:root {
  --bg: #0e1116;
  --bg-elev: #161b22;
  --bg-elev2: #1c2330;
  --border: #2a3340;
  --text: #e6edf3;
  --text-dim: #9aa7b4;
  --accent: #4c8dff;
  --accent-dim: #2a4d80;
  --ok: #3fb950;
  --err: #f85149;
  --warn: #d29922;
  --radius: 12px;
  --shadow: 0 6px 24px rgba(0,0,0,.35);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

/* ── Auth pages ─────────────────────────────────────────────── */
.auth-body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: radial-gradient(1200px 600px at 50% -10%, #18324f33, transparent), var(--bg);
}
.auth-card {
  width: min(92vw, 360px);
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  box-shadow: var(--shadow);
  text-align: center;
}
.auth-logo { font-size: 2.4rem; }
.auth-card h1 { font-size: 1.25rem; margin: .4rem 0 .1rem; }
.auth-sub { color: var(--text-dim); font-size: .9rem; margin: 0 0 1.25rem; }
.auth-card form { text-align: left; display: flex; flex-direction: column; gap: .35rem; }
.auth-card label { font-size: .82rem; color: var(--text-dim); margin-top: .5rem; }
.auth-card input[type=password],
.auth-card input[type=text] {
  width: 100%;
  padding: .65rem .7rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 1rem;
}
.auth-card input:focus { outline: 2px solid var(--accent-dim); border-color: var(--accent); }
.auth-card button[type=submit] {
  margin-top: 1.1rem;
  padding: .7rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}
.auth-card button[type=submit]:hover { background: #3a7de0; }
.auth-error {
  background: #f8514922;
  border: 1px solid #f8514955;
  color: #ffb3ae;
  padding: .55rem .7rem;
  border-radius: 8px;
  font-size: .85rem;
  margin-bottom: .9rem;
}
.checkbox-row { flex-direction: row; align-items: center; gap: .5rem; margin-top: .8rem; color: var(--text); }
.checkbox-row input { width: auto; }
.secondary-form { margin-top: .8rem; text-align: center; }
.link-btn {
  background: none; border: none; color: var(--text-dim);
  cursor: pointer; font-size: .85rem; text-decoration: underline;
}

/* ── Topbar ─────────────────────────────────────────────────── */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: .8rem 1.2rem;
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 5;
}
.brand { font-weight: 700; letter-spacing: .3px; }
.brand-mark { margin-right: .35rem; }
.topbar-actions { display: flex; gap: .5rem; align-items: center; }
.inline-form { margin: 0; }
.ghost-btn {
  background: transparent; border: 1px solid var(--border);
  color: var(--text); padding: .45rem .8rem; border-radius: 8px;
  cursor: pointer; font-size: .85rem;
}
.ghost-btn:hover { background: var(--bg-elev2); }

/* ── Layout ─────────────────────────────────────────────────── */
.layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 1rem;
  padding: 1rem;
  max-width: 1400px;
  margin: 0 auto;
  align-items: start;
}
@media (max-width: 900px) { .layout { grid-template-columns: 1fr; } }

.pane-head { display: flex; align-items: center; gap: .5rem; margin: .2rem .2rem 1rem; }
.pane-head h2 { font-size: 1rem; margin: 0; color: var(--text-dim); text-transform: uppercase; letter-spacing: .6px; }

.live-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--text-dim); }
.live-dot.on { background: var(--ok); box-shadow: 0 0 8px var(--ok); }

/* ── Cards ──────────────────────────────────────────────────── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: .8rem;
}
.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .9rem;
  display: flex; flex-direction: column; gap: .55rem;
}
.card-head { display: flex; align-items: center; gap: .55rem; }
.card-emoji { font-size: 1.3rem; }
.card-title { font-weight: 600; }
.card-badge {
  margin-left: auto; font-size: .68rem; padding: .15rem .45rem;
  border-radius: 999px; border: 1px solid var(--border); color: var(--text-dim);
}
.card-badge.ok { color: var(--ok); border-color: #3fb95055; }
.card-badge.error { color: var(--err); border-color: #f8514955; }
.card-badge.warning { color: var(--warn); border-color: #d2992255; }
.card-summary { font-size: .85rem; color: var(--text); }
.card-meta { font-size: .72rem; color: var(--text-dim); }
.card-activity { list-style: none; margin: .3rem 0 0; padding: 0; display: flex; flex-direction: column; gap: .25rem; }
.card-activity li { font-size: .74rem; color: var(--text-dim); display: flex; gap: .4rem; }
.dot { width: 7px; height: 7px; border-radius: 50%; margin-top: .35rem; flex: none; background: var(--text-dim); }
.dot.ok { background: var(--ok); }
.dot.error { background: var(--err); }
.dot.warning { background: var(--warn); }

/* ── Chat ───────────────────────────────────────────────────── */
.chat-pane {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  display: flex; flex-direction: column;
  height: calc(100vh - 6.5rem);
  position: sticky; top: 5rem;
}
.chat-log { flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: .6rem; padding-right: .3rem; }
.msg { max-width: 85%; padding: .55rem .8rem; border-radius: 12px; font-size: .9rem; word-wrap: break-word; }
.msg.user { align-self: flex-end; background: var(--accent-dim); border-bottom-right-radius: 4px; }
.msg.assistant { align-self: flex-start; background: var(--bg-elev2); border-bottom-left-radius: 4px; }
.msg .who { display: block; font-size: .68rem; color: var(--text-dim); margin-bottom: .2rem; }
.msg code { background: #0008; padding: .05rem .3rem; border-radius: 4px; font-size: .85em; }
.msg pre { background: #0008; padding: .5rem; border-radius: 8px; overflow-x: auto; }
.msg a { color: var(--accent); }
.chat-form { display: flex; gap: .5rem; margin-top: .7rem; }
.chat-form textarea {
  flex: 1; resize: none; padding: .6rem .7rem;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 8px; color: var(--text); font-size: .92rem; font-family: inherit;
  max-height: 140px;
}
.chat-form textarea:focus { outline: 2px solid var(--accent-dim); border-color: var(--accent); }
.chat-form button {
  background: var(--accent); color: #fff; border: none; border-radius: 8px;
  padding: 0 1.1rem; font-weight: 600; cursor: pointer;
}
.chat-form button:disabled { opacity: .5; cursor: default; }
.typing { font-size: .8rem; color: var(--text-dim); font-style: italic; }

/* ── Modal de dispositivos ──────────────────────────────────── */
.modal { position: fixed; inset: 0; background: #000a; display: grid; place-items: center; z-index: 20; }
.modal.hidden { display: none; }
.modal-card { width: min(92vw, 560px); background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.2rem; box-shadow: var(--shadow); }
.modal-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.modal-head h3 { margin: 0; }
.devices-list { display: flex; flex-direction: column; gap: .5rem; max-height: 50vh; overflow-y: auto; }
.device-row { display: flex; align-items: center; gap: .6rem; padding: .6rem .7rem; background: var(--bg); border: 1px solid var(--border); border-radius: 8px; }
.device-info { flex: 1; }
.device-info .device-label { font-weight: 600; font-size: .9rem; }
.device-info .device-sub { font-size: .72rem; color: var(--text-dim); }
.tag-current { font-size: .66rem; color: var(--ok); border: 1px solid #3fb95055; border-radius: 999px; padding: .1rem .45rem; }
.tag-revoked { font-size: .66rem; color: var(--text-dim); }
.danger-btn { margin-top: 1rem; width: 100%; background: transparent; border: 1px solid #f8514955; color: #ffb3ae; padding: .6rem; border-radius: 8px; cursor: pointer; }
.danger-btn:hover { background: #f8514915; }
.mini-btn { background: transparent; border: 1px solid var(--border); color: var(--text); padding: .35rem .6rem; border-radius: 6px; cursor: pointer; font-size: .78rem; }
.mini-btn:hover { background: var(--bg-elev2); }
.hidden { display: none; }
.empty { color: var(--text-dim); font-size: .85rem; text-align: center; padding: 1.5rem; }