:root {
  --bg: #efebe4; --ink: #24211d; --muted: #7a736a; --line: rgba(36,33,29,.12);
  --glass: rgba(251,249,246,.86); --accent: #9a6b3f; --accent-ink: #fff; --shadow: 0 10px 30px rgba(40,30,20,.14);
  --r: 14px;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--ink); font: 14px/1.4 Manrope, system-ui, sans-serif; overflow: hidden; }
#app { position: fixed; inset: 0; }
#c { position: absolute; inset: 0; width: 100%; height: 100%; display: block; touch-action: none; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }

.topbar { position: absolute; top: 12px; left: 12px; right: 12px; display: flex; align-items: center; gap: 12px; pointer-events: none; }
.topbar > * { pointer-events: auto; }
.brand { display: flex; align-items: center; gap: 8px; padding: 9px 14px; background: var(--glass); backdrop-filter: blur(14px); border-radius: 999px; box-shadow: var(--shadow); white-space: nowrap; }
.brand .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); }
.brand .sub { color: var(--muted); font-size: 12px; }
.tabs { display: flex; gap: 4px; padding: 4px; background: var(--glass); backdrop-filter: blur(14px); border-radius: 999px; box-shadow: var(--shadow); margin: 0 auto; }
.tabs button { padding: 8px 16px; border-radius: 999px; font-weight: 600; color: var(--muted); transition: .2s; white-space: nowrap; }
.tabs button:hover { color: var(--ink); }
.tabs button.on { background: var(--ink); color: #fff; }
.tabs button.reveal::before { content: '⌂ '; }
.icon-btn { display: flex; align-items: center; gap: 6px; padding: 9px 14px; background: var(--glass); backdrop-filter: blur(14px); border-radius: 999px; box-shadow: var(--shadow); font-weight: 600; white-space: nowrap; }

.panel { position: absolute; top: 70px; right: 12px; bottom: 84px; width: 330px; background: var(--glass); backdrop-filter: blur(16px); border-radius: var(--r); box-shadow: var(--shadow); display: flex; transition: transform .3s; }
.panel.closed { transform: translateX(calc(100% - 34px)); }
.panel.closed .panel-toggle svg { transform: rotate(0deg); }
.panel-toggle { position: absolute; left: -2px; top: 12px; width: 34px; height: 34px; display: grid; place-items: center; color: var(--muted); }
.panel-toggle svg { transform: rotate(180deg); transition: .3s; }
.panel-body { overflow: auto; padding: 14px 16px 16px 34px; width: 100%; }
.panel h3 { margin: 6px 0 10px; font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.panel section { padding-bottom: 14px; border-bottom: 1px solid var(--line); margin-bottom: 12px; }
.seg { display: flex; background: rgba(0,0,0,.05); border-radius: 10px; padding: 3px; }
.seg button { flex: 1; padding: 7px 8px; border-radius: 8px; font-weight: 600; color: var(--muted); font-size: 13px; }
.seg button.on { background: #fff; color: var(--ink); box-shadow: 0 1px 4px rgba(0,0,0,.1); }
.note { color: var(--muted); font-size: 12.5px; margin: 8px 0 0; }
.palettes { display: grid; grid-template-columns: 1fr; gap: 6px; }
.pal { display: flex; align-items: center; gap: 10px; padding: 7px 9px; border-radius: 10px; border: 1px solid transparent; text-align: left; }
.pal:hover { background: rgba(0,0,0,.04); }
.pal.on { border-color: var(--ink); background: #fff; }
.sw { display: flex; flex-shrink: 0; border-radius: 7px; overflow: hidden; box-shadow: inset 0 0 0 1px rgba(0,0,0,.12); }
.sw i { width: 14px; height: 30px; display: block; }
.pal b { display: block; font-size: 13px; font-weight: 600; }
.pal small { color: var(--muted); font-size: 11px; }
.codes { margin-top: 10px; display: grid; gap: 4px; font-size: 12px; }
.codes div { display: flex; gap: 8px; align-items: center; }
.codes .chip { width: 14px; height: 14px; border-radius: 4px; flex-shrink: 0; box-shadow: inset 0 0 0 1px rgba(0,0,0,.15); }
.codes .role { color: var(--muted); min-width: 92px; }
#spec table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
#spec td { padding: 4px 0; border-bottom: 1px dashed var(--line); vertical-align: top; }
#spec td:last-child { text-align: right; color: var(--muted); white-space: nowrap; padding-left: 8px; }
#spec .legend { font-size: 12px; color: var(--muted); margin-top: 8px; }
.fine { color: var(--muted); font-size: 11.5px; margin: 0; }

.tools { position: absolute; left: 12px; top: 70px; display: flex; flex-direction: column; gap: 6px; }
.tool { display: flex; align-items: center; gap: 8px; padding: 9px 13px; background: var(--glass); backdrop-filter: blur(14px); border-radius: 12px; box-shadow: var(--shadow); font-weight: 600; font-size: 13px; text-align: left; }
.tool .ic { width: 18px; text-align: center; color: var(--accent); }
.tool.on { background: var(--ink); color: #fff; }
.tool.on .ic { color: #f0c58f; }
.tool[hidden] { display: none; }
.tool.primary { background: var(--accent); color: #fff; padding: 12px 18px; font-size: 14.5px; border-radius: 14px; box-shadow: 0 10px 26px rgba(154,107,63,.45); gap: 10px; animation: pulse 2.6s ease-in-out 3; }
.tool.primary:hover { filter: brightness(1.08); }
.tool.primary.on { background: var(--ink); box-shadow: 0 10px 26px rgba(0,0,0,.3); }
@keyframes pulse { 50% { box-shadow: 0 0 0 8px rgba(154,107,63,.18), 0 10px 26px rgba(154,107,63,.45); } }
.legend b { color: var(--ink); }

.cams { position: absolute; left: 12px; right: 354px; bottom: 14px; display: flex; gap: 6px; overflow-x: auto; padding: 4px; scrollbar-width: none; }
.cams::-webkit-scrollbar { display: none; }
.cams button { flex-shrink: 0; padding: 10px 14px; background: var(--glass); backdrop-filter: blur(14px); border-radius: 12px; box-shadow: var(--shadow); font-weight: 600; font-size: 13px; }
.cams button.on { background: var(--accent); color: var(--accent-ink); }
.cams .lbl { align-self: center; color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .08em; padding: 0 6px; flex-shrink: 0; }

.walkpad { position: absolute; inset: auto 0 14px 0; display: flex; flex-direction: column; align-items: center; gap: 10px; pointer-events: none; }
.walkpad > * { pointer-events: auto; }
.walkpad[hidden], [hidden] { display: none !important; }
.walkpad .hint { background: var(--glass); padding: 6px 12px; border-radius: 999px; font-size: 12px; color: var(--muted); }
.pad { display: grid; grid-template-columns: repeat(3, 52px); grid-template-rows: 52px 52px; gap: 6px; }
.pad button { background: var(--glass); backdrop-filter: blur(10px); border-radius: 12px; box-shadow: var(--shadow); font-size: 18px; user-select: none; -webkit-user-select: none; touch-action: none; }
.pad button[data-k="f"] { grid-column: 2; }
.pad button[data-k="l"] { grid-column: 1; grid-row: 2; }
.pad button[data-k="b"] { grid-column: 2; grid-row: 2; }
.pad button[data-k="r"] { grid-column: 3; grid-row: 2; }
.walkpad .exit { background: var(--ink); color: #fff; padding: 9px 16px; border-radius: 999px; font-weight: 600; }
body.walking .cams, body.walking .panel { display: none; }
.padrow { display: flex; gap: 14px; align-items: flex-end; }
.pad-v { display: none; flex-direction: column; gap: 6px; }
.pad-v button { width: 52px; height: 52px; background: var(--glass); backdrop-filter: blur(10px); border-radius: 12px; box-shadow: var(--shadow); font-size: 20px; touch-action: none; user-select: none; }
body.flying .pad-v { display: flex; }
.h-fly { display: none; } body.flying .h-fly { display: inline; } body.flying .h-walk { display: none; }

.loader { position: absolute; inset: 0; display: grid; place-content: center; justify-items: center; gap: 14px; background: var(--bg); color: var(--muted); transition: opacity .5s; z-index: 5; }
.loader.hide { opacity: 0; pointer-events: none; }
.spin { width: 34px; height: 34px; border-radius: 50%; border: 3px solid var(--line); border-top-color: var(--accent); animation: sp 1s linear infinite; }
@keyframes sp { to { transform: rotate(360deg); } }

@media (max-width: 860px) {
  .brand .sub, .icon-btn span { display: none; }
  .brand { padding: 9px 12px; }
  .brand b { display: none; }
  .tabs button { padding: 7px 11px; font-size: 13px; }
  .topbar { top: 8px; left: 8px; right: 8px; gap: 6px; }
  .tools { top: 60px; left: 8px; }
  .tool:not(.primary) span:not(.ic) { display: none; }
  .tool.primary { padding: 10px 14px; font-size: 13px; }
  .tool { padding: 10px; }
  .panel { top: auto; left: 8px; right: 8px; bottom: 64px; width: auto; max-height: 46vh; }
  .panel { transition: max-height .3s; }
  .panel.closed { transform: none; max-height: 40px; overflow: hidden; }
  .panel.closed .panel-body { overflow: hidden; }
  .panel-toggle { left: auto; right: 6px; top: 3px; }
  .panel-toggle svg { transform: rotate(-90deg); }
  .panel.closed .panel-toggle svg { transform: rotate(90deg); }
  .panel-body { padding: 12px 14px 14px; }
  .cams { left: 8px; right: 8px; bottom: 8px; }
}
@media (max-width: 520px) {
  .brand { display: none; }
  .tabs { margin: 0; flex: 1; justify-content: space-between; }
  .tabs button { padding: 7px 9px; font-size: 12.5px; }
  .tabs button.reveal::before { content: ''; }
  .icon-btn { padding: 9px 10px; }
  .cams .lbl { display: none; }
}