:root{--bg:#F5F9FD;--card:#fff;--ink:#0F2E5C;--muted:#4A6283;--line:#DCE6F2;--blue:#0EA5F8;--navy:#00377D;--soft:#E3F4FE;--ok:#16834A;--radius:16px;--shadow:0 6px 18px -8px rgba(15,46,92,.25)}
*{box-sizing:border-box}[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:18px/1.6 Poppins,system-ui,sans-serif;color:var(--ink);background:var(--bg);min-height:100vh}
h1,h2,h3{margin:0;line-height:1.25}h1{font-size:clamp(1.6rem,5vw,2.1rem);font-weight:800;letter-spacing:-.02em}h2{font-size:1.3rem;font-weight:800}
a{color:var(--navy)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
:focus-visible{outline:3px solid #7CCBF9;outline-offset:2px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:52px;padding:12px 22px;border-radius:999px;border:2px solid var(--blue);background:var(--blue);color:#fff;font:700 1rem/1.2 Poppins,sans-serif;text-decoration:none;cursor:pointer;text-align:center}
.btn:hover{background:#0B8FD8;border-color:#0B8FD8}.btn.ghost{background:#fff;color:var(--navy);border-color:var(--line)}.btn.ghost:hover{border-color:var(--blue)}
.btn.navy{background:var(--navy);border-color:var(--navy)}.btn.big{width:100%;font-size:1.08rem}.btn.small{min-height:44px;padding:8px 16px;font-size:.92rem}
.btn:disabled{opacity:.5}
.linklike{background:none;border:0;font:600 .95rem Poppins,sans-serif;color:var(--muted);cursor:pointer;text-decoration:underline;padding:8px}
.logo{font-weight:800;font-size:1.25rem;text-decoration:none;background:linear-gradient(90deg,var(--navy),var(--blue));-webkit-background-clip:text;background-clip:text;color:transparent}
.vip-badge{font-size:.8rem;font-weight:700;color:#fff;background:linear-gradient(90deg,#B7791F,#E6A93A);padding:4px 12px;border-radius:999px}

/* login */
#login{min-height:100vh;display:grid;place-items:center;padding:20px 16px}
.card{width:100%;max-width:440px;background:#fff;border:1px solid var(--line);border-radius:24px;padding:36px 26px;text-align:center;box-shadow:0 24px 48px -28px rgba(15,46,92,.35)}
.card .logo{font-size:2rem;display:block}.sub{color:var(--muted);margin:6px 0 24px}
#login-form{display:grid;gap:12px;text-align:left}.label{font-weight:600;font-size:.95rem}
#email{width:100%;font:inherit;font-size:1.15rem;padding:16px;border:2px solid var(--line);border-radius:14px;background:var(--bg);color:var(--ink)}#email:focus{outline:none;border-color:var(--blue);background:#fff}
#login-error{color:#B3261E;margin:14px 0 0}.fine{font-size:.88rem;color:var(--muted);margin:16px 0 0}
.help{text-align:left;background:#FFF7E6;border-radius:14px;padding:16px;margin-top:16px}.help-title{font-weight:700;margin:0 0 6px}.help ul{margin:0 0 14px;padding-left:20px}

/* app shell */
.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:14px;padding:10px 20px;background:#fff;border-bottom:1px solid var(--line)}
.tabs{display:flex;gap:4px;margin:0 auto}
.tabs a{display:flex;align-items:center;gap:6px;padding:10px 16px;border-radius:999px;text-decoration:none;color:var(--muted);font-weight:600;font-size:.95rem}
.tabs a i{font-style:normal}.tabs a.on{background:var(--soft);color:var(--navy)}
main{max-width:1100px;margin:0 auto;padding:26px 18px 120px}
@media(max-width:820px){
  .topbar{padding:10px 16px}.topbar #logout{margin-left:auto}
  .tabs{position:fixed;bottom:0;left:0;right:0;margin:0;background:#fff;border-top:1px solid var(--line);justify-content:space-around;padding:6px 4px calc(6px + env(safe-area-inset-bottom));z-index:30}
  .tabs a{flex-direction:column;gap:2px;padding:6px 4px;font-size:.72rem;border-radius:12px;flex:1;text-align:center}.tabs a i{font-size:1.35rem}
}
.section{margin-top:34px}.section-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px}
.muted{color:var(--muted)}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px}

/* home */
.hello p{margin:6px 0 0;color:var(--muted)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:14px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px}.step b{display:grid;place-items:center;width:36px;height:36px;border-radius:50%;background:var(--blue);color:#fff;margin-bottom:8px}
.step p{margin:0;font-size:.95rem}
@media(max-width:640px){.steps{grid-template-columns:1fr}}
.continue{display:flex;gap:16px;align-items:center;background:linear-gradient(135deg,var(--navy),#0B6FC0);color:#fff;border-radius:20px;padding:18px;box-shadow:var(--shadow)}
.continue img,.continue .ph{width:70px;height:94px;border-radius:10px;object-fit:cover;background:#ffffff33;flex:none}
.continue h3{font-size:1.05rem}.continue p{margin:4px 0 10px;opacity:.85;font-size:.9rem}.continue .btn{background:#fff;color:var(--navy);border-color:#fff}
.vip-promo{display:flex;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap;background:#FFF7E6;border:1px solid #F5DDAE;border-radius:20px;padding:20px}
.vip-promo h3{font-size:1.15rem}.vip-promo p{margin:4px 0 0;color:#7A4E0B}

/* grid */
.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:16px 0}
.search{flex:1;min-width:220px;font:inherit;padding:14px 16px;border:2px solid var(--line);border-radius:14px;background:#fff}.search:focus{outline:none;border-color:var(--blue)}
.chips{display:flex;gap:8px;flex-wrap:wrap}.chip{border:2px solid var(--line);background:#fff;border-radius:999px;padding:8px 16px;font:600 .9rem Poppins,sans-serif;color:var(--muted);cursor:pointer}.chip.on{border-color:var(--blue);background:var(--soft);color:var(--navy)}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 14px}
@media(min-width:760px){.grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:26px 20px}}
.book{display:flex;flex-direction:column;gap:10px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:10px;text-decoration:none;color:inherit;cursor:pointer;transition:transform .12s}
.book:hover{transform:translateY(-2px)}
.cover{position:relative;aspect-ratio:3/4;border-radius:12px;overflow:hidden;background:var(--soft)}.cover img{width:100%;height:100%;object-fit:cover;display:block}
.cover .ph{display:grid;place-items:center;height:100%;font-size:2.4rem}
.book.locked .cover img{filter:grayscale(1);opacity:.7}
.tag{position:absolute;top:8px;left:8px;font-size:.72rem;font-weight:700;padding:3px 10px;border-radius:999px;background:#fff;color:var(--navy)}
.tag.lock{left:auto;right:8px;background:var(--navy);color:#fff}.tag.kind{top:auto;bottom:8px}
.book h3{font-size:.95rem;font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;padding:0 2px}
.book .cta{font-size:.85rem;font-weight:700;color:var(--blue);padding:0 2px 4px}.book.locked .cta{color:var(--muted)}
.empty{text-align:center;padding:50px 16px;color:var(--muted)}.empty div{font-size:3rem}.empty h2{color:var(--ink);margin:8px 0}

/* book page */
.back{display:inline-flex;align-items:center;gap:6px;font-weight:600;text-decoration:none;color:var(--muted);margin-bottom:16px;font-size:1rem;min-height:44px}
.bookpage{display:grid;grid-template-columns:240px 1fr;gap:28px;align-items:start}
.bookpage>.cover{width:100%}
@media(max-width:700px){.bookpage{grid-template-columns:1fr}.bookpage>.cover{max-width:200px;margin:0 auto}}
.bookpage .actions{display:grid;gap:10px;margin-top:20px;max-width:420px}
.bookpage .row2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.fav{background:#fff;border:2px solid var(--line);border-radius:999px;min-height:52px;font:700 1rem Poppins,sans-serif;color:var(--ink);cursor:pointer}.fav.on{border-color:#F3A6B5;background:#FFF0F3}
.blurb{color:var(--muted);margin:10px 0 0}
.bonus{display:flex;gap:14px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px;margin-top:10px}
.bonus img,.bonus .ph{width:52px;height:68px;border-radius:8px;object-fit:cover;background:var(--soft);flex:none;display:grid;place-items:center}
.bonus div{flex:1}.bonus h4{margin:0;font-size:.98rem}.bonus small{color:var(--muted)}
.notice{background:var(--soft);border-radius:14px;padding:14px 16px;margin-top:16px;font-size:.95rem}
audio{width:100%;margin-top:16px}

/* help */
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;margin-top:10px}
.faq summary{cursor:pointer;padding:16px 18px;font-weight:700;list-style:none}.faq summary::after{content:"+";float:right;font-size:1.3rem;line-height:1}
.faq details[open] summary::after{content:"–"}.faq details p,.faq details ol{margin:0;padding:0 18px 16px 38px;color:var(--muted)}.faq details p{padding-left:18px}

/* reader */
.reader{position:fixed;inset:0;z-index:50;background:#2B3442;display:flex;flex-direction:column}
.rbar,.rnav{display:flex;align-items:center;gap:10px;padding:10px 14px;background:#141B26;color:#fff}
.rtitle{flex:1;font-weight:600;font-size:.95rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.rtools{display:flex;gap:6px}
.rbtn{background:#ffffff1f;color:#fff;border:0;border-radius:999px;min-height:44px;padding:8px 16px;font:700 .95rem Poppins,sans-serif;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center}
.rbtn.big{min-height:52px;padding:10px 22px;font-size:1rem}
.rpages{flex:1;overflow:auto;padding:16px;display:flex;justify-content:center;align-items:flex-start}
.rpages canvas{background:#fff;box-shadow:0 8px 24px rgba(0,0,0,.4);max-width:none}
.rnav{justify-content:space-between;padding-bottom:calc(10px + env(safe-area-inset-bottom))}.rpos{font-weight:600}
@media(max-width:600px){.rtools #r-dl{display:none}}