:root{--tcl-red: #e31e24;--tcl-red-dk: #c2161b;--ink: #1d1d1f;--ink-soft: #6e6e73;--glass: rgba(255, 255, 255, .55);--glass-border: rgba(255, 255, 255, .7);--glass-shadow: 0 10px 34px rgba(20, 20, 40, .14);--glass-inset: inset 0 1px 0 rgba(255, 255, 255, .65);--blur: 22px;--radius: 22px}*{box-sizing:border-box}html,body{margin:0}body{font-family:-apple-system,BlinkMacSystemFont,SF Pro Display,system-ui,Segoe UI,Roboto,sans-serif;color:var(--ink);-webkit-font-smoothing:antialiased;min-height:100dvh;background:linear-gradient(180deg,#e9ebf2,#dde0ea)}.app{min-height:100dvh;padding-bottom:24px}.header{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:center;padding:11px 16px;background:#fff9;backdrop-filter:blur(var(--blur)) saturate(180%);-webkit-backdrop-filter:blur(var(--blur)) saturate(180%);border-bottom:1px solid rgba(255,255,255,.5)}.app-name{font-weight:700;font-size:11.5px;color:var(--ink);letter-spacing:1px;text-transform:uppercase}.stage{padding:16px 14px 8px;max-width:540px;margin:0 auto}.controls{display:flex;flex-direction:column;gap:6px;padding:6px;margin:8px auto 14px;max-width:540px;border-radius:var(--radius);background:var(--glass);backdrop-filter:blur(var(--blur)) saturate(180%);-webkit-backdrop-filter:blur(var(--blur)) saturate(180%);border:1px solid var(--glass-border);box-shadow:var(--glass-shadow),var(--glass-inset)}.top-menu{display:flex;gap:6px}.top-menu label{display:flex;flex-direction:column;gap:3px;flex:1;min-width:0;font-size:8.5px;font-weight:600;letter-spacing:.3px;text-transform:uppercase;color:var(--ink-soft)}.top-menu select{-moz-appearance:none;appearance:none;-webkit-appearance:none;width:100%;padding:5px 20px 5px 9px;border:1px solid rgba(255,255,255,.8);border-radius:999px;background:#fff9;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'><path d='M2 4l4 4 4-4' stroke='%236e6e73' stroke-width='1.6' fill='none' stroke-linecap='round'/></svg>");background-repeat:no-repeat;background-position:right 7px center;font-size:11px;font-weight:600;color:var(--ink);cursor:pointer;box-shadow:var(--glass-inset)}.top-menu select:focus{outline:none;border-color:var(--tcl-red)}.tech-menu{display:flex;gap:3px;padding:3px;border-radius:999px;background:#ffffff73;border:1px solid rgba(255,255,255,.6);box-shadow:var(--glass-inset)}.tech-btn{flex:1;border:none;background:transparent;color:var(--ink-soft);font-size:11px;font-weight:700;letter-spacing:.2px;padding:6px 4px;border-radius:999px;cursor:pointer;transition:background .25s ease,color .25s ease,transform .1s ease}.tech-btn:active{transform:scale(.96)}.tech-btn.active{background:linear-gradient(180deg,var(--tcl-red),var(--tcl-red-dk));color:#fff;box-shadow:0 4px 14px #e31e2466}.tv-stack{position:relative;display:flex;flex-direction:column;gap:6px}.tv-frame{position:relative;width:100%;aspect-ratio:1000 / 600;background-size:contain;background-repeat:no-repeat;background-position:center;filter:drop-shadow(0 12px 22px rgba(0,0,0,.28))}.tv-screen{position:absolute;display:block}.zone-badge{align-self:center;margin:0;font-weight:700;font-size:10.5px;white-space:nowrap;color:#fff;background:#363636;padding:6px 12px;border-radius:6px}