}
}

/* Mobile portrait (≤480px) */
@media(max-width:480px){
  .topbar{padding:8px 12px}
  .brand{font-size:.95rem}
  .tab{font-size:.75rem;padding:4px 8px}
  .panel{padding:8px;margin:8px 4px}
  .panel h2{font-size:1rem;margin-bottom:10px}
  .stat-grid{grid-template-columns:1fr 1fr;gap:8px}
  .stat-card{padding:14px 10px;border-radius:8px}
  .stat-val{font-size:1.3rem}
  .stat-label{font-size:.7rem}
  .primary-btn{width:100%;text-align:center}
  .toolbar{flex-direction:column}
  .auth-card{width:95%;padding:24px 16px}
  .auth-card h1{font-size:1.3rem}
  .data-table th,.data-table td{padding:6px 8px;font-size:.75rem}
  .act-btn{font-size:.7rem;padding:2px 6px}
  .modal-card{width:96%;padding:16px;border-radius:12px}
  .modal-card h3{font-size:1rem}
  .topbar-right span{font-size:.75rem}
}

/* Small mobile (≤360px) */
@media(max-width:360px){
  .auth-card{padding:20px 12px}
  .stat-grid{grid-template-columns:1fr}
  .topbar-nav{gap:0}
  .tab{padding:4px 6px;font-size:.7rem}
}

/* Touch devices */
@media(hover:none) and (pointer:coarse){
  .tab{min-height:44px;display:flex;align-items:center;justify-content:center}
  .primary-btn,.act-btn,.topbar-right button,.auth-card button{min-height:44px}
  .data-table td,.data-table th{padding:12px 8px}
}