:root {
  --bg:       #0B1220;
  --bg2:      #121A2B;
  --surface:  #1A2438;
  --surface2: #1f2d42;
  --border:   #2a3a55;
  --accent:   #4C8DFF;
  --accent2:  #6EA8FF;
  --orange:   #FF5A1F;
  --danger:   #ef4444;
  --warn:     #f59e0b;
  --success:  #22c55e;
  --text:     #E6EDF6;
  --muted:    #9FB0C5;
  --radius:   10px;
}
* { 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; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent2); text-decoration: underline; }
code { font-family: "Courier New", monospace; font-size: .85em; color: var(--accent2); }

/* Nav */
.nav { background: var(--bg2); border-bottom: 2px solid var(--border); padding: .75rem 2rem; display: flex; align-items: center; gap: 2rem; }
.nav .brand { font-weight: 800; font-size: 1.1rem; background: linear-gradient(90deg, #4C8DFF, #6EA8FF); -webkit-background-clip: text; -webkit-text-fill-color: transparent; letter-spacing: -.01em; }
.nav a { color: var(--muted); font-size: .9rem; font-weight: 500; transition: color .15s; }
.nav a:hover { color: var(--text); text-decoration: none; }
.nav a.active { color: var(--accent2); }
.nav .spacer { flex: 1; }
.nav .logout { color: var(--danger) !important; }

/* Main */
.main { max-width: 1140px; margin: 2rem auto; padding: 0 1.5rem; }

/* Cards */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; margin-bottom: 1.5rem; }
.card h2 { font-size: 1.05rem; font-weight: 700; margin-bottom: 1rem; color: var(--text); }

/* Tables */
table { width: 100%; border-collapse: collapse; font-size: .875rem; }
th { text-align: left; padding: .5rem .75rem; color: var(--muted); font-weight: 600; font-size: .75rem; text-transform: uppercase; letter-spacing: .06em; border-bottom: 1px solid var(--border); }
td { padding: .65rem .75rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(76,141,255,.06); }

/* Badges */
.badge { display: inline-block; padding: .2rem .65rem; border-radius: 99px; font-size: .72rem; font-weight: 700; letter-spacing: .03em; }
.badge-active  { background: rgba(34,197,94,.15);  color: #22c55e; }
.badge-revoked { background: rgba(239,68,68,.15);  color: #ef4444; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: .35rem; padding: .45rem 1.1rem; border-radius: 6px; border: none; font-size: .85rem; font-weight: 600; cursor: pointer; transition: opacity .15s, transform .1s; text-decoration: none; }
.btn:hover { opacity: .88; transform: translateY(-1px); text-decoration: none; }
.btn:active { transform: translateY(0); }
.btn-primary { background: linear-gradient(135deg, #3a7de0, #4C8DFF); color: #fff; box-shadow: 0 2px 8px rgba(76,141,255,.3); }
.btn-success { background: #22c55e; color: #fff; }
.btn-danger  { background: #ef4444; color: #fff; }
.btn-warn    { background: #f59e0b; color: #000; }
.btn-orange  { background: linear-gradient(135deg, #e0481a, #FF5A1F); color: #fff; }
.btn-ghost   { background: transparent; border: 1px solid var(--border); color: var(--muted); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-sm { padding: .28rem .7rem; font-size: .78rem; }

/* Forms */
.form-group { margin-bottom: 1.1rem; }
label { display: block; font-size: .82rem; color: var(--muted); margin-bottom: .35rem; font-weight: 500; }
input[type=text], input[type=password], input[type=number], select, textarea { width: 100%; background: var(--bg2); border: 1px solid var(--border); border-radius: 6px; padding: .6rem .85rem; color: var(--text); font-size: .9rem; font-family: inherit; outline: none; transition: border-color .15s, box-shadow .15s; }
input:focus, select:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(76,141,255,.15); }
textarea { min-height: 220px; resize: vertical; font-family: "Courier New", monospace; font-size: .82rem; line-height: 1.5; }

/* Alerts */
.alert { padding: .75rem 1rem; border-radius: 6px; margin-bottom: 1rem; font-size: .875rem; border: 1px solid; }
.alert-success { background: rgba(34,197,94,.08);  border-color: rgba(34,197,94,.3);  color: #22c55e; }
.alert-error   { background: rgba(239,68,68,.08);  border-color: rgba(239,68,68,.3);  color: #ef4444; }
.alert-info    { background: rgba(76,141,255,.08); border-color: rgba(76,141,255,.3); color: var(--accent2); }
.alert-warn    { background: rgba(245,158,11,.08); border-color: rgba(245,158,11,.3); color: #f59e0b; }

/* Grid */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1.5rem; }

/* Stat boxes */
.stat { text-align: center; padding: .5rem; }
.stat .value { font-size: 2.2rem; font-weight: 800; background: linear-gradient(135deg, #4C8DFF, #6EA8FF); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.stat .value.green { background: linear-gradient(135deg, #22c55e, #4ade80); -webkit-background-clip: text; }
.stat .value.red   { background: linear-gradient(135deg, #ef4444, #f87171); -webkit-background-clip: text; }
.stat .label { font-size: .8rem; color: var(--muted); margin-top: .3rem; text-transform: uppercase; letter-spacing: .05em; font-weight: 600; }

/* Code block */
.code-block { background: var(--bg); border: 1px solid var(--border); border-radius: 6px; padding: .9rem 1rem; font-family: "Courier New", monospace; font-size: .82rem; color: var(--accent2); white-space: pre-wrap; word-break: break-all; }

/* Login / setup page */
.login-wrap { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 2rem; background: radial-gradient(ellipse at top, #1A2438 0%, #0B1220 60%); }
.login-box { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 2.5rem; width: 100%; max-width: 440px; box-shadow: 0 20px 60px rgba(0,0,0,.5); }
.login-box h1 { font-size: 1.5rem; font-weight: 800; margin-bottom: .4rem; }
.login-box p  { color: var(--muted); font-size: .875rem; margin-bottom: 1.5rem; }
.brand-logo { font-size: 1.6rem; font-weight: 900; background: linear-gradient(90deg, #4C8DFF, #FF5A1F); -webkit-background-clip: text; -webkit-text-fill-color: transparent; margin-bottom: 1.5rem; display: block; }

/* Secret / TOTP box */
.secret-box { background: var(--bg); border: 1px solid var(--accent); border-radius: 8px; padding: 1.1rem; text-align: center; margin: 1rem 0; }
.secret-box .secret { font-size: 1.3rem; letter-spacing: .25rem; font-family: monospace; color: var(--accent2); word-break: break-all; }

/* Divider */
hr { border: none; border-top: 1px solid var(--border); margin: 1.25rem 0; }

/* Page header */
.page-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.25rem; flex-wrap: wrap; gap: .75rem; }
.page-header h1 { font-size: 1.3rem; font-weight: 800; }

/* Responsive */
@media (max-width: 700px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .nav { flex-wrap: wrap; gap: .75rem; }
  .page-header { flex-direction: column; align-items: flex-start; }
}