/* ============================================================
   EM-Rover UI — Bauhaus SDR (Split.js layout, clean)
   - Layout: Split.js panes (left: freq+waterfall, right: control)
   - Panels: flat borders
   - Controls: instrument-like (freq readout, segmented toggles)
   - Status: single-line bottom bar
   ============================================================ */

:root {
  /* Base */
  --bg: #0d1117;       /* Deep Black */
  --panel: #0b0e12;    /* panel background */
  --panel-2: #121720;  /* inner module background */
  --border: #2b3545;   /* flat panel border */
  --border-2: #353d47; /* slightly stronger line */

  /* Text */
  --text: #e6e1d9;     /* Warm White */
  --text-2: #9a9288;   /* secondary, warm gray */
  --sand: #d8c9a3;     /* labels */

  /* Accents */
  --blue: #2d5bff;     /* Ultramarine */
  --yellow: #f2c94c;   /* Industrial Yellow */
  --red: #e53935;      /* Signal Red */
  --teal: #17a589;     /* Entropy teal */
  --violet: #7d5fc7;   /* Topology violet */
  --sky: #2196f3;      /* BW sky blue */
  --cyan: #26a69a;     /* Temporal entropy cyan */
  --orange: #f2a65a;   /* Peak-to-median orange */
  --amber: #ffb300;    /* Temporal change amber */

  /* Inputs */
  --input-bg: #0b0d10;
  --input-fg: var(--text);

  /* Buttons */
  --btn-shadow: rgba(0, 0, 0, 0.55);
  --btn-text-light: #ffffff;
  --btn-text-dark: #0b0d10;

  /* Rings */
  --focus-ring: color-mix(in srgb, var(--yellow) 55%, transparent);
}

/* ============================
   Page
   ============================ */
html,
body {
  margin: 0;
  padding: 0;
  background-color: var(--bg);
  color: var(--text);
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  height: 100%;
  overflow: hidden;
}

#main-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--bg);
  padding: 6px;
  box-sizing: border-box;
  gap: 3px;
}

/* ============================
   Split.js layout containers
   ============================ */

/* root split region (content) */
#content.split.horizontal {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
}

/* Split.js expects .split children to be sized; keep it simple */
.split {
  display: flex;
  min-height: 0;
  min-width: 0;
}

/* Your left/right columns */
#left-panel.split.vertical {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column-reverse;
}

#right-panel.split.vertical {
  flex: 1 1 auto;
  min-width: 260px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-height: 0;
}

/* Split.js gutter — invisible but draggable */
.gutter {
  background-color: transparent;
  flex-shrink: 0;
  box-sizing: border-box;
}

.gutter.gutter-horizontal {
  width: 2px;
  cursor: col-resize;
}

.gutter.gutter-vertical {
  height: 2px;
  cursor: row-resize;
}

/* ============================
   Panels (flat borders)
   ============================ */

.panel {
  border: 1px solid var(--border);
  background-color: var(--panel);
  padding: 8px;
  border-radius: 3px;
  box-sizing: border-box;
}

/* Panels mounted into these IDs */
#waterfall-panel {
  background-color: var(--panel);
  padding: 0;
  border-radius: 3px;
  box-sizing: border-box;
  overflow: hidden;
  min-height: 0;
}

#frequency-panel {
  background-color: var(--panel);
  padding: 0;
  border-radius: 3px;
  box-sizing: border-box;
  overflow: hidden;
  min-height: 0;
}

/* Split.js controls heights via inline style — no competing flex-basis */
#waterfall-panel {
  min-height: 80px;
  overflow: hidden;
}

#frequency-panel {
  min-height: 80px;
  overflow: hidden;
}

#control-panel {
  flex: 0 0 auto;
  overflow: auto;
}

/* Панель результатів прихована → керуванню дістається вся колонка. */
#right-panel > #control-panel:only-child {
  flex: 1 1 auto;
  min-height: 0;
}

#results-panel,
#signals-panel,
#nets-panel {
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* Мереж кілька, а сигналів — десятки: мережам — висота за вмістом. */
#nets-panel {
  flex: 0 1 auto;
  max-height: 35%;
}

/* ============================
   Status bar (single row)
   ============================ */

.status-panel {
  height: 32px;
  flex: 0 0 32px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  background-color: var(--panel);
  border-radius: 3px;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.status-line {
  display: flex;
  gap: 10px;
  align-items: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-2);
}

.status-line b {
  color: var(--sand);
  font-weight: 600;
}

.status-pill {
  padding: 1px 6px;
  border-radius: 2px;
  background: var(--panel-2);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--border) 70%, transparent);
  color: var(--text);
}

.status-pill.ok { color: var(--text); }
.status-pill.bad { color: var(--red); }
.status-pill.warn { color: var(--yellow); }
.status-pill.busy { color: var(--yellow); }

/* ============================
   Control tabs widget
   ============================ */

.ctrl-tabs {
  position: relative;
  border: 1px solid var(--tab-color, var(--border-2));
  border-radius: 3px;
  background-color: var(--panel-2);
  padding: 22px 12px 12px 12px;
  box-sizing: border-box;
  transition: border-color 0.2s ease;
}

/* Redraw top border line on top of the tag labels */
.ctrl-tabs::after {
  content: '';
  position: absolute;
  top: -1px;
  left: 3px;
  right: 3px;
  border-top: 1px solid var(--tab-color, var(--border-2));
  pointer-events: none;
  z-index: 2;
  transition: border-color 0.2s ease;
}

.ctrl-tab-bar {
  position: absolute;
  top: -1px;
  left: 10px;
  display: flex;
  gap: 0;
  z-index: 10;
}

.panel-title {
  padding: 3px 8px 1px;
  font-family: inherit;
  font-size: 11px;
  background: var(--panel-2);
  border-left: 1px solid var(--border-2);
  border-right: 1px solid var(--border-2);
  border-bottom: 1px solid var(--border-2);
  border-radius: 0 0 2px 2px;
  color: var(--text-2);
  letter-spacing: 0.5px;
  line-height: 1;
  text-indent: 0.5px;
  user-select: none;
}

.panel-title-blue {
  background: color-mix(in srgb, var(--blue) 22%, var(--panel-2));
  border-color: color-mix(in srgb, var(--blue) 50%, var(--border-2));
  color: color-mix(in srgb, var(--blue) 70%, var(--text-2));
}

.panel-title-dis {
  background: color-mix(in srgb, var(--yellow) 22%, var(--panel-2));
  border-color: color-mix(in srgb, var(--yellow) 50%, var(--border-2));
  color: color-mix(in srgb, var(--yellow) 70%, var(--text-2));
}

.ctrl-tab {
  padding: 3px 6px 1px;
  font-family: inherit;
  font-size: 11px;
  background: var(--panel-2);
  border-top: none;
  border-left: 1px solid var(--border-2);
  border-right: 1px solid var(--border-2);
  border-bottom: 1px solid var(--border-2);
  border-radius: 0 0 2px 2px;
  color: var(--text-2);
  cursor: pointer;
  letter-spacing: 0.5px;
  line-height: 1;
  text-indent: 0.5px;
}

.ctrl-tab-rf  { background: color-mix(in srgb, var(--red)    18%, var(--panel-2)); border-color: color-mix(in srgb, var(--red)    35%, var(--border-2)); color: color-mix(in srgb, var(--red)    55%, var(--text-2)); }
.ctrl-tab-dsp { background: color-mix(in srgb, var(--blue)   18%, var(--panel-2)); border-color: color-mix(in srgb, var(--blue)   35%, var(--border-2)); color: color-mix(in srgb, var(--blue)   55%, var(--text-2)); }
.ctrl-tab-dis { background: color-mix(in srgb, var(--yellow) 18%, var(--panel-2)); border-color: color-mix(in srgb, var(--yellow) 35%, var(--border-2)); color: color-mix(in srgb, var(--yellow) 55%, var(--text-2)); }
.ctrl-tab-pwr { background: color-mix(in srgb, var(--yellow) 18%, var(--panel-2)); border-color: color-mix(in srgb, var(--yellow) 35%, var(--border-2)); color: color-mix(in srgb, var(--yellow) 55%, var(--text-2)); }
.ctrl-tab-ent { background: color-mix(in srgb, var(--teal)   18%, var(--panel-2)); border-color: color-mix(in srgb, var(--teal)   35%, var(--border-2)); color: color-mix(in srgb, var(--teal)   55%, var(--text-2)); }
.ctrl-tab-top { background: color-mix(in srgb, var(--violet) 18%, var(--panel-2)); border-color: color-mix(in srgb, var(--violet) 35%, var(--border-2)); color: color-mix(in srgb, var(--violet) 55%, var(--text-2)); }
.ctrl-tab-tmp { background: color-mix(in srgb, var(--violet) 18%, var(--panel-2)); border-color: color-mix(in srgb, var(--violet) 35%, var(--border-2)); color: color-mix(in srgb, var(--violet) 55%, var(--text-2)); }
.ctrl-tab-rny  { background: color-mix(in srgb, var(--red)    18%, var(--panel-2)); border-color: color-mix(in srgb, var(--red)    35%, var(--border-2)); color: color-mix(in srgb, var(--red)    55%, var(--text-2)); }
.ctrl-tab-bw   { background: color-mix(in srgb, var(--sky)    18%, var(--panel-2)); border-color: color-mix(in srgb, var(--sky)    35%, var(--border-2)); color: color-mix(in srgb, var(--sky)    55%, var(--text-2)); }
.ctrl-tab-tent { background: color-mix(in srgb, var(--cyan)   18%, var(--panel-2)); border-color: color-mix(in srgb, var(--cyan)   35%, var(--border-2)); color: color-mix(in srgb, var(--cyan)   55%, var(--text-2)); }
.ctrl-tab-pm   { background: color-mix(in srgb, var(--orange) 18%, var(--panel-2)); border-color: color-mix(in srgb, var(--orange) 35%, var(--border-2)); color: color-mix(in srgb, var(--orange) 55%, var(--text-2)); }
.ctrl-tab-tchg { background: color-mix(in srgb, var(--amber)  18%, var(--panel-2)); border-color: color-mix(in srgb, var(--amber)  35%, var(--border-2)); color: color-mix(in srgb, var(--amber)  55%, var(--text-2)); }
.ctrl-tab-det  { background: color-mix(in srgb, var(--teal)   18%, var(--panel-2)); border-color: color-mix(in srgb, var(--teal)   35%, var(--border-2)); color: color-mix(in srgb, var(--teal)   55%, var(--text-2)); }
.ctrl-tab-sim  { background: color-mix(in srgb, var(--violet) 18%, var(--panel-2)); border-color: color-mix(in srgb, var(--violet) 35%, var(--border-2)); color: color-mix(in srgb, var(--violet) 55%, var(--text-2)); }
.ctrl-tab-demod { background: color-mix(in srgb, var(--cyan)  18%, var(--panel-2)); border-color: color-mix(in srgb, var(--cyan)  35%, var(--border-2)); color: color-mix(in srgb, var(--cyan)  55%, var(--text-2)); }
.ctrl-tab-pan   { background: color-mix(in srgb, var(--sky)   18%, var(--panel-2)); border-color: color-mix(in srgb, var(--sky)   35%, var(--border-2)); color: color-mix(in srgb, var(--sky)   55%, var(--text-2)); }

.ctrl-tab-rf.active  { background: var(--red);    border-left-color: var(--red);    border-right-color: var(--red);    border-bottom-color: var(--red);    color: #fff; }
.ctrl-tab-dsp.active { background: var(--blue);   border-left-color: var(--blue);   border-right-color: var(--blue);   border-bottom-color: var(--blue);   color: #fff; }
.ctrl-tab-dis.active { background: var(--yellow); border-left-color: var(--yellow); border-right-color: var(--yellow); border-bottom-color: var(--yellow); color: var(--btn-text-dark); }
.ctrl-tab-det.active { background: var(--teal);   border-left-color: var(--teal);   border-right-color: var(--teal);   border-bottom-color: var(--teal);   color: #fff; }
.ctrl-tab-pwr.active { background: var(--yellow); border-left-color: var(--yellow); border-right-color: var(--yellow); border-bottom-color: var(--yellow); color: var(--btn-text-dark); }
.ctrl-tab-ent.active { background: var(--teal);   border-left-color: var(--teal);   border-right-color: var(--teal);   border-bottom-color: var(--teal);   color: #fff; }
.ctrl-tab-top.active { background: var(--violet); border-left-color: var(--violet); border-right-color: var(--violet); border-bottom-color: var(--violet); color: #fff; }
.ctrl-tab-tmp.active { background: var(--violet); border-left-color: var(--violet); border-right-color: var(--violet); border-bottom-color: var(--violet); color: #fff; }
.ctrl-tab-rny.active  { background: var(--red);    border-left-color: var(--red);    border-right-color: var(--red);    border-bottom-color: var(--red);    color: #fff; }
.ctrl-tab-bw.active   { background: var(--sky);    border-left-color: var(--sky);    border-right-color: var(--sky);    border-bottom-color: var(--sky);    color: #fff; }
.ctrl-tab-tent.active { background: var(--cyan);   border-left-color: var(--cyan);   border-right-color: var(--cyan);   border-bottom-color: var(--cyan);   color: #fff; }
.ctrl-tab-pm.active   { background: var(--orange); border-left-color: var(--orange); border-right-color: var(--orange); border-bottom-color: var(--orange); color: var(--btn-text-dark); }
.ctrl-tab-tchg.active { background: var(--amber);  border-left-color: var(--amber);  border-right-color: var(--amber);  border-bottom-color: var(--amber);  color: var(--btn-text-dark); }
.ctrl-tab-sim.active  { background: var(--violet); border-left-color: var(--violet); border-right-color: var(--violet); border-bottom-color: var(--violet); color: #fff; }
.ctrl-tab-demod.active { background: var(--cyan);  border-left-color: var(--cyan);  border-right-color: var(--cyan);  border-bottom-color: var(--cyan);  color: #fff; }
.ctrl-tab-pan.active   { background: var(--sky);    border-left-color: var(--sky);    border-right-color: var(--sky);    border-bottom-color: var(--sky);    color: #fff; }

/* ============================
   SIM tab — каталог і список емітерів
   ============================ */

.sim-note {
  font-size: 10px;
  color: var(--text-2);
  opacity: 0.75;
  padding: 4px 2px 6px 2px;
  line-height: 1.35;
}

.sim-group-title {
  font-size: 9px;
  letter-spacing: 0.09em;
  color: var(--text-2);
  opacity: 0.8;
  margin: 8px 0 4px 2px;
}

.sim-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.sim-chip {
  font-family: inherit;
  font-size: 10px;
  padding: 4px 8px;
  border-radius: 4px;
  cursor: pointer;
  background: color-mix(in srgb, var(--violet) 12%, var(--panel-2));
  border: 1px solid color-mix(in srgb, var(--violet) 30%, var(--border-2));
  color: var(--text);
  transition: background 0.12s, border-color 0.12s;
}
.sim-chip:hover {
  background: color-mix(in srgb, var(--violet) 28%, var(--panel-2));
  border-color: var(--violet);
}
.sim-chip-on {
  background: var(--violet);
  border-color: var(--violet);
  color: #fff;
}
.sim-chip-on:hover { background: var(--violet); }

.sim-chip-danger {
  background: color-mix(in srgb, var(--red) 12%, var(--panel-2));
  border-color: color-mix(in srgb, var(--red) 30%, var(--border-2));
}
.sim-chip-danger:hover {
  background: color-mix(in srgb, var(--red) 28%, var(--panel-2));
  border-color: var(--red);
}

.sim-list { display: flex; flex-direction: column; gap: 3px; }

.sim-detail {
  border: 1px solid color-mix(in srgb, var(--violet) 35%, var(--border-2));
  border-radius: 4px;
  background: color-mix(in srgb, var(--violet) 7%, var(--panel-2));
  padding: 6px;
  margin-top: 8px;
}
.sim-detail-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 5px;
}
.sim-detail-name { font-size: 11px; color: var(--text); }

.sim-num {
  font-family: inherit;
  font-size: 10px;
  width: 92px;
  padding: 2px 4px;
  border-radius: 3px;
  background: var(--panel);
  border: 1px solid var(--border-2);
  color: var(--text);
}

.sim-step {
  font-family: inherit;
  font-size: 9px;
  padding: 2px 4px;
  border-radius: 3px;
  cursor: pointer;
  background: var(--panel);
  border: 1px solid var(--border-2);
  color: var(--text-2);
}
.sim-step:hover { border-color: var(--violet); color: var(--text); }

.sim-row {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) minmax(0, 70px) 26px 20px;
  align-items: center;
  gap: 6px;
  padding: 3px 4px;
  border-radius: 4px;
  background: var(--panel-2);
  border: 1px solid var(--border-2);
}
.sim-row.is-off { opacity: 0.4; }
.sim-row { cursor: pointer; }
.sim-row.is-sel {
  border-color: var(--violet);
  background: color-mix(in srgb, var(--violet) 12%, var(--panel-2));
}

.sim-kind {
  font-family: inherit;
  font-size: 9px;
  letter-spacing: 0.04em;
  padding: 3px 0;
  border-radius: 3px;
  cursor: pointer;
  background: color-mix(in srgb, var(--teal) 18%, var(--panel-2));
  border: 1px solid color-mix(in srgb, var(--teal) 35%, var(--border-2));
  color: color-mix(in srgb, var(--teal) 70%, var(--text));
}
.sim-kind-jam {
  background: color-mix(in srgb, var(--red) 18%, var(--panel-2));
  border-color: color-mix(in srgb, var(--red) 35%, var(--border-2));
  color: color-mix(in srgb, var(--red) 70%, var(--text));
}

.sim-row-name {
  display: flex;
  flex-direction: column;
  min-width: 0;
  font-size: 10px;
  line-height: 1.25;
}
.sim-row-name > span:first-child {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.sim-row-freq { font-size: 9px; color: var(--text-2); opacity: 0.8; }

/* Селектор з атрибутом мусить бути не слабшим за глобальний
   `input[type="range"] { width: 140px }` — інакше повзунок лишається 140 px
   і вилазить за межі колонки. */
input[type="range"].sim-row-power {
  width: 100%;
  min-width: 0;
  margin: 0;
}
.sim-row-dbm {
  font-size: 9px;
  color: var(--text-2);
  text-align: right;
}

.sim-row-del {
  font-family: inherit;
  font-size: 13px;
  line-height: 1;
  padding: 2px 0;
  border-radius: 3px;
  cursor: pointer;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-2);
}
.sim-row-del:hover { color: var(--red); border-color: color-mix(in srgb, var(--red) 40%, var(--border-2)); }

/* ============================
   Results panel
   ============================ */

.results-header {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 6px;
    margin-top: 16px;
    border-bottom: 1px solid var(--border);
}

.sort-btn {
    padding: 2px 7px;
    font-size: 10px;
    font-family: monospace;
    background: var(--panel-2);
    border: 1px solid var(--border-2);
    border-radius: 2px;
    color: var(--text-2);
    cursor: pointer;
}
.sort-btn:hover { border-color: var(--teal); color: var(--text); }
.sort-btn.active { background: color-mix(in srgb, var(--teal) 20%, var(--panel-2)); border-color: var(--teal); color: var(--teal); }

.results-list {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: 4px 6px 4px 4px;
    display: flex;
    flex-direction: column;
    gap: 2px;
    scrollbar-width: thin;
    scrollbar-color: var(--border-2) transparent;
}

.results-list::-webkit-scrollbar {
    width: 4px;
}
.results-list::-webkit-scrollbar-track {
    background: transparent;
}
.results-list::-webkit-scrollbar-thumb {
    background: var(--border-2);
    border-radius: 2px;
}
.results-list::-webkit-scrollbar-thumb:hover {
    background: var(--teal);
}

.result-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 3px 6px;
    border-radius: 3px;
    background: var(--panel-2);
    font-size: 11px;
    font-family: monospace;
    transition: opacity 0.5s;
}
.result-row-stale { opacity: 0.35; }
.signals-row { cursor: pointer; }
.signals-row:hover { background: color-mix(in srgb, var(--teal) 10%, var(--panel-2)); }
.result-row-selected { outline: 1px solid var(--teal); }
.sig-count { margin-left: 6px; color: var(--text-2); font-size: 10px; font-family: monospace; }

.result-freq  { min-width: 82px; color: var(--text); }
.result-width { min-width: 58px; color: var(--text-2); }
.result-conf  { color: var(--violet); font-size: 10px; font-weight: bold; }
.result-dur   { margin-left: auto; color: var(--text-2); font-size: 10px; padding-right: 2px; }

.sig-tag {
    padding: 1px 5px;
    border-radius: 2px;
    font-size: 10px;
    font-weight: bold;
    background: var(--border);
    color: var(--text-2);
    border: 1px solid var(--border-2);
}
.sig-tag-stat {
    background: color-mix(in srgb, var(--teal)  20%, var(--panel-2));
    color: var(--teal);
    border-color: color-mix(in srgb, var(--teal)  40%, var(--border));
}
.sig-tag-burst {
    background: color-mix(in srgb, var(--amber) 20%, var(--panel-2));
    color: var(--amber);
    border-color: color-mix(in srgb, var(--amber) 40%, var(--border));
}
.sig-tag-mod {
    background: color-mix(in srgb, var(--violet) 20%, var(--panel-2));
    color: var(--violet);
    border-color: color-mix(in srgb, var(--violet) 40%, var(--border));
}

/* ============================
   View tabs (canvas panels)
   ============================ */

.view-tabs {
  position: relative;
  height: 100%;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--tab-color, var(--border-2));
  border-radius: 3px;
  transition: border-color 0.2s ease;
  overflow: hidden;
  box-sizing: border-box;
}

.view-tabs::after {
  content: '';
  position: absolute;
  top: -1px;
  left: 3px;
  right: 3px;
  border-top: 1px solid var(--tab-color, var(--border-2));
  pointer-events: none;
  z-index: 2;
  transition: border-color 0.2s ease;
}

.view-tab-content {
  flex: 1;
  min-height: 0;
  position: relative;
  padding: 20px 4px 4px 4px;
}

/* ============================
   Inner module boxes (Control)
   ============================ */

.panel-box {
  position: relative;
  border: 1px solid var(--border-2);
  border-radius: 6px;
  background-color: var(--panel-2);
  padding: 18px 12px 12px 12px;
  margin-top: 8px;
}

.panel-box[data-title]::before {
  content: attr(data-title);
  position: absolute;
  top: -1px;
  left: 10px;
  padding: 2px 6px 1px;
  font-size: 11px;
  line-height: 1;
  letter-spacing: 0.5px;
  text-indent: 0.5px;
  border: 1px solid transparent;
  border-radius: 0 0 2px 2px;
}

.panel-box[data-title="RF"]::before {
  background-color: var(--red);
  border-color: var(--red);
  color: #fff;
}

.panel-box[data-title="RF"] {
  border-color: color-mix(in srgb, var(--red) 40%, var(--border-2));
}

.panel-box[data-title="DSP"]::before {
  background-color: var(--blue);
  border-color: var(--blue);
  color: #fff;
}

.panel-box[data-title="DSP"] {
  border-color: color-mix(in srgb, var(--blue) 40%, var(--border-2));
}

.panel-box[data-title="DISPLAY"]::before {
  background-color: var(--yellow);
  border-color: var(--yellow);
  color: var(--btn-text-dark);
}

.panel-box[data-title="DISPLAY"] {
  border-color: color-mix(in srgb, var(--yellow) 40%, var(--border-2));
}

/* ============================
   Key/Value layout helpers
   ============================ */

.kv {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 10px;
  align-items: center;
}

.kv-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 2px 0;
}

.k {
  color: var(--text-2);
}

.v {
  justify-self: end;
}

.kv-row.flash {
  box-shadow: inset 2px 0 0 0 var(--yellow);
}

/* ============================
   Frequency readout (instrument-like)
   ============================ */

.freq-readout {
  font-size: 18px;
  letter-spacing: 0.5px;
  color: var(--text);
  padding: 6px 8px;
  background: color-mix(in srgb, var(--input-bg) 70%, var(--panel));
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--border) 70%, transparent);
  border-radius: 2px;
  cursor: pointer;
  user-select: none;
}

/* ============================
   Inputs
   ============================ */

input[type="number"],
input[type="text"],
select,
textarea {
  border: 0;
  outline: none;
  font-family: inherit;
  font-size: 12px;
  background-color: var(--input-bg);
  color: var(--input-fg);
  padding: 3px 6px;
  border-radius: 2px;
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--border) 70%, transparent);
  transition: box-shadow 0.12s ease, background-color 0.12s ease;
}

input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--yellow) 55%, transparent),
    0 0 0 3px color-mix(in srgb, var(--yellow) 25%, transparent);
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 140px;
  height: 14px;
  padding: 0;
  margin-top: 4px;
  background: transparent;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 2px;
  background: color-mix(in srgb, var(--border-2) 90%, var(--panel));
  border-radius: 1px;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 3px;
  height: 14px;
  border-radius: 1px;
  background-color: var(--sand);
  margin-top: -6px;
  cursor: pointer;
}

input[type="range"]:focus-visible::-webkit-slider-thumb {
  background-color: var(--yellow);
}

/* Firefox */
input[type="range"]::-moz-range-track {
  height: 2px;
  background: color-mix(in srgb, var(--border-2) 90%, var(--panel));
  border-radius: 1px;
  border: none;
}

input[type="range"]::-moz-range-thumb {
  width: 3px;
  height: 14px;
  border-radius: 1px;
  border: none;
  background-color: var(--sand);
  cursor: pointer;
}

/* ============================
   Segmented toggle (ON/OFF)
   ============================ */

.seg {
  display: inline-flex;
  background: var(--input-bg);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--border) 70%, transparent);
  border-radius: 2px;
  overflow: hidden;
}

.seg button {
  border: 0;
  padding: 3px 8px;
  font-family: inherit;
  font-size: 12px;
  color: var(--text-2);
  background: transparent;
  cursor: pointer;
}

.seg button.is-active {
  background: color-mix(in srgb, var(--blue) 35%, transparent);
  color: var(--text);
}

.seg button.is-danger {
  color: color-mix(in srgb, var(--red) 65%, var(--text-2));
}

.seg button.is-danger.is-active {
  background: color-mix(in srgb, var(--red) 35%, transparent);
  color: var(--text);
}

.seg button:focus-visible {
  outline: none;
  box-shadow: inset 0 0 0 2px var(--focus-ring);
}

/* ============================
   Buttons (optional, MC-like)
   - You may not need them if using only segmented toggles
   ============================ */

.btn-bauhaus {
  position: relative;
  z-index: 0;
  display: inline-block;
  padding: 4px 10px;
  font-family: inherit;
  font-size: 12px;
  border: none;
  border-radius: 2px;
  cursor: pointer;
  user-select: none;
  line-height: 1;
  transform: translate(0, 0);
  transition: transform 0.06s ease;
}

.btn-bauhaus::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--btn-shadow);
  border-radius: 1px;
  transform: translate(0px, 0px);
  z-index: -1;
}

.btn-bauhaus:active {
  transform: translate(2px, 2px);
}
.btn-bauhaus:active::after {
  opacity: 0;
}

.btn-blue { background: var(--blue); color: var(--btn-text-light); }
.btn-red { background: var(--red); color: var(--btn-text-light); }
.btn-yellow { background: var(--yellow); color: var(--btn-text-dark); }

/* ============================
   Operation line (Hard switch feedback)
   ============================ */

.opline {
  margin-top: 10px;
  padding: 3px 6px;
  border-radius: 2px;
  background: var(--panel-2);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--border) 70%, transparent);
  color: var(--text-2);
  display: flex;
  gap: 8px;
  align-items: center;
  white-space: nowrap;
}

.opline .k { color: var(--sand); }
.opline .v.busy { color: var(--yellow); }
.opline .v.bad { color: var(--red); }

/* Lock UI while STOP→RECONFIG→START */
.busy-lock {
  opacity: 0.70;
  pointer-events: none;
}

/* ============================
   Demod panel
   ============================ */

.demod-freq-display {
  font-family: monospace;
  font-size: 18px;
  color: var(--teal);
  text-align: center;
  padding: 8px 0;
  letter-spacing: 1px;
}

.demod-freq-hint {
  font-size: 10px;
  color: var(--text-2);
  text-align: center;
  padding-bottom: 4px;
}

.demod-stop-btn {
  width: 100%;
  padding: 6px;
  background: color-mix(in srgb, var(--red) 20%, var(--panel-2));
  border: 1px solid var(--red);
  border-radius: 3px;
  color: var(--red);
  font-family: monospace;
  font-size: 11px;
  cursor: pointer;
  margin-bottom: 6px;
}

.demod-stop-btn:hover {
  background: color-mix(in srgb, var(--red) 35%, var(--panel-2));
}


/* ============================
   Межі шкали дБ біля графіка FFT
   ============================ */

.db-rail {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 22px;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 4px 0;
  box-sizing: border-box;
  background: var(--panel);
  border-left: 1px solid var(--border-2);
}

.db-auto {
  flex: 0 0 auto;
  font-family: inherit;
  font-size: 9px;
  line-height: 1;
  padding: 0;
  width: 14px;
  min-width: 0;
  height: 14px;
  border-radius: 2px;
  cursor: pointer;
  background: var(--panel-2);
  border: 1px solid var(--border-2);
  color: var(--text-2);
}
.db-auto.is-on {
  background: var(--yellow);
  border-color: var(--yellow);
  color: var(--btn-text-dark);
}

/* Вертикальні повзунки: верхній — стеля, нижній — підлога, як на осі поруч.
   Тут навмисно НАТИВНИЙ вигляд (appearance: auto). Спроби намалювати доріжку
   й бігунок самому через ::-webkit-slider-* у режимі writing-mode: vertical
   давали зсунутий бігунок: браузери розкладають ці псевдоелементи в
   поверненій системі осей по-різному. Нативний вертикальний повзунок
   центрований за побудовою, і його ширина — єдине, чим ми поступаємось. */
.db-slider {
  -webkit-appearance: auto;
  appearance: auto;
  writing-mode: vertical-lr;
  direction: rtl;
  flex: 1 1 0;
  min-height: 0;
  width: 16px;
  min-width: 0;
  height: auto;
  margin: 0;
  padding: 0;
  background: transparent;
  accent-color: var(--yellow);
  cursor: ns-resize;
}
.db-slider:disabled { opacity: 0.35; cursor: default; }

/* Глобальні правила нижче розраховані на горизонтальні повзунки (доріжка
   2 px заввишки, бігунок 3×14 зі зсувом). Для вертикальних їх треба зняти
   повністю, інакше вони знову зрушать бігунок. */
.db-slider::-webkit-slider-runnable-track,
.db-slider::-webkit-slider-thumb,
.db-slider::-moz-range-track,
.db-slider::-moz-range-thumb {
  all: revert;
}


/* ============================
   Вкладка ПОРТИ
   ============================ */

.port-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  color: var(--text-2);
  padding: 3px 2px 6px 2px;
}
.port-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--border-2);
  flex: 0 0 auto;
}
.port-dot.is-live { background: var(--teal); }
.port-stat { margin-left: auto; }
.port-lost { color: var(--red); margin-left: 6px; }

.port-addr {
  display: grid;
  grid-template-columns: 68px minmax(0, 1fr);
  gap: 2px 6px;
  align-items: center;
  font-size: 10px;
  color: var(--text-2);
}
.port-addr code {
  font-family: inherit;
  font-size: 10px;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--border-2);
  border-radius: 3px;
  padding: 1px 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}


/* Перемикач мови в статус-панелі — компактніший за звичайний .seg. */
.lang-seg button {
  font-size: 9px;
  padding: 2px 6px;
  min-width: 0;
}

/* ============================
   Маркери спектра
   ============================ */

.mkr-readout {
  position: absolute;
  left: 40px;
  top: 30px;
  z-index: 3;
  pointer-events: none;
  display: grid;
  grid-template-columns: auto auto auto;
  column-gap: 10px;
  row-gap: 1px;
  padding: 3px 7px;
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  color: var(--text);
  background: color-mix(in srgb, var(--panel) 82%, transparent);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--border) 70%, transparent);
  border-radius: 2px;
}

.mkr-readout .mkr-num { text-align: right; }