:root {
  --bg: #0b0d10;
  --panel: #12161c;
  --panel-2: #171d25;
  --line: #232b36;
  --text: #eef2f7;
  --muted: #8b97a8;
  --cyan: #22d3ee;
  --violet: #8b5cf6;
  --good: #34d399;
  --bad: #f87171;
  --warn: #fbbf24;
  --radius: 20px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(900px 500px at 12% -10%, rgba(34, 211, 238, .12), transparent 60%),
    radial-gradient(800px 500px at 88% 0%, rgba(139, 92, 246, .14), transparent 60%),
    var(--bg);
  color: var(--text);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 980px; margin: 0 auto; padding: 32px 20px 64px; }

.hero { display: flex; align-items: center; gap: 18px; margin-bottom: 26px; }
.hero h1 { margin: 0; font-size: 30px; letter-spacing: .5px; }
.sub { margin: 2px 0 0; color: var(--muted); font-size: 14px; }
.logo { border-radius: 18px; box-shadow: 0 10px 30px rgba(34, 211, 238, .18); }

.card {
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  margin-bottom: 18px;
}

.card h2 { margin: 0 0 14px; font-size: 17px; letter-spacing: .3px; }
.muted { color: var(--muted); }
.row { display: flex; gap: 10px; }

input, select, textarea {
  flex: 1;
  min-width: 0;
  background: #0d1117;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--text);
  padding: 12px 14px;
  font: inherit;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(34, 211, 238, .12); }
input::placeholder { color: #5b6675; }

button {
  border: 0;
  border-radius: 12px;
  padding: 12px 20px;
  font: inherit;
  font-weight: 600;
  color: #06121a;
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  cursor: pointer;
  transition: transform .08s, filter .15s;
}
button:hover { filter: brightness(1.08); }
button:active { transform: translateY(1px); }
button.ghost { background: transparent; color: var(--text); border: 1px solid var(--line); font-weight: 500; }
button.danger { background: linear-gradient(135deg, #f87171, #b91c1c); color: #fff; }
button.tiny { padding: 6px 10px; font-size: 12px; border-radius: 9px; }

.result { margin-top: 14px; padding: 14px; border-radius: 14px; background: #0d1117; border: 1px solid var(--line); }
.result.good { border-color: rgba(52, 211, 153, .4); box-shadow: inset 0 0 0 1px rgba(52, 211, 153, .12); }
.result.bad { border-color: rgba(248, 113, 113, .4); }

.specs { margin: 16px 0 0; display: grid; gap: 8px; }
.specs div { display: flex; gap: 10px; align-items: baseline; }
.specs dt { color: var(--muted); min-width: 84px; font-size: 13px; }
.specs dd { margin: 0; }
code { background: #0d1117; border: 1px solid var(--line); border-radius: 7px; padding: 2px 7px; font-size: 13px; }

.foot { display: flex; justify-content: space-between; color: var(--muted); font-size: 13px; margin-top: 26px; }
.foot a { color: var(--muted); text-decoration: none; }
.foot a:hover { color: var(--cyan); }

.btn-link {
  display: inline-block;
  padding: 11px 20px;
  border-radius: 12px;
  font-weight: 600;
  color: #06121a !important;
  text-decoration: none;
  background: linear-gradient(135deg, var(--cyan), var(--violet));
}

/* ---------------- admin ---------------- */
.tabs { display: flex; gap: 8px; margin-bottom: 18px; flex-wrap: wrap; }
.tab { padding: 9px 16px; border-radius: 999px; border: 1px solid var(--line); background: #0d1117; color: var(--muted); cursor: pointer; font-size: 13px; }
.tab.on { color: #06121a; background: linear-gradient(135deg, var(--cyan), var(--violet)); border-color: transparent; font-weight: 600; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
.stat { background: #0d1117; border: 1px solid var(--line); border-radius: 16px; padding: 16px; }
.stat b { display: block; font-size: 26px; letter-spacing: .5px; }
.stat span { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .8px; }

.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; align-items: end; }
label.field { display: grid; gap: 6px; font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .7px; }
label.field input, label.field select { flex: none; width: 100%; }

table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th { text-align: left; color: var(--muted); font-weight: 500; font-size: 12px; text-transform: uppercase; letter-spacing: .7px; padding: 10px 8px; border-bottom: 1px solid var(--line); }
td { padding: 11px 8px; border-bottom: 1px solid #1a212a; vertical-align: middle; }
tr:hover td { background: rgba(34, 211, 238, .03); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12.5px; }

.pill { display: inline-block; padding: 3px 9px; border-radius: 999px; font-size: 11px; font-weight: 600; letter-spacing: .4px; }
.pill.active { background: rgba(52, 211, 153, .14); color: var(--good); }
.pill.unused { background: rgba(34, 211, 238, .14); color: var(--cyan); }
.pill.revoked { background: rgba(248, 113, 113, .14); color: var(--bad); }
.pill.expired { background: rgba(251, 191, 36, .14); color: var(--warn); }

.actions { display: flex; gap: 6px; flex-wrap: wrap; }
.toast { position: fixed; left: 50%; bottom: 26px; transform: translateX(-50%); background: #0d1117; border: 1px solid var(--line); padding: 12px 20px; border-radius: 14px; box-shadow: 0 20px 50px rgba(0,0,0,.5); opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; }
.toast.on { opacity: 1; transform: translateX(-50%) translateY(-4px); }
.toast.bad { border-color: rgba(248,113,113,.5); }

.login { max-width: 380px; margin: 10vh auto; }
.hidden { display: none !important; }
.gen-out { margin-top: 14px; background: #0d1117; border: 1px solid var(--line); border-radius: 14px; padding: 14px; }
.gen-out pre { margin: 8px 0 0; white-space: pre-wrap; word-break: break-all; font-family: ui-monospace, monospace; font-size: 13px; }
.log-line { padding: 6px 0; border-bottom: 1px solid #1a212a; font-size: 13px; color: var(--muted); }
.log-line b { color: var(--text); font-weight: 500; }