:root {
  --bg: #0e1220; --card: #171d2e; --text: #eef1f7; --muted: #8b95af;
  --accent: #4f8cff; --accent-2: #6ee7b7; --danger: #ff5d6c; --warn: #f4b740;
  --border: #262d42;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: system-ui, 'Segoe UI', sans-serif; line-height: 1.5; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.mono { font-family: ui-monospace, 'Cascadia Code', monospace; }
.error { color: var(--danger); min-height: 1.2em; margin: 8px 0 0; }
h1 { font-size: 1.5rem; margin: 0 0 20px; } h2 { font-size: 1.05rem; margin: 0 0 14px; }

.card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 22px; margin-bottom: 22px; }

input, select, button { font: inherit; border-radius: 10px; border: 1px solid var(--border); background: var(--bg); color: var(--text); padding: 9px 13px; }
input:focus, select:focus { outline: none; border-color: var(--accent); }
button { background: var(--accent); border: none; cursor: pointer; font-weight: 600; }
button.ghost { background: transparent; border: 1px solid var(--border); }
button.small { padding: 6px 11px; font-size: .82rem; }
button.danger { color: var(--danger); border-color: var(--danger); }

/* Login */
.login { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.login .card { width: 340px; text-align: center; }
.login input, .login button { width: 100%; margin-top: 12px; }

/* App shell */
.app { display: grid; grid-template-columns: 230px 1fr; min-height: 100vh; }
.sidebar { background: #101524; border-right: 1px solid var(--border); padding: 22px 16px; display: flex; flex-direction: column; }
.logo { font-size: 1.3rem; font-weight: 800; margin-bottom: 26px; }
nav { display: flex; flex-direction: column; gap: 6px; flex: 1; }
.nav-item { text-align: left; background: transparent; border: none; color: var(--muted); padding: 11px 14px; border-radius: 10px; cursor: pointer; font-weight: 600; }
.nav-item:hover { color: var(--text); background: rgba(255,255,255,.04); }
.nav-item.active { color: var(--text); background: rgba(79,140,255,.16); }
.me { border-top: 1px solid var(--border); padding-top: 16px; margin-top: 16px; }
.me-name { font-weight: 600; font-size: .9rem; }
.me-credits { color: var(--accent-2); font-size: .85rem; margin: 4px 0 10px; }
.me .small { width: 100%; }
.view { padding: 32px 40px; overflow-x: auto; }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.stat { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 22px; }
.stat-val { font-size: 2rem; font-weight: 800; }
.stat-lbl { color: var(--muted); font-size: .85rem; margin-top: 4px; }

/* Forms */
.form-row { display: flex; flex-wrap: wrap; gap: 14px; align-items: end; }
.field { display: flex; flex-direction: column; gap: 6px; font-size: .8rem; color: var(--muted); }
.field input, .field select { min-width: 150px; }

/* Table */
table { width: 100%; border-collapse: collapse; margin-top: 6px; }
th, td { text-align: left; padding: 11px 10px; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { color: var(--muted); font-weight: 600; font-size: .8rem; text-transform: uppercase; letter-spacing: .5px; }
td.actions { display: flex; gap: 7px; flex-wrap: wrap; }
.code { font-family: ui-monospace, monospace; font-size: 1.05rem; font-weight: 700; color: var(--accent); letter-spacing: 2px; }

.badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: .75rem; font-weight: 600; }
.badge-active { background: rgba(110,231,183,.15); color: var(--accent-2); }
.badge-disabled { background: rgba(139,149,175,.15); color: var(--muted); }
.badge-expired { background: rgba(244,183,64,.15); color: var(--warn); }

@media (max-width: 800px) { .app { grid-template-columns: 1fr; } .sidebar { flex-direction: row; flex-wrap: wrap; } nav { flex-direction: row; } .stats { grid-template-columns: repeat(2, 1fr); } }