:root{--paper:#f4f3ed;--ink:#182d34;--muted:#68777b;--green:#287d68;--green-dark:#1d6453;--line:#dce2de;--radius:20px;font-family:Manrope,'Segoe UI',Arial,sans-serif;font-size:15px;color:var(--ink);background:var(--paper);font-synthesis:none}
*{box-sizing:border-box}body{margin:0;min-width:320px}button,input,textarea,select{font:inherit}button{cursor:pointer;border:0;color:inherit}button:disabled{opacity:.45;cursor:default}button,a,input,textarea,select,summary{outline-offset:4px}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid var(--green)}a{color:var(--green)}svg{display:block}.icon{width:20px;height:20px;flex-shrink:0}.app-shell{min-height:100vh}
.academy-header{padding:18px max(32px,calc((100vw - 1376px)/2));display:flex;align-items:center;gap:28px;background:#fff;border-bottom:1px solid var(--line);min-height:84px}.brand{display:flex;align-items:center;gap:12px;color:var(--ink);text-decoration:none;flex-shrink:0}.brand-mark{width:42px;height:42px;padding:10px;border-radius:12px;background:var(--ink);display:grid;grid-template-columns:repeat(2,1fr);gap:4px}.brand-mark i{border-radius:50%;background:#f2ead7}.brand-mark i:nth-child(2),.brand-mark i:nth-child(3){background:#87b5a2}.brand-name{font-size:18px;font-weight:800;letter-spacing:-.6px;line-height:1.08}.brand-name small{display:block;font-size:10px;letter-spacing:2.5px;color:var(--green);margin-top:5px}.header-nav{display:flex;align-items:center;gap:4px;margin-left:auto}.header-nav button{display:flex;align-items:center;gap:8px;min-height:44px;padding:0 14px;border-radius:10px;background:transparent;color:#657377;font-size:14px;font-weight:650;white-space:nowrap}.header-nav button .icon{width:18px;height:18px}.header-nav button:hover{background:#f3f5f1}.header-nav button.active{background:#e6f1eb;color:var(--green-dark)}.header-right{display:flex;align-items:center;gap:15px;border-left:1px solid var(--line);padding-left:20px}.profile-avatar{width:40px;height:40px;border-radius:50%;background:#e6ebe6;display:grid;place-items:center;font-size:12px;font-weight:750}.study-streak,.header-right .streak{display:flex;align-items:center;gap:6px;font-size:12px;color:#775b43;white-space:nowrap}.study-streak .icon{color:#db825b;width:18px;height:18px}.mobile-menu{display:none}
.main{max-width:1440px;width:100%;margin:auto;padding:32px}.workspace-breadcrumb{display:flex;align-items:center;gap:8px;margin-bottom:22px;font-size:12px;color:#84918a}.workspace-breadcrumb .icon{width:13px;height:13px}.workspace-status{font-size:12px;color:#738574}.page-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:25px}.eyebrow{font-size:11px;font-weight:750;letter-spacing:1.7px;color:var(--green);margin-bottom:10px}.page-heading h1{font-size:36px;line-height:1.2;letter-spacing:-1.4px;margin:0;font-weight:700}.page-heading p{font-size:15px;line-height:1.6;color:var(--muted);margin:10px 0 0;max-width:660px}.heading-meta{display:flex;gap:10px}.meta-chip{display:flex;align-items:center;gap:7px;padding:9px 13px;border:1px solid #dce2d9;border-radius:30px;color:#647576;background:#fafaf6;font-size:12px}.meta-chip .icon{width:16px;height:16px}.course-bar{display:flex;align-items:center;gap:24px;padding:17px 22px;margin-bottom:22px;background:#eaece3;border:1px solid #dce1d4;border-radius:14px}.course-title{display:flex;align-items:center;gap:12px}.course-book-icon{color:var(--green)}.course-title strong{display:block;font-size:14px}.course-title small{display:block;color:#738072;font-size:12px;margin-top:4px}.course-progress{display:flex;align-items:center;gap:12px;margin-left:auto;min-width:180px;font-size:12px;color:#687760}.course-progress .progress-line{width:130px;margin:0}.chapter-switch{max-width:260px;height:44px;padding:0 13px;border:1px solid #cbd5c8;border-radius:8px;background:#f9fbf6;font-size:14px;font-weight:650}
.card,.board-card,.lesson-panel{background:white;border:1px solid var(--line);border-radius:20px;box-shadow:0 8px 24px #182d3407,0 1px 3px #182d3407}.lesson-workspace,.study-grid{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:22px;align-items:start}.board-card{overflow:hidden;min-width:0}.board-card-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:23px 25px 18px}.exercise-kicker{display:flex;align-items:center;gap:8px;font-size:11px;font-weight:750;letter-spacing:1px;color:#71817c;margin-bottom:8px}.chapter-tag{padding:4px 6px;background:#e6f1eb;color:var(--green);border-radius:5px;font-size:10px}.position-title{font-size:24px;line-height:1.3;letter-spacing:-.6px;font-weight:700;margin:0}.position-meta,.position-question{font-size:14px;line-height:1.6;color:#6b7d75;margin:8px 0 0}.board-toolbar{display:flex;gap:7px;align-items:center}.source-link{display:flex;align-items:center;justify-content:center;gap:6px;min-height:40px;padding:8px 10px;background:#f8f9f5;border:1px solid #e0e5e0;border-radius:8px;color:#687776;font-size:12px;white-space:nowrap}.source-link .icon{width:15px;height:15px}.lesson-brief{margin:0 25px 18px;padding:2px 0 2px 13px;border-left:3px solid #85b39a;color:#60776e;font-size:14px;line-height:1.65}.lesson-brief p{margin:0}.board-shell{padding:0 18px}.board-stage,.board-host{min-width:0}.board-wrap{padding:0;position:relative}.board-svg{width:100%;height:auto;overflow:visible;touch-action:none;user-select:none;border-radius:14px}.board-svg [data-point]{cursor:pointer;outline:none}.board-svg .is-disabled{cursor:default}.board-svg [data-point]:focus-visible .point-focus{stroke:#bfe6d1;stroke-width:3}.board-svg .is-source:hover .point-source-ring{opacity:1}.board-hud{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:0 8px 12px}.board-player{display:flex;align-items:center;gap:9px;min-width:0}.player-disc{width:25px;height:25px;border-radius:50%;flex-shrink:0}.player-disc.ivory{background:linear-gradient(135deg,#fff9e9,#d5c7af);border:1px solid #c7b79b;box-shadow:inset 0 0 0 4px #eee4d0}.player-disc.dark{background:linear-gradient(135deg,#38515b,#15232a);border:1px solid #0f222a;box-shadow:inset 0 0 0 4px #263c46}.board-player-info strong{display:block;font-size:13px}.board-player-info small{display:block;font-size:12px;color:#738181;margin-top:3px}.board-player.is-student strong{color:var(--green-dark)}.board-pip{display:flex;align-items:baseline;gap:4px;margin-left:9px;padding-left:10px;border-left:1px solid var(--line)}.board-pip strong{font-size:20px;font-weight:700}.board-pip small{font-size:11px;color:#7a8787}.board-turn-tray{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:13px 8px 8px}.board-turn-label strong{display:block;font-size:13px}.board-turn-label small{display:block;font-size:12px;color:var(--muted);margin-top:4px}.board-dice,.dice-tray{display:flex;align-items:center;gap:8px}.board-die,.die-button{min-width:44px;width:44px;height:44px;border:1px solid #cbd5cc;border-radius:10px;background:white;box-shadow:0 2px 2px #182d3409;display:grid;place-items:center}.board-die svg{width:30px;height:30px}.board-die:hover{background:#edf4ef}.board-die.is-chosen,.die-button.active{border:2px solid var(--green);background:#e6f1eb}.board-die.is-used,.die-button.used{opacity:.3;box-shadow:none}.board-legend{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:9px 8px 16px;font-size:11px;color:#74817f;line-height:1.5}.board-legend>span{display:flex;align-items:center;gap:6px}.legend-target,.legend-source{display:inline-block;width:9px;height:9px;border:2px solid #d2ad5f;border-radius:50%;flex-shrink:0}.legend-source{border-color:#74b394;background:#e7f2e8}.board-direction{margin-left:auto}.board-direction .icon{width:13px;height:13px}
.board-controls{display:flex;align-items:center;gap:15px;padding:16px 25px;border-top:1px solid #e8ece6;background:#fcfcf9}.move-tray,.moves{display:flex;flex-wrap:wrap;align-items:center;gap:6px;flex:1;min-width:0;min-height:31px}.move-label{font-size:11px;font-weight:750;color:#7c8b84;letter-spacing:.8px;white-space:nowrap}.move-chip{padding:7px 10px;border:1px solid #d3e4d8;border-radius:7px;background:#eaf3eb;font-size:14px;font-weight:700;color:#356b53}.move-empty{font-size:13px;color:#8b9894}.board-action-bar{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:0 25px 21px;background:#fcfcf9}.move-status{font-size:13px;line-height:1.5;color:#6f817c}.move-status.ready{color:var(--green-dark)}.status-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:#9faf9c;margin-right:6px}.ready .status-dot{background:var(--green)}.control-buttons,.action-buttons{display:flex;align-items:center;gap:8px}.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:11px 17px;border:1px solid transparent;border-radius:9px;font-size:14px;line-height:1.45;font-weight:700;text-decoration:none}.button .icon{width:18px;height:18px}.primary{background:var(--green);color:white;box-shadow:0 3px 5px #287d6818}.primary:hover{background:var(--green-dark)}.secondary{background:white;color:#4e6967;border-color:#cfdad2}.secondary:hover{background:#f2f7f0}.ghost{background:transparent;color:#647771}.ghost:hover{background:#eff3ec}.icon-button{min-width:40px;width:40px;height:40px;display:grid;place-items:center;border:1px solid #d9e2da;border-radius:8px;color:#5e7771;background:white}.icon-button .icon{width:18px;height:18px}.text-button{display:inline-flex;align-items:center;gap:7px;min-height:40px;padding:6px 0;background:transparent;color:var(--green-dark);font-size:13px;font-weight:650}.text-button .icon{width:16px;height:16px}.destination-choices{display:flex;flex-wrap:wrap;gap:7px;padding:0 25px 15px}.destination-button{min-height:44px;padding:10px 13px;background:#edf5ec;color:#3a7658;border:1px solid #c5dfcd;border-radius:8px;font-size:13px;font-weight:700}.board-comparison{display:flex;gap:5px;padding:8px;background:#f4f5ef;border-bottom:1px solid #e0e6da}.board-comparison button{flex:1;min-height:42px;background:transparent;color:#7a8875;font-size:13px;border-radius:8px}.board-comparison button.active{background:white;color:var(--green-dark);box-shadow:0 1px 4px #182d3410}
.lesson-panel{overflow:hidden}.panel-tabs{display:flex;border-bottom:1px solid #e2e7e0;background:#fbfcf8;padding:7px 12px 0;gap:2px}.panel-tab{min-height:46px;flex:1;position:relative;padding:8px 10px 14px;background:transparent;color:#7d8980;font-size:13px;font-weight:700}.panel-tab.active{color:var(--green-dark)}.panel-tab.active:after{content:'';position:absolute;height:3px;border-radius:3px 3px 0 0;background:var(--green);inset:auto 8px -1px}.panel-content{padding:25px}.concept-title{font-size:24px;font-weight:700;line-height:1.25;letter-spacing:-.6px;margin:0 0 13px}.concept-summary{color:#657972;font-size:15px;line-height:1.8;margin:0}.key-ideas{display:grid;gap:11px;padding:18px 0;margin:20px 0 0;border-top:1px solid #e1e7dc}.key-idea{display:flex;align-items:flex-start;gap:10px;color:#60746b;font-size:14px;line-height:1.65}.key-idea .icon{color:var(--green);width:17px;height:17px;margin-top:3px}.key-idea p{margin:0}.themes{display:flex;flex-wrap:wrap;gap:6px;margin:17px 0 0}.theme{border:1px solid #d8e4d7;border-radius:20px;background:#f6f9f1;padding:5px 9px;color:#6b7d60;font-size:11px;font-weight:650}.strategy-card,.hint-card{margin-top:20px;padding:16px 17px;background:#e9f2e8;border:1px solid #d7e5d2;border-radius:12px;font-size:14px;line-height:1.7;color:#5f7960}.strategy-card h4,.hint-card h4{font-size:14px;margin:0 0 8px;color:#3a654c}.strategy-card p,.hint-card p{margin:0}.hint-card{background:#fcf5e9;border-color:#ecdbc3;color:#957647}.source-note{display:flex;gap:7px;align-items:flex-start;margin-top:22px;padding-top:17px;border-top:1px solid #e6eae3;color:#879486;font-size:11px;line-height:1.7}.source-note .icon{width:14px;height:14px}.panel-actions{display:grid;gap:9px;margin-top:22px}.panel-actions .button{width:100%}.daily-goal{display:flex;align-items:center;gap:9px;border-top:1px solid #e2e8de;margin-top:20px;padding-top:17px;color:#88957d;font-size:12px}.daily-goal-icon{color:#91aa77}.feedback{padding:22px 25px;border-top:1px solid #d5e7d3;background:#f0f7e9}.feedback.incorrect{background:#fcf1e9;border-color:#edd8c6}.feedback-title{display:flex;align-items:center;gap:9px;font-size:20px;font-weight:750;line-height:1.45;color:#396648}.feedback p,.feedback-details{color:#657d56;font-size:14px;line-height:1.8;margin:12px 0}.feedback.incorrect .feedback-title{color:#9a613d}.feedback.incorrect p{color:#947354}.feedback-actions{display:flex;flex-wrap:wrap;gap:9px;margin-top:17px}.feedback details{font-size:14px;line-height:1.8;margin-top:14px}.feedback summary{cursor:pointer;font-weight:700}.rubric{display:grid;gap:8px;font-size:13px;margin:14px 0}.rubric span{display:flex;align-items:center;gap:7px}.rubric .icon{width:15px;height:15px}.recommendation{font-size:19px;font-weight:750;color:var(--green-dark)}.feedback-score{font-size:12px;font-weight:700}.alternative{margin-top:12px;font-size:14px;line-height:1.7}
.modal-backdrop{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;padding:25px;background:#10272f9c;backdrop-filter:blur(5px)}.modal{width:630px;max-width:100%;max-height:90vh;overflow:auto;padding:30px;border-radius:23px;background:#fffef9;box-shadow:0 24px 90px #09222940}.modal-top{display:flex;align-items:center;justify-content:space-between;gap:15px}.modal h2{margin:0;font-size:25px;font-weight:700;letter-spacing:-.7px;line-height:1.35}.modal p{color:#7b906a;font-size:14px;line-height:1.85}.modal img{max-width:100%;border:1px solid #dce5d5;border-radius:10px}.modal label{display:block;margin:17px 0 7px;font-size:14px;font-weight:650}.modal input,.modal textarea{width:100%;min-height:44px;padding:11px 13px;border:1px solid #d8e3d0;border-radius:8px;background:white;font-size:14px}.modal textarea{min-height:165px;font-family:Consolas,monospace;font-size:12px}.modal .button{margin-top:15px}.modal-list{padding-left:20px;font-size:14px;line-height:1.9}.source-preview{width:100%;height:auto}.footer-note{margin:32px 0 0;text-align:center;color:#9aa68e;font-size:11px}#toast{position:fixed;left:50%;bottom:25px;z-index:200;max-width:90vw;transform:translate(-50%,15px);padding:14px 21px;border-radius:11px;background:var(--ink);color:white;font-size:14px;opacity:0;pointer-events:none}#toast.show{opacity:1;transform:translate(-50%,0)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.focus-mode .lesson-workspace{grid-template-columns:minmax(0,1fr)}.focus-mode .lesson-panel{display:none}.focus-mode .board-card{max-width:1100px;margin:auto;width:100%}
@media(max-width:1250px){.academy-header{gap:18px;padding:18px 26px}.header-nav button{padding:0 11px;font-size:13px}.header-right{padding-left:15px}.study-streak{display:none}.main{padding:28px 26px}.lesson-workspace,.study-grid{grid-template-columns:minmax(0,1fr) 320px;gap:18px}.panel-content{padding:22px}.heading-meta{display:none}.course-progress{min-width:150px}.course-progress .progress-line{width:100px}}
@media(max-width:900px){.academy-header{flex-wrap:wrap;justify-content:space-between;gap:14px;padding:16px 22px}.header-nav{order:3;flex-basis:100%;justify-content:center;overflow-x:auto;margin:0;gap:7px}.header-nav button{font-size:14px;padding:0 14px}.header-right{border:0}.main{padding:25px 22px}.lesson-workspace,.study-grid{grid-template-columns:minmax(0,1fr);gap:20px}.panel-content{padding:24px}.panel-actions{display:flex}.panel-actions .button{width:auto;flex:1}.course-progress{display:none}.course-bar{gap:18px}.course-title{min-width:0}}
@media(max-width:760px){.academy-header{min-height:70px;padding:15px 20px;flex-wrap:nowrap}.header-nav{position:fixed;inset:auto 0 0;z-index:50;margin:0;padding:7px 10px calc(7px + env(safe-area-inset-bottom));display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:2px;background:#fffffff5;backdrop-filter:blur(12px);border-top:1px solid #d9e3da;box-shadow:0 -4px 20px #182d3408;overflow:visible}.header-nav button{min-width:0;min-height:51px;padding:5px 2px;display:flex;flex-direction:column;justify-content:center;gap:4px;font-size:10px;line-height:1.3}.header-nav button .icon{width:19px;height:19px}.header-right{padding-left:0}.header-right .icon-button{display:none}.profile-avatar{width:34px;height:34px;font-size:10px}.main{padding:25px 18px 105px}.page-heading h1{font-size:28px;letter-spacing:-1px}.page-heading p{font-size:14px}.course-bar{padding:14px 16px;gap:14px}.course-title strong{font-size:13px}.course-title small{font-size:11px}.course-book-icon{display:none}.chapter-switch{max-width:180px;min-width:0;font-size:12px}.board-card{border-radius:17px}.board-card-header{padding:20px 18px 16px;gap:10px}.position-title{font-size:21px}.position-meta{font-size:12px}.lesson-brief{margin:0 18px 17px}.board-shell{padding:0 10px}.board-toolbar .icon-button{display:none}.source-link{font-size:10px;max-width:100px;white-space:normal}.board-hud{padding:0 6px 10px;gap:10px}.board-player{gap:7px}.board-player-info strong{font-size:12px}.board-player-info small{font-size:11px}.player-disc{width:22px;height:22px}.board-pip{padding-left:7px;margin-left:5px}.board-pip strong{font-size:17px}.board-pip small{font-size:10px}.board-turn-tray{padding:11px 6px 6px}.board-turn-label strong{font-size:12px}.board-turn-label small{font-size:11px}.board-dice{gap:6px}.board-legend{padding:8px 6px 14px;gap:8px;font-size:10px}.board-controls{padding:14px 18px;gap:10px}.move-label{font-size:10px}.move-empty{font-size:12px}.move-chip{font-size:13px;padding:6px 8px}.board-action-bar{padding:0 18px 18px;gap:12px}.board-action-bar .button{font-size:13px;padding:10px 13px}.move-status{font-size:12px}.icon-button{min-width:38px;width:38px;height:38px}.destination-choices{padding-left:18px;padding-right:18px}.panel-content{padding:23px}.modal-backdrop{padding:15px}.modal{padding:24px;border-radius:19px;max-height:86vh}.modal h2{font-size:22px}.feedback{padding:19px 18px}#toast{bottom:85px;font-size:13px}}
@media(max-width:420px){.academy-header{padding-left:16px;padding-right:16px}.main{padding:23px 12px 105px}.brand-name{font-size:16px}.page-heading{padding:0 5px}.course-bar{padding:12px 13px;gap:10px}.course-title small{max-width:125px;line-height:1.5}.course-title strong{font-size:12px}.chapter-switch{max-width:156px;font-size:11px}.exercise-kicker{font-size:10px}.board-card-header{padding-left:15px;padding-right:15px}.board-shell{padding:0 8px}.board-hud{padding-left:5px;padding-right:5px}.board-pip{margin-left:3px;padding-left:6px}.board-turn-label small{max-width:135px}.board-dice{gap:4px}.board-legend{flex-wrap:wrap}.board-direction{display:none}.board-controls{padding-left:15px;padding-right:15px}.board-action-bar{padding-left:15px;padding-right:15px}.board-action-bar .move-status{max-width:115px}.position-title{font-size:20px}}
/* Structure shared by lessons, practice and the game. */
.brand-name>span{display:block;font-size:10px;letter-spacing:2.5px;color:var(--green);margin-top:5px}.workspace-breadcrumb .workspace-status{margin-left:auto;display:flex;align-items:center;gap:6px}.page-heading h1 em{font-family:Georgia,serif;font-weight:400;color:var(--green)}.chapter-switch{display:block;padding:0;border:0;background:none}.chapter-switch select{width:100%;height:44px;padding:0 12px;border:1px solid #cbd5c8;border-radius:8px;background:#f9fbf6;font-size:14px;color:var(--ink)}.exercise-kicker>span+span:before{content:'·';margin-right:8px;color:#a0aaa1}.lesson-brief>span{display:flex;align-items:center;gap:6px;font-size:10px;font-weight:750;letter-spacing:1px;color:#739681;margin-bottom:6px}.lesson-brief>span .icon{width:14px;height:14px}.board-host{padding:0 18px}.board-controls{display:block}.move-tray{width:100%;min-height:40px}.board-action-bar{padding:0;margin-top:17px;background:none}.move-status{display:flex;align-items:flex-start;gap:5px;max-width:330px}.move-status .status-dot{margin-top:7px;flex-shrink:0}.destination-choices{padding:14px 0 0;align-items:center}.destination-choices>span{font-size:10px;font-weight:750;color:#8b9d81;letter-spacing:.8px}.destination-button{display:flex;align-items:center;gap:8px}.destination-button small{font-size:10px;color:#8aaa7e}.destination-button .icon{width:14px;height:14px}.hint-card{display:flex;align-items:flex-start;gap:9px}.hint-card .icon{margin-top:3px;width:17px;height:17px}.board-comparison{align-items:center}.board-comparison>span{font-size:12px;color:#819573;white-space:nowrap;padding:0 9px}.key-idea>span{font-size:11px;font-weight:750;color:#7b9b69;flex-shrink:0;line-height:1.9}.strategy-card>span{display:flex;align-items:center;gap:7px;font-size:10px;font-weight:750;letter-spacing:1px;color:#648a52;margin-bottom:8px}.strategy-card>span .icon{width:14px;height:14px}.panel-tab .icon{display:inline-block;width:14px;height:14px;vertical-align:-2px;margin-left:4px}.panel-content>.coach-question{margin-top:21px}.panel-content>.coach-question .icon{width:17px;height:17px}.panel-actions{padding:0 25px 22px;margin-top:0}.panel-actions .source-note{margin-top:7px;padding-top:17px}.source-note small{display:block;margin-top:3px;font-size:10px;color:#99a18e}.daily-goal{padding:18px 25px;margin:0;background:#fafbf6;font-size:12px}.daily-goal strong{display:block;font-size:12px;color:#657c52}.daily-goal span{display:block;font-size:11px;color:#95a685;margin-top:4px}.daily-goal-icon{width:30px;height:30px;display:grid;place-items:center;border:2px solid #dbe6cf;border-radius:50%;flex-shrink:0}.daily-goal-icon .icon{width:15px;height:15px}.feedback-title .feedback-icon{width:32px;height:32px;border-radius:50%;background:#dbeecf;display:grid;place-items:center;flex-shrink:0}.feedback.incorrect .feedback-icon{background:#f7dcc5}.feedback-icon .icon{width:18px;height:18px}.feedback-score{margin-left:auto;padding:5px 8px;border-radius:6px;background:#e1eed5;color:#739754;white-space:nowrap}.feedback.incorrect .feedback-score{color:#b48c5c;background:#f8e3d1}.source-preview{padding:0;background:transparent;border:0;margin:17px 0}.source-preview img{width:100%;height:auto;border:1px solid #dee7d5;border-radius:9px}.source-preview>span{display:flex;justify-content:space-between;align-items:center;color:#7d9667;font-size:12px;margin-top:9px}.coach-mini{padding:23px}.coach-mini-form .button{padding:10px}.footer-note{display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:10px;border-top:1px solid #e0e5da;padding-top:24px}.footer-note>span:first-child{font-size:9px;letter-spacing:1.3px;font-weight:750}.footer-note .text-button{font-size:11px;min-height:28px}
.section-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:28px 0 16px}.section-heading h2{font-size:20px;line-height:1.35;letter-spacing:-.5px;margin:0}.section-heading p{font-size:13px;color:var(--muted);margin:5px 0 0}.section-heading>span{color:#78857a;font-size:12px}.path-section{margin-top:28px}.module-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}.module-card{padding:18px;min-width:0;background:#fff;border:1px solid #dbe2da;border-radius:13px;text-align:left}.module-card:hover{background:#fbfcf7;border-color:#9fbba9}.module-card.current{border-color:#8db49f;background:#f0f6ec;box-shadow:inset 0 3px 0 #4a9476}.module-card.completed{background:#f8fbf5}.module-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}.module-number{font-size:10px;font-weight:750;letter-spacing:.5px;color:#809077}.module-symbol{width:31px;height:31px;display:grid;place-items:center;background:#edf2e8;color:#718c63;border-radius:9px}.module-symbol .icon{width:17px;height:17px}.module-title,.module-card h3{font-size:14px;line-height:1.45;margin:0 0 7px;font-weight:700}.module-card p{font-size:12px;line-height:1.7;color:#7e8a78;margin:0 0 15px}.module-footer{display:flex;align-items:center;justify-content:space-between;gap:7px;flex-wrap:wrap;color:#8a9684;font-size:10px;line-height:1.5}.module-status{padding:4px 7px;background:#edf3e7;border-radius:20px;color:#6d8657;font-size:10px;white-space:nowrap}.module-footer .arrow{margin-left:auto;color:#749367}.module-footer .arrow .icon{width:16px;height:16px}.chapter-mini{display:flex;align-items:center;justify-content:space-between;gap:8px;padding-top:12px;font-size:11px;color:#87947e}
.practice-setup{padding:30px}.practice-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.practice-option{position:relative;padding:22px;border:1px solid #dfe6da;border-radius:13px;background:#fafbf6;text-align:left}.practice-option:hover{background:#f4f8ee;border-color:#abc3a2}.practice-option.selected{border:2px solid #7ca269;background:#edf5e5;padding:21px}.practice-option.selected:after{content:'✓';position:absolute;top:18px;right:17px;width:22px;height:22px;display:grid;place-items:center;border-radius:50%;font-size:12px;font-weight:800;background:#6e955b;color:white}.practice-option h3{font-size:16px;margin:0 27px 10px 0}.practice-option p{font-size:14px;line-height:1.75;color:#7b8c70;margin:0}.setup-footer{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-top:26px}.setup-footer label{display:flex;align-items:center;gap:10px}.setup-footer select{min-height:44px;padding:9px 12px;border:1px solid #d4e0cd;border-radius:8px;background:white;font-size:14px;color:#5f7850}.session-bar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 22px;margin-bottom:20px;background:#fff;border:1px solid var(--line);border-radius:13px}.session-bar .eyebrow{display:block;font-size:9px;margin-bottom:5px}.session-bar strong{font-size:14px}.session-progress{display:flex;align-items:center;gap:18px;color:#7a8c6e;font-size:12px}.session-dots{display:flex;gap:7px;flex-wrap:wrap;justify-content:center}.session-dots i{width:8px;height:8px;border-radius:50%;background:#e0e8d8}.session-dots i.done{background:#80a768}.session-dots i.active{background:#c7ddac;box-shadow:0 0 0 3px #e7f0de}.disclosure{font-size:12px;color:#8f9f82;line-height:1.8;margin-top:20px}
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:17px;margin-bottom:24px}.stat{padding:24px}.stat-label{font-size:14px;color:#7c8c73;font-weight:600}.stat-value{display:block;font-size:38px;font-weight:700;letter-spacing:-1.3px;margin:13px 0 10px}.stat-caption,.stat small{font-size:12px;color:#8b9d78;line-height:1.6}.progress-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:22px}.chart-card{padding:26px}.chart-card h3{font-size:18px;margin:0 0 23px}.chapter-stat{margin:21px 0}.chapter-stat>div:first-child{display:flex;justify-content:space-between;gap:15px;font-size:14px;font-weight:600}.progress-line{height:6px;overflow:hidden;border-radius:8px;background:#e5ecde;margin:10px 0 8px}.progress-line span{display:block;height:100%;background:#78a05f;border-radius:inherit}.chapter-stat .progress-line{height:8px}.chapter-stat small{font-size:11px;color:#899d76}.history-item{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:15px 0;border-bottom:1px solid #e6eddf;color:#667d54;font-size:14px;line-height:1.5}.history-item small{display:block;font-size:12px;color:#8c9f7a;margin-top:5px}.result-pill{padding:6px 9px;border-radius:7px;background:#edf5e1;color:#749756;font-size:11px;font-weight:700;white-space:nowrap}.result-pill.miss{background:#fbefdc;color:#b3915d}.empty-state{padding:40px 30px;text-align:center;font-size:14px;line-height:1.8;color:#81946e}.empty-state .icon{width:35px;height:35px;margin:0 auto 16px;color:#8dad6c}
.library-book{display:flex;align-items:center;gap:30px;padding:28px;margin-bottom:24px}.book-cover{width:116px;height:157px;flex-shrink:0;display:flex;flex-direction:column;justify-content:space-between;padding:21px 17px;background:#173f3b;color:#ebe9cc;border-radius:3px 9px 9px 3px;box-shadow:inset 5px 0 0 #102f2d,4px 5px 0 #e0e5d7}.book-cover b{font-family:Georgia,serif;font-size:19px;font-weight:400;line-height:1.2}.book-cover small{font-size:8px;line-height:1.8;letter-spacing:.8px}.library-book h2{font-size:26px;letter-spacing:-.7px;margin:0 0 10px}.library-book p{font-size:14px;line-height:1.8;color:#7a8c6d;max-width:720px;margin:0 0 15px}.source-label{display:flex;align-items:center;gap:8px;color:#718c5c;font-size:12px;font-weight:600}.source-label .icon{width:16px;height:16px}.library-chapter{display:flex;align-items:center;gap:16px;width:100%;padding:19px 22px;border-bottom:1px solid #e0e8d9;background:transparent;text-align:left}.library-chapter:hover{background:#f9fcf3}.library-chapter .number{width:38px;height:38px;display:grid;place-items:center;background:#eff5e4;border-radius:10px;color:#82a06a;font-size:12px;font-weight:700}.library-chapter h3{font-size:15px;margin:0 0 6px}.library-chapter p{font-size:12px;color:#8fa47a;margin:0}.library-chapter .icon{margin-left:auto;width:18px;height:18px;color:#86a16e}.import-card{padding:27px;margin-top:24px}.import-card h3{font-size:18px;margin:0 0 10px}.import-card p{font-size:14px;line-height:1.8;color:#7b906e}.import-drop{display:block;cursor:pointer;padding:27px;border:1px dashed #b7cba7;border-radius:12px;background:#f8fcf2;text-align:center}.import-drop .icon{width:26px;height:26px;margin:0 auto 12px;color:#8fae70}.import-drop strong{font-size:15px;color:#607e4c}.import-drop small{display:block;margin-top:7px;font-size:12px;color:#92a67c}.import-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:19px}
.coach-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:22px}.chat-card{min-height:570px;display:flex;flex-direction:column;overflow:hidden}.chat-header{padding:23px 25px;border-bottom:1px solid #e0e8d9}.coach-heading{display:flex;align-items:center;gap:9px}.coach-avatar{width:33px;height:33px;flex-shrink:0;display:grid;place-items:center;background:#e5f0e6;color:var(--green);border-radius:10px}.coach-heading h3{font-size:14px;margin:0}.coach-heading small{display:block;color:#889688;font-size:11px;margin-top:3px}.chat-header p{font-size:14px;line-height:1.8;color:#809671;margin:10px 0 0}.chat-messages{display:flex;flex-direction:column;gap:16px;flex:1;max-height:510px;overflow:auto;padding:25px}.chat-message{align-self:flex-start;max-width:90%;padding:17px 19px;background:#eff5e6;border-radius:13px 13px 13px 3px;color:#607d4c;font-size:14px;line-height:1.8;white-space:pre-line}.chat-message.user{align-self:flex-end;color:white;background:var(--green-dark);border-radius:13px 13px 3px 13px}.chat-form{display:flex;gap:10px;padding:19px 23px;border-top:1px solid #e3eade}.chat-form input{flex:1;min-width:0;min-height:46px;border:1px solid #d7e4cd;border-radius:9px;padding:11px 14px;color:#5a7846;font-size:14px}.coach-context{padding:23px}.coach-context h3{font-size:16px;margin:0 0 16px}.coach-context p{font-size:14px;line-height:1.8;color:#829874}.coach-context select{width:100%;min-height:44px;padding:10px;border:1px solid #d8e4ce;border-radius:8px;background:white;font-size:14px;color:#6b8756}.coach-question{display:flex;align-items:center;justify-content:space-between;gap:8px;min-height:44px;width:100%;padding:10px 12px;margin-top:7px;border:1px solid #dde6d8;border-radius:9px;background:#f7faf3;text-align:left;color:#637957;font-size:13px;font-weight:600;line-height:1.5}.coach-question .icon{width:15px;height:15px}.coach-question:hover{background:#edf5e8}.coach-mini-messages{display:flex;flex-direction:column;gap:10px;max-height:310px;overflow:auto;margin:16px 0}.coach-mini-messages .chat-message{max-width:100%;padding:13px}.coach-mini-form{display:flex;gap:7px;margin-top:15px}.coach-mini-form input{min-width:0;width:100%;min-height:44px;border:1px solid #d6e2cf;border-radius:8px;padding:10px;font-size:13px}.coach-mini-form button{min-width:44px;width:44px;height:44px;display:grid;place-items:center}.coach-mini .disclosure{font-size:11px;margin-top:15px}
.settings-row{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:18px 0;border-bottom:1px solid #e0e8d8;font-size:14px;line-height:1.6}.settings-row small{display:block;font-size:12px;color:#8ca078;margin-top:4px}.settings-api-note{font-size:12px;color:#91a17f;line-height:1.8}.danger{color:#b5734e;border-color:#eed8c8}.source-page{color:#849a70;font-size:11px;line-height:1.7}.large-result{font-size:54px;font-weight:700;letter-spacing:-2px;color:#557e3c;margin:20px 0 0}.game-status{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:16px 25px;border-bottom:1px solid #dfe8d5;background:#f7faef;color:#748f5f;font-size:14px;line-height:1.7}.game-log{max-height:250px;overflow:auto;font-size:12px;color:#80986d;line-height:1.9;margin-top:16px}.right-column{display:grid;gap:16px;align-content:start}.concept-card{padding:24px;border:1px solid #dae5cf;border-radius:19px;background:#edf4e4}.concept-card h3{font-size:24px;margin:0 0 13px}.concept-card p{font-size:14px;line-height:1.8;color:#7a916a}.concept-header{display:flex;justify-content:space-between;font-size:11px;font-weight:750;color:#7c9668;margin-bottom:16px}.lesson-top{display:flex;justify-content:space-between;gap:15px;padding:24px 25px 17px}.lesson-top h2{font-size:24px;margin:0}.chapter-line{display:flex;gap:8px;font-size:11px;color:#7b8e72;margin-bottom:9px}.lesson-question{display:flex;justify-content:space-between;gap:20px;padding:0 25px 18px;font-size:14px;color:#6b8060}.lesson-card{overflow:hidden}.lesson-card>.board-wrap{padding:0 18px}.lesson-actions{display:flex;justify-content:space-between;gap:15px;padding:0 25px 23px}.board-helper{padding:15px 25px;font-size:12px;color:#8a9e7a}.move-row{display:flex;align-items:center;gap:13px;padding:17px 25px}.empty-move{font-size:13px;color:#8b9894}
@media(max-width:1250px){.panel-actions{padding:0 22px 22px}.daily-goal{padding:18px 22px}.session-progress{gap:12px}}
@media(max-width:900px){.panel-actions{display:grid}.progress-grid{grid-template-columns:1fr}.coach-layout{grid-template-columns:minmax(0,1fr) 280px}.footer-note{font-size:10px}.session-progress{flex-direction:column;gap:9px}.module-grid{grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}}
@media(max-width:760px){.workspace-breadcrumb{font-size:10px;margin-bottom:17px}.workspace-status{display:none!important}.chapter-switch select{font-size:12px}.board-host{padding:0 10px}.board-controls{padding:14px 18px}.board-action-bar{margin-top:14px;padding:0}.move-status{max-width:250px}.panel-actions{padding:0 23px 21px}.daily-goal{padding:17px 23px}.board-comparison{flex-wrap:wrap}.board-comparison>span{flex-basis:100%;text-align:center;padding:3px}.destination-choices{padding:14px 0 0}.footer-note{justify-content:center;flex-wrap:wrap;gap:10px 22px}.footer-note>span:nth-child(2){flex-basis:100%}.section-heading{gap:12px;align-items:flex-start}.section-heading>span{font-size:11px;text-align:right}.practice-setup{padding:23px}.practice-options{grid-template-columns:1fr;gap:12px}.practice-option{padding:19px}.practice-option.selected{padding:18px}.setup-footer{flex-direction:column;align-items:stretch;gap:18px}.setup-footer label{justify-content:space-between}.session-bar{padding:15px 17px;gap:12px;flex-wrap:wrap}.session-dots{max-width:100px;gap:5px}.session-dots i{width:6px;height:6px}.session-bar .button{font-size:12px}.stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.stat{padding:20px;border-radius:15px}.stat-label{font-size:12px}.stat-value{font-size:33px}.chart-card{padding:22px}.library-book{padding:22px;gap:20px;align-items:flex-start}.book-cover{width:86px;height:127px;padding:17px 12px}.book-cover b{font-size:16px}.library-book h2{font-size:20px}.library-book p{font-size:13px}.import-card{padding:22px}.coach-layout{grid-template-columns:1fr}.chat-card{min-height:510px}.chat-header,.chat-messages{padding:22px}.chat-form{padding:17px}.chat-form .button{padding:10px 12px}.game-status{padding:14px 18px;font-size:13px}.right-column{grid-template-columns:1fr}.lesson-top{padding:20px 18px 15px}.lesson-top h2{font-size:21px}.lesson-question{padding:0 18px 15px}.move-row{padding:15px 18px}.lesson-actions{padding:0 18px 20px}}
@media(max-width:420px){.board-host{padding:0 8px}.board-controls{padding-left:15px;padding-right:15px}.board-action-bar .move-status{max-width:115px}.board-action-bar .action-buttons{gap:3px}.board-action-bar .button{font-size:12px;padding:10px 11px}.board-action-bar .button .icon{width:15px;height:15px}.module-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.module-card{padding:16px}.library-book{padding:20px;gap:17px}.library-book h2{font-size:18px}.library-book p{font-size:12px}.stat{padding:18px}.stat small{font-size:11px}}
.panel-tab{display:flex;align-items:center;justify-content:center;gap:6px}.panel-tab .icon{margin:0}.practice-option-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}.practice-option-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:18px;font-size:11px;color:#8b9f78}.practice-option-top .icon{color:#89a271}.practice-option-foot .icon{width:16px;height:16px}.board-surface{min-width:0}.panel-actions{display:grid}.panel-actions .source-note{margin-top:7px}.session-bar .eyebrow{margin-top:0}.hint-card .icon{flex-shrink:0}
@media(max-width:1050px){.lesson-workspace,.study-grid{grid-template-columns:minmax(0,1fr)}.lesson-panel{width:100%}.board-card{width:100%}.header-nav button{padding-left:10px;padding-right:10px;font-size:13px}.academy-header{gap:14px}.header-right{padding-left:12px}.brand-name{font-size:17px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;animation:none!important}}