/* Bound & Byte website — colors and type match the app and its icon */
:root{
  --forest:#2e5a38;   /* icon background, primary */
  --deep:#1d3a25;     /* footer, headings on paper */
  --paper:#f2eee4;    /* icon book color, page background */
  --page:#e9e2cf;     /* slightly deeper paper for bands */
  --mint:#8fe4a8;     /* icon pixels, accent on dark */
  --cream:#f2eee4;    /* text on the green header, same in dark mode */
  --ink:#1f2a22;      /* body text */
  --muted:#55604f;
  --line:#d3c9b1;
  --font-display:"Newsreader",Georgia,"Times New Roman",serif;
  --font-body:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
}
@media (prefers-color-scheme:dark){
  :root{--paper:#16211a;--page:#1b2a20;--ink:#e8e3d4;--muted:#a9b3a2;--line:#2f4235;--deep:#e8e3d4}
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--paper);color:var(--ink);font:400 1.0625rem/1.65 var(--font-body)}
img{max-width:100%;display:block}
a{color:var(--forest);text-underline-offset:3px}
@media (prefers-color-scheme:dark){a{color:var(--mint)}}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--mint);outline-offset:3px;border-radius:4px}
.wrap{max-width:1080px;margin:0 auto;padding:0 16px}
.skip{position:absolute;left:-9999px}.skip:focus{left:16px;top:12px;z-index:9;background:var(--paper);padding:8px 12px}

/* header */
.site-head{background:var(--forest);color:var(--cream)}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;color:var(--cream);text-decoration:none;font:600 1.3rem/1 var(--font-display)}
.brand img{width:34px;height:34px;border-radius:8px}
.nav{display:flex;gap:4px 18px;flex-wrap:wrap}
.nav a{color:var(--cream);text-decoration:none;font-size:.95rem;padding:6px 0;border-bottom:2px solid transparent}
.nav a:hover,.nav a[aria-current=page]{border-bottom-color:var(--mint)}

/* hero */
.hero{background:var(--forest);color:var(--cream);overflow:hidden;position:relative}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:40px;align-items:center;padding-top:40px;padding-bottom:0}
.hero h1{font:600 clamp(2.4rem,6.2vw,4.1rem)/1.04 var(--font-display);letter-spacing:-.01em;margin:0 0 18px;max-width:17ch}
.hero p.lede{font-size:1.15rem;max-width:34ch;color:#dfe8dc;margin:0 0 26px}
.cta{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-bottom:56px}
.btn{display:inline-flex;align-items:center;gap:8px;font:600 1rem/1 var(--font-body);padding:14px 20px;border-radius:999px;text-decoration:none;border:2px solid transparent}
.btn-mint{background:var(--mint);color:#173020}
.btn-mint:hover{background:#a6edba}
.btn-line{border-color:#9fbea6;color:var(--cream)}
.btn-line:hover{border-color:var(--mint)}
.soon{font-size:.92rem;color:#c9d8c8}
.hero-art{position:relative;align-self:end;justify-self:center;width:min(320px,80vw)}
.phone{border:10px solid #0f1f14;border-bottom:0;border-radius:36px 36px 0 0;overflow:hidden;background:#0f1f14;box-shadow:0 30px 60px rgba(0,0,0,.35)}
.phone img{width:100%;height:auto}
/* the icon's pixels, rising off the books */
.pixels{position:absolute;right:-46px;top:30px;width:120px;height:160px;pointer-events:none}
.pixels i{position:absolute;width:var(--s,16px);height:var(--s,16px);background:var(--mint);opacity:0;animation:rise .9s ease-out forwards;animation-delay:var(--d,0s)}
@keyframes rise{from{opacity:0;transform:translate(-14px,14px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.pixels i{animation:none;opacity:1}}

/* the headline feature: cover and spine photos */
.photos{background:var(--page);padding:72px 0}
.photos .wrap{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:48px;align-items:center}
.photos h2{font:600 clamp(1.8rem,3.6vw,2.5rem)/1.1 var(--font-display);color:var(--deep);margin:0 0 14px;max-width:21ch}
.photos p{margin:0 0 12px;max-width:44ch}
.photos ul{margin:8px 0 0;padding-left:1.1em;max-width:44ch}
.photos li{margin:.3em 0}
.photos-shots{display:flex;gap:20px;justify-content:center}
.photos-shots .shot{width:min(260px,44vw);margin:0}
.photos-shots .shot:last-child{transform:translateY(36px)}
@media (max-width:760px){.photos .wrap{grid-template-columns:1fr;gap:28px}.photos-shots{gap:12px}.photos-shots .shot{border-width:6px;border-radius:20px}.photos-shots .shot:last-child{transform:translateY(24px)}.photos{padding-bottom:84px}}

/* features: alternating rows, the app does the talking */
.features{padding:72px 0 24px}
.features.first{padding-bottom:0}
.features.first .feature{margin-bottom:56px}
.feature{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:center;margin:0 0 72px}
.feature:nth-child(even) .shot{order:2}
.feature h2{font:600 clamp(1.7rem,3.6vw,2.4rem)/1.12 var(--font-display);color:var(--deep);margin:0 0 12px;max-width:18ch}
.feature p{margin:0 0 12px;max-width:44ch}
.feature ul{margin:8px 0 0;padding-left:1.1em;max-width:44ch}
.feature li{margin:.25em 0}
.shot{justify-self:center;width:min(300px,78vw);aspect-ratio:9/14;border-radius:28px;overflow:hidden;border:8px solid #13261a;box-shadow:0 18px 40px rgba(20,40,25,.22)}
.shot img{width:100%;height:100%;object-fit:cover;object-position:top}


/* promise band */
.promise{padding:64px 0}
.promise .wrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px}
.promise h2{font:600 clamp(1.6rem,3.4vw,2.2rem)/1.15 var(--font-display);color:var(--deep);margin:0}
.promise p{margin:0 0 12px;max-width:52ch}

/* inner pages */
.page{padding:44px 0 64px}
.page .col{max-width:720px}
.page h1{font:600 clamp(2rem,5vw,2.8rem)/1.1 var(--font-display);color:var(--deep);margin:0 0 8px}
.page h2{font:600 1.45rem/1.25 var(--font-display);color:var(--deep);margin:36px 0 10px}
.page h3{font:600 1.05rem/1.4 var(--font-body);margin:22px 0 6px}
.page p,.page li{max-width:68ch}
.page ul,.page ol{padding-left:1.2em}
.page li{margin:.35em 0}
.dates{color:var(--muted);font-size:.92rem;margin:0 0 26px}
.box{background:var(--page);border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin:18px 0}
.box h2:first-child{margin-top:0}
table{width:100%;border-collapse:collapse;margin:10px 0 6px;font-size:.95rem}
th,td{text-align:left;vertical-align:top;padding:9px 10px;border-bottom:1px solid var(--line)}
th{font-weight:600;color:var(--muted)}
.tbl{overflow-x:auto}
.note{color:var(--muted);font-size:.94rem}
details{border-bottom:1px solid var(--line);padding:4px 0}
details summary{cursor:pointer;list-style:none;padding:14px 32px 14px 0;font-weight:600;position:relative}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"+";position:absolute;right:4px;top:10px;font:400 1.5rem/1 var(--font-body);color:var(--forest)}
details[open] summary::after{content:"–"}
details > div{padding:0 0 16px}
.faq-group{font:600 1.3rem/1.3 var(--font-display);color:var(--deep);margin:34px 0 4px}
.btn-solid{background:var(--forest);color:var(--cream)}
.btn-solid:hover{background:#244a2d}
@media (prefers-color-scheme:dark){.btn-solid{background:var(--mint);color:#173020}}

/* footer */
.site-foot{background:#173020;color:#cfdccd;padding:36px 0;font-size:.95rem}
.site-foot .wrap{display:flex;flex-wrap:wrap;gap:16px 32px;justify-content:space-between;align-items:flex-start}
.site-foot a{color:#e7f2e3}
.site-foot nav{display:flex;flex-wrap:wrap;gap:8px 20px}
.site-foot small{display:block;color:#9fb39d;margin-top:6px}

@media (max-width:760px){
  .hero .wrap{grid-template-columns:1fr;padding-top:28px;gap:8px}
  .cta{margin-bottom:36px}
  .pixels{right:-30px;transform:scale(.8)}
  .feature{grid-template-columns:1fr;gap:24px;margin-bottom:56px}
  .feature:nth-child(even) .shot{order:0}
  .promise .wrap{grid-template-columns:1fr;gap:12px}
}