:root {
  color-scheme: dark;
  --bg: #05070b;
  --panel: rgba(11, 15, 22, .92);
  --panel-solid: #0b0f16;
  --line: rgba(255,255,255,.13);
  --text: #f6f7f9;
  --muted: #94a0b2;
  --accent: #b7f65f;
  --accent-strong: #86d12b;
  --danger: #ff5964;
  --grid-top: 0px;
  --grid-bottom: 0px;
  --radius: 14px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
button, input { font: inherit; }
button { color: inherit; }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.eyebrow { margin: 0 0 4px; color: var(--accent); font-size: .72rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }

.brand {
  position: fixed;
  z-index: 30;
  top: max(12px, env(safe-area-inset-top));
  left: max(12px, env(safe-area-inset-left));
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(5,7,11,.76);
  backdrop-filter: blur(14px);
  box-shadow: 0 8px 30px rgba(0,0,0,.24);
  font-size: .83rem;
  font-weight: 900;
  letter-spacing: .05em;
}
.brand small { color: var(--muted); font-size: .68rem; font-weight: 700; letter-spacing: 0; }
.brand__mark { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 14px rgba(183,246,95,.75); }

.menu-button {
  position: fixed;
  z-index: 40;
  top: max(12px, env(safe-area-inset-top));
  right: max(12px, env(safe-area-inset-right));
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: rgba(11,15,22,.92);
  cursor: pointer;
  font-size: 1.15rem;
  box-shadow: 0 10px 30px rgba(0,0,0,.3);
}

.control-panel {
  position: fixed;
  z-index: 35;
  top: max(64px, calc(env(safe-area-inset-top) + 62px));
  right: max(12px, env(safe-area-inset-right));
  width: min(440px, calc(100vw - 24px));
  display: grid;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  backdrop-filter: blur(18px);
  box-shadow: 0 18px 70px rgba(0,0,0,.5);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px) scale(.98);
  transition: opacity .18s ease, transform .18s ease;
}
.control-panel.is-open { opacity: 1; pointer-events: auto; transform: none; }
.layout-switcher { display: grid; grid-template-columns: repeat(5, 1fr); gap: 4px; padding: 4px; border: 1px solid var(--line); border-radius: 11px; background: #070a0f; }
.layout-switcher button, .button, .tile__toolbar button {
  border: 1px solid transparent;
  border-radius: 9px;
  background: #111722;
  cursor: pointer;
  transition: transform .12s ease, background .12s ease, border-color .12s ease;
}
.layout-switcher button { min-height: 38px; color: var(--muted); font-weight: 800; }
.layout-switcher button.is-active { color: #071006; background: var(--accent); }
.control-panel__actions { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; }
.control-panel__actions .button:last-child { grid-column: 1 / -1; }
.button--install { grid-column: 1 / -1; color: #071006; background: var(--accent); }
.button { min-height: 40px; padding: 8px 12px; border-color: var(--line); font-weight: 750; }
.button--primary { color: #071006; border-color: transparent; background: var(--accent); }
button:hover { border-color: rgba(183,246,95,.55); }
button:active { transform: scale(.97); }
button:focus-visible, input:focus-visible { outline: 3px solid rgba(183,246,95,.42); outline-offset: 2px; }
.toggle { display: flex; align-items: center; gap: 9px; color: #dce3ec; font-size: .86rem; }
.toggle input { width: 18px; height: 18px; accent-color: var(--accent-strong); }

.grid {
  position: fixed;
  inset: var(--grid-top) 0 var(--grid-bottom);
  display: grid;
  background: #000;
}
.grid[data-layout="2x2"] { grid-template: repeat(2, 1fr) / repeat(2, 1fr); }
.grid[data-layout="3x3"] { grid-template: repeat(3, 1fr) / repeat(3, 1fr); }
.grid[data-layout="4x4"] { grid-template: repeat(4, 1fr) / repeat(4, 1fr); }
.grid[data-layout="2x4"] { grid-template: repeat(4, 1fr) / repeat(2, 1fr); }
.grid[data-layout="2x5"] { grid-template: repeat(5, 1fr) / repeat(2, 1fr); }

.tile { position: relative; min-width: 0; min-height: 0; overflow: hidden; background: #000; border: 1px solid rgba(255,255,255,.045); }
.tile iframe, .tile video { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; background: #000; object-fit: contain; }
.tile__toolbar { position: absolute; z-index: 8; top: 7px; right: 7px; display: flex; gap: 5px; opacity: 0; transform: translateY(-4px); transition: opacity .15s ease, transform .15s ease; }
.tile:hover .tile__toolbar, .tile:focus-within .tile__toolbar { opacity: 1; transform: none; }
.tile__toolbar button { width: 34px; height: 34px; border-color: var(--line); background: rgba(5,7,11,.78); backdrop-filter: blur(9px); }
.tile__empty { position: absolute; inset: 0; display: grid; place-content: center; justify-items: center; gap: 12px; color: var(--muted); background: radial-gradient(circle at 50% 40%, #101721, #05070b 70%); font-size: .82rem; }
.tile__empty.is-hidden { display: none; }
.tile__clock { position: absolute; inset: 0; display: grid; place-items: center; background: radial-gradient(circle, #10180d, #020402 70%); }
.tile__clock time { color: var(--accent); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: clamp(2.5rem, 10vw, 8rem); font-weight: 900; letter-spacing: -.06em; text-shadow: 0 0 35px rgba(183,246,95,.22); }
.offline { position: absolute; inset: 0; z-index: 5; display: grid; place-items: center; padding: 18px; background: linear-gradient(145deg, #0c1017, #07090d); text-align: center; }
.offline strong { display: block; margin-bottom: 9px; color: #fff; font-size: clamp(.8rem, 1.5vw, 1.05rem); }
.offline p { max-width: 34ch; margin: 0; color: var(--muted); font-size: clamp(.7rem, 1.1vw, .9rem); line-height: 1.5; }
.offline__dot { color: var(--danger); }
.tile.is-dragging { opacity: .45; }
.tile.is-drop-target { outline: 3px solid var(--accent); outline-offset: -3px; }

.picker { width: min(960px, 94vw); max-width: none; padding: 0; border: 1px solid var(--line); border-radius: 18px; background: #0b0f16; color: var(--text); box-shadow: 0 30px 110px rgba(0,0,0,.72); }
.picker::backdrop { background: rgba(0,0,0,.72); backdrop-filter: blur(5px); }
.picker__shell { margin: 0; }
.picker__header { display: flex; justify-content: space-between; align-items: center; padding: 18px 20px; border-bottom: 1px solid var(--line); }
.picker__header h1 { margin: 0; font-size: 1.25rem; }
.picker__body { display: grid; grid-template-columns: 210px 1fr; min-height: 480px; }
.categories { display: flex; flex-direction: column; gap: 6px; padding: 14px; border-right: 1px solid var(--line); overflow: auto; }
.categories button { padding: 10px 12px; border: 1px solid transparent; border-radius: 9px; background: transparent; text-align: left; cursor: pointer; }
.categories button.is-active { color: #071006; background: var(--accent); font-weight: 800; }
.picker__results { padding: 14px; }
.search input { width: 100%; height: 44px; padding: 0 14px; border: 1px solid var(--line); border-radius: 11px; background: #070a0f; color: var(--text); }
.channels { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; max-height: 58vh; margin-top: 12px; overflow: auto; }
.channel { min-height: 70px; padding: 12px; border: 1px solid var(--line); border-radius: 11px; background: #111722; cursor: pointer; text-align: left; }
.channel strong { display: block; margin-bottom: 5px; }
.channel small { color: var(--muted); }
.channels__empty { grid-column: 1 / -1; padding: 40px; color: var(--muted); text-align: center; }

.ad-banner { position: fixed; z-index: 20; left: 0; right: 0; display: none; min-height: 40px; overflow: hidden; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #07090d; }
.ad-card { width: 100%; height: 100%; transform: translateX(-110%); transition: transform .65s cubic-bezier(.25,.8,.25,1); }
.ad-card a { display: flex; align-items: center; justify-content: center; width: 100%; height: 100%; }
.ad-card img { display: block; width: 100%; height: 100%; max-width: 100%; max-height: 100%; object-fit: contain; object-position: center; }
.banner-overlay { position: absolute; bottom: 7px; z-index: 2; padding: 4px 9px; border: 1px solid var(--line); border-radius: 8px; background: rgba(0,0,0,.62); color: var(--accent); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-weight: 900; line-height: 1; pointer-events: none; }
.banner-overlay--visitors { left: 9px; }
.banner-overlay--clock { right: 9px; }

.toast { position: fixed; z-index: 60; left: 50%; bottom: calc(max(14px, env(safe-area-inset-bottom)) + var(--grid-bottom)); max-width: min(560px, calc(100vw - 28px)); padding: 10px 14px; border: 1px solid var(--line); border-radius: 999px; background: rgba(11,15,22,.94); color: var(--text); opacity: 0; pointer-events: none; transform: translate(-50%, 8px); transition: opacity .18s ease, transform .18s ease; box-shadow: 0 10px 40px rgba(0,0,0,.4); font-size: .82rem; }
.toast.is-visible { opacity: 1; transform: translate(-50%, 0); }
.toast.is-error { border-color: rgba(255,89,100,.55); color: #ffd6d9; }

@media (hover: none) { .tile__toolbar { opacity: .88; transform: none; } }
@media (max-width: 760px) {
  .brand small { display: none; }
  .picker__body { grid-template-columns: 1fr; }
  .categories { flex-direction: row; border-right: 0; border-bottom: 1px solid var(--line); }
  .categories button { white-space: nowrap; }
  .channels { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .banner-overlay { bottom: max(4px, env(safe-area-inset-bottom)); padding: 3px 6px; border-radius: 6px; }
  .banner-overlay--visitors { left: max(5px, env(safe-area-inset-left)); }
  .banner-overlay--clock { right: max(5px, env(safe-area-inset-right)); }
}
@media (max-width: 440px) {
  .control-panel { max-height: calc(100vh - 82px); overflow: auto; }
  .layout-switcher { grid-template-columns: repeat(3, 1fr); }
  .channels { grid-template-columns: 1fr; }
  .tile__toolbar { top: 4px; right: 4px; gap: 3px; }
  .tile__toolbar button { width: 31px; height: 31px; }
}
@media (max-height: 480px) {
  .banner-overlay { bottom: 3px; padding: 2px 5px; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; } }