:root {
  --bg: #0b0d11;
  --panel: #14161c;
  --panel-2: #1a1d24;
  --panel-hover: #1f232b;
  --border: #262a33;
  --border-soft: #1d2028;
  --text: #e8eaed;
  --muted: #8b93a1;
  --accent: #5865f2;
  --accent-hover: #4752c4;
  --accent-soft: rgba(88, 101, 242, 0.16);
  --ok: #3ba55d;
  --warn: #e6a53a;
  --danger: #ed4245;
  --radius: 6px;
  --radius-sm: 4px;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.25), 0 6px 20px -6px rgba(0, 0, 0, 0.4);
  --content-width: min(1320px, 94vw);
}

* { box-sizing: border-box; }

html { background: var(--bg); }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg);
  background-image:
    linear-gradient(180deg, #12151b 0px, transparent 320px),
    radial-gradient(900px 420px at 100% 0%, rgba(88, 101, 242, 0.08), transparent);
  background-repeat: no-repeat;
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

header.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 16px clamp(16px, 4vw, 40px);
  border-bottom: 1px solid var(--border);
  background: rgba(11, 13, 17, 0.9);
  backdrop-filter: blur(10px);
}

header.topbar .brand {
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.2px;
  display: flex;
  align-items: center;
  gap: 8px;
}

header.topbar .brand::before {
  content: "";
  width: 9px;
  height: 9px;
  background: var(--accent);
  display: inline-block;
}

header.topbar .user {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--muted);
}

header.topbar .user img {
  width: 26px;
  height: 26px;
  border-radius: 50%;
}

main {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 32px clamp(16px, 4vw, 40px) 80px;
}

.page-header {
  margin-bottom: 24px;
}

.page-header h1 {
  font-size: 1.5rem;
  margin: 0 0 4px;
  letter-spacing: 0.2px;
}

.page-header p {
  color: var(--muted);
  margin: 0;
  font-size: 0.92rem;
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}

.stat {
  background: var(--panel);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  padding: 16px 18px;
}

.stat.ok { border-left-color: var(--ok); }
.stat.warn { border-left-color: var(--warn); }
.stat.danger { border-left-color: var(--danger); }

.stat .stat-value {
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1.1;
}

.stat .stat-label {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-top: 6px;
}

.hero {
  text-align: center;
  padding: clamp(48px, 12vh, 100px) 20px;
}

.hero h1 {
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  margin-bottom: 12px;
}

.hero p {
  color: var(--muted);
  max-width: 560px;
  margin: 0 auto 32px;
  line-height: 1.6;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: var(--accent);
  color: white;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
  white-space: nowrap;
}

.btn:hover { background: var(--accent-hover); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn.secondary { background: transparent; border-color: var(--border); color: var(--text); }
.btn.secondary:hover { background: var(--panel-2); border-color: #3a4050; }
.btn.danger { background: transparent; border-color: rgba(237, 66, 69, 0.4); color: var(--danger); }
.btn.danger:hover { background: rgba(237, 66, 69, 0.12); border-color: var(--danger); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(18px, 3vw, 24px);
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}

.card h2 {
  margin-top: 0;
  margin-bottom: 16px;
  font-size: 1rem;
  letter-spacing: 0.2px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.card + .card { margin-top: 0; }

.grid-form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
  align-items: end;
  margin-bottom: 4px;
}

.grid-form > button {
  grid-column: 1 / -1;
  justify-self: start;
  margin-top: 4px;
}

label {
  display: block;
  font-size: 0.78rem;
  color: var(--muted);
  margin-bottom: 6px;
}

input, textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  font-size: 0.9rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

input[type="file"] {
  padding: 8px;
  cursor: pointer;
}

#servers, #versions {
  overflow-x: auto;
}

table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 0.87rem;
}

th, td {
  text-align: left;
  padding: 12px 10px;
  border-bottom: 1px solid var(--border-soft);
  white-space: nowrap;
}

th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border);
}

tbody tr {
  transition: background-color 0.12s ease;
}

tbody tr:hover {
  background: var(--panel-hover);
}

tbody tr:last-child td {
  border-bottom: none;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  border-radius: var(--radius-sm);
  font-size: 0.72rem;
  font-weight: 600;
  white-space: nowrap;
}

.badge::before {
  content: "";
  width: 6px;
  height: 6px;
  background: currentColor;
}

.badge.pending { background: rgba(230, 165, 58, 0.14); color: var(--warn); }
.badge.approved { background: rgba(59, 165, 93, 0.14); color: var(--ok); }
.badge.revoked { background: rgba(237, 66, 69, 0.14); color: var(--danger); }

.mono {
  font-family: "Cascadia Code", Consolas, monospace;
  font-size: 0.85rem;
  background: var(--panel-2);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  word-break: break-all;
  white-space: normal;
}

.muted { color: var(--muted); }
.row-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.empty { color: var(--muted); font-style: italic; padding: 12px 0; }
.notice { color: var(--muted); font-size: 0.85rem; margin-top: 10px; }
.notice.error { color: var(--danger); }
.notice.success { color: var(--ok); }

.section-gap { margin-top: 32px; }

.manage-row td { background: var(--panel-2); padding: 18px; }
.manage-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.manage-grid h3 { margin: 0 0 10px; font-size: 0.85rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.manage-grid table { min-width: 0; font-size: 0.85rem; }

@media (max-width: 640px) {
  header.topbar { padding: 14px 16px; }
  header.topbar .brand { font-size: 1rem; }
  main { padding: 24px 14px 60px; }
  .card { padding: 16px; }
  .grid-form { grid-template-columns: 1fr; }
  .row-actions { gap: 6px; }
  .btn { padding: 10px 16px; font-size: 0.88rem; }
  .stat-row { grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); }
}