/* ===== Literatura Mundial Moderna — Plataforma de estudio ===== */
:root{
  --bg:#f4f1ea; --panel:#fffdf8; --panel2:#faf7f0; --ink:#23201b; --muted:#6b6357; --line:#e2dbcd;
  --accent:#7b1e3b; --accent-ink:#fff; --accent2:#1f5673; --p1:#1f5673; --p2:#7b1e3b;
  --gold:#9a6b00; --ok:#2e7d4f; --chip:#efe9dc; --shadow:0 1px 3px rgba(0,0,0,.08),0 10px 28px rgba(0,0,0,.07);
  --shadow-sm:0 1px 2px rgba(0,0,0,.06);
  --sidebar-w:248px;
  --u1:#1f5673; --u2:#5b7a3a; --u3:#9a6b00; --u4:#7b1e3b;
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,"Times New Roman",serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
[data-theme="dark"]{
  --bg:#131110; --panel:#1d1a17; --panel2:#211d19; --ink:#ece6da; --muted:#a59b88; --line:#332e25;
  --accent:#e08aa0; --accent-ink:#241017; --accent2:#7fb4cf; --p1:#7fb4cf; --p2:#e08aa0; --gold:#d9a93a;
  --chip:#2a261f; --shadow:0 1px 3px rgba(0,0,0,.5),0 10px 28px rgba(0,0,0,.35); --shadow-sm:0 1px 2px rgba(0,0,0,.4);
  --u1:#7fb4cf; --u2:#8fc36a; --u3:#d9a93a; --u4:#e08aa0;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:var(--accent2)}
button{font-family:inherit}
::selection{background:color-mix(in srgb,var(--accent) 30%,transparent)}

/* ===== Shell layout ===== */
.shell{display:flex;min-height:100vh}
.sidebar{
  width:var(--sidebar-w);flex:0 0 var(--sidebar-w);background:var(--panel2);border-right:1px solid var(--line);
  display:flex;flex-direction:column;gap:18px;padding:18px 14px;position:sticky;top:0;height:100vh;overflow-y:auto;z-index:60;
}
.brand{display:flex;align-items:center;gap:10px;padding:2px 4px 8px;border-bottom:1px solid var(--line)}
.brand-mark{font-family:var(--serif);font-weight:700;font-size:1.3rem;color:var(--accent);letter-spacing:-.5px;flex:0 0 auto}
.brand-mark span{color:var(--accent2)}
.brand-title{font-family:var(--serif);font-weight:700;font-size:.86rem;line-height:1.15}
.brand-sub{font-size:.66rem;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;margin-top:2px}

.nav{display:flex;flex-direction:column;gap:2px}
.nav-item{display:flex;align-items:center;gap:10px;border:0;background:transparent;color:var(--muted);text-align:left;padding:10px 12px;border-radius:10px;font-size:.9rem;font-weight:600;cursor:pointer;transition:background .12s,color .12s}
.nav-item .ic{font-size:1.05rem;width:20px;text-align:center}
.nav-item:hover{background:color-mix(in srgb,var(--accent) 8%,transparent);color:var(--ink)}
.nav-item.active{background:var(--accent);color:var(--accent-ink)}

.side-filters{margin-top:auto;padding-top:14px;border-top:1px solid var(--line)}
.side-label{font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:7px}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:999px;overflow:hidden;background:var(--panel)}
.seg-block{display:flex;width:100%}
.seg button{border:0;background:transparent;color:var(--muted);padding:7px 10px;font-size:.78rem;cursor:pointer;font-weight:600;flex:1}
.seg button.active{background:var(--accent);color:var(--accent-ink)}
.side-hint{font-size:.7rem;color:var(--muted);margin-top:8px;line-height:1.4}
.side-bottom{display:flex;align-items:center;justify-content:space-between;padding-top:10px}
.side-count{font-size:.72rem;color:var(--muted);font-weight:600}
.iconbtn{border:1px solid var(--line);background:var(--panel);color:var(--ink);width:34px;height:34px;border-radius:50%;cursor:pointer;font-size:.95rem}

.main-col{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{position:sticky;top:0;z-index:40;background:color-mix(in srgb,var(--bg) 90%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);display:flex;align-items:center;gap:14px;padding:14px 26px}
.view-title{font-family:var(--serif);font-size:1.3rem;margin:0;flex:0 0 auto}
.search{margin-left:auto;flex:0 1 280px;padding:8px 14px;border:1px solid var(--line);border-radius:999px;background:var(--panel);color:var(--ink);font-size:.86rem}
.hamburger{display:none;border:0;background:transparent;color:var(--ink);font-size:1.2rem;cursor:pointer}
.sidebar-scrim{display:none}

.filterbar{padding:0 26px;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.filterbar:empty{display:none}
.fchip{border:1px solid var(--line);background:var(--panel);color:var(--muted);border-radius:999px;padding:6px 13px;font-size:.78rem;font-weight:600;cursor:pointer;white-space:nowrap;transition:all .12s}
.fchip:hover{border-color:var(--accent)}
.fchip.on{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.fchip.u1.on{background:var(--u1);border-color:var(--u1)}
.fchip.u2.on{background:var(--u2);border-color:var(--u2)}
.fchip.u3.on{background:var(--u3);border-color:var(--u3)}
.fchip.u4.on{background:var(--u4);border-color:var(--u4)}
.fbar-sep{width:1px;height:20px;background:var(--line);margin:0 2px}
.fbar-clear{font-size:.76rem;color:var(--muted);background:none;border:0;cursor:pointer;text-decoration:underline;text-underline-offset:2px}

.content{padding:20px 26px 90px;max-width:1180px}
.view{display:none;animation:fade .25s ease}
.view.active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}

/* ===== Dashboard ===== */
.dash-hero{background:linear-gradient(135deg,color-mix(in srgb,var(--accent) 10%,transparent),color-mix(in srgb,var(--accent2) 8%,transparent));border:1px solid var(--line);border-radius:18px;padding:30px 32px;margin-bottom:22px}
.dash-hero h2{font-family:var(--serif);font-size:1.7rem;margin:0 0 6px}
.dash-hero p{color:var(--muted);margin:0;max-width:640px}
.dash-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:12px;margin:22px 0}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:16px;text-align:center;box-shadow:var(--shadow-sm)}
.stat .n{font-family:var(--serif);font-size:1.7rem;color:var(--accent);font-weight:700}
.stat .l{font-size:.74rem;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;margin-top:2px}
.dash-actions{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin:22px 0}
.dash-card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px;cursor:pointer;transition:transform .12s,border-color .12s;box-shadow:var(--shadow-sm)}
.dash-card:hover{transform:translateY(-2px);border-color:var(--accent)}
.dash-card .ic{font-size:1.5rem}
.dash-card h3{font-family:var(--serif);margin:8px 0 3px;font-size:1.05rem}
.dash-card p{margin:0;font-size:.82rem;color:var(--muted)}
.dash-units{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px}
.unit-pill{display:flex;align-items:center;gap:8px;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:10px 14px;font-size:.82rem;flex:1 1 200px}
.unit-pill .dot{width:9px;height:9px;border-radius:50%;flex:0 0 auto}

/* ===== Cards & chips (resúmenes grid) ===== */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-sm);padding:16px;cursor:pointer;transition:transform .12s,border-color .12s}
.card:hover{transform:translateY(-2px);border-color:var(--accent)}
.card h3{font-family:var(--serif);margin:.1rem 0 .15rem;font-size:1.12rem;line-height:1.2}
.card .au{color:var(--muted);font-size:.86rem}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.chip{font-size:.7rem;padding:3px 9px;border-radius:999px;background:var(--chip);color:var(--muted);font-weight:600;letter-spacing:.2px}
.chip.p1{background:color-mix(in srgb,var(--p1) 18%,transparent);color:var(--p1)}
.chip.p2{background:color-mix(in srgb,var(--p2) 18%,transparent);color:var(--p2)}
.chip.u{background:color-mix(in srgb,var(--gold) 20%,transparent);color:var(--gold)}
.chip.u1{background:color-mix(in srgb,var(--u1) 18%,transparent);color:var(--u1)}
.chip.u2{background:color-mix(in srgb,var(--u2) 18%,transparent);color:var(--u2)}
.chip.u3{background:color-mix(in srgb,var(--u3) 18%,transparent);color:var(--u3)}
.chip.u4{background:color-mix(in srgb,var(--u4) 18%,transparent);color:var(--u4)}
.muted{color:var(--muted)}
.hint{color:var(--muted);font-size:.86rem;margin:.2rem 0 1rem}

/* ===== Work detail ===== */
.detail{background:var(--panel);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:24px;max-width:820px;margin:0 auto}
.detail h1{font-family:var(--serif);font-size:1.7rem;margin:.2rem 0 .1rem;line-height:1.15}
.detail .sub{color:var(--muted);margin-bottom:6px}
.back{display:inline-flex;align-items:center;gap:6px;background:none;border:0;color:var(--accent2);cursor:pointer;font-weight:600;font-size:.9rem;margin-bottom:14px;padding:0}
.englob{background:color-mix(in srgb,var(--accent) 7%,transparent);border:1px solid color-mix(in srgb,var(--accent) 25%,transparent);border-radius:12px;padding:16px;margin:16px 0}
.englob .row{margin:.45rem 0}
.englob b{color:var(--accent)}
.sec{margin:22px 0}
.sec > h2{font-family:var(--serif);font-size:1.15rem;border-bottom:2px solid var(--line);padding-bottom:5px;margin-bottom:10px;color:var(--accent)}
.sub-h{font-weight:700;margin:.7rem 0 .2rem}
.theme-item{margin:.5rem 0;padding-left:12px;border-left:3px solid var(--line)}
.theme-item b{color:var(--ink)}
.crit{margin:.6rem 0;padding:10px 12px;background:var(--chip);border-radius:10px}
.crit .who{font-weight:700;color:var(--accent2);display:block;margin-bottom:3px}
ol.events{margin:0;padding-left:0;list-style:none;counter-reset:ev}
ol.events li{counter-increment:ev;position:relative;padding:7px 0 7px 52px;border-bottom:1px dashed var(--line)}
ol.events li::before{content:counter(ev);position:absolute;left:0;top:7px;width:24px;height:24px;border-radius:50%;background:var(--accent);color:var(--accent-ink);font-size:.75rem;font-weight:700;display:flex;align-items:center;justify-content:center}
ol.events .loc{display:inline-block;font-size:.7rem;font-weight:700;color:var(--gold);text-transform:uppercase;letter-spacing:.3px;margin-right:6px}
ol.events li.ev-sec{counter-increment:none;list-style:none;padding:14px 0 4px;border-bottom:0;font-family:var(--serif);font-weight:700;font-size:.82rem;letter-spacing:.6px;text-transform:uppercase;color:var(--accent2)}
ol.events li.ev-sec::before{display:none}
ol.events em{color:var(--muted);font-style:italic}
.consigna{border:1px solid var(--line);border-radius:10px;padding:12px;margin:.5rem 0}
.op-tag{display:inline-block;font-size:.66rem;font-weight:800;letter-spacing:.4px;text-transform:uppercase;padding:2px 8px;border-radius:6px;background:color-mix(in srgb,var(--accent2) 16%,transparent);color:var(--accent2);margin-bottom:6px}
.reveal{margin-top:8px;font-size:.9rem;color:var(--muted);display:none}
.reveal.show{display:block}
.reveal-block{margin-top:10px;padding:10px 14px;border-radius:10px;background:var(--chip)}
.reveal-block+.reveal-block{margin-top:8px}
.reveal-block .reveal-h{font-size:.72rem;font-weight:800;letter-spacing:.04em;text-transform:uppercase;color:var(--accent2);margin-bottom:4px}
.reveal-block.reveal-model{background:color-mix(in srgb,var(--ok) 8%,transparent);border:1px solid color-mix(in srgb,var(--ok) 25%,transparent)}
.reveal-block.reveal-model .reveal-h{color:var(--ok)}
.reveal-block p,.reveal-block li{color:var(--ink);font-size:.88rem;line-height:1.5}
.linkbtn{background:none;border:1px dashed var(--line);border-radius:8px;color:var(--accent2);cursor:pointer;font-size:.8rem;padding:4px 10px;font-weight:600}

/* ===== Flashcards ===== */
.fc-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:14px}
.counter{font-variant-numeric:tabular-nums;color:var(--muted);font-weight:600}
.flashcard{perspective:1200px;max-width:640px;margin:10px auto}
.fc-inner{position:relative;min-height:300px;transition:transform .5s;transform-style:preserve-3d;cursor:pointer}
.fc-inner.flip{transform:rotateY(180deg)}
.fc-face{position:absolute;inset:0;backface-visibility:hidden;background:var(--panel);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:26px;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;overflow:auto}
.fc-front .term{font-family:var(--serif);font-size:1.5rem;line-height:1.25}
.fc-back{transform:rotateY(180deg);justify-content:flex-start;text-align:left}
.fc-back .def{font-size:1rem}
.fc-fliphint{color:var(--muted);font-size:.78rem;margin-top:16px}
.fc-actions{display:flex;justify-content:center;gap:10px;margin-top:16px}
.btn{border:1px solid var(--line);background:var(--panel);color:var(--ink);border-radius:10px;padding:10px 16px;font-weight:600;cursor:pointer;font-size:.9rem}
.btn.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.btn.ok{background:var(--ok);color:#fff;border-color:var(--ok)}
.btn:disabled{opacity:.4;cursor:default}
select{padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:var(--panel);color:var(--ink);font-size:.86rem}
.fc-mode{display:inline-flex;border:1px solid var(--line);border-radius:999px;overflow:hidden}
.fc-mode button{border:0;background:var(--panel);color:var(--muted);padding:8px 14px;font-size:.82rem;font-weight:600;cursor:pointer}
.fc-mode button.active{background:var(--accent);color:var(--accent-ink)}

/* ===== Preguntas de examen ===== */
.sim-card{background:var(--panel);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:22px;max-width:740px;margin:0 auto}
.sim-q{font-family:var(--serif);font-size:1.2rem;line-height:1.35;margin:10px 0}
.sim-meta{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:6px;align-items:center}
textarea{width:100%;min-height:120px;border:1px solid var(--line);border-radius:10px;padding:12px;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:.95rem;resize:vertical}
.badge-pts{font-size:.68rem;font-weight:800;padding:2px 8px;border-radius:6px;background:color-mix(in srgb,var(--ok) 18%,transparent);color:var(--ok)}
.badge-real{font-size:.68rem;font-weight:800;padding:2px 8px;border-radius:6px;background:color-mix(in srgb,var(--gold) 22%,transparent);color:var(--gold);display:inline-flex;align-items:center;gap:3px}
.pq-list{max-width:780px;margin:0 auto;display:flex;flex-direction:column;gap:10px}
.pq-item{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px 16px;box-shadow:var(--shadow-sm)}
.pq-item .sim-q{font-size:1.02rem;margin:6px 0}
.empty-state{text-align:center;padding:50px 20px;color:var(--muted)}
.empty-state .ic{font-size:2.2rem;margin-bottom:8px}

/* ===== Comparaciones / Conceptos ===== */
.concept{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin:10px 0;box-shadow:var(--shadow-sm)}
.concept .term{font-family:var(--serif);font-weight:700;font-size:1.08rem}
.concept .where{font-size:.74rem;color:var(--muted);margin-top:8px}

.notice{background:color-mix(in srgb,var(--gold) 12%,transparent);border:1px solid color-mix(in srgb,var(--gold) 35%,transparent);border-radius:10px;padding:10px 14px;font-size:.85rem;margin:14px 0}
footer{border-top:1px solid var(--line);color:var(--muted);font-size:.8rem;text-align:center;padding:22px}

/* ===== Responsive ===== */
@media (max-width:900px){
  .sidebar{position:fixed;left:-100%;top:0;height:100vh;transition:left .2s ease;box-shadow:0 0 40px rgba(0,0,0,.3)}
  .sidebar.open{left:0}
  .hamburger{display:block}
  .sidebar-scrim.show{display:block;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:55}
  .topbar{padding:12px 16px}
  .filterbar{padding:0 16px}
  .content{padding:16px 16px 90px}
  .view-title{font-size:1.1rem}
  .search{flex:1 1 auto;max-width:none}
}
@media (max-width:560px){.detail{padding:16px}}
@media print{.sidebar,.topbar,.filterbar,.fc-actions,.linkbtn{display:none}.view{display:block!important}.main-col{width:100%}}