:root {
  --azul: #29a9e1; --azul-osc: #1477a8;
  --bg: #f6f8fa; --card: #fff; --txt: #14212b; --muted: #66798a; --border: #e1e8ee; --field: #fff;
  --ink: #14212b; --ink-txt: #fff;
  --ok: #0f7b46; --ok-bg: #e6f6ee; --off: #8a5a00; --off-bg: #fdf1dc; --danger: #c0392b;
  --serif: "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --mono: ui-monospace, "SF Mono", Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e151b; --card: #151f27; --txt: #e6edf3; --muted: #8ea1b1; --border: #26343f; --field: #0e151b;
    --ink: #e6edf3; --ink-txt: #0e151b;
    --ok: #4ad08a; --ok-bg: #12301f; --off: #f0b44c; --off-bg: #33270f; --danger: #ff7b6b;
  }
}
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif; background: var(--bg); color: var(--txt); }
[hidden] { display: none !important; }
h1, h2 { margin: 0; }
main { max-width: 960px; margin: 0 auto; padding: 20px 16px 48px; }
.muted { color: var(--muted); }
.center-text { text-align: center; padding: 24px 0; }
.err { color: var(--danger); margin: 8px 0 0; font-size: 14px; }
.err:empty { display: none; }
.label { font-size: 12px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }

/* Botones y campos */
input, button { font: inherit; border-radius: 10px; border: 1px solid var(--border); padding: 9px 13px; color: var(--txt); background: var(--field); }
input:focus-visible, button:focus-visible { outline: 2px solid var(--azul); outline-offset: 1px; }
button { cursor: pointer; background: var(--card); transition: background .15s, border-color .15s; }
button:hover { border-color: var(--muted); }
button.primary { background: var(--ink); color: var(--ink-txt); border-color: var(--ink); font-weight: 600; }
button.primary:hover { opacity: .88; }
button.danger { color: var(--danger); }
button.danger:hover { border-color: var(--danger); }
button.sm { padding: 5px 10px; font-size: 13px; }

/* Marca */
.logo, .brand img { background: #fff; border-radius: 10px; border: 1px solid var(--border); } /* placa blanca: el logo tiene tonos claros que se pierden en modo oscuro */
.logo { display: block; height: 84px; width: auto; margin: 0 auto 14px; padding: 8px 14px; }

/* Login */
.center { min-height: 100vh; display: grid; place-items: center; max-width: none; background: url(fondo.svg) center / cover no-repeat; }
.login-card { width: min(380px, 100%); background: var(--card); border: 1px solid var(--border); border-radius: 16px; box-shadow: 10px 10px 0 var(--border); overflow: hidden; }
.login-head { text-align: center; padding: 28px 24px 22px; border-bottom: 1px solid var(--border); }
.login-head h1 { font: 600 28px var(--serif); }
.login-head p { margin: 6px 0 0; }
.login-body { display: grid; gap: 14px; padding: 24px; }
.login-body label { display: grid; gap: 6px; font-size: 12px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.login-body label input { text-transform: none; letter-spacing: 0; font-weight: 400; font-size: 15px; }
.login-body .err { margin: 0; text-align: center; }

/* Panel */
.top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand img { height: 56px; width: auto; padding: 6px 12px; }
.brand h1 { font: 600 22px var(--serif); color: var(--muted); padding-left: 10px; border-left: 1px solid var(--border); }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 18px; }
.card .label { margin-bottom: 12px; display: block; }
.add { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.add input { flex: 1; min-width: 140px; font-family: var(--mono); }
.suffix { font-family: var(--mono); color: var(--muted); font-size: 14px; }
.note { margin-top: 14px; padding: 12px 14px; border-radius: 10px; background: var(--ok-bg); color: var(--txt); word-break: break-all; font-size: 14px; }
.note code { display: block; margin: 6px 0; font-family: var(--mono); font-size: 14px; }
.section-title { display: flex; justify-content: space-between; align-items: baseline; margin: 28px 2px 12px; }

/* Tarjetas de hostname */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 420px), 1fr)); gap: 14px; }
.host { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 18px; display: grid; gap: 14px; }
.host-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; }
.host-name { font: 600 17px var(--mono); word-break: break-all; }
.host-name small { display: block; font: 400 13px system-ui, sans-serif; color: var(--muted); margin-top: 2px; }
.pill { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: 999px; font-size: 13px; font-weight: 600; white-space: nowrap; background: var(--off-bg); color: var(--off); }
.pill::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.pill.on { background: var(--ok-bg); color: var(--ok); }
.facts { display: flex; gap: 28px; }
.fact span { display: block; font-size: 11px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.fact b { font: 500 15px var(--mono); }
.tok { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; padding-top: 14px; border-top: 1px solid var(--border); }
.tok input { flex: 1 1 200px; min-width: 0; font: 13px var(--mono); padding: 6px 10px; color: var(--muted); }
.actions { display: flex; gap: 6px; flex-wrap: wrap; }
.actions .danger { margin-left: auto; }

.log { margin: 0; padding: 0; list-style: none; font: 14px var(--mono); }
.log li { padding: 8px 0; border-bottom: 1px solid var(--border); }
.log li:last-child { border: 0; }
#logBox { margin-top: 20px; }