:root {
  --bg: #060a16;
  --panel: #111b35;
  --panel2: #0b1329;
  --line: #31539b;
  --text: #e6f1ff;
  --muted: #9eb9df;
  --gold: #ffe58b;
  --accent: #6ad6ff;
  --hot: #ff75cc;
  --ok: #65ffbe;
  --warn: #ffd36c;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Courier New", Courier, monospace;
  color: var(--text);
  background:
    repeating-linear-gradient(
      to bottom,
      rgba(124, 179, 255, 0.06) 0,
      rgba(124, 179, 255, 0.06) 1px,
      transparent 1px,
      transparent 4px
    ),
    radial-gradient(circle at 14% -10%, #314683, transparent 46%),
    radial-gradient(circle at 86% 116%, #46206b, transparent 44%),
    var(--bg);
  padding: 22px;
}

.app {
  width: min(1020px, 100%);
  margin: 0 auto;
  display: grid;
  gap: 14px;
}

.panel {
  border-radius: 14px;
  border: 1px solid var(--line);
  box-shadow: inset 0 0 0 1px rgba(129, 176, 255, 0.2);
  background: linear-gradient(180deg, var(--panel), var(--panel2));
}

.topbar {
  padding: 16px 18px;
}

.back {
  color: #9bd9ff;
  text-decoration: none;
  font-weight: bold;
}

.topbar h1 {
  margin: 8px 0 5px;
  color: #fff3b1;
  letter-spacing: 0.04em;
}

.topbar p {
  margin: 0;
  color: var(--muted);
}

.status {
  padding: 12px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr)) auto;
  gap: 10px;
  align-items: stretch;
}

.stat {
  border: 1px solid #345ca7;
  border-radius: 10px;
  padding: 10px;
  background: #08142d;
  display: grid;
  gap: 4px;
}

.stat span {
  color: var(--muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.stat strong {
  color: var(--gold);
  font-size: 1.18rem;
}

.diag,
.repair,
.log {
  padding: 14px;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.panel-head h2,
.repair h2,
.log h2 {
  margin: 0;
  color: #d6e9ff;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.table-wrap {
  margin-top: 10px;
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
}

th,
td {
  border: 1px solid #2f4f91;
  padding: 8px;
  text-align: left;
  font-size: 0.88rem;
}

th {
  color: #b7d6ff;
  background: #0b1835;
  text-transform: uppercase;
  font-size: 0.74rem;
  letter-spacing: 0.06em;
}

td.status-pass {
  color: var(--ok);
}

td.status-fail {
  color: var(--hot);
}

.repair-grid {
  margin-top: 10px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.repair-card {
  border: 1px solid #33579d;
  border-radius: 10px;
  padding: 10px;
  background: #0a152f;
  display: grid;
  gap: 8px;
}

.repair-card h3 {
  margin: 0;
  color: #fff0b0;
  font-size: 0.92rem;
}

.repair-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
  min-height: 36px;
}

.row {
  display: flex;
  align-items: center;
  gap: 8px;
}

select,
button {
  font: inherit;
  border-radius: 8px;
  border: 1px solid #3d65b5;
  background: #122651;
  color: var(--text);
  padding: 9px 10px;
}

select {
  width: 100%;
  min-height: 38px;
}

button {
  cursor: pointer;
  transition: filter 120ms ease, transform 80ms ease;
}

button:hover { filter: brightness(1.12); }
button:active { transform: translateY(1px); }
button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  filter: none;
}

button.primary {
  background: linear-gradient(180deg, #6b63ff, #4542d0);
  border-color: #8e91ff;
}

button.small {
  min-width: 120px;
}

.button-row {
  margin-top: 10px;
  display: flex;
  justify-content: flex-end;
}

.log ul {
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 6px;
}

.log li {
  padding: 7px 9px;
  border-radius: 8px;
  border: 1px solid #2f4f91;
  background: #08142c;
  color: #b9d6ff;
  font-size: 0.84rem;
}

.log li.ok { color: #95ffd5; }
.log li.warn { color: #ffd89a; }
.log li.err { color: #ffaccf; }

@media (max-width: 900px) {
  body { padding: 12px; }

  .status {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .repair-grid {
    grid-template-columns: 1fr;
  }

  .button-row {
    justify-content: stretch;
  }

  .button-row button {
    width: 100%;
  }
}