:root{--paper:#f2edde;--sheet:#fbf8ee;--ink:#1b2a4e;--muted:#58564c;--stamp:#b3261e;--rule:#d8d1ba;--hi:#ffe66d;--note:#fff1a8;--green:#2d6a4f}
*{box-sizing:border-box;margin:0}
html{scroll-behavior:smooth}
body{background:var(--paper);color:var(--ink);font:18px/1.6 Georgia,"Times New Roman",serif;
 background-image:linear-gradient(var(--rule) 1px,transparent 1px);background-size:100% 36px;background-position:0 12px}
a{color:inherit}
:focus-visible{outline:3px solid var(--stamp);outline-offset:3px}
.mono{font-family:"Courier New",Courier,monospace}
.wrap{max-width:1100px;margin:0 auto;padding:0 32px;position:relative}
/* margen de cuaderno */
.wrap::before{content:"";position:absolute;left:12px;top:0;bottom:0;width:2px;background:rgba(179,38,30,.35)}
header{display:flex;justify-content:space-between;align-items:baseline;padding:28px 0 8px}
.logo{font:700 26px Georgia,serif;text-decoration:none;letter-spacing:-.02em}
.logo small{font:400 13px "Courier New",monospace;color:var(--muted);margin-left:10px;letter-spacing:0}
nav{display:flex;gap:26px;font:15px "Courier New",monospace}
nav a{text-decoration:none;border-bottom:2px solid transparent;padding-bottom:2px}
nav a:hover{border-color:var(--stamp)}
.hero{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;padding:64px 0 96px;align-items:start}
.kicker{font:14px "Courier New",monospace;color:var(--stamp);text-transform:uppercase;letter-spacing:.12em;margin-bottom:18px}
h1{font-size:62px;line-height:1;letter-spacing:-.035em;font-weight:700;margin-bottom:26px}
h1 .u{position:relative;white-space:nowrap}
h1 .u svg{position:absolute;left:-2%;bottom:-14px;width:104%;height:18px;overflow:visible}
h1 .u path{stroke:var(--stamp);stroke-width:5;fill:none;stroke-linecap:round;stroke-dasharray:420;stroke-dashoffset:420;animation:draw 1.1s .5s forwards ease-out}
@keyframes draw{to{stroke-dashoffset:0}}
.lead{font-size:21px;max-width:520px;margin-bottom:30px}
.btn{display:inline-block;font:700 16px "Courier New",monospace;text-transform:uppercase;letter-spacing:.06em;background:var(--ink);color:var(--sheet);padding:15px 24px;border:2px solid var(--ink);text-decoration:none;cursor:pointer;box-shadow:5px 5px 0 var(--stamp);transition:transform .15s,box-shadow .15s}
.btn:hover{transform:translate(-2px,-2px);box-shadow:7px 7px 0 var(--stamp)}
.btn:active{transform:translate(4px,4px);box-shadow:1px 1px 0 var(--stamp)}
.btn.line{background:transparent;color:var(--ink);box-shadow:none;margin-left:10px}
.btn.line:hover{background:var(--hi);box-shadow:none}
/* hoja de fichajes */
.sheet{background:var(--sheet);border:1px solid var(--rule);padding:30px 28px 24px;box-shadow:0 2px 0 var(--rule),0 18px 30px -18px rgba(27,42,78,.4);transform:rotate(1.2deg);position:relative}
.sheet::before{content:"";position:absolute;top:-14px;left:50%;width:110px;height:28px;margin-left:-55px;background:rgba(255,230,109,.75);transform:rotate(-3deg)}
.sheet h2{font:700 13px "Courier New",monospace;text-transform:uppercase;letter-spacing:.12em;color:var(--muted);margin-bottom:14px}
table{width:100%;border-collapse:collapse;font:15px "Courier New",monospace}
th{text-align:left;font-weight:700;border-bottom:2px solid var(--ink);padding:6px 4px}
td{padding:9px 4px;border-bottom:1px dashed var(--rule)}
td:last-child,th:last-child{text-align:right}
tr.today td{background:rgba(255,230,109,.35)}
.sheet .btn{width:100%;margin-top:20px;text-align:center}
.stamp{position:absolute;right:20px;top:92px;border:4px double var(--stamp);color:var(--stamp);font:700 22px "Courier New",monospace;text-transform:uppercase;letter-spacing:.08em;padding:6px 14px;transform:rotate(-9deg);opacity:0;pointer-events:none;background:rgba(251,248,238,.6)}
.stamp.hit{animation:thud .45s cubic-bezier(.2,1.4,.4,1) forwards}
@keyframes thud{0%{opacity:0;transform:rotate(-9deg) scale(2.4)}60%{opacity:1}100%{opacity:.92;transform:rotate(-9deg) scale(1)}}
.note-s{font:13px "Courier New",monospace;color:var(--muted);margin-top:12px}
section{padding:80px 0}
h2.t{font-size:48px;line-height:1.05;letter-spacing:-.03em;margin-bottom:12px}
.sub{color:var(--muted);max-width:600px;margin-bottom:40px;font-size:19px}
mark{background:linear-gradient(transparent 55%,var(--hi) 55%);color:inherit}
/* libro de registro */
.ledger{border-top:3px solid var(--ink)}
details{border-bottom:1px solid var(--ink);background:transparent}
summary{list-style:none;display:grid;grid-template-columns:70px 1fr 200px 150px;gap:16px;align-items:center;padding:22px 8px;cursor:pointer;transition:background .2s}
summary::-webkit-details-marker{display:none}
summary:hover{background:rgba(255,230,109,.4)}
summary .n{font:15px "Courier New",monospace;color:var(--muted)}
summary .name{font-size:28px;font-weight:700;letter-spacing:-.02em}
summary .who{font:14px "Courier New",monospace;color:var(--muted)}
.st{font:700 13px "Courier New",monospace;text-transform:uppercase;letter-spacing:.08em;border:2px solid;padding:4px 10px;justify-self:end;transform:rotate(-2deg);display:inline-block}
.st.on{color:var(--green)}.st.wip{color:#9a5b00}.st.idea{color:var(--muted)}
details[open] summary{background:rgba(255,230,109,.3)}
.body{display:grid;grid-template-columns:70px 1fr 1fr;gap:16px;padding:6px 8px 28px}
.body p{font-size:17px;color:var(--muted)}
.body ul{list-style:none;padding:0;font-size:17px}
.body li{padding-left:24px;position:relative;margin-bottom:6px}
.body li::before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:700}
/* por qué pequeños */
.why{display:grid;grid-template-columns:repeat(3,1fr);gap:36px}
.why div{border-top:3px solid var(--ink);padding-top:14px}
.why b{display:block;font-size:26px;letter-spacing:-.02em;margin-bottom:6px}
.why p{color:var(--muted);font-size:17px}
/* lista de tareas */
.todo{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:start}
.checks{display:grid;gap:4px}
.checks label{display:flex;gap:16px;align-items:center;padding:14px 12px;font-size:21px;cursor:pointer;border-bottom:1px dashed var(--rule);transition:background .2s}
.checks label:hover{background:rgba(255,230,109,.4)}
.checks input{appearance:none;width:28px;height:28px;border:2px solid var(--ink);background:var(--sheet);flex:none;display:grid;place-items:center;cursor:pointer}
.checks input::after{content:"✗";font:700 24px/1 "Courier New",monospace;color:var(--stamp);transform:scale(0);transition:transform .2s cubic-bezier(.3,1.6,.5,1)}
.checks input:checked::after{transform:scale(1)}
.checks input:checked+span{text-decoration:line-through;text-decoration-color:var(--stamp);text-decoration-thickness:2px}
.post{background:var(--note);padding:30px 28px;transform:rotate(-1.5deg);box-shadow:0 16px 24px -16px rgba(0,0,0,.35);min-height:220px}
.post h3{font:700 13px "Courier New",monospace;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);margin-bottom:12px}
.post ul{list-style:none;padding:0;display:grid;gap:12px;font-size:19px}
.post li{animation:pop .3s}
@keyframes pop{from{opacity:0;transform:translateX(-10px)}}
.post .empty{color:var(--muted);font-style:italic}
/* contacto */
.contact{background:var(--ink);color:var(--sheet);padding:64px 60px;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;position:relative;border-radius:46px 14px 52px 18px / 18px 46px 16px 52px;transform:rotate(-.7deg);box-shadow:0 22px 30px -20px rgba(27,42,78,.6)}
.contact::after{content:"";position:absolute;inset:12px;border:2px dashed rgba(251,248,238,.3);border-radius:38px 10px 44px 12px / 12px 38px 10px 44px;pointer-events:none}
.contact::before{content:"";position:absolute;top:-16px;right:70px;width:96px;height:30px;background:rgba(255,230,109,.85);transform:rotate(4deg)}
.contact h2.t{color:var(--sheet)}
.contact p{color:#d7d9e4}
form{display:grid;gap:16px;position:relative;z-index:1}
label.l{font:14px "Courier New",monospace;text-transform:uppercase;letter-spacing:.08em;color:#d7d9e4}
input[type=text],textarea{width:100%;padding:12px 4px;background:transparent;border:0;border-bottom:2px solid var(--sheet);color:var(--sheet);font:19px Georgia,serif}
textarea{min-height:100px;resize:vertical}
.contact :focus-visible{outline:3px solid var(--hi);outline-offset:4px}
.contact .btn{background:var(--hi);color:var(--ink);border-color:var(--hi);box-shadow:5px 5px 0 var(--stamp);justify-self:start}
.ok{display:none;font:15px "Courier New",monospace;color:var(--hi)}
footer{padding:48px 0 40px;font:14px "Courier New",monospace;color:var(--muted);display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}
@media(max-width:900px){.hero,.todo,.contact,.why{grid-template-columns:1fr}h1{font-size:46px}summary{grid-template-columns:1fr auto}summary .n,summary .who{display:none}.body{grid-template-columns:1fr}.contact{padding:32px}nav a:not(.cta){display:none}.wrap::before{display:none}}
@media(max-width:900px){.contact{transform:none}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}html{scroll-behavior:auto}h1 .u path{stroke-dashoffset:0}.stamp.hit{opacity:.92;transform:rotate(-9deg)}}

.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:var(--sheet);padding:10px 16px;font:15px "Courier New",monospace;z-index:10}
.skip:focus{left:8px}
.body a{color:var(--ink);font-weight:700;text-decoration-color:var(--stamp);text-decoration-thickness:2px;text-underline-offset:3px}
.body a:hover{background:var(--hi)}
#contacto{padding-top:20px}