/* Popular resource directories: existing Laowai paper, level colors and compact cells. */
.popular-hsk,.grammar-directory{--resource-gap:16px;--resource-sage:#e8edda;--resource-honey:#f4e4c3;--resource-blue:#e0ebf1;--resource-pink:#f2e2e5}
:is(.popular-hsk,.grammar-directory) ::selection{background:#dce6b8;color:#24332c}
:is(.popular-hsk,.grammar-directory) :is(input,select){caret-color:#244c3b}
:is(.popular-hsk,.grammar-directory) input::placeholder{color:#5e6258;opacity:1}
:is(.popular-hsk,.grammar-directory) :is(a,button,summary){text-underline-offset:4px}
:is(.popular-hsk,.grammar-directory) main>.index-hero{display:block!important;padding-block:20px 16px!important;margin-block:0 12px!important}
:is(.popular-hsk,.grammar-directory) .index-hero h1{font-size:clamp(2rem,4vw,3rem);line-height:1.12;letter-spacing:-.025em;margin:0 0 12px}
:is(.popular-hsk,.grammar-directory) .index-hero p{max-width:65ch;margin:8px 0;font-size:1rem;line-height:1.55}
:is(.popular-hsk,.grammar-directory) .breadcrumb{margin-bottom:8px}
.popular-hsk .hsk-editions{margin:0 0 16px;gap:8px;align-items:center}
.popular-hsk .hsk-editions a{min-height:44px;padding:10px 14px;border-radius:12px;display:inline-flex;align-items:center;gap:8px}
.popular-hsk .hsk-editions a[aria-current]{background:#244c3b;color:#fff;border-color:#244c3b}
.popular-hsk .hsk-editions a:last-child{margin-left:auto;border-color:transparent;font-size:.875rem}
.popular-hsk .hsk-level-section{margin-block:16px 40px;padding-top:0}
.popular-hsk .resource-section-heading{margin-bottom:16px;align-items:baseline}
.popular-hsk .resource-section-heading h2{margin:0;font-size:1.45rem}
.popular-hsk .hsk-level-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:16px 0 24px}
.popular-hsk .hsk-level-card{position:relative;display:grid;gap:8px;min-height:132px;padding:20px;border:0;border-radius:16px;background:linear-gradient(115deg,#faf8f1,var(--level-tint,#e8edda));color:#24332c;text-decoration:none}
.popular-hsk .hsk-level-card:is(:hover,:focus-visible){background:var(--level-tint,#e8edda)}
.popular-hsk .hsk-level-card h3{margin:0;font:600 1.35rem/1.2 var(--font-body)}
.popular-hsk .hsk-level-card .hsk-card-count{margin:0;display:block;font:600 .95rem/1.4 var(--font-body)}
.popular-hsk .hsk-card-count span{font-size:.875rem;font-weight:400;color:#394b40}
.popular-hsk .hsk-card-link{display:flex;align-items:center;gap:8px;font-size:.875rem;font-weight:600;margin-top:0;padding-top:0;color:#244c3b}
.popular-hsk .hsk-card-link svg{width:18px;height:18px;margin-left:auto;flex:none}
.popular-hsk [data-resource-level="1"],.grammar-directory [data-resource-level="beginner"]{--level-tint:var(--resource-sage)}
.popular-hsk [data-resource-level="2"],.grammar-directory [data-resource-level="elementary"]{--level-tint:var(--resource-honey)}
.popular-hsk [data-resource-level="3"],.grammar-directory [data-resource-level="intermediate"]{--level-tint:var(--resource-blue)}
.popular-hsk [data-resource-level="4"],.grammar-directory [data-resource-level="upper-intermediate"]{--level-tint:var(--resource-pink)}
.popular-hsk [data-resource-level="5"],.grammar-directory [data-resource-level="advanced"]{--level-tint:#e7e3ef}
.popular-hsk [data-resource-level="6"]{--level-tint:#eddfd4}
.popular-hsk [data-resource-level="7-9"]{--level-tint:#d7e5dc}
.popular-hsk .hsk-tool-links{display:flex;flex-wrap:wrap;gap:8px 20px;margin:24px 0}
.popular-hsk .hsk-tool-links a{display:inline-flex;align-items:center;min-height:44px;padding-block:10px}
.popular-hsk .hsk-level-nav{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 20px}
.popular-hsk .hsk-level-nav a{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:8px 12px;border-radius:10px}
.popular-hsk .hsk-level-actions{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0 24px;align-items:center}
.popular-hsk .hsk-level-actions a{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:12px 16px;line-height:1.35;text-align:center}
.popular-hsk .resource-actions{gap:10px;margin-top:16px}
.popular-hsk .hsk-source-notes{margin-block:16px}
.popular-hsk .hsk-source-notes summary{min-height:44px;padding-block:12px}
.popular-hsk .hsk-download-heading{gap:16px;align-items:center}
.popular-hsk .hsk-app-bridge{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-block:16px}
.popular-hsk .hsk-app-bridge .paper-link{display:inline-flex;gap:8px;align-items:center;min-height:44px}
.popular-hsk .hsk-app-bridge .official-app-store-badge{display:none}
.popular-hsk .hsk-list-tools [data-hsk-workshop-toggle]{min-height:44px}
.popular-hsk .selection-bar .hsk-practice-quick:disabled{background:#e4e6dd;color:#4d5d50;border-color:#c9c4b6;opacity:1;cursor:default}
.popular-hsk dialog[aria-labelledby=hsk-sense-title]{padding:24px;border:0;border-radius:16px;background:#faf8f1;color:#24332c;box-shadow:0 16px 48px rgba(25,44,37,.2)}
.popular-hsk dialog[aria-labelledby=hsk-sense-title]::backdrop{background:rgba(25,44,37,.32)}
.popular-hsk #hsk-sense-title{font:600 1.5rem/1.25 var(--font-body)!important;margin:0 0 12px}
.popular-hsk dialog[aria-labelledby=hsk-sense-title] form>p{font-size:1rem;line-height:1.5;margin:0 0 20px;max-width:65ch}
.popular-hsk dialog[aria-labelledby=hsk-sense-title] fieldset{margin:20px 0;padding:12px;border:1px solid #c9c4b6;border-radius:12px;min-width:0}
.popular-hsk dialog[aria-labelledby=hsk-sense-title] legend{padding:0 6px;font-weight:600}
.popular-hsk dialog[aria-labelledby=hsk-sense-title] label{display:flex!important;align-items:flex-start;gap:10px;min-height:44px;padding:10px 0;font-size:.95rem;line-height:1.5}
.popular-hsk dialog[aria-labelledby=hsk-sense-title] input[type=radio]{flex:none;width:18px;height:18px;margin:3px 0 0;accent-color:#244c3b}
.popular-hsk dialog[aria-labelledby=hsk-sense-title] form>button{display:block;width:100%;min-height:44px;padding:12px 16px;margin-top:8px;font:600 .875rem/1.4 var(--font-body);border:1px solid #c9c4b6;border-radius:12px;color:#244c3b;background:transparent;cursor:pointer}
.popular-hsk dialog[aria-labelledby=hsk-sense-title] form>button[type=submit]{background:#244c3b;border-color:#244c3b;color:#fff}
.grammar-directory .grammar-index-hero{padding-bottom:16px}
.grammar-directory .library-toolbar{display:grid;grid-template-columns:minmax(0,1fr) minmax(180px,280px);gap:12px;align-items:end;margin:0;padding:0;border:0}
.grammar-directory .library-toolbar label{min-width:0}
.grammar-directory .library-toolbar label[hidden]{display:none}
.grammar-directory .library-toolbar :is(input,select){width:100%;min-height:48px;font:inherit;line-height:1.4;padding:12px 14px;background:#faf8f1;border:1px solid #c9c4b6;color:#24332c;border-radius:12px}
.grammar-directory .field-label{display:block;font-size:.875rem;margin-bottom:8px;color:#394b40}
.grammar-directory .grammar-quick-levels{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:16px 0 12px}
.grammar-directory .grammar-quick-levels[hidden],.grammar-directory .grammar-reset[hidden]{display:none}
.grammar-directory .grammar-quick-levels button{display:inline-flex;align-items:center;gap:8px;font:inherit;font-size:.875rem;line-height:1.35;min-height:44px;padding:10px 14px;border:1px solid #c9c4b6;border-radius:12px;color:#24332c;background:var(--level-tint,#faf8f1);cursor:pointer}
.grammar-directory .grammar-quick-levels button[aria-pressed=true]{background:#244c3b;border-color:#244c3b;color:#fff}
.grammar-directory .grammar-filter-footer{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px;margin:8px 0 16px}
.grammar-directory #grammar-result-count{font-size:.875rem;line-height:1.5;margin:0;max-width:65ch;color:#394b40}
.grammar-directory .grammar-reset{background:transparent;border:0;min-height:44px;padding:8px 0;font:inherit;font-size:.875rem;color:#244c3b;text-decoration:underline;text-underline-offset:4px;cursor:pointer}
.grammar-directory .grammar-directory-grid{display:grid;grid-template-columns:1fr;gap:8px;margin:0 0 24px}
.grammar-directory .grammar-directory-card{display:grid;grid-template-columns:150px minmax(0,1fr) 180px;gap:8px 24px;align-items:center;padding:18px 20px;border:0;border-radius:16px;background:linear-gradient(110deg,#faf8f1 30%,var(--level-tint,#e8edda))!important;color:#24332c;transform:none;transition:background-color .15s ease}
.grammar-directory .grammar-directory-card:hover{transform:none;background:var(--level-tint,#e8edda)!important}
.grammar-directory .grammar-card-form{grid-column:1;grid-row:1/3;display:flex;flex-direction:column;gap:6px;margin:0;align-items:flex-start}
.grammar-directory .grammar-card-form [lang=zh-Hans]{font-size:1.65rem;line-height:1.25}
.grammar-directory .grammar-card-form [lang=zh-Latn]{font-size:.875rem;opacity:1;color:#394b40}
.grammar-directory .grammar-directory-card h2{grid-column:2;grid-row:1;font:600 1rem/1.4 var(--font-body)!important;letter-spacing:0;text-wrap:pretty}
.grammar-directory .grammar-card-description{grid-column:2;grid-row:2;color:#394b40;font-size:.875rem;line-height:1.5;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.grammar-directory .grammar-card-meta{grid-column:3;grid-row:1/3;display:flex;flex-direction:column;align-items:flex-start;gap:6px;margin:0;padding:0;opacity:1;font-size:.8rem;line-height:1.5;color:#394b40}
.grammar-directory .grammar-card-level{font-weight:600;color:#244c3b}
.grammar-directory .grammar-essentials{margin:32px 0}
.grammar-directory .grammar-essential-grid{gap:10px}
.grammar-directory .grammar-essential-grid a{padding:16px;min-height:88px}
.grammar-directory .grammar-browse-topics{margin:24px 0}
.grammar-directory .grammar-browse-topics summary{min-height:44px;padding-block:12px}
.popular-hsk .hsk-change-level summary{min-height:44px;padding-block:12px;cursor:pointer}
@media(max-width:760px){
 .popular-hsk .hsk-level-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .popular-hsk .hsk-level-card{padding:16px;min-height:132px}
 .popular-hsk .hsk-editions a:last-child{margin-left:0}
 .grammar-directory .grammar-directory-card{grid-template-columns:96px minmax(0,1fr);gap:6px 16px;padding:16px}
 .grammar-directory .grammar-card-form{grid-row:1/4}
 .grammar-directory .grammar-card-meta{grid-column:2;grid-row:3;flex-direction:row;flex-wrap:wrap;gap:4px 12px}
 .grammar-directory .grammar-card-description{font-size:.875rem}
}
@media(max-width:480px){
 :is(.popular-hsk,.grammar-directory) main>.index-hero{padding-block:16px 12px!important;margin-bottom:8px!important}
 :is(.popular-hsk,.grammar-directory) main>.index-hero h1{font-size:2rem!important}
 .popular-hsk .hsk-editions a{flex-wrap:wrap;gap:2px 6px;padding:10px 12px}
 .popular-hsk .hsk-editions a span{font-size:.75rem}
 .popular-hsk .hsk-editions a:last-child{flex-basis:100%;justify-content:flex-start;min-height:36px;padding:6px 0}
 .popular-hsk .hsk-level-actions{display:grid;grid-template-columns:1fr 1fr}
 .popular-hsk .hsk-level-actions a{padding:12px;font-size:.875rem}
 .popular-hsk .hsk-card-link{font-size:.8rem}
 .popular-hsk .hsk-card-count{font-size:.95rem}
 .grammar-directory .library-toolbar{grid-template-columns:1fr}
 .grammar-directory .library-toolbar .field-label{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
 .grammar-directory .grammar-quick-levels{gap:6px}
 .grammar-directory .grammar-quick-levels button{padding:10px 12px;font-size:.8rem}
 .grammar-directory .grammar-directory-card{grid-template-columns:72px minmax(0,1fr);gap:6px 12px;padding:16px 12px}
 .grammar-directory .grammar-card-form [lang=zh-Hans]{font-size:1.4rem}
 .grammar-directory .grammar-card-form [lang=zh-Latn]{font-size:.8rem}
 .grammar-directory .grammar-card-meta{font-size:.75rem}
}
@media(prefers-reduced-motion:reduce){.grammar-directory .grammar-directory-card{transition:none}}