:root {
  --bg: #0b0e14;
  --bg-gradient: radial-gradient(1200px 600px at 80% -10%, rgba(99, 102, 241, 0.14), transparent 60%),
                 radial-gradient(800px 400px at 0% 0%, rgba(236, 72, 153, 0.08), transparent 55%);
  --panel: #11151f;
  --panel-2: #151a26;
  --border: #1f2634;
  --border-soft: #1a2030;
  --text: #edeff6;
  --text-2: #aab2c5;
  --muted: #6b7488;
  --accent: #6366f1;
  --accent-2: #8b5cf6;
  --accent-grad: linear-gradient(135deg, #6366f1, #8b5cf6);
  --accent-soft: rgba(99, 102, 241, 0.14);
  --pink: #ec4899;
  --cyan: #22d3ee;
  --ok: #34d399;
  --ok-soft: rgba(52, 211, 153, 0.12);
  --warn: #fbbf24;
  --danger: #f87171;
  --danger-soft: rgba(248, 113, 113, 0.12);
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px -12px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 24px 60px -20px rgba(0, 0, 0, 0.6);
}

* { box-sizing: border-box; }

html { color-scheme: dark; }

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  background-image: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text);
  line-height: 1.55;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

::selection { background: rgba(99, 102, 241, 0.35); }

a { color: inherit; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 28px;
  background: rgba(11, 14, 20, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.2px;
  color: var(--text);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: var(--accent-grad);
  box-shadow: 0 4px 14px -4px rgba(99, 102, 241, 0.6);
}

.topbar nav { display: flex; align-items: center; gap: 6px; }

.topbar nav a {
  color: var(--muted);
  text-decoration: none;
  padding: 7px 14px;
  border-radius: 9px;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.15s, background 0.15s;
}
.topbar nav a:hover { color: var(--text); background: rgba(255, 255, 255, 0.04); }
.topbar nav a.active { color: var(--text); background: var(--accent-soft); }

main { max-width: 1120px; margin: 32px auto; padding: 0 24px; }

.card {
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 22px;
  box-shadow: var(--shadow);
}

h1 { margin: 0 0 8px; font-size: 22px; font-weight: 700; letter-spacing: -0.3px; }
h2 {
  margin: 0 0 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.2px;
}
.card > h2 { display: flex; align-items: center; gap: 8px; }

.muted { color: var(--muted); font-size: 13px; }
.text-2 { color: var(--text-2); }

/* ---------- Login ---------- */
.login {
  max-width: 400px;
  margin: 80px auto;
  padding: 32px;
  text-align: left;
}
.login .brand { margin-bottom: 8px; font-size: 20px; }
.login p { margin: 0 0 22px; color: var(--muted); }
.login input { width: 100%; }
.login button { width: 100%; margin-top: 6px; }

/* ---------- Forms ---------- */
label {
  display: flex;
  flex-direction: column;
  gap: 7px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-2);
}
label.grow { flex: 1 1 260px; }
label span { letter-spacing: 0.2px; }

input {
  background: #0d1120;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 11px 14px;
  font-size: 14px;
  min-width: 0;
  transition: border-color 0.15s, box-shadow 0.15s;
}
input::placeholder { color: var(--muted); }
input:hover { border-color: #2b3548; }
input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

button {
  background: var(--panel-2);
  color: var(--text-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 11px 18px;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: transform 0.1s, box-shadow 0.15s, border-color 0.15s, color 0.15s;
}
button:hover:not(:disabled) { border-color: #2f3a52; color: var(--text); }
button:active:not(:disabled) { transform: translateY(1px); }
button:disabled { opacity: 0.5; cursor: not-allowed; }
button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

button.primary {
  background: var(--accent-grad);
  border: none;
  color: #fff;
  padding: 12px 20px;
  box-shadow: 0 6px 18px -6px rgba(99, 102, 241, 0.55);
}
button.primary:hover:not(:disabled) { color: #fff; filter: brightness(1.08); }

button.danger { background: var(--danger-soft); color: var(--danger); border-color: rgba(248, 113, 113, 0.3); }
button.danger:hover:not(:disabled) { background: rgba(248, 113, 113, 0.2); color: var(--danger); }

button.copy-btn {
  background: transparent;
  color: var(--muted);
  border-color: var(--border);
  padding: 7px 11px;
  font-size: 12px;
  font-weight: 600;
}
button.copy-btn:hover:not(:disabled) { color: var(--text); border-color: #2f3a52; }

.hidden { display: none !important; }

.error {
  color: var(--danger);
  background: var(--danger-soft);
  border: 1px solid rgba(248, 113, 113, 0.25);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  margin-top: 14px;
  font-size: 13px;
}
.success {
  color: var(--ok);
  background: var(--ok-soft);
  border: 1px solid rgba(52, 211, 153, 0.25);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  margin-top: 14px;
  font-size: 13px;
}

.row { display: flex; gap: 14px; align-items: flex-end; flex-wrap: wrap; }
.row.between { justify-content: space-between; align-items: center; }
.row.between h2 { margin: 0; }

.create .row { align-items: flex-end; }
.create button { white-space: nowrap; }

/* ---------- Stats ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 16px;
  margin-bottom: 22px;
}
.stat {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow);
}
.stat::after {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 4px;
  height: 100%;
  background: var(--accent-grad);
  opacity: 0.9;
}
.stat-num {
  display: block;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
  font-variant-numeric: tabular-nums;
  margin-bottom: 2px;
}
.stat-label { color: var(--muted); font-size: 13px; font-weight: 500; }

/* ---------- Grid ---------- */
.grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 22px; }
.grid > .card { margin-bottom: 0; }
@media (max-width: 900px) { .grid { grid-template-columns: 1fr; } }

/* ---------- Tables ---------- */
.table-scroll { overflow-x: auto; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }

th {
  text-align: left;
  color: var(--muted);
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

td {
  padding: 13px 12px;
  border-bottom: 1px solid var(--border-soft);
  vertical-align: middle;
  white-space: nowrap;
}

tbody tr { transition: background 0.12s; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: rgba(99, 102, 241, 0.05); }

.dest {
  color: var(--text-2);
  max-width: 240px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.short-url {
  color: var(--accent-2);
  text-decoration: none;
  font-weight: 600;
}
.short-url:hover { text-decoration: underline; color: var(--accent); }

td .actions { display: flex; gap: 8px; justify-content: flex-end; }

/* ---------- Chart ---------- */
canvas { width: 100%; }

/* ---------- Empty states ---------- */
.empty {
  color: var(--muted);
  font-size: 14px;
  text-align: center;
  padding: 22px 10px;
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
}

@media (max-width: 640px) {
  main { padding: 0 14px; margin-top: 20px; }
  .topbar { padding: 10px 14px; }
  .create .row { align-items: stretch; }
  .create button { width: 100%; }
}