/* Shared spacing: preserve readable gutters, contained forms, and local table scrolling. */
.chat-message{position:relative}.chat-message:has(.chat-message-menu){padding-right:44px}.chat-message-menu{position:absolute;right:7px;top:6px;z-index:2}.chat-message-menu summary{display:block;list-style:none;cursor:pointer;width:28px;text-align:center;border:1px solid #bed2df;border-radius:8px;background:#fff;font-size:20px;line-height:24px}.chat-message-menu[open]{background:#fff;padding:5px;border:1px solid #bed2df;border-radius:10px;box-shadow:0 6px 20px #102e4820;min-width:140px}.chat-message-menu[open] summary{margin-left:auto}.chat-message-menu button{display:block;width:100%;text-align:left;background:white;border:0;padding:9px;color:#163b51;font:inherit;font-size:.875rem;cursor:pointer}.chat-message-menu button:hover{background:#ecf4f7}.chat-pinned{flex:none;max-height:150px;overflow:auto;margin:10px 16px 0;border-left:3px solid #078c98;background:#eaf6f6;padding:10px 13px;border-radius:8px;font-size:.875rem}.chat-pinned p{white-space:pre-wrap;margin-top:5px;overflow-wrap:anywhere}.chat-pinned button{border:0;background:transparent;color:#087c87;padding:5px 0;cursor:pointer}.chat-editing{display:flex;justify-content:space-between;align-items:center;padding:4px 18px;background:#fff4d9;font-size:.875rem}
.read-segment[data-sentence]{cursor:pointer;border-radius:3px}.read-segment[data-sentence]:hover,.read-segment.translation-selected{background:#e5f2ff;box-shadow:0 1px #668cb3}.read-segment[data-sentence]:focus-visible{outline:2px solid #137c8a;outline-offset:2px}.sentence-help{margin-top:20px;border-top:1px solid #d5e2ed;padding-top:12px}.sentence-help .hint{font-family:inherit;font-size:.875rem}.sentence-translation{position:fixed;z-index:90;box-sizing:border-box;width:min(430px,calc(100vw - 20px));max-height:45vh;overflow:auto;padding:16px 40px 16px 18px;background:#fff;border:1px solid #8cbdca;border-radius:12px;box-shadow:0 10px 35px #12324b30;font:16px/1.6 Arial,sans-serif;color:#12304a}.sentence-translation small{font-size:13px;color:#59748b}.sentence-translation p{margin:6px 0 0}.translation-close{position:absolute;top:7px;right:7px;width:28px;height:28px;border:1px solid #c2d5df;background:white;border-radius:7px;font-size:20px;cursor:pointer}.translation-editor{margin-top:14px}.translation-editor summary{cursor:pointer;font-size:1rem}.translation-editor [data-translation-fields]{max-height:430px;overflow:auto;margin:14px 0;display:grid;gap:14px}.translation-editor .field span{font-size:.875rem}.translation-editor textarea{box-sizing:border-box;width:100%;font-size:1rem;line-height:1.5;padding:10px;border:1px solid #baceda;border-radius:8px}
.mentoring-discovery{padding:4px 0 18px}.mentoring-discovery:last-child{padding-bottom:0}
.available-mentors{display:grid;gap:10px;margin-top:12px}.available-mentor{display:flex;flex-wrap:wrap;align-items:flex-start;justify-content:space-between;gap:14px;padding:14px 16px;border:1px solid #d7e4ec;border-radius:12px;background:#f8fbfd;min-width:0}
.available-mentor-person{display:flex;align-items:center;gap:10px;min-width:0;flex:1 1 170px}.available-mentor-person img{width:44px;height:44px;object-fit:cover;border-radius:50%;flex:none}.available-mentor-person b{overflow-wrap:anywhere}.available-mentor-person small{display:block;font-size:.875rem;color:#4b687d;margin-top:3px}
.available-mentor-times{display:flex;flex-wrap:wrap;align-items:center;gap:8px;flex:2 1 330px;min-width:0}.available-mentor-times .time-choice{padding:9px 12px;min-height:40px;font-size:.875rem;border-color:#9bbdc7;background:white;white-space:nowrap}.available-more{flex-basis:100%}.available-more summary{padding:6px 0;color:#087c87;cursor:pointer;font-size:.875rem}.available-more>div{display:flex;flex-wrap:wrap;gap:8px;padding-top:8px;max-height:220px;overflow:auto}.availability-empty{padding:12px 0;margin:0;color:#546c80;line-height:1.6}.availability-all{display:inline-block;margin-top:12px}.booking-discovery{margin-block:20px}.booking-filters{margin:20px 0}.booking-filters .panel{padding:18px;margin-top:12px}.booking-confirm{padding:20px;margin-block:20px}.chosen-meeting{font-weight:600}.booking-confirm .form{margin-top:18px}.booking-confirm .plan-preview{max-height:240px;overflow:auto;padding-right:10px}
.page,.lesson-main,.workspace-section,.panel,.section-head,.inline-form,.form-actions,.learning-focus{min-width:0}
.page .panel,.lesson-main .panel{max-width:100%;box-sizing:border-box}
.page>form.panel,.page>section.panel:not(.legal-page){padding:clamp(16px,2vw,24px)}
.workspace-page>.panel,.workspace-page>.learning-focus{margin-block:20px}
.mentoring-panel{padding:18px 22px!important;margin-block:20px;border-radius:14px}
.mentoring-panel h2{font-size:1.05rem;margin:0 0 14px;line-height:1.4}
.mentoring-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;padding:14px 0;border-top:1px solid #dae5ee}
.mentoring-row:last-child{padding-bottom:0}.mentoring-row>div{min-width:0}
.mentoring-row span,.mentoring-row small{display:block;overflow-wrap:anywhere}
.mentoring-row small{margin-top:5px;color:#536c80;font-size:.875rem}
.mentoring-row .form-actions{display:flex;flex-wrap:wrap;margin:0;gap:10px;flex-shrink:0;max-width:100%}
.mentoring-row>.form-actions .btn{max-width:100%;white-space:normal;text-align:center}
.lesson-main>.mentoring-row{padding:14px 16px;background:#fff;border:1px solid #d6e2ec;border-radius:12px;margin:16px 0}
.page .inline-form{gap:12px;row-gap:16px}.page .inline-form>.field{min-width:0;flex:1 1 180px}
.page .form input:not([type=checkbox]):not([type=radio]),.page .form select,.page .form textarea,.page .inline-form input,.page .inline-form select{max-width:100%;box-sizing:border-box}
.page .btn,.lesson-main .btn{max-width:100%;white-space:normal;overflow-wrap:anywhere;line-height:1.35}
.page .btn.outline,.lesson-main .btn.outline{border:1px solid #9cb3c7;background:#fff}
.page .section-head{flex-wrap:wrap;gap:12px}.page .section-head>*{min-width:0}
.page .table-wrap{max-width:100%;min-width:0;overscroll-behavior-inline:contain}
.page .result-form{min-width:0;width:min(360px,100%)}
.review-message+form,.review-message+.btn,.review-message+.form-actions,.feedback+form,.preserve-lines+form{margin-top:14px}
.review-message p{overflow-wrap:anywhere}.review-message,.learning-focus>div{min-width:0}
.learning-focus{flex-wrap:wrap;row-gap:16px}.learning-focus>div{flex:1 1 330px}.learning-focus .btn{flex-shrink:1}
.workspace-page .learning-focus+.workspace-section{margin-top:26px}
.nav,.nav>*{min-width:0}.user-menu summary span{max-width:190px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.page{padding-bottom:42px}.page .panel>h2:first-child{margin-top:0}
.chat-launch{position:fixed;right:20px;bottom:20px;z-index:70;display:inline-flex;align-items:center;gap:9px;padding:12px 17px;border-radius:28px;box-shadow:0 6px 24px #12324b26}
.chat-launch svg,.chat-send svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linejoin:round;stroke-linecap:round;flex:none}
.study-chat{position:fixed;inset:0;margin:auto;width:min(880px,calc(100vw - 40px));height:min(730px,calc(100dvh - 48px));max-height:calc(100dvh - 48px);max-width:calc(100vw - 40px);box-sizing:border-box;border:1px solid #cbdce7;border-radius:20px;padding:0;overflow:hidden;color:#12304a;background:#fff;box-shadow:0 24px 90px #081e3c40;font-size:1rem}
.study-chat[open]{display:flex;flex-direction:column}.study-chat::backdrop{background:#081e3c69}
.chat-topbar{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:18px 22px;background:#102e48;color:white;flex:none}
.study-chat h2,.study-chat h3,.study-chat p{margin:0}.study-chat h2{font-size:1.125rem;line-height:1.4}.chat-topbar p{font-size:.875rem;color:#c2d8e7;margin-top:3px}
.chat-icon{display:grid;place-items:center;flex:none;width:36px;height:36px;border:1px solid #bacddc;border-radius:10px;color:inherit;background:transparent;font-size:25px;cursor:pointer;padding:0;line-height:1}
.chat-topbar .chat-icon{border-color:#ffffff50}.chat-identity{padding:9px 20px!important;background:#fff4cf;color:#69501f;font-size:.875rem;border-bottom:1px solid #ead8a2}
.chat-body{flex:1;display:grid;grid-template-columns:240px minmax(0,1fr);min-height:0;overflow:hidden}
.chat-sidebar{display:flex;flex-direction:column;min-height:0;min-width:0;background:#f5f8fb;border-right:1px solid #dce6ee;padding:16px 12px}
.chat-sidebar h3{font-size:.875rem;padding:0 8px 12px;color:#526b80}
.chat-threads{display:flex;flex-direction:column;gap:6px;overflow:auto;min-height:0;flex:1;padding:2px}
.chat-threads button{display:flex;align-items:flex-start;gap:10px;width:100%;box-sizing:border-box;flex:none;text-align:left;border:1px solid transparent;border-radius:12px;background:transparent;padding:11px 10px;color:#12304a;cursor:pointer;font:inherit;line-height:1.45}
.chat-threads button:hover{background:#eaf1f6}.chat-threads button[aria-pressed=true]{background:#e0f2f2;border-color:#87c5c9}
.chat-thread-avatar{display:grid;place-items:center;width:34px;height:34px;flex:0 0 34px;border-radius:11px;background:white;color:#087f8a;font-size:14px;font-weight:800}
.chat-thread-copy{min-width:0;flex:1}.chat-thread-copy strong,.chat-thread-copy small{display:block;overflow-wrap:anywhere}.chat-thread-copy strong{font-size:.875rem}.chat-thread-copy small{font-size:.8125rem;color:#526b80;margin-top:3px}
.chat-unread{flex:none;border-radius:20px;padding:1px 6px;min-width:21px;text-align:center;background:#078b95;color:white;font-size:12px}
.chat-sidebar-note{font-size:.8125rem;line-height:1.5;color:#536c80;padding:14px 8px 0}
.chat-conversation{min-height:0;min-width:0;display:flex;flex-direction:column;overflow:hidden;background:#fbfdff}
.chat-conversation-head{display:flex;align-items:center;gap:10px;padding:14px 20px;border-bottom:1px solid #e0e8ef;background:white;flex:none}
.chat-conversation-head>div{min-width:0}.chat-conversation-head h3{font-size:1rem;overflow-wrap:anywhere}.chat-conversation-head p{font-size:.8125rem;color:#557086;margin-top:4px;line-height:1.45}
.chat-back{display:none}
.chat-messages{min-height:0;flex:1;overflow:auto;overscroll-behavior:contain;display:flex;flex-direction:column;gap:14px;padding:20px}
.chat-message{width:fit-content;max-width:88%;flex:none;border:1px solid #dce6ef;border-radius:14px 14px 14px 4px;padding:11px 14px;background:white;overflow-wrap:anywhere;line-height:1.6}
.chat-message.mine{align-self:flex-end;border-color:#b4dce0;border-radius:14px 14px 4px 14px;background:#e5f5f4}
.chat-message.system{align-self:center;max-width:95%;border:0;background:#edf2f6;border-radius:10px;font-size:.8125rem;color:#546b7e}
.chat-message>b{font-size:.8125rem;color:#287081;display:block;line-height:1.4}
.chat-message p{white-space:pre-wrap;margin:6px 0;font-size:.9375rem}.chat-message small{display:block;font-size:.75rem;color:#5a7385;text-align:right}
.chat-context{display:inline-block;margin-top:6px;font-size:.8125rem;text-decoration:underline}
.chat-empty{margin:auto!important;padding:28px 12px;text-align:center;max-width:310px;color:#5e7487;line-height:1.65}
.study-chat form{display:flex;align-items:flex-end;gap:10px;flex:none;padding:14px 18px 8px;border-top:1px solid #dce6ef;background:white;margin:0}
.study-chat textarea{flex:1;min-width:0;width:100%;max-height:130px;box-sizing:border-box;resize:vertical;border:1px solid #bfceda;border-radius:12px;padding:11px 13px;font:inherit;font-size:.9375rem;line-height:1.55;background:#f9fbfd;color:#12304a}
.study-chat textarea:focus{border-color:#078c98;outline:2px solid #078c9820}
.study-chat .chat-send{display:grid;place-items:center;flex:none;width:44px;height:44px;min-height:44px;padding:0;border:1px solid #078b95;border-radius:12px}
.chat-composer-note{font-size:.75rem;color:#5f7486;padding:0 18px 12px!important;background:white;flex:none}
.chat-state:empty{display:none}.chat-state{padding:8px 18px!important;font-size:.875rem;color:#88601c;flex:none}
.chat-history{border:0;background:transparent;color:#087f8a;text-decoration:underline;font:inherit;font-size:.8125rem;padding:9px 14px;cursor:pointer;flex:none}
.study-chat button:focus-visible{outline:3px solid #2ca8b1;outline-offset:2px}.study-chat [hidden]{display:none!important}
@media(max-width:720px){.mentoring-panel{padding:16px!important}.mentoring-row{align-items:stretch;flex-direction:column;gap:12px}.mentoring-row .form-actions{flex-shrink:1;justify-content:flex-start}.page .inline-form>.btn{flex:1 1 auto}.nav .user-menu summary span{max-width:125px}.chat-launch{right:14px;bottom:14px}.chat-launch span{display:none}.study-chat{inset:0;width:100%;max-width:100%;height:100dvh;max-height:100dvh;border:0;border-radius:0}.chat-topbar{padding:14px 16px}.chat-body{display:flex}.chat-sidebar{width:100%;border:0}.chat-conversation{display:none;width:100%}.study-chat[data-active-thread] .chat-sidebar{display:none}.study-chat[data-active-thread] .chat-conversation{display:flex}.chat-back{display:grid}.chat-messages{padding:16px;gap:12px}.chat-message{max-width:92%}.study-chat form{padding:12px 12px 8px}.chat-composer-note{padding-bottom:max(12px,env(safe-area-inset-bottom))!important}.chat-conversation-head{padding:12px 14px}}
@media(prefers-reduced-motion:no-preference){.study-chat[open]{animation:chat-appear .16s ease-out}@keyframes chat-appear{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}}