:root{--navy:#071d33;--navy2:#0b2a48;--red:#ef2b2d;--bg:#f4f7fb;--card:#fff;--text:#142033;--muted:#6b7a90;--line:#dfe7f1;--shadow:0 8px 30px rgba(15,35,60,.08);--radius:18px;--sidebar:270px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--text)}button,input,select{font:inherit}button{cursor:pointer}.hidden{display:none!important}
#app{min-height:100vh;display:grid;grid-template-columns:var(--sidebar) 1fr}.sidebar{background:linear-gradient(180deg,var(--navy),#06172a 85%);color:#fff;height:100vh;position:sticky;top:0;overflow:auto;padding:22px 14px 26px;scrollbar-width:thin}.brand{padding:0 10px 18px}.brand-logo{font-size:34px;font-weight:900;letter-spacing:-1.8px}.brand-logo .opo{color:var(--red)}.brand-sub{font-size:14px;line-height:1.35;font-weight:700}.brand-year{color:var(--red)}.side-home,.side-link{width:100%;border:0;color:#dfe9f4;background:transparent;display:flex;align-items:center;gap:10px;text-align:left;border-radius:11px;padding:9px 10px;margin:2px 0}.side-home{background:linear-gradient(90deg,#ed3436,#f0282b);color:#fff;font-weight:800;padding:12px}.side-link:hover,.side-link.active{background:rgba(255,255,255,.1);color:#fff}.side-section{font-size:11px;text-transform:uppercase;letter-spacing:.7px;color:#8fa5bc;font-weight:800;padding:15px 9px 5px}.side-part{font-size:12px;color:#b9c9da;padding:5px 9px}.num{display:inline-grid;place-items:center;min-width:23px;height:23px;border-radius:50%;background:rgba(255,255,255,.12);font-size:11px;font-weight:900}.side-link.active .num{background:var(--red)}.side-tools{border-top:1px solid rgba(255,255,255,.08);margin-top:12px;padding-top:8px}.manual-note{border:1px solid rgba(250,204,21,.4);background:rgba(250,204,21,.06);border-radius:13px;padding:12px;margin:16px 2px 0;color:#f8d36b}.manual-note p{color:#d6e0ea;font-size:11px;line-height:1.45}.manual-note button{width:100%;padding:9px;border-radius:8px;border:1px solid rgba(255,255,255,.2);background:transparent;color:#fff}
.shell{min-width:0}.topbar{height:84px;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);display:flex;align-items:center;gap:18px;padding:0 28px;position:sticky;top:0;z-index:20}.menu-btn{border:1px solid var(--line);background:#fff;border-radius:50%;width:42px;height:42px;font-size:20px}.welcome{min-width:230px}.welcome strong{font-size:18px}.welcome span{display:block;color:var(--muted);font-size:13px;margin-top:3px}.search{margin-left:auto;max-width:360px;position:relative;flex:1}.search input{width:100%;border:1px solid var(--line);background:#f7f9fc;border-radius:12px;padding:12px 42px 12px 14px;outline:none}.search button{position:absolute;right:6px;top:5px;border:0;background:transparent;font-size:20px}.top-action{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:#fff}.avatar{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,#f4d4bd,#8a5d42);font-size:22px}.main{padding:24px 28px 100px;max-width:1500px;width:100%;margin:auto}.page-title{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:18px}.page-title h1{margin:0;font-size:30px;letter-spacing:-.7px}.page-title p{margin:5px 0 0;color:var(--muted)}.btn{border:0;border-radius:11px;background:var(--navy2);color:#fff;padding:11px 16px;font-weight:800}.btn.red{background:var(--red)}.btn.light{background:#fff;color:var(--navy2);border:1px solid var(--line)}.btn.small{padding:8px 11px;font-size:12px}.grid{display:grid;gap:16px}.stats-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:17px;box-shadow:var(--shadow);position:relative;overflow:hidden}.stat:after{content:"";position:absolute;width:90px;height:90px;border-radius:50%;right:-25px;top:-35px;background:var(--tint,#e0f2fe)}.stat-label{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:12px;position:relative;z-index:1}.stat-icon{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;color:#fff;background:var(--accent,#2563eb)}.stat-value{font-size:27px;font-weight:900;margin:12px 0 3px;position:relative;z-index:1}.stat-sub{font-size:12px;color:var(--muted)}.section-head{display:flex;align-items:center;justify-content:space-between;margin:25px 2px 12px}.section-head h2{font-size:19px;margin:0}.link-btn{border:0;background:transparent;color:#1262bc;font-weight:800}.topic-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.topic-card{border:1px solid var(--line);background:linear-gradient(145deg,#fff,var(--tint,#eff6ff));border-radius:18px;padding:16px;min-height:190px;display:grid;grid-template-columns:1fr 110px;grid-template-rows:auto 1fr auto;gap:5px;box-shadow:var(--shadow);transition:.2s}.topic-card:hover{transform:translateY(-3px);box-shadow:0 14px 35px rgba(15,35,60,.12)}.topic-number{font-size:25px;font-weight:900;color:var(--accent)}.topic-name{font-weight:900;font-size:17px;line-height:1.15}.topic-illustration{grid-column:2;grid-row:1/3;font-size:70px;display:grid;place-items:center;filter:drop-shadow(0 8px 7px rgba(0,0,0,.12))}.progress-wrap{grid-column:1/3}.progress-meta{display:flex;justify-content:space-between;font-size:11px;color:var(--muted)}.bar{height:7px;background:rgba(148,163,184,.22);border-radius:999px;overflow:hidden;margin-top:6px}.bar span{display:block;height:100%;background:var(--accent);border-radius:inherit}.quick-grid{grid-template-columns:repeat(7,minmax(95px,1fr))}.quick{border:1px solid var(--line);background:#fff;border-radius:15px;padding:13px 8px;text-align:center;box-shadow:var(--shadow);min-height:105px}.quick i{font-style:normal;font-size:31px;display:block;margin-bottom:7px}.quick span{font-size:12px;font-weight:800}.feature{background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px;display:grid;grid-template-columns:340px 1fr 150px;gap:18px;box-shadow:var(--shadow)}.case-visual{border-radius:14px;min-height:210px;background:linear-gradient(135deg,#344c5e,#182938);color:#fff;display:grid;place-items:center;position:relative;overflow:hidden}.case-visual .machine{font-size:88px}.case-visual:before,.case-visual:after{content:"";position:absolute;border:8px solid #718b9a;border-radius:20px}.case-visual:before{width:80%;height:40%;top:25%;left:-20%}.case-visual:after{width:55%;height:60%;right:-20%;top:8%}.case-body h3{font-size:22px;margin:8px 0}.tag{display:inline-block;padding:5px 9px;border-radius:999px;background:#e1effe;color:#1262bc;font-size:11px;font-weight:800}.case-body ul{padding-left:18px;color:var(--muted);line-height:1.7;font-size:13px}.case-side{background:#effaf4;border:1px solid #d7efe0;border-radius:12px;padding:13px;font-size:12px}.stars{color:#f5b21a;font-size:18px}.two-col{grid-template-columns:1fr 1fr}.panel{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px;box-shadow:var(--shadow)}.panel h3{margin:0 0 12px}.activity{display:flex;align-items:center;gap:10px;padding:9px 0;border-bottom:1px solid #edf1f6}.activity:last-child{border:0}.activity-icon{width:32px;height:32px;border-radius:9px;display:grid;place-items:center;background:#f1eefe}.activity-main{flex:1}.activity-main strong{display:block;font-size:12px}.activity-main span{font-size:10px;color:var(--muted)}.score{font-size:12px;font-weight:900;color:#16803c;background:#eaf8ef;padding:5px 8px;border-radius:7px}.chart{height:210px;position:relative;padding:20px 10px 25px 38px}.chart-grid{position:absolute;inset:20px 10px 25px 38px;background:repeating-linear-gradient(to bottom,transparent 0,transparent calc(25% - 1px),#e5ebf2 25%)}.chart svg{position:relative;width:100%;height:100%;overflow:visible}.chart-labels{display:flex;justify-content:space-between;color:var(--muted);font-size:10px}.gallery{grid-template-columns:repeat(4,1fr)}.thumb{background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px;text-align:center}.thumb-icon{height:75px;border-radius:10px;background:linear-gradient(135deg,#dce7f1,#fff);display:grid;place-items:center;font-size:42px}.thumb strong{font-size:11px;display:block;margin-top:6px}.motivation{margin-top:16px;background:linear-gradient(90deg,#ffe5e5,#ffd2d2);border:1px solid #ffc4c4;border-radius:12px;display:flex;align-items:center;justify-content:center;gap:25px;padding:11px;color:#c51f25;font-weight:900}.bottom-nav{display:none}
/* topic page */.topic-hero{background:linear-gradient(135deg,var(--accent),color-mix(in srgb,var(--accent) 65%,#06182b));color:#fff;border-radius:22px;padding:24px;display:grid;grid-template-columns:1fr 180px;gap:20px}.topic-hero h1{margin:0;font-size:31px}.topic-hero p{line-height:1.6;opacity:.9}.hero-icon{font-size:100px;display:grid;place-items:center}.topic-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:13px}.topic-actions button{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.3);border-radius:10px;padding:9px 12px}.tabs{display:flex;gap:8px;overflow:auto;margin:18px 0}.tab{border:1px solid var(--line);background:#fff;border-radius:999px;padding:9px 14px;white-space:nowrap}.tab.active{background:var(--navy2);color:#fff}.study-layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:18px}.study-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;margin-bottom:14px}.study-card h3{margin-top:0;color:var(--accent)}.study-card p{line-height:1.65}.study-card li{margin:7px 0;line-height:1.45}.sticky{position:sticky;top:105px;align-self:start}.fact{display:flex;gap:9px;margin:9px 0;font-size:13px}.fact:before{content:"✓";color:#16a34a;font-weight:900}.warning-list .fact:before{content:"!";color:#ef4444}.source-note{font-size:12px;color:var(--muted);line-height:1.5}.visual-board{background:linear-gradient(145deg,#f8fbff,#eef5fb);border:1px solid var(--line);border-radius:18px;padding:20px;min-height:340px}.diagram-flow{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;margin:40px 0}.flow-item{background:#fff;border:2px solid var(--accent);border-radius:13px;padding:14px 12px;text-align:center;min-width:105px;font-weight:900}.flow-arrow{font-size:24px;color:var(--accent)}.memory-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.memory{background:#fff;border-left:5px solid var(--accent);padding:15px;border-radius:12px;box-shadow:var(--shadow)}
/* test */.test-setup{max-width:800px;margin:auto}.setup-grid{grid-template-columns:repeat(2,1fr)}.select-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px}.select-card label{font-weight:800;display:block;margin-bottom:8px}.select-card select{width:100%;padding:11px;border:1px solid var(--line);border-radius:10px}.question-card{max-width:900px;margin:auto;background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px;box-shadow:var(--shadow)}.question-top{display:flex;justify-content:space-between;color:var(--muted);font-size:12px}.question-card h2{font-size:22px;line-height:1.45}.option{display:block;width:100%;text-align:left;border:1px solid var(--line);background:#fff;border-radius:12px;padding:14px;margin:10px 0}.option:hover{border-color:#8bb4df;background:#f7fbff}.option.selected{border-color:#2563eb;background:#eff6ff}.option.correct{border-color:#16a34a;background:#ecfdf3}.option.wrong{border-color:#ef4444;background:#fff1f2}.explanation{background:#f6f9fc;border-radius:12px;padding:14px;margin-top:14px;line-height:1.5}.test-footer{display:flex;justify-content:space-between;align-items:center;margin-top:16px}.test-progress{height:8px;background:#e9eef4;border-radius:999px;overflow:hidden}.test-progress span{display:block;height:100%;background:#2563eb}.result-card{text-align:center;max-width:700px;margin:auto}.result-score{font-size:70px;font-weight:900;color:#2563eb}.result-grid{grid-template-columns:repeat(3,1fr)}
/* case */.case-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px;margin-bottom:14px}.case-card details{margin-top:12px}.case-card summary{font-weight:900;cursor:pointer}.checklist label{display:flex;gap:8px;margin:10px 0}.case-solution{background:#edf9f1;border-left:4px solid #16a34a;padding:13px;margin-top:12px;border-radius:8px}
/* flashcards */.flash-grid{grid-template-columns:repeat(3,1fr)}.flashcard{height:190px;perspective:1000px;cursor:pointer}.flash-inner{position:relative;width:100%;height:100%;transition:transform .55s;transform-style:preserve-3d}.flashcard.flipped .flash-inner{transform:rotateY(180deg)}.flash-front,.flash-back{position:absolute;inset:0;backface-visibility:hidden;border-radius:16px;padding:18px;display:grid;place-items:center;text-align:center;box-shadow:var(--shadow);border:1px solid var(--line)}.flash-front{background:#fff;font-weight:900}.flash-back{background:var(--navy2);color:#fff;transform:rotateY(180deg)}
/* stats/history */.big-kpi{font-size:42px;font-weight:900}.history-row{display:grid;grid-template-columns:140px 1fr 100px;gap:12px;padding:12px 0;border-bottom:1px solid var(--line)}.source-link{display:block;padding:12px;background:#fff;border:1px solid var(--line);border-radius:12px;margin:8px 0;color:#1262bc;text-decoration:none}.empty{background:#fff;border:1px dashed #b9c7d7;border-radius:16px;padding:35px;text-align:center;color:var(--muted)}
/* dark */body.dark{--bg:#0c1623;--card:#132235;--text:#e9f0f7;--muted:#9eb0c2;--line:#27384b;--shadow:0 8px 30px rgba(0,0,0,.18)}body.dark .topbar{background:rgba(19,34,53,.94)}body.dark .search input,body.dark .menu-btn,body.dark .top-action,body.dark .btn.light,body.dark .tab,body.dark .quick,body.dark .option,body.dark .select-card,body.dark .study-card,body.dark .panel,body.dark .topic-card,body.dark .stat,body.dark .feature,body.dark .question-card,body.dark .case-card,body.dark .source-link,body.dark .thumb{background:#132235;color:var(--text)}body.dark .visual-board{background:#101f31}body.dark .flow-item,body.dark .memory,body.dark .flash-front{background:#172a40;color:#fff}
@media(max-width:1100px){:root{--sidebar:230px}.topic-grid{grid-template-columns:repeat(2,1fr)}.quick-grid{grid-template-columns:repeat(4,1fr)}.feature{grid-template-columns:260px 1fr}.case-side{display:none}.stats-grid{grid-template-columns:repeat(2,1fr)}.study-layout{grid-template-columns:1fr}.sticky{position:static}.flash-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){#app{display:block}.sidebar{position:fixed;z-index:80;width:290px;left:-310px;transition:.25s;box-shadow:15px 0 40px rgba(0,0,0,.3)}.sidebar.open{left:0}.topbar{height:68px;padding:0 12px}.welcome{min-width:0;flex:1}.welcome strong{font-size:15px}.search{display:none}.avatar,.top-action{display:none}.main{padding:15px 12px 90px}.page-title h1{font-size:24px}.stats-grid{grid-template-columns:repeat(2,1fr);gap:10px}.stat{padding:13px}.stat-value{font-size:21px}.topic-grid{grid-template-columns:1fr 1fr;gap:10px}.topic-card{grid-template-columns:1fr 68px;min-height:165px;padding:13px}.topic-illustration{font-size:48px}.topic-name{font-size:14px}.quick-grid{grid-template-columns:repeat(3,1fr);gap:9px}.feature{grid-template-columns:1fr}.case-visual{min-height:170px}.two-col,.gallery,.flash-grid,.setup-grid,.result-grid{grid-template-columns:1fr}.bottom-nav{display:grid;position:fixed;bottom:0;left:0;right:0;background:rgba(255,255,255,.96);border-top:1px solid var(--line);grid-template-columns:repeat(5,1fr);z-index:50;padding-bottom:env(safe-area-inset-bottom)}body.dark .bottom-nav{background:rgba(19,34,53,.97)}.bottom-nav button{border:0;background:transparent;padding:8px 2px;color:var(--muted);font-size:10px}.bottom-nav i{display:block;font-style:normal;font-size:21px}.bottom-nav button.active{color:var(--red)}.topic-hero{grid-template-columns:1fr;padding:18px}.topic-hero h1{font-size:24px}.hero-icon{display:none}.memory-grid{grid-template-columns:1fr}.history-row{grid-template-columns:90px 1fr 55px}.motivation{font-size:12px;gap:8px}.page-title .btn{display:none}}

.toast{position:fixed;right:20px;bottom:90px;background:#071d33;color:#fff;padding:12px 16px;border-radius:10px;opacity:0;transform:translateY(10px);transition:.2s;z-index:120;pointer-events:none}.toast.show{opacity:1;transform:none}

.topic-meta{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0;color:var(--muted);font-size:.88rem}.topic-meta span{background:var(--panel);border:1px solid var(--line);padding:7px 10px;border-radius:999px}.section-title-row{display:flex;align-items:flex-start;justify-content:space-between;gap:14px}.section-title-row h3{margin-bottom:8px}.section-check{border:1px solid var(--line);background:var(--panel);color:var(--muted);border-radius:9px;padding:7px 10px;cursor:pointer;white-space:nowrap}.section-check.done{background:#eaf8ef;color:#15803d;border-color:#9fd2ae}.topic-index ol{columns:2;column-gap:30px;margin-bottom:0}.topic-index li{margin:7px 0;break-inside:avoid}.topic-index a{color:var(--blue);text-decoration:none}.table-wrap{overflow:auto;margin-top:16px;border:1px solid var(--line);border-radius:12px}.table-wrap table{width:100%;border-collapse:collapse;min-width:560px}.table-wrap th,.table-wrap td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}.table-wrap th{background:var(--soft);color:var(--navy)}.table-wrap tr:last-child td{border-bottom:0}.study-card:target{outline:3px solid color-mix(in srgb,var(--accent) 30%,transparent);scroll-margin-top:90px}
@media(max-width:700px){.topic-index ol{columns:1}.section-title-row{display:block}.section-check{margin-bottom:8px}}

/* V3 · prioridad y trazabilidad */
.muted{color:var(--muted);font-size:13px;margin:4px 0 0}.priority-dashboard{margin-top:18px}.priority-summary{grid-template-columns:repeat(3,minmax(0,1fr))}.priority-box{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:7px}.priority-box strong{font-size:12px;text-transform:uppercase;letter-spacing:.5px}.priority-box span{font-size:17px;font-weight:850}.priority-box small{color:var(--muted);line-height:1.45}.priority-box.common{border-top:4px solid #ef2b2d}.priority-box.specific{border-top:4px solid #6d38bd}.priority-box.tribunal{border-top:4px solid #0f8d80}.priority-badge{display:inline-flex;align-items:center;width:max-content;padding:4px 8px;border-radius:999px;font-size:10px;font-weight:950;letter-spacing:.45px;border:1px solid transparent}.priority-maxima{color:#a3161a;background:#ffe5e5;border-color:#ffc7c8}.priority-alta{color:#754800;background:#fff2c8;border-color:#f1d479}.priority-media{color:#1f5c44;background:#e5f7ee;border-color:#bde6d1}.topic-priority{grid-column:1;align-self:end}.topic-card .topic-priority{margin-top:4px}.priority-topic p{font-size:13px;line-height:1.5}.priority-topic small{color:var(--muted);line-height:1.45;display:block}.notice{border:1px solid #cbddee;background:#eff7ff;border-radius:12px;padding:13px 15px;line-height:1.55}.notice.evidence{border-color:#bfd8ca;background:#effaf4}.notice.warning{border-color:#ecd28a;background:#fff8df}.common-bars{display:grid;gap:15px;margin:18px 0}.common-row{display:grid;grid-template-columns:minmax(220px,1.3fr) minmax(180px,2fr) 110px;gap:15px;align-items:center}.common-row div:first-child{display:flex;flex-direction:column}.common-row span{color:var(--muted);font-size:12px}.common-row .bar span{background:linear-gradient(90deg,#ef2b2d,#f28c16)}.common-row b{text-align:right}.tier{display:grid;grid-template-columns:90px 1fr;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}.tier:last-child{border:0}.tier p{margin:6px 0 0;color:var(--muted);line-height:1.5}.question-top span:last-child{font-size:11px}.result-grid{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.priority-summary{grid-template-columns:1fr}.common-row{grid-template-columns:1fr}.common-row b{text-align:left}.result-grid{grid-template-columns:repeat(2,1fr)}}


/* V4 · Cuenta y sincronización */
.sync-pill{border:1px solid var(--line);border-radius:999px;padding:9px 12px;background:var(--card);font-weight:800;white-space:nowrap;cursor:pointer;color:var(--text)}
.sync-pill.ok{color:#13733a;background:#edf9f1;border-color:#bde4c9}.sync-pill.pending{color:#9a6200;background:#fff8e5;border-color:#ecd18a}.sync-pill.local{color:#526173;background:#f3f6f9}
.auth-modal{position:fixed;inset:0;background:rgba(2,18,33,.72);display:none;align-items:center;justify-content:center;padding:18px;z-index:9999;backdrop-filter:blur(7px)}.auth-modal.show{display:flex}
.auth-box{width:min(430px,100%);background:var(--card);color:var(--text);border-radius:22px;padding:28px;box-shadow:0 28px 80px rgba(0,0,0,.34);position:relative}.auth-box .brand-logo{font-size:34px;margin-bottom:8px}.auth-box h2{margin:6px 0}.auth-box p{color:var(--muted);line-height:1.5}.auth-box label{display:block;font-weight:800;margin:14px 0 6px}.auth-box input{display:block;width:100%;margin-top:7px;padding:13px;border:1px solid var(--line);border-radius:11px;background:var(--bg);color:var(--text);font-size:16px}.auth-box form .btn{width:100%;margin-top:16px}.auth-close{position:absolute;right:14px;top:10px;border:0;background:transparent;color:var(--muted);font-size:30px;cursor:pointer}.auth-error{background:#fff0f0;color:#a32020;border:1px solid #edb9b9;padding:10px 12px;border-radius:10px;margin:12px 0}.local-link{display:block;margin:16px auto 10px}.auth-box small{display:block;color:var(--muted);text-align:center;line-height:1.4}.account-card .btn{margin:5px 5px 5px 0}
@media(max-width:760px){.sync-pill{font-size:0;padding:10px}.sync-pill::first-letter{font-size:18px}.topbar .search{display:none}}