/* ===== TC KnowledgeBase — Admin theme ===== */
:root{--brand:#2563eb;--brand-dark:#1d4ed8;--ink:#1f2937;--muted:#6b7280;
  --line:#e5e7eb;--bg:#f1f5f9;--card:#fff;--sidebar:#0f172a;--radius:10px}
*{box-sizing:border-box}
body.admin{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--ink)}

/* Login */
.login-page{display:flex;min-height:100vh;align-items:center;justify-content:center;background:#0f172a}
.login-card{background:#fff;padding:32px;border-radius:14px;width:340px;box-shadow:0 10px 40px rgba(0,0,0,.3)}
.login-card h1{margin:0;font-size:22px}.login-card .sub{color:var(--muted);margin:2px 0 18px}
.login-card label{display:block;font-size:13px;font-weight:600;margin:12px 0 4px}
.login-card input{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px}
.login-card button{width:100%;margin-top:18px;background:var(--brand);color:#fff;border:0;padding:11px;border-radius:8px;cursor:pointer;font-size:15px}
.login-card button:hover{background:var(--brand-dark)}
.login-card .back{text-align:center;margin:14px 0 0;font-size:13px}

/* Top bar */
.adm-top{background:var(--card);border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;padding:12px 22px}
.adm-brand{font-weight:700}.adm-brand span{color:var(--brand);font-weight:600}
.adm-user{display:flex;gap:16px;align-items:center;font-size:13px;color:var(--muted)}
.adm-user a{color:var(--brand);text-decoration:none}.adm-user em{font-style:normal;color:var(--brand)}

/* Layout */
.adm-wrap{display:flex;min-height:calc(100vh - 50px)}
.adm-side{width:210px;background:var(--sidebar);padding:16px 0;flex-shrink:0}
.adm-side a{display:block;color:#cbd5e1;padding:11px 22px;text-decoration:none;font-size:14px}
.adm-side a:hover{background:#1e293b;color:#fff}
.adm-side a.on{background:var(--brand);color:#fff;font-weight:600}
.adm-main{flex:1;padding:26px 30px;max-width:100%;overflow:auto}

/* Headings & buttons */
.page-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}
.page-head h1{font-size:23px;margin:0}
.btn{background:var(--brand);color:#fff;border:0;padding:9px 18px;border-radius:8px;cursor:pointer;text-decoration:none;font-size:14px;display:inline-block}
.btn:hover{background:var(--brand-dark)}
.btn.full{width:100%;margin-top:14px}
.btn-ghost{border:1px solid var(--line);padding:8px 16px;border-radius:8px;text-decoration:none;color:var(--ink);font-size:14px}

/* Stat cards */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px;margin-bottom:26px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;text-align:center}
.stat span{display:block;font-size:28px;font-weight:700;color:var(--brand)}
.stat.alert span{color:#d97706}

/* Panels & tables */
.two-col-adm{display:grid;grid-template-columns:2fr 1fr;gap:22px;align-items:start}
@media(max-width:860px){.two-col-adm{grid-template-columns:1fr}.adm-side{width:64px}.adm-side a{font-size:0;text-align:center}.adm-side a::first-letter{font-size:20px}}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;margin-bottom:22px}
.panel h2,.panel h3{margin-top:0;font-size:16px}
.tbl{width:100%;border-collapse:collapse;font-size:14px}
.tbl th,.tbl td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--line);vertical-align:top}
.tbl th{font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}
.row-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.row-actions form{display:inline}
.link-danger{background:none;border:0;color:#dc2626;cursor:pointer;font-size:14px;padding:0;text-decoration:underline}
.link-act{background:none;border:0;color:var(--brand);cursor:pointer;font-size:14px;padding:0;text-decoration:underline}

/* Badges */
.badge{font-size:11px;padding:3px 9px;border-radius:20px;text-transform:capitalize}
.b-published,.b-approved{background:#dcfce7;color:#166534}
.b-draft,.b-pending{background:#fef9c3;color:#854d0e}
.b-archived,.b-spam{background:#fee2e2;color:#991b1b}
.b-superadmin{background:#ede9fe;color:#5b21b6}
.b-editor{background:#dbeafe;color:#1e40af}
.b-writer{background:#f1f5f9;color:#475569}

/* Filters */
.filters{display:flex;gap:6px;margin-bottom:16px}
.filters a{padding:6px 14px;border:1px solid var(--line);border-radius:20px;text-decoration:none;color:var(--muted);font-size:13px}
.filters a.on{background:var(--brand);color:#fff;border-color:var(--brand)}

/* Forms */
label{display:block;font-size:13px;font-weight:600;margin:14px 0 4px}
label small{font-weight:400;color:var(--muted)}
input,select,textarea{width:100%;padding:9px 11px;border:1px solid var(--line);border-radius:8px;font-size:14px;font-family:inherit}
label.check{display:flex;align-items:center;gap:8px;font-weight:400}
label.check input{width:auto}
.cancel{display:inline-block;margin-top:10px;font-size:13px;color:var(--muted);text-decoration:none}
.small{font-size:12px}.muted{color:var(--muted)}
.link-list{list-style:none;padding:0;margin:0}
.link-list li{padding:7px 0;border-bottom:1px solid var(--line);font-size:14px;display:flex;justify-content:space-between}

/* Article editor */
.editor{display:grid;grid-template-columns:1fr 300px;gap:22px;align-items:start}
@media(max-width:900px){.editor{grid-template-columns:1fr}}
.ed-main input.big{font-size:18px;font-weight:600}
.att-list{list-style:none;padding:0;margin:0 0 8px}
.att-list li{display:flex;gap:8px;align-items:center;padding:6px 0;border-bottom:1px solid var(--line);font-size:13px}
.att-list li a:first-child{flex:1}
.settings-form{max-width:560px}
.settings-form hr{border:0;border-top:1px solid var(--line);margin:18px 0}

/* Flash */
.flash{padding:11px 15px;border-radius:8px;margin-bottom:16px;font-size:14px}
.flash-success{background:#dcfce7;color:#166534}
.flash-error{background:#fee2e2;color:#991b1b}
.flash-info{background:#dbeafe;color:#1e40af}