/* PacketCrew app UI — deep navy + cyan terminal aesthetic (see DESIGN.md). */
:root {
  color-scheme: dark;
  --bg: #0b1220;
  --bg-panel: #111c33;
  --bg-input: #0b1428;
  --line: #22345a;
  --line-bright: #2c426e;
  --text: #e6edf7;
  --text-dim: #8fa3bf;
  --glow: #22d3ee;
  --glow-teal: #2dd4bf;
  --action: #2563eb;
  --danger: #f87171;
  --mono: ui-monospace, "Cascadia Code", "JetBrains Mono", Menlo, monospace;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--mono);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}
.grid-floor {
  position: fixed; inset: auto 0 0 0; height: 32vh; pointer-events: none;
  background-image:
    linear-gradient(rgba(34, 211, 238, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 211, 238, 0.07) 1px, transparent 1px);
  background-size: 44px 44px;
  transform: perspective(520px) rotateX(58deg) scale(1.6);
  transform-origin: bottom;
  mask-image: linear-gradient(to top, black 30%, transparent 95%);
  z-index: 0;
}
.shell { position: relative; z-index: 1; max-width: 780px; margin: 0 auto; padding: 1.5rem 1rem 4rem; }
.hidden { display: none !important; }

/* header */
.topbar { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; margin-bottom: 1.25rem; }
.wordmark { font-size: 1.6rem; font-weight: 800; letter-spacing: 0.12em; color: var(--glow);
  text-shadow: 0 0 24px rgba(34, 211, 238, 0.45); }
.wordmark span { color: var(--text); text-shadow: none; }
.tabs { display: flex; gap: 0.5rem; margin-left: auto; }
.auth { margin-left: 0; }
.auth .user { color: var(--text-dim); font-size: 0.85rem; margin-right: 0.5rem; }

/* badge */
.badge { display: inline-block; border: 1px solid var(--line-bright); color: var(--glow);
  padding: 0.3rem 0.8rem; font-size: 0.75rem; letter-spacing: 0.18em; margin: 0 0 1.25rem; }

/* panels */
.panel { background: var(--bg-panel); border: 1px solid var(--line); border-radius: 10px;
  padding: 1.25rem; margin-bottom: 1.25rem; }
.panel-head { display: flex; align-items: center; gap: 0.6rem; font-size: 0.8rem;
  letter-spacing: 0.16em; color: var(--text-dim); margin-bottom: 1rem; }
.lamp { width: 9px; height: 9px; border-radius: 50%; background: var(--glow-teal);
  box-shadow: 0 0 10px var(--glow-teal); display: inline-block; }
.lamp.busy { background: var(--glow); box-shadow: 0 0 10px var(--glow); animation: pulse 1s infinite alternate; }
.lamp.fail { background: var(--danger); box-shadow: 0 0 10px var(--danger); }
@keyframes pulse { from { opacity: 0.5; } to { opacity: 1; } }
.terminal .output { font-size: 0.92rem; line-height: 1.55; }

/* forms */
label { display: block; margin: 0.9rem 0 0.35rem; color: var(--text-dim); font-size: 0.8rem; letter-spacing: 0.1em; }
select, textarea, .textin {
  width: 100%; font-family: var(--mono); font-size: 0.95rem; border-radius: 8px;
  border: 1px solid var(--line-bright); background: var(--bg-input); color: var(--text);
  padding: 0.65rem 0.8rem;
}
select:focus, textarea:focus, .textin:focus { outline: none; border-color: var(--glow); }
textarea { resize: vertical; }
.dim { color: var(--text-dim); font-size: 0.88rem; line-height: 1.5; }
.dim em { color: var(--glow-teal); font-style: normal; }

/* buttons — bracket style */
button { font-family: var(--mono); letter-spacing: 0.12em; cursor: pointer; border-radius: 8px; }
button.primary {
  width: 100%; margin-top: 1rem; padding: 0.8rem; font-weight: 700;
  background: var(--action); border: 1px solid var(--action); color: #fff; font-size: 0.95rem;
}
button.primary:hover { background: #1d4ed8; }
button.primary:disabled { opacity: 0.55; cursor: wait; }
button.ghost {
  background: transparent; border: 1px solid var(--line-bright); color: var(--glow);
  padding: 0.55rem 0.9rem; font-size: 0.82rem;
}
button.ghost:hover { border-color: var(--glow); }
.tab { background: transparent; border: 1px solid transparent; color: var(--text-dim);
  padding: 0.5rem 0.7rem; font-size: 0.82rem; }
.tab.active { color: var(--glow); border-color: var(--line-bright); }
.row { display: flex; gap: 0.6rem; align-items: center; margin-top: 0.8rem; flex-wrap: wrap; }
.upload { margin: 0; border: 1px solid var(--line-bright); color: var(--glow); border-radius: 8px;
  padding: 0.55rem 0.9rem; font-size: 0.82rem; letter-spacing: 0.12em; cursor: pointer; display: inline-block; }
.upload:hover { border-color: var(--glow); }
.filechip { color: var(--glow-teal); font-size: 0.85rem; }

.status { color: var(--text-dim); min-height: 1.3rem; font-size: 0.85rem; margin: 0.7rem 0 0; }
.status.ok { color: var(--glow-teal); }
.status.err { color: var(--danger); }
.output {
  white-space: pre-wrap; word-break: break-word; background: var(--bg-input);
  border: 1px solid var(--line); border-radius: 8px; padding: 0.9rem;
  min-height: 8rem; margin: 0; font-size: 0.92rem; line-height: 1.55;
}

/* keys */
.keylist { list-style: none; margin: 0; padding: 0; }
.keylist li { display: flex; align-items: center; gap: 0.8rem; padding: 0.6rem 0;
  border-bottom: 1px solid var(--line); font-size: 0.88rem; }
.keylist li:last-child { border-bottom: none; }
.keylist .meta { color: var(--text-dim); font-size: 0.78rem; }
.keylist button { margin-left: auto; }

/* modal */
.modal { position: fixed; inset: 0; background: rgba(4, 8, 18, 0.8); display: flex;
  align-items: center; justify-content: center; z-index: 10; padding: 1rem; }
.modal-box { width: 100%; max-width: 420px; }
.modal-box .ghost { width: 100%; margin-top: 0.6rem; }

.foot { text-align: center; color: var(--text-dim); font-size: 0.75rem; letter-spacing: 0.1em; margin-top: 2rem; }
.sech { font-size: 0.78rem; letter-spacing: 0.16em; color: var(--text-dim); margin: 1.2rem 0 0.4rem; }