/* ===== 바이브코딩 실습실 ===== */
.vc-app{max-width:1280px}
.small{font-size:12.5px}
.view[hidden]{display:none}

/* ---------- 히어로 ---------- */
.hero-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:28px;align-items:start}
.hero h2{font-family:"Gowun Dodum","Noto Sans KR",sans-serif;font-weight:400;font-size:26px;margin:6px 0 10px;letter-spacing:-.01em}
.hero p{margin:0 0 14px;line-height:1.7;font-size:14.5px}
.flow{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.flow-pill{padding:6px 12px;border-radius:999px;background:var(--paper-2);border:1px solid var(--line);font-size:13px;font-weight:700}
.flow-arrow{color:var(--ink-soft)}
.proj-card{display:flex;gap:14px;align-items:center;padding:16px;border:1px dashed var(--line);border-radius:var(--radius-md);background:var(--paper-2);margin:8px 0 12px}
.proj-emoji{font-size:38px;width:60px;height:60px;display:grid;place-items:center;border-radius:14px;background:linear-gradient(135deg,var(--primary),var(--primary-soft))}
.proj-title{font-weight:900;font-size:17px;margin-bottom:4px}
.recommend{display:flex;flex-direction:column;gap:6px;align-items:flex-start}

/* ---------- 선택 그룹 ---------- */
.group{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px 24px;margin-bottom:14px;box-shadow:var(--shadow)}
.group-head{display:flex;align-items:baseline;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.group-head .num{font-family:"Space Grotesk",sans-serif;font-weight:700;color:var(--primary);font-size:13px;letter-spacing:.2em}
.group-head h3{margin:0;font-size:18px}
.group-head .muted{font-size:13px}
.opts{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px}
.opt{position:relative;text-align:left;border:2px solid var(--line);border-radius:var(--radius-md);background:var(--paper-2);padding:14px 14px 12px;cursor:pointer;font:inherit;color:var(--ink);transition:.15s}
.opt:hover{border-color:var(--primary-soft);transform:translateY(-1px)}
.opt.on{border-color:var(--primary);background:var(--paper);box-shadow:0 0 0 4px color-mix(in srgb,var(--primary) 18%,transparent)}
.opt .logo{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;font-weight:900;font-size:16px;color:#fff;margin-bottom:8px;font-family:"Space Grotesk",sans-serif}
.opt .name{font-weight:900;font-size:15px}
.opt .desc{font-size:12.5px;color:var(--ink-soft);line-height:1.5;margin-top:4px}
.opt .tags{display:flex;gap:4px;flex-wrap:wrap;margin-top:8px}
.opt .tag{font-size:11px;padding:2px 7px;border-radius:999px;background:var(--line-soft);color:var(--ink-soft)}
.opt .tag.good{background:color-mix(in srgb,var(--sage) 30%,transparent);color:var(--ink)}
.opt .check{position:absolute;top:10px;right:10px;width:22px;height:22px;border-radius:50%;border:2px solid var(--line);display:grid;place-items:center;font-size:12px;color:#fff}
.opt.on .check{background:var(--primary);border-color:var(--primary)}
.setup-actions{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;padding:8px 4px 24px}
.stack-summary{display:flex;gap:8px;flex-wrap:wrap;font-size:13px}
.stack-summary .chip{padding:6px 10px;border-radius:999px;background:var(--paper);border:1px solid var(--line)}

/* ---------- 코스 상단 ---------- */
.course-bar{display:flex;align-items:center;gap:18px;flex-wrap:wrap;padding:16px 20px}
.stack-chips{display:flex;gap:6px;flex-wrap:wrap}
.chip{display:inline-flex;align-items:center;gap:6px;padding:5px 10px;border-radius:999px;background:var(--paper-2);border:1px solid var(--line);font-size:12.5px;font-weight:700}
.chip .dot{width:9px;height:9px;border-radius:50%}
.progress-wrap{flex:1;min-width:180px}
.progress-label{font-size:12px;color:var(--ink-soft);margin-bottom:4px;display:flex;justify-content:space-between}
.progress{height:10px;background:var(--line-soft);border-radius:999px;overflow:hidden}
.progress-fill{height:100%;width:0;background:linear-gradient(90deg,var(--primary),var(--sage));border-radius:999px;transition:width .4s}
.course-actions{display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.danger-soft{color:var(--rose)}

/* ---------- 레이아웃 ---------- */
.course-layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:16px;align-items:start}
.sidebar{padding:16px;position:sticky;top:12px;max-height:calc(100vh - 24px);overflow:auto}
.stage{margin-bottom:12px}
.stage-title{display:flex;align-items:center;gap:8px;font-weight:900;font-size:13.5px;padding:6px 8px;border-radius:8px}
.stage-title .sn{width:22px;height:22px;border-radius:7px;display:grid;place-items:center;font-size:11px;color:#fff;font-family:"Space Grotesk",sans-serif}
.stage-title .st-sub{font-weight:400;color:var(--ink-soft);font-size:11.5px;margin-left:auto}
.lsn{display:flex;align-items:center;gap:8px;width:100%;text-align:left;border:none;background:none;font:inherit;color:var(--ink);padding:7px 8px 7px 14px;border-radius:8px;cursor:pointer;font-size:13px}
.lsn:hover{background:var(--paper-2)}
.lsn.cur{background:color-mix(in srgb,var(--primary) 14%,transparent);font-weight:700}
.lsn.locked{opacity:.45;cursor:not-allowed}
.lsn .mark{width:18px;height:18px;border-radius:50%;border:1.5px solid var(--line);display:grid;place-items:center;font-size:10px;flex:none}
.lsn.done .mark{background:var(--sage);border-color:var(--sage);color:#fff}
.lsn .t{flex:1;line-height:1.3}
.lsn .min{font-size:11px;color:var(--ink-soft)}

/* ---------- 레슨 ---------- */
.lesson{padding:26px 28px;min-height:520px;min-width:0}
.lesson-head{margin-bottom:16px}
.lesson-head .eyebrow{margin-bottom:4px}
.lesson-head h2{font-family:"Gowun Dodum","Noto Sans KR",sans-serif;font-weight:400;font-size:24px;margin:0 0 8px}
.goal{display:flex;gap:10px;align-items:flex-start;padding:12px 14px;border-radius:var(--radius-md);background:var(--paper-2);border:1px solid var(--line-soft);font-size:14px;line-height:1.6}
.goal .ic{font-size:18px}
.lesson-body{font-size:14.5px;line-height:1.75}
.lesson-body p{margin:8px 0}
.lesson-body b{color:var(--ink)}
.lesson-body ul{margin:6px 0 10px;padding-left:20px}
.lesson-body li{margin:3px 0}
.lesson-body h4{margin:18px 0 8px;font-size:15px}

.stepper{display:flex;gap:6px;flex-wrap:wrap;margin:18px 0 12px}
.stepper button{border:1px solid var(--line);background:var(--paper-2);color:var(--ink-soft);width:30px;height:30px;border-radius:50%;font:inherit;font-size:12px;cursor:pointer;font-weight:700}
.stepper button.cur{background:var(--primary);color:#fff;border-color:var(--primary)}
.stepper button.past{background:color-mix(in srgb,var(--sage) 35%,transparent);color:var(--ink);border-color:transparent}
.stepper .stepper-name{align-self:center;font-size:13px;color:var(--ink-soft);margin-left:6px}

.step-grid{display:grid;grid-template-columns:minmax(300px,.9fr) minmax(380px,1.35fr);gap:18px;align-items:start}
.step-guide{font-size:14.5px;line-height:1.75}
.step-guide .stitle{font-size:16px;font-weight:900;margin:0 0 6px;display:flex;gap:8px;align-items:center}
.step-guide .stitle .sno{width:26px;height:26px;border-radius:8px;background:var(--primary);color:#fff;display:grid;place-items:center;font-size:12px;font-family:"Space Grotesk",sans-serif;flex:none}
.step-guide ol.acts{padding-left:0;list-style:none;margin:8px 0}
.step-guide ol.acts li{display:flex;gap:8px;margin:5px 0;align-items:flex-start}
.step-guide ol.acts .n{flex:none;width:20px;height:20px;border-radius:50%;background:#ff6b3d;color:#fff;font-size:11px;font-weight:900;display:grid;place-items:center;margin-top:3px;font-family:"Space Grotesk",sans-serif}
.tip{margin:10px 0;padding:10px 12px;border-radius:10px;font-size:13px;line-height:1.6;border-left:4px solid var(--butter);background:color-mix(in srgb,var(--butter) 14%,transparent)}
.tip.warn{border-left-color:var(--rose);background:color-mix(in srgb,var(--rose) 12%,transparent)}
.tip.info{border-left-color:var(--sky);background:color-mix(in srgb,var(--sky) 14%,transparent)}
.tip.why{border-left-color:var(--sage);background:color-mix(in srgb,var(--sage) 14%,transparent)}
.tip b{display:inline-block;margin-right:4px}

.copybox{position:relative;margin:10px 0;border:1px solid var(--line);border-radius:10px;background:var(--paper-2);overflow:hidden}
.copybox .cb-head{display:flex;justify-content:space-between;align-items:center;padding:6px 10px;font-size:12px;color:var(--ink-soft);border-bottom:1px solid var(--line-soft);background:var(--paper)}
.copybox pre{margin:0;padding:12px;font-size:12.5px;line-height:1.55;white-space:pre-wrap;word-break:break-word;font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace;max-height:320px;overflow:auto}
.copybox.prompt pre{font-family:"Noto Sans KR",sans-serif;font-size:13.5px}
.copybox .cb-btn{border:1px solid var(--line);background:var(--paper-2);border-radius:6px;padding:3px 10px;font:inherit;font-size:12px;cursor:pointer;color:var(--ink)}
.copybox .cb-btn:hover{border-color:var(--primary)}

.step-nav{display:flex;justify-content:space-between;gap:8px;margin-top:18px;flex-wrap:wrap}
.step-nav .grow{flex:1}

/* ---------- 모의 화면(브라우저 프레임) ---------- */
.screen-wrap{position:sticky;top:12px}
.screen-label{font-size:11.5px;color:var(--ink-soft);margin-bottom:6px;display:flex;justify-content:space-between}
.browser{border-radius:12px;overflow:hidden;border:1px solid #cfd3da;background:#fff;box-shadow:0 12px 30px rgba(0,0,0,.14);color:#202124;font-size:12px;line-height:1.45;font-family:"Noto Sans KR",system-ui,sans-serif}
.browser *{box-sizing:border-box}
.b-top{display:flex;align-items:center;gap:8px;padding:7px 10px;background:#dfe3ea;border-bottom:1px solid #c9cdd5}
.b-dots span{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:4px}
.b-url{flex:1;background:#fff;border-radius:999px;padding:4px 12px;font-size:11.5px;color:#4b5563;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.b-body{min-height:340px;position:relative;overflow:hidden}
.hl{position:relative;outline:3px solid #ff6b3d !important;outline-offset:2px;border-radius:6px;animation:pulse 1.4s infinite;z-index:2}
.hl::after{content:attr(data-n);position:absolute;top:-11px;left:-11px;width:20px;height:20px;border-radius:50%;background:#ff6b3d;color:#fff;font-size:11px;font-weight:900;display:grid;place-items:center;font-family:"Space Grotesk",sans-serif;box-shadow:0 2px 6px rgba(0,0,0,.25)}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(255,107,61,.55)}60%{box-shadow:0 0 0 9px rgba(255,107,61,0)}}
.cursor{position:absolute;width:18px;height:18px;pointer-events:none;z-index:3}

/* 공용 모의 UI 조각 */
.m-btn{display:inline-flex;align-items:center;gap:5px;padding:5px 11px;border-radius:6px;border:1px solid #d0d5dd;background:#fff;font-size:11.5px;font-weight:600;color:#1f2937;white-space:nowrap}
.m-btn.pri{background:#1a73e8;color:#fff;border-color:#1a73e8}
.m-btn.dark{background:#111827;color:#fff;border-color:#111827}
.m-btn.pill{border-radius:999px}
.m-input{border:1px solid #d0d5dd;border-radius:6px;padding:6px 9px;background:#fff;font-size:11.5px;color:#374151}
.m-row{display:flex;gap:8px;align-items:center}
.m-col{display:flex;flex-direction:column;gap:6px}
.m-muted{color:#6b7280}
.m-code{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:11px;line-height:1.55;white-space:pre;overflow:auto}
.m-card{border:1px solid #e5e7eb;border-radius:10px;padding:10px 12px;background:#fff}
.m-menu{position:absolute;background:#fff;border:1px solid #d0d5dd;border-radius:8px;box-shadow:0 8px 24px rgba(0,0,0,.18);padding:6px 0;min-width:180px;z-index:4}
.m-menu div{padding:6px 14px;font-size:11.5px}
.m-menu div:hover{background:#f3f4f6}
.m-dialog{position:absolute;inset:0;background:rgba(17,24,39,.45);display:grid;place-items:center;z-index:5}
.m-dialog .box{background:#fff;border-radius:12px;padding:16px 18px;width:min(88%,380px);box-shadow:0 20px 50px rgba(0,0,0,.3)}
.m-dialog .box h5{margin:0 0 10px;font-size:14px}
.m-field{display:flex;flex-direction:column;gap:3px;margin:8px 0;font-size:11.5px}
.m-field label{color:#6b7280;font-size:10.5px}
.m-select{border:1px solid #d0d5dd;border-radius:6px;padding:6px 9px;background:#fff;display:flex;justify-content:space-between}
.m-toast{position:absolute;bottom:14px;left:50%;transform:translateX(-50%);background:#111827;color:#fff;padding:7px 14px;border-radius:8px;font-size:11.5px;z-index:6;white-space:nowrap}

/* AI 채팅류 */
.chat{display:grid;grid-template-columns:150px 1fr;height:380px}
.chat.with-canvas{grid-template-columns:1fr 1.15fr}
.chat.with-canvas .side{display:none}
.chat .side{background:#f1f3f6;border-right:1px solid #e5e7eb;padding:10px;font-size:11.5px}
.chat .side .brand{font-weight:900;font-size:13px;margin-bottom:10px;display:flex;gap:6px;align-items:center}
.chat .side .item{padding:5px 8px;border-radius:6px;color:#374151;margin:2px 0}
.chat .side .item.on{background:#e2e6ec}
.chat .main{display:flex;flex-direction:column;padding:12px 14px;gap:8px;overflow:hidden}
.chat .msgs{flex:1;overflow:auto;display:flex;flex-direction:column;gap:8px}
.chat .msg{max-width:92%;word-break:keep-all;overflow-wrap:anywhere;padding:8px 11px;border-radius:12px;font-size:11.5px;line-height:1.5}
.chat .msg.me{align-self:flex-end;background:#e8eefc}
.chat .msg.ai{align-self:flex-start;background:#f3f4f6}
.chat .composer{border:1px solid #d0d5dd;border-radius:14px;padding:8px 10px;background:#fff}
.chat .composer .txt{min-height:36px;color:#374151;font-size:11.5px;white-space:pre-wrap}
.chat .composer .tools{display:flex;gap:6px;margin-top:6px;align-items:center;flex-wrap:wrap}
.chat .tools .send{flex:none;margin-left:auto;width:26px;height:26px;border-radius:50%;background:#111827;color:#fff;display:grid;place-items:center;font-size:12px}
.chat .canvas{border-left:1px solid #e5e7eb;display:flex;flex-direction:column;background:#fafafa}
.chat .canvas .c-head{display:flex;justify-content:space-between;align-items:center;gap:6px;padding:7px 8px;border-bottom:1px solid #e5e7eb;background:#fff;font-size:11px;white-space:nowrap}
.chat .canvas .c-head>span:first-child{overflow:hidden;text-overflow:ellipsis;min-width:0}
.chat .canvas .c-head .m-row{flex:none}
.chat .canvas .c-body{flex:1;overflow:auto;padding:10px}
.chat .canvas .tab{padding:2px 7px;border-radius:999px;font-size:10px;border:1px solid #d0d5dd;white-space:nowrap}
.chat .canvas .tab.on{background:#111827;color:#fff;border-color:#111827}
.brand-g{background:linear-gradient(90deg,#4285f4,#9b72cb,#d96570);-webkit-background-clip:text;background-clip:text;color:transparent}

/* 앱 프리뷰 (완성 앱) */
.mini-app{border-radius:12px;overflow:hidden;border:1px solid #e5e7eb;background:#fff;font-size:11.5px}
.mini-app .ma-head{background:linear-gradient(135deg,#5b6fd6,#8fa3f0);color:#fff;padding:9px 12px;font-weight:900;display:flex;justify-content:space-between;align-items:center}
.mini-app .ma-body{padding:10px 12px}
.mini-app .q{font-weight:700;margin-bottom:6px}
.mini-app .choice{padding:6px 9px;border:1px solid #d0d5dd;border-radius:8px;margin:4px 0}
.mini-app .choice.ok{background:#dcfce7;border-color:#22c55e}
.mini-app .choice.bad{background:#fee2e2;border-color:#ef4444}
.mini-app .score{margin-top:8px;font-weight:700;color:#5b6fd6}

/* 코드 에디터 (앱스스크립트) */
.ide{display:grid;grid-template-columns:120px 1fr;height:380px;background:#fff}
.ide .files{border-right:1px solid #e5e7eb;padding:8px;font-size:11.5px;background:#f8f9fa}
.ide .files .f{padding:5px 8px;border-radius:5px;margin:2px 0}
.ide .files .f.on{background:#e8f0fe;color:#1a73e8;font-weight:700}
.ide .editor{display:flex;flex-direction:column}
.ide .bar{display:flex;gap:6px;align-items:center;padding:7px 10px;border-bottom:1px solid #e5e7eb}
.ide .code{flex:1;padding:10px 12px;overflow:auto;background:#fff}
.ide .code .ln{color:#9ca3af;display:inline-block;width:22px;text-align:right;margin-right:10px;user-select:none}
.ide .log{border-top:1px solid #e5e7eb;padding:6px 10px;font-size:11px;background:#f8f9fa;color:#374151;max-height:64px;overflow:auto}
.kw{color:#8250df}.st{color:#0a7d3e}.fn{color:#953800}.cm{color:#6e7781}

/* 시트 */
.sheet{background:#fff;height:380px;display:flex;flex-direction:column;font-size:11.5px}
.sheet .sh-top{padding:6px 10px;display:flex;gap:10px;align-items:center;border-bottom:1px solid #e5e7eb}
.sheet .sh-menu{display:flex;gap:10px;padding:4px 10px;font-size:11px;color:#374151;border-bottom:1px solid #e5e7eb}
.sheet table{border-collapse:collapse;width:100%;font-size:11px}
.sheet td,.sheet th{border:1px solid #e0e0e0;padding:4px 6px;text-align:left;height:22px;white-space:nowrap}
.sheet th{background:#f8f9fa;color:#5f6368;font-weight:500;text-align:center;width:28px}
.sheet thead th{width:auto}
.sheet td.sel{outline:2px solid #1a73e8;outline-offset:-2px}
.sheet .tabs{margin-top:auto;border-top:1px solid #e5e7eb;padding:4px 10px;display:flex;gap:8px}
.sheet .tabs span{padding:3px 12px;border-radius:4px;font-size:11px}
.sheet .tabs span.on{background:#e8f0fe;color:#1a73e8;font-weight:700}

/* 콘솔류 (Firebase, Supabase, AI Studio, 공공데이터, GitHub, Vercel) */
.console{display:grid;grid-template-columns:150px 1fr;height:380px;background:#fff}
.console .nav{background:#f6f7f9;border-right:1px solid #e5e7eb;padding:10px;font-size:11.5px}
.console .nav .brand{font-weight:900;font-size:12.5px;margin-bottom:10px;display:flex;align-items:center;gap:6px}
.console .nav .item{padding:5px 8px;border-radius:6px;color:#374151;margin:2px 0}
.console .nav .item.on{background:#e2e6ec;font-weight:700}
.console .cont{padding:14px 16px;overflow:auto;position:relative}
.console h5{margin:0 0 10px;font-size:14px}
.console .table{width:100%;border-collapse:collapse;font-size:11px}
.console .table td,.console .table th{border-bottom:1px solid #eee;padding:6px 8px;text-align:left}
.console .table th{color:#6b7280;font-weight:600}
.keybox{font-family:ui-monospace,Menlo,Consolas,monospace;background:#f3f4f6;border:1px dashed #cbd5e1;padding:6px 10px;border-radius:6px;font-size:11px;display:flex;justify-content:space-between;gap:8px;align-items:center}
.gh-header{background:#24292f;color:#fff;padding:8px 14px;display:flex;gap:14px;align-items:center;font-size:12px}
.gh-body{padding:14px 18px;background:#fff;min-height:340px}
.gh-file{display:flex;justify-content:space-between;padding:6px 10px;border-bottom:1px solid #eee;font-size:11.5px}
.gh-title{font-size:14px;font-weight:700;margin:0 0 10px}

/* 개념 그림 */
.diagram{background:#fff;min-height:340px;padding:18px;display:flex;flex-direction:column;justify-content:center;gap:12px;color:#1f2937}
.dg-row{display:flex;align-items:center;gap:10px;justify-content:center;flex-wrap:wrap}
.dg-box{border:2px solid #cbd5e1;border-radius:12px;padding:10px 14px;min-width:110px;text-align:center;font-size:12px;background:#f8fafc}
.dg-box b{display:block;font-size:13px;margin-bottom:2px}
.dg-box.acc{border-color:#5b6fd6;background:#eef1fd}
.dg-arrow{font-size:20px;color:#94a3b8}
.dg-note{text-align:center;font-size:11.5px;color:#64748b}

/* 체크리스트 · 퀴즈 · 완료 */
.finish{margin-top:18px;border-top:1px dashed var(--line);padding-top:16px}
.check{display:flex;gap:10px;align-items:flex-start;padding:8px 10px;border-radius:8px;cursor:pointer;font-size:14px}
.check:hover{background:var(--paper-2)}
.check input{margin-top:4px;accent-color:var(--primary)}
.quiz{margin:12px 0;padding:14px;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--paper-2)}
.quiz .qq{font-weight:700;margin-bottom:8px}
.quiz .qo{display:block;width:100%;text-align:left;padding:8px 12px;margin:4px 0;border:1px solid var(--line);border-radius:8px;background:var(--paper);font:inherit;color:var(--ink);cursor:pointer;font-size:13.5px}
.quiz .qo:hover{border-color:var(--primary)}
.quiz .qo.right{border-color:var(--sage);background:color-mix(in srgb,var(--sage) 25%,transparent)}
.quiz .qo.wrong{border-color:var(--rose);background:color-mix(in srgb,var(--rose) 20%,transparent)}
.quiz .exp{margin-top:8px;font-size:13px;color:var(--ink-soft)}
.done-banner{display:flex;gap:12px;align-items:center;padding:14px 16px;border-radius:var(--radius-md);background:color-mix(in srgb,var(--sage) 22%,transparent);border:1px solid var(--sage);margin-top:12px}


/* 토스트 */
.toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);background:var(--ink);color:var(--paper);padding:10px 18px;border-radius:999px;font-size:13px;z-index:99;box-shadow:var(--shadow)}
.vc-footer{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:20px 4px 0;font-size:13px;color:var(--ink-soft)}

@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr}
  .course-layout{grid-template-columns:1fr}
  .sidebar{position:static;max-height:none;order:2}
  .chat,.chat.with-canvas{height:auto}
  .chat .main{min-height:200px}
  .ide,.console,.sheet{height:auto;min-height:300px}
  .step-grid{grid-template-columns:1fr}
  .screen-wrap{position:static}
  .chat,.chat.with-canvas{grid-template-columns:1fr}
  .chat .side,.console .nav,.ide .files{display:none}
  .console,.ide{grid-template-columns:1fr}
}

/* ---------- 과목·단원 입력 ---------- */
.proj-form{display:grid;grid-template-columns:110px 1fr;gap:8px;margin-bottom:12px}
.proj-form .pf{display:flex;flex-direction:column;gap:3px;font-size:12px;color:var(--ink-soft)}
.proj-form .pf:nth-child(3){grid-column:1/-1}
.proj-form input,.proj-form select{font:inherit;font-size:14px;padding:8px 10px;border:1px solid var(--line);border-radius:10px;background:var(--paper);color:var(--ink)}
.proj-form input:focus,.proj-form select:focus{outline:2px solid color-mix(in srgb,var(--primary) 40%,transparent);border-color:var(--primary)}
.chip.proj{background:color-mix(in srgb,var(--butter) 30%,transparent)}

/* ================= 수료증 ================= */
.cert-tools{display:flex;gap:8px;flex-wrap:wrap;align-items:flex-end;margin-top:14px}
.cert-tools .f{display:flex;flex-direction:column;gap:4px;font-size:12px;color:var(--ink-soft);flex:1;min-width:130px}
.cert-tools input{font:inherit;font-size:14px;padding:9px 12px;border:1px solid var(--line);border-radius:10px;background:var(--paper);color:var(--ink)}
.cert-tools input:focus{outline:2px solid color-mix(in srgb,var(--primary) 40%,transparent);border-color:var(--primary)}
.cert-actions{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0 4px}

.cert-wrap{margin-top:16px;overflow-x:auto;padding-bottom:2px}
.cert-sheet{
  container-type:inline-size;
  position:relative; width:100%; min-width:620px; aspect-ratio:297/210; overflow:hidden;
  background:#FDFBF3; color:#2E2A24; border-radius:4px;
  box-shadow:0 18px 44px rgba(60,45,20,.24), 0 2px 6px rgba(60,45,20,.14);
  font-family:"Noto Sans KR",sans-serif;
}
/* 종이 결 + 길로쉐(지폐 무늬) 배경 */
.cert-sheet::before{
  content:''; position:absolute; inset:0; pointer-events:none; opacity:.5;
  background-image:
    repeating-radial-gradient(circle at 50% 50%, transparent 0 6px, rgba(176,141,63,.055) 6px 6.6px),
    radial-gradient(120% 90% at 50% 0%, rgba(176,141,63,.07), transparent 55%),
    radial-gradient(100% 80% at 50% 100%, rgba(91,111,214,.05), transparent 60%);
}
.cert-mark{position:absolute; left:50%; top:52%; transform:translate(-50%,-50%); width:34cqw; height:34cqw;
  opacity:.045; pointer-events:none; z-index:1}
.cert-mark svg{width:100%;height:100%;display:block}
.cert-frame{position:absolute; inset:2.4cqw; border:0.34cqw solid #B08D3F; border-radius:2px}
.cert-frame::after{content:''; position:absolute; inset:0.7cqw; border:0.12cqw solid #C9AE6E}
.cert-corner{position:absolute; width:5.4cqw; height:5.4cqw; color:#B08D3F; opacity:.9}
.cert-corner.tl{top:3.2cqw; left:3.2cqw}
.cert-corner.tr{top:3.2cqw; right:3.2cqw; transform:scaleX(-1)}
.cert-corner.bl{bottom:3.2cqw; left:3.2cqw; transform:scaleY(-1)}
.cert-corner.br{bottom:3.2cqw; right:3.2cqw; transform:scale(-1)}
.cert-corner svg{width:100%;height:100%;display:block}

.cert-body{position:relative; z-index:2; height:100%; padding:5.6cqw 8.4cqw 6.6cqw; display:flex; flex-direction:column}
.cert-no{position:absolute; top:4.6cqw; left:8.4cqw; font-size:1.32cqw; letter-spacing:.06em; color:#7A6A50}
.cert-emblem{display:flex; align-items:center; justify-content:center; gap:1cqw; margin-bottom:1.1cqw}
.cert-emblem .ico{width:3.4cqw;height:3.4cqw;border-radius:0.8cqw;background:linear-gradient(135deg,#5B6FD6,#8FA3F0);
  display:grid;place-items:center;font-size:1.9cqw;color:#fff}
.cert-emblem .org{font-size:1.62cqw; letter-spacing:.30em; color:#6B5B43; font-weight:700}

.cert-title{text-align:center; font-family:"Nanum Myeongjo","Noto Serif KR","Noto Serif CJK KR",serif;
  font-size:5.6cqw; font-weight:800; letter-spacing:.34em; text-indent:.34em; color:#1F1B14; line-height:1.05; margin:0}
.cert-sub{text-align:center; font-family:"Space Grotesk",sans-serif; font-size:1.28cqw; letter-spacing:.42em;
  text-indent:.42em; color:#B08D3F; margin-top:.9cqw}
.cert-rule{width:14cqw; height:0.22cqw; background:linear-gradient(90deg,transparent,#B08D3F,transparent); margin:1.2cqw auto 0}

.cert-fields{margin:1.8cqw auto 0; width:100%; max-width:74cqw; border-collapse:collapse; font-size:1.72cqw}
.cert-fields th,.cert-fields td{padding:.52cqw 1.2cqw; text-align:left; vertical-align:middle;
  border-bottom:0.09cqw solid rgba(176,141,63,.34)}
.cert-fields th{width:16cqw; font-weight:700; color:#7A6A50; letter-spacing:.24em; font-size:1.42cqw}
.cert-fields td{color:#221E18; font-weight:500}
.cert-fields td b{font-weight:800}
.cert-fields .nm{font-family:"Nanum Myeongjo","Noto Serif KR","Noto Serif CJK KR",serif; font-size:2.5cqw; font-weight:800; letter-spacing:.1em}
.cert-stack{display:flex; gap:.5cqw; flex-wrap:wrap}
.cert-stack span{font-size:1.24cqw; padding:.28cqw .9cqw; border-radius:99px; border:0.09cqw solid rgba(176,141,63,.5);
  background:rgba(176,141,63,.09); color:#5E5138; font-weight:600}

.cert-text{margin-top:auto; padding-top:1.2cqw; text-align:center; font-size:1.62cqw; line-height:1.7; color:#2E2A24;
  font-family:"Nanum Myeongjo","Noto Serif KR","Noto Sans KR",serif}
.cert-date{text-align:center; font-size:1.74cqw; letter-spacing:.22em; margin-top:1.2cqw; color:#2E2A24;
  font-family:"Nanum Myeongjo","Noto Serif KR","Noto Sans KR",serif}
.cert-sign{display:flex; align-items:center; justify-content:center; gap:1.1cqw; margin-top:1cqw; position:relative}
.cert-sign .who{font-family:"Nanum Myeongjo","Noto Serif KR","Noto Serif CJK KR",serif; font-size:2.2cqw; font-weight:800; letter-spacing:.18em; color:#1F1B14}
.cert-seal{width:6cqw; height:6cqw; flex:none; margin-left:-.2cqw}
.cert-seal svg{width:100%;height:100%;display:block}
.cert-foot{margin-top:1.2cqw; display:flex; justify-content:space-between;
  font-size:1.08cqw; color:#8B7B60; letter-spacing:.04em}

/* 컨테이너 쿼리 미지원 브라우저 대비 (고정 폭 근사) */
@supports not (container-type: inline-size){
  .cert-sheet{font-size:10px}
  .cert-title{font-size:64px;letter-spacing:.3em}
  .cert-sub{font-size:12px}
  .cert-fields{font-size:15px;max-width:none}
  .cert-fields th{font-size:13px;width:130px}
  .cert-fields .nm{font-size:26px}
  .cert-text{font-size:15px}.cert-date{font-size:16px}.cert-sign .who{font-size:22px}
  .cert-no,.cert-foot{font-size:11px}.cert-stack span{font-size:11px}
  .cert-emblem .org{font-size:14px}.cert-emblem .ico{width:30px;height:30px;font-size:17px;border-radius:8px}
  .cert-seal{width:66px;height:66px}
  .cert-body{padding:52px 66px 42px}.cert-frame{inset:18px;border-width:3px}
  .cert-corner{width:44px;height:44px;top:auto;left:auto}
}

/* ---------- 인쇄: A4 가로 한 장에 수료증만 ---------- */
@media print{
  @page{size:A4 landscape; margin:0}
  html,body{margin:0 !important; padding:0 !important; background:#fff !important}
  body.printing > *{display:none !important}
  body.printing > #printRoot{display:block !important}
  #printRoot{position:absolute; inset:0; margin:0; padding:0}
  #printRoot .cert-wrap{margin:0; overflow:visible}
  #printRoot .cert-sheet{min-width:0 !important}
  #printRoot .cert-sheet{width:297mm !important; height:210mm !important; aspect-ratio:auto !important;
    border-radius:0 !important; box-shadow:none !important;
    -webkit-print-color-adjust:exact; print-color-adjust:exact}
  #printRoot .cert-sheet::before{opacity:.45}
}

/* ---------- OS 토글 · 단축키 · 실제 화면 링크 ---------- */
.seg{display:inline-flex;align-items:center;gap:2px;padding:3px;border:1px solid var(--line);border-radius:999px;background:var(--paper-2);flex-shrink:0}
.seg button{border:none;background:transparent;font:inherit;font-size:12.5px;line-height:1;padding:7px 12px;border-radius:999px;cursor:pointer;color:var(--ink-soft);white-space:nowrap;display:inline-flex;align-items:center;gap:5px;transition:background .15s,color .15s}
.seg button:hover{color:var(--ink)}
.seg button.on{background:var(--ink);color:var(--paper);font-weight:700}
.seg button .ico{width:13px;height:13px;flex:none}
kbd{display:inline-block;font-family:"Space Grotesk",ui-monospace,monospace;font-size:.85em;padding:1px 6px;border:1px solid var(--line);border-bottom-width:2px;border-radius:5px;background:var(--paper);color:var(--ink);white-space:nowrap;line-height:1.5}
.screen-tools{display:inline-flex;gap:8px;align-items:center}
.real-link{color:var(--primary);text-decoration:none;font-weight:700}
.real-link:hover{text-decoration:underline}
.replay-btn{border:1px solid var(--line);background:var(--paper-2);border-radius:999px;font:inherit;font-size:11px;padding:2px 9px;cursor:pointer;color:var(--ink)}
.replay-btn:hover{border-color:var(--primary)}
.os-tag{font-size:10.5px;padding:1px 7px;border-radius:999px;background:var(--line-soft);color:var(--ink-soft);margin-left:4px}

/* Windows 크롬 */
.browser.win .b-top.win{display:flex;align-items:center;justify-content:space-between;padding:6px 8px 0;background:#e8ebef;border-bottom:none}
.browser.win .b-tab{background:#fff;border-radius:8px 8px 0 0;padding:6px 14px;font-size:11.5px;color:#1f2937;max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.browser.win .b-winctl i{font-style:normal;font-size:10px;color:#4b5563;margin-left:14px}
.browser.win .b-nav{display:flex;align-items:center;gap:8px;padding:6px 10px;background:#fff;border-bottom:1px solid #dfe3ea}
.browser.win .b-arrows{color:#6b7280;font-size:13px;letter-spacing:.2em}
.browser.win .b-url{background:#f1f3f4;border-radius:999px}
.b-ext{color:#6b7280;font-size:13px;padding:0 4px}

/* 커서 재생 */
.cursor{position:absolute;left:0;top:0;width:22px;height:22px;pointer-events:none;z-index:9;filter:drop-shadow(0 2px 3px rgba(0,0,0,.35));transition:opacity .5s}
.cursor svg{width:100%;height:100%;display:block}
.cursor.click::after{content:'';position:absolute;left:-9px;top:-9px;width:36px;height:36px;border-radius:50%;border:3px solid #ff6b3d;animation:ripple .32s ease-out forwards}
.cursor.fade{opacity:0}
@keyframes ripple{0%{transform:scale(.3);opacity:1}100%{transform:scale(1.4);opacity:0}}
.hl.clicked{background-color:rgba(255,107,61,.12) !important;animation:none}

/* ---------- 실제 캡처 화면 ---------- */
.real-shot{position:relative;background:#fff}
.real-shot img{display:block;width:100%;height:auto}
.real-hl{position:absolute;border-radius:6px}
.real-tag{position:absolute;right:8px;bottom:8px;font-size:10.5px;padding:2px 8px;border-radius:999px;background:rgba(17,24,39,.72);color:#fff;pointer-events:none}
.view-seg{display:inline-flex;align-items:center;gap:2px;padding:2px;border:1px solid var(--line);border-radius:999px;background:var(--paper-2);margin-right:6px}
.view-seg button{border:none;background:transparent;font:inherit;font-size:11px;line-height:1;padding:4px 9px;border-radius:999px;cursor:pointer;color:var(--ink-soft);white-space:nowrap}
.view-seg button.on{background:var(--primary);color:#fff;font-weight:700}

/* 실제 캡처는 가로로 넓게 */
.step-grid.real-mode{grid-template-columns:1fr}
.step-grid.real-mode .screen-wrap{position:static}
.b-body:has(.real-shot){min-height:0}
.real-shot{cursor:zoom-in}
.screen-label{flex-wrap:wrap;gap:6px}
.lightbox{position:fixed;inset:0;background:rgba(17,24,39,.86);z-index:200;display:grid;place-items:center;padding:20px;cursor:zoom-out}
.lightbox .real-shot{width:min(96vw,1400px);cursor:zoom-out;border-radius:8px;overflow:hidden;box-shadow:0 30px 80px rgba(0,0,0,.5)}
.lightbox .real-hl{animation:none}
.lightbox .hint{position:absolute;bottom:14px;left:50%;transform:translateX(-50%);color:#fff;font-size:13px;opacity:.85}

/* ---------- 에이전트 모드: 터미널 · 편집기 모형 ---------- */
.browser.term{background:#0c0c0c;color:#e5e7eb;border-color:#2a2f3a;font-family:"Cascadia Code","JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;font-size:11.5px;line-height:1.55}
.t-top{display:flex;align-items:center;gap:8px;padding:6px 10px;background:#1f2430;border-bottom:1px solid #2a2f3a;color:#cbd5e1;font-size:11px;font-family:"Noto Sans KR",system-ui,sans-serif}
.t-top.mac{justify-content:space-between}
.t-top .t-title{flex:1;text-align:center;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.t-top.win{justify-content:space-between;padding:4px 6px 0;background:#1f2430;border-bottom:none}
.t-top.win .t-tab{background:#0c0c0c;border-radius:6px 6px 0 0;padding:5px 12px;font-size:11px;color:#e5e7eb}
.t-top.win .t-tab i{font-style:normal;opacity:.6;margin-left:10px}
.t-top.win .t-plus{flex:1;padding-left:8px;opacity:.7}
.t-top.win .b-winctl i{font-style:normal;color:#cbd5e1;margin-left:14px;font-size:10px}
.t-top.win.ed{padding:5px 8px;background:#2b2d31;border-bottom:1px solid #1e1f22}
.t-top.win.ed .e-menu{white-space:nowrap;font-size:10.5px;opacity:.85}
.tbody{padding:10px 12px;min-height:320px}
.tlines{white-space:pre-wrap;word-break:break-word}
.tl{padding:1px 4px;border-radius:4px;margin:0 -4px}
.tl.cmd .tp{color:#7dd3fc}.tl.cmd .td{color:#c4b5fd}.tl.cmd .tc{color:#fff;font-weight:600}
.tl.ok{color:#86efac}.tl.err{color:#fca5a5}.tl.dim{color:#6b7280}.tl.out{color:#d1d5db}
.tl.ai{color:#e5e7eb}.tl.ai .tdot{color:#d97757}.tl.tool .tdot.tool{color:#86efac}
.tl.me{color:#fff}.tl .tprompt{color:#d97757;font-weight:900}
.tinput{border:1px solid #3f4653;border-radius:6px;padding:6px 10px;margin:6px 0;color:#fff;background:#111318}
.tcaret{animation:blink 1s steps(1) infinite;color:#fff}
@keyframes blink{50%{opacity:0}}
.tbox{border:1px solid #4b5563;border-radius:6px;padding:8px 12px;margin:6px 0;color:#e5e7eb;background:#111318}
.tbox b{color:#fbbf24}
.task{border:1px solid #d97757;border-radius:6px;padding:8px 12px;margin:6px 0;background:#1a1512}
.task .sel{color:#fff;font-weight:700}.task .opt{color:#9ca3af}
.tl.hl{outline-offset:0}
/* 편집기 */
.browser.ed{font-size:11px}
.ebody{display:grid;grid-template-columns:150px minmax(0,1fr);min-height:340px;background:#1e1f22;color:#d4d4d4;font-family:"Noto Sans KR",system-ui,sans-serif}
.ebody.with-chat{grid-template-columns:140px minmax(0,1fr) 230px}
.eside{background:#181818;border-right:1px solid #2b2d31;padding:6px 0;font-size:10.5px}
.es-head{padding:4px 10px;letter-spacing:.08em;color:#9ca3af;font-size:9.5px}
.es-proj{padding:3px 10px;font-weight:700;color:#e5e7eb}
.ef{padding:2px 10px 2px 18px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:#cbd5e1}
.ef.on{background:#2a2d2e;color:#fff}
.emain{display:flex;flex-direction:column;min-width:0}
.etabs{display:flex;background:#181818;border-bottom:1px solid #2b2d31}
.etabs span{padding:5px 12px;font-size:10.5px;color:#9ca3af}.etabs span.on{background:#1e1f22;color:#fff;border-top:1px solid #d97757}
.ecode{margin:0;padding:10px 12px;font-family:"Cascadia Code",ui-monospace,Menlo,Consolas,monospace;font-size:10.5px;line-height:1.5;color:#d4d4d4;white-space:pre-wrap;word-break:break-word;flex:1;max-height:230px;overflow:hidden}
.eterm{border-top:1px solid #2b2d31;background:#181818;padding:4px 10px 8px;font-family:"Cascadia Code",ui-monospace,Menlo,Consolas,monospace;font-size:10.5px}
.et-head{display:flex;gap:14px;font-size:9.5px;letter-spacing:.08em;color:#9ca3af;padding:2px 0 6px;font-family:"Noto Sans KR",system-ui,sans-serif}
.et-head span:first-child{color:#fff;border-bottom:1px solid #fff}
.echat{border-left:1px solid #2b2d31;background:#181818;display:flex;flex-direction:column;min-width:0}
.ec-head{display:flex;justify-content:space-between;padding:6px 10px;border-bottom:1px solid #2b2d31;font-size:10.5px;color:#e5e7eb}
.ec-msgs{flex:1;padding:8px;display:flex;flex-direction:column;gap:6px;overflow:hidden}
.ecm{font-size:10.5px;line-height:1.5;padding:6px 8px;border-radius:8px;background:#26282d;color:#d4d4d4}
.ecm.me{background:#2f3340;color:#fff;align-self:flex-end;max-width:92%}
.ec-diff{display:flex;justify-content:space-between;align-items:center;gap:6px;margin:0 8px 6px;padding:6px 8px;border:1px solid #3f4653;border-radius:6px;font-size:10px;color:#cbd5e1}
.ec-input{margin:6px 8px 8px;border:1px solid #3f4653;border-radius:8px;padding:6px 8px;font-size:10.5px;color:#fff;display:flex;justify-content:space-between;gap:6px;background:#111318}
.ec-input .send{color:#d97757}
@media (max-width:640px){.ebody,.ebody.with-chat{grid-template-columns:1fr}.eside,.echat{display:none}}
/* 맨 아래 공용 푸터: ⓒ 표기를 링크와 같은 진하기로 */
.scit-legal > span:first-child{opacity:1}
.vc-footer{justify-content:center;text-align:center}

/* ---------- 기본 / 에이전트 토글 · 심화 예제 ---------- */
.mode-seg{align-self:center}
.mode-seg button{padding:7px 14px;font-size:13.5px}
body.mode-agent .vc-top h1::after{content:" · 에이전트";font-size:.55em;color:var(--ink-soft);font-family:"Noto Sans KR",sans-serif;vertical-align:middle;margin-left:6px}
.adv-zone{margin-top:22px;padding:18px 20px;border:1px dashed var(--line);border-radius:var(--radius-lg);background:var(--paper-2)}
.adv-head h3{font-size:18px}
.adv-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:10px;margin:14px 0 12px}
.adv-card{position:relative;text-align:left;border:2px solid var(--line);border-radius:var(--radius-md);background:var(--paper);padding:14px 14px 12px;cursor:pointer;font:inherit;color:var(--ink);transition:.15s}
.adv-card:hover{border-color:var(--primary-soft);transform:translateY(-1px)}
.adv-card.on{border-color:var(--primary);box-shadow:0 0 0 4px color-mix(in srgb,var(--primary) 18%,transparent)}
.adv-card.done{border-color:var(--sage)}
.adv-card .check{position:absolute;top:10px;right:10px;width:22px;height:22px;border-radius:50%;border:2px solid var(--line);display:grid;place-items:center;font-size:12px;color:#fff}
.adv-card.on .check{background:var(--primary);border-color:var(--primary)}
.adv-card.done .check{background:none;border-color:transparent;font-size:16px}
.adv-card .ico{font-size:26px;margin-bottom:6px}
.adv-card .name{font-weight:900;font-size:15px}
.adv-card .desc{font-size:12.5px;color:var(--ink-soft);line-height:1.5;margin-top:4px}
.adv-card .tags{display:flex;gap:4px;flex-wrap:wrap;margin-top:8px}
.adv-card .tag{font-size:11px;padding:2px 7px;border-radius:999px;background:var(--line-soft);color:var(--ink-soft)}
.adv-actions{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}
.adv-pick-btn{width:100%;margin-top:10px;font-size:13px;justify-content:center}
@media (max-width:640px){.mode-seg button{padding:6px 10px;font-size:12.5px}}