@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=IBM+Plex+Sans:wght@400;500;600;700&display=swap');

:root {
  --bg: #0d0f12;
  --panel: #15181d;
  --panel-2: #1b1f26;
  --line: #262b33;
  --text: #e6e9ef;
  --muted: #7d8694;
  --accent: #c8f560;      /* lime */
  --accent-2: #ffb454;    /* amber */
  --danger: #ff6b6b;
  --ok: #5ee0a0;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'IBM Plex Sans', sans-serif;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(200,245,96,.06), transparent 60%),
    radial-gradient(900px 500px at -10% 110%, rgba(255,180,84,.05), transparent 60%),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 1080px; margin: 0 auto; padding: 32px 20px 64px; }

/* top bar */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding-bottom: 20px; margin-bottom: 28px;
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: baseline; gap: 12px; }
.brand .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 16px var(--accent); align-self: center; }
.brand h1 {
  font-family: 'IBM Plex Mono', monospace; font-size: 18px; font-weight: 600;
  letter-spacing: .5px;
}
.brand h1 span { color: var(--accent); }
.nav { display: flex; gap: 6px; }
.nav a, .logout {
  font-family: 'IBM Plex Mono', monospace; font-size: 13px;
  color: var(--muted); text-decoration: none; padding: 8px 14px;
  border: 1px solid transparent; border-radius: 8px; transition: .15s;
  background: none; cursor: pointer;
}
.nav a:hover, .logout:hover { color: var(--text); border-color: var(--line); background: var(--panel); }
.nav a.active { color: var(--bg); background: var(--accent); }

/* cards / panels */
.panel {
  background: linear-gradient(180deg, var(--panel), var(--panel-2));
  border: 1px solid var(--line); border-radius: 16px; padding: 26px;
  margin-bottom: 22px;
}
.panel h2 {
  font-family: 'IBM Plex Mono', monospace; font-size: 14px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 1.5px; color: var(--muted);
  margin-bottom: 20px; display: flex; align-items: center; gap: 8px;
}
.panel h2::before { content:''; width: 18px; height: 2px; background: var(--accent); }

/* stat grid */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 22px; }
.stat { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 18px; }
.stat .num { font-family: 'IBM Plex Mono', monospace; font-size: 30px; font-weight: 600; }
.stat .lbl { color: var(--muted); font-size: 12px; margin-top: 6px; text-transform: uppercase; letter-spacing: 1px; }
.stat.a .num { color: var(--accent); }
.stat.b .num { color: var(--accent-2); }
.stat.c .num { color: var(--ok); }

/* form */
.row { display: flex; flex-wrap: wrap; gap: 18px; align-items: flex-end; }
.field { flex: 1; min-width: 180px; }
.field label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 8px;
  font-family: 'IBM Plex Mono', monospace; letter-spacing: .5px; }
select, input[type=number], input[type=text], input[type=password] {
  width: 100%; background: var(--bg); border: 1px solid var(--line); color: var(--text);
  border-radius: 10px; padding: 13px 14px; font-size: 14px;
  font-family: 'IBM Plex Sans', sans-serif; transition: .15s;
}
select:focus, input:focus { outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(200,245,96,.12); }

.btn {
  font-family: 'IBM Plex Mono', monospace; font-weight: 600; font-size: 14px;
  background: var(--accent); color: #10130a; border: none; border-radius: 10px;
  padding: 13px 24px; cursor: pointer; transition: .15s; letter-spacing: .5px;
}
.btn:hover { filter: brightness(1.08); transform: translateY(-1px); }
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--line); }
.btn.ghost:hover { border-color: var(--accent); color: var(--accent); }

/* type chips */
.chips { display: flex; gap: 10px; }
.chip { flex: 1; }
.chip input { position: absolute; opacity: 0; }
.chip label {
  display: block; text-align: center; padding: 16px; border-radius: 12px; cursor: pointer;
  border: 1px solid var(--line); background: var(--bg); transition: .15s;
}
.chip label .t { font-weight: 600; font-size: 15px; }
.chip label .d { font-size: 12px; color: var(--muted); margin-top: 4px; font-family: 'IBM Plex Mono', monospace; }
.chip input:checked + label { border-color: var(--accent); background: rgba(200,245,96,.08); }
.chip input:checked + label .t { color: var(--accent); }

/* result box */
.result { margin-top: 20px; background: var(--bg); border: 1px dashed var(--line);
  border-radius: 12px; padding: 18px; }
.result .keys { font-family: 'IBM Plex Mono', monospace; font-size: 14px; line-height: 2;
  max-height: 320px; overflow: auto; color: var(--accent); }
.result .head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }

/* table */
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); }
th { font-family: 'IBM Plex Mono', monospace; color: var(--muted); text-transform: uppercase;
  font-size: 11px; letter-spacing: 1px; }
td.key { font-family: 'IBM Plex Mono', monospace; color: var(--text); }
.badge { font-family: 'IBM Plex Mono', monospace; font-size: 11px; padding: 4px 10px;
  border-radius: 20px; display: inline-block; }
.badge.unused { background: rgba(94,224,160,.12); color: var(--ok); }
.badge.used { background: rgba(125,134,148,.15); color: var(--muted); }
.badge.disabled { background: rgba(255,107,107,.12); color: var(--danger); }
.badge.day { background: rgba(200,245,96,.12); color: var(--accent); }
.badge.week { background: rgba(255,180,84,.12); color: var(--accent-2); }
.badge.month { background: rgba(94,224,160,.12); color: var(--ok); }

/* login */
.login-screen { min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.login-box { width: 100%; max-width: 380px; }
.login-box .panel { padding: 34px; }
.login-box .brand { justify-content: center; margin-bottom: 26px; }
.login-box .btn { width: 100%; margin-top: 6px; }
.err { color: var(--danger); font-size: 13px; font-family: 'IBM Plex Mono', monospace; margin-top: 12px; text-align: center; }

@media (max-width: 720px){ .stats{ grid-template-columns: repeat(2,1fr);} }