/* ===================================================================
   BlockID Portal — hand-written responsive stylesheet (no frameworks)
   =================================================================== */
:root{
  --bg:#0f172a;          /* sidebar / deep */
  --bg-2:#1e293b;
  --surface:#ffffff;
  --surface-2:#f8fafc;
  --line:#e2e8f0;
  --text:#0f172a;
  --muted:#64748b;
  --primary:#2563eb;
  --primary-d:#1d4ed8;
  --green:#16a34a;
  --green-bg:#dcfce7;
  --red:#dc2626;
  --red-bg:#fee2e2;
  --amber:#d97706;
  --amber-bg:#fef3c7;
  --gray-bg:#f1f5f9;
  --radius:10px;
  --shadow:0 1px 3px rgba(15,23,42,.08),0 1px 2px rgba(15,23,42,.06);
  --shadow-lg:0 10px 25px rgba(15,23,42,.12);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sans:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:var(--sans);color:var(--text);background:var(--surface-2);line-height:1.5;font-size:15px}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{margin:0 0 .5rem;line-height:1.25}
h1{font-size:1.6rem}h2{font-size:1.25rem}h3{font-size:1.05rem}
p{margin:.25rem 0 .75rem}
code,pre{font-family:var(--mono)}
.muted{color:var(--muted)}
.small{font-size:.85rem}
.mono{font-family:var(--mono);word-break:break-all}
.center{text-align:center}
.mt{margin-top:1rem}.mb{margin-bottom:1rem}
.hidden{display:none}

/* ---------- App layout ---------- */
.layout{display:flex;min-height:100vh}
.sidebar{width:248px;background:var(--bg);color:#cbd5e1;flex-shrink:0;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.sidebar .brand{display:flex;align-items:center;gap:.5rem;color:#fff;font-weight:700;font-size:1.1rem;padding:1.1rem 1.25rem;border-bottom:1px solid rgba(255,255,255,.08)}
.brand-mark{color:#60a5fa}
.nav{padding:.75rem .5rem;overflow-y:auto;flex:1}
.nav-section{font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;color:#64748b;padding:.85rem .9rem .35rem}
.nav a{display:flex;align-items:center;gap:.6rem;color:#cbd5e1;padding:.55rem .9rem;border-radius:8px;font-size:.92rem;margin:.1rem 0}
.nav a:hover{background:rgba(255,255,255,.06);text-decoration:none;color:#fff}
.nav a.active{background:var(--primary);color:#fff}
.nav .ico{width:18px;text-align:center;opacity:.9}
.sidebar-foot{padding:.75rem 1rem;border-top:1px solid rgba(255,255,255,.08);font-size:.8rem;color:#94a3b8}

.main{flex:1;display:flex;flex-direction:column;min-width:0}
.topbar{background:var(--surface);border-bottom:1px solid var(--line);padding:.75rem 1.5rem;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:20}
.topbar .page-title{font-weight:600}
.topbar .user{display:flex;align-items:center;gap:.75rem;font-size:.9rem}
.avatar{width:34px;height:34px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600}
.menu-toggle{display:none;background:none;border:0;font-size:1.4rem;cursor:pointer;color:var(--text)}
.content{padding:1.5rem;max-width:1200px;width:100%}

/* ---------- Cards & grid ---------- */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.25rem;margin-bottom:1.25rem}
.card h2,.card h3{margin-top:0}
.grid{display:grid;gap:1rem}
.grid.cols-2{grid-template-columns:repeat(2,1fr)}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-4{grid-template-columns:repeat(4,1fr)}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.1rem;box-shadow:var(--shadow)}
.stat .n{font-size:1.9rem;font-weight:700}
.stat .l{color:var(--muted);font-size:.85rem;text-transform:uppercase;letter-spacing:.04em}
.stat .ico{float:right;font-size:1.4rem;opacity:.3}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:.4rem;border:1px solid var(--line);background:var(--surface);color:var(--text);padding:.5rem .9rem;border-radius:8px;font-size:.9rem;cursor:pointer;font-weight:500;transition:.12s}
.btn:hover{text-decoration:none;background:var(--surface-2)}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-d)}
.btn-danger{background:var(--red);border-color:var(--red);color:#fff}
.btn-danger:hover{filter:brightness(.95)}
.btn-sm{padding:.3rem .6rem;font-size:.82rem}
.btn-block{width:100%;justify-content:center}
.btn[disabled]{opacity:.5;cursor:not-allowed}

/* ---------- Forms ---------- */
.form-row{margin-bottom:1rem}
label{display:block;font-weight:500;margin-bottom:.35rem;font-size:.9rem}
input,select,textarea{width:100%;padding:.55rem .7rem;border:1px solid var(--line);border-radius:8px;font-size:.92rem;font-family:inherit;background:#fff;color:var(--text)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.15)}
textarea{min-height:120px;font-family:var(--mono);font-size:.85rem}
.field-error{color:var(--red);font-size:.82rem;margin-top:.25rem}
.help{color:var(--muted);font-size:.82rem;margin-top:.25rem}
fieldset{border:1px solid var(--line);border-radius:8px;padding:1rem;margin-bottom:1rem}
legend{font-weight:600;padding:0 .4rem}

/* ---------- Tables ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
table{width:100%;border-collapse:collapse;font-size:.9rem}
th,td{text-align:left;padding:.7rem .9rem;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--surface-2);font-weight:600;color:var(--muted);font-size:.78rem;text-transform:uppercase;letter-spacing:.03em;white-space:nowrap}
tbody tr:hover{background:var(--surface-2)}
table .mono{font-size:.82rem}

/* ---------- Badges ---------- */
.badge{display:inline-block;padding:.18rem .55rem;border-radius:999px;font-size:.74rem;font-weight:600;text-transform:uppercase;letter-spacing:.03em}
.badge-green{background:var(--green-bg);color:var(--green)}
.badge-red{background:var(--red-bg);color:var(--red)}
.badge-amber{background:var(--amber-bg);color:var(--amber)}
.badge-gray{background:var(--gray-bg);color:var(--muted)}
.role-pill{background:#eef2ff;color:#4338ca;padding:.18rem .55rem;border-radius:999px;font-size:.74rem;font-weight:600}

/* ---------- Alerts / flash ---------- */
.alert{padding:.8rem 1rem;border-radius:8px;margin-bottom:1rem;border:1px solid transparent;font-size:.92rem}
.alert-success{background:var(--green-bg);color:#166534;border-color:#bbf7d0}
.alert-error{background:var(--red-bg);color:#991b1b;border-color:#fecaca}
.alert-info{background:#e0f2fe;color:#075985;border-color:#bae6fd}
.alert-warn{background:var(--amber-bg);color:#92400e;border-color:#fde68a}

/* ---------- Auth / centered pages ---------- */
.centered-page{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:1.5rem;background:linear-gradient(135deg,#0f172a,#1e3a8a)}
.auth-card{max-width:410px;width:100%;box-shadow:var(--shadow-lg)}
.auth-card .brand{font-size:1.3rem;font-weight:700;margin-bottom:.25rem;display:flex;align-items:center;gap:.5rem}
.error-code{font-size:1.5rem;margin-top:.5rem}

/* ---------- Credential cards (wallet) ---------- */
.cred-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1rem}
.cred-card{border-radius:14px;padding:1.1rem;color:#fff;background:linear-gradient(135deg,#1e40af,#4f46e5);box-shadow:var(--shadow);position:relative;min-height:170px;display:flex;flex-direction:column;justify-content:space-between}
.cred-card.revoked{background:linear-gradient(135deg,#7f1d1d,#b91c1c)}
.cred-card.expired{background:linear-gradient(135deg,#78350f,#b45309)}
.cred-card .ct{font-size:1.05rem;font-weight:700}
.cred-card .cd{font-size:.8rem;opacity:.85;word-break:break-all}
.cred-card .cf{display:flex;justify-content:space-between;align-items:flex-end;font-size:.78rem;opacity:.9}
.cred-card .badge{background:rgba(255,255,255,.2);color:#fff}

/* ---------- Detail lists ---------- */
.kv{display:grid;grid-template-columns:200px 1fr;gap:.5rem 1rem}
.kv dt{color:var(--muted);font-size:.85rem}
.kv dd{margin:0;word-break:break-word}
pre.code{background:#0f172a;color:#e2e8f0;padding:1rem;border-radius:8px;overflow:auto;font-size:.82rem;max-height:480px}

/* ---------- Verify result ---------- */
.verdict{padding:1.25rem;border-radius:var(--radius);margin-bottom:1rem;display:flex;align-items:center;gap:1rem}
.verdict .vico{font-size:2rem}
.verdict.valid{background:var(--green-bg);color:#166534}
.verdict.bad{background:var(--red-bg);color:#991b1b}
.verdict.warn{background:var(--amber-bg);color:#92400e}
.checklist{list-style:none;padding:0;margin:0}
.checklist li{padding:.4rem 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}
.checklist li:last-child{border-bottom:0}
.check-pass{color:var(--green);font-weight:600}
.check-fail{color:var(--red);font-weight:600}

/* ---------- QR ---------- */
.qr-box{display:inline-block;background:#fff;padding:12px;border:1px solid var(--line);border-radius:8px}
#qrcode{image-rendering:pixelated}

/* ---------- Page header ---------- */
.page-head{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:.75rem;margin-bottom:1.25rem}
.page-head .actions{display:flex;gap:.5rem;flex-wrap:wrap}
.toolbar{display:flex;gap:.5rem;flex-wrap:wrap;margin-bottom:1rem;align-items:center}
.toolbar input,.toolbar select{width:auto;min-width:200px}

/* ---------- Responsive ---------- */
@media (max-width:980px){
  .grid.cols-4{grid-template-columns:repeat(2,1fr)}
  .grid.cols-3{grid-template-columns:repeat(2,1fr)}
  .kv{grid-template-columns:1fr}
}
@media (max-width:760px){
  .sidebar{position:fixed;left:0;top:0;z-index:50;transform:translateX(-100%);transition:transform .2s;box-shadow:var(--shadow-lg)}
  .sidebar.open{transform:translateX(0)}
  .menu-toggle{display:block}
  .grid.cols-2,.grid.cols-4,.grid.cols-3{grid-template-columns:1fr}
  .content{padding:1rem}
  .backdrop.show{display:block;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:40}
}
.backdrop{display:none}