:root {
  --bg: #000; --panel: #0c0c0f; --panel-2: #121216;
  --fg: #f4f4f6; --muted: #9a9aa4; --faint: #61616b;
  --line: rgba(255,255,255,0.10); --line-2: rgba(255,255,255,0.20); --glow: rgba(255,255,255,0.16);
  --disp: "Space Grotesk", sans-serif; --mono: "JetBrains Mono", ui-monospace, monospace;
  --ease: cubic-bezier(0.22,1,0.36,1);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
/* the hidden attribute must always win over class-based display rules (e.g. .login) */
[hidden] { display: none !important; }
body { font-family: "Inter", system-ui, sans-serif; background: var(--bg); color: var(--fg); min-height: 100vh; line-height: 1.5; -webkit-font-smoothing: antialiased; }
.mark { width: 22px; height: 22px; color: #fff; fill: currentColor; }
::selection { background: #fff; color: #000; }

/* buttons */
.btn { font-family: var(--disp); font-weight: 600; font-size: 15px; border: 1px solid transparent; border-radius: 999px; padding: 12px 22px; cursor: pointer; transition: transform 0.2s var(--ease), box-shadow 0.3s, background 0.25s, color 0.25s, border-color 0.25s; }
.btn.sm { font-size: 13px; padding: 8px 14px; }
.btn.primary { background: #fff; color: #000; }
.btn.primary:hover { transform: translateY(-1px); box-shadow: 0 10px 30px var(--glow); }
.btn.ghost { background: rgba(255,255,255,0.04); color: var(--fg); border-color: var(--line-2); }
.btn.ghost:hover { border-color: #fff; }
.btn.danger { background: none; color: #ff8a8a; border-color: rgba(255,138,138,0.4); }
.btn.danger:hover { background: #ff8a8a; color: #000; }

/* login */
.login { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px; background: radial-gradient(110% 80% at 50% 0%, rgba(255,255,255,0.05), transparent 60%); }
.login-card { width: min(380px, 94vw); background: var(--panel-2); border: 1px solid var(--line); border-radius: 22px; padding: 34px 32px 36px; display: flex; flex-direction: column; gap: 14px; box-shadow: 0 50px 130px rgba(0,0,0,0.8); }
.login-brand { display: flex; align-items: center; justify-content: center; gap: 10px; font-family: var(--disp); font-weight: 700; font-size: 22px; }
.login-brand span, .brand span { color: var(--muted); font-weight: 500; }
.login-hint { text-align: center; color: var(--faint); font-size: 13px; margin-bottom: 8px; }
.login-card label, .res-form label { display: flex; flex-direction: column; gap: 7px; font-size: 12.5px; letter-spacing: 0.02em; color: var(--muted); text-transform: uppercase; }
input, select { font-family: inherit; font-size: 15px; color: var(--fg); background: rgba(255,255,255,0.03); border: 1px solid var(--line-2); border-radius: 12px; padding: 12px 14px; transition: border-color 0.25s, background 0.25s; }
input::placeholder { color: var(--faint); }
input:focus, select:focus { outline: none; border-color: #fff; background: rgba(255,255,255,0.06); }
select { cursor: pointer; }
option { background: #16161a; color: #fff; }
.err { color: #ff8a8a; font-size: 13px; }
.err:empty { display: none; }

/* topbar */
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px clamp(18px, 4vw, 40px); border-bottom: 1px solid var(--line); position: sticky; top: 0; background: rgba(0,0,0,0.7); backdrop-filter: blur(12px); z-index: 20; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-family: var(--disp); font-weight: 700; font-size: 19px; }
.topbar-right { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.role-chip { font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; background: #fff; color: #000; padding: 5px 11px; border-radius: 999px; font-weight: 700; }
.role-chip.reseller { background: rgba(255,255,255,0.1); color: #fff; border: 1px solid var(--line-2); }
.bal-chip { font-size: 13px; color: var(--muted); }
.bal-chip b { color: #fff; font-family: var(--disp); }
.user-chip { font-size: 14px; color: var(--fg); font-weight: 500; }

/* layout */
.wrap { max-width: 1100px; margin: 0 auto; padding: 28px clamp(18px, 4vw, 40px) 60px; display: grid; gap: 20px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 18px; padding: 26px; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.card h2 { font-family: var(--disp); font-size: 20px; font-weight: 600; margin-bottom: 18px; }
.card-head h2 { margin-bottom: 0; }

/* stats */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px,1fr)); gap: 14px; }
.stat { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 18px 20px; }
.stat .n { font-family: var(--disp); font-size: 30px; font-weight: 700; }
.stat .l { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; margin-top: 2px; }

/* generate */
.gen-row { display: flex; gap: 10px; flex-wrap: wrap; }
.gen-row select { flex: 1; min-width: 140px; }
.gen-result { margin-top: 18px; background: rgba(0,0,0,0.5); border: 1px solid var(--line); border-radius: 14px; padding: 18px; }
.gen-label { font-size: 11px; letter-spacing: 0.1em; color: var(--faint); text-transform: uppercase; }
.gen-key-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 8px; }
.gen-key-row code { font-family: var(--mono); font-size: 19px; letter-spacing: 0.06em; color: #fff; }
.gen-meta { font-size: 12.5px; color: var(--muted); }

/* reseller form */
.res-form { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 6px; }
.res-form input { flex: 1; min-width: 120px; }
.res-form input[type=number] { max-width: 130px; }

/* tables */
.table-wrap { overflow-x: auto; margin-top: 14px; }
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th { text-align: left; font-family: var(--mono); font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--faint); padding: 10px 12px; border-bottom: 1px solid var(--line); white-space: nowrap; }
td { padding: 12px; border-bottom: 1px solid var(--line); vertical-align: middle; }
td code { font-family: var(--mono); font-size: 13px; color: #fff; }
tr:hover td { background: rgba(255,255,255,0.02); }
.badge { font-family: var(--mono); font-size: 10.5px; font-weight: 700; padding: 4px 9px; border-radius: 999px; text-transform: uppercase; letter-spacing: 0.04em; }
.badge.unused { background: rgba(255,255,255,0.1); color: #fff; }
.badge.active { background: #fff; color: #000; }
.badge.banned { background: rgba(255,80,80,0.18); color: #ff9d9d; }
.badge.expired { background: rgba(255,255,255,0.06); color: var(--muted); }
.row-actions { display: flex; gap: 6px; flex-wrap: wrap; }

/* key stock */
.stock-counts { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.stock-pill { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); background: rgba(255,255,255,0.04); border: 1px solid var(--line); padding: 6px 12px; border-radius: 999px; }
.stock-pill b { font-family: var(--mono); color: var(--fg); }
.stock-pill.empty { border-color: rgba(255,138,138,0.4); }
.stock-pill.empty b { color: #ff8a8a; }
#stock-keys { width: 100%; margin-bottom: 10px; resize: vertical; font-family: var(--mono); font-size: 13px; background: rgba(0,0,0,0.4); color: var(--fg); border: 1px solid var(--line-2); border-radius: 12px; padding: 12px 14px; }
#stock-keys:focus { outline: none; border-color: #fff; }
.stock-actions { display: flex; justify-content: flex-end; }
.mini { font-size: 12px; padding: 6px 10px; border-radius: 8px; border: 1px solid var(--line-2); background: rgba(255,255,255,0.03); color: var(--fg); cursor: pointer; transition: background 0.2s, color 0.2s; white-space: nowrap; }
.mini:hover { background: #fff; color: #000; }
.mini.danger { color: #ff8a8a; border-color: rgba(255,138,138,0.4); }
.mini.danger:hover { background: #ff8a8a; color: #000; }
.muted { color: var(--faint); }

/* toast */
.toast { position: fixed; left: 50%; bottom: 28px; transform: translate(-50%,24px); z-index: 90; opacity: 0; pointer-events: none; font-size: 14px; color: #000; background: #fff; padding: 13px 22px; border-radius: 999px; box-shadow: 0 16px 50px rgba(0,0,0,0.6); transition: opacity 0.3s, transform 0.3s var(--ease); max-width: 90vw; }
.toast.show { opacity: 1; transform: translate(-50%,0); }