:root{
  --nav:#0b1220;--nav-soft:#111c31;--nav-line:rgba(255,255,255,.09);
  --primary:#2563eb;--primary-700:#1d4ed8;--teal:#0f9f91;--emerald:#059669;
  --ink:#132238;--ink-2:#25364d;--muted:#65758b;--muted-2:#8795a8;
  --bg:#f3f6fa;--paper:#fff;--paper-2:#f8fafc;--line:#dfe6ef;--line-strong:#cbd5e1;
  --warning:#b45309;--warning-bg:#fff7ed;--success:#047857;--success-bg:#ecfdf5;
  --danger:#b91c1c;--danger-bg:#fef2f2;--info-bg:#eff6ff;
  --shadow-sm:0 1px 2px rgba(15,23,42,.04),0 4px 12px rgba(15,23,42,.04);
  --shadow:0 18px 45px rgba(15,23,42,.09);--radius:16px;--radius-lg:24px;
  --sidebar:274px;--topbar:76px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;line-height:1.58;-webkit-font-smoothing:antialiased}button,input,select{font:inherit}button{color:inherit}a{color:inherit}.app-shell{min-height:100vh}.app-main{min-height:100vh;margin-left:var(--sidebar);display:flex;flex-direction:column}.sidebar{position:fixed;z-index:80;inset:0 auto 0 0;width:var(--sidebar);background:linear-gradient(180deg,var(--nav),#0d1728);color:#d8e2f0;padding:18px 14px;overflow:auto;border-right:1px solid rgba(255,255,255,.03)}.topbar{height:var(--topbar);position:sticky;top:0;z-index:60;display:flex;align-items:center;gap:16px;padding:12px 28px;background:rgba(243,246,250,.9);backdrop-filter:blur(18px);border-bottom:1px solid rgba(203,213,225,.8)}.content{width:min(1320px,100%);margin:0 auto;padding:30px 30px 72px;flex:1;outline:0}.footer{border-top:1px solid var(--line);background:rgba(255,255,255,.5);padding:23px 30px;display:flex;justify-content:space-between;gap:24px;color:var(--muted);font-size:.84rem}.footer div{display:flex;gap:12px;flex-wrap:wrap}.footer strong{color:var(--ink)}
.brand{display:flex;align-items:center;gap:12px;padding:3px 6px 18px;border-bottom:1px solid var(--nav-line);margin-bottom:13px}.brand-logo{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,#2563eb,#14b8a6);box-shadow:0 10px 24px rgba(37,99,235,.27)}.brand-logo svg{width:25px;height:25px}.brand-copy strong{display:block;color:#fff;font-size:1.08rem;letter-spacing:-.02em}.brand-copy span{display:block;color:#91a2ba;font-size:.75rem;margin-top:1px}.side-section{margin:17px 10px 7px;color:#71829a;text-transform:uppercase;font-size:.65rem;font-weight:800;letter-spacing:.14em}.side-link{width:100%;border:0;background:transparent;color:#b8c5d8;display:flex;align-items:center;gap:12px;padding:10px 11px;border-radius:11px;cursor:pointer;text-align:left;margin:2px 0;font-size:.9rem;font-weight:630}.side-link:hover{background:rgba(255,255,255,.06);color:#fff}.side-link.active{background:linear-gradient(90deg,rgba(37,99,235,.28),rgba(20,184,166,.12));color:#fff;box-shadow:inset 3px 0 #55d5c8}.side-icon{width:22px;height:22px;display:grid;place-items:center;flex:0 0 auto}.side-icon svg{width:20px;height:20px;stroke-width:1.8}.side-count{margin-left:auto;color:#7f91a9;font-size:.72rem}.side-card{margin:18px 5px 5px;padding:15px;border:1px solid var(--nav-line);border-radius:14px;background:rgba(255,255,255,.035)}.side-card strong{display:block;color:#fff;font-size:.82rem}.side-card p{color:#8fa1b9;font-size:.75rem;margin:5px 0 10px;line-height:1.45}.side-progress{height:5px;background:rgba(255,255,255,.09);border-radius:999px;overflow:hidden}.side-progress span{display:block;height:100%;background:linear-gradient(90deg,#3b82f6,#2dd4bf)}
.menu-btn{display:none;width:42px;height:42px;border:0;border-radius:12px;background:var(--nav);color:white;cursor:pointer;place-items:center}.menu-btn svg{width:21px}.top-search{position:relative;flex:1;max-width:760px}.top-search input{width:100%;height:48px;padding:0 48px 0 45px;border:1px solid var(--line);border-radius:14px;background:#fff;outline:0;color:var(--ink);box-shadow:var(--shadow-sm)}.top-search input:focus{border-color:#8bb2ff;box-shadow:0 0 0 4px rgba(37,99,235,.10)}.search-leading,.search-shortcut{position:absolute;top:50%;transform:translateY(-50%);color:var(--muted-2)}.search-leading{left:15px;width:20px}.search-shortcut{right:13px;border:1px solid var(--line);padding:2px 7px;border-radius:7px;font-size:.68rem;background:var(--paper-2)}.search-panel{position:absolute;left:0;right:0;top:56px;z-index:100;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:8px;max-height:min(66vh,560px);overflow:auto}.search-group-title{font-size:.67rem;font-weight:850;color:var(--muted);text-transform:uppercase;letter-spacing:.1em;padding:8px 10px 4px}.search-result{width:100%;border:0;background:transparent;border-radius:11px;padding:10px 11px;text-align:left;display:flex;gap:11px;align-items:flex-start;cursor:pointer}.search-result:hover{background:#f0f6ff}.search-result .mini-icon{margin-top:1px}.search-result strong{display:block;font-size:.88rem}.search-result span{display:block;color:var(--muted);font-size:.76rem;margin-top:2px}.top-actions{display:flex;align-items:center;gap:9px}.source-badge,.top-icon-btn{height:42px;border:1px solid var(--line);background:#fff;border-radius:12px;display:flex;align-items:center;gap:8px;padding:0 12px;color:var(--muted);font-size:.76rem;font-weight:700}.source-badge i{width:7px;height:7px;border-radius:50%;background:var(--emerald)}.top-icon-btn{width:42px;padding:0;justify-content:center;cursor:pointer}.top-icon-btn svg{width:19px}
.eyebrow{font-size:.71rem;font-weight:850;text-transform:uppercase;letter-spacing:.12em;color:var(--primary)}.page-title{margin:7px 0 9px;font-size:clamp(2rem,3.5vw,3.3rem);line-height:1.05;letter-spacing:-.045em}.page-lead{color:var(--muted);font-size:1.02rem;max-width:850px;margin:0}.page-header{margin-bottom:24px}.breadcrumbs{display:flex;gap:7px;flex-wrap:wrap;align-items:center;color:var(--muted);font-size:.78rem;margin-bottom:15px}.breadcrumbs button{border:0;background:transparent;color:var(--primary);padding:0;cursor:pointer}.breadcrumbs svg{width:14px}.hero{position:relative;overflow:hidden;min-height:340px;border-radius:28px;background:radial-gradient(circle at 85% 15%,rgba(45,212,191,.22),transparent 33%),radial-gradient(circle at 15% 90%,rgba(59,130,246,.18),transparent 37%),linear-gradient(135deg,#0b1220 0%,#112746 58%,#0d3a42 100%);color:#fff;padding:45px 48px;box-shadow:var(--shadow)}.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.3fr) minmax(310px,.7fr);gap:35px;align-items:center}.hero .eyebrow{color:#61e4d3}.hero h1{margin:9px 0 17px;font-size:clamp(2.35rem,4.5vw,4.25rem);line-height:.98;letter-spacing:-.055em;max-width:780px}.hero p{margin:0;color:#c6d5e8;max-width:750px;font-size:1.06rem}.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:25px}.hero-panel{border:1px solid rgba(255,255,255,.13);background:rgba(255,255,255,.06);backdrop-filter:blur(8px);border-radius:20px;padding:21px}.hero-panel-label{color:#8fa9c9;font-size:.72rem;text-transform:uppercase;font-weight:800;letter-spacing:.11em}.hero-panel h3{margin:7px 0 4px;font-size:1.15rem}.hero-panel p{font-size:.84rem;line-height:1.5}.hero-panel .progress-row{margin-top:16px}.btn{border:0;border-radius:11px;min-height:42px;padding:9px 15px;display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:750;font-size:.86rem;cursor:pointer;text-decoration:none;transition:.16s}.btn svg{width:17px;height:17px}.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 18px rgba(37,99,235,.22)}.btn-primary:hover{background:var(--primary-700);transform:translateY(-1px)}.btn-light{background:#fff;color:var(--nav)}.btn-light:hover{background:#eff6ff}.btn-outline{background:#fff;border:1px solid var(--line);color:var(--ink-2)}.btn-outline:hover{border-color:#9dbcf6;color:var(--primary)}.btn-ghost{background:transparent;color:var(--muted)}.btn-small{min-height:34px;padding:6px 10px;font-size:.76rem}.btn-icon{width:38px;padding:0}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:18px}.stat-card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:16px 17px;box-shadow:var(--shadow-sm)}.stat-card strong{display:block;font-size:1.55rem;letter-spacing:-.035em}.stat-card span{display:block;color:var(--muted);font-size:.76rem;margin-top:2px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin:36px 0 15px}.section-head h2{font-size:1.34rem;margin:0;letter-spacing:-.025em}.section-head p{margin:3px 0 0;color:var(--muted);font-size:.88rem}.section-link{border:0;background:transparent;color:var(--primary);font-weight:750;cursor:pointer;font-size:.83rem}.grid{display:grid;gap:16px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm)}.card-pad{padding:20px}.card-hover{transition:.16s}.card-hover:hover{transform:translateY(-2px);border-color:#a9c3f2;box-shadow:0 14px 32px rgba(30,64,175,.08)}.card-top{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}.card h3{margin:9px 0 7px;font-size:1.03rem;line-height:1.3;letter-spacing:-.018em}.card p{margin:0;color:var(--muted);font-size:.86rem}.card-footer{margin-top:16px;padding-top:13px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:10px;align-items:center;color:var(--muted);font-size:.75rem}.mini-icon{width:40px;height:40px;border-radius:12px;background:#edf4ff;color:var(--primary);display:grid;place-items:center;flex:0 0 auto}.mini-icon svg{width:20px;height:20px}.mini-icon.emerald{background:#ecfdf5;color:#059669}.mini-icon.amber{background:#fff7ed;color:#b45309}.mini-icon.violet{background:#f5f3ff;color:#7c3aed}.pill{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:#fff;border-radius:999px;padding:4px 9px;color:var(--muted);font-size:.69rem;font-weight:690}.pill-primary{border-color:#c7d8ff;background:#eff6ff;color:#1d4ed8}.pill-success{border-color:#a7f3d0;background:#ecfdf5;color:#047857}.pill-warning{border-color:#fed7aa;background:#fff7ed;color:#b45309}.progress{height:7px;background:#e8eef6;border-radius:999px;overflow:hidden}.progress>span{display:block;height:100%;background:linear-gradient(90deg,#2563eb,#14b8a6);border-radius:inherit}.progress-row{display:flex;align-items:center;gap:10px}.progress-row .progress{flex:1}.progress-row small{color:var(--muted);font-size:.72rem;white-space:nowrap}.hero .progress{background:rgba(255,255,255,.11)}
.area-card{padding:21px;position:relative;overflow:hidden;min-height:205px;display:flex;flex-direction:column}.area-card:after{content:"";position:absolute;width:120px;height:120px;border-radius:50%;right:-55px;bottom:-55px;background:var(--area-soft,#edf4ff)}.area-card .mini-icon{position:relative;z-index:1}.area-card h3,.area-card p,.area-card .card-footer{position:relative;z-index:1}.area-meta{display:flex;gap:7px;flex-wrap:wrap;margin-top:11px}.area-card .card-footer{margin-top:auto}.feature-strip{display:grid;grid-template-columns:1.1fr .9fr;gap:16px}.update-card{padding:20px}.update-date{font-size:.71rem;color:var(--muted);font-weight:700}.update-card h3{margin:6px 0 8px}.update-impact{margin-top:12px;padding:11px 12px;border-radius:10px;background:#f8fafc;border:1px solid var(--line);font-size:.78rem;color:var(--ink-2)}
.filters-bar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;background:#fff;border:1px solid var(--line);border-radius:15px;padding:11px;margin-bottom:17px}.filter-input,.filter-select{height:40px;border:1px solid var(--line);background:#fff;border-radius:10px;padding:0 12px;outline:0;color:var(--ink)}.filter-input{min-width:250px;flex:1}.filter-input:focus,.filter-select:focus{border-color:#8bb2ff;box-shadow:0 0 0 3px rgba(37,99,235,.08)}.topic-card{padding:19px}.topic-card .topic-meta{display:flex;gap:7px;flex-wrap:wrap}.topic-card h3{font-size:1.02rem}.topic-card .topic-actions{display:flex;gap:8px}.unit-section{margin-top:24px}.unit-heading{display:flex;align-items:center;gap:10px;margin:0 0 12px}.unit-number{width:28px;height:28px;border-radius:9px;background:var(--nav);color:#fff;display:grid;place-items:center;font-size:.72rem;font-weight:800}.area-banner{padding:29px;border-radius:22px;background:linear-gradient(125deg,#fff,#f6f9fd);border:1px solid var(--line);display:grid;grid-template-columns:1fr auto;gap:20px;align-items:center}.area-banner h1{margin:8px 0 8px;font-size:clamp(1.9rem,3vw,2.9rem);line-height:1.06;letter-spacing:-.04em}.area-banner p{margin:0;color:var(--muted);max-width:760px}.area-banner-icon{width:92px;height:92px;border-radius:25px;background:#eaf2ff;color:var(--primary);display:grid;place-items:center}.area-banner-icon svg{width:44px;height:44px}.area-summary{display:flex;gap:9px;flex-wrap:wrap;margin-top:16px}
.topic-hero{background:#fff;border:1px solid var(--line);border-radius:22px;padding:27px 29px;margin-bottom:18px}.topic-hero-grid{display:grid;grid-template-columns:1fr auto;gap:20px}.topic-hero h1{margin:8px 0 10px;font-size:clamp(1.8rem,3.2vw,3rem);line-height:1.07;letter-spacing:-.042em}.topic-hero p{margin:0;color:var(--muted);max-width:900px}.topic-toolbar{display:flex;gap:8px;flex-wrap:wrap;margin-top:17px}.topic-score{min-width:170px;text-align:right}.topic-score strong{display:block;font-size:1.7rem}.topic-score span{font-size:.75rem;color:var(--muted)}.summary-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:18px}.summary-box{padding:22px}.summary-box h2{margin:0 0 11px;font-size:1.17rem}.key-list{display:grid;gap:9px}.key-item{display:flex;gap:10px;align-items:flex-start;font-size:.86rem}.key-item:before{content:"✓";width:20px;height:20px;border-radius:7px;background:#ecfdf5;color:#047857;display:grid;place-items:center;font-size:.7rem;font-weight:900;flex:0 0 auto}.curriculum{overflow:hidden}.curriculum-head{padding:18px 20px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}.lesson-row{width:100%;border:0;border-bottom:1px solid var(--line);background:#fff;padding:14px 18px;display:grid;grid-template-columns:34px minmax(0,1fr) auto;gap:12px;align-items:center;text-align:left;cursor:pointer}.lesson-row:last-child{border-bottom:0}.lesson-row:hover{background:#f8fbff}.lesson-index{width:31px;height:31px;border-radius:9px;background:#f1f5f9;color:var(--muted);display:grid;place-items:center;font-size:.72rem;font-weight:800}.lesson-row strong{display:block;font-size:.88rem}.lesson-row span{display:block;color:var(--muted);font-size:.75rem;margin-top:2px}.lesson-row svg{width:18px;color:var(--muted)}.source-list{display:grid;gap:8px}.source-link{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;border:1px solid var(--line);border-radius:11px;padding:11px;text-decoration:none;font-size:.8rem}.source-link:hover{border-color:#9bb8ef;background:#f8fbff}.source-link small{display:block;color:var(--muted);margin-top:2px}.source-link svg{width:17px;flex:0 0 auto;color:var(--primary)}
.reader-layout{display:grid;grid-template-columns:250px minmax(0,1fr) 245px;gap:17px;align-items:start}.lesson-rail,.reader-aside{position:sticky;top:95px;max-height:calc(100vh - 118px);overflow:auto}.lesson-rail{background:#fff;border:1px solid var(--line);border-radius:15px;padding:10px}.rail-title{padding:8px 9px;font-size:.68rem;text-transform:uppercase;letter-spacing:.1em;font-weight:850;color:var(--muted)}.rail-link{width:100%;border:0;background:transparent;border-radius:9px;text-align:left;padding:9px 10px;display:flex;gap:8px;cursor:pointer;color:var(--muted);font-size:.77rem;line-height:1.35}.rail-link:hover{background:#f5f8fc;color:var(--ink)}.rail-link.active{background:#edf4ff;color:#1d4ed8;font-weight:750}.rail-link .rail-dot{width:18px;height:18px;border-radius:6px;border:1px solid var(--line-strong);display:grid;place-items:center;flex:0 0 auto;font-size:.6rem}.rail-link.done .rail-dot{background:#ecfdf5;border-color:#a7f3d0;color:#047857}.reader-article{min-width:0}.lesson-header{background:#fff;border:1px solid var(--line);border-radius:19px;padding:25px 27px;margin-bottom:14px}.lesson-header h1{margin:7px 0 9px;font-size:clamp(1.65rem,2.7vw,2.45rem);line-height:1.1;letter-spacing:-.035em}.lesson-header p{margin:0;color:var(--muted)}.article-section{background:#fff;border:1px solid var(--line);border-radius:15px;padding:23px 25px;margin-bottom:12px}.article-section h2{margin:0 0 12px;font-size:1.16rem}.article-section p{margin:10px 0;color:var(--ink-2)}.article-section ul,.article-section ol{padding-left:22px}.article-section li{margin:7px 0;color:var(--ink-2)}.article-table{overflow:auto;border:1px solid var(--line);border-radius:11px;margin-top:12px}.article-table table{border-collapse:collapse;width:100%;font-size:.82rem}.article-table th,.article-table td{padding:10px 11px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.article-table th{background:#f8fafc;color:#526177;text-transform:uppercase;font-size:.67rem;letter-spacing:.04em}.article-table tr:last-child td{border-bottom:0}.callout{border-radius:12px;padding:15px 16px;border:1px solid #bfdbfe;background:#eff6ff;margin-top:12px}.callout strong{display:block;margin-bottom:3px;font-size:.82rem}.callout p{margin:0;font-size:.84rem}.callout.warning{background:var(--warning-bg);border-color:#fed7aa}.callout.success{background:var(--success-bg);border-color:#a7f3d0}.callout.case{background:#f5f3ff;border-color:#ddd6fe}.steps{counter-reset:step;display:grid;gap:10px;list-style:none!important;padding:0!important}.steps li{counter-increment:step;display:flex;gap:11px;align-items:flex-start}.steps li:before{content:counter(step);width:26px;height:26px;border-radius:9px;background:var(--nav);color:#fff;display:grid;place-items:center;font-size:.7rem;font-weight:850;flex:0 0 auto}.reader-aside{display:grid;gap:12px}.aside-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px}.aside-card h3{margin:0 0 10px;font-size:.86rem}.aside-card p{font-size:.77rem;color:var(--muted);margin:0}.lesson-nav{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}.lesson-nav .btn{white-space:normal;text-align:left}.mobile-lesson-select{display:none;margin-bottom:12px}.mobile-lesson-select select{width:100%;height:44px;border:1px solid var(--line);border-radius:11px;background:#fff;padding:0 11px}
.norm-card{padding:20px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:18px}.norm-card h3{margin:7px 0 4px;font-size:1rem}.norm-number{font-size:.8rem;font-weight:750;color:var(--ink-2)}.norm-card p{margin:8px 0;color:var(--muted);font-size:.83rem}.norm-meta{display:flex;gap:7px;flex-wrap:wrap}.norm-actions{align-self:center}.update-list{display:grid;gap:12px}.update-row{background:#fff;border:1px solid var(--line);border-radius:15px;padding:19px;display:grid;grid-template-columns:110px minmax(0,1fr) 120px;gap:18px;align-items:start}.update-row time{font-size:.75rem;color:var(--muted)}.update-row h3{margin:0 0 6px;font-size:1rem}.update-row p{margin:0;color:var(--muted);font-size:.83rem}.update-row .impact{margin-top:10px;font-size:.77rem;color:var(--ink-2)}.case-card{padding:20px}.case-card ol{padding-left:20px;color:var(--muted);font-size:.82rem}.case-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:18px}.case-steps{counter-reset:case-step;display:grid;gap:12px}.case-step{background:#fff;border:1px solid var(--line);border-radius:14px;padding:17px 18px;display:flex;gap:14px}.case-step:before{counter-increment:case-step;content:counter(case-step);width:32px;height:32px;border-radius:10px;background:#edf4ff;color:var(--primary);display:grid;place-items:center;font-weight:850;flex:0 0 auto}.glossary-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.glossary-item{background:#fff;border:1px solid var(--line);border-radius:13px;padding:16px}.glossary-item strong{display:block;margin-bottom:5px}.glossary-item p{margin:0;color:var(--muted);font-size:.83rem}
.calc-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:17px}.calc-menu{background:#fff;border:1px solid var(--line);border-radius:14px;padding:8px;height:max-content}.calc-tab{width:100%;border:0;background:transparent;border-radius:9px;padding:10px 11px;text-align:left;cursor:pointer;font-size:.8rem;color:var(--muted)}.calc-tab:hover{background:#f6f8fb}.calc-tab.active{background:#edf4ff;color:#1d4ed8;font-weight:750}.calc-card{padding:24px}.calc-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.field label{display:block;color:var(--muted);font-size:.75rem;font-weight:700;margin-bottom:5px}.field input,.field select{width:100%;height:44px;border:1px solid var(--line);border-radius:10px;padding:0 11px;outline:0}.field input:focus,.field select:focus{border-color:#8bb2ff;box-shadow:0 0 0 3px rgba(37,99,235,.08)}.calc-output{grid-column:1/-1;background:linear-gradient(135deg,#0b1220,#153659);color:#fff;border-radius:15px;padding:20px}.calc-output span{color:#a9bdd6;font-size:.77rem}.calc-output strong{display:block;font-size:1.85rem;margin-top:4px}.calc-output p{color:#c7d5e7;font-size:.8rem;margin:8px 0 0}.empty{padding:60px 25px;text-align:center;color:var(--muted)}.empty svg{width:46px;height:46px;color:#a8b4c4}.empty h2{color:var(--ink);margin:12px 0 7px}.toast{position:fixed;z-index:150;right:22px;bottom:22px;background:var(--nav);color:#fff;border-radius:12px;padding:12px 16px;box-shadow:var(--shadow);font-size:.82rem;opacity:0;transform:translateY(12px);pointer-events:none;transition:.2s}.toast.show{opacity:1;transform:none}.drawer-backdrop{position:fixed;z-index:70;inset:0;background:rgba(6,13,24,.52);backdrop-filter:blur(2px)}
@media(max-width:1180px){.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}.reader-layout{grid-template-columns:220px minmax(0,1fr)}.reader-aside{position:static;grid-column:2;max-height:none}.summary-layout{grid-template-columns:1fr}.hero-grid{grid-template-columns:1fr}.hero-panel{max-width:650px}.feature-strip{grid-template-columns:1fr}.case-layout{grid-template-columns:1fr}}
@media(max-width:900px){:root{--sidebar:0px}.app-main{margin-left:0}.sidebar{transform:translateX(-104%);transition:transform .22s;width:286px}.sidebar.open{transform:none}.menu-btn{display:grid}.topbar{padding:11px 16px}.source-badge span{display:none}.content{padding:23px 17px 55px}.hero{padding:32px 25px}.stats-grid{grid-template-columns:repeat(2,1fr)}.reader-layout{grid-template-columns:1fr}.lesson-rail{display:none}.reader-aside{grid-column:1;max-height:none}.mobile-lesson-select{display:block}.area-banner{grid-template-columns:1fr}.area-banner-icon{display:none}.footer{padding:22px 17px;flex-direction:column}.update-row{grid-template-columns:1fr}.update-row .btn{justify-self:start}.calc-layout{grid-template-columns:1fr}.calc-menu{display:flex;overflow:auto;gap:5px}.calc-tab{white-space:nowrap;width:auto}.topic-score{text-align:left}.topic-hero-grid{grid-template-columns:1fr}}
@media(max-width:620px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.stats-grid{grid-template-columns:repeat(2,1fr)}.hero{border-radius:21px;padding:27px 20px}.hero h1{font-size:2.25rem}.top-actions .top-icon-btn{display:none}.search-shortcut{display:none}.top-search input{padding-right:14px}.section-head{align-items:flex-start}.page-title{font-size:2rem}.norm-card{grid-template-columns:1fr}.norm-actions{justify-self:start}.glossary-grid{grid-template-columns:1fr}.calc-form{grid-template-columns:1fr}.calc-output{grid-column:1}.lesson-nav{grid-template-columns:1fr}.topic-hero{padding:22px 19px}.lesson-header,.article-section{padding:20px 18px}.area-banner{padding:23px 19px}.footer div{flex-direction:column;gap:3px}.stats-grid .stat-card{padding:14px}.stat-card strong{font-size:1.3rem}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* v0.3.0 — componentes editoriales avanzados */
.summary-kicker{display:inline-flex;align-items:center;gap:7px;margin-bottom:8px;color:var(--primary);font-size:.68rem;font-weight:850;text-transform:uppercase;letter-spacing:.11em}.learning-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:17px}.learning-grid>section,.learning-grid>div{padding:17px 18px;border:1px solid var(--line);border-radius:14px;background:var(--paper-2)}.learning-grid h3{margin:0 0 8px;font-size:.91rem;letter-spacing:-.015em}.learning-grid p{margin:0;color:var(--muted);font-size:.84rem}.deliverable-list{display:grid;gap:9px;margin:12px 0 0;padding:0;list-style:none}.deliverable-item{display:flex;align-items:flex-start;gap:10px;padding:11px 12px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--ink-2);font-size:.84rem}.deliverable-item:before{content:"";width:7px;height:7px;margin-top:.48em;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--teal));box-shadow:0 0 0 4px rgba(37,99,235,.08);flex:0 0 auto}.study-checklist{display:grid;gap:9px;margin:15px 0 0;padding:0;list-style:none}.study-check{display:flex;align-items:flex-start;gap:11px;padding:11px 12px;border:1px solid #cde4dd;border-radius:12px;background:#f5fcf9;color:#24463d;font-size:.86rem}.study-check:before{content:"✓";width:21px;height:21px;display:grid;place-items:center;flex:0 0 auto;border-radius:7px;background:#d9f5ea;color:#047857;font-size:.75rem;font-weight:900}.question-section,.example-section{margin-top:20px;padding:20px;border:1px solid var(--line);border-radius:16px;background:linear-gradient(180deg,#fff,#fbfdff)}.section-label{display:inline-flex;margin-bottom:6px;color:var(--primary);font-size:.68rem;font-weight:850;text-transform:uppercase;letter-spacing:.11em}.question-section h3,.example-section h3{margin:0 0 11px;font-size:1.01rem}.question-list{display:grid;gap:10px;margin:0;padding:0;counter-reset:question;list-style:none}.question-item{position:relative;padding:12px 13px 12px 46px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--ink-2);font-size:.86rem;counter-increment:question}.question-item:before{content:counter(question);position:absolute;left:12px;top:11px;width:24px;height:24px;display:grid;place-items:center;border-radius:8px;background:#edf4ff;color:var(--primary);font-size:.72rem;font-weight:850}.example-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px;margin-top:12px}.example-grid>div{padding:15px;border:1px solid var(--line);border-radius:13px;background:#fff}.example-grid strong{display:block;margin-bottom:6px;font-size:.82rem}.example-grid p{margin:0;color:var(--muted);font-size:.84rem}.example-solution{border-color:#bfdbfe!important;background:#f6faff!important}.example-warning{margin-top:12px;padding:12px 14px;border-left:4px solid #f59e0b;border-radius:10px;background:#fff8eb;color:#7c4a03;font-size:.82rem}.callout.practice{border-color:#bfe5dd;background:#f1fbf8}.callout.practice strong{color:#08786d}.article-callout{margin:18px 0;padding:17px 18px;border:1px solid #cfe0ff;border-left:4px solid var(--primary);border-radius:13px;background:#f5f9ff}.article-callout strong{display:block;margin-bottom:5px;font-size:.86rem}.article-callout p{margin:0;color:var(--ink-2);font-size:.86rem}.article-callout.warning{border-color:#fed7aa;border-left-color:#f59e0b;background:#fff8ed}.article-callout.success{border-color:#bbf7d0;border-left-color:#10b981;background:#f2fcf6}.reader-article .article-section>h2{scroll-margin-top:calc(var(--topbar) + 22px)}

@media(max-width:760px){.learning-grid,.example-grid{grid-template-columns:1fr}.question-section,.example-section{padding:16px}.deliverable-item,.study-check,.question-item{font-size:.82rem}}

@media print{
  @page{margin:14mm}
  body{background:#fff;color:#111;font-size:10.5pt}.sidebar,.topbar,.footer,.breadcrumbs,.lesson-rail,.reader-aside,.mobile-lesson-select,.btn,[data-print],.toast,.drawer-overlay{display:none!important}.app-main{margin-left:0!important;min-height:auto}.content{width:100%!important;max-width:none!important;padding:0!important;margin:0!important}.reader-layout,.summary-layout{display:block!important}.reader-article,.card,.article-section,.question-section,.example-section{box-shadow:none!important;break-inside:avoid;border-color:#d6d6d6!important}.reader-article{border:0!important}.lesson-header{padding:0 0 14px!important;background:#fff!important;color:#111!important}.lesson-header *{color:#111!important}.article-section{padding:15px 0!important;border-width:0 0 1px!important;border-radius:0!important}.article-table{font-size:8.7pt}.article-table th,.article-table td{padding:6px!important}.callout,.article-callout{break-inside:avoid}.page-title{font-size:24pt}.page-lead{color:#333}.content a{text-decoration:none;color:#111}.content a[href]:after{content:""}}
/* Ajustes de correspondencia con el marcado dinámico */
.deliverable-item:before,.study-check:before,.question-item:before{display:none}.deliverable-item svg,.study-check svg{width:18px;height:18px;flex:0 0 auto;margin-top:2px;color:var(--emerald)}.study-check svg{padding:3px;border-radius:6px;background:#d9f5ea}.question-item{display:grid;grid-template-columns:26px minmax(0,1fr);gap:10px;align-items:start;padding:12px 13px}.question-item>span{width:26px;height:26px;display:grid;place-items:center;border-radius:8px;background:#edf4ff;color:var(--primary);font-size:.72rem;font-weight:850}.question-item p{margin:2px 0 0}.example-grid span{display:block;color:var(--muted);font-size:.73rem;margin-bottom:5px}.example-solution{margin-top:12px;padding:15px;border:1px solid #bfdbfe;border-radius:13px;background:#f6faff}.example-solution strong{display:block;margin-bottom:5px;font-size:.82rem}.example-solution p{margin:0;color:var(--ink-2);font-size:.86rem}

/* v0.4.0 — consulta directa, lecturas extensas y biblioteca normativa */
.reference-card .btn{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.12);color:#dbeafe}.reference-card .btn:hover{background:rgba(37,99,235,.18);color:#fff}.consultation-hero{min-height:360px}.search-guide ol{margin:14px 0 0;padding-left:20px;color:#d5e2f2;font-size:.86rem}.search-guide li{margin:7px 0}.unit-intro{margin:-4px 0 16px;color:var(--muted);font-size:.88rem;max-width:850px}.topic-context{align-self:stretch;min-width:180px;border:1px solid rgba(255,255,255,.14);border-radius:18px;padding:18px;display:flex;flex-direction:column;justify-content:center;background:rgba(255,255,255,.07)}.topic-context span,.topic-context small{color:#b8cae0;font-size:.73rem}.topic-context strong{font-size:2.8rem;line-height:1;margin:7px 0;color:#fff}.compact-steps{padding-left:20px;margin:10px 0 0;color:var(--muted);font-size:.84rem}.compact-steps li{margin:7px 0}.related-section{margin-top:28px}.article-toc{display:grid;grid-template-columns:220px minmax(0,1fr);gap:22px;padding:22px 24px;margin-bottom:16px;border:1px solid var(--line);border-radius:16px;background:linear-gradient(135deg,#f8fbff,#f5fbf9)}.article-toc h2{margin:5px 0 0;font-size:1.15rem}.article-toc nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px}.article-toc a,.mini-toc a{display:flex;align-items:flex-start;gap:9px;text-decoration:none;color:var(--ink-2);font-size:.8rem;line-height:1.35;padding:8px 9px;border-radius:9px}.article-toc a:hover,.mini-toc a:hover{background:#fff;color:var(--primary)}.article-toc a span{color:var(--primary);font-weight:850;font-size:.69rem;margin-top:1px}.mini-toc{display:grid;gap:3px;max-height:320px;overflow:auto}.mini-toc a{padding:6px 7px;font-size:.73rem}.mini-toc a span{color:var(--primary);font-weight:800}.sticky-outline{position:sticky;top:calc(var(--topbar) + 16px)}.reader-article .article-section{scroll-margin-top:calc(var(--topbar) + 20px)}.final-validation{border-left:4px solid var(--teal)!important;background:#f6fcfa!important}.related-link{width:100%;border:0;border-bottom:1px solid var(--line);background:transparent;padding:9px 0;display:flex;align-items:flex-start;justify-content:space-between;gap:8px;text-align:left;cursor:pointer;color:var(--ink-2);font-size:.78rem}.related-link:last-child{border-bottom:0}.related-link:hover{color:var(--primary)}.related-link svg{width:15px;flex:0 0 auto}.norm-guide{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:0 0 18px}.norm-guide article{padding:15px;border:1px solid var(--line);border-radius:13px;background:#fff}.norm-guide strong{font-size:.82rem}.norm-guide p{margin:5px 0 0;color:var(--muted);font-size:.76rem}.norm-filters{flex-wrap:wrap}.norm-filters .filter-input{min-width:280px}.norm-caution{display:flex;align-items:flex-start;gap:7px;margin:13px 0 10px;padding:9px 10px;border-radius:9px;background:var(--warning-bg);color:#8a4b08;font-size:.72rem}.norm-caution svg{width:15px;flex:0 0 auto;margin-top:1px}.rich-glossary{grid-template-columns:repeat(2,minmax(0,1fr))}.glossary-item.rich{padding:18px}.glossary-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;margin-bottom:8px}.glossary-head strong{font-size:1rem}.glossary-detail,.glossary-example{margin-top:13px;padding-top:12px;border-top:1px solid var(--line)}.glossary-detail>span,.glossary-example>span{display:block;color:var(--primary);font-size:.67rem;font-weight:850;text-transform:uppercase;letter-spacing:.09em;margin-bottom:4px}.glossary-detail p,.glossary-example p{color:var(--ink-2);font-size:.8rem}.glossary-example{background:#f8fafc;margin:12px -7px -7px;padding:12px 7px 7px;border-radius:9px}.article-section p{font-size:.94rem;line-height:1.78}.article-section li{margin:8px 0;line-height:1.65}.reader-article{min-width:0}.reader-article .lesson-header p{max-width:850px}.reader-article .article-section h2{font-size:1.28rem;letter-spacing:-.02em}.curriculum .lesson-row span>span{line-height:1.45}.topic-card p{display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden}.filters-bar select,.filters-bar input{min-height:44px}
@media(max-width:1180px){.norm-guide{grid-template-columns:repeat(2,minmax(0,1fr))}.article-toc{grid-template-columns:1fr}.article-toc nav{grid-template-columns:repeat(2,minmax(0,1fr))}.sticky-outline{position:static}}
@media(max-width:760px){.rich-glossary{grid-template-columns:1fr}.article-toc nav{grid-template-columns:1fr}.article-toc{padding:18px}.norm-guide{grid-template-columns:1fr}.topic-context{min-width:0}.norm-filters .filter-input{min-width:100%}}
@media print{.article-toc,.sticky-outline{display:none!important}.article-section p{font-size:10.5pt;line-height:1.55}}