:root{--bg:#F6F1FF;--sf:#fffdfd;--ink:#24124A;--ac:#6B3CF5;--ac2:#00B3A4;--rule:#D9CCF7;--mut:#5d4c86}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:400 1.05rem/1.7 Lora,Georgia,serif;overflow-x:hidden;padding-right:120px}
h1,h2,h3,.logo,.tab,button,label,.date,.kind,.day{font-family:Lexend,sans-serif}
a{color:var(--ac)}:focus-visible{outline:3px solid var(--ac2);outline-offset:3px;border-radius:4px}
.skip{position:absolute;left:-999px}.skip:focus{left:1rem;top:1rem;background:var(--ink);color:var(--bg);padding:.5rem 1rem;z-index:20}
.top{padding:1.4rem clamp(1rem,4vw,3rem)}.logo{display:inline-flex;align-items:center;gap:.6rem;font-weight:700;text-decoration:none;color:var(--ink);letter-spacing:.04em;flex-wrap:wrap}
.logo small{font-weight:300;color:var(--mut);letter-spacing:0}.dot{width:14px;height:14px;border-radius:50%;background:var(--ac);box-shadow:8px 0 0 var(--ac2)}
.dividers{position:fixed;right:0;top:12vh;z-index:10}.dividers ol{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
.tab{display:block;width:118px;padding:.85rem .9rem;border-radius:12px 0 0 12px;text-decoration:none;color:var(--ink);font-weight:500;font-size:.9rem;transform:translateX(14px);transition:transform .2s}
.tab:hover,.tab[aria-current]{transform:translateX(0)}.tab[aria-current]{font-weight:700;box-shadow:-4px 0 0 var(--ink) inset}
.t1{background:#cdb9ff}.t2{background:#a8ece4}.t3{background:#ffd9ec}.t4{background:#ffe9a8}.t5{background:#dde3f0}
.book{padding:0 clamp(1rem,4vw,3rem) 3rem;animation:turn .5s ease both;transform-origin:left center}
@keyframes turn{from{opacity:0;transform:perspective(1200px) rotateY(-8deg)}to{opacity:1;transform:none}}
.spread{display:grid;grid-template-columns:1fr 1fr;background:var(--sf);border-radius:6px;box-shadow:0 20px 50px -25px #6B3CF566,0 0 0 1px var(--rule);position:relative}
.spread:after{content:"";position:absolute;left:50%;top:0;bottom:0;width:30px;transform:translateX(-50%);background:linear-gradient(90deg,transparent,#6B3CF51a,transparent);pointer-events:none}
.leaf{padding:2.2rem clamp(1rem,3vw,2.6rem);background-image:repeating-linear-gradient(transparent 0 33px,var(--rule) 33px 34px);background-position:0 8.4rem}
.right{border-left:1px dashed var(--rule)}
.date{font-size:.75rem;text-transform:uppercase;letter-spacing:.2em;color:var(--ac2);font-weight:700;margin:0}
h1{font-weight:700;font-size:clamp(2rem,4.5vw,3.3rem);line-height:1.1;margin:.3rem 0 .8rem}h2{font-weight:500}
.hint{color:var(--mut);font-style:italic;max-width:60ch}
.tasks{list-style:none;padding:0;margin:1.2rem 0}
.task{display:grid;grid-template-columns:26px 4.4rem 1fr;gap:.8rem;align-items:start;padding:.55rem 0;cursor:pointer}
.task input{position:absolute;opacity:0;width:1px;height:1px}
.box{width:24px;height:24px;border:2px solid var(--ac);border-radius:6px;display:grid;place-items:center;background:#fff}
.box svg{width:18px;fill:none;stroke:var(--ac2);stroke-width:3;stroke-linecap:round;stroke-dasharray:24;stroke-dashoffset:24;transition:stroke-dashoffset .35s}
.task input:checked+.box svg{stroke-dashoffset:0}.task input:focus-visible+.box{outline:3px solid var(--ac2);outline-offset:2px}
.task input:checked~.tt b{text-decoration:line-through;text-decoration-color:var(--ac2);text-decoration-thickness:2px}
.day{font-size:.8rem;color:var(--ac);font-weight:700;padding-top:.15rem}.tt span{display:block;color:var(--mut);font-size:.95rem}
.picked{font-family:Lexend;font-size:.9rem;background:#eaf8f6;padding:.5rem .8rem;border-radius:8px}
.note{margin:0 0 1.05rem;line-height:34px}.note.hl{background:linear-gradient(transparent 55%,#00B3A433 55%)}
.sticky-note{background:#ffe9a8;padding:1rem 1.2rem;transform:rotate(1.5deg);margin-top:2rem;box-shadow:0 8px 16px -10px #24124a55;max-width:340px}
.pagehead{padding:1rem 0 1.5rem}
.seg{display:flex;flex-wrap:wrap;gap:.5rem}.seg button,.openall,.letter button{font:500 .9rem Lexend;border:2px solid var(--ac);background:#fff;color:var(--ink);padding:.55rem 1rem;border-radius:999px;cursor:pointer}
.seg button[aria-pressed=true],.openall[aria-pressed=true],.letter button{background:var(--ac);color:#fff}
.cnt{font-family:Lexend;font-size:.85rem;color:var(--mut)}
.board{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:minmax(170px,auto);gap:1.2rem;grid-auto-flow:dense;padding:1rem;background:#e9defd;border-radius:10px}
.icard{background:#fff;padding:1.6rem 1.2rem 1.2rem;position:relative;background-image:linear-gradient(#F0A3C4 0 0);background-size:100% 2px;background-position:0 3.2rem;background-repeat:no-repeat;box-shadow:0 6px 14px -8px #24124a55;transition:transform .2s}
.icard:nth-child(odd){transform:rotate(-1deg)}.icard:nth-child(3n){transform:rotate(1.2deg)}.icard:hover{transform:rotate(0) translateY(-3px)}
.icard.wide{grid-column:span 2}.icard.tall{grid-row:span 2}.icard[hidden]{display:none}
.icard h2{font-size:1.25rem;margin:.6rem 0 .4rem}.kind{font-size:.7rem;text-transform:uppercase;letter-spacing:.18em;margin:0;color:var(--ac)}
.k-improve .kind{color:#00897e}.k-support .kind{color:#b0447a}
.pin{position:absolute;top:-8px;left:50%;width:16px;height:16px;border-radius:50%;background:var(--ac);box-shadow:inset -3px -3px 0 #0003}.k-improve .pin{background:var(--ac2)}.k-support .pin{background:#e46ea8}
.ruled{background:var(--sf);border-radius:6px;box-shadow:0 0 0 1px var(--rule);padding:1rem clamp(1rem,3vw,2.5rem);background-image:linear-gradient(90deg,transparent 3.2rem,#f3a6c7 3.2rem,#f3a6c7 3.3rem,transparent 3.3rem)}
.qa{display:grid;grid-template-columns:1fr 220px;gap:1.5rem;border-bottom:1px solid var(--rule);padding:1rem 0 1rem 3rem}
.qa summary{cursor:pointer;font-family:Lexend;font-weight:500;font-size:1.15rem;list-style:none}.qa summary::-webkit-details-marker{display:none}
.qa summary:before{content:"+";display:inline-block;width:1.4rem;color:var(--ac);font-weight:700}.qa details[open] summary:before{content:"–"}
.margin{font-style:italic;color:#b0447a;font-size:.92rem;transform:rotate(-1.5deg)}.openall{margin-top:.5rem}
.envelope{display:grid;grid-template-columns:1fr 1.15fr;gap:0;align-items:start;margin-top:1rem}
.env-front{background:#fff;padding:2rem;border-radius:8px 0 0 8px;position:relative;background-image:repeating-linear-gradient(135deg,var(--ac) 0 12px,#fff 12px 24px,var(--ac2) 24px 36px,#fff 36px 48px);background-size:100% 10px;background-repeat:no-repeat;box-shadow:0 0 0 1px var(--rule)}
.stamp{position:absolute;right:1.4rem;top:1.6rem;width:76px;height:88px;border:3px dotted var(--ac);display:grid;place-items:center;text-align:center;font:700 .8rem/1.2 Lexend;color:var(--ac);background:#efe7ff;transform:rotate(4deg)}
.from{font-family:Lexend;color:var(--mut);margin:2.5rem 0 .3rem}address{font-style:normal;font-size:1.15rem;max-width:30ch}
.meta{display:grid;grid-template-columns:6rem 1fr;gap:.3rem 1rem;margin-top:1.5rem;font-size:.95rem}.meta dt{font-family:Lexend;color:var(--mut)}.meta dd{margin:0;word-break:break-word}
.letter{background:var(--sf);padding:2rem;border-radius:0 8px 8px 0;box-shadow:0 0 0 1px var(--rule),12px 16px 30px -18px #6B3CF588;background-image:repeating-linear-gradient(transparent 0 33px,var(--rule) 33px 34px);display:grid;gap:.3rem;transform:translateY(-14px) rotate(.6deg)}
.salut{font-style:italic;font-size:1.15rem}label{font-size:.85rem;font-weight:500;margin-top:.5rem}
input,textarea{font:inherit;width:100%;padding:.6rem .7rem;border:1.5px solid var(--rule);border-radius:8px;background:#fffdfdcc;color:var(--ink)}
input:focus,textarea:focus{border-color:var(--ac)}.row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.letter button{justify-self:start;margin-top:1rem;padding:.75rem 1.4rem}.status{font-family:Lexend;font-weight:500;color:#00796f;min-height:1.4em}.fallback{font-size:.9rem;word-break:break-word}
.picked-note{font-size:.88rem;color:var(--ac2);margin:0}
.prose{max-width:none}.prose>*{max-width:68ch;margin-left:2.6rem}.prose h2{color:var(--ac);font-size:1.2rem;margin-top:1.8rem}
.foot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:1rem;padding:1.5rem clamp(1rem,4vw,3rem);font-size:.85rem;color:var(--mut);border-top:1px solid var(--rule)}
@media (max-width:860px){body{padding-right:0}.dividers{position:sticky;top:0;right:auto;background:var(--bg);border-bottom:1px solid var(--rule)}
.dividers ol{flex-direction:row;overflow-x:auto;padding:.5rem 1rem 0;gap:4px}.tab{width:auto;white-space:nowrap;border-radius:10px 10px 0 0;transform:translateY(6px);padding:.6rem .9rem}.tab:hover,.tab[aria-current]{transform:none}.tab[aria-current]{box-shadow:0 -4px 0 var(--ink) inset}
.spread,.envelope,.row{grid-template-columns:1fr}.right{border-left:0;border-top:1px dashed var(--rule)}.spread:after{display:none}
.board{grid-template-columns:1fr 1fr}.qa{grid-template-columns:1fr;padding-left:2.6rem;gap:.4rem}.letter{transform:none;border-radius:0 0 8px 8px}.env-front{border-radius:8px 8px 0 0}}
@media (max-width:520px){.board{grid-template-columns:1fr}.icard.wide{grid-column:auto}.icard.tall{grid-row:auto}.task{grid-template-columns:26px 1fr}.day{grid-column:2}.tt{grid-column:2}.stamp{display:none}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}