/* Orbital Station Simulator — dark flight-deck theme.
   Layout is single-column on phones and two-column from 900px up. */

:root {
  --bg: #070b14;
  --bg-2: #0d1424;
  --panel: #111a2e;
  --panel-2: #16223c;
  --line: #223252;
  --ink: #dbe6ff;
  --ink-dim: #8fa3c8;
  --accent: #46e0c8;
  --accent-2: #7aa2ff;
  --ok: #46e08a;
  --warn: #f0c04a;
  --bad: #ff6b6b;
  --radius: 12px;
  --shadow: 0 8px 24px rgba(0, 0, 0, .45);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html, body {
  margin: 0;
  background:
    radial-gradient(1200px 700px at 78% -12%, #16305c 0%, transparent 62%),
    radial-gradient(900px 500px at 8% 0%, #10233f 0%, transparent 55%),
    var(--bg);
  background-attachment: fixed;
  color: var(--ink);
  font: 15px/1.45 ui-sans-serif, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  min-height: 100%;
  -webkit-text-size-adjust: 100%;
}

button { font: inherit; color: inherit; cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .45; }

/* ------------------------------------------------------------- top bar */

.topbar {
  display: flex; flex-wrap: wrap; gap: 12px;
  align-items: center; justify-content: space-between;
  padding: max(10px, env(safe-area-inset-top)) 16px 10px;
  background: linear-gradient(180deg, rgba(10, 16, 30, .96), rgba(10, 16, 30, .72));
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: blur(8px);
}

.brand { display: flex; align-items: center; gap: 10px; }
.brand .logo {
  font-size: 22px; color: var(--accent);
  text-shadow: 0 0 18px rgba(70, 224, 200, .6);
}
.brand b { display: block; letter-spacing: .3px; }
.brand small { color: var(--ink-dim); font-size: 12px; }
.brand small.done { color: var(--accent); }

.clockbox { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
#clock { font-variant-numeric: tabular-nums; color: var(--ink-dim); }

.speeds { display: flex; gap: 4px; }
.speeds button {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 8px; padding: 6px 10px; font-size: 12px; color: var(--ink-dim);
}
.speeds button.active {
  background: var(--accent); border-color: var(--accent); color: #04241f; font-weight: 700;
}
.ghost {
  background: transparent; border: 1px solid var(--line);
  border-radius: 8px; padding: 6px 12px; color: var(--ink-dim); font-size: 13px;
}
.ghost:hover { color: var(--ink); border-color: var(--accent-2); }

/* ----------------------------------------------------------- resources */

.resources {
  display: grid; gap: 8px; padding: 12px 16px 4px;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}
.chip {
  display: flex; align-items: center; gap: 8px;
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 8px 10px;
}
.chip.danger { border-color: var(--bad); box-shadow: 0 0 0 1px rgba(255, 107, 107, .25) inset; }
.chip-icon { color: var(--accent-2); font-size: 16px; width: 18px; text-align: center; }
.chip-body { display: flex; flex-direction: column; line-height: 1.15; flex: 1; }
.chip-body b { font-variant-numeric: tabular-nums; }
.chip-label { font-size: 11px; color: var(--ink-dim); }
.rate { font-size: 11px; font-variant-numeric: tabular-nums; }
.rate.up { color: var(--ok); } .rate.down { color: var(--bad); } .rate.flat { color: var(--ink-dim); }

/* -------------------------------------------------------------- layout */

main {
  display: grid; gap: 14px; padding: 12px 16px 24px;
  grid-template-columns: 1fr;
  align-items: start;
}
@media (min-width: 900px) {
  main { grid-template-columns: minmax(0, 1fr) 360px; }
}

.station, .panel {
  background: linear-gradient(180deg, var(--panel), var(--bg-2));
  border: 1px solid var(--line); border-radius: 16px; box-shadow: var(--shadow);
}
.station { padding: 14px; }

/* -------------------------------------------------------------- vitals */

.vitals { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
.vital { display: grid; gap: 4px; }
.bar-label { font-size: 11px; text-transform: uppercase; letter-spacing: .8px; color: var(--ink-dim); }
.bar { display: block; height: 8px; background: #0a1120; border-radius: 99px; overflow: hidden; }
.bar-fill { display: block; height: 100%; border-radius: 99px; transition: width .3s ease; }
.bar-fill.ok { background: linear-gradient(90deg, var(--accent), var(--ok)); }
.bar-fill.warn { background: linear-gradient(90deg, var(--warn), #ffa94d); }
.bar-fill.bad { background: linear-gradient(90deg, var(--bad), #ff3d6e); }
.bar-text { font-size: 12px; color: var(--ink-dim); font-variant-numeric: tabular-nums; }

.statusline {
  display: flex; align-items: center; justify-content: space-between;
  gap: 10px; margin: 12px 0 4px; flex-wrap: wrap;
}
.flags { display: flex; gap: 6px; flex-wrap: wrap; }
.flag {
  font-size: 11px; padding: 3px 8px; border-radius: 99px;
  background: rgba(240, 192, 74, .12); border: 1px solid rgba(240, 192, 74, .4); color: var(--warn);
}

/* ---------------------------------------------------------------- grid */

.grid {
  display: grid; gap: 8px; margin-top: 10px;
  grid-template-columns: repeat(5, minmax(0, 1fr));
}
@media (max-width: 560px) { .grid { grid-template-columns: repeat(4, minmax(0, 1fr)); } }

.cell {
  position: relative; display: flex; flex-direction: column; align-items: center;
  justify-content: center; gap: 2px; text-align: center;
  aspect-ratio: 1 / 1; padding: 6px 4px;
  background: var(--panel-2); border: 1px solid var(--line);
  border-radius: 12px; overflow: hidden; transition: border-color .15s, transform .1s;
}
.cell:hover { border-color: var(--accent-2); }
.cell:active { transform: scale(.97); }
.cell.selected { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(70, 224, 200, .3); }
.cell.empty { background: rgba(22, 34, 60, .35); border-style: dashed; color: var(--ink-dim); }
.cell.empty .plus { font-size: 20px; }
.cell.core { background: linear-gradient(160deg, #1b2c4e, #12203a); }
.cell.off { opacity: .5; }
.cell.damaged { border-color: var(--bad); }
.cell-icon { font-size: 20px; color: var(--accent); }
.cell.empty .cell-icon, .cell.off .cell-icon { color: var(--ink-dim); }
.cell-name { font-size: 10px; line-height: 1.1; color: var(--ink); }
.cell-meta { font-size: 9px; color: var(--ink-dim); }
.cond { position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: #0a1120; }
.cond i { display: block; height: 100%; background: var(--accent); }
.cell.damaged .cond i { background: var(--bad); }

/* --------------------------------------------------------------- panel */

.tabs { display: flex; border-bottom: 1px solid var(--line); }
.tabs button {
  flex: 1; background: transparent; border: 0; padding: 12px 6px;
  color: var(--ink-dim); font-size: 13px; border-bottom: 2px solid transparent;
}
.tabs button.active { color: var(--accent); border-bottom-color: var(--accent); }

.panel-body { padding: 14px; max-height: 62vh; overflow-y: auto; }
@media (max-width: 899px) { .panel-body { max-height: none; } }

.hint { color: var(--ink-dim); font-size: 13px; margin: 0 0 12px; }

.detail h3 { margin: 0 0 6px; font-size: 16px; }
.detail h3 small { color: var(--ink-dim); font-weight: 400; font-size: 12px; }
.detail .desc { color: var(--ink-dim); font-size: 13px; margin: 0 0 10px; }
.stats { list-style: none; margin: 0 0 14px; padding: 0; }
.stats li {
  display: flex; justify-content: space-between; gap: 10px;
  padding: 5px 0; border-bottom: 1px dashed var(--line); font-size: 13px;
}
.stats li span { color: var(--ink-dim); }

.actions { display: grid; gap: 8px; }
.act {
  display: flex; flex-direction: column; align-items: flex-start; gap: 2px;
  background: var(--panel-2); border: 1px solid var(--line);
  border-radius: 10px; padding: 10px 12px; text-align: left;
}
.act:hover:not(:disabled) { border-color: var(--accent); }
.act span { font-size: 11px; color: var(--ink-dim); }
.act.small { padding: 6px 10px; font-size: 12px; }
.act.danger { border-color: rgba(255, 107, 107, .4); color: var(--bad); }

.build-list { display: grid; gap: 8px; }
.build-row {
  display: flex; gap: 10px; align-items: flex-start; text-align: left;
  background: var(--panel-2); border: 1px solid var(--line);
  border-radius: 10px; padding: 10px;
}
.build-row:hover:not(:disabled) { border-color: var(--accent); }
.build-row.owned { border-color: rgba(70, 224, 138, .45); opacity: 1; }
.build-info { display: flex; flex-direction: column; gap: 2px; }
.build-info .desc { font-size: 12px; color: var(--ink-dim); }
.build-info .cost { font-size: 11px; color: var(--accent-2); }

.market-row {
  display: grid; grid-template-columns: 1fr auto auto; gap: 8px;
  align-items: center; padding: 8px 0; border-bottom: 1px dashed var(--line);
}
.mk-name { display: flex; flex-direction: column; }
.mk-name b { text-transform: capitalize; }
.mk-name span { font-size: 11px; color: var(--ink-dim); }

.log { list-style: none; margin: 0; padding: 0; }
.log li { padding: 7px 0; border-bottom: 1px dashed var(--line); font-size: 13px; }
.log .stamp {
  display: inline-block; min-width: 70px; color: var(--ink-dim);
  font-size: 11px; font-variant-numeric: tabular-nums;
}
.log li.good { color: var(--ok); }
.log li.warn { color: var(--warn); }
.log li.bad { color: var(--bad); }

/* -------------------------------------------------------------- modals */

.modal {
  position: fixed; inset: 0; z-index: 50;
  display: flex; align-items: center; justify-content: center; padding: 20px;
  background: rgba(4, 8, 16, .72); backdrop-filter: blur(4px);
}
.modal[hidden] { display: none; }
.modal-card {
  width: min(460px, 100%);
  background: linear-gradient(180deg, var(--panel), var(--bg-2));
  border: 1px solid var(--accent-2); border-radius: 16px;
  padding: 20px; box-shadow: var(--shadow);
}
.modal-card h2 { margin: 0 0 8px; font-size: 18px; color: var(--accent); }
.modal-card p { margin: 0 0 16px; color: var(--ink-dim); font-size: 14px; }