.chat-button{font-family:var(--font-first);cursor:pointer;color:inherit;background:0 0;border:none;border-radius:8px;justify-content:center;align-items:center;gap:12px;padding:0;font-weight:700;text-decoration:none;transition:all .2s ease-in-out;display:inline-flex;position:relative}.chat-button--large{height:40px;padding:8px 12px;font-size:18px}.chat-button--small{gap:8px;height:30px;padding:2px 8px;font-size:16px}.chat-button--icon-only{gap:0}.chat-button--icon-only.chat-button--large{padding:8px}.chat-button--icon-only.chat-button--small{padding:4px}.chat-button--icon-only .chat-button__text{display:none}.chat-button--icon-only{color:var(--color-tangerine-ai,#bc3ebc)}.chat-button--icon-only:active{color:var(--color-tangerine-ai-dark,#741571)}.chat-button--brand.chat-button--contained{color:#fff;background:var(--color-tangerine-ai-gradient,linear-gradient(111deg,#e14de3 12.58%,#8c2a89 100%))}.chat-button--brand.chat-button--contained:hover:not(:disabled){background:var(--color-tangerine-ai-gradient-reverse,linear-gradient(291deg,#e14de3 12.5%,#8c2a89 99.91%))}.chat-button--brand.chat-button--contained:active:not(:disabled){background:var(--color-tangerine-ai-dark,#741571)}.chat-button--brand.chat-button--contained.chat-button--has-shadow.chat-button--large{box-shadow:0 3px rgba(188,62,188,.3)}.chat-button--brand.chat-button--contained.chat-button--has-shadow.chat-button--large:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 5px rgba(188,62,188,.3)}.chat-button--brand.chat-button--contained.chat-button--has-shadow.chat-button--large:active:not(:disabled){transform:translateY(1px);box-shadow:inset 0 3px rgba(188,62,188,.3)}.chat-button--brand.chat-button--contained.chat-button--has-shadow.chat-button--small{box-shadow:0 3px rgba(188,62,188,.3)}.chat-button--brand.chat-button--contained.chat-button--has-shadow.chat-button--small:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 4px rgba(188,62,188,.3)}.chat-button--brand.chat-button--contained.chat-button--has-shadow.chat-button--small:active:not(:disabled){transform:translateY(1px);box-shadow:inset 0 3px rgba(188,62,188,.3)}.chat-button--brand.chat-button--outlined{color:var(--color-tangerine-ai,#bc3ebc);border:1px solid var(--color-tangerine-ai,#bc3ebc);background-color:#fff}.chat-button--brand.chat-button--outlined.chat-button--has-shadow.chat-button--large{box-shadow:0 3px rgba(188,62,188,.2)}.chat-button--brand.chat-button--outlined.chat-button--has-shadow.chat-button--large:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 5px rgba(188,62,188,.2)}.chat-button--brand.chat-button--outlined.chat-button--has-shadow.chat-button--large:active:not(:disabled){transform:translateY(1px);box-shadow:inset 0 3px rgba(188,62,188,.2)}.chat-button--brand.chat-button--outlined.chat-button--has-shadow.chat-button--small{box-shadow:0 3px rgba(188,62,188,.2)}.chat-button--brand.chat-button--outlined.chat-button--has-shadow.chat-button--small:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 4px rgba(188,62,188,.2)}.chat-button--brand.chat-button--outlined.chat-button--has-shadow.chat-button--small:active:not(:disabled){transform:translateY(1px);box-shadow:inset 0 3px rgba(188,62,188,.2)}.chat-button--brand.chat-button--outlined:hover:not(:disabled),.chat-button--brand.chat-button--outlined:active:not(:disabled){color:var(--color-tangerine-ai-dark,#741571);background-color:var(--color-tangerine-ai-alpha,rgba(188,62,188,.15));border-color:var(--color-tangerine-ai-dark,#741571)}.chat-button--brand.chat-button--text{color:var(--color-tangerine-ai,#bc3ebc);font-family:var(--font-first);background-color:transparent;border-radius:8px}.chat-button--brand.chat-button--text:hover:not(:disabled){color:var(--color-tangerine-ai-dark,#741571);background-color:var(--color-tangerine-ai-alpha,rgba(188,62,188,.15))}.chat-button--brand.chat-button--text.chat-button--icon-only:hover:not(:disabled){background-color:var(--color-tangerine-ai-lighter,#d068d0);color:var(--color-tangerine-ai,#bc3ebc)}.chat-button--brand.chat-button--text.chat-button--icon-only:active:not(:disabled){background-color:var(--color-tangerine-ai-lighter,#d068d0);color:var(--color-tangerine-ai-dark,#741571)}.chat-button--brand.chat-button--text:not(.chat-button--icon-only):hover:not(:disabled),.chat-button--brand.chat-button--text:not(.chat-button--icon-only):active:not(:disabled){color:var(--color-tangerine-ai-dark,#741571);background-color:var(--color-tangerine-ai-alpha,rgba(188,62,188,.15))}.chat-button:disabled{opacity:.4;cursor:not-allowed;box-shadow:none;transform:none}.chat-button__text{font-family:var(--font-first);font-weight:700;line-height:26px}.chat-button__icon{color:inherit}.chat-audio-recorder{background:var(--color-tangerine-ai,#bc3ebc);border-radius:24px;width:100%;min-height:40px;position:relative;overflow:hidden}.chat-audio-recorder__content{z-index:1;color:#fff;justify-content:space-between;align-items:center;gap:12px;padding:4px 12px;display:flex;position:relative}.chat-audio-recorder__waves{flex:1;align-items:center;gap:3px;height:30px;margin-right:8px;display:inline-flex}.chat-audio-recorder__waves span{background:rgba(255,255,255,.95);border-radius:2px;width:4px;height:4px}.chat-audio-recorder__actions{flex-shrink:0;align-items:center;gap:8px;display:inline-flex}.chat-audio-recorder__icon-btn{cursor:pointer;background:#f9f9f9;border:1px solid #f2f2f2;border-radius:50%;place-items:center;width:24px;height:24px;padding:0;transition:all .2s ease-in-out;display:grid}.chat-audio-recorder__icon-btn--white{background:#fff;border:1px solid #f2f2f2;box-shadow:0 1px 2px rgba(0,0,0,.08)}.chat-audio-recorder__icon-btn svg{width:16px;height:16px}.chat-audio-recorder__icon-btn:not(:disabled):hover{background:#f2f2f2;border:1px solid #e0e0e0}.chat-audio-recorder__icon-btn:not(:disabled):active{background:#f9f9f9;transform:translateY(0);box-shadow:inset 0 3px rgba(224,224,224,.7)}.chat-audio-recorder__icon-btn:disabled{cursor:not-allowed;background:#f2f2f2;transform:none;box-shadow:0 1px 2px rgba(0,0,0,.05)}.chat-mermaid-modal-container{border-radius:var(--border-radius-01);justify-content:center;align-items:center;width:100%;min-height:300px;padding:20px;display:flex}.chat-mermaid-modal-container .chat-mermaid-modal__diagram{text-align:center}.chat-mermaid-modal-container .chat-mermaid-modal__diagram svg{max-width:100%;height:auto}.chat-badge{border-radius:16px;align-items:center;gap:4px;padding:4px 8px;font-size:14px;display:inline-flex}.chat-badge__emoji{font-size:inherit}.chat-badge__text{font-family:var(--font-second);color:transparent;-webkit-background-clip:text;background-clip:text;font-weight:600;line-height:26px}.chat-badge--practice{background-color:#d6f6ff}.chat-badge--practice .chat-badge__text{color:#0a3366}.chat-badge--study{background-color:#ffe8ff}.chat-badge--study .chat-badge__text{color:#6b0a6b}.chat-badge--revision{background-color:#fff3e0}.chat-badge--revision .chat-badge__text{color:#e65100}.teacher-layout-wrapper{height:100vh;display:flex;overflow:hidden}.teacher-layout-wrapper__sidebar{background:#faf7f5;flex-direction:column;flex-shrink:0;width:265px;height:100vh;transition:width .3s;display:flex;overflow-x:hidden;overflow-y:auto}.teacher-layout-wrapper__sidebar-header{justify-content:space-between;align-items:center;padding:24px 24px 0;display:flex}.teacher-layout-wrapper__collapse-btn{cursor:pointer;background:0 0;border:none;border-radius:4px;justify-content:center;align-items:center;padding:24px;transition:background-color .2s;display:flex}.teacher-layout-wrapper__collapse-btn:hover{background-color:rgba(0,0,0,.05)}.teacher-layout-wrapper__collapse-btn .icon{color:#767676}.teacher-layout-wrapper__title-container{visibility:visible;transition:opacity .3s;overflow:hidden}.teacher-layout-wrapper__title{color:#4e4e4e;white-space:nowrap;font-size:24px;font-weight:600;font-family:var(--font-first);margin:0;padding:24px 24px 0}.teacher-layout-wrapper__navigation{flex:1;padding:24px 0 0 24px;transition:padding .3s}.teacher-layout-wrapper__nav-list{font-family:var(--font-first);flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.teacher-layout-wrapper__nav-item{cursor:pointer;text-align:left;background:0 0;border:none;border-radius:8px 0 0 8px;align-items:center;width:100%;padding:8px 15px;transition:background-color .2s,color .2s;display:flex;overflow:hidden}.teacher-layout-wrapper__nav-item .icon{color:#767676;flex-shrink:0;transition:color .2s}.teacher-layout-wrapper__nav-item:hover{background:rgba(255,255,255,.5)}.teacher-layout-wrapper__nav-item:hover .icon,.teacher-layout-wrapper__nav-item:hover .teacher-layout-wrapper__nav-text{color:var(--color-tangerine-ai-dark,#741571)}.teacher-layout-wrapper__nav-item--active{background:#fff}.teacher-layout-wrapper__nav-item--active .icon{color:var(--color-tangerine-ai,#bc3ebc)}.teacher-layout-wrapper__nav-item--active .teacher-layout-wrapper__nav-text{color:var(--color-tangerine-ai,#bc3ebc);font-family:var(--font-first)}.teacher-layout-wrapper__nav-item--active:hover{background:#fff}.teacher-layout-wrapper__nav-text{color:#767676;white-space:nowrap;opacity:1;width:auto;margin-left:12px;font-family:Dosis Bold,sans-serif;font-size:16px;font-weight:600;line-height:24px;transition:opacity .2s,width .3s}.teacher-layout-wrapper__dev-toggle{margin-top:auto;padding:16px 20px}.teacher-layout-wrapper__dev-toggle-hint{color:#767676;margin-top:4px;font-size:11px;line-height:1.3}.teacher-layout-wrapper__main{background:#fff;flex:1;min-width:0;padding-top:36px;overflow:auto}.teacher-layout-wrapper__main--default-padding{padding-left:72px;padding-right:72px}.teacher-layout-wrapper__main--left-only-padding{padding-left:72px;padding-right:0}.teacher-layout-wrapper__main--none-padding{padding-left:0;padding-right:0}.teacher-layout-wrapper--collapsed .teacher-layout-wrapper__sidebar{width:80px}.teacher-layout-wrapper--collapsed .teacher-layout-wrapper__sidebar-header{justify-content:center;padding-left:0;padding-right:0}.teacher-layout-wrapper--collapsed .teacher-layout-wrapper__sidebar-header .back-arrow{display:none}.teacher-layout-wrapper--collapsed .teacher-layout-wrapper__title-container{opacity:0;visibility:hidden;transition:opacity .3s,visibility 0s linear .3s}.teacher-layout-wrapper--collapsed .teacher-layout-wrapper__navigation{align-items:center;padding:24px 0 0 24px}.teacher-layout-wrapper--collapsed .teacher-layout-wrapper__nav-item{justify-content:center;padding:8px}.teacher-layout-wrapper--collapsed .teacher-layout-wrapper__nav-text{opacity:0;width:0;margin-left:0;transition:opacity .2s ease-out,width .3s,margin-left .3s}.teacher-layout-wrapper--show-back-collapsed .teacher-layout-wrapper__sidebar-header .back-arrow{display:flex}.teacher-layout-wrapper__mobile-menu-button,.teacher-layout-wrapper__mobile-menu-backdrop{display:none}.student-xray-drawer__header{border-bottom:1px solid #f2f2f2;justify-content:space-between;align-items:center;padding:8px;display:flex}.student-xray-drawer__student-info{align-items:center;gap:8px;display:flex}.student-xray-drawer__student-text{flex-direction:column;display:flex}.student-xray-drawer__student-name{font-family:var(--font-first-semi);color:#333;font-size:16px;font-weight:600;line-height:26px}.student-xray-drawer__student-class{font-family:var(--font-second);color:#767676;font-size:14px;font-weight:500;line-height:20px}.student-xray-drawer__close-btn{cursor:pointer;color:#767676;background:0 0;border:none;justify-content:center;align-items:center;width:24px;height:24px;padding:0;display:flex}.student-xray-drawer__close-btn:hover{color:#333}.student-xray-drawer__body{flex-direction:column;gap:24px;padding:8px 16px;display:flex;overflow-y:auto}.student-xray-drawer__stats{gap:8px;display:flex}.student-xray-drawer__stat-card{border:1px solid #e0e0e0;border-radius:8px;flex:1;padding:8px 16px}.student-xray-drawer__stat-label{font-family:var(--font-second);color:#4e4e4e;font-size:14px;font-weight:500;line-height:20px}.student-xray-drawer__stat-value-row{align-items:baseline;gap:4px;display:flex}.student-xray-drawer__stat-value{font-family:var(--font-second);color:#333;font-size:18px;font-weight:700;line-height:26px}.student-xray-drawer__stat-unit{font-family:var(--font-second);color:#767676;font-size:14px;font-weight:500;line-height:20px}.student-xray-drawer__quality-header{justify-content:space-between;align-items:center;margin-bottom:8px;display:flex}.student-xray-drawer__quality-label{font-family:var(--font-second);color:#333;font-size:16px;font-weight:500;line-height:24px}.student-xray-drawer__quality-percentage{font-family:var(--font-second);color:#6b0a6b;font-size:14px;font-weight:700;line-height:17px}.student-xray-drawer__quality-bar{background-color:#f2f2f2;border-radius:4px;height:8px;margin-bottom:8px;overflow:hidden}.student-xray-drawer__quality-bar-fill{background-color:#e047e0;border-radius:4px;height:100%}.student-xray-drawer__quality-description{font-family:var(--font-second);color:#4e4e4e;font-size:14px;font-weight:500;line-height:20px}.student-xray-drawer__intent-section-title{font-family:var(--font-second);color:#333;margin-bottom:8px;font-size:16px;font-weight:500;line-height:24px}.student-xray-drawer__intent-list{flex-direction:column;gap:16px;display:flex}.student-xray-drawer__intent-row{flex-direction:column;gap:8px;display:flex}.student-xray-drawer__intent-header{justify-content:space-between;align-items:center;display:flex}.student-xray-drawer__intent-label{font-family:var(--font-second);color:#4e4e4e;font-size:14px;font-weight:500;line-height:20px}.student-xray-drawer__intent-percentage{font-family:var(--font-second);font-size:14px;font-weight:700;line-height:17px}.student-xray-drawer__intent-bar{background-color:#f2f2f2;border-radius:4px;height:8px;overflow:hidden}.student-xray-drawer__intent-bar-fill{border-radius:4px;height:100%}.student-xray-drawer__intent-row--color-1 .student-xray-drawer__intent-percentage{color:#6b0a6b}.student-xray-drawer__intent-row--color-1 .student-xray-drawer__intent-bar-fill{background-color:#e047e0}.student-xray-drawer__intent-row--color-2 .student-xray-drawer__intent-percentage{color:#70022e}.student-xray-drawer__intent-row--color-2 .student-xray-drawer__intent-bar-fill{background-color:#e3366f}.student-xray-drawer__intent-row--color-3 .student-xray-drawer__intent-percentage{color:#662014}.student-xray-drawer__intent-row--color-3 .student-xray-drawer__intent-bar-fill{background-color:#ff7450}.student-xray-drawer__intent-row--color-4 .student-xray-drawer__intent-percentage{color:#664306}.student-xray-drawer__intent-row--color-4 .student-xray-drawer__intent-bar-fill{background-color:#ffb233}.student-xray-drawer__intent-row--color-5 .student-xray-drawer__intent-percentage{color:#305001}.student-xray-drawer__intent-row--color-5 .student-xray-drawer__intent-bar-fill{background-color:#91d432}.student-xray-drawer__intent-row--color-6 .student-xray-drawer__intent-percentage{color:#05490b}.student-xray-drawer__intent-row--color-6 .student-xray-drawer__intent-bar-fill{background-color:#36c03c}.student-xray-drawer__intent-row--color-7 .student-xray-drawer__intent-percentage{color:#014d5c}.student-xray-drawer__intent-row--color-7 .student-xray-drawer__intent-bar-fill{background-color:#3ce4f1}.student-xray-drawer__intent-row--color-8 .student-xray-drawer__intent-percentage{color:#0a3366}.student-xray-drawer__intent-row--color-8 .student-xray-drawer__intent-bar-fill{background-color:#4eabff}.empty-state{text-align:center;flex-direction:column;justify-content:center;align-items:center;padding:8px 24px;display:flex}.empty-state__icon{border-radius:16px;justify-content:center;align-items:center;width:36px;height:28px;margin-bottom:16px;display:flex}.empty-state__icon--success{background-color:#d7fedb}.empty-state__icon--success .icon--color-default{color:#0a6910}.empty-state__icon--warning{background-color:#fffaea}.empty-state__icon--warning .icon--color-default{color:#d18436}.empty-state__icon--muted{background-color:#f2f2f2}.empty-state__icon--muted .icon--color-default{color:#4e4e4e}.empty-state__icon--info{background-color:#d6f6ff}.empty-state__icon--info .icon--color-default{color:#0f4f99}.empty-state__icon--error{background-color:#ffebe2}.empty-state__icon--error .icon--color-default{color:#992e19}.empty-state__title{font-family:var(--font-first);color:#333;margin:0 0 8px;font-size:16px;font-weight:600;line-height:24px}.empty-state__description{font-family:var(--font-second);color:#333;margin:0;font-size:16px}.radar-type-tag{font-family:var(--font-second);white-space:nowrap;color:#333;background-color:#f2f2f2;border-radius:16px;flex-shrink:0;justify-content:center;align-items:center;gap:4px;height:28px;padding:4px 8px;font-size:14px;font-weight:500;line-height:normal;display:flex}.radar-type-tag--inappropriate-use{color:#97033a;background-color:#ffeaed}.radar-type-tag--learning-block,.radar-type-tag--group-learning-alert{color:#996008;background-color:#fffad6}.severity-badge{flex-direction:column;flex-shrink:0;align-items:flex-start;gap:2px;display:flex}.severity-badge__label{font-family:var(--font-second);color:#767676;font-size:14px;font-weight:500;line-height:18px}.severity-badge__row{align-items:center;gap:4px;display:flex}.severity-badge__level{font-family:var(--font-second);color:#333;font-size:14px;font-weight:500;line-height:16px}.severity-badge--horizontal{flex-direction:row;align-items:center;gap:4px}