:root {
  --lv-bg: #070b14;
  --lv-bg-soft: #0c1220;
  --lv-surface: #101827;
  --lv-ink: #f3f6fb;
  --lv-muted: #9aa6b5;
  --lv-line: rgba(255, 255, 255, 0.09);
  --lv-orange: #f97316;
  --lv-orange-deep: #ea580c;
  --lv-teal: #2dd4bf;
  --lv-green: #34d399;
  --lv-danger: #f87171;
  --lv-radius: 14px;
  --font: "Manrope", "Segoe UI", system-ui, sans-serif;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  min-height: 100dvh;
  font-family: var(--font);
  color: var(--lv-ink);
  background:
    radial-gradient(900px 520px at 8% -8%, rgba(249, 115, 22, 0.14), transparent 60%),
    radial-gradient(720px 460px at 96% 4%, rgba(45, 212, 191, 0.06), transparent 55%),
    var(--lv-bg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: var(--lv-teal); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 2px; }

.brand {
  margin: 0;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--lv-muted);
  font-weight: 700;
}
.brand span { color: var(--lv-orange); }

.top {
  border-bottom: 1px solid var(--lv-line);
  background: rgba(7, 11, 20, 0.72);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 10;
}
.top-inner {
  max-width: 980px;
  margin: 0 auto;
  padding: 1.1rem 20px;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  justify-content: space-between;
}
.tag { margin: 0.35rem 0 0; color: var(--lv-muted); font-size: 0.95rem; }
.top-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }

.shell {
  max-width: 980px;
  margin: 0 auto;
  padding: 1.5rem 20px 4rem;
  display: grid;
  gap: 1.5rem;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.75rem;
}
.stat {
  padding: 1rem 1.1rem;
  border: 1px solid var(--lv-line);
  border-radius: var(--lv-radius);
  background: rgba(16, 24, 39, 0.72);
}
.stat .k { display: block; color: var(--lv-muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; }
.stat .v { display: block; margin-top: 0.35rem; font-size: 1.45rem; font-weight: 800; }

.block {
  border-top: 1px solid var(--lv-line);
  padding-top: 1.25rem;
}
.block-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.9rem;
}
.block h2 { margin: 0; font-size: 1.25rem; font-weight: 800; }

.stack { display: grid; gap: 0.65rem; }
.item {
  display: grid;
  gap: 0.35rem;
  padding: 0.95rem 1rem;
  border: 1px solid var(--lv-line);
  border-radius: var(--lv-radius);
  background: rgba(16, 24, 39, 0.55);
}
.item-head {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: baseline;
}
.item h3 { margin: 0; font-size: 1.05rem; }
.item .meta { color: var(--lv-muted); font-size: 0.9rem; }
.item .actions { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.price { color: var(--lv-green); font-weight: 700; }
.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--lv-line);
  font-size: 0.75rem;
  color: var(--lv-muted);
}
.badge.on { color: var(--lv-green); border-color: rgba(52, 211, 153, 0.35); }
.badge.off { color: var(--lv-danger); border-color: rgba(248, 113, 113, 0.35); }

.btn {
  border: 1px solid var(--lv-line);
  border-radius: 10px;
  padding: 0.55rem 0.9rem;
  background: transparent;
  color: var(--lv-ink);
}
.btn.primary {
  background: linear-gradient(180deg, var(--lv-orange), var(--lv-orange-deep));
  border-color: transparent;
  color: #fff;
  font-weight: 700;
}
.btn.soft { background: rgba(255,255,255,0.04); }
.btn.danger { color: var(--lv-danger); border-color: rgba(248,113,113,0.35); }
.btn:disabled { opacity: 0.55; cursor: wait; }

.settings, .dialog-form, .login-form {
  display: grid;
  gap: 0.85rem;
  max-width: 560px;
}
label { display: grid; gap: 0.35rem; color: var(--lv-muted); font-size: 0.9rem; }
input[type="text"], input[type="password"], input[type="number"] {
  width: 100%;
  padding: 0.7rem 0.8rem;
  border-radius: 10px;
  border: 1px solid var(--lv-line);
  background: rgba(0,0,0,0.25);
  color: var(--lv-ink);
}
fieldset {
  border: 1px solid var(--lv-line);
  border-radius: var(--lv-radius);
  padding: 0.85rem 1rem;
}
legend { padding: 0 0.35rem; color: var(--lv-muted); }
.checks { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 0.45rem; }
.check { display: flex; align-items: center; gap: 0.5rem; color: var(--lv-ink); }
.row { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.msg { color: var(--lv-teal); margin: 0; }
.error { color: var(--lv-danger); margin: 0; }
.empty { color: var(--lv-muted); padding: 0.5rem 0; }

dialog {
  border: 1px solid var(--lv-line);
  border-radius: calc(var(--lv-radius) + 4px);
  background: var(--lv-surface);
  color: var(--lv-ink);
  padding: 1.25rem;
  width: min(480px, calc(100vw - 2rem));
}
dialog::backdrop { background: rgba(0,0,0,0.55); }
.dialog-form h3 { margin: 0 0 0.4rem; }

.login-body {
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
}
.login-shell {
  width: min(420px, 100%);
  animation: rise 0.45s ease both;
}
.login-shell h1 {
  margin: 0.7rem 0 0.35rem;
  font-size: clamp(2rem, 5vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
}
.lede { color: var(--lv-muted); margin: 0 0 1.25rem; }

@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}

@media (max-width: 640px) {
  .top-inner { flex-direction: column; }
  .item-head { flex-direction: column; align-items: flex-start; }
}