:root{--background: #F2F8F7;--surface: #FFFFFF;--surface-elevated: #F7FBFA;--border: #E3EEEC;--accent: #14B8A6;--accent-bright: #2DD4BF;--accent-deep: #0F766E;--accent-on: #FFFFFF;--text-primary: #0F2E28;--text-secondary: #5C7C74;--text-muted: #9AB0AB;--danger: #DC2626;--danger-bg: #FEE2E2;--success: #16A34A}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--background);color:var(--text-primary)}button{font-family:inherit;cursor:pointer}.hero{background:linear-gradient(135deg,var(--accent-bright) 0%,var(--accent-deep) 100%);padding:40px 20px 32px;display:flex;flex-direction:column;align-items:center;border-radius:0 0 32px 32px;color:#fff;text-align:center}.hero-logo{width:72px;height:72px;margin-bottom:8px}.hero-title{font-size:26px;font-weight:600;letter-spacing:-.3px;margin:0}.hero-tagline{font-size:14px;opacity:.85;margin:2px 0 0}.container{max-width:420px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column}.content{flex:1;padding:24px 20px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}.card{background:var(--surface);border-radius:20px;padding:28px 24px;width:100%;box-shadow:0 8px 24px #0f766e1a}.title{font-size:19px;font-weight:600;margin:0 0 8px}.subtitle{font-size:14px;color:var(--text-secondary);margin:0 0 20px;line-height:1.5}.primary-button{width:100%;border:none;border-radius:10px;padding:14px;font-size:15px;font-weight:600;color:var(--accent-on);background:linear-gradient(135deg,var(--accent-bright) 0%,var(--accent-deep) 100%)}.primary-button:disabled{opacity:.6}.secondary-button{width:100%;border:1px solid var(--border);border-radius:10px;padding:14px;font-size:15px;font-weight:500;color:var(--text-primary);background:var(--surface);margin-top:8px}.avatar-circle{width:88px;height:88px;border-radius:50%;background:var(--surface-elevated);display:flex;align-items:center;justify-content:center;font-size:32px;font-weight:600;color:var(--accent-deep);margin:0 auto 16px}.pulse-ring{position:relative}.pulse-ring:before{content:"";position:absolute;top:-8px;right:-8px;bottom:-8px;left:-8px;border-radius:50%;border:2px solid var(--accent);animation:pulse 1.6s ease-out infinite}@keyframes pulse{0%{transform:scale(.9);opacity:.8}to{transform:scale(1.4);opacity:0}}.countdown{font-size:13px;color:var(--text-muted);margin-top:12px}.error-icon{font-size:40px;margin-bottom:12px}.call-screen{position:fixed;top:0;right:0;bottom:0;left:0;background:#0b0f0e;display:flex;flex-direction:column}.remote-video{flex:1;width:100%;object-fit:cover;background:#0b0f0e}.local-video-pip{position:absolute;top:16px;right:16px;width:96px;height:128px;border-radius:12px;overflow:hidden;border:2px solid rgba(255,255,255,.3);object-fit:cover;background:#1a1a1a}.call-controls{position:absolute;bottom:24px;left:0;right:0;z-index:10;display:flex;justify-content:center;gap:16px}.call-control-button{width:56px;height:56px;border-radius:50%;border:none;display:flex;align-items:center;justify-content:center;font-size:22px;background:#ffffff26;color:#fff}.call-control-button.hangup{background:var(--danger);width:64px;height:64px}.call-status-bar{position:absolute;top:16px;left:16px;background:#0006;color:#fff;padding:6px 12px;border-radius:20px;font-size:13px}