:root {
  --bg: #f6f7fb;
  --surface: #ffffff;
  --ink: #14161c;
  --muted: #6b7280;
  --faint: #9aa1ad;
  --line: #e8eaf1;
  --line-2: #eef0f6;
  --brand: #4d2e7f;
  --brand-ink: #3b2463;
  --brand-2: #6b3fae;
  --brand-soft: #f1ecf8;
  --ok: #5f9e1c;
  --ok-soft: #eef6e1;
  --amber: #b7791f;
  --amber-soft: #fdf3e2;
  --danger: #d1435b;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 2px rgba(16,24,40,.06), 0 1px 3px rgba(16,24,40,.05);
  --shadow-md: 0 6px 20px rgba(20,22,40,.08), 0 2px 6px rgba(20,22,40,.05);
  --shadow-lg: 0 18px 40px rgba(30,25,90,.14);
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
h1 { font-size: 26px; font-weight: 800; letter-spacing: -0.02em; margin: 0; }
.sub { color: var(--muted); margin: 6px 0 0; font-size: 14.5px; }

/* ---------- Brand ---------- */
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-logo { width: 30px; height: 30px; object-fit: contain; display: block; }
.brand-name { font-weight: 700; letter-spacing: -0.01em; color: var(--ink); }
.brand-name b { font-weight: 800; color: var(--brand); }
.brand-lg .brand-logo { width: 42px; height: 42px; }
.brand-lg .brand-name { font-size: 18px; }

/* ---------- Top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 28px;
  background: rgba(255,255,255,.85);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.topbar-right { display: flex; align-items: center; gap: 14px; }
.nav-link { color: var(--muted); font-weight: 600; padding: 7px 12px; border-radius: 9px; }
.nav-link:hover { color: var(--brand); background: var(--brand-soft); }
.user-chip {
  color: var(--muted); font-size: 13px; font-weight: 500;
  background: var(--line-2); padding: 6px 12px; border-radius: 999px;
}

/* ---------- Buttons ---------- */
.btn-primary {
  font: inherit; font-weight: 700; color: #fff; cursor: pointer;
  border: none; padding: 11px 18px; border-radius: 11px;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  box-shadow: 0 6px 16px rgba(77,46,127,.32);
  transition: transform .06s, box-shadow .15s, filter .15s;
}
.btn-primary:hover { filter: brightness(1.05); box-shadow: 0 8px 22px rgba(77,46,127,.4); }
.btn-primary:active { transform: translateY(1px); }
.btn-ghost {
  font: inherit; font-weight: 600; cursor: pointer; color: #384150;
  background: #fff; border: 1px solid var(--line);
  padding: 8px 14px; border-radius: 10px; box-shadow: var(--shadow-sm);
  transition: background .12s, border-color .12s;
}
.btn-ghost:hover { background: #f8f9fc; border-color: #d6dae4; }
.btn-ghost.sm { padding: 6px 11px; font-size: 13px; }
.btn-ghost.danger:hover { color: var(--danger); border-color: #f0c2ca; background: #fdf2f4; }

/* ---------- Layout ---------- */
.container { max-width: 1120px; margin: 0 auto; padding: 34px 28px 70px; }
.page-head { margin-bottom: 24px; }

/* ---------- Tool grid ---------- */
.grid {
  display: grid; gap: 18px;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}
.tile {
  position: relative; display: flex; flex-direction: column;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 22px 20px 18px;
  box-shadow: var(--shadow-sm);
  transition: transform .14s ease, box-shadow .14s ease, border-color .14s ease;
  overflow: hidden;
}
.tile::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: linear-gradient(90deg, var(--brand), var(--brand-2));
  opacity: 0; transition: opacity .14s;
}
.tile.is-dl::before { background: linear-gradient(90deg, var(--ok), #34d399); }
.tile:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: #dfe2ee; }
.tile:hover::before { opacity: 1; }
.tile-icon {
  width: 52px; height: 52px; border-radius: 14px; margin-bottom: 14px;
  display: grid; place-items: center; font-size: 27px;
  background: var(--brand-soft);
}
.tile.is-dl .tile-icon { background: var(--ok-soft); }
.tile-name { font-weight: 700; font-size: 16px; letter-spacing: -0.01em; }
.tile-desc { color: var(--muted); font-size: 13.5px; margin-top: 5px; flex: 1; }
.tile-cta {
  margin-top: 16px; font-weight: 700; font-size: 13.5px; color: var(--brand);
  display: inline-flex; align-items: center; gap: 6px;
}
.tile.is-dl .tile-cta { color: var(--ok); }
.tile .arrow { transition: transform .14s; }
.tile:hover .arrow { transform: translateX(3px); }
.tile.is-dl:hover .arrow { transform: translateY(2px); }
.empty { color: var(--muted); padding: 30px 0; }

/* ---------- Auth pages ---------- */
.auth {
  min-height: 100vh; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 16px; padding: 24px;
  background:
    radial-gradient(1100px 500px at 50% -10%, #eceafe 0%, rgba(236,234,254,0) 60%),
    var(--bg);
}
.auth-card {
  width: 100%; max-width: 400px; background: var(--surface);
  border: 1px solid var(--line); border-radius: 18px;
  padding: 30px 30px 34px; box-shadow: var(--shadow-lg);
}
.auth-card .brand-lg { margin-bottom: 18px; }
.auth-card h1 { font-size: 22px; }
.auth-foot { color: var(--faint); font-size: 12.5px; }

/* ---------- Forms ---------- */
.form { margin-top: 18px; display: flex; flex-direction: column; gap: 14px; }
.form label, .form-row label, .form-grid label {
  display: flex; flex-direction: column; gap: 6px;
  font-size: 13px; font-weight: 600; color: #414855;
}
input, select, textarea {
  font: inherit; font-weight: 500; color: var(--ink);
  padding: 11px 13px; border: 1px solid #d9dde7; border-radius: 11px;
  background: #fff; transition: border-color .12s, box-shadow .12s;
}
input::placeholder { color: #aab0bd; font-weight: 400; }
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--brand);
  box-shadow: 0 0 0 4px rgba(77,46,127,.14);
}
.form .btn-primary { margin-top: 4px; }
.alert {
  background: #fdf2f4; color: #a3364a; border: 1px solid #f3ccd4;
  padding: 10px 13px; border-radius: 10px; font-size: 13.5px; font-weight: 500;
  margin-bottom: 4px;
}

/* ---------- Tabs ---------- */
.tabs { display: flex; gap: 6px; margin-bottom: 18px; border-bottom: 1px solid var(--line); }
.tab {
  padding: 10px 14px; font-weight: 600; color: var(--muted);
  border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.tab:hover { color: var(--ink); }
.tab.active { color: var(--brand); border-bottom-color: var(--brand); }

/* ---------- Panels & admin forms ---------- */
.panel {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow-sm);
  margin-bottom: 22px;
}
.form-row { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 14px; }
.form-row label { flex: 1; min-width: 180px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 16px; align-items: end; }
.form-grid .wide { grid-column: 1 / -1; }
.form-grid .form-actions { grid-column: 1 / -1; }
.check { flex-direction: row !important; align-items: center; gap: 8px !important; font-weight: 600; }
.check input { width: auto; }

/* ---------- Data tables ---------- */
.data {
  width: 100%; border-collapse: separate; border-spacing: 0;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm);
}
.data thead th {
  text-align: left; padding: 12px 16px; background: #f8f9fc;
  font-size: 11.5px; font-weight: 700; letter-spacing: .04em;
  text-transform: uppercase; color: var(--faint);
  border-bottom: 1px solid var(--line);
}
.data tbody td { padding: 13px 16px; border-bottom: 1px solid var(--line-2); font-weight: 500; }
.data tbody tr:last-child td { border-bottom: none; }
.data tbody tr:hover { background: #fafbff; }
.data .right { text-align: right; }
.data .ico { font-size: 20px; width: 42px; }
.data .muted { color: var(--muted); }
.data .mono { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 12.5px; }

/* ---------- Badges ---------- */
.badge {
  display: inline-block; padding: 3px 10px; border-radius: 999px;
  font-size: 11.5px; font-weight: 700; letter-spacing: .01em;
}
.badge-admin { background: var(--brand-soft); color: var(--brand-ink); }
.badge-ok { background: var(--ok-soft); color: var(--ok); }
.badge-off { background: #f1f2f5; color: var(--faint); }
.badge-web { background: var(--brand-soft); color: var(--brand-ink); }
.badge-dl { background: var(--ok-soft); color: var(--ok); }

::selection { background: rgba(77,46,127,.18); }

@media (max-width: 620px) {
  .topbar { padding: 12px 16px; }
  .user-chip { display: none; }
  .container { padding: 24px 16px 60px; }
  .form-grid { grid-template-columns: 1fr; }
}