.reading-hub-page{padding:24px 32px}.reading-hub{max-width:1180px;margin:0 auto;color:var(--text)}.rh-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin:0 0 20px}.rh-heading-title{display:flex;align-items:center;gap:8px;position:relative}.rh-heading h1{font-size:22px;margin:0;font-weight:750}.rh-view-tabs{display:flex;gap:8px;font-size:13px}.rh-view-tabs a{padding:8px 14px;border-radius:10px;color:var(--text-3);text-decoration:none}.rh-view-tabs a[aria-current]{color:var(--primary-strong);background:var(--primary-soft)}.rh-filters{margin-bottom:22px}.rh-filters .filter-row{flex-wrap:wrap}.rh-search{margin-left:auto;position:relative}.rh-search summary{cursor:pointer;list-style:none;display:grid;place-items:center;width:36px;height:36px;color:var(--text-3)}.rh-search summary::-webkit-details-marker{display:none}.rh-search form{position:absolute;right:0;top:40px;z-index:4;display:flex;gap:8px;align-items:center;padding:12px;background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow-md);border-radius:12px;width:min(380px,calc(100vw - 50px))}.rh-search input{min-width:0;flex:1;border:1px solid var(--border);border-radius:8px;padding:10px;font:inherit;font-size:13px;background:var(--surface);color:var(--text)}.rh-button{display:inline-flex;gap:8px;align-items:center;justify-content:center;min-height:44px;padding:10px 20px;background:var(--gradient,linear-gradient(135deg,#6366f1,#7c3aed));color:#fff;border:0;border-radius:12px;font:inherit;font-size:14px;text-decoration:none;white-space:nowrap;cursor:pointer}.rh-button:hover{color:#fff;text-decoration:none;box-shadow:var(--shadow-md)}
.rh-resume{display:flex;align-items:center;gap:14px;background:var(--gradient,linear-gradient(135deg,#6366f1,#7c3aed));color:white;padding:14px 18px;border-radius:16px;text-decoration:none;margin-bottom:18px}.rh-resume:hover{color:white;text-decoration:none}.rh-resume-icon{display:grid;place-items:center;width:44px;height:44px;border-radius:13px;background:#ffffff30;flex-shrink:0}.rh-resume b{font-size:15px}.rh-resume small{font-size:12px;margin-left:10px;opacity:.95}.rh-resume-go{margin-left:auto;white-space:nowrap;padding:8px 14px;border-radius:99px;background:white;color:var(--primary-strong);font-size:13px;font-weight:600}
.rh-books{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px}.rh-book-card{display:flex;align-items:center;gap:12px;padding:10px;background:var(--surface);border:1px solid var(--border);border-radius:16px;color:inherit;text-decoration:none;min-width:0;transition:transform .2s,box-shadow .2s}.rh-book-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);text-decoration:none;color:inherit;border-color:var(--primary-soft-2)}.rh-book-cover{width:96px;height:136px;border-radius:10px;overflow:hidden;flex-shrink:0;display:grid;place-items:center;background:var(--gradient);color:white}.rh-book-cover img{width:100%;height:100%;object-fit:cover}.rh-book-cover svg{width:36px;height:36px}.rh-cover-1{background:linear-gradient(135deg,#8b5cf6,#d946ef)}.rh-cover-2{background:linear-gradient(135deg,#f59e0b,#ef4444)}.rh-book-info{min-width:0;padding-right:6px}.rh-book-info h2{font-size:15px;font-weight:650;line-height:1.4;margin:0 0 5px;overflow-wrap:anywhere}.rh-english{font-size:12px;color:var(--text-4,#94a3b8);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin:0 0 8px}.rh-meta{display:flex;gap:12px;flex-wrap:wrap;font-size:12.5px;color:var(--text-3);margin:8px 0}.rh-progress-tag{display:inline-block;font-size:11px;color:var(--primary-strong);background:var(--primary-soft);padding:4px 8px;border-radius:99px}.rh-back{display:inline-flex;gap:6px;align-items:center;padding:6px 12px;border:1px solid var(--border-strong,var(--border));background:var(--surface);border-radius:8px;font-size:13px;color:var(--text-2);text-decoration:none;margin-bottom:14px}
.rh-book-hero{display:flex;gap:26px;padding:22px;border:1px solid var(--border);border-radius:22px;background:var(--surface);box-shadow:0 8px 28px #2327460f}.rh-hero-cover{width:138px;height:195px;border-radius:16px;overflow:hidden;flex-shrink:0;background:var(--gradient);display:grid;place-items:center;color:white;box-shadow:0 12px 26px #262a481f}.rh-hero-cover img{width:100%;height:100%;object-fit:cover}.rh-hero-cover svg{width:54px;height:54px}.rh-hero-body{flex:1;min-width:0}.rh-hero-top{display:flex;justify-content:space-between;align-items:start;gap:24px}.rh-eyebrow{font-size:12px;font-weight:700;color:var(--primary-strong);margin:2px 0 8px}.rh-hero-top h1{font-size:clamp(23px,2.2vw,30px);font-weight:720;line-height:1.3;margin:0;overflow-wrap:anywhere}.rh-description{display:flex;align-items:center;gap:8px;font-size:14px;line-height:1.7;color:var(--text-2);position:relative;margin:6px 0 10px}.rh-book-hero progress{display:block;appearance:none;width:100%;height:7px;border:0;background:var(--primary-soft);border-radius:99px;overflow:hidden}.rh-book-hero progress::-webkit-progress-bar{background:var(--primary-soft)}.rh-book-hero progress::-webkit-progress-value{background:var(--gradient)}.rh-book-hero progress::-moz-progress-bar{background:var(--primary)}.rh-progress-label{display:flex;justify-content:space-between;font-size:12px;color:var(--text-3);gap:12px;margin-top:8px}.rh-progress-label b{color:var(--text-2)}.rh-recent-line{font-size:12px;color:var(--text-3);margin:10px 0 0}
.rh-section-head{display:flex;align-items:center;justify-content:space-between;gap:18px;margin:28px 0 18px}.rh-section-head h2{font-size:19px;margin:0;white-space:nowrap}.rh-section-head h2 small{font-size:12px;font-weight:400;background:var(--surface);color:var(--text-3);border-radius:99px;margin-left:8px;padding:6px 9px}.rh-section-head nav{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.rh-chip{border:1px solid var(--border);background:var(--surface);border-radius:99px;padding:6px 12px;color:var(--text-2);font-size:13px;text-decoration:none}.rh-chip.is-active{background:var(--primary-soft);color:var(--primary-strong);border-color:var(--primary-soft-2)}.rh-separator{width:8px}.rh-units{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.rh-unit{position:relative;min-height:140px;padding:20px;border:1px solid var(--border);border-radius:18px;background:var(--surface);color:inherit;text-decoration:none;display:flex;flex-direction:column}.rh-unit:hover{text-decoration:none;color:inherit;border-color:var(--primary-soft-2);box-shadow:var(--shadow-md)}.rh-unit.is-recent{border-color:var(--primary-soft-2);box-shadow:0 0 0 1px var(--primary-soft-2)}.rh-unit h3{font-size:15px;margin:0 20px 15px 0;line-height:1.5;overflow-wrap:anywhere}.rh-unit.is-recent h3{color:var(--primary-strong)}.rh-unit p{font-size:12px;color:var(--text-3);margin:0 0 15px}.rh-unit-index{position:absolute;right:16px;top:14px;font-size:13px;color:var(--text-3);font-weight:600}.rh-unit-recent{display:block;margin-top:auto;border-radius:99px;background:var(--primary-soft);color:var(--primary-strong);font-size:12px;padding:4px 10px}
.rh-hint summary{display:grid;place-items:center;width:25px;height:25px;list-style:none;font-size:12px;font-weight:700;color:var(--text-3);cursor:help;border-radius:50%;border:1px solid var(--border)}.rh-hint summary::-webkit-details-marker{display:none}.rh-hint>div{position:absolute;left:0;top:100%;z-index:5;width:min(330px,calc(100vw - 52px));background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow-md);border-radius:12px;padding:16px;font-size:13px;line-height:1.8;color:var(--text-2)}.rh-hint:not([open])>div{display:none}.rh-empty{text-align:center;padding:48px 20px;color:var(--text-3);font-size:14px}.rh-empty h2{font-size:20px}.rh-pagination{display:flex;justify-content:center;gap:24px;margin:24px 0;font-size:13px}.reading-hub :focus-visible{outline:3px solid var(--primary);outline-offset:3px}
@media(max-width:950px){.rh-units{grid-template-columns:repeat(2,minmax(0,1fr))}.rh-resume small{display:block;margin:4px 0 0}}@media(max-width:700px){.reading-hub-page{padding:20px 16px}.rh-heading{gap:12px;flex-wrap:wrap}.rh-heading h1{font-size:22px}.rh-view-tabs a{padding:6px 10px}.rh-books{grid-template-columns:1fr}.rh-resume-go{display:none}.rh-book-hero{gap:16px;padding:18px;flex-wrap:wrap}.rh-hero-cover{width:80px;height:114px;border-radius:10px}.rh-hero-body{flex-basis:calc(100% - 100px)}.rh-hero-top{display:block}.rh-hero-top h1{font-size:23px}.rh-hero-top .rh-button{margin-top:12px;min-height:38px;font-size:13px;padding:8px 12px}.rh-description{font-size:12px}.rh-section-head{align-items:start;flex-direction:column;gap:14px}.rh-section-head nav{gap:6px}.rh-chip{font-size:12px;padding:8px 10px}.rh-unit{padding:16px;min-height:136px}.rh-unit h3{font-size:14px}.rh-unit-index{right:10px}.rh-recent-line{line-height:1.8}}
@media(prefers-reduced-motion:reduce){.rh-book-card{transition:none}}
/* Match the existing course list filters without loading unrelated dialogs. */
.rh-filters .filter-row{display:flex;align-items:center;gap:8px;padding:4px 0 8px;flex-wrap:wrap}.rh-filters .filter-row--main{justify-content:space-between;gap:12px;padding-bottom:0}.rh-filters .filter-tabs{display:flex;flex-wrap:wrap;gap:8px;min-width:0;flex:1}.rh-filters .tab-l1{padding:8px 14px;border-radius:var(--r-md);font-size:14px;font-weight:550;color:var(--text-2);border:1px solid transparent;text-decoration:none}.rh-filters .tab-l1:hover{background:var(--surface-2);color:var(--text)}.rh-filters .tab-l1.is-active{background:var(--primary-soft);color:var(--primary-strong);border-color:var(--primary-soft-2)}.rh-filters .tab-l2{padding:6px 14px;border-radius:var(--r-pill);font-size:13px;color:var(--text-2);text-decoration:none}.rh-filters .tab-l2:hover{color:var(--primary-strong)}.rh-filters .tab-l2.is-active{background:var(--gradient);color:#fff}