.course-section{margin-top:30px}.course-section .section-heading{align-items:center}.course-subtitle{color:var(--muted);font-size:13px;margin:-5px 0 18px}.course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.course-card{background:white;border:1px solid var(--line);border-radius:17px;padding:23px;display:flex;flex-direction:column;min-width:0;position:relative}.course-card.available{border-color:#d8cdef}.course-card.available:hover{box-shadow:0 6px 26px #4c31910c;border-color:#bba5e5}.course-card-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:21px}.course-number{font-size:13px;color:var(--purple);font-weight:600}.course-card h3{font-size:18px;margin-bottom:10px;line-height:1.3}.course-card p{font-size:12px;color:var(--muted);line-height:1.6;flex:1}.course-card-bottom{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:22px;font-size:12px}.course-card-bottom small{color:var(--muted)}.course-card-bottom .btn{padding:6px 0;min-height:30px}.course-card.planned{background:#faf9f8}.planned-label{font-size:11px;color:#77717d}.course-optional{margin-top:20px;padding:20px 24px;border:1px solid var(--line);border-radius:15px;background:#ffffff85}.course-optional summary{cursor:pointer;font-weight:500}.optional-list{list-style:none;padding:8px 0 0;margin:0}.optional-list li{padding:11px 0;display:flex;justify-content:space-between;gap:15px;border-bottom:1px solid var(--line);font-size:13px}.optional-list li:last-child{border:0}.optional-list small{white-space:nowrap;color:var(--muted)}.home-hero.intro-hero .hero-copy h2{max-width:470px}.intro-hero .hero-art{min-height:320px}.intro-art-card{position:absolute;background:white;border:1px solid #e9e1f4;border-radius:17px;box-shadow:0 12px 40px #4b238115;padding:22px;width:210px;transform:rotate(-6deg);left:13%;top:16%}.intro-art-card small{color:var(--purple);font-size:10px;letter-spacing:1px}.intro-art-card strong{display:block;font-size:22px;line-height:1.25;margin-top:10px}.intro-art-dots{display:flex;gap:9px;flex-wrap:wrap;max-width:142px;margin-top:25px}.intro-art-dots i{width:17px;height:17px;border-radius:50%;background:#bda5ef}.intro-art-dots i:nth-child(3n){border-radius:4px;background:#87bda5}.intro-art-small{position:absolute;right:6%;bottom:15%;width:205px;background:#fff;border:1px solid #eee6fa;border-radius:13px;padding:19px;transform:rotate(7deg);box-shadow:0 12px 30px #6440bf12}.intro-art-small strong{display:block;font-size:15px;margin:10px 0 7px}.intro-art-small p{font-size:11px;color:var(--muted)}.intro-layout{display:grid;grid-template-columns:225px minmax(0,1fr);gap:24px;align-items:start}.intro-rail{position:sticky;top:24px;min-width:0}.intro-rail-heading{display:flex;justify-content:space-between;align-items:center;font-size:12px;margin-bottom:12px;padding:0 8px}.intro-rail-heading span{color:var(--muted);font-size:11px}.intro-rail ol{padding:0;margin:0;list-style:none;display:grid;gap:6px}.intro-step{width:100%;display:flex;align-items:center;gap:11px;text-align:left;background:transparent;color:var(--muted);border-radius:10px;padding:13px 10px;font-size:12px;line-height:1.4}.intro-step:hover{background:#eeebf3}.intro-step.active{background:var(--lavender);color:var(--navy);font-weight:500}.intro-step-number{display:grid;place-items:center;border:1px solid #dcd5e7;width:29px;height:29px;flex-shrink:0;border-radius:50%;font-size:10px}.intro-step-number.done{background:#edf6f1;border-color:#c8e0d5;color:var(--green)}.intro-step.active .intro-step-number{background:var(--purple);color:white;border-color:var(--purple)}.intro-step small{display:block;font-size:10px;opacity:.8;margin-top:4px;font-weight:400}.intro-rail-note{display:flex;gap:10px;font-size:11px;color:var(--muted);margin-top:23px;padding:0 10px;line-height:1.7}.intro-work{min-width:0;padding:30px}.intro-step-header{margin-bottom:24px}.intro-step-header .eyebrow{font-size:10px;color:var(--purple)}.intro-step-header h2{font-size:28px;margin:10px 0 13px;line-height:1.2;letter-spacing:-.7px}.intro-step-header p{font-size:14px;color:var(--muted);line-height:1.75;max-width:750px}.intro-instruction{font-size:13px;font-weight:500;margin:20px 0 16px}.task-grid{display:grid;gap:16px}.task-card{border:1px solid var(--line);border-radius:14px;padding:22px}.task-card>.number-box{float:left;margin:0 12px 12px 0;width:30px;height:30px;font-size:11px}.task-card h3{padding:3px 0 16px}.task-card>p{font-size:13px;color:var(--muted);clear:both;margin-bottom:16px}.intro-options{display:grid;gap:8px}.intro-option{border:1px solid var(--line);padding:12px 14px;border-radius:9px;text-align:left;background:white;display:flex;gap:10px;align-items:center;font-size:12px;color:var(--ink);min-height:46px}.intro-option:hover{background:#faf8fd;border-color:#cabcde}.intro-option.selected{background:#f0ebfa;border-color:#b69adb;color:var(--navy)}.option-dot{width:14px;height:14px;border-radius:50%;border:1px solid #c4bfcd;flex-shrink:0}.intro-feedback{padding:14px 16px;display:flex;gap:10px;border-radius:10px;font-size:12px;line-height:1.65;margin-top:14px}.intro-feedback.good{background:#eff7f2;color:#275d4c}.intro-feedback.retry{background:#fff7e9;color:#77562c}.intro-feedback svg{margin-top:2px}.intro-takeaway{display:flex;gap:13px;padding:20px 0;margin-top:20px;border-top:1px solid var(--line);font-size:13px;color:var(--navy);line-height:1.65}.intro-takeaway svg{margin-top:3px;color:var(--purple)}.intro-bottom{display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:12px}.intro-save-status{font-size:11px;color:var(--muted)}.intro-details{margin-top:22px;border-top:1px solid var(--line);padding-top:18px;font-size:12px;color:var(--muted)}.intro-details summary{cursor:pointer;color:var(--ink);font-weight:500;margin-bottom:12px}.intro-details p{line-height:1.7}.intro-details a{text-decoration:underline;text-underline-offset:3px;color:var(--purple)}.intro-details ul{padding-left:18px}.intro-details li{margin:8px 0}.intro-details dt{font-weight:600;color:var(--ink);margin-top:12px}.intro-details dd{margin:4px 0 12px}.experiment-toolbar{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:18px 0}.experiment-toolbar .tab{font-size:11px;padding:9px 13px}.experiment-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.experiment-card{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff}.experiment-title{padding:18px 18px 10px}.experiment-title h3{margin-top:12px;font-size:14px}.learning-plot{display:block;width:100%;height:auto;padding:0 10px}.experiment-metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px;padding:12px 10px}.experiment-metrics>div{padding:9px;border-radius:10px}.experiment-metrics strong{display:block;font-size:23px;font-weight:500;line-height:1.3}.experiment-metrics span{font-size:10px;color:var(--muted);display:block}.metric-focus{background:var(--lavender);color:var(--purple)}.plot-legend{display:flex;gap:20px;flex-wrap:wrap;font-size:11px;color:var(--muted);margin:14px 0}.plot-legend span{display:flex;align-items:center;gap:7px}.dot-circle,.dot-square{display:inline-block;width:9px;height:9px;background:#6440bf;border-radius:50%}.dot-square{border-radius:0;background:#267b61}.experiment-actions{display:flex;gap:12px;align-items:center;margin:22px 0 15px}.intro-next-hint{font-size:12px;color:var(--purple);margin-top:15px}.context-layout{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:18px;margin-top:22px}.context-source{border:1px solid var(--line);border-radius:14px;background:#faf9fd;padding:20px}.context-source h3{font-size:15px}.context-source .source-heading{margin-bottom:18px}.context-source>p{font-size:13px;line-height:1.85;margin-bottom:22px}.context-chat{min-width:0}.context-chat label{font-size:12px;display:block;margin-bottom:9px;font-weight:500}.context-chat select{width:100%;font-size:12px;border:1px solid var(--line);border-radius:9px;padding:12px 8px;background:white;color:var(--ink)}.context-answer{margin-top:17px;background:#f0ebfa;border-radius:0 13px 13px;padding:20px}.context-answer p{font-size:13px;margin-top:8px;line-height:1.8}.intro-note{margin-top:20px}.name-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.name-card{padding:20px;border-radius:13px;background:#faf9fd;border:1px solid var(--line);text-align:left;display:flex;flex-direction:column;min-height:176px;color:var(--ink)}.name-card.opened{background:white;border-color:#cfc0e7}.name-role{font-size:10px;color:var(--purple);text-transform:uppercase;letter-spacing:.8px}.name-card strong{display:block;font-size:17px;margin:12px 0}.name-description{font-size:11px;line-height:1.6;color:var(--muted)}.name-description svg{vertical-align:middle}.portal-title{margin:28px 0 17px}.portal-layers{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:17px;padding:20px;background:#f7f5fa;border-radius:13px}.portal-layers small{font-size:10px;color:var(--purple)}.portal-layers strong{display:block;margin:5px 0;font-size:12px}.portal-layers p{font-size:11px;color:var(--muted);line-height:1.65}.agent-scenario{font-size:13px;margin:20px 0;line-height:1.8}.agent-modes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.agent-mode{display:flex;align-items:center;gap:8px;padding:14px 10px;text-align:left;border-radius:10px;border:1px solid var(--line);background:white;font-size:11px;color:var(--muted)}.agent-mode.selected{background:var(--lavender);border-color:#c8b3e9;color:var(--purple)}.agent-flow{padding:22px;background:#f8f7fa;border-radius:12px;margin-top:15px}.agent-flow>p{font-size:13px;line-height:1.7}.agent-flow ol{margin:20px 0 0;padding:0;list-style:none;counter-reset:flow}.agent-flow li{counter-increment:flow;position:relative;padding:0 0 21px 42px;font-size:12px;line-height:1.7}.agent-flow li:before{content:counter(flow);position:absolute;left:0;top:0;width:25px;height:25px;background:white;border:1px solid #d9cdeb;color:var(--purple);border-radius:50%;display:grid;place-items:center;font-size:11px;z-index:1}.agent-flow li:not(:last-child):after{content:'';width:1px;background:#d9cdeb;position:absolute;left:12px;top:25px;bottom:0}.agent-flow li:last-child{padding-bottom:0}.intro-quiz-list{display:grid;gap:22px}.intro-quiz-list fieldset{border:1px solid var(--line);border-radius:14px;padding:20px;margin:0;min-width:0}.intro-quiz-list legend{font-size:14px;font-weight:500;line-height:1.5;padding:0 7px;max-width:100%}.intro-quiz-list legend .number-box{display:inline-grid;width:26px;height:26px;margin-right:8px;font-size:10px;vertical-align:middle}.quiz-choice{display:flex;gap:11px;align-items:start;font-size:12px;line-height:1.7;padding:13px 14px;border:1px solid var(--line);border-radius:9px;margin:9px 0;cursor:pointer}.quiz-choice:has(input:checked){border-color:#bda2e2;background:#f5f1fb}.quiz-choice input{margin-top:4px;accent-color:var(--purple);flex-shrink:0}#intro-quiz>.btn{margin-top:24px}.intro-finish{display:flex;flex-direction:column;align-items:flex-start;gap:19px;padding:12px 0}.intro-finish .result-icon{margin:0}.intro-finish p{font-size:14px;line-height:1.8;color:var(--muted)}
@media(min-width:1450px){.intro-options.horizontal{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:1200px){.intro-layout{grid-template-columns:180px minmax(0,1fr);gap:18px}.intro-work{padding:24px}.intro-step{font-size:11px}.name-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.context-layout{grid-template-columns:1fr}.intro-save-status{max-width:120px;text-align:center}.agent-mode{flex-direction:column;align-items:flex-start;gap:8px}.hero-copy{padding-right:18px}}
@media(max-width:950px){.intro-layout{grid-template-columns:minmax(0,1fr)}.intro-rail{position:static}.intro-rail ol{grid-template-columns:repeat(3,minmax(0,1fr));gap:5px}.intro-step{height:100%;padding:10px 8px;font-size:10px}.intro-step-number{width:24px;height:24px}.intro-rail-note{display:none}.intro-rail-heading{padding:0;margin-bottom:10px}.intro-work{padding:24px}.intro-heading .btn{display:none}.intro-hero .hero-art{opacity:.8}}
@media(max-width:650px){.course-grid{grid-template-columns:1fr}.course-card{padding:21px}.course-card-top{margin-bottom:14px}.course-card h3{font-size:18px}.course-card-bottom{margin-top:16px}.course-section{margin-top:25px}.course-section .section-heading{gap:12px;align-items:flex-start}.course-section .section-heading h2{font-size:19px}.course-subtitle{font-size:12px}.intro-hero .hero-art{display:none}.intro-rail ol{grid-template-columns:repeat(3,minmax(0,1fr))}.intro-step{flex-direction:column;align-items:flex-start;gap:7px;padding:10px;font-size:10px;min-height:89px}.intro-step small{display:none}.intro-step-number{width:23px;height:23px}.intro-work{padding:22px 17px}.intro-step-header h2{font-size:24px}.intro-step-header p{font-size:13px}.task-card{padding:17px}.task-card>p{font-size:12px}.intro-option{font-size:12px;padding:12px}.intro-feedback{font-size:11px;padding:12px}.intro-bottom{flex-wrap:wrap}.intro-save-status{max-width:100%;order:3;width:100%;margin-top:5px}.intro-takeaway{font-size:12px}.experiment-toolbar{flex-direction:column;align-items:flex-start}.experiment-pair{gap:9px}.experiment-title{padding:13px 10px 8px}.experiment-title .chip{font-size:8px;padding:4px 5px}.experiment-title h3{font-size:12px;line-height:1.5}.experiment-metrics{grid-template-columns:1fr;padding:3px 5px 8px}.experiment-metrics>div{padding:7px 8px}.experiment-metrics strong{font-size:21px}.experiment-metrics span{font-size:9px}.plot-legend{gap:10px;font-size:10px}.experiment-actions{flex-wrap:wrap;gap:9px}.experiment-actions .btn{font-size:12px}.name-grid{gap:9px}.name-card{padding:15px;min-height:190px}.name-card strong{font-size:15px}.name-role{font-size:9px;letter-spacing:.3px}.name-description{font-size:11px}.portal-layers{grid-template-columns:1fr}.agent-mode{font-size:10px;padding:11px 8px;min-height:89px}.agent-mode>svg:last-child{display:none}.agent-flow{padding:18px}.agent-flow li{padding-left:35px}.intro-quiz-list fieldset{padding:12px}.intro-quiz-list legend{font-size:13px}.quiz-choice{font-size:12px;padding:12px}.intro-finish h2{font-size:24px}.optional-list li{font-size:12px}.optional-list small{font-size:10px}.course-optional{padding:18px}.intro-details{overflow-wrap:anywhere}}