:root {
  --bg:        #2D2C30;
  --panel:     #3A383E;
  --panel-alt: #454249;
  --line:      #AAAAAA;
  --line-soft: rgba(170, 170, 170, .25);
  --accent:    #0C8CE9;
  --accent-dk: #0A7CCF;
  --logo:      #9DD8F7;
  --text:      #FFFFFF;
  --muted:     #AAAAAA;
  --dim:       #6E6C73;
  --ok:        #4CC38A;
  --warn:      #E9B949;
  --danger:    #FF6B6B;
  --radius:    5px;
  --grid:      22px;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100dvh;
  background-color: var(--bg);
  background-image: radial-gradient(circle at 1px 1px,
                    rgba(190, 216, 237, .20) .9px, transparent 0);
  background-size: var(--grid) var(--grid);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto,
               "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  color: var(--text);
}

/* ---------------------------- Шапка ---------------------------- */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 14px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--line-soft);
}

.topbar__logo { display: block; width: 150px; height: auto; }

.topbar__side {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  font-size: 14px;
}

.topbar__who { color: var(--muted); }
.topbar__who strong { color: var(--text); font-weight: 600; }

.role {
  display: inline-block;
  padding: 2px 8px;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  font-size: 12px;
  color: var(--muted);
}

.role[data-role="admin"] { color: var(--logo); border-color: var(--logo); }

/* ---------------------------- Вкладки ---------------------------- */

.tabs {
  display: flex;
  gap: 4px;
  padding: 0 20px;
  overflow-x: auto;
  background: var(--panel);
  border-bottom: 1px solid var(--line-soft);
}

.tab {
  flex: 0 0 auto;
  padding: 12px 16px;
  font: inherit;
  font-size: 15px;
  color: var(--muted);
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  cursor: pointer;
}

.tab:hover { color: var(--text); }
.tab[aria-selected="true"] { color: var(--text); border-bottom-color: var(--accent); }
.tab:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }

/* ---------------------------- Раскладка ---------------------------- */

.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 20px 48px;
}

.wrap--narrow { max-width: 486px; }

.panel {
  background: var(--panel);
  border-radius: 8px;
  padding: 28px 24px;
  margin-bottom: 20px;
}

.panel__title {
  margin: 0 0 4px;
  font-size: 18px;
  font-weight: 600;
}

.panel__hint {
  margin: 0 0 20px;
  font-size: 14px;
  color: var(--muted);
}

.row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: flex-end;
}

.row > * { flex: 1 1 160px; }
.row > .row__fit { flex: 0 0 auto; }

.hidden { display: none !important; }

/* ---------------------------- Поля ---------------------------- */

.field { margin-bottom: 16px; }

.field__label {
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
  color: var(--muted);
}

.input, .select {
  display: block;
  width: 100%;
  height: 48px;
  padding: 0 12px;
  font: inherit;
  font-size: 16px;
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.select { padding-right: 8px; }

.input::placeholder { color: var(--dim); }

.input:focus-visible, .select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}

.input--key, .keyout {
  text-align: center;
  letter-spacing: .10em;
  font-variant-numeric: tabular-nums;
  font-weight: 500;
}

.keyout {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ok);
  font-size: 18px;
  cursor: text;
  -webkit-user-select: all;
  user-select: all;
}

.keyout:empty::before {
  content: "XXXX-XXXX-XXXX-XXXX-XXXX";
  color: var(--dim);
  letter-spacing: normal;
}

.file {
  display: block;
  width: 100%;
  padding: 12px;
  font: inherit;
  font-size: 14px;
  color: var(--muted);
  background: var(--panel);
  border: 1px dashed var(--line);
  border-radius: var(--radius);
}

/* ---------------------------- Кнопки ---------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 18px;
  font: inherit;
  font-size: 16px;
  color: var(--muted);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  transition: background-color .15s ease, color .15s ease;
}

.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.btn:disabled { opacity: .55; cursor: default; }
.btn--wide { width: 100%; }

.btn--primary:enabled, a.btn--primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--text);
}
.btn--primary:enabled:hover, a.btn--primary:hover { background: var(--accent-dk); }

.btn--ghost:enabled, a.btn--ghost { color: var(--text); }
.btn--ghost:enabled:hover, a.btn--ghost:hover { background: var(--panel-alt); }

.btn--danger:enabled { color: var(--danger); border-color: var(--danger); }
.btn--danger:enabled:hover { background: rgba(255, 107, 107, .12); }

.btn--small { min-height: 34px; padding: 0 10px; font-size: 13px; }

.linkbtn {
  padding: 6px 8px;
  font: inherit;
  font-size: 14px;
  color: var(--muted);
  background: none;
  border: 0;
  border-radius: var(--radius);
  cursor: pointer;
}
.linkbtn:hover { color: var(--text); }
.linkbtn:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

/* ---------------------------- Сообщения ---------------------------- */

.msg {
  min-height: 22px;
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 22px;
  text-align: center;
  opacity: 1;
  transition: opacity .35s ease;
}

.msg[data-fading] { opacity: 0; }
.msg[data-kind="error"] { color: var(--danger); }
.msg[data-kind="ok"]    { color: var(--ok); }

.reveal {
  margin-bottom: 20px;
  padding: 20px 24px;
  background: var(--panel);
  border: 1px solid var(--warn);
  border-radius: 8px;
}

.reveal__title { margin: 0 0 4px; font-size: 16px; color: var(--warn); }
.reveal__hint { margin: 0 0 14px; font-size: 14px; color: var(--muted); }

.reveal__value {
  padding: 14px;
  margin-bottom: 14px;
  font-size: 22px;
  text-align: center;
  letter-spacing: .12em;
  font-variant-numeric: tabular-nums;
  background: var(--bg);
  border-radius: var(--radius);
  -webkit-user-select: all;
  user-select: all;
}

/* ---------------------------- Таблицы ---------------------------- */

.tablewrap {
  overflow-x: auto;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
}

table { width: 100%; border-collapse: collapse; font-size: 14px; }

th {
  padding: 10px 12px;
  text-align: left;
  font-weight: 600;
  font-size: 13px;
  color: var(--muted);
  white-space: nowrap;
  background: var(--panel-alt);
  border-bottom: 1px solid var(--line-soft);
}

td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line-soft);
  vertical-align: middle;
}

tbody tr:last-child td { border-bottom: 0; }

th.grow { width: 100%; }
td.grow { white-space: normal; }

td.num { font-variant-numeric: tabular-nums; white-space: nowrap; }
td.key { font-variant-numeric: tabular-nums; letter-spacing: .04em; white-space: nowrap; }
td.dim { color: var(--muted); }
td.actions { white-space: nowrap; text-align: right; }

.state { font-size: 13px; }
.state--on  { color: var(--ok); }
.state--off { color: var(--danger); }

.empty {
  padding: 32px 16px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}

/* ---------------------------- Карточки аппаратов ---------------------------- */

.cards {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}

.card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px;
  background: var(--panel-alt);
  border-radius: var(--radius);
}

.card__model { margin: 0; font-size: 16px; font-weight: 600; }
.card__meta { margin: 0; font-size: 13px; color: var(--muted); }

.card__row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: auto; }

.slug {
  padding: 8px 10px;
  font-size: 12px;
  color: var(--muted);
  background: var(--bg);
  border-radius: var(--radius);
  overflow-wrap: anywhere;
}

/* ---------------------------- Мобильные ---------------------------- */

@media (max-width: 620px) {
  .topbar { padding: 12px 16px; }
  .topbar__logo { width: 120px; }
  .tabs { padding: 0 8px; }
  .tab { padding: 12px 12px; font-size: 14px; }
  .wrap { padding: 16px 12px 40px; }
  .panel { padding: 20px 16px; border-radius: 6px; }
  .row > * { flex: 1 1 100%; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}