:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--ink:#182033;--muted:#667085;--paper:#f7f3ec;--panel:#fff;--line:#d9d4ca;--navy:#223a5e;--red:#b33a3a;--gold:#c9942f;--green:#217a5b}*{box-sizing:border-box}html,body{min-height:100%;margin:0}body{background:linear-gradient(90deg, #223a5e14 1px, transparent 1px), linear-gradient(0deg, #223a5e14 1px, transparent 1px), var(--paper);color:var(--ink);background-size:28px 28px;font-family:Arial,Helvetica,sans-serif}button{font:inherit}.app-shell{align-items:stretch;min-height:100vh;padding:28px;display:flex}.tutor-panel{flex-direction:column;gap:22px;width:min(1180px,100%);margin:0 auto;display:flex}.title-row{border-bottom:1px solid var(--line);justify-content:space-between;align-items:end;gap:20px;padding-bottom:18px;display:flex}.eyebrow{color:var(--red);letter-spacing:0;text-transform:uppercase;margin:0 0 8px;font-size:.78rem;font-weight:700}h1{letter-spacing:0;margin:0;font-size:clamp(2.2rem,6vw,5.2rem);line-height:.95}.status{border:1px solid var(--line);background:var(--panel);min-width:112px;color:var(--muted);text-align:center;text-transform:capitalize;padding:8px 12px;font-size:.9rem}.status-listening,.status-speaking{color:var(--green);border-color:#217a5b59}.status-error{color:var(--red);border-color:#b33a3a66}.session-grid{grid-template-columns:minmax(0,1fr) 310px;gap:22px;min-height:680px;display:grid}.conversation{border:1px solid var(--line);background:#ffffffb8;flex-direction:column;gap:14px;padding:18px;display:flex;overflow:auto}.line{border:1px solid var(--line);background:var(--panel);gap:6px;max-width:78%;padding:14px 16px;display:grid}.line span{color:var(--muted);text-transform:uppercase;font-size:.74rem;font-weight:700}.line p{margin:0;font-size:1rem;line-height:1.45}.line-agent{border-left:5px solid var(--navy)}.line-user{border-right:5px solid var(--gold);align-self:end}.line-system{border-left:5px solid var(--red);max-width:100%;color:var(--muted)}.line-partial{opacity:.72}.control-rail{border:1px solid var(--line);background:var(--panel);flex-direction:column;gap:18px;padding:18px;display:flex}.meter{border:1px solid var(--line);background:radial-gradient(circle,#c9942f38,#0000 42%),#fbfaf7;place-items:center;min-height:180px;display:grid}.pulse{border:3px solid var(--line);background:#fff;border-radius:50%;width:82px;height:82px}.pulse.active{border-color:var(--green);animation:1.6s ease-in-out infinite pulse}@keyframes pulse{0%{transform:scale(.94);box-shadow:0 0 #217a5b47}to{transform:scale(1);box-shadow:0 0 0 24px #217a5b00}}.button-row{grid-template-columns:1fr 44px;gap:10px;display:grid}.primary-button,.danger-button,.icon-button{cursor:pointer;border:1px solid #0000;justify-content:center;align-items:center;gap:8px;height:44px;display:inline-flex}.primary-button{background:var(--navy);color:#fff}.danger-button{background:var(--red);color:#fff}.icon-button{border-color:var(--line);color:var(--ink);background:#fff}.primary-button:disabled,.danger-button:disabled,.icon-button:disabled{cursor:not-allowed;opacity:.55}.facts{border-top:1px solid var(--line);gap:6px;padding-top:14px;display:grid}.facts p{color:var(--muted);overflow-wrap:anywhere;margin:0;font-size:.92rem;line-height:1.4}.facts p:not(.fact-label){align-items:center;gap:6px;display:flex}.fact-label{text-transform:uppercase;font-weight:700;color:var(--ink)!important;font-size:.76rem!important}@media (max-width:820px){.app-shell{padding:16px}.title-row{flex-direction:column;align-items:start}.session-grid{grid-template-columns:1fr;min-height:auto}.conversation{min-height:58vh}.line{max-width:100%}}