/* LETTERS FROM THE ROAD (Oct 1, 2026): the look of /letters and /letters/<slug>, rendered by _worker.js.
   Same colours, fonts, nav and footer as the rest of the site, lighter page. Also used by 404.html. */
:root{--amber:#E8A33D;--coral:#F2785C;--teal:#4FB0C6;--indigo:#1E2A4A;--night:#131b33;--chrome:#D9C7A3;--offwhite:#F5EFE1;--charcoal:#2A2A2E;--sans:'Jost',system-ui,sans-serif;--serif:'Lora',Georgia,serif;--ease:cubic-bezier(.22,1,.36,1)}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body.letters-body{font-family:var(--serif);color:var(--charcoal);background:var(--offwhite);line-height:1.75;font-size:17px;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:#8a5a0e}
.wrap{max-width:1100px;margin:0 auto;padding:0 28px}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
h1,h2,h3,.eyebrow,.btn,nav,.byline,.crumbs,time{font-family:var(--sans)}
.eyebrow{display:inline-block;font-size:12.5px;letter-spacing:.34em;font-weight:600;text-transform:uppercase;margin-bottom:18px;color:var(--teal)}
.eyebrow::after{content:"";display:block;width:36px;height:2px;background:var(--amber);margin-top:10px}

/* header + nav (same as the site) */
header{position:fixed;inset:0 0 auto 0;z-index:50;padding:13px 0;transition:padding .35s;background:linear-gradient(180deg,rgba(19,27,51,.98),rgba(19,27,51,.92));backdrop-filter:blur(6px)}
.navbar{display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;text-decoration:none;flex:none}
.brand img{height:40px;width:auto}
.links{display:flex;align-items:center;gap:24px}
.navlink{color:rgba(245,239,225,.88);text-decoration:none;font-size:13px;font-weight:500;letter-spacing:.11em;transition:color .2s}
.navlink:hover{color:#fff}
.navbtn{display:inline-flex;align-items:center;gap:7px;padding:9px 17px;border-radius:999px;font-weight:600;font-size:12px;letter-spacing:.11em;text-transform:uppercase;text-decoration:none;position:relative;background:linear-gradient(180deg,rgba(255,255,255,.09),rgba(255,255,255,0)),rgba(18,25,44,.72);border:1.5px solid;transition:box-shadow .3s var(--ease),transform .2s var(--ease)}
.navbtn svg{width:15px;height:15px}
.navbtn.summit{color:#F8CB7C;border-color:rgba(232,163,61,.7);box-shadow:0 0 15px rgba(232,163,61,.45),inset 0 0 11px rgba(232,163,61,.13)}
.navbtn.unblk{color:#A6C6FF;border-color:rgba(96,138,246,.72);box-shadow:0 0 15px rgba(96,138,246,.5),inset 0 0 11px rgba(96,138,246,.15)}
.navbtn:hover{transform:translateY(-1px)}
.burger{order:2;display:none;flex-direction:column;gap:5px;background:none;border:0;padding:8px;cursor:pointer}
.burger span{display:block;width:24px;height:2.5px;border-radius:2px;background:var(--offwhite);transition:transform .3s var(--ease),opacity .3s}
body.menu-open .burger span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
body.menu-open .burger span:nth-child(2){opacity:0}
body.menu-open .burger span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}
.mobile-menu{position:fixed;inset:0;background:rgba(30,42,74,.97);backdrop-filter:blur(8px);z-index:40;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:8px;opacity:0;pointer-events:none;transition:opacity .35s var(--ease)}
.mobile-menu.open{opacity:1;pointer-events:auto}
.mobile-menu a{color:var(--offwhite);text-decoration:none;font-family:var(--sans);font-size:24px;font-weight:500;letter-spacing:.06em;padding:14px 28px}
.mm-summit{color:#F8CB7C;text-shadow:0 0 20px rgba(232,163,61,.6)}
.mm-unblk{color:#A6C6FF;text-shadow:0 0 20px rgba(96,138,246,.6)}
@media(max-width:760px){.links{display:none}.burger{display:flex}}

/* the letters index */
.letters-hero,.letter-head{background:linear-gradient(180deg,var(--indigo) 0%,var(--night) 100%);color:var(--offwhite);padding:138px 0 56px;position:relative;overflow:hidden}
.letters-hero::after,.letter-head::after{content:"";position:absolute;inset:auto 0 0 0;height:1px;background:linear-gradient(90deg,transparent,rgba(232,163,61,.7),transparent)}
.letters-hero h1,.letter-head h1{font-size:clamp(34px,5.2vw,56px);font-weight:500;line-height:1.1;letter-spacing:-.01em;max-width:860px}
.letters-hero .lede{max-width:620px;font-size:18px;color:rgba(245,239,225,.9);margin-top:18px}
.letters-list{padding:56px 0 20px}
.letter-grid{list-style:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:26px}
.letter-card a{display:block;height:100%;background:#fff;border-radius:18px;overflow:hidden;text-decoration:none;color:inherit;box-shadow:0 6px 24px rgba(30,42,74,.08);border:1px solid rgba(30,42,74,.06);transition:transform .25s var(--ease),box-shadow .25s var(--ease)}
.letter-card a:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(30,42,74,.14)}
.letter-card img{aspect-ratio:16/9;object-fit:cover;width:100%}
.lc-body{padding:22px 24px 24px}
.lc-body time{font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;color:#7a7a80}
.lc-body h2{font-size:22px;font-weight:500;line-height:1.25;margin:8px 0 10px;color:var(--indigo)}
.lc-body p{font-size:15.5px;color:#55555b}
.lc-more{display:inline-block;margin-top:14px;font-family:var(--sans);font-size:13px;letter-spacing:.08em;font-weight:600;color:#a8412a}
.empty{font-style:italic;color:#6a6a70}

/* one letter */
.letter-head .crumbs{font-size:12.5px;letter-spacing:.1em;text-transform:uppercase;color:rgba(245,239,225,.6);margin-bottom:22px}
.letter-head .crumbs a{color:inherit;text-decoration:none}
.letter-head .crumbs span{margin:0 8px}
.letter-head .dek{font-family:var(--serif);font-style:italic;font-size:20px;color:rgba(245,239,225,.88);max-width:720px;margin-top:16px}
.letter-head .byline{margin-top:22px;font-size:13.5px;letter-spacing:.08em;color:rgba(245,239,225,.7)}
.letter-head .byline a{color:var(--chrome);text-decoration:none;border-bottom:1px solid rgba(217,199,163,.4)}
.draft-note{display:inline-block;background:var(--coral);color:#fff;font-family:var(--sans);font-size:12px;letter-spacing:.1em;font-weight:600;padding:6px 12px;border-radius:999px;margin-bottom:18px}
.letter-cover{margin:-28px auto 0;max-width:820px;border-radius:18px;overflow:hidden;box-shadow:0 18px 44px rgba(30,42,74,.18)}
.letter-body{max-width:720px;margin:0 auto;padding:56px 0 24px;font-size:19px;line-height:1.8}
.letter-body>p{margin:0 0 1.35em}
.letter-body h2{font-size:clamp(24px,3vw,32px);font-weight:500;color:var(--indigo);margin:1.6em 0 .6em;line-height:1.2}
.letter-body h3{font-size:21px;font-weight:600;color:var(--indigo);margin:1.4em 0 .5em}
.letter-body a{color:#a8412a;text-decoration:underline;text-decoration-color:rgba(242,120,92,.5);text-underline-offset:3px}
.letter-body a:hover{text-decoration-color:var(--coral)}
.letter-body blockquote{border-left:3px solid var(--amber);padding:6px 0 6px 22px;margin:1.4em 0;font-style:italic;color:#4a4a50}
.letter-body blockquote p{margin:0}
.letter-body ul,.letter-body ol{margin:0 0 1.35em 1.4em}
.letter-body li{margin-bottom:.4em}
.letter-body hr{border:0;height:1px;background:linear-gradient(90deg,transparent,rgba(30,42,74,.25),transparent);margin:2.2em 0}
.letter-body figure{margin:1.8em 0}
.letter-body figure img{border-radius:14px}
.letter-body figcaption{font-family:var(--sans);font-size:13px;color:#7a7a80;margin-top:8px;text-align:center}
.letter-body strong{font-weight:600;color:var(--indigo)}
.letter-body .sign{font-family:var(--sans);font-weight:500;letter-spacing:.06em;color:var(--indigo);margin-top:2em}
.letter-next{display:flex;justify-content:space-between;gap:20px;max-width:720px;margin:36px auto 0}
.ln{flex:1;text-decoration:none;color:var(--indigo);font-family:var(--sans);font-weight:500;font-size:16px;line-height:1.3;padding:16px 18px;border:1px solid rgba(30,42,74,.14);border-radius:14px;background:#fff}
.ln small{display:block;font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:#7a7a80;margin-bottom:6px}
.ln.right{text-align:right}
.back{max-width:720px;margin:26px auto 70px;font-family:var(--sans);font-size:14px;letter-spacing:.06em}
.back a{color:#a8412a;text-decoration:none}

/* the email box on every letter */
.letter-cta{max-width:720px;margin:36px auto 0;background:linear-gradient(180deg,#1E2A4A 0%,#131B33 100%);color:var(--offwhite);border-radius:22px;padding:44px 36px;text-align:center;position:relative;overflow:hidden}
.letter-cta::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(60% 80% at 50% 110%,rgba(232,163,61,.28),transparent 70%)}
.cta-inner{position:relative;z-index:1}
.letter-cta .eyebrow{color:var(--teal)}.letter-cta .eyebrow::after{margin:10px auto 0}
.letter-cta h2{font-size:clamp(24px,3.4vw,34px);font-weight:500;margin-bottom:10px;color:var(--offwhite)}
.letter-cta p{max-width:520px;margin:0 auto 22px;font-size:16px;color:rgba(245,239,225,.85)}
.letter-cta form{display:flex;gap:12px;flex-wrap:wrap;justify-content:center}
.letter-cta input{flex:1;min-width:240px;max-width:380px;padding:15px 20px;border-radius:999px;border:1.5px solid rgba(217,199,163,.4);background:rgba(245,239,225,.08);font-family:var(--sans);font-size:15px;color:var(--offwhite);outline:none}
.letter-cta input::placeholder{color:rgba(245,239,225,.45)}
.letter-cta input:focus{border-color:var(--amber);background:rgba(245,239,225,.12)}
.btn{display:inline-block;padding:16px 36px;border-radius:999px;font-weight:600;font-size:15px;letter-spacing:.06em;text-decoration:none;transition:transform .25s var(--ease),box-shadow .25s var(--ease);cursor:pointer;border:none}
.btn-sun{background:linear-gradient(135deg,var(--amber),var(--coral));color:#fff;box-shadow:0 8px 24px rgba(232,163,61,.45),0 0 44px rgba(232,163,61,.35)}
.btn-sun:hover{transform:translateY(-2px)}
.btn[disabled]{opacity:.7;cursor:wait}
.stamp{display:none;align-items:center;justify-content:center;gap:16px;margin-top:18px;text-align:left}
.stamp.show{display:flex}
.stamp .hanko-img{width:54px;height:auto;flex:none}
.stamp b{display:block;font-family:var(--sans);font-size:16px}
.stamp span{font-size:14px;color:rgba(245,239,225,.8)}
.fverror{display:none;color:#F2A58C;font-family:var(--sans);font-size:13.5px;margin-top:12px}
.fverror.show{display:block}

/* footer (same as the site) */
footer{background:var(--night);color:rgba(245,239,225,.75);padding:56px 0 40px}
.foot-grid{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.foot-brand img.brushlogo{width:190px;margin:0 0 0 -10px}
.foot-tag{font-style:italic;color:var(--chrome);font-size:15px}
.foot-links{display:flex;gap:22px;flex-wrap:wrap}
.foot-links a{color:rgba(245,239,225,.75);text-decoration:none;font-family:var(--sans);font-size:13.5px;letter-spacing:.06em}
.foot-copy{margin-top:34px;font-size:12.5px;color:rgba(245,239,225,.4);font-family:var(--sans);letter-spacing:.08em}
.foot-legal a{color:inherit;text-decoration:none;border-bottom:1px solid rgba(245,239,225,.25)}

/* 404 */
.lost{min-height:70vh;display:flex;align-items:center;background:linear-gradient(180deg,var(--indigo),var(--night));color:var(--offwhite);padding:140px 0 80px;text-align:center}
.lost h1{font-size:clamp(34px,6vw,64px);font-weight:500}
.lost p{max-width:560px;margin:16px auto 28px;color:rgba(245,239,225,.85);font-size:18px}
.lost .btn{margin:6px}
@media(max-width:760px){.wrap{padding:0 18px}.letter-body{font-size:18px;padding-top:40px}.letters-hero,.letter-head{padding-top:112px}.letter-cta{padding:34px 20px}.letter-next{flex-direction:column}.ln.right{text-align:left}}

/* search + Start here (Oct 1, 2026) */
.letter-search{display:flex;gap:10px;max-width:620px;margin-top:26px}
.letter-search input{flex:1;min-width:0;padding:14px 18px;border-radius:999px;border:1.5px solid rgba(217,199,163,.4);background:rgba(245,239,225,.08);font-family:var(--sans);font-size:15px;color:var(--offwhite);outline:none}
.letter-search input::placeholder{color:rgba(245,239,225,.5)}
.letter-search input:focus{border-color:var(--amber);background:rgba(245,239,225,.12)}
.letter-search input::-webkit-search-cancel-button{filter:invert(1)}
.letter-search button{padding:14px 22px;border-radius:999px;border:1.5px solid rgba(232,163,61,.7);background:rgba(18,25,44,.6);color:#F8CB7C;font-family:var(--sans);font-weight:600;font-size:13px;letter-spacing:.1em;text-transform:uppercase;cursor:pointer}
.letter-search button:hover{background:rgba(232,163,61,.18)}
.search-note{margin-top:14px;font-family:var(--sans);font-size:14px;color:rgba(245,239,225,.8)}
.search-note a{color:var(--chrome)}
.list-title{font-family:var(--sans);font-size:13px;letter-spacing:.3em;text-transform:uppercase;font-weight:600;color:var(--teal);margin-bottom:18px}
.list-title::after{content:"";display:block;width:36px;height:2px;background:var(--amber);margin-top:10px}
.start-here{padding-bottom:0}
.letter-card.featured a{border:1.5px solid rgba(232,163,61,.55);box-shadow:0 10px 30px rgba(232,163,61,.14)}
.letter-card.featured .lc-body time{color:#a8412a}
.letter-card.featured .lc-body h2{font-size:24px}
.lc-snip{font-size:14px;color:#6a6a70;font-style:italic;margin-top:8px}
.letter-card[hidden],.list-title[hidden],.search-note[hidden],#noMatch[hidden]{display:none}
@media(max-width:760px){.letter-search{flex-direction:column}.letter-search button{width:100%}}