:root{font-family:"Malgun Gothic","맑은 고딕",system-ui,sans-serif;color:#253b36;background:#f8f9f5;--green:#286451;--line:#dce4dc;--muted:#5f7069;--blue:#255b8d}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0}a{color:var(--green)}button,.button,input,textarea,select{font:inherit}button,.button{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px;border:1px solid #bfcfc4;border-radius:10px;background:white;color:var(--green);padding:9px 16px;text-decoration:none;cursor:pointer;font-weight:650}button:hover,.button:hover{background:#eef5ee}button:disabled{opacity:.55;cursor:wait}.primary{background:var(--green);color:white;border-color:var(--green)}.primary:hover{background:#194c3c}.danger{color:#9c3333}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #77aacb;outline-offset:3px}h1,h2,h3,p{overflow-wrap:anywhere}h1{font-size:clamp(28px,3.5vw,44px);letter-spacing:-.045em;line-height:1.25;margin:8px 0 22px}h2{font-size:23px;letter-spacing:-.035em;margin:0 0 20px}h3{font-size:18px;margin:0 0 12px}p{line-height:1.75}.site-head{background:#fff;border-bottom:1px solid var(--line);padding:17px max(20px,calc((100% - 1240px)/2));display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{font-weight:800;font-size:20px;text-decoration:none;white-space:nowrap}.brand span{font-weight:500;font-size:14px;margin-left:14px}.head-actions,.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.head-actions{justify-content:flex-end;font-size:14px}main{max-width:1280px;margin:auto;padding:30px 24px 70px}.entry{display:grid;grid-template-columns:1.1fr 1fr;gap:70px;align-items:center;max-width:1040px;margin:60px auto}.eyebrow{font-size:14px;color:var(--green);font-weight:800;letter-spacing:.06em;margin:0 0 12px}.lead{font-size:18px;color:var(--muted)}.steps{line-height:2.5;padding-left:22px;margin:26px 0}.panel{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;min-width:0}.compact{max-width:600px;margin:65px auto}.muted{color:var(--muted)}.small,small{font-size:13px}label{display:grid;gap:7px;font-size:14px;font-weight:700;min-width:0}form{display:grid;gap:16px}input,textarea,select{width:100%;min-width:0;max-width:100%;border:1px solid #c5d2c8;border-radius:9px;background:#fbfcfa;padding:11px;color:#253b36;font-size:16px}textarea{resize:vertical;line-height:1.6}input[type=file]{font-size:14px}.room-head{display:flex;justify-content:space-between;gap:20px;align-items:center;margin:20px 0}.room-head h1{font-size:32px;margin-bottom:8px}.room-head h2{margin:0}.admin-grid,.workspace-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:24px;align-items:start}.admin-grid{margin-bottom:36px}.workspace-grid{margin-top:30px}.stack{display:grid;gap:16px;margin-top:18px}.card{background:white;border:1px solid var(--line);border-radius:15px;padding:20px;min-width:0}.card p{margin:9px 0}.card pre{white-space:pre-wrap;overflow-wrap:anywhere;background:#f4f7f1;border-radius:10px;padding:16px;font:inherit;line-height:1.75;max-height:450px;overflow:auto}.tag{display:inline-block;font-size:12px;font-weight:700;color:var(--green);background:#edf4e9;border-radius:5px;padding:4px 8px;margin-bottom:10px}.tag.used{color:#6c715b;background:#f0f0e4}.draft-card{border-left:4px solid var(--green)}.draft-card.used{border-left-color:#b8bfaf}.next-box{padding:22px;border:2px solid var(--green);border-radius:16px;background:#edf5e9;margin:20px 0}.next-box p{margin:8px 0 15px}.two-fields{display:grid;grid-template-columns:2fr 1fr;gap:18px}.library-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:25px}#library-zone{margin-top:40px}#notice{position:sticky;top:10px;z-index:30;border-radius:10px;background:#fff0db;color:#6f4724;padding:0;box-shadow:0 5px 22px #253b3610}#notice:not(:empty){padding:14px 18px;margin-bottom:20px}#notice[data-ok=true]{background:#e3f1e6;color:#24543a}#identity{max-width:240px;overflow-wrap:anywhere}#connection{font-size:13px;color:var(--muted)}footer{text-align:center;padding:25px;color:var(--muted);font-size:13px}.access{display:grid;grid-template-columns:160px 1fr;gap:24px;align-items:center}.access img{width:160px;height:160px;background:#fff;border:1px solid var(--line)}.access code{font-size:30px;letter-spacing:.1em}.invite-output{overflow-wrap:anywhere;background:#f0f5ec;padding:16px;border-radius:10px}.room-controls{margin:24px 0}.room-controls summary{cursor:pointer;font-weight:700;padding:14px 0}.room-controls details{margin-top:20px}dialog{border:1px solid var(--line);border-radius:18px;width:min(470px,calc(100% - 30px));padding:25px;color:#253b36}dialog::backdrop{background:#172c275e}.beam-mode .site-head,.beam-mode #management,.beam-mode #teacher-zone,.beam-mode #library-zone,.beam-mode .questions,.beam-mode footer{display:none!important}.beam-mode .workspace-grid{grid-template-columns:1fr}.beam-mode .card{font-size:24px}.beam-mode .room-head h1{font-size:44px}
@media(max-width:780px){.site-head{align-items:flex-start;padding:15px}.brand{font-size:18px}.brand span{display:block;margin:4px 0 0;font-size:12px}.head-actions{gap:8px}#identity{max-width:150px;font-size:12px}main{padding:20px 16px 45px}.entry{grid-template-columns:1fr;gap:24px;margin:24px auto}.entry h1{font-size:36px}.lead{font-size:16px}.steps{margin:16px 0}.panel{padding:22px}.compact{margin:30px auto}.admin-grid,.workspace-grid,.library-grid{grid-template-columns:1fr}.room-head{align-items:flex-start;flex-wrap:wrap;gap:12px}.room-head h1{font-size:28px}.two-fields{grid-template-columns:1fr}.access{grid-template-columns:110px minmax(0,1fr);gap:15px}.access img{width:110px;height:110px}.access code{font-size:22px}.card{padding:17px}.toolbar button{font-size:14px;padding:9px 12px}.beam-mode .card{font-size:20px}.beam-mode .room-head h1{font-size:30px}}
.beam-access{display:none}.beam-mode .beam-access{display:grid;margin-bottom:25px}.draft-card .toolbar select{width:auto;max-width:220px}
.seminar-access{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:18px 22px;border:2px solid var(--green);border-radius:16px;background:#eef6e9;margin-bottom:24px}.seminar-access .eyebrow{margin:0}.seminar-access code{font-size:30px;font-weight:800;letter-spacing:.1em;margin-right:auto}.room-code-line{font-size:20px;font-weight:800;letter-spacing:.08em}.lesson-layout{display:grid;grid-template-columns:210px minmax(0,1fr);gap:24px;align-items:start}.lesson-sidebar{position:sticky;top:75px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px}.lesson-sidebar h2{font-size:18px}.lesson-sidebar nav{display:grid;gap:8px}.lesson-sidebar button{justify-content:flex-start;width:100%}.lesson-sidebar button[aria-current=true],.mode-buttons button[aria-pressed=true]{background:var(--green);color:white}.lesson-main{min-width:0}.mobile-lesson{display:none}.add-material{margin-top:18px;padding:18px}.add-material summary,#library-details>summary{font-size:17px;font-weight:800;cursor:pointer;padding:5px}.material-composer{margin-top:22px}.check-label{display:flex;align-items:center;gap:10px}.check-label input{width:20px;min-width:20px;height:20px}.material-preview{overflow-wrap:anywhere}.material-preview img{display:block;width:auto;max-width:100%;max-height:240px;object-fit:contain;margin:12px 0;border-radius:8px}.material-preview pre{white-space:pre-wrap;overflow-wrap:anywhere}.file-info{color:var(--blue);font-size:14px}.qr-dialog{text-align:center;max-width:500px;width:calc(100% - 32px)}.qr-dialog img{width:100%;max-width:320px}.mode-buttons{margin:18px 0}body[data-privileged=true][data-mode=prepare] #workspace .workspace-grid,body[data-privileged=true][data-mode=prepare] #next-box{display:none}body[data-privileged=true][data-mode=progress] .add-material,body[data-privileged=true][data-mode=progress] #drafts,body[data-privileged=true][data-mode=progress] .room-controls{display:none}body[data-privileged=true][data-mode=progress] .workspace-grid{grid-template-columns:1fr}.beam-mode .seminar-access,.beam-mode .lesson-sidebar,.beam-mode #back-rooms{display:none!important}.beam-mode .lesson-layout{grid-template-columns:1fr}.beam-mode .mobile-lesson{display:grid}#back-rooms{margin-bottom:14px}#join input[name=code]{text-transform:uppercase}
@media(max-width:780px){.lesson-layout{grid-template-columns:1fr}.lesson-sidebar{display:none}.mobile-lesson{display:grid}.seminar-access{padding:15px;gap:9px}.seminar-access code{font-size:26px}.seminar-access .eyebrow{width:100%}.seminar-access button{font-size:13px;padding:8px 10px}.material-composer{margin-top:16px}}
/* The code sits next to the title; preparation fields are never folded away. */
.workspace-heading{width:100%;min-width:0}.seminar-title-row{display:flex;align-items:center;justify-content:space-between;gap:22px;width:100%}.seminar-title-row h1{flex:1;min-width:0;margin:0}.seminar-title-row .seminar-access{flex:0 0 440px;max-width:100%;margin:0;padding:14px 16px;gap:8px}.seminar-title-row .seminar-access code{font-size:32px;letter-spacing:.12em}.seminar-title-row .seminar-access .eyebrow{width:100%;font-size:12px}.seminar-title-row .seminar-access button{min-height:36px;padding:7px 10px;font-size:12px}.add-material{border:2px solid #9bb8a8;background:#fff;box-shadow:0 5px 20px #224b3d08;padding:22px}.add-material h3{font-size:22px;margin:0 0 6px}.add-material .material-composer{margin-top:16px}.add-material textarea{min-height:150px}.deleted-rooms{margin-top:20px}.deleted-rooms summary{cursor:pointer;font-weight:700}.deleted-rooms .card{margin-top:12px}#rooms>.card>.danger{margin-left:8px}
@media(max-width:780px){.seminar-title-row{align-items:stretch;flex-direction:column;gap:15px}.seminar-title-row .seminar-access{flex:auto;width:100%;padding:14px}.seminar-title-row h1{width:100%}.add-material{padding:18px}}#workspace>.room-head{display:block}#workspace>.room-head>.toolbar{justify-content:flex-end;margin-top:12px}.seminar-title-row{display:grid;grid-template-columns:minmax(0,1fr) 440px}.seminar-title-row h1{width:100%}.seminar-title-row .seminar-access{width:100%}
@media(max-width:780px){.seminar-title-row{grid-template-columns:minmax(0,1fr)}}

/* Compact lecture desk and messenger. */
body[data-admin] main{max-width:1800px;padding:14px 22px 40px}
body[data-admin] .site-head{padding:10px 22px}.site-head .head-actions{gap:12px}
body[data-admin] #workspace>.room-head{margin:0 0 16px;position:relative}
body[data-admin] .workspace-heading>.eyebrow{display:none}
body[data-admin] #back-rooms{min-height:30px;padding:5px 10px;font-size:12px;margin:0 0 10px}
body[data-admin] .seminar-title-row{grid-template-columns:minmax(0,1fr) 460px;gap:20px;align-items:center}
body[data-admin] .seminar-title-row h1{font-size:25px;line-height:1.35;margin:0}
body[data-admin] .seminar-title-row .seminar-access{display:grid;grid-template-columns:auto auto auto;gap:6px 10px;padding:10px 14px;border-width:1px;background:#f1f7f3}
body[data-admin] .seminar-access .eyebrow{font-size:11px;margin:0;grid-column:1/-1}
body[data-admin] .seminar-access code{font-size:25px;letter-spacing:.07em;grid-column:1/-1;line-height:1.1;margin:0}
body[data-admin] .seminar-title-row .seminar-access button{min-height:28px;font-size:11px;padding:5px 8px;white-space:nowrap}
body[data-admin] #workspace>.room-head>.toolbar{margin-top:8px;gap:8px}
body[data-admin] #workspace>.room-head>.toolbar button{min-height:30px;font-size:12px;padding:5px 10px}
body[data-admin] .lesson-layout{grid-template-columns:155px minmax(0,1fr) var(--student-width,360px);gap:18px;align-items:start}
.lesson-sidebar{top:14px;padding:12px}.lesson-sidebar h2{font-size:15px;margin-bottom:12px}.lesson-sidebar nav{gap:6px}.lesson-sidebar button{min-height:36px;font-size:13px;padding:8px;white-space:nowrap}
.lesson-main>.toolbar{font-size:12px}.mode-buttons{margin:10px 0;gap:6px}.mode-buttons button{min-height:34px;font-size:12px;padding:7px 10px}
#teacher-zone>.room-head{margin:12px 0;gap:10px}#teacher-zone>.room-head h2{font-size:19px}#teacher-zone>.room-head button{min-height:32px;font-size:12px;padding:6px 10px}
body[data-privileged=true][data-mode=progress] #drafts{display:grid}
body[data-privileged=true] .workspace-grid{grid-template-columns:1fr;margin-top:16px}
.draft-card{padding:17px}.draft-card h3{font-size:17px}.draft-card pre{font-size:14px;line-height:1.65;padding:12px;max-height:230px}.draft-card .toolbar{gap:6px}.draft-card .toolbar button{min-height:32px;font-size:12px;padding:6px 9px}
.sent-status,.reaction-count{font-size:12px;font-weight:700;padding:5px 8px;border-radius:6px;background:#e7f3eb;color:#265f49}
.sent-management summary{font-size:13px;cursor:pointer;padding:12px 0;font-weight:700}
.student-preview{position:sticky;top:14px;height:calc(100dvh - 28px);max-height:850px;min-height:300px;border:1px solid #cad8d5;border-radius:16px;background:#e9f0ed;display:flex;flex-direction:column;overflow:hidden;min-width:0;box-shadow:0 8px 28px #193e3010}
.preview-head{flex:none;padding:10px;background:#fff;border-bottom:1px solid #d5e0d9}.rail-tabs{display:flex;gap:6px}.rail-tabs button{flex:1;font-size:13px;min-height:34px;padding:7px 8px;white-space:nowrap;border-color:transparent;background:#f0f4f2}.rail-tabs button[aria-pressed=true]{background:#286451;color:#fff}.has-pending{background:#fff0cf!important;color:#755018!important;border-color:#e6c479!important}
.rail-chat-pane{flex:1;min-height:0;display:flex;flex-direction:column}.preview-title{font-size:12px;font-weight:700;margin:10px 12px 5px}.preview-width{display:flex;align-items:center;gap:8px;font-size:10px;padding:0 12px 5px;flex:none;color:#657b71}.preview-width input{width:100px;min-width:0;padding:0;height:18px}
.chat-feed{flex:1;min-height:0;overflow:auto;padding:12px;display:flex;flex-direction:column;gap:12px;overscroll-behavior:contain}
.rail-question-pane{flex:1;min-height:0;overflow:auto;padding:12px;background:#f7faf8}.rail-question-pane .questions>h2{font-size:15px;margin:3px 0 12px}.rail-question-pane .stack{margin-top:0;gap:10px}.rail-question-pane .card{padding:12px}.rail-question-pane .card h3{font-size:14px}.rail-question-pane .card p{font-size:13px;line-height:1.6}.rail-question-pane textarea{font-size:13px;padding:8px;min-height:70px}.rail-question-pane button{min-height:30px;font-size:12px;padding:6px 9px;margin-top:6px}
.student-preview.collapsed{display:none}.lesson-layout:has(.student-preview.collapsed){grid-template-columns:155px minmax(0,1fr)!important}
.message-card{flex:none;border:1px solid #e2e8e3!important;border-radius:4px 14px 14px 14px!important;padding:13px!important;background:#fff;box-shadow:0 2px 5px #254f3d05}.message-card.pinned{border:3px solid #286451!important}.message-card h3{font-size:14px;margin:0 0 8px;line-height:1.5}.message-card .tag{font-size:10px;padding:3px 6px;margin-bottom:7px;background:#edf4ee}.message-card pre{font-size:13px;line-height:1.7;background:#f6f8f5;padding:10px;border-radius:8px;max-height:none;overflow:visible;margin:6px 0 10px}.message-card .file-info{font-size:12px}.message-card .toolbar{gap:5px}.message-card .toolbar button,.message-card a.button{font-size:11px;min-height:28px;padding:5px 7px;white-space:nowrap;border-radius:7px;font-weight:600}.message-card button:disabled{opacity:.8;cursor:default}.message-card .material-preview img{max-height:200px}
body[data-role=participant]{background:#e9f0ed}
body[data-role=participant] .site-head{padding:8px 12px;height:48px;gap:12px;border-bottom-color:#d3dfd8;background:#fff}
body[data-role=participant] .brand{font-size:15px;white-space:nowrap}body[data-role=participant] .brand span{display:none}
body[data-role=participant] .head-actions{flex:1;min-width:0;gap:8px;flex-wrap:nowrap;font-size:11px}
body[data-role=participant] #identity{min-width:0;max-width:160px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:11px}
body[data-role=participant] #logout{min-height:28px;padding:5px 8px;font-size:11px;border:0;background:#f0f4f1}
body[data-role=participant] main{max-width:540px;height:calc(100dvh - 48px);padding:0;margin:auto;display:flex;flex-direction:column;overflow:hidden}
body[data-role=participant] #workspace{min-height:0;flex:1;display:flex;flex-direction:column;border:0;border-radius:0;background:transparent;padding:0}
body[data-role=participant] #workspace>.room-head{margin:0;padding:10px 12px 7px;flex:none;display:flex;flex-wrap:nowrap;align-items:center;border-bottom:1px solid #d9e3dc;gap:8px;background:#f7faf7}
body[data-role=participant] .room-head>div:first-child{min-width:0;flex:1}body[data-role=participant] .room-head h1{font-size:14px;font-weight:750;line-height:1.5;margin:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
body[data-role=participant] .room-head .eyebrow{display:none}body[data-role=participant] .room-head>.toolbar{flex:none;flex-wrap:nowrap;gap:6px}body[data-role=participant] #connection{font-size:10px;white-space:nowrap}body[data-role=participant] #refresh{font-size:10px;padding:4px 6px;min-height:26px;border:0;background:#eaf0eb}
body[data-role=participant] #workspace>.toolbar{flex:none;padding:7px 12px;background:#f7faf7;gap:8px}body[data-role=participant] #workspace>.toolbar label{display:flex;align-items:center;font-size:11px;gap:8px}body[data-role=participant] #lesson{width:78px;font-size:12px;padding:5px 7px;border-radius:7px;background:#fff}body[data-role=participant] #member-count{font-size:10px}
body[data-role=participant] .workspace-grid{display:flex;flex-direction:column;flex:1;min-height:0;margin:0;gap:0}body[data-role=participant] .workspace-grid>section:first-child{min-height:0;flex:1;display:flex;flex-direction:column}body[data-role=participant] .workspace-grid>section:first-child>h2{display:none}
body[data-role=participant] #posts{flex:1;min-height:0;margin:0;padding:12px;display:flex;flex-direction:column;gap:12px;overflow:auto;overscroll-behavior:contain}
body[data-role=participant] .questions{flex:none;background:#fff;border-top:1px solid #d3dfd6;padding:8px 12px;display:flex;gap:8px;align-items:start;flex-wrap:wrap}body[data-role=participant] .questions>h2{display:none}
.question-compose{flex:1;min-width:0}.question-history{flex:1;min-width:0;font-size:11px}.question-compose>summary,.question-history>summary{cursor:pointer;font-size:11px;font-weight:700;list-style:none;border:1px solid #d1ded5;border-radius:8px;padding:8px 10px;text-align:center;white-space:nowrap;color:#286451;background:#f6faf6}.question-compose>summary::-webkit-details-marker,.question-history>summary::-webkit-details-marker{display:none}
.question-compose[open],.question-history[open]{flex-basis:100%}.question-compose[open]>summary{background:#e6f1e9}
body[data-role=participant] #question-form{display:grid;grid-template-columns:minmax(0,1fr) auto;padding:10px 0 0;gap:6px;background:transparent}body[data-role=participant] #question-form label{font-size:11px;gap:4px}body[data-role=participant] #question-form textarea{font-size:13px;min-height:56px;height:56px;padding:8px;resize:vertical;max-height:120px}body[data-role=participant] #question-form button{min-height:32px;align-self:end;font-size:12px;padding:6px 10px}body[data-role=participant] #question-form p{grid-column:1/-1;font-size:10px;line-height:1.4;margin:0;color:#6e8076}
.question-history #questions{max-height:26vh;overflow:auto;margin-top:8px}.question-history .card{padding:10px}.question-history .card h3{font-size:12px}.question-history .card p{font-size:12px}
body[data-role=participant] #material-downloads{display:none}body[data-role=participant] footer{display:none}
#notice:not(:empty){position:fixed;top:auto;bottom:12px;left:50%;transform:translateX(-50%);width:max-content;max-width:min(90vw,650px);margin:0;padding:10px 14px;font-size:12px;box-shadow:0 6px 24px #253b3620;pointer-events:none}
.beam-mode .student-preview,.beam-mode #toggle-student-preview,.beam-mode #question-alert{display:none!important}.beam-mode .lesson-layout{grid-template-columns:1fr!important}
@media(max-width:1100px){body[data-admin] .lesson-layout{grid-template-columns:145px minmax(0,1fr)}.student-preview{position:relative;top:0;grid-column:2;height:650px;max-height:80dvh}.preview-width{display:none}body[data-admin] .seminar-title-row{grid-template-columns:minmax(0,1fr) 330px}.lesson-layout:has(.student-preview.collapsed){grid-template-columns:145px minmax(0,1fr)!important}}
@media(max-width:780px){body[data-admin] main{padding:12px}body[data-admin] .lesson-layout,.lesson-layout:has(.student-preview.collapsed){grid-template-columns:minmax(0,1fr)!important}.student-preview{grid-column:1}.seminar-title-row,body[data-admin] .seminar-title-row{grid-template-columns:minmax(0,1fr)}body[data-admin] .seminar-title-row h1{font-size:21px}body[data-admin] .site-head{padding:10px 12px}.site-head .head-actions>a{display:none}}
/* Fit the first desk view and keep the message column full width. */
body[data-admin] .seminar-access .eyebrow{grid-column:1;align-self:center;white-space:nowrap}body[data-admin] .seminar-access code{grid-column:2/-1;grid-row:1;text-align:right;font-size:24px}
.student-preview{height:calc(100dvh - 250px);min-height:340px}
body[data-role=participant] .workspace-grid>section{width:100%;align-self:stretch}body[data-role=participant] .message-card{width:100%}
@media(max-width:1100px){.student-preview{height:650px;max-height:80dvh}}/* 2026-10-16: branded lecture desk and messenger presentation. */
:root{--green:#24634f;--line:#e0e7e2;--muted:#75857b}
body[data-admin]{background:#f3f5f2}body[data-admin] .site-head{border:0;box-shadow:0 1px 0 #244d3810;background:#fff}
body[data-admin] .brand{font-size:18px;letter-spacing:-.06em}body[data-admin] .brand:before{content:'';display:inline-block;width:22px;height:22px;background:url('/favicon.ico') center/contain no-repeat;vertical-align:middle;margin-right:9px}
body[data-admin] main{padding:18px 24px 40px}body[data-admin] #workspace>.room-head{background:#fff;border-radius:16px;padding:14px 18px;box-shadow:0 4px 18px #244d3805;margin-bottom:18px}
body[data-admin] .seminar-title-row h1{font-size:23px;letter-spacing:-.045em;color:#193e30}body[data-admin] .seminar-title-row .seminar-access{background:#f3f8f4;border:0;border-radius:12px;padding:10px 12px}
body[data-admin] #back-rooms{border:0;background:transparent;color:#7c8c82;padding:0;min-height:24px;margin-bottom:4px;font-weight:500}
body[data-admin] #workspace>.room-head>.toolbar{margin-top:6px}.lesson-sidebar{border:0;border-radius:14px;box-shadow:0 3px 16px #244d3805;padding:14px 10px}.lesson-sidebar h2{font-size:12px;color:#839286;letter-spacing:.03em;padding:0 7px;margin-bottom:14px}.lesson-sidebar button{border:0;border-radius:8px;color:#6e8275;font-weight:500;padding:10px;font-size:12px}.lesson-sidebar button[aria-current=true]{background:#e4efe7;color:#22533e;font-weight:800}
.mode-buttons{padding:5px;background:#e7ede7;border-radius:10px;width:fit-content;max-width:100%;gap:3px;margin-bottom:18px}.mode-buttons button{border:0;background:transparent;font-size:11px;min-height:30px;padding:6px 9px;color:#6f8275}.mode-buttons button[aria-pressed=true]{background:#fff!important;color:#21543d!important;box-shadow:0 2px 7px #244d3810}.mode-buttons #question-alert.has-pending{background:#fff0d5!important}
#selected-lesson{font-size:18px!important;font-weight:750}.draft-card{position:relative;border:0;border-left:0;border-radius:14px;padding:20px 22px;box-shadow:0 2px 10px #244d3805;transition:box-shadow .15s}.draft-card:hover{box-shadow:0 5px 20px #244d3810}.draft-card .tag{font-size:10px;letter-spacing:.015em;color:#738779;background:#f0f5ef;margin-bottom:10px}.draft-card h3{font-size:17px;letter-spacing:-.035em;color:#223e2e}.draft-card pre{background:#f7f9f5;border:1px solid #eef2eb;border-radius:10px;color:#516555;font-size:13px;line-height:1.8;margin:12px 0}
.draft-card>.toolbar{border-top:1px solid #f0f3ee;padding-top:12px;margin-top:14px}.draft-card>.toolbar button{border:0;color:#869387;background:transparent;font-size:11px;padding:5px 7px}.draft-card>.toolbar button.primary{background:#24634f;color:#fff;min-width:80px;border-radius:8px;margin-right:auto;padding:7px 14px}.draft-card>.toolbar .sent-status{margin-right:auto;font-size:11px;background:#edf5ec;color:#608365;padding:6px 10px}.draft-card>.toolbar .danger{color:#a68780;font-weight:500}
.student-preview{border:0;border-radius:18px;background:#e9efea;box-shadow:0 8px 32px #244d3810}.preview-head{border:0;background:#17483c;padding:10px}.rail-tabs button{background:transparent;color:#a9c7b8;font-size:12px;border:0;border-radius:9px}.rail-tabs button[aria-pressed=true]{background:#ffffff1c;color:#fff}.rail-tabs button.has-pending{background:#fff0d5!important;color:#755018!important}
.preview-title{color:#5e7c6b;font-size:11px;margin:12px 14px 6px}.preview-width{font-size:9px;color:#9aa99d;padding-left:14px;padding-bottom:8px}.preview-width input{height:12px;accent-color:#8ea998}.chat-feed{padding:12px 12px 18px 43px;gap:20px;background:#e9efea}
.message-card{position:relative;border:0!important;border-radius:2px 14px 14px 14px!important;padding:13px 14px 10px!important;box-shadow:0 2px 7px #284d3b07;background:#fff}.message-card:before{content:'';position:absolute;left:-5px;top:15px;width:10px;height:10px;background:#fff;transform:rotate(45deg)}.message-card.pinned{border:3px solid #387d60!important}.message-card.pinned:before{display:none}
.message-sender{font-size:10px;font-weight:700;color:#718d7b;margin-bottom:8px}.sender-avatar{position:absolute;left:-34px;top:0;width:25px;height:25px;object-fit:contain;background:#fff;border-radius:9px;padding:4px;box-shadow:0 2px 5px #244d3808}.message-card .tag{font-size:9px;background:#f0f5ee;color:#8b9c8c;padding:2px 5px;border-radius:4px;margin:0 0 6px}.message-card h3{font-size:14px;font-weight:750;color:#294634;letter-spacing:-.035em;margin:0 0 9px}.message-card pre{background:transparent;padding:0;border:0;font-size:12px;line-height:1.85;color:#506251;margin:0 0 10px}
.message-card .material-preview.is-collapsed pre{display:-webkit-box;-webkit-line-clamp:5;-webkit-box-orient:vertical;overflow:hidden;max-height:9.25em}
.message-card .expand-message{display:block;border:0;border-radius:0;background:transparent;padding:4px 0 8px;color:#5d9279;font-size:10px;min-height:24px;text-align:left;box-shadow:none}
.message-card .toolbar{border-top:1px solid #f0f4ee;padding-top:8px;gap:4px}.message-card .message-actions .copy-action{flex-basis:100%;background:#edf5ef;border:0;color:#28694c;font-weight:750;min-height:30px;margin-bottom:4px;border-radius:7px}.message-card .message-actions button:not(.copy-action){background:transparent;border:0;padding:3px 4px;min-height:23px;font-size:10px;color:#90a08f;font-weight:500}.message-card .message-actions button:not(.copy-action):hover{color:#24634f;background:#f3f8f2}.message-card a.button{background:#f0f6f0;border:0;color:#4c7759;font-size:11px;min-height:30px;margin:4px 0 8px}.message-time{font-size:9px;color:#a7b3a7;display:block;text-align:right;margin-top:3px;line-height:1.4}
.file-info{padding:12px 10px!important;background:#f2f6ef;border-radius:8px;margin:3px 0 8px!important;font-weight:650;word-break:break-all}.file-info:before{content:'↓';font-size:17px;margin-right:9px;font-weight:400;color:#77946b}.message-card .file-info{font-size:11px}
.message-card .material-preview img{width:100%;max-height:230px;border-radius:9px;object-fit:contain;cursor:zoom-in;margin:0 0 8px}.image-viewer{width:min(960px,94vw);padding:16px;background:#fff;max-height:94dvh}.image-viewer>button{display:flex;margin:0 0 12px auto;min-height:32px;font-size:13px}.image-viewer>img{display:block;max-width:100%;max-height:78dvh;object-fit:contain;margin:auto}
body[data-role=participant]{background:#e9efea}body[data-role=participant] .site-head{background:#17483c;border:0;height:46px;padding:8px 13px}body[data-role=participant] .brand{color:#fff;font-size:14px;font-weight:750;letter-spacing:-.035em}body[data-role=participant] .brand:before{content:'';display:inline-block;background:#fff url('/favicon.ico') center/18px no-repeat;width:25px;height:25px;vertical-align:middle;border-radius:8px;margin-right:8px}body[data-role=participant] #identity{color:#b7d0c2;font-size:10px}body[data-role=participant] #logout{background:#ffffff12;color:#c8ddd0;font-size:10px;min-height:25px;padding:4px 7px;border-radius:6px}
body[data-role=participant] main{height:calc(100dvh - 46px)}body[data-role=participant] #workspace>.room-head{background:#17483c;border:0;padding:0 13px 11px;gap:8px}body[data-role=participant] .room-head h1{font-size:13px;color:#e6f1e9;font-weight:600;letter-spacing:-.025em}body[data-role=participant] #connection{font-size:0;color:#b9d4c4}body[data-role=participant] #connection:before{content:'';display:block;width:6px;height:6px;background:#a6c6b5;border-radius:50%}body[data-role=participant] #refresh{background:#ffffff0d;color:#a9c8b6;font-size:9px;padding:4px 6px;min-height:23px}
body[data-role=participant] #workspace>.toolbar{background:#f5f8f3;border:0;padding:9px 13px;box-shadow:0 1px 0 #17483c05}body[data-role=participant] #workspace>.toolbar label{color:#90a18f;font-size:10px;gap:10px}body[data-role=participant] #lesson{border:0;background:#e9f0e5;color:#59784e;font-size:11px;font-weight:700;border-radius:6px;width:75px;padding:5px 8px}
body[data-role=participant] #posts{background:#e9efea;padding:18px 13px 20px 45px;gap:21px}.questions .question-card{background:transparent;box-shadow:none;border:0;padding:0}.question-history .question-card{padding:10px 0;border-bottom:1px solid #edf2eb}
.question-history .question-card>h3{text-align:right;color:#8d9c8d;font-size:10px;margin:4px 0 6px}.question-history .question-text{background:#e0edde;color:#375a37;padding:10px 12px;border-radius:12px 2px 12px 12px;margin:0 0 12px 25px;line-height:1.7}.answer-bubble{background:#fff;border:1px solid #e8efe5;border-radius:2px 12px 12px 12px;margin:5px 25px 5px 0;padding:10px 12px;color:#4b644f}.answer-bubble p{margin:4px 0!important;line-height:1.7}.answer-label{display:block;font-size:10px;color:#8a9e87;font-weight:700}
body[data-role=participant] .questions{background:#f8faf6;border-top:1px solid #dfe7da;padding:9px 12px;gap:8px}.question-compose>summary,.question-history>summary{border:0;background:#edf3e8;color:#718b63;font-size:11px;font-weight:600;border-radius:8px;padding:9px 10px}.question-compose>summary{background:#24634f;color:#fff}.question-compose[open]>summary{background:#edf3e8;color:#617b57}
body[data-role=participant] #question-form textarea{background:white;border:1px solid #dbe6d4;border-radius:9px}body[data-role=participant] #question-form button{background:#24634f;color:#fff;border:0;border-radius:8px}
.rail-question-pane{background:#f7faf6}.rail-question-pane .question-card{background:#fff;padding:14px;border-radius:12px;margin:0 0 10px}.rail-question-pane .question-card .tag{font-size:10px;background:#fff1d7;color:#96783d}.rail-question-pane .question-card h3{font-size:13px}.rail-question-pane .question-text{color:#54705a;font-size:13px;line-height:1.7}.rail-question-pane textarea{background:#f6f9f3;border:1px solid #e2eadd;border-radius:8px}.rail-question-pane button{background:#edf4e8;border:0;font-size:11px;color:#69855e}.rail-question-pane .questions>h2{color:#82967a;font-size:12px}
body[data-admin] .sent-management .message-card{border:1px solid #e2e8e0!important;border-radius:12px!important}body[data-admin] .sent-management .sender-avatar{position:static;width:18px;height:18px;padding:2px;margin-right:6px;vertical-align:middle}body[data-admin] .sent-management .message-card:before{display:none}
@media(max-width:780px){body[data-admin] main{padding:10px}.draft-card{padding:16px}.mode-buttons button{font-size:10px;padding:6px 7px}.message-card{padding:12px!important}}@media(max-width:780px){body[data-admin] #workspace>.room-head{padding:12px}body[data-admin] .seminar-title-row .seminar-access{grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}body[data-admin] .seminar-access .eyebrow{grid-column:1/-1;grid-row:1}body[data-admin] .seminar-access code{grid-column:1/-1;grid-row:2;text-align:left;font-size:22px}body[data-admin] .seminar-title-row .seminar-access button{font-size:10px;padding:5px 4px}}/* Readable chat sizes, independently selected on each participant device. */
body[data-role=participant],.student-preview{--chat-font:14px;--chat-heading:15px}
body[data-role=participant][data-chat-size=small]{--chat-font:12px;--chat-heading:14px}
body[data-role=participant][data-chat-size=large]{--chat-font:16px;--chat-heading:17px}
body[data-role=participant] .message-card pre,.student-preview .message-card pre{font-size:var(--chat-font);line-height:1.75}
body[data-role=participant] .message-card h3,.student-preview .message-card h3{font-size:var(--chat-heading)}
body[data-role=participant] .message-card .file-info{font-size:calc(var(--chat-font) - 1px)}
body[data-role=participant] .message-card .message-actions button:not(.copy-action){font-size:calc(var(--chat-font) - 2px);color:#718670}
body[data-role=participant] .message-card .copy-action{font-size:calc(var(--chat-font) - 1px)}
body[data-role=participant] .question-text,body[data-role=participant] .answer-bubble p{font-size:var(--chat-font)}
body[data-role=participant] #workspace>.toolbar{flex-wrap:nowrap;justify-content:space-between;gap:6px}
.chat-font-controls{display:flex;gap:2px;padding:3px;background:#e8eee4;border-radius:7px;margin-left:auto;flex:none}
.chat-font-controls button{font-size:11px;min-height:25px;min-width:34px;border:0;background:transparent;color:#7e9175;border-radius:5px;padding:4px 6px}
.chat-font-controls button[aria-pressed=true]{background:white;color:#285b40;box-shadow:0 1px 4px #244d3810;font-weight:800}
body[data-admin] #workspace>.room-head{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:6px 12px;padding:12px 16px}
body[data-admin] .workspace-heading{display:contents}body[data-admin] #back-rooms{grid-column:1;grid-row:1;justify-self:start;margin:0;align-self:center}
body[data-admin] .seminar-title-row{grid-column:1/-1;grid-row:2;align-items:center;gap:16px;grid-template-columns:minmax(0,1fr) 420px}
body[data-admin] #workspace>.room-head>.toolbar{grid-column:2;grid-row:1;margin:0;justify-content:flex-end}
body[data-admin] .seminar-title-row .seminar-access{padding:8px 10px;gap:5px 8px}body[data-admin] .seminar-title-row h1{font-size:22px}
@media(max-width:780px){body[data-admin] #workspace>.room-head{padding:10px;gap:9px}body[data-admin] .seminar-title-row{grid-template-columns:minmax(0,1fr)}body[data-admin] #workspace>.room-head>.toolbar{gap:4px}body[data-admin] #workspace>.room-head>.toolbar button{font-size:10px;min-height:26px;padding:4px 6px}body[data-admin] #connection{font-size:10px}}.unread-badge{display:inline-flex;align-items:center;justify-content:center;min-width:18px;height:18px;padding:0 5px;background:#c56348;color:#fff;border-radius:20px;font-size:10px;font-weight:800;margin-left:5px}.has-unread{box-shadow:0 0 0 2px #d7a44570}.arrival-pulse{animation:arrival 700ms ease-in-out 3}.question-history>summary.has-unread{background:#fff0cf;color:#7b5d22}
.live-event-alert{position:fixed;top:12px;left:50%;transform:translateX(-50%);z-index:100;display:flex;align-items:center;gap:10px;padding:12px 15px;max-width:calc(100vw - 20px);background:#fff8e6;border:1px solid #e6cb86;border-radius:12px;box-shadow:0 8px 30px #172e2526;color:#725720;font-size:13px}.live-event-alert>span{min-width:0}.live-event-alert button{min-height:28px;font-size:11px;padding:5px 8px;white-space:nowrap;background:#fff;border-color:#e6d6a8}.sound-option{display:flex;align-items:center;gap:4px;font-size:10px;color:#7c8f7a;padding:4px 6px}.sound-option input{width:14px;height:14px}.claim-label{font-size:11px!important;background:#e9f1ff;border-radius:6px;padding:5px 8px;color:#4e6c92!important}
@keyframes arrival{0%,100%{filter:brightness(1);transform:translateY(0)}50%{filter:brightness(1.15);transform:translateY(-2px);box-shadow:0 0 0 4px #e5b95765}}
@media(prefers-reduced-motion:reduce){.arrival-pulse{animation:none}}
@media(max-width:430px){.live-event-alert{font-size:11px;padding:9px;gap:5px}.live-event-alert button{font-size:10px;padding:4px 6px}}/* Public entrance: clearly tied to a scheduled seminar, never a fake live status. */
.entry{max-width:1120px;grid-template-columns:minmax(0,1.25fr) minmax(330px,1fr);gap:64px;margin:50px auto 30px}.entry-intro h1{font-size:clamp(30px,3.3vw,44px);line-height:1.35;letter-spacing:-.055em;margin:14px 0 20px}.entry-intro h1 span{color:#24634f}.entry-intro .eyebrow{display:inline-block;padding:7px 11px;border-radius:6px;background:#e8f0e6;color:#5e8059;font-size:12px;letter-spacing:.025em}.entry-intro .lead{font-size:16px;line-height:1.9;color:#71816f}.entry-availability{margin:24px 0 26px;padding:17px 19px;background:#edf4e8;border-left:3px solid #729667;border-radius:0 10px 10px 0}.entry-availability strong{font-size:15px;color:#3f6b39}.entry-availability p{font-size:13px;margin:6px 0 0;color:#7a9070}.entry-flow{list-style:none;padding:0;margin:0 0 30px;display:flex;gap:22px;flex-wrap:wrap}.entry-flow li{font-size:12px;font-weight:650;color:#6f8168;display:flex;align-items:center;gap:7px}.entry-flow span{font-size:10px;color:#9baf90;background:#eff3ea;border-radius:50%;padding:6px}.entry-staff-link{font-size:12px;color:#86967e;text-decoration:none}.entry-staff-link:hover{color:#24634f;text-decoration:underline}
#join{padding:28px;border:0;border-radius:18px;box-shadow:0 10px 40px #244d380b;gap:14px}#join>.eyebrow{font-size:11px;letter-spacing:.03em;margin:0;color:#8aa07c}#join h2{font-size:21px;letter-spacing:-.045em;margin:0}#join>p{margin:0}#join label{font-size:12px;color:#5e7755;gap:6px}#join input{padding:12px 13px;background:#f8faf6;border:1px solid #e2e9dc;border-radius:9px}#join input[name=code]{font-size:18px;letter-spacing:.06em;font-weight:700}#join input[name=code]::placeholder{font-size:14px;letter-spacing:0;font-weight:400;color:#a3af9b}#join>button{margin-top:4px;border-radius:9px;min-height:46px}.entry-schedule-note{font-size:12px;line-height:1.75;color:#819476;text-align:center;background:#f6f9f2;border-radius:8px;padding:12px;margin-top:2px!important}.entry-privacy{font-size:10px;color:#a1ad97;text-align:center;line-height:1.6}
@media(max-width:780px){.entry{grid-template-columns:minmax(0,1fr);gap:24px;margin:16px auto 24px}.entry-intro h1{font-size:31px;line-height:1.4}.entry-intro .lead{font-size:14px}.entry-intro .lead br{display:none}.entry-availability{margin:20px 0;padding:14px}.entry-availability strong{font-size:13px}.entry-flow{gap:13px;margin-bottom:20px}.entry-flow li{font-size:11px;gap:5px}.entry-flow span{padding:5px}#join{padding:22px}#join h2{font-size:20px}}