:root{--navy:#102a43;--navy2:#183b56;--blue:#2463eb;--sky:#e8f0ff;--cream:#f8f7f3;--paper:#fff;--line:#e3e8ee;--muted:#617588;--green:#0f856a;--greenbg:#e8f7f1;--amber:#a0610a;--amberbg:#fff4df;--red:#b94b4b;--shadow:0 12px 32px rgba(16,42,67,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--cream);font-family:Arial,'Malgun Gothic','Apple SD Gothic Neo',sans-serif;color:var(--navy);line-height:1.55}button,input,select{font:inherit}button{cursor:pointer}a{color:inherit}.shell{min-height:100vh;display:grid;grid-template-columns:248px minmax(0,1fr)}.sidebar{background:var(--navy);color:#d6e4f0;padding:28px 18px;position:sticky;top:0;height:100vh;display:flex;flex-direction:column}.brand{display:flex;align-items:center;gap:11px;font-size:22px;font-weight:800;color:white;padding:3px 10px 26px;letter-spacing:-.04em}.brandmark{width:34px;height:34px;display:grid;place-items:center;border-radius:11px;background:#6cc5ae;color:var(--navy);font-size:22px}.nav{display:grid;gap:7px}.nav button{display:flex;align-items:center;gap:12px;width:100%;border:0;background:transparent;color:inherit;border-radius:11px;padding:12px 13px;text-align:left;font-weight:700}.nav button:hover,.nav button.active{background:rgba(255,255,255,.12);color:#fff}.nav .num{font-size:12px;width:23px;height:23px;border:1px solid #7c99ad;border-radius:50%;display:grid;place-items:center}.sidebar-note{margin-top:auto;background:rgba(255,255,255,.08);border-radius:13px;padding:14px;font-size:12px;line-height:1.6}.main{min-width:0}.topbar{height:72px;background:rgba(255,255,255,.8);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 5.2%;backdrop-filter:blur(10px)}.topbar .crumb{font-size:13px;color:var(--muted);font-weight:700}.topbar .user{border:1px solid var(--line);background:white;border-radius:999px;padding:7px 12px;font-size:12px;font-weight:700}.content{max-width:1120px;margin:auto;padding:36px 5.2% 80px}.eyebrow{color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.1em;text-transform:uppercase}.hero{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}.hero h1{font-size:clamp(28px,3vw,39px);letter-spacing:-.055em;line-height:1.25;margin:7px 0}.hero p{margin:0;color:var(--muted)}.hero-art{width:116px;height:92px;border-radius:24px;background:linear-gradient(130deg,#e5eeff,#d3f1e9);display:grid;place-items:center;font-size:48px;transform:rotate(-4deg);flex:none}.grid{display:grid;gap:18px}.cols2{grid-template-columns:repeat(2,minmax(0,1fr))}.cols3{grid-template-columns:repeat(3,minmax(0,1fr))}.card{background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:var(--shadow)}.card h2,.card h3{margin:0 0 9px;letter-spacing:-.03em}.card h2{font-size:19px}.card h3{font-size:16px}.muted{color:var(--muted)}.small{font-size:13px}.section-title{display:flex;align-items:center;justify-content:space-between;gap:14px;margin:28px 0 13px}.section-title h2{font-size:20px;margin:0;letter-spacing:-.03em}.pill{display:inline-flex;align-items:center;gap:5px;border-radius:999px;padding:5px 10px;background:var(--sky);color:#214eaa;font-size:12px;font-weight:700}.pill.green{background:var(--greenbg);color:var(--green)}.pill.amber{background:var(--amberbg);color:var(--amber)}.grade-list,.subject-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.select-card{border:1.5px solid var(--line);background:#fff;border-radius:14px;padding:17px;min-height:96px;text-align:left;transition:.18s}.select-card:hover{border-color:#94b5fa;transform:translateY(-2px)}.select-card.selected{border-color:var(--blue);background:#f1f6ff;box-shadow:inset 0 0 0 1px var(--blue)}.select-card strong{display:block;font-size:17px;margin-bottom:3px}.select-card span{font-size:12px;color:var(--muted)}.subject-list{grid-template-columns:repeat(3,1fr)}.subject-card{min-height:115px}.subject-card .icon{font-size:22px;margin-bottom:8px}.actions{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:24px;flex-wrap:wrap}.btn{border:1px solid var(--line);background:#fff;border-radius:11px;padding:11px 17px;font-weight:800;color:var(--navy)}.btn:hover{filter:brightness(.97)}.btn.primary{background:var(--blue);border-color:var(--blue);color:#fff}.btn.dark{background:var(--navy);border-color:var(--navy);color:#fff}.btn.ghost{background:transparent}.btn:disabled{opacity:.45;cursor:not-allowed}.notice{background:#edf6ff;border:1px solid #cde3ff;color:#285273;border-radius:12px;padding:13px 15px;font-size:13px}.stepbar{display:flex;gap:6px;margin:17px 0 25px}.stepbar i{height:7px;background:#e3eaf0;border-radius:9px;flex:1}.stepbar i.done{background:var(--blue)}.question-meta{display:flex;align-items:center;gap:8px;margin-bottom:14px}.question{font-size:22px;line-height:1.5;font-weight:800;letter-spacing:-.03em;margin:0 0 20px}.options{display:grid;gap:9px}.option{display:flex;align-items:center;gap:12px;border:1.5px solid var(--line);background:#fff;border-radius:11px;padding:13px 15px;text-align:left}.option:hover{border-color:#a6bff4}.option.chosen{border-color:var(--blue);background:#f1f6ff}.option.correct{border-color:var(--green);background:var(--greenbg)}.option.wrong{border-color:var(--red);background:#fff0f0}.option b{width:24px;height:24px;display:grid;place-items:center;border-radius:50%;background:#edf1f5;font-size:12px}.confidence{display:flex;gap:8px;flex-wrap:wrap}.confidence button{background:#fff;border:1px solid var(--line);border-radius:9px;padding:8px 12px;font-size:12px}.confidence button.active{background:var(--sky);border-color:var(--blue);color:var(--blue);font-weight:800}.explanation{margin-top:17px;padding:15px;border-radius:11px;background:var(--greenbg);font-size:14px}.field{display:grid;gap:7px;margin:16px 0}.field label{font-weight:800;font-size:14px}.field select,.field input{border:1px solid #cdd8e1;background:#fff;border-radius:10px;padding:11px 12px;min-width:0}.field input[type=range]{padding:0;accent-color:var(--blue)}.field-row{display:grid;grid-template-columns:1fr 1fr;gap:15px}.range-line{display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:12px}.metric{font-size:32px;font-weight:850;letter-spacing:-.05em}.metric-sub{font-size:12px;color:var(--muted)}.progress{height:9px;border-radius:8px;background:#e7edf2;overflow:hidden;margin:8px 0}.progress i{display:block;height:100%;background:var(--blue);border-radius:8px}.subject-result{display:grid;grid-template-columns:130px 1fr auto;align-items:center;gap:17px;padding:15px 0;border-top:1px solid var(--line)}.subject-result:first-child{border-top:0}.subject-result .name{font-weight:800}.subject-result .score{font-weight:800;font-size:18px}.mini-list{margin:7px 0 0;padding-left:18px;color:var(--muted);font-size:13px}.mini-list li{margin:4px 0}.recommendation{border:1px solid var(--line);border-radius:12px;padding:16px;margin:10px 0;background:#fff}.recommendation h4{margin:5px 0 5px;font-size:15px}.recommendation p{margin:0;color:var(--muted);font-size:13px}.recommendation .tag{font-size:11px;color:var(--blue);font-weight:800}.schedule-row{display:grid;grid-template-columns:105px 1fr 95px;gap:14px;align-items:center;border-top:1px solid var(--line);padding:13px 0}.schedule-row:first-child{border-top:0}.schedule-row input{width:100%;border:1px solid var(--line);border-radius:8px;padding:8px;text-align:center}.day-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:9px}.day{border:1px solid var(--line);background:#fff;border-radius:11px;padding:12px;min-height:110px}.day strong{display:block;font-size:12px;margin-bottom:8px}.task-chip{display:block;font-size:11px;border-radius:7px;background:var(--sky);padding:6px 7px;margin:5px 0}.task-chip:nth-of-type(even){background:var(--greenbg)}.empty{padding:30px;text-align:center;color:var(--muted)}.footer{margin-top:28px;color:#8a9aa8;font-size:11px}.top-actions{display:flex;gap:8px;flex-wrap:wrap}.mobile-nav{display:none}.error{color:var(--red);font-size:13px;font-weight:700;margin-top:8px}
@media(max-width:1000px){.shell{grid-template-columns:72px 1fr}.sidebar{padding:20px 9px}.brand{font-size:0;padding:3px 9px 24px}.nav button{font-size:0;justify-content:center;padding:12px 4px}.nav .num{font-size:12px}.sidebar-note{display:none}.day-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:700px){.shell{display:block}.sidebar{display:none}.topbar{height:60px;padding:0 18px}.content{padding:27px 18px 100px}.hero-art{display:none}.cols2,.cols3,.grade-list,.subject-list{grid-template-columns:1fr}.grade-list{grid-template-columns:repeat(3,1fr)}.grade-list .select-card{min-height:86px;padding:12px}.subject-list{grid-template-columns:repeat(2,1fr)}.subject-card{min-height:105px}.card{padding:19px}.question{font-size:19px}.subject-result{grid-template-columns:95px 1fr 40px;gap:10px}.field-row{grid-template-columns:1fr}.day-grid{grid-template-columns:repeat(2,1fr)}.mobile-nav{display:grid;grid-template-columns:repeat(5,1fr);position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:1px solid var(--line);z-index:10;padding-bottom:env(safe-area-inset-bottom)}.mobile-nav button{border:0;background:#fff;padding:9px 2px 7px;color:var(--muted);font-size:10px;display:grid;gap:1px}.mobile-nav button.active{color:var(--blue);font-weight:800}.mobile-nav .ico{font-size:18px}.schedule-row{grid-template-columns:75px 1fr 75px;gap:8px}.topbar .user{display:none}}
.resource-field{grid-template-columns:auto 130px;align-items:center;margin:15px 0 0;padding-top:13px;border-top:1px solid var(--line)}.resource-field label{font-size:12px;color:var(--muted)}.resource-field select{padding:7px 9px;font-size:12px}
.official-link{display:inline-block;text-decoration:none;margin-top:6px}.official-check{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:700;margin-top:15px}.official-check input{accent-color:var(--blue)}.year-grid{display:grid;grid-template-columns:repeat(8,1fr);gap:8px;margin-top:16px}.year-grid a{padding:8px 4px;border:1px solid var(--line);border-radius:8px;text-align:center;text-decoration:none;font-size:12px;font-weight:800;color:var(--blue)}.year-grid a:hover{background:var(--sky)}.official-session{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 0;border-top:1px solid var(--line)}.official-session:first-child{border-top:0}.tag-list{display:grid;gap:8px;margin-top:16px}.tag-row{display:grid;grid-template-columns:85px 1fr 1fr;gap:9px;align-items:center;border:1px solid var(--line);border-radius:10px;padding:10px}.tag-row select{min-width:0;border:1px solid #cdd8e1;border-radius:8px;background:white;padding:8px;font-size:12px}
@media(max-width:700px){.year-grid{grid-template-columns:repeat(4,1fr)}.tag-row{grid-template-columns:1fr 1fr}.tag-row strong{grid-column:1/-1}.official-session{align-items:flex-start}.official-session .btn{padding:7px 10px;font-size:12px}}