/* admin-common.css — shared theme for AI Admin, Detection Admin, AI Video Admin, Tender Assistant.
   Each page sets its own accent palette via :root vars; layout-specific rules stay in the page's
   own <style> block. */

:root{
  --bg:#0f172a;
  --panel:#1e293b;
  --panel-2:#0f172a;
  --border:#334155;
  --text:#e2e8f0;
  --muted:#94a3b8;
  --muted-2:#64748b;
  --muted-3:#475569;

  /* Accent overridable per page */
  --accent:#0ea5e9;            /* primary button bg, focus border */
  --accent-soft:#38bdf8;       /* sidebar h1, nav-item.active, stat-value, tab.active */
  --accent-text:#fff;          /* text color on primary button */
  --accent-hover:#0284c7;      /* primary hover bg */
  --accent-tint:rgba(14,165,233,.2);
  --accent-border:#1e3a5f;     /* stat card border */
}

*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Segoe UI',system-ui,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;display:flex;flex-direction:column;font-size:14px;line-height:1.45}
a{color:var(--accent-soft);text-decoration:none}

/* Layout */
.ac-layout,.layout{display:grid;grid-template-columns:230px 1fr;min-height:100vh}
.ac-sidebar,.sidebar{background:var(--panel);border-right:1px solid var(--border);display:flex;flex-direction:column}
.ac-main,.main{background:var(--bg);overflow-y:auto}
.ac-content,.content{padding:20px}

/* Sidebar */
.sidebar-header{padding:18px 16px;border-bottom:1px solid var(--border)}
.sidebar-header h1{font-size:.95rem;font-weight:700;color:var(--accent-soft)}
.sidebar-header p{font-size:.7rem;color:var(--muted-2);margin-top:2px}
.nav-section{padding:10px 8px 3px;font-size:.6rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--muted-3)}
.nav-item{display:flex;align-items:center;gap:8px;padding:8px 14px;cursor:pointer;color:var(--muted);font-size:.825rem;border-left:3px solid transparent;transition:all .12s;text-decoration:none}
.nav-item:hover{background:var(--bg);color:var(--text)}
.nav-item.active{background:var(--bg);color:var(--accent-soft);border-left-color:var(--accent-soft)}
.nav-item .icon{font-size:.95rem;width:18px;text-align:center;flex-shrink:0}
.sidebar-footer{margin-top:auto;padding:10px 14px;border-top:1px solid var(--border);font-size:.7rem;color:var(--muted-3)}

/* Topbar */
.topbar{background:var(--panel);border-bottom:1px solid var(--border);padding:12px 20px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:10;gap:12px}
.topbar-title{font-size:1rem;font-weight:600;color:var(--accent-soft);white-space:nowrap}

/* Cards / grids / stats */
.card{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:18px;margin-bottom:14px}
.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;gap:8px;flex-wrap:wrap}
.card-title{font-size:.95rem;font-weight:600;color:#f1f5f9}
.card-subtitle{font-size:.75rem;color:var(--muted-2);margin-top:2px}

.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px}
.grid-4{display:grid;grid-template-columns:1fr 1fr 1fr 1fr;gap:12px}

.stat{background:var(--bg);border:1px solid var(--accent-border);border-radius:8px;padding:14px}
.stat-value{font-size:1.6rem;font-weight:700;color:var(--accent-soft)}
.stat-label{font-size:.7rem;color:var(--muted-2);margin-top:3px}

/* Table */
table{width:100%;border-collapse:collapse;font-size:.82rem}
th{background:var(--bg);padding:9px 12px;text-align:left;font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--muted-2);border-bottom:1px solid var(--border)}
td{padding:9px 12px;border-bottom:1px solid var(--panel);vertical-align:middle}
tr:hover td{background:rgba(15,23,42,.4)}

/* Badges */
.badge{display:inline-flex;align-items:center;gap:3px;padding:2px 7px;border-radius:9999px;font-size:.7rem;font-weight:600}
.badge-green{background:#14532d;color:#4ade80}
.badge-red{background:#450a0a;color:#f87171}
.badge-blue{background:#1e3a5f;color:#60a5fa}
.badge-yellow,.badge-amber{background:#422006;color:#fbbf24}
.badge-orange{background:#431407;color:#fb923c}
.badge-purple{background:#2e1065;color:#c084fc}
.badge-gray{background:#1e293b;color:#94a3b8;border:1px solid #334155}
.badge-teal{background:rgba(20,184,166,.15);color:#14b8a6}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:5px;padding:7px 13px;border-radius:6px;border:none;font-size:.8rem;font-weight:500;cursor:pointer;transition:all .12s;white-space:nowrap;color:var(--text);background:transparent}
.btn-primary{background:var(--accent);color:var(--accent-text)}
.btn-primary:hover{background:var(--accent-hover)}
.btn-danger{background:#dc2626;color:#fff}.btn-danger:hover{background:#b91c1c}
.btn-success{background:#16a34a;color:#0f172a}.btn-success:hover{background:#15803d}
.btn-ghost{background:transparent;color:var(--muted);border:1px solid var(--border)}.btn-ghost:hover{background:var(--panel);color:var(--text)}
.btn-sm{padding:4px 9px;font-size:.73rem}
.btn-icon{width:30px;height:30px;padding:0;justify-content:center;border-radius:6px}

/* Forms */
.form-group{margin-bottom:12px}
.form-label{display:block;font-size:.75rem;font-weight:500;color:var(--muted);margin-bottom:4px}
.form-control{width:100%;background:var(--bg);border:1px solid var(--border);color:var(--text);padding:8px 11px;border-radius:6px;font-size:.825rem}
.form-control:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-tint)}
select.form-control option{background:var(--panel)}
textarea.form-control{resize:vertical;min-height:72px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.form-row-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}

/* Chips */
.chips{display:flex;flex-wrap:wrap;gap:5px;margin-top:5px}
.chip{display:inline-flex;align-items:center;gap:3px;padding:3px 9px;border-radius:9999px;font-size:.72rem;cursor:pointer;user-select:none;transition:all .1s}
.chip-on,.chip-selected{background:var(--accent);color:var(--accent-text)}
.chip-off,.chip-unselected{background:var(--panel);border:1px solid var(--border);color:var(--muted)}
.chip-off:hover,.chip-unselected:hover{border-color:var(--accent);color:var(--accent-soft)}

/* Modal */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.75);z-index:100;display:flex;align-items:center;justify-content:center;padding:16px}
.modal{background:var(--panel);border:1px solid var(--border);border-radius:12px;width:100%;max-width:560px;max-height:90vh;overflow-y:auto}
.modal-lg{max-width:780px}
.modal-wide{max-width:920px}
.modal-header{padding:18px 22px 14px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.modal-title{font-size:.95rem;font-weight:600}
.modal-body{padding:18px 22px}
.modal-footer{padding:14px 22px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:8px}

/* Toast */
.toast-container,.toast-wrap{position:fixed;bottom:18px;right:18px;z-index:200;display:flex;flex-direction:column;gap:7px}
.toast{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:11px 14px;font-size:.82rem;display:flex;align-items:center;gap:9px;min-width:260px;animation:ac-slideIn .2s ease}
.toast-success,.toast.success{border-left:3px solid #22c55e}
.toast-error,.toast.error{border-left:3px solid #ef4444}
.toast-info,.toast.info{border-left:3px solid var(--accent-soft)}
@keyframes ac-slideIn{from{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}
@keyframes slideIn{from{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}

/* Sections / utilities */
.section{display:none}
.section.active{display:block}
.hidden{display:none !important}
.muted{color:var(--muted)}
.alert{padding:10px 14px;border-radius:7px;font-size:.82rem;margin-bottom:12px}
.alert-info{background:#1e3a5f;border:1px solid #1d4ed8;color:#93c5fd}
.alert-warn{background:#422006;border:1px solid #b45309;color:#fbbf24}
.alert-ok{background:#14532d;border:1px solid #15803d;color:#4ade80}

/* Tabs */
.tabs{display:flex;border-bottom:1px solid var(--border);margin-bottom:16px;flex-wrap:wrap}
.tab{padding:8px 16px;font-size:.825rem;cursor:pointer;color:var(--muted-2);border-bottom:2px solid transparent;margin-bottom:-1px;transition:all .12s}
.tab.active{color:var(--accent-soft);border-bottom-color:var(--accent-soft)}
.tab-content{display:none}.tab-content.active{display:block}

/* Pagination */
.pg-bar{display:flex;align-items:center;gap:6px;padding:8px 2px;font-size:.78rem;color:var(--muted-2);border-top:1px solid var(--panel);margin-top:4px}
.pg-info{flex:1;text-align:center}
.pg-btn{background:transparent;border:1px solid var(--border);color:var(--muted);border-radius:5px;padding:3px 10px;cursor:pointer;font-size:.75rem}
.pg-btn:hover:not(:disabled){background:var(--panel);color:var(--text)}
.pg-btn:disabled{opacity:.35;cursor:default}

/* Code blocks */
.code-block{background:var(--bg);border:1px solid var(--border);border-radius:6px;padding:11px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.75rem;color:var(--muted);word-break:break-all;white-space:pre-wrap;max-height:420px;overflow-y:auto}