/* Overlord design system — dark "command center". */
:root {
  --bg: #0a0e16;
  --bg-elev: #121826;
  --bg-card: #151c2c;
  --border: #232c40;
  --border-soft: #1c2435;
  --text: #e6ebf5;
  --muted: #8a97b1;
  --accent: #4f8cff;
  --accent-hover: #6ba0ff;
  --ok: #3ad29f;
  --warn: #f5b454;
  --danger: #ff5d6c;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 10px 34px rgba(0, 0, 0, .38);
  --gap: 1.4rem;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, system-ui, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", Menlo, Consolas, monospace;
}

[data-theme="light"] {
  --bg: #eef1f7;
  --bg-elev: #ffffff;
  --bg-card: #ffffff;
  --border: #d8deea;
  --border-soft: #e6eaf2;
  --text: #1a2233;
  --muted: #5d6679;
  --shadow: 0 6px 22px rgba(20, 30, 60, .09);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  background:
    radial-gradient(1100px 560px at 82% -12%, #16223b 0%, transparent 62%),
    var(--bg);
  background-attachment: fixed;
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; transition: color .15s ease; }
a:hover { color: var(--accent-hover); }
code { font-family: var(--mono); font-size: .92em; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.mono { font-family: var(--mono); }
h1, h2, h3 { letter-spacing: -.01em; }

/* Topbar */
.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: .7rem 1.5rem;
  background: color-mix(in srgb, var(--bg-elev) 82%, transparent);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
  position: sticky; top: 0; z-index: 20;
}
.brand { font-weight: 700; letter-spacing: .2px; font-size: 1.12rem; display: flex; align-items: center; gap: .5rem; }
.brand-mark { filter: saturate(1.3); }
.topnav { display: flex; align-items: center; gap: .25rem; flex-wrap: wrap; }
.topnav a {
  color: var(--muted); font-weight: 500; font-size: .92rem;
  padding: .4rem .65rem; border-radius: var(--radius-sm); transition: background .15s ease, color .15s ease;
}
.topnav a:hover { color: var(--text); background: rgba(127, 150, 200, .1); }
.topnav a.active { color: var(--text); background: color-mix(in srgb, var(--accent) 16%, transparent); }
.inline { display: inline; margin: 0; }

/* Layout — uniform vertical rhythm for every top-level section */
.container {
  max-width: 1140px; margin: 0 auto; padding: 1.8rem 1.4rem 3rem;
  display: flex; flex-direction: column; gap: var(--gap);
}
.page-head h1 { margin: 0 0 .3rem; font-size: 1.62rem; }
.page-head p { margin: 0; }
.page-head .btn, .page-head form { margin-top: .7rem; }
.grid { display: grid; gap: 1.15rem; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }

/* Cards */
.card {
  background: linear-gradient(180deg, var(--bg-card), var(--bg-elev));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem 1.45rem;
  box-shadow: var(--shadow);
}
.card-title {
  margin: 0 0 1rem; font-size: 1.05rem; font-weight: 600;
  padding-bottom: .65rem; border-bottom: 1px solid var(--border-soft);
  display: flex; align-items: center; justify-content: space-between; gap: .5rem;
}

/* Auth */
.auth-wrap { min-height: 72vh; display: grid; place-items: center; }
.auth-card { width: 100%; max-width: 390px; }
.auth-title { margin: 0 0 .25rem; font-size: 1.55rem; }

/* Forms */
label { display: block; margin: .9rem 0 .35rem; font-size: .9rem; color: var(--muted); }
input[type=text], input[type=password], input[type=number] {
  width: 100%; padding: .68rem .8rem;
  background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--radius-sm); font-size: 1rem;
  transition: border-color .15s ease, box-shadow .15s ease;
}
input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(79, 140, 255, .18); }
.row { display: flex; gap: .6rem; align-items: center; flex-wrap: wrap; margin-top: .9rem; }
.row input[type=text], .row input[type=password] { width: auto; flex: 1 1 190px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: .4rem; cursor: pointer;
  padding: .62rem 1.05rem; border-radius: var(--radius-sm); font-size: .92rem; font-weight: 600;
  background: var(--bg-elev); color: var(--text); border: 1px solid var(--border);
  transition: border-color .15s ease, background .15s ease, transform .05s ease;
}
.btn:hover { border-color: var(--accent); }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #07101f; }
.btn-primary:hover { background: var(--accent-hover); color: #07101f; }
.btn-danger { color: var(--danger); border-color: rgba(255, 93, 108, .4); }
.btn-danger:hover { background: rgba(255, 93, 108, .12); border-color: var(--danger); }
.btn-ghost { background: transparent; }
.btn-block { width: 100%; justify-content: center; margin-top: 1.2rem; }
.btn-sm { padding: .38rem .72rem; font-size: .82rem; }
.btn:disabled { opacity: .45; cursor: not-allowed; }

/* Alerts */
.alert { padding: .75rem .95rem; border-radius: var(--radius-sm); margin: 0 0 .9rem; font-size: .92rem; border: 1px solid; }
.alert:last-child { margin-bottom: 0; }
.alert-error { background: rgba(255, 93, 108, .1); border-color: rgba(255, 93, 108, .4); color: #ffb3bb; }
.alert-ok { background: rgba(58, 210, 159, .1); border-color: rgba(58, 210, 159, .4); color: #9ff0d3; }
.alert-warn { background: rgba(245, 180, 84, .1); border-color: rgba(245, 180, 84, .4); color: #ffd89b; }

/* Status dots */
.dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: .45rem; flex: none; }
.dot-ok { background: var(--ok); box-shadow: 0 0 8px var(--ok); }
.dot-warn { background: var(--warn); box-shadow: 0 0 8px var(--warn); }
.dot-danger { background: var(--danger); box-shadow: 0 0 8px var(--danger); }

/* Misc */
.steps { color: var(--muted); padding-left: 1.2rem; margin: 0 0 .4rem; }
.qr { background: #fff; padding: 12px; border-radius: var(--radius-sm); width: max-content; margin: 1rem 0; }
.qr svg { display: block; width: 200px; height: 200px; }
.codes { list-style: none; padding: 0; margin: .4rem 0 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: .45rem; }
.codes code { background: var(--bg); padding: .45rem .6rem; border-radius: 6px; border: 1px solid var(--border); display: block; text-align: center; }

/* Group heading (sits between sections; container gap handles spacing) */
.group-title { font-size: .82rem; color: var(--muted); text-transform: uppercase; letter-spacing: .1em; margin: .4rem 0 -.4rem; font-weight: 600; }

/* Units / services */
.unit-card { display: flex; flex-direction: column; gap: .55rem; }
.unit-head { display: flex; align-items: center; gap: .5rem; font-size: 1.06rem; }
.kv { width: 100%; border-collapse: collapse; font-size: .88rem; }
.kv td { padding: .26rem 0; vertical-align: top; }
.kv td:first-child { color: var(--muted); width: 40%; }
.unit-actions { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: .55rem; }
.logbox {
  background: #05080f; border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 1rem; height: 58vh; overflow: auto; white-space: pre-wrap; word-break: break-word;
  font-family: var(--mono); font-size: .82rem; color: #cbd6ec; line-height: 1.5;
}
[data-theme="light"] .logbox { background: #0a0e16; }

/* Stat row + tiles */
.stat-row { display: grid; gap: 1.15rem; grid-template-columns: repeat(auto-fit, minmax(155px, 1fr)); }
.stat { padding: 1.05rem 1.15rem; }
.stat-label { color: var(--muted); font-size: .76rem; text-transform: uppercase; letter-spacing: .07em; }
.stat-val { font-size: 1.7rem; font-weight: 700; margin: .3rem 0; line-height: 1.1; }
.stat-val.small { font-size: 1.1rem; font-weight: 600; }
.bar { background: var(--bg); border-radius: 6px; height: 8px; overflow: hidden; margin: .4rem 0 .2rem; }
.bar i { display: block; height: 100%; width: 0; background: var(--accent); transition: width .4s ease; border-radius: 6px; }
.bar i.ok { background: var(--ok); }
.bar i.warn { background: var(--warn); }
.bar i.crit { background: var(--danger); }
.stat-tiles { display: grid; gap: .7rem; grid-template-columns: repeat(auto-fit, minmax(125px, 1fr)); }
.stat-tile { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: .65rem .8rem; }
.stat-tile-val { font-size: 1.35rem; font-weight: 700; margin-top: .2rem; }

/* Disks */
.disk { margin-bottom: .9rem; }
.disk:last-child { margin-bottom: 0; }
.disk-head { display: flex; justify-content: space-between; font-size: .85rem; margin-bottom: .3rem; }

/* Tables */
.proc-table { width: 100%; border-collapse: collapse; font-size: .87rem; }
.proc-table th { text-align: left; color: var(--muted); font-weight: 600; font-size: .76rem; text-transform: uppercase; letter-spacing: .04em; border-bottom: 1px solid var(--border); padding: .5rem .55rem; }
.proc-table td { padding: .55rem .55rem; border-bottom: 1px solid var(--border-soft); }
.proc-table tbody tr:last-child td { border-bottom: none; }
.proc-table tbody tr { transition: background .12s ease; }
.proc-table tbody tr:hover { background: rgba(127, 150, 200, .06); }
canvas { max-width: 100%; }

/* God-view */
.health-banner {
  display: flex; align-items: center; gap: .65rem;
  padding: 1rem 1.2rem; border-radius: var(--radius);
  border: 1px solid var(--border); font-weight: 600; font-size: 1.06rem;
}
.health-ok { background: rgba(58, 210, 159, .08); border-color: rgba(58, 210, 159, .35); }
.health-warning { background: rgba(245, 180, 84, .08); border-color: rgba(245, 180, 84, .35); }
.health-critical { background: rgba(255, 93, 108, .1); border-color: rgba(255, 93, 108, .45); animation: pulse 1.6s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { box-shadow: 0 0 0 0 rgba(255, 93, 108, .35); } 50% { box-shadow: 0 0 0 7px rgba(255, 93, 108, 0); } }
.dot-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .55rem .9rem; }
.dot-grid > div { display: flex; align-items: center; }
.game-card { display: flex; flex-direction: column; gap: .55rem; }

@media (max-width: 640px) {
  .container { padding: 1.2rem 1rem 2.4rem; }
  .topbar { padding: .6rem 1rem; }
  .topnav { gap: .1rem; }
  .topnav a { padding: .35rem .5rem; font-size: .88rem; }
  .codes { grid-template-columns: 1fr; }
  .dot-grid { grid-template-columns: 1fr; }
  .page-head h1 { font-size: 1.4rem; }
}