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var(--gilt-line);backface-visibility:hidden;flex-direction:column;grid-area:1/1;align-items:center;gap:12px;padding:28px 24px 18px;display:flex}.fc-back{background:var(--leaf-2);box-shadow:var(--sh-2), inset 0 0 0 1px var(--gilt-line), inset 0 0 0 7px var(--leaf-2), inset 0 0 0 8px var(--gilt-line);transform:rotateY(180deg)}.fc-k{font-family:var(--f-book);letter-spacing:.16em;color:var(--rubric);font-size:1rem;font-variant-caps:all-small-caps;font-weight:500}.fc-back .fc-k{color:var(--sage)}.fc-q{font-family:var(--f-book);text-wrap:balance;font-size:1.36rem;font-weight:500;line-height:1.38}.fc-a{font-family:var(--f-book);text-wrap:pretty;font-size:1.2rem;line-height:1.5}.fc-orn{font-family:var(--f-orn);color:var(--gilt);font-size:1.05rem;line-height:1}.fc-foot{width:100%;font:500 11.5px/1.2 var(--f-ui);color:var(--ink-3);justify-content:space-between;gap:10px;margin-top:auto;display:flex}.fc-actions{grid-template-columns:1fr 1fr;gap:10px;margin-top:16px;display:grid}.btn{font:600 14px/1 var(--f-ui);background:var(--leaf);color:var(--ink);box-shadow:var(--sh-1);cursor:pointer;border:0;border-radius:999px;justify-content:center;align-items:center;gap:8px;min-height:46px;padding:13px 18px;display:inline-flex}.btn:disabled{opacity:.45;cursor:default;box-shadow:none}.btn-primary{background:var(--rubric);color:var(--leaf)}.btn-again{color:var(--rose);background:var(--rose-soft)}.btn-ok{color:var(--sage);background:var(--sage-soft)}.done{text-align:center;background:var(--leaf);border-radius:var(--r-lg);box-shadow:var(--sh-2);padding:34px 20px}.done-k{font-family:var(--f-book);letter-spacing:.16em;color:var(--sage);margin:0;font-size:1.02rem;font-variant-caps:all-small-caps}.done-n{font-family:var(--f-display);margin:6px 0 20px;font-size:1.9rem;font-weight:600;line-height:1.15}.done-act{flex-wrap:wrap;justify-content:center;gap:10px;display:flex}.scrim{z-index:40;background:var(--scrim);-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);opacity:0;transition:opacity .25s;position:fixed;inset:0}.scrim.open{opacity:1}.sheet{z-index:41;background:var(--leaf);border-radius:var(--r-xl) var(--r-xl) 0 0;max-height:min(90dvh,920px);padding-bottom:env(safe-area-inset-bottom,0px);opacity:0;flex-direction:column;transition:transform .3s cubic-bezier(.2,.85,.2,1),opacity .22s;display:flex;position:fixed;bottom:0;left:0;right:0;transform:translateY(28px);box-shadow:0 -2px 6px #4a341e0f,0 -18px 50px #4a341e2e}.sheet.open{opacity:1;transform:none}.sheet-in{flex-direction:column;flex:1;width:100%;max-width:640px;min-height:0;margin-inline:auto;display:flex}.grab{background:var(--paper-2);border-radius:999px;width:42px;height:5px;margin:10px auto 0}.sheet-h{justify-content:space-between;align-items:flex-start;gap:12px;padding-block:12px 14px;display:flex}.s-num{font-family:var(--f-display);color:var(--rubric);font-variant-numeric:lining-nums;margin:0;font-size:1.75rem;font-weight:600;line-height:1.05}.s-num .lbl{letter-spacing:.09em;margin-right:.18em;font-size:1.05em;font-variant-caps:all-small-caps}.s-ep{font-family:var(--f-book);color:var(--ink-2);margin:2px 0 0;font-size:1.05rem;font-style:italic}.tabs{background:var(--paper-2);scrollbar-width:none;border-radius:999px;gap:2px;padding:4px;display:flex;overflow-x:auto}.tabs::-webkit-scrollbar{display:none}.tabs button{font:600 13px/1 var(--f-ui);color:var(--ink-2);cursor:pointer;white-space:nowrap;background:0 0;border:0;border-radius:999px;flex:1 0 auto;padding:10px 13px;transition:background-color .2s,box-shadow .2s}.tabs button[aria-selected=true]{background:var(--leaf);color:var(--ink);box-shadow:var(--sh-1)}.sheet-body{overscroll-behavior:contain;flex:1;min-height:0;padding-block:18px 20px;overflow-y:auto}.sheet-f{box-shadow:0 -1px 0 var(--line);grid-template-columns:auto 1fr auto;align-items:center;gap:10px;padding-block:10px 14px;display:grid}.nav-btn{background:var(--paper);min-height:46px;font:600 13.5px var(--f-ui);font-variant-numeric:tabular-nums;color:var(--ink);cursor:pointer;border:0;border-radius:999px;align-items:center;gap:4px;padding:0 14px;display:inline-flex}.nav-btn:disabled{opacity:.35;cursor:default}.btn-und{box-shadow:none;background:var(--paper)}.btn-und[aria-pressed=true]{background:var(--sage-soft);color:var(--sage)}@media (width>=960px){.sheet{top:16px;bottom:16px;left:auto;right:max(16px, env(safe-area-inset-right,0px));border-radius:var(--r-xl);width:470px;max-height:none;box-shadow:var(--sh-3);transform:translate(24px)}.sheet.open{transform:none}.grab{display:none}}.lead{font-family:var(--f-book);margin:0 0 18px;font-size:1.18rem;line-height:1.62}.clave{border-radius:var(--r-md);background:linear-gradient(180deg, var(--gilt-soft), var(--leaf-2));box-shadow:inset 0 0 0 1px var(--gilt-line);margin-bottom:20px;padding:16px 18px 17px}.clave-k{margin:0 0 6px}.clave-k span{font-family:var(--f-book);letter-spacing:.14em;color:var(--rubric);font-size:1.02rem;font-variant-caps:all-small-caps;font-weight:600}.clave-k span:before{content:"☙ ";font-family:var(--f-orn);color:var(--gilt)}.clave p:last-child{font-family:var(--f-book);margin:0;font-size:1.08rem;line-height:1.55}.rel-k{font-family:var(--f-book);letter-spacing:.14em;color:var(--ink-2);margin:0 0 10px;font-size:1rem;font-variant-caps:all-small-caps}.rel-list{flex-wrap:wrap;gap:8px;display:flex}.rel-chip{text-align:left;border-radius:var(--r-sm);background:var(--leaf);box-shadow:var(--sh-1), inset 0 0 0 1px var(--line);cursor:pointer;font:600 13.5px/1.1 var(--f-ui);font-variant-numeric:tabular-nums;color:var(--rubric);border:0;flex-direction:column;align-items:flex-start;gap:3px;max-width:100%;padding:10px 14px;display:inline-flex}.rel-chip span{font:italic 400 14px/1.25 var(--f-book);color:var(--ink-2)}.cases{gap:12px;display:grid}.case{border-radius:var(--r-md);background:var(--paper);box-shadow:inset 0 0 0 1px var(--line);padding:16px 18px}.case-k{font-family:var(--f-book);letter-spacing:.12em;color:var(--rubric);margin:0 0 6px;font-size:1rem;font-variant-caps:all-small-caps;font-weight:600}.case p:last-child{font-family:var(--f-book);margin:0;font-size:1.12rem;line-height:1.58}.note{font-family:var(--f-book);color:var(--ink-2);margin:16px 0 0;font-size:.98rem;font-style:italic}.pop{z-index:50;background:var(--leaf);width:max-content;max-width:min(330px,100vw - 24px);color:var(--ink);border-radius:var(--r-md);box-shadow:var(--sh-3);padding:14px 16px 15px;position:fixed}.pop-h{justify-content:space-between;align-items:flex-start;gap:10px;margin-bottom:4px;display:flex}.pop-h strong{font-family:var(--f-display);color:var(--rubric);font-size:1.3rem;font-weight:600;line-height:1.15}.pop p{font-family:var(--f-book);margin:0;font-size:1.06rem;line-height:1.5}.pop-x{background:var(--paper);width:28px;height:28px;color:var(--ink-2);cursor:pointer;border:0;border-radius:999px;flex:none;place-items:center;display:grid}.entrada{place-content:center;min-height:100dvh;padding-block:28px 32px;display:grid}.ent-frame{text-align:center;background:var(--leaf);border-radius:var(--r-xl);width:min(100%,460px);box-shadow:var(--sh-3), inset 0 0 0 1px var(--gilt-line), inset 0 0 0 9px var(--leaf), inset 0 0 0 10px var(--gilt-line);margin-inline:auto;padding:46px 28px 30px}.ent-brand{font:600 12px/1 var(--f-ui);letter-spacing:.14em;text-transform:uppercase;color:var(--ink-2);margin:0}.ent-frame .orn{margin:24px 0 12px}.ent-title{max-width:9ch;font-family:var(--f-display);letter-spacing:-.01em;text-wrap:balance;margin:0 auto;font-size:clamp(2.7rem,12vw,3.5rem);font-weight:600;line-height:.98}.ent-sub{max-width:28ch;font-family:var(--f-book);color:var(--ink-2);text-wrap:balance;margin:14px auto 0;font-size:1.14rem;font-style:italic;line-height:1.45}.ent-act{justify-items:center;gap:16px;margin-top:32px;display:grid}.ent-act .btn{width:100%;max-width:300px;min-height:50px;font-size:15px}.ent-login{font:400 14px var(--f-ui);color:var(--ink-2);margin:0}.ent-login .link{font-size:14px}.ent-imprint{font-family:var(--f-book);letter-spacing:.14em;color:var(--ink-3);margin:36px 0 0;font-size:1rem;font-variant-caps:all-small-caps}.ent-proto{text-align:center;font:500 12px var(--f-ui);color:var(--ink-3);margin:16px 0 0}.home-top{justify-content:space-between;align-items:center;gap:12px;padding-top:18px;display:flex}.plan-chip{cursor:pointer;font:600 12.5px/1 var(--f-ui);color:var(--rubric);background:var(--leaf);box-shadow:var(--sh-1);white-space:nowrap;border:0;border-radius:999px;align-items:center;gap:6px;padding:9px 12px;display:inline-flex}.backlink{cursor:pointer;font:600 13.5px var(--f-ui);color:var(--rubric);background:0 0;border:0;align-items:center;gap:4px;padding:9px 2px;display:inline-flex}.home-head{text-align:center;padding:30px 0 6px}.home-title{font-family:var(--f-display);text-wrap:balance;margin:8px 0 16px;font-size:clamp(2.2rem,9vw,2.9rem);font-weight:600;line-height:1.04}.shelf-h{font-family:var(--f-book);letter-spacing:.16em;color:var(--ink-2);margin:30px 0 12px;font-size:1.06rem;font-variant-caps:all-small-caps;font-weight:600}.shelf,.tools{gap:12px;display:grid}.book-card{text-align:left;background:var(--leaf);border-radius:var(--r-lg);width:100%;box-shadow:var(--sh-2);cursor:pointer;color:var(--ink);font:inherit;border:0;align-items:center;gap:16px;padding:16px 16px 16px 18px;display:flex}.book-card.is-soon{cursor:default;box-shadow:var(--sh-1);background:var(--leaf-2)}.book-card.is-soon .bc-title{color:var(--ink-2)}.book-card.is-soon .spine{filter:saturate(.45);opacity:.75}.spine{width:46px;height:66px;font:600 12.5px/1 var(--f-display);letter-spacing:.08em;color:var(--gilt-soft);background:linear-gradient(90deg, #00000047, #ffffff1a 20%, #0000 45%), var(--leather-civil);border-radius:4px 9px 9px 4px;flex:none;place-items:center;display:grid;position:relative;box-shadow:inset 0 0 0 1px #00000024,0 2px 6px #4a341e33}.spine:before,.spine:after{content:"";background:var(--gilt-soft);opacity:.75;height:1px;position:absolute;left:8px;right:8px}.spine:before{top:12px}.spine:after{bottom:12px}.spine-const{background:linear-gradient(90deg, #00000047, #ffffff1a 20%, #0000 45%), var(--leather-const)}.spine-penal{background:linear-gradient(90deg, #00000047, #ffffff1a 20%, #0000 45%), var(--leather-penal)}.bc-body{flex:1;gap:3px;min-width:0;display:grid}.bc-title{font-family:var(--f-display);font-size:1.5rem;font-weight:600;line-height:1.08}.bc-sub{font-family:var(--f-book);color:var(--ink-2);font-size:1.02rem;font-style:italic;line-height:1.3}.bc-prog{font:500 12.5px var(--f-ui);color:var(--ink-2);font-variant-numeric:tabular-nums;align-items:center;gap:10px;margin-top:7px;display:flex}.bc-bar{background:var(--paper-2);border-radius:999px;flex:1;max-width:120px;height:5px;overflow:hidden}.bc-bar span{background:linear-gradient(90deg, #c4a35f, var(--gilt));border-radius:999px;width:0;height:100%;transition:width .4s;display:block}.chev{color:var(--ink-3);flex:none}.tool{text-align:left;background:var(--leaf);border-radius:var(--r-md);width:100%;box-shadow:var(--sh-1);cursor:pointer;color:var(--ink);font:inherit;border:0;align-items:center;gap:14px;padding:14px 16px;display:flex}.tool-ic{background:var(--gilt-soft);width:44px;height:44px;color:var(--rubric);box-shadow:inset 0 0 0 1px var(--gilt-line);border-radius:999px;flex:none;place-items:center;display:grid}.tool-body{flex:1;gap:2px;min-width:0;display:grid}.tool-t{font-family:var(--f-book);font-size:1.14rem;font-weight:600;line-height:1.2}.tool-d{font:400 13.5px/1.35 var(--f-ui);color:var(--ink-2);align-items:center;gap:5px;display:inline-flex}.cont{text-align:left;cursor:pointer;width:100%;color:var(--ink);font:inherit;background:linear-gradient(180deg, var(--gilt-soft), var(--leaf-2));border-radius:var(--r-lg);box-shadow:inset 0 0 0 1px var(--gilt-line), var(--sh-1);border:0;align-items:center;gap:14px;margin-top:20px;padding:16px 18px;display:flex}.cont-b{flex:1;gap:2px;min-width:0;display:grid}.cont-k{font-family:var(--f-book);letter-spacing:.14em;color:var(--rubric);font-size:1rem;font-variant-caps:all-small-caps}.cont-t{font-family:var(--f-display);font-size:1.35rem;font-weight:600;line-height:1.12}.cont-d{font-family:var(--f-book);color:var(--ink-2);font-size:1rem;font-style:italic}.idx-libro{border-bottom:1px solid var(--line);justify-content:space-between;align-items:flex-start;gap:14px;padding:15px 4px;display:flex}.idx-libro .ln{min-width:0;font-family:var(--f-book);font-size:1.1rem;font-weight:600;line-height:1.3}.idx-libro .ln small{color:var(--ink-2);margin-top:2px;font-size:1rem;font-style:italic;font-weight:400;display:block}.idx-libro .ls{text-align:right;font:500 12px/1.4 var(--f-ui);color:var(--ink-3);font-variant-numeric:tabular-nums;white-space:nowrap;flex:none;padding-top:3px}.idx-libro .ls em{color:var(--ink-3);font-style:normal;display:block}.idx-libro.is-soon .ln{color:var(--ink-2)}.idx-libro.is-open{border-bottom:0}.idx-titulo{background:var(--leaf);border-radius:var(--r-lg);box-shadow:var(--sh-2);margin:4px 0 18px;overflow:hidden}.idx-th{border-bottom:1px solid var(--line);padding:18px 20px 14px}.idx-th .k{font-family:var(--f-book);letter-spacing:.14em;color:var(--rubric);margin:0;font-size:1rem;font-variant-caps:all-small-caps}.idx-th h3{font-family:var(--f-display);text-wrap:balance;margin:4px 0 0;font-size:1.5rem;font-weight:600;line-height:1.12}.idx-row{text-align:left;border:0;border-bottom:1px solid var(--line);cursor:pointer;width:100%;color:var(--ink);font:inherit;background:0 0;align-items:center;gap:12px;padding:14px 18px 14px 20px;display:flex}.idx-row:last-child{border-bottom:0}.idx-row .rb{flex:1;gap:2px;min-width:0;display:grid}.idx-row .rt{font-family:var(--f-book);font-size:1.14rem;font-weight:500;line-height:1.25}.idx-row .rm{font:500 12.5px var(--f-ui);color:var(--ink-2);font-variant-numeric:tabular-nums}.mini-ok{font:600 12px/1 var(--f-ui);color:var(--sage);background:var(--sage-soft);font-variant-numeric:tabular-nums;border-radius:999px;flex:none;padding:6px 9px}.sample-tag{font:700 10.5px/1 var(--f-ui);letter-spacing:.06em;text-transform:uppercase;color:var(--rubric);background:var(--rubric-soft);border-radius:999px;flex:none;padding:5px 8px}.btn-study.is-locked{color:var(--ink-2);background:var(--paper-2)}.lock-tag{font:700 10px/1 var(--f-ui);letter-spacing:.06em;text-transform:uppercase;color:var(--rubric);background:var(--leaf);border-radius:999px;align-items:center;margin-left:4px;padding:4px 7px;display:inline-flex}.clave.is-locked{background:var(--paper);box-shadow:inset 0 0 0 1px var(--line)}.clave.is-locked p:not(.clave-k){font-family:var(--f-book);color:var(--ink-2);margin:0 0 12px;font-size:1.06rem;line-height:1.5}.lockcard{text-align:center;background:var(--leaf);border-radius:var(--r-lg);max-width:560px;box-shadow:var(--sh-2);margin-inline:auto;padding:32px 22px}.lockcard-ic{background:var(--gilt-soft);width:54px;height:54px;color:var(--rubric);box-shadow:inset 0 0 0 1px var(--gilt-line);border-radius:999px;place-items:center;display:inline-grid}.lockcard-t{font-family:var(--f-display);margin:14px 0 6px;font-size:1.65rem;font-weight:600;line-height:1.15}.lockcard-d{max-width:36ch;font-family:var(--f-book);color:var(--ink-2);margin:0 auto 18px;font-size:1.08rem;line-height:1.5}#pscrim{z-index:44}#plans{z-index:45}.plans-h{font-family:var(--f-display);margin:4px 0 0;font-size:1.9rem;font-weight:600;line-height:1.05}.plans-note{font-family:var(--f-book);color:var(--ink-2);margin:0 0 16px;font-size:1.04rem;font-style:italic;line-height:1.45}.plan{border-radius:var(--r-lg);background:var(--leaf);box-shadow:var(--sh-1), inset 0 0 0 1px var(--line);margin-bottom:12px;padding:18px 18px 16px}.plan.is-current{box-shadow:var(--sh-2), inset 0 0 0 1.5px var(--gilt)}.plan-top{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:4px 12px;display:flex}.plan-n{font-family:var(--f-display);margin:0;font-size:1.6rem;font-weight:600;line-height:1.1}.plan-tag{font-family:var(--f-book);color:var(--ink-2);font-size:1rem;font-style:italic}.plan ul{gap:7px;margin:12px 0 16px;padding:0;list-style:none;display:grid}.plan li{font:400 14px/1.4 var(--f-ui);align-items:flex-start;gap:8px;display:flex}.plan li svg{color:var(--sage);margin-top:2px}.plan .btn{width:100%}.plan .cur{text-align:center;font:600 13px var(--f-ui);color:var(--gilt);padding:12px;display:block}@media (prefers-reduced-motion:reduce){.fc-inner,.sheet,.scrim,.tp-prog .bar,.rv-bar span,.press{transition:none}.press:active{transform:none}.art.flash{animation:none}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}