:root{
  --ink:#10283a;
  --ink-2:#17384d;
  --green:#1f5a50;
  --green-soft:#e5efec;
  --copper:#bd8d52;
  --copper-dark:#8b6030;
  --ivory:#f4f0e8;
  --paper:#fffdfa;
  --white:#fff;
  --text:#1d2b34;
  --muted:#66737d;
  --line:#d9d9d3;
  --danger:#9a3535;
  --success:#246b4b;
  --shadow:0 16px 45px rgba(16,40,58,.10);
  --radius:18px;
  --sidebar:278px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--ivory);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.55}
a{color:inherit}
button,input,select{font:inherit}
button{cursor:pointer}
[hidden]{display:none!important}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:fixed;left:1rem;top:-100px;z-index:9999;background:#fff;padding:.75rem 1rem;border-radius:10px}.skip-link:focus{top:1rem}
.prototype-banner{height:34px;display:flex;align-items:center;justify-content:center;gap:.7rem;background:#e6cf9e;color:#3d2b13;font-size:.78rem;letter-spacing:.015em;padding:0 1rem;text-align:center}
.app-shell{display:grid;grid-template-columns:var(--sidebar) 1fr;min-height:calc(100vh - 34px)}
.sidebar{position:sticky;top:0;height:calc(100vh - 34px);background:var(--ink);color:#eef4f5;padding:1.35rem 1rem;display:flex;flex-direction:column;z-index:30;overflow-y:auto}
.brand-wrap{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.55rem}.brand{display:flex;align-items:center;gap:.8rem;text-decoration:none}.brand-mark{width:48px;height:48px;border-radius:15px;display:grid;place-items:center;background:linear-gradient(145deg,var(--copper),#d2aa70);color:var(--ink);font-weight:900;letter-spacing:-.05em}.brand strong{display:block;font-family:Georgia,serif;font-size:1.26rem}.brand small{display:block;color:#aebfc8;font-size:.67rem;margin-top:.1rem}.sidebar-close{display:none;background:transparent;border:0;color:#fff;font-size:1.8rem}
.side-nav{display:grid;gap:.35rem}.side-nav a{display:flex;align-items:center;gap:.8rem;padding:.72rem .84rem;border-radius:11px;text-decoration:none;color:#c6d3da;font-size:.93rem}.side-nav a span{width:1.2rem;text-align:center;color:#d7b47d}.side-nav a:hover,.side-nav a.active{background:rgba(255,255,255,.09);color:#fff}.side-nav a.active{box-shadow:inset 3px 0 0 var(--copper)}
.collection-progress{margin-top:2rem;padding:1rem;border:1px solid rgba(255,255,255,.12);border-radius:15px;background:rgba(255,255,255,.045)}.section-label{text-transform:uppercase;letter-spacing:.08em;font-size:.67rem;color:#d7b47d;font-weight:800}.progress-row{display:flex;justify-content:space-between;gap:1rem;font-size:.78rem;margin:.75rem 0 .45rem;color:#c6d3da}.progress-track{height:7px;background:rgba(255,255,255,.12);border-radius:99px;overflow:hidden}.progress-track span{display:block;height:100%;width:0;background:var(--copper);border-radius:99px;transition:width .3s ease}.sidebar-footer{margin-top:auto;padding-top:1.5rem;display:grid;gap:.3rem}.text-button{border:0;background:transparent;color:#d7b47d;text-align:left;padding:0;font-size:.8rem}.sidebar-footer small{color:#82949e;font-size:.68rem}
.main-column{min-width:0}.topbar{position:sticky;top:0;z-index:20;height:72px;background:rgba(255,253,250,.94);backdrop-filter:blur(15px);border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 clamp(1rem,3vw,2.25rem);gap:1rem}.menu-button{display:none;border:0;background:transparent;font-size:1.4rem;color:var(--ink)}.top-search{flex:1;max-width:710px;display:flex;align-items:center;gap:.65rem;background:#f0eee9;border:1px solid transparent;border-radius:13px;padding:.62rem .85rem}.top-search:focus-within{border-color:var(--copper);background:#fff}.top-search input{width:100%;border:0;outline:0;background:transparent;color:var(--text)}.top-search kbd{font-size:.68rem;border:1px solid #c6c8c7;border-radius:5px;padding:.15rem .35rem;color:var(--muted);background:#fff}.top-actions{margin-left:auto;display:flex;align-items:center;gap:.65rem}.icon-button{width:40px;height:40px;border:1px solid var(--line);border-radius:11px;background:#fff;color:var(--ink)}.profile-button{display:flex;align-items:center;gap:.65rem;border:0;background:transparent;text-align:left}.profile-button>span:first-child{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:var(--green);color:#fff;font-weight:800;font-size:.78rem}.profile-copy strong,.profile-copy small{display:block}.profile-copy strong{font-size:.82rem}.profile-copy small{font-size:.7rem;color:var(--muted)}
main{padding:clamp(1.2rem,3vw,2.4rem);max-width:1500px;margin:0 auto}.view{animation:fade .18s ease}@keyframes fade{from{opacity:.45;transform:translateY(3px)}to{opacity:1;transform:none}}
.hero{position:relative;overflow:hidden;border-radius:24px;background:linear-gradient(120deg,var(--ink),var(--ink-2));color:#fff;padding:clamp(1.8rem,4vw,3.5rem);box-shadow:var(--shadow)}.hero:after{content:"";position:absolute;width:340px;height:340px;border-radius:50%;border:1px solid rgba(189,141,82,.34);right:-130px;bottom:-190px}.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.25fr .75fr;gap:2rem;align-items:center}.eyebrow{text-transform:uppercase;letter-spacing:.1em;font-size:.72rem;font-weight:850;color:var(--copper-dark)}.hero .eyebrow{color:#e3bd83}.hero h1{font-family:Georgia,serif;font-weight:600;font-size:clamp(2.1rem,4vw,4rem);line-height:1.08;margin:.45rem 0 1rem}.hero p{color:#ced9df;max-width:700px;font-size:1.04rem}.hero-actions{display:flex;gap:.75rem;flex-wrap:wrap;margin-top:1.35rem}.button{border:0;border-radius:999px;padding:.78rem 1.1rem;font-weight:800;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:.5rem}.button-primary{background:var(--copper);color:var(--ink)}.button-secondary{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.35)}.button-dark{background:var(--ink);color:#fff}.button-light{background:#fff;color:var(--ink);border:1px solid var(--line)}.hero-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:20px;padding:1.2rem}.hero-card h2{font-family:Georgia,serif;font-size:1.3rem;margin:.2rem 0}.hero-stat{display:grid;grid-template-columns:auto 1fr;gap:.75rem;align-items:center;padding:.85rem 0;border-bottom:1px solid rgba(255,255,255,.1)}.hero-stat:last-child{border:0}.hero-stat strong{font-size:1.6rem;color:#e3bd83}.hero-stat span{font-size:.82rem;color:#d7e0e5}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:1rem;margin:2rem 0 1rem}.section-head h2{font-family:Georgia,serif;font-size:1.65rem;margin:.2rem 0}.section-head p{margin:0;color:var(--muted);font-size:.9rem}.link-button{border:0;background:transparent;color:var(--green);font-weight:800;padding:.3rem}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin-top:1rem}.stat-card,.card,.panel{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 8px 28px rgba(16,40,58,.055)}.stat-card{padding:1.15rem}.stat-card .icon{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:var(--green-soft);color:var(--green);font-weight:900}.stat-card strong{display:block;font-size:1.55rem;margin:.8rem 0 .1rem}.stat-card span{color:var(--muted);font-size:.8rem}
.content-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.content-card{display:flex;flex-direction:column;padding:1.15rem;min-height:260px}.content-card .card-top{display:flex;align-items:flex-start;justify-content:space-between;gap:.75rem}.collection-pill,.status-pill,.level-pill{display:inline-flex;border-radius:999px;padding:.3rem .58rem;font-size:.68rem;font-weight:800}.collection-pill{background:var(--green-soft);color:var(--green)}.status-pill{background:#efe4d3;color:#77511f}.level-pill{background:#e9eef1;color:#345269}.favorite-button{border:0;background:transparent;font-size:1.3rem;color:#9ea6aa}.favorite-button.active{color:#b87f25}.content-card h3{font-family:Georgia,serif;font-size:1.25rem;line-height:1.25;margin:1rem 0 .55rem}.content-card p{color:var(--muted);font-size:.87rem;margin:0}.card-meta{display:flex;gap:.8rem;flex-wrap:wrap;color:var(--muted);font-size:.73rem;margin-top:auto;padding-top:1rem}.mini-progress{height:6px;border-radius:99px;background:#e8e7e2;overflow:hidden;margin:.75rem 0}.mini-progress span{display:block;height:100%;background:var(--green)}.card-actions{display:flex;gap:.5rem}.card-actions .button{padding:.62rem .85rem;font-size:.78rem;flex:1}
.two-col{display:grid;grid-template-columns:1.4fr .6fr;gap:1rem}.panel{padding:1.25rem}.panel h3{font-family:Georgia,serif;margin:.15rem 0 .8rem}.activity-list,.resource-list{display:grid;gap:.7rem}.activity-item,.resource-item{display:flex;gap:.8rem;align-items:flex-start;padding:.8rem;border-radius:12px;background:#f5f3ee}.activity-item .dot{width:10px;height:10px;border-radius:50%;background:var(--copper);margin-top:.4rem}.activity-item strong,.activity-item span{display:block}.activity-item strong{font-size:.84rem}.activity-item span{font-size:.75rem;color:var(--muted)}.resource-item{justify-content:space-between;align-items:center}.resource-item a{font-size:.8rem;font-weight:800;color:var(--green)}
.page-title{margin-bottom:1.5rem}.page-title h1{font-family:Georgia,serif;font-size:clamp(2rem,4vw,3rem);margin:.25rem 0}.page-title p{color:var(--muted);max-width:760px}.filters{display:flex;flex-wrap:wrap;gap:.6rem;margin-bottom:1.2rem}.filter-chip{border:1px solid var(--line);border-radius:999px;background:#fff;padding:.55rem .8rem;color:var(--muted);font-size:.78rem}.filter-chip.active{background:var(--ink);color:#fff;border-color:var(--ink)}
.search-page-form{display:grid;grid-template-columns:1fr auto;gap:.75rem;margin-bottom:1.3rem}.search-page-form input,.select-control{border:1px solid var(--line);background:#fff;border-radius:13px;padding:.8rem .95rem;outline:0}.search-page-form input:focus,.select-control:focus{border-color:var(--copper);box-shadow:0 0 0 3px rgba(189,141,82,.15)}.search-result-count{color:var(--muted);font-size:.84rem;margin-bottom:.8rem}.empty-state{text-align:center;padding:3rem 1rem;background:var(--paper);border:1px dashed #c8c9c4;border-radius:var(--radius)}.empty-state h2{font-family:Georgia,serif}.empty-state p{color:var(--muted)}
.content-header{border-radius:22px;background:linear-gradient(120deg,#fff,#f3f0e8);border:1px solid var(--line);padding:clamp(1.3rem,3vw,2.2rem)}.content-header-top{display:flex;justify-content:space-between;gap:1rem;align-items:flex-start}.content-header h1{font-family:Georgia,serif;max-width:900px;font-size:clamp(2rem,4vw,3.2rem);line-height:1.13;margin:.7rem 0}.content-header p{color:var(--muted);max-width:850px}.content-meta{display:flex;flex-wrap:wrap;gap:.7rem;color:var(--muted);font-size:.8rem}.content-actions{display:flex;gap:.5rem;flex-wrap:wrap}.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:1rem;margin-top:1rem}.reader{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.reader-tabs{display:flex;gap:.3rem;padding:.65rem;background:#eeece6;border-bottom:1px solid var(--line);overflow:auto}.reader-tab{white-space:nowrap;border:0;border-radius:10px;background:transparent;padding:.7rem .9rem;color:var(--muted);font-weight:800;font-size:.8rem}.reader-tab.active{background:#fff;color:var(--ink);box-shadow:0 3px 12px rgba(16,40,58,.08)}.reader-body{padding:clamp(1.2rem,3vw,2.2rem)}.reader-body h2{font-family:Georgia,serif;color:var(--ink);font-size:1.55rem;margin:2rem 0 .7rem}.reader-body h2:first-child{margin-top:0}.reader-body h3{color:var(--green);font-size:1.08rem;margin:1.45rem 0 .5rem}.reader-body p,.reader-body li{font-size:.95rem}.reader-body li{margin:.35rem 0}.callout{border-left:4px solid var(--copper);background:#f4eadb;padding:1rem;border-radius:0 12px 12px 0;margin:1rem 0}.callout strong{color:#68451f}.legal-rule{background:var(--ink);color:#fff;padding:1.2rem;border-radius:15px;margin:1rem 0}.legal-rule small{display:block;color:#d8bd91;text-transform:uppercase;font-weight:800;letter-spacing:.08em}.comparison-table{width:100%;border-collapse:collapse;font-size:.82rem;margin:1rem 0;display:block;overflow:auto}.comparison-table th,.comparison-table td{border:1px solid var(--line);padding:.7rem;text-align:left;vertical-align:top}.comparison-table th{background:#e9efed;color:var(--ink)}.reader-sidebar{display:grid;gap:1rem;align-content:start}.toc{position:sticky;top:90px}.toc ul{list-style:none;padding:0;margin:.6rem 0}.toc li{padding:.4rem 0;border-bottom:1px solid #ecebe6;font-size:.78rem;color:var(--muted)}.source-link{display:block;padding:.65rem;border-radius:10px;background:#f4f2ed;margin:.45rem 0;font-size:.77rem;text-decoration:none;color:var(--green);font-weight:700}.complete-button{width:100%}
.quiz-layout{display:grid;grid-template-columns:1fr 300px;gap:1rem}.quiz-card{padding:1.5rem}.quiz-progress{font-size:.78rem;color:var(--muted);margin-bottom:.6rem}.quiz-card h2{font-family:Georgia,serif;font-size:1.5rem}.quiz-options{display:grid;gap:.65rem;margin:1rem 0}.quiz-option{border:1px solid var(--line);background:#fff;border-radius:13px;padding:.85rem;text-align:left}.quiz-option:hover{border-color:var(--copper)}.quiz-option.selected{border-color:var(--ink);background:#edf1f3}.quiz-option.correct{border-color:var(--success);background:#e8f3ec}.quiz-option.wrong{border-color:var(--danger);background:#f6e8e8}.quiz-explanation{padding:1rem;border-radius:13px;background:#f2eee5;margin:1rem 0}.quiz-summary{text-align:center;padding:2rem}.score-ring{width:130px;height:130px;border-radius:50%;display:grid;place-items:center;margin:0 auto 1rem;background:conic-gradient(var(--green) var(--score),#e3e4df 0);position:relative}.score-ring:before{content:"";position:absolute;inset:12px;border-radius:50%;background:#fff}.score-ring strong{position:relative;font-size:1.7rem;color:var(--ink)}
.compare-controls{display:grid;grid-template-columns:1fr auto 1fr;gap:.8rem;align-items:center;margin:1rem 0}.compare-symbol{font-size:1.4rem;color:var(--copper);font-weight:900}.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.compare-card{padding:1.3rem}.compare-card h2{font-family:Georgia,serif;color:var(--ink)}.compare-list{display:grid;gap:.7rem}.compare-row{padding:.7rem;border-radius:11px;background:#f4f2ed}.compare-row strong{display:block;font-size:.76rem;color:var(--green);text-transform:uppercase;letter-spacing:.05em}.compare-row span{font-size:.88rem}
.toast{position:fixed;right:1.2rem;bottom:1.2rem;z-index:100;background:var(--ink);color:#fff;padding:.85rem 1rem;border-radius:12px;box-shadow:var(--shadow);opacity:0;pointer-events:none;transform:translateY(10px);transition:.2s}.toast.show{opacity:1;transform:none}
@media(max-width:1050px){.app-shell{grid-template-columns:1fr}.sidebar{position:fixed;inset:34px auto 0 0;width:min(90vw,var(--sidebar));height:calc(100vh - 34px);transform:translateX(-105%);transition:transform .25s ease;box-shadow:var(--shadow)}.sidebar.open{transform:none}.sidebar-close,.menu-button{display:block}.topbar{top:0}.stat-grid{grid-template-columns:repeat(2,1fr)}.content-grid{grid-template-columns:repeat(2,1fr)}.content-layout{grid-template-columns:1fr}.toc{position:static}.quiz-layout{grid-template-columns:1fr}.profile-copy{display:none}}
@media(max-width:720px){.prototype-banner{height:auto;min-height:38px;flex-wrap:wrap;gap:.2rem .5rem;padding:.35rem .7rem}.topbar{height:64px;padding:0 .75rem}.top-search kbd{display:none}.top-actions{gap:.2rem}.profile-button>span:first-child{width:34px;height:34px}.hero-grid,.two-col{grid-template-columns:1fr}.hero-card{display:none}.stat-grid,.content-grid,.compare-grid{grid-template-columns:1fr}.section-head{align-items:flex-start}.content-header-top{display:block}.content-actions{margin-top:1rem}.compare-controls{grid-template-columns:1fr}.compare-symbol{text-align:center;transform:rotate(90deg)}.search-page-form{grid-template-columns:1fr}.reader-body{padding:1.15rem}.top-search{padding:.55rem .65rem}main{padding:1rem}.page-title h1{font-size:2rem}}