/* Responsive overrides and functional components, loaded last. */
.nav{overflow:visible;gap:10px}.nav-links{overflow:visible;gap:1px}.nav-links a:last-child{display:inline-flex}.nav-links a{padding:9px 6px;font-size:11px}.brand{min-width:160px;flex:none}.search{max-width:180px;flex:1 1 120px}.user{flex:none}
button:disabled{opacity:.55;cursor:not-allowed}.field input[type=checkbox],.field input[type=radio]{width:auto}.check-field{display:flex;gap:10px;align-items:center;margin:12px 0}.check-field input{width:18px;height:18px}
.filter-row{display:flex;gap:12px;flex-wrap:wrap;align-items:end}.filter-row .field{flex:1;min-width:150px;margin:0}.answer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.answer{justify-content:start;gap:12px;text-align:left;min-height:58px}.answer:has(input:checked){background:#e8f2ff;outline:2px solid #1769f5}.answer input{width:18px;height:18px;flex:none}.answer-grid>input{width:100%;padding:14px;border:1px solid #c4d7eb;border-radius:12px}
.practice-actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:space-between;margin-top:24px}.question-nav{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin:20px 0}.question-nav button{justify-content:center;cursor:pointer;border:0}.question-nav .current{background:#1769f5;color:#fff}.timer{display:block;font-size:28px;margin:10px 0}.history-item{display:block;text-align:left;background:#eff7ff;padding:10px;width:100%;border:0;border-radius:8px;margin:8px 0;cursor:pointer}
.sudoku-grid{display:grid;grid-template-columns:repeat(9,minmax(0,1fr));max-width:460px;margin:20px auto;border:2px solid #244d79}.sudoku-grid input{width:100%;aspect-ratio:1;border:1px solid #b5cce5;text-align:center;font-size:19px;border-radius:0}.sudoku-grid input:disabled{background:#e6eff8;color:#193b65;font-weight:bold}.sudoku-grid input:nth-child(3n){border-right:2px solid #244d79}.sudoku-grid input:nth-child(n+19):nth-child(-n+27),.sudoku-grid input:nth-child(n+46):nth-child(-n+54){border-bottom:2px solid #244d79}
.maze-grid{display:grid;grid-template-columns:repeat(5,48px);gap:4px;justify-content:center;margin:20px auto}.maze-cell{width:48px;height:48px;display:grid;place-items:center;border-radius:5px;background:#e6f2ff}.maze-cell.wall{background:#243d59}.maze-cell.player{background:#1fbb87;color:#fff}.maze-cell.goal{background:#ffd36c;color:#815800}.maze-controls{display:flex;justify-content:center;gap:12px;margin:18px}.maze-controls button{padding:12px 18px;border-radius:10px;border:1px solid #aac9ea}
.admin-main{min-width:0}.table-wrap{overflow-x:auto}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.admin-actions{display:flex;gap:8px;flex-wrap:wrap}.article-body{white-space:pre-wrap;line-height:1.8}.bookmark-list{display:grid;gap:12px}.notification-row{padding:12px;border-bottom:1px solid #e5edf8}.notification-row.unread{background:#eaf4ff}
.three-stage{touch-action:none}.model-label{color:#fff;pointer-events:none}.error[hidden]{display:none!important}.footer-links{display:flex;gap:16px}
.simulation-card-art{height:150px;border-radius:14px;display:grid;place-items:center;overflow:hidden;background:radial-gradient(circle at 35% 28%,#2fd8ff,#124d88 52%,#061629);box-shadow:inset 0 0 30px #49d4ff44}.simulation-card-art span{font-size:82px;line-height:1;color:#9cecff;text-shadow:0 0 18px #46d7ff;transform:translateY(-2px)}.simulation-card-art-2{background:radial-gradient(circle at 45% 32%,#9a83ff,#31206f 55%,#110d31)}.simulation-card-art-3{background:radial-gradient(circle at 55% 25%,#57e5c1,#126f70 55%,#062c3a)}.simulation-card-art-4{background:radial-gradient(circle at 38% 28%,#fff4c1,#9b5fce 42%,#27164e)}.simulation-card-art-5{background:radial-gradient(circle at 50% 35%,#ffc17e,#a74459 48%,#271838)}.simulation-card-art-6{background:radial-gradient(circle at 50% 30%,#a3d8ff,#3c4eaf 48%,#111a4e)}
.app-card{display:flex;flex-direction:column}.app-icon{font-size:42px;margin-bottom:5px}.app-inputs{display:grid;gap:8px;margin:10px 0}.app-inputs label{font-size:12px;color:#496783}.app-inputs input{display:block;width:100%;margin-top:4px}.app-result{min-height:42px;font-weight:700;color:#1769f5;margin:12px 0 0}
@media(max-width:1250px){.nav-links{display:none}.mobile-menu{display:block;background:transparent;border:0;color:inherit}.nav{position:relative}.search{margin-left:auto}.nav-links.mobile-open{overflow:visible;z-index:50;top:58px}.nav-links.mobile-open a:last-child{display:flex}}
@media(max-width:800px){.nav{gap:10px}.brand{min-width:0}.search{display:none}.user span{display:none}.user .avatar{display:grid}.answer-grid,.form-grid{grid-template-columns:1fr}.admin-sidebar{display:flex;gap:6px;flex-wrap:wrap;padding:10px}.admin-sidebar a{padding:8px;font-size:12px;margin:0}.admin-sidebar .brand{display:none}.admin-top{flex-wrap:wrap;gap:12px}.section-head{flex-wrap:wrap;gap:10px}.tabs{overflow:auto;white-space:nowrap}.footer-links{flex-wrap:wrap}.formula{font-size:22px}.lesson-video .card{min-height:100%;padding:20px}.hero h1{font-size:32px!important}}