:root{--ink: #102426;--ink-soft: #3a5456;--paper: #f3f0e8;--teal: #0f3d3e;--teal-bright: #1a6b6d;--ok: #1f7a4c;--ok-bg: #d8f0e3;--bad: #b42318;--bad-bg: #fde8e6;--warn: #9a6700;--warn-bg: #fff3d6;--line: rgba(16, 36, 38, .12);--nav-h: 56px;--safe-t: env(safe-area-inset-top, 0px);--safe-b: env(safe-area-inset-bottom, 0px);--safe-l: env(safe-area-inset-left, 0px);--safe-r: env(safe-area-inset-right, 0px);--font: "DM Sans", system-ui, sans-serif;--display: "Fraunces", Georgia, serif;--tap: 52px;--shell: 480px;--fs-xs: .75rem;--fs-sm: .875rem;--fs-md: 1rem;--fs-lg: 1.0625rem;--fs-xl: 1.25rem;--fs-display: 1.35rem;--fs-stat: 1.75rem;--fit: 1;--fit-max: 1;color:var(--ink);background:var(--paper);font-family:var(--font);font-size:16px;line-height:1.5;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;text-size-adjust:100%}*,*:before,*:after{box-sizing:border-box}html,body,#root{height:100%;width:100%;max-width:100%;overflow:hidden}body{margin:0;min-height:100dvh;min-height:100svh;overscroll-behavior:none;background:radial-gradient(900px 420px at 0% -5%,rgba(26,107,109,.16),transparent 55%),radial-gradient(700px 360px at 100% 0%,rgba(196,92,38,.1),transparent 50%),var(--paper);touch-action:manipulation}button,input,textarea,select{font:inherit;font-size:max(16px,1rem)}button{cursor:pointer;touch-action:manipulation;-webkit-user-select:none;user-select:none}.app{height:100dvh;height:100svh;width:100%;max-width:var(--shell);margin:0 auto;display:grid;grid-template-rows:auto minmax(0,1fr) 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var(--fit));text-transform:uppercase;letter-spacing:.04em;opacity:.85}.review-body{margin:0;color:var(--ink);font-size:calc(var(--fs-md) * var(--fit));line-height:1.35;text-wrap:pretty}.review-why{margin:calc(6px * var(--fit)) 0 0;color:var(--ink-soft);font-size:calc(var(--fs-sm) * var(--fit));line-height:1.4;text-wrap:pretty}.review-ejemplo{margin-top:calc(8px * var(--fit));padding:calc(12px * var(--fit));border-radius:14px;background:#1a6b6d14;border-left:3px solid var(--teal-bright);animation:rise .3s ease both}.review-ejemplo-label{display:block;margin-bottom:calc(4px * var(--fit));color:var(--teal);font-size:calc(var(--fs-xs) * var(--fit));font-weight:700;text-transform:uppercase;letter-spacing:.04em}.review-ejemplo p{margin:0;color:var(--ink);font-size:calc(var(--fs-sm) * var(--fit));line-height:1.45;text-wrap:pretty}.review-fuente{margin:calc(8px * var(--fit)) 0 0;padding:8px 10px;border-radius:10px;background:#fff9;border:1px dashed var(--line);color:var(--ink-soft);font-size:calc(var(--fs-sm) * var(--fit));line-height:1.35}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:8px}.stat{padding:14px 12px;border-radius:14px;background:#fff9;border:1px solid var(--line);min-height:76px}.stat-value{font-family:var(--display);font-size:var(--fs-stat);color:var(--teal);line-height:1}.stat-label{margin-top:6px;font-size:var(--fs-sm);color:var(--ink-soft)}.section-title{font-family:var(--display);font-size:var(--fs-xl);margin:4px 0 0}.form{display:flex;flex-direction:column;gap:12px;padding-bottom:8px}.field{display:flex;flex-direction:column;gap:6px}.field label{font-size:var(--fs-sm);font-weight:650;color:var(--ink-soft)}.field input,.field textarea,.field select{width:100%;border:1.5px solid var(--line);border-radius:12px;padding:14px 12px;min-height:var(--tap);background:#ffffffc7;color:var(--ink);appearance:none}.field textarea{min-height:88px;resize:vertical}.muted{color:var(--ink-soft);font-size:var(--fs-sm);margin:0}.empty{padding:40px 12px;text-align:center;color:var(--ink-soft)}.stack{display:flex;flex-direction:column;gap:10px}.list-grid{display:grid;grid-template-columns:1fr;gap:0;align-items:start}.list-item{display:flex;flex-direction:column;gap:8px;padding:12px 0;border-bottom:1px solid var(--line)}.list-item strong{text-wrap:pretty;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;line-clamp:2;overflow:hidden}.row-actions{display:grid;grid-template-columns:1fr;gap:8px}@media(min-width:380px){.row-actions{grid-template-columns:repeat(3,1fr)}}.toast{position:fixed;left:50%;bottom:calc(var(--nav-h) + var(--safe-b) + 18px);transform:translate(-50%);background:var(--ink);color:#f7f4ec;padding:12px 16px;border-radius:999px;font-size:var(--fs-sm);z-index:30;animation:rise .2s ease both;width:min(420px,calc(100% - 24px));text-align:center;pointer-events:none}.lock-screen{height:100dvh;height:100svh;width:100%;max-width:480px;margin:0 auto;display:flex;align-items:center;padding:max(16px,var(--safe-t)) max(16px,var(--safe-r)) max(16px,var(--safe-b)) max(16px,var(--safe-l))}.lock-card{width:100%;display:flex;flex-direction:column;gap:14px}.lock-error{margin:0;color:var(--bad);font-size:var(--fs-sm);font-weight:650}@media(max-width:480px){:root{font-size:15.5px;--fs-xs: .72rem;--fs-sm: .84rem;--fs-md: .95rem;--fs-lg: 1.02rem;--fs-xl: 1.18rem;--fs-display: 1.28rem;--fs-stat: 1.55rem;--tap: 52px}.stats-grid{grid-template-columns:1fr 1fr}.stat{min-height:66px;padding:11px 12px}.stack{gap:9px}.list-item{padding:10px 0}.field textarea{min-height:72px}}@media(max-height:620px){:root{--nav-h: 44px}.topbar{padding:4px 2px 2px}.brand-sub{display:none}.nav button{flex-direction:row;gap:6px;padding:4px 2px}.nav button .nav-icon{font-size:1rem}.study-actions{padding:6px 2px 4px}.chapter-filter 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48px}body{display:flex;justify-content:center;background:radial-gradient(900px 420px at 20% -10%,rgba(26,107,109,.1),transparent 55%),radial-gradient(700px 360px at 90% 0%,rgba(196,92,38,.06),transparent 50%),#ebe7dc}.app,.lock-screen{border-inline:1px solid var(--line);background:#f3f0e8f5;box-shadow:0 18px 50px #10242614}.app{border-radius:0;padding-left:max(20px,var(--safe-l));padding-right:max(20px,var(--safe-r))}.brand{font-family:var(--font);font-size:1.125rem;font-weight:700;letter-spacing:-.01em}.enunciado{font-family:var(--font);font-weight:650;letter-spacing:-.02em;line-height:1.4}.option-text,.review-body,.review-why{line-height:1.5}.section-title,.stat-value{font-family:var(--font)}.nav{margin:0 -20px;border-radius:0}.lock-screen{border-radius:16px;min-height:min(720px,100dvh);margin:24px auto;height:auto}}@media(min-width:900px){:root{--shell: 940px;--fs-display: 1.6rem;--fit-max: 1.3}.study-actions .primary{width:auto;min-width:260px;margin-left:auto;display:block}.review-list{grid-template-columns:1fr 1fr}.list-grid{grid-template-columns:1fr 1fr;column-gap:24px}.main>.stack{gap:8px}.section-title{margin:0}.list-item{padding:9px 0}.list-item:not(:has(.row-actions)){flex-direction:row;align-items:baseline;justify-content:space-between;gap:20px}.list-item:not(:has(.row-actions)) .muted{white-space:nowrap}.main .form{display:grid;grid-template-columns:repeat(6,1fr);column-gap:16px;row-gap:10px;align-items:start;padding-bottom:0}.main .form>.field{grid-column:span 2}.main .form>.stack{grid-column:span 3}.main .form>.field:first-child,.main .form>.field:has(#ejemplo),.main .form>button{grid-column:1 / -1}.main .form>.stack{display:grid;grid-template-columns:1fr 1fr;gap:12px}.field textarea{min-height:58px}}@media(min-width:1280px){:root{--shell: 1000px;--fit-max: 1.4}}@media(min-width:900px)and (max-height:780px){:root{--fit-max: 1.15}}@media(min-width:900px)and (max-height:640px){:root{--fit-max: 1}}