/* =====================================================================
   Carino Multiviewer — stylesheet
   Design system ported from carino.systems (gold-on-black, IBM Plex).
   No Bootstrap, no jQuery. Pure CSS, CSS Grid layout.
   ===================================================================== */

:root {
  /* Palette (from carino.systems) */
  --bg-header:    #050505;
  --bg-app:       #0a0a0a;
  --bg-panel:     #0d0d0d;
  --bg-card:      #111111;
  --bg-elev:      #161616;
  --accent:       #eab308;          /* sharp gold */
  --accent-2:     #b45309;
  --accent-faint: rgba(234,179,8,0.06);
  --accent-glow:  rgba(234,179,8,0.18);
  --accent-dim:   rgba(234,179,8,0.30);
  --border:       #262626;
  --border-hv:    #eab308;
  --text:         #ffffff;
  --text-sec:     #a3a3a3;
  --text-muted:   #8a8a8a;   /* ≥4.5:1 on the dark backgrounds (WCAG AA) */
  --live:         #ef4444;
  --ok:           #22c55e;

  --mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: 'IBM Plex Sans', system-ui, -apple-system, sans-serif;
  --display: 'Red Hat Display', var(--sans);

  --nav-h: 70px;
  --sidebar-w: 320px;
  --tile-gap: 8px;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html, body { height: 100%; }

body {
  background: var(--bg-app);
  color: var(--text);
  font-family: var(--sans);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

button { font-family: inherit; }
a { color: inherit; }

/* visible keyboard focus everywhere (rows, buttons, inputs, links) */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
.chan:focus-visible { outline-offset: -2px; }

/* ----------------------------------------------------------------- *
 * Carino navbar
 * ----------------------------------------------------------------- */
.top-header {
  height: var(--nav-h);
  flex-shrink: 0;
  background: linear-gradient(180deg, #0f0f0f 0%, #050505 100%);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  position: relative;
  z-index: 200;
  gap: 16px;
}
.header-left  { display: flex; align-items: center; gap: 22px; min-width: 0; }
.header-right { display: flex; align-items: center; gap: 12px; }

.brand-name {
  font-family: var(--display);
  font-size: 1.7rem; font-weight: 900; line-height: 1;
  background: linear-gradient(130deg, #fef08a 0%, #eab308 50%, #b45309 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  cursor: pointer; white-space: nowrap; text-decoration: none;
}
.brand-name .app-tag {
  -webkit-text-fill-color: var(--text);
  font-family: var(--mono); font-size: .62rem; font-weight: 700;
  letter-spacing: .14em; text-transform: uppercase;
  border: 1px solid var(--border); border-radius: 4px;
  padding: 3px 7px; margin-left: 12px; vertical-align: middle;
  color: var(--accent);
}

.header-clock {
  display: flex; align-items: baseline; gap: 10px;
  border-left: 1px solid var(--border); padding-left: 22px;
}
.clock-time { font-family: var(--mono); font-size: 1.15rem; font-weight: 700; }
.clock-tz {
  font-family: var(--mono); font-size: .62rem; font-weight: 700;
  color: var(--bg-header); background: var(--accent);
  padding: 2px 6px; border-radius: 3px;
}
.brand-greeting { font-family: var(--mono); font-size: .72rem; color: var(--text-sec); margin-left: 6px; }

.social-row { display: flex; gap: 8px; }
.icon-btn {
  width: 32px; height: 32px;
  border: 1px solid var(--border); border-radius: 4px;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); transition: .2s; text-decoration: none;
  background: transparent; cursor: pointer;
}
.icon-btn:hover {
  border-color: var(--accent); color: var(--bg-header);
  background: var(--accent); transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--accent-glow);
}
.icon-btn svg { width: 15px; height: 15px; }

.status-toggle {
  display: flex; align-items: center; gap: 8px;
  background: transparent; border: 1px solid var(--border);
  color: var(--text-sec); font-family: var(--mono);
  font-size: .72rem; text-transform: uppercase; letter-spacing: .1em;
  padding: 0 14px; height: 32px; border-radius: 4px; cursor: pointer; transition: .2s;
}
.status-toggle:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-faint); }
.pulse-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 8px var(--accent);
  animation: pulse-glow 2s ease-in-out infinite;
}
@keyframes pulse-glow { 0%,100% { opacity: 1; } 50% { opacity: .35; } }

/* Diagnostics dropdown */
.diag-dropdown {
  position: absolute; top: calc(var(--nav-h) - 6px); right: 16px;
  width: 280px; background: var(--bg-card);
  border: 1px solid var(--border); border-radius: 8px;
  padding: 16px; box-shadow: 0 18px 40px rgba(0,0,0,.6);
  opacity: 0; visibility: hidden; transform: translateY(-8px);
  transition: .18s; z-index: 210;
}
.diag-dropdown.open { opacity: 1; visibility: visible; transform: translateY(0); }
.diag-section {
  font-family: var(--mono); font-size: .6rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--text-muted);
  margin: 12px 0 6px; border-bottom: 1px solid var(--border); padding-bottom: 4px;
}
.diag-section:first-child { margin-top: 0; }
.diag-row { display: flex; justify-content: space-between; align-items: center; font-size: .8rem; padding: 3px 0; }
.diag-lbl { color: var(--text-sec); }
.diag-val { font-family: var(--mono); color: var(--text); }
.diag-val.good { color: var(--ok); }
.diag-val.warn { color: var(--accent); }

/* ----------------------------------------------------------------- *
 * App shell
 * ----------------------------------------------------------------- */
.app-body { flex: 1; display: flex; min-height: 0; }

/* ----------------------------------------------------------------- *
 * Sidebar / Control Room
 * ----------------------------------------------------------------- */
.sidebar {
  width: var(--sidebar-w); flex-shrink: 0;
  background: var(--bg-panel); border-right: 1px solid var(--border);
  display: flex; flex-direction: column; min-height: 0;
  transition: margin-left .25s ease, width .25s ease;
}
body.sidebar-collapsed .sidebar { margin-left: calc(var(--sidebar-w) * -1); }

.sidebar-head {
  flex-shrink: 0; padding: 14px 16px 10px;
  border-bottom: 1px solid var(--border);
}
.sidebar-title {
  font-family: var(--mono); font-size: .68rem; letter-spacing: .18em;
  text-transform: uppercase; color: var(--accent); display: flex;
  align-items: center; gap: 8px; margin-bottom: 12px;
}
.sidebar-title .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 8px var(--accent); }

.search-box { position: relative; }
.search-box input {
  width: 100%; background: var(--bg-app); border: 1px solid var(--border);
  border-radius: 6px; color: var(--text); font-family: var(--sans);
  font-size: .85rem; padding: 9px 30px 9px 32px; outline: none; transition: .15s;
}
.search-box input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-faint); }
.search-box .search-ico { position: absolute; left: 10px; top: 50%; transform: translateY(-50%); color: var(--text-muted); font-size: .9rem; }
.search-box .search-clear {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  background: none; border: none; color: var(--text-muted); cursor: pointer;
  font-size: 1rem; padding: 4px; display: none;
}
.search-box.has-text .search-clear { display: block; }

.sidebar-actions { display: flex; gap: 6px; margin-top: 10px; }
.btn {
  font-family: var(--sans); font-size: .78rem; font-weight: 500;
  border: 1px solid var(--border); background: var(--bg-elev); color: var(--text);
  border-radius: 6px; padding: 7px 11px; cursor: pointer; transition: .15s;
  display: inline-flex; align-items: center; gap: 6px; white-space: nowrap;
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn.btn-accent { background: var(--accent); color: #000; border-color: var(--accent); font-weight: 700; }
.btn.btn-accent:hover { background: #fde047; color: #000; }
.btn.btn-ghost { background: transparent; }
.btn.flex1 { flex: 1; justify-content: center; }
.btn:disabled { opacity: .45; cursor: not-allowed; }

.sidebar-scroll { flex: 1; overflow-y: auto; overflow-x: hidden; }

/* Active strip */
.active-strip { border-bottom: 1px solid var(--border); padding: 8px 12px 10px; background: rgba(234,179,8,.03); }
.active-strip .strip-head {
  display: flex; align-items: center; justify-content: space-between;
  font-family: var(--mono); font-size: .62rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--text-muted); margin-bottom: 8px;
}
.active-strip .strip-head .count { color: var(--accent); font-weight: 700; }
.active-chips { display: flex; flex-wrap: wrap; gap: 5px; }
.active-chip {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--bg-elev); border: 1px solid var(--accent-dim);
  border-radius: 20px; padding: 3px 6px 3px 9px; font-size: .72rem; max-width: 100%;
}
.active-chip span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 120px; }
.active-chip button { background: none; border: none; color: var(--text-muted); cursor: pointer; font-size: .95rem; line-height: 1; padding: 0 2px; }
.active-chip button:hover { color: var(--live); }

/* Category groups */
.cat-group { border-bottom: 1px solid var(--border); }
.cat-head {
  width: 100%; display: flex; align-items: center; gap: 10px;
  background: transparent; border: none; color: var(--text);
  padding: 12px 14px; cursor: pointer; text-align: left; transition: .12s;
}
.cat-head:hover { background: var(--accent-faint); }
.cat-head .chevron { color: var(--text-muted); transition: transform .18s; font-size: .7rem; }
.cat-group.open .cat-head .chevron { transform: rotate(90deg); }
.cat-head .flag { font-size: 1.1rem; }
.cat-head .cat-name { flex: 1; font-weight: 500; font-size: .92rem; }
.cat-head .cat-count { font-family: var(--mono); font-size: .68rem; color: var(--text-muted); background: var(--bg-app); border: 1px solid var(--border); border-radius: 10px; padding: 1px 8px; }
.cat-body { display: none; }
.cat-group.open .cat-body { display: block; }

/* Channel row */
.chan {
  display: flex; align-items: center; gap: 11px;
  padding: 9px 14px 9px 18px; cursor: pointer; transition: .12s;
  border-left: 3px solid transparent; position: relative;
}
.chan:hover { background: var(--bg-card); }
.chan.active { border-left-color: var(--accent); background: rgba(234,179,8,.05); }
.chan .avatar {
  position: relative; overflow: hidden;
  width: 42px; height: 42px; border-radius: 50%; flex-shrink: 0;
  border: 2px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--display); font-weight: 900; font-size: .8rem; color: #fff;
}
.chan .avatar img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.chan.active .avatar { border-color: var(--accent); }
.chan .meta { flex: 1; min-width: 0; }
.chan .meta .nm { font-size: .88rem; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.chan .meta .ds { font-size: .72rem; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.chan .badges { display: flex; align-items: center; gap: 5px; flex-shrink: 0; }
.badge {
  font-family: var(--mono); font-size: .56rem; letter-spacing: .04em; text-transform: uppercase;
  border-radius: 3px; padding: 2px 5px; border: 1px solid var(--border); color: var(--text-sec);
}
.badge.note { color: var(--accent); border-color: var(--accent-dim); }
.badge.live { color: #fff; background: var(--live); border-color: var(--live); }
.badge.off  { color: var(--text-muted); }
.chan .row-actions { display: none; gap: 4px; }
.chan:hover .row-actions { display: flex; }
.chan .row-actions button { background: none; border: none; color: var(--text-muted); cursor: pointer; padding: 2px; border-radius: 4px; font-size: .85rem; }
.chan .row-actions button:hover { color: var(--accent); background: var(--bg-elev); }

.cat-empty, .no-results { padding: 18px 16px; color: var(--text-muted); font-size: .82rem; text-align: center; }

/* ----------------------------------------------------------------- *
 * Stage / video grid
 * ----------------------------------------------------------------- */
.stage { flex: 1; display: flex; flex-direction: column; min-width: 0; min-height: 0; }

.toolbar {
  flex-shrink: 0; height: 48px; display: flex; align-items: center; gap: 10px;
  padding: 0 14px; border-bottom: 1px solid var(--border); background: var(--bg-panel);
}
.toolbar .sb-toggle {
  width: 34px; height: 34px; border: 1px solid var(--border); background: var(--bg-elev);
  border-radius: 6px; color: var(--text); cursor: pointer; font-size: 1rem; flex-shrink: 0;
}
.toolbar .sb-toggle:hover { border-color: var(--accent); color: var(--accent); }
.toolbar .spacer { flex: 1; }
.toolbar .tb-label { font-family: var(--mono); font-size: .66rem; letter-spacing: .1em; text-transform: uppercase; color: var(--text-muted); }

.layout-seg { display: flex; border: 1px solid var(--border); border-radius: 6px; overflow: hidden; flex-shrink: 0; }
.layout-seg button {
  background: var(--bg-elev); border: none; color: var(--text-sec);
  font-family: var(--mono); font-size: .74rem; padding: 6px 10px; cursor: pointer;
  border-right: 1px solid var(--border); transition: .12s;
}
.layout-seg button:last-child { border-right: none; }
.layout-seg button:hover { color: var(--accent); }
.layout-seg button.active { background: var(--accent); color: #000; font-weight: 700; }

.grid-wrap { flex: 1; overflow: hidden; padding: var(--tile-gap); min-height: 0; position: relative; }
.grid { display: grid; gap: var(--tile-gap); height: 100%; }

/* Focus mode: highlight the spotlight tile */
.tile.tile-main { outline: 2px solid var(--accent); outline-offset: -2px; }

/* Motion mode: auto-scrolling wall of channel cards */
.motion-grid {
  display: none; height: 100%; overflow-y: auto; align-content: start;
  grid-template-columns: repeat(auto-fill, minmax(155px, 1fr));
  grid-auto-rows: 138px;   /* fixed rows so the wall overflows & auto-scrolls */
  gap: var(--tile-gap);
}
.motion-controls, .focus-controls { display: none; gap: 6px; }
body.is-motion .motion-controls { display: flex; }
body.mode-focus .focus-controls { display: flex; }
body.is-motion #muteAllBtn { display: none; }
.btn.on { background: var(--accent); color: #000; border-color: var(--accent); font-weight: 700; }

.m-card {
  position: relative; border: 1px solid var(--border); border-radius: 8px;
  overflow: hidden; cursor: pointer; background: var(--bg-card); transition: .15s;
  display: flex; flex-direction: column;
}
.m-card:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: 0 6px 18px rgba(0,0,0,.5); }
.m-card.on { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-glow); }
.m-poster { flex: 1; min-height: 0; position: relative; display: flex; align-items: center; justify-content: center; }
.m-poster img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.m-poster span { font-family: var(--display); font-weight: 900; font-size: 1.5rem; color: #fff; opacity: .85; }
.m-info { padding: 7px 9px; }
.m-info .m-nm { font-size: .82rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.m-info .m-ds { font-size: .68rem; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.m-badge { position: absolute; top: 6px; left: 6px; font-family: var(--mono); font-size: .56rem; text-transform: uppercase; background: var(--accent); color: #000; border-radius: 3px; padding: 2px 5px; font-weight: 700; }
.m-state { position: absolute; top: 6px; right: 6px; font-family: var(--mono); font-size: .58rem; font-weight: 700; background: rgba(0,0,0,.7); color: var(--text); border-radius: 3px; padding: 2px 6px; }
.m-card.on .m-state { background: var(--accent); color: #000; }
.motion-empty { grid-column: 1 / -1; padding: 40px; text-align: center; color: var(--text-muted); }

/* Tile — fills its grid cell so the whole stage is used */
.tile {
  position: relative; background: #000; border: 1px solid var(--border);
  border-radius: 8px; overflow: hidden; display: flex; flex-direction: column;
  min-height: 0; min-width: 0;
}
.tile.dragging { opacity: .4; }
.tile.drop-target { outline: 2px dashed var(--accent); outline-offset: -2px; }
.tile iframe, .tile video { flex: 1; width: 100%; height: 100%; border: 0; display: block; background: #000; min-height: 0; }
.tile video { object-fit: contain; }

.tile-bar {
  position: absolute; top: 0; left: 0; right: 0; z-index: 3;
  display: flex; align-items: center; gap: 8px; padding: 7px 9px;
  background: linear-gradient(180deg, rgba(0,0,0,.82) 0%, rgba(0,0,0,0) 100%);
  opacity: 0; transition: opacity .15s; pointer-events: none;
}
.tile:hover .tile-bar, .tile.show-bar .tile-bar, .tile:focus-within .tile-bar { opacity: 1; pointer-events: auto; }
.tile-bar .drag { cursor: grab; color: var(--text-sec); }
.tile-bar .t-title { flex: 1; font-size: .8rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; text-shadow: 0 1px 3px #000; }
.tile-bar .t-btn {
  width: 26px; height: 26px; border: none; border-radius: 5px; cursor: pointer;
  background: rgba(20,20,20,.85); color: var(--text); display: flex;
  align-items: center; justify-content: center; font-size: .8rem; transition: .12s;
}
.tile-bar .t-btn:hover { background: var(--accent); color: #000; }
.tile-bar .t-btn.on { background: var(--accent); color: #000; }
.tile .t-live { position: absolute; left: 9px; bottom: 9px; z-index: 3; }

/* Empty state */
.empty {
  flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; color: var(--text-muted); gap: 14px; padding: 40px;
}
.empty .em-logo { width: 88px; height: 88px; opacity: .5; }
.empty h2 { font-family: var(--display); font-weight: 900; font-size: 1.6rem; color: var(--text-sec); }
.empty p { max-width: 440px; font-size: .9rem; line-height: 1.5; }
.empty .em-kbd { font-family: var(--mono); background: var(--bg-elev); border: 1px solid var(--border); border-radius: 4px; padding: 1px 7px; color: var(--accent); }

/* ----------------------------------------------------------------- *
 * Modals
 * ----------------------------------------------------------------- */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.7); backdrop-filter: blur(3px);
  z-index: 300; display: none; align-items: center; justify-content: center; padding: 20px;
}
.modal-overlay.open { display: flex; }
.modal {
  width: 100%; max-width: 460px; max-height: 88vh; overflow-y: auto;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px;
  box-shadow: 0 30px 70px rgba(0,0,0,.7);
}
.modal-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 20px; border-bottom: 1px solid var(--border);
}
.modal-head h3 { font-family: var(--display); font-weight: 900; font-size: 1.15rem; }
.modal-head .close { background: none; border: none; color: var(--text-muted); font-size: 1.4rem; cursor: pointer; line-height: 1; }
.modal-head .close:hover { color: var(--text); }
.modal-body { padding: 20px; }
.modal-foot { padding: 14px 20px; border-top: 1px solid var(--border); display: flex; gap: 10px; justify-content: flex-end; }

.field { margin-bottom: 15px; }
.field label { display: block; font-size: .76rem; font-family: var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--text-sec); margin-bottom: 6px; }
.field input, .field select, .field textarea {
  width: 100%; background: var(--bg-app); border: 1px solid var(--border); border-radius: 6px;
  color: var(--text); font-family: var(--sans); font-size: .9rem; padding: 10px 12px; outline: none; transition: .15s;
}
.field textarea { resize: vertical; min-height: 64px; font-family: var(--mono); font-size: .8rem; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-faint); }
.field .hint { font-size: .72rem; color: var(--text-muted); margin-top: 5px; line-height: 1.4; }
.field .hint a { color: var(--accent); }
.detected { font-family: var(--mono); font-size: .72rem; color: var(--ok); margin-top: 5px; min-height: 1em; line-height: 1.4; }
.detected.err { color: var(--live); }
.detected.warn { color: var(--accent); }
.row2 { display: flex; gap: 12px; }
.row2 > * { flex: 1; }

.toast {
  position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--bg-elev); border: 1px solid var(--accent-dim); color: var(--text);
  padding: 11px 18px; border-radius: 8px; font-size: .85rem; z-index: 400;
  opacity: 0; transition: .25s; box-shadow: 0 10px 30px rgba(0,0,0,.5); pointer-events: none;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* Scrollbars */
*::-webkit-scrollbar { width: 9px; height: 9px; }
*::-webkit-scrollbar-track { background: var(--bg-app); }
*::-webkit-scrollbar-thumb { background: #2c2c2c; border-radius: 6px; border: 2px solid var(--bg-app); }
*::-webkit-scrollbar-thumb:hover { background: var(--accent-2); }

/* ----------------------------------------------------------------- *
 * Responsive
 * ----------------------------------------------------------------- */
@media (max-width: 820px) {
  :root { --sidebar-w: min(84vw, 340px); }
  .header-clock, .brand-greeting { display: none; }
  .top-header { padding: 0 14px; }
  .sidebar { position: absolute; top: 0; bottom: 0; left: 0; z-index: 150; box-shadow: 12px 0 40px rgba(0,0,0,.6); }
  body:not(.sidebar-collapsed) .stage::after {
    content: ''; position: absolute; inset: 0; background: rgba(0,0,0,.5); z-index: 140;
  }
  .stage { position: relative; }
  .toolbar { gap: 8px; padding: 0 10px; }
  .toolbar .tb-label { display: none; }   /* hide "Layout" + on-air text; chips/diag still report it */
}
@media (max-width: 560px) {
  .brand-name .app-tag { display: none; }
  .status-toggle span { display: none; }
  .status-toggle { padding: 0 10px; }
  #muteAllBtn { padding: 7px 9px; }        /* keep icon + short label */
}