:root{--bg: #06131d;--bg-deep: #030911;--panel: rgba(10, 26, 38, .72);--panel-strong: rgba(11, 34, 50, .9);--line: rgba(151, 243, 255, .16);--line-strong: rgba(151, 243, 255, .38);--text: #effdff;--muted: #8eb2bb;--cyan: #8cf2ff;--teal: #3cd8c8;--amber: #ffcf6e;--glow: 0 0 40px rgba(83, 238, 255, .22)}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100%;background:radial-gradient(circle at 18% 18%,rgba(62,183,255,.18),transparent 28%),radial-gradient(circle at 85% 22%,rgba(255,188,88,.14),transparent 22%),linear-gradient(180deg,#07111b,#02060d);color:var(--text)}body{font-family:Noto Sans SC,sans-serif}body:before{content:"";position:fixed;inset:0;background-image:linear-gradient(rgba(140,242,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(140,242,255,.04) 1px,transparent 1px);background-size:56px 56px;pointer-events:none;-webkit-mask-image:radial-gradient(circle at center,black 35%,transparent 95%);mask-image:radial-gradient(circle at center,black 35%,transparent 95%)}.app-shell{position:relative;min-height:100vh;padding:32px;overflow:hidden}.hero-aura{position:absolute;inset:-20% auto auto -10%;width:560px;height:560px;border-radius:50%;background:radial-gradient(circle,rgba(56,225,255,.24),transparent 62%);filter:blur(16px)}.topbar{position:relative;z-index:1;display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:26px}.eyebrow,.label,.topbar-chip,.display-header,.control-header{font-family:Orbitron,sans-serif;letter-spacing:.18em;text-transform:uppercase}.eyebrow{margin:0 0 10px;color:var(--cyan);font-size:12px}.topbar h1{margin:0;font-family:Orbitron,sans-serif;font-size:clamp(2rem,4vw,3.4rem);line-height:.95;text-shadow:0 0 22px rgba(120,230,255,.18)}.topbar-chip{padding:12px 16px;border:1px solid var(--line-strong);border-radius:999px;color:var(--amber);font-size:11px;background:#ffd06e14}.layout-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.5fr 1fr;gap:22px}.panel-frame{position:relative;border:1px solid var(--line);background:linear-gradient(180deg,#091823db,#040d16f5);box-shadow:var(--glow);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);overflow:hidden}.panel-frame:before{content:"";position:absolute;inset:10px;border:1px solid rgba(151,243,255,.08);pointer-events:none}.display-panel,.control-panel{min-height:760px;padding:26px;border-radius:32px}.display-overlay{position:absolute;inset:0;background:radial-gradient(circle at top right,rgba(140,242,255,.08),transparent 34%);pointer-events:none}.display-header,.control-header{display:inline-flex;align-items:center;gap:10px;padding:10px 14px;border-radius:999px;color:var(--cyan);background:#0b2330b8;border:1px solid rgba(140,242,255,.18);font-size:11px}.status-dot{width:9px;height:9px;border-radius:50%;background:var(--teal);box-shadow:0 0 18px #3cd8c8bf}.status-dot.amber{background:var(--amber);box-shadow:0 0 18px #ffcf6ebf}.student-card,.question-card,.glass-card{background:#07141db8;border:1px solid rgba(151,243,255,.1);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.student-card{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-top:22px;padding:22px;border-radius:24px}.student-card h2,.question-card h3,.summary-card h4,.block-card h3{margin:8px 0 0}.student-card h2,.summary-card h4,.block-card h3{font-size:1.55rem}.question-card{margin-top:18px;padding:28px;border-radius:28px}.question-card h3{font-size:clamp(1.8rem,3vw,2.6rem);line-height:1.18;max-width:92%}.feedback-card{margin-top:18px;padding:22px 28px;border-radius:24px;background:#3cd8c814;border:1px solid rgba(60,216,200,.22);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.feedback-text{margin:8px 0 0;font-size:1.15rem;line-height:1.6;color:var(--cyan)}.badge-pill{padding:12px 18px;border-radius:999px;font-family:Orbitron,sans-serif;font-size:12px;color:var(--bg);background:linear-gradient(135deg,var(--cyan),#d8fbff)}.display-bottom-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:18px}.glass-card{border-radius:24px;padding:20px}.radar-wrap{width:100%;height:280px}.signal-list{margin:14px 0 0;padding-left:18px;color:var(--text);display:grid;gap:10px}.cert-card{margin-top:18px;padding:16px 18px;border-radius:20px;background:linear-gradient(135deg,#ffcf6e1f,#ffffff08);border:1px solid rgba(255,207,110,.22)}.cert-card strong{display:block;margin-top:6px;font-size:1.3rem;color:#ffe5ab}.label{margin:0;color:var(--muted);font-size:11px}.muted{color:var(--muted)}.control-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:22px}.block-card{min-height:168px}.block-card.tall{min-height:260px}.rating-row,.action-grid{display:grid;gap:10px}.rating-row{grid-template-columns:repeat(3,1fr);margin-top:18px}.rating,.action-btn{border:1px solid rgba(151,243,255,.16);background:#0a1d29d6;color:var(--text);border-radius:16px;padding:14px 16px;cursor:pointer;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}.rating:hover,.action-btn:hover{transform:translateY(-2px);border-color:#97f3ff75;box-shadow:0 14px 28px #00000047}.rating.active{background:linear-gradient(135deg,#8cf2ff33,#3cd8c82e);border-color:#8cf2ff8f}.summary-input{width:100%;min-height:170px;resize:none;margin-top:16px;border-radius:18px;border:1px solid rgba(151,243,255,.14);background:#040c14e0;color:var(--text);padding:16px;font:inherit;line-height:1.6}.action-grid{grid-template-columns:repeat(2,1fr);margin-top:18px}.setup-card{max-width:680px;margin:60px auto;padding:42px;border-radius:32px;background:linear-gradient(180deg,#091823db,#040d16f5);border:1px solid var(--line);box-shadow:var(--glow)}.setup-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:24px}.input-group{display:flex;flex-direction:column;gap:10px}.input-group.full{grid-column:1 / -1}.input-group label{font-family:Orbitron,sans-serif;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}.input-group input,.input-group select{padding:14px 18px;border-radius:16px;border:1px solid rgba(151,243,255,.16);background:#040c14e0;color:var(--text);font:inherit;font-size:16px}.input-group input:focus,.input-group select:focus{outline:none;border-color:#97f3ff75;box-shadow:0 0 0 3px #8cf2ff1f}.start-btn{width:100%;margin-top:32px;padding:18px;border-radius:20px;border:none;background:linear-gradient(135deg,var(--cyan),#d8fbff);color:var(--bg);font-family:Orbitron,sans-serif;font-size:14px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease}.start-btn:hover{transform:translateY(-3px);box-shadow:0 18px 36px #8cf2ff52}.error-banner{margin-top:16px;padding:14px 18px;border-radius:16px;background:#ff646426;border:1px solid rgba(255,100,100,.3);color:#f88;font-size:14px}.score-grid{display:grid;gap:12px;margin-top:14px}.score-item{display:flex;align-items:center;gap:12px}.score-label{width:50px;font-size:12px;color:var(--muted);text-transform:uppercase}.score-bar{flex:1;height:8px;background:#97f3ff1a;border-radius:4px;overflow:hidden}.score-fill{height:100%;background:linear-gradient(90deg,var(--cyan),var(--teal));border-radius:4px;transition:width .5s ease}.score-value{width:32px;font-family:Orbitron,sans-serif;font-size:14px;color:var(--cyan)}.feedback-display{background:#3cd8c814;border-color:#3cd8c833}.feedback-preview{margin-top:8px;color:var(--cyan);line-height:1.5}.cert-display{background:linear-gradient(135deg,#ffcf6e1f,#ffffff08);border-color:#ffcf6e40}.cert-display h4{margin-top:8px;color:#ffe5ab}.action-btn.welcome{background:#8cf2ff1a}.action-btn.next{background:#3cd8c81a}.action-btn.skip{background:#ffcf6e1a}.action-btn.summary{background:#8cf2ff26}.action-btn.reset{background:#ff64641a}.status-dot.green{background:#4ade80;box-shadow:0 0 18px #4ade80bf}.student-shell{display:flex;align-items:center;justify-content:center}.student-loading{max-width:680px;padding:42px;border-radius:32px;text-align:center}.student-loading h2{margin:16px 0 8px;font-size:2rem}.chat-container{display:grid;gap:14px;margin-top:18px;max-height:420px;overflow-y:auto;padding-right:6px}.student-card-side{display:flex;flex-direction:column;align-items:flex-end;gap:12px}.media-status-pill{padding:10px 14px;border-radius:999px;font-family:Orbitron,sans-serif;font-size:11px;letter-spacing:.12em;text-transform:uppercase;border:1px solid rgba(151,243,255,.18);color:var(--muted);background:#081824b3}.media-status-pill.ready{color:#9ff7dc;border-color:#3cd8c852;background:#3cd8c824}.media-status-pill.requesting{color:var(--cyan);border-color:#8cf2ff52;background:#8cf2ff1a}.media-status-pill.denied,.media-status-pill.error{color:#ffb0b0;border-color:#ff646452;background:#ff64641f}.student-live-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:18px;margin-top:18px}.media-card{display:flex;flex-direction:column;gap:16px;border-radius:24px;padding:20px}.media-card-header{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.media-card-header h4{margin:8px 0 0;font-size:1.3rem}.media-indicators{display:flex;gap:8px}.media-indicator{padding:8px 10px;border-radius:999px;font-family:Orbitron,sans-serif;font-size:10px;letter-spacing:.12em;color:var(--muted);border:1px solid rgba(151,243,255,.14);background:#040c14b3}.media-indicator.active{color:var(--bg);border-color:transparent;background:linear-gradient(135deg,var(--cyan),#d8fbff)}.media-preview-shell{position:relative;min-height:300px;border-radius:24px;overflow:hidden;background:#040c14e0;border:1px solid rgba(151,243,255,.14)}.media-preview{display:block;width:100%;height:100%;min-height:300px;object-fit:cover;transform:scaleX(-1)}.media-placeholder{min-height:300px;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:24px;text-align:center;color:var(--muted);line-height:1.7}.media-placeholder strong{color:var(--text);font-size:1.1rem;margin-bottom:8px}.media-actions{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.media-actions-secondary{grid-template-columns:repeat(2,1fr)}.media-link-btn{display:inline-flex;align-items:center;justify-content:center;text-decoration:none}.media-error{margin-top:0}.media-chat-container{margin-top:0;max-height:520px}.transcript-card{margin-top:14px;border-radius:20px;padding:16px 18px}.chat-message{max-width:82%;padding:18px 20px;border-radius:24px;border:1px solid rgba(151,243,255,.12);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.chat-message-ai{justify-self:start;background:#081824e0;box-shadow:0 0 0 1px #8cf2ff14 inset}.chat-message-feedback{justify-self:end;background:#3cd8c81f;border-color:#3cd8c83d}.chat-message-system{justify-self:center;max-width:68%;background:#ffcf6e1a;border-color:#ffcf6e33}.chat-label{display:inline-block;margin-bottom:8px;font-family:Orbitron,sans-serif;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}.chat-content{margin:0;font-size:1.08rem;line-height:1.7;color:var(--text)}.teacher-shell .display-panel{display:none}.teacher-layout{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1.2fr;gap:22px}.teacher-sidecard{min-height:760px;padding:26px;border-radius:32px}.teacher-sidecard-inner{display:flex;flex-direction:column;gap:18px}.teacher-sidecard h3{margin:8px 0 0;font-size:1.55rem}.teacher-link-box{margin:8px 0;padding:16px;border-radius:16px;background:#040c14e0;border:1px solid rgba(151,243,255,.16);color:var(--cyan);font-family:Courier New,monospace;font-size:13px;word-break:break-all;line-height:1.6}.rating.excellent.active{background:#4ade8033;border-color:#4ade8080}.rating.good.active{background:#8cf2ff33;border-color:#8cf2ff80}.rating.average.active{background:#ffcf6e33;border-color:#ffcf6e80}.start-btn:active{transform:translateY(-1px)}@media(max-width:1180px){.layout-grid,.setup-grid,.student-live-grid{grid-template-columns:1fr}}@media(max-width:760px){.student-card{flex-direction:column;align-items:flex-start}.student-card-side{width:100%;align-items:flex-start}.media-actions,.media-actions-secondary{grid-template-columns:1fr}}