:root{color-scheme:light}*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:#f5f6fa;color:#111827}main{min-height:100vh;padding:24px}.panel{max-width:860px;margin:0 auto;background:#ffffff;border:1px solid #d1d5db;border-radius:10px;padding:20px}h1{margin-bottom:8px;font-size:1.5rem}h1,p{margin-top:0}p{color:#4b5563}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));grid-gap:12px;gap:12px;margin-bottom:16px}label{display:flex;flex-direction:column;gap:6px;font-weight:600;font-size:.9rem;color:#1f2937}input{padding:8px 10px;border:1px solid #cbd5e1;border-radius:6px;font-size:.95rem}input:focus{outline:2px solid #93c5fd;outline-offset:1px}.button-row{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0 16px}button{border-radius:6px;padding:8px 12px;cursor:pointer;font-weight:600}.button-primary{border:1px solid #1d4ed8;background:#2563eb;color:#ffffff}.button-secondary{border:1px solid #94a3b8;background:#ffffff;color:#0f172a}button:disabled{cursor:not-allowed;opacity:.55}.advanced-settings{margin-top:12px;border:1px solid #dbe0e6;border-radius:8px;padding:12px;background:#f8fafc}.toggle{flex-direction:row;align-items:center;gap:8px}.status-box{border:1px solid #d1d5db;background:#f9fafb;border-radius:8px;padding:12px;margin-bottom:12px}.status-box ul{margin:0;padding-left:18px}.status-error{color:#b91c1c;font-weight:600}.note{margin-top:12px;font-size:.85rem;color:#374151}.softphone-shell{max-width:420px;margin:0 auto;background:#ffffff;border:1px solid #d1d5db;border-radius:20px;padding:16px;box-shadow:0 10px 30px rgba(15,23,42,.12)}.softphone-topbar{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:14px}.softphone-agent{font-weight:700;font-size:1.1rem;color:#0f172a}.softphone-subtitle{font-size:.8rem;color:#64748b}.softphone-topbar-right{display:flex;align-items:center;gap:8px}.softphone-status-chip{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:5px 10px;background:#f8fafc;border:1px solid #e2e8f0;font-size:.8rem;text-transform:capitalize}.status-dot{width:10px;height:10px;border-radius:999px;display:inline-block}.status-green{background:#16a34a}.status-yellow{background:#f59e0b}.status-red{background:#dc2626}.settings-toggle{width:36px;height:36px;border-radius:10px;border:1px solid #cbd5e1;background:#ffffff;font-size:1rem}.number-display-wrap,.phone-actions{margin-bottom:12px}.phone-actions{display:flex;gap:8px}.number-display{width:100%;padding:14px;font-size:1.35rem;text-align:center;border-radius:12px;border:1px solid #cbd5e1}.dialpad{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:10px;gap:10px;margin-bottom:14px}.dialpad-key{border:1px solid #d1d5db;border-radius:14px;background:#f8fafc;color:#0f172a;font-size:1.25rem;font-weight:700;padding:16px 0}.call-actions{display:flex;justify-content:center;align-items:center;gap:10px;margin-bottom:12px}.action-btn{min-width:96px;border:none;border-radius:999px;padding:12px 16px;color:#ffffff;font-size:.95rem;font-weight:700}.action-call{background:#16a34a}.action-answer{background:#0284c7}.action-hangup{background:#dc2626}.softphone-status{border-radius:10px;border:1px solid #e2e8f0;padding:10px 12px;background:#f8fafc;font-weight:600;font-size:.92rem;color:#1e293b;margin-bottom:12px}.softphone-status-error{border-color:#fecaca;background:#fef2f2;color:#b91c1c}.settings-panel{border:1px solid #dbe0e6;border-radius:12px;padding:12px;margin-top:12px;background:#f8fafc}.settings-grid{display:grid;grid-template-columns:1fr;grid-gap:10px;gap:10px}.settings-toggle-row{flex-direction:row;align-items:center;gap:8px}.settings-actions{display:flex;gap:8px;margin-top:12px}.softphone-audio{width:100%;margin-top:12px}