:root{--touch-min: 48px;--control-padding-y: .875rem;--control-padding-x: 1.25rem;--control-font-size: 1rem;--content-max-width: 480px;--content-padding: 1rem;--bg: #121212;--bg-elevated: #1e1e1e;--surface: #2a2a2a;--text-primary: #f5f5f5;--text-secondary: #a0a0a0;--accent: #4a9eff;--accent-hover: #6bb0ff;--danger: #ff5252;--border-subtle: rgba(255, 255, 255, .12);--safe-top: env(safe-area-inset-top, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px);--safe-left: env(safe-area-inset-left, 0px);--safe-right: env(safe-area-inset-right, 0px)}html,body{margin:0;padding:0;height:100%;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text-primary);overflow-x:hidden;-webkit-text-size-adjust:100%}#app{height:100%;height:100dvh;display:flex;flex-direction:column}.btn{display:flex;align-items:center;justify-content:center;min-height:var(--touch-min);min-width:var(--touch-min);padding:var(--control-padding-y) var(--control-padding-x);font-size:var(--control-font-size);font-family:inherit;border:1px solid var(--border-subtle);border-radius:.75rem;background:var(--surface);color:var(--text-primary);cursor:pointer;-webkit-tap-highlight-color:transparent;touch-action:manipulation;width:100%;box-sizing:border-box}.btn:active{background:var(--bg-elevated);transform:scale(.98)}.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}.btn-primary:active{background:var(--accent-hover)}.setup{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100%;padding:calc(var(--content-padding) + var(--safe-top)) calc(var(--content-padding) + var(--safe-left)) calc(var(--content-padding) + var(--safe-bottom)) calc(var(--content-padding) + var(--safe-right));box-sizing:border-box}.setup h1{font-size:1.75rem;margin:0 0 1.5rem;text-align:center}.setup form{display:flex;flex-direction:column;gap:1rem;width:100%;max-width:var(--content-max-width)}.lang-section{display:flex;flex-direction:column;gap:.75rem}.lang-card{position:relative;display:flex;flex-direction:column;gap:.375rem;min-height:var(--touch-min);padding:.75rem 1rem;background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:.75rem}.lang-card__label{font-size:.8125rem;color:var(--text-secondary)}.lang-select{width:100%;min-height:var(--touch-min);font-size:1.125rem;font-family:inherit;background:transparent;color:var(--text-primary);border:none;outline:none;-moz-appearance:none;appearance:none;-webkit-appearance:none;padding-right:2rem;cursor:pointer}.lang-card:after{content:"▾";position:absolute;right:1rem;top:50%;transform:translateY(-50%);color:var(--text-secondary);font-size:1rem;pointer-events:none}.join-section{display:flex;flex-direction:column;gap:.625rem}.room-input-label{font-size:.8125rem;color:var(--text-secondary)}.room-input{width:100%;min-height:var(--touch-min);font-size:1.5rem;font-family:monospace;letter-spacing:.3em;text-align:center;text-transform:uppercase;padding:.75rem;background:var(--bg-elevated);color:var(--text-primary);border:1px solid var(--border-subtle);border-radius:.75rem;box-sizing:border-box}.room-input:focus{border-color:var(--accent);outline:2px solid var(--accent);outline-offset:-1px}.divider{display:flex;align-items:center;text-align:center;color:var(--text-secondary);font-size:.8125rem;margin:.25rem 0}.divider:before,.divider:after{content:"";flex:1;border-bottom:1px solid var(--border-subtle)}.divider span{padding:0 .75rem}.setup .error{color:var(--danger);margin-top:.5rem;font-size:.9rem;text-align:center;max-width:var(--content-max-width)}.call{position:relative;width:100%;height:100dvh;overflow:hidden;background:#000}.remote-video{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:cover;background:#000;z-index:1}.local-video{position:absolute;top:calc(.75rem + var(--safe-top));right:calc(.75rem + var(--safe-right));width:120px;height:160px;object-fit:cover;border-radius:.75rem;border:2px solid rgba(255,255,255,.3);background:#1a1a1a;z-index:5}@media (min-width: 768px){.local-video{width:180px;height:240px}}@media (max-width: 360px){.local-video{width:96px;height:128px}}.call-controls{position:absolute;bottom:calc(1rem + var(--safe-bottom));left:50%;transform:translate(-50%);display:flex;gap:.75rem;z-index:10;padding:.5rem;background:#00000073;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-radius:2rem;border:1px solid rgba(255,255,255,.15)}.call-control-btn{width:auto;min-width:72px;min-height:52px;padding:.625rem 1rem;font-size:.875rem;background:#ffffff26;border:1px solid rgba(255,255,255,.2);color:#fff;border-radius:2rem}.call-control-btn:active{background:#ffffff4d}.caption-overlay{position:absolute;bottom:6rem;left:.75rem;right:.75rem;pointer-events:none;text-align:center;color:#fff;text-shadow:0 0 2px rgba(0,0,0,.9),0 1px 3px rgba(0,0,0,.8);font-family:system-ui,sans-serif;font-size:1.0625rem;line-height:1.4;z-index:8}.caption-overlay p{margin:.25rem 0;padding:.5rem .875rem;border-radius:.5rem;background:#0009;display:inline-block;max-width:90%}.caption-draft{font-style:italic;opacity:.85}.caption-final{font-weight:500;opacity:1}.error-screen,.call-ended-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100%;padding:calc(var(--content-padding) + var(--safe-top)) calc(var(--content-padding) + var(--safe-left)) calc(var(--content-padding) + var(--safe-bottom)) calc(var(--content-padding) + var(--safe-right));text-align:center;box-sizing:border-box;gap:1rem}.error-screen h2,.call-ended-screen h2{color:var(--danger);font-size:1.5rem;margin:0}.error-screen p,.call-ended-screen p{color:var(--text-secondary);max-width:var(--content-max-width);margin:0}.error-screen button,.call-ended-screen button{max-width:var(--content-max-width);margin-top:.5rem}.waiting{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100%;padding:calc(var(--content-padding) + var(--safe-top)) calc(var(--content-padding) + var(--safe-left)) calc(var(--content-padding) + var(--safe-bottom)) calc(var(--content-padding) + var(--safe-right));text-align:center;box-sizing:border-box;gap:.625rem}.waiting h2{margin:0 0 .75rem;font-size:1.5rem}.waiting-label{color:var(--text-secondary);font-size:.875rem;margin:.75rem 0 0}.room-code{font-size:clamp(2.5rem,12vw,3.5rem);font-weight:700;letter-spacing:.25em;padding:.75rem 1.5rem;background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:.75rem;font-family:monospace;color:var(--text-primary);word-break:break-all}.share-link{font-size:.875rem;color:var(--accent);word-break:break-all;max-width:100%;width:100%;padding:.625rem .75rem;background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:.5rem;box-sizing:border-box}.copy-code-btn,.copy-link-btn{margin-top:.5rem;max-width:var(--content-max-width)}.waiting-text{margin-top:1.5rem;color:var(--text-secondary);font-style:italic;font-size:.9375rem}