/* 15 Seconds world. Style taken from the cover of 15 Seconds Is All You Need!: off-white paper, bold condensed sans,
   red 15 + black SECONDS, red script "is all you need!" with a brush underline, a red START button with a gold ring. */
@font-face{font-family:'C';src:url(fonts/BarlowCondensed-ExtraBold.woff2) format('woff2');font-weight:800;font-display:swap}
@font-face{font-family:'C';src:url(fonts/BarlowCondensed-Bold.woff2) format('woff2');font-weight:700;font-display:swap}
@font-face{font-family:'C';src:url(fonts/BarlowCondensed-SemiBold.woff2) format('woff2');font-weight:600;font-display:swap}
@font-face{font-family:'B';src:url(fonts/Barlow-Regular.woff2) format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:'B';src:url(fonts/Barlow-Italic.woff2) format('woff2');font-weight:400;font-style:italic;font-display:swap}
@font-face{font-family:'B';src:url(fonts/Barlow-SemiBold.woff2) format('woff2');font-weight:600;font-display:swap}
@font-face{font-family:'B';src:url(fonts/Barlow-Bold.woff2) format('woff2');font-weight:700;font-display:swap}
@font-face{font-family:'S';src:url(fonts/DancingScript-Bold.woff2) format('woff2');font-weight:700;font-display:swap}
@font-face{font-family:'Q';src:url(fonts/FanwoodText-Regular.woff2) format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:'Q';src:url(fonts/FanwoodText-Italic.woff2) format('woff2');font-weight:400;font-style:italic;font-display:swap}
:root{--paper:#FEF9F3;--card:#FFFFFF;--ink:#141414;--text:#2E2E2E;--mute:#6B6760;--rule:#DED8CC;--tint:#EFEAE0;--red:#D22027;--red-d:#A9161C;--gold:#C9962E;--gold-l:#F1D27A;--ok:#1E7A46;
  --h15-ink:var(--ink);--h15-text:var(--text);--h15-mute:var(--mute);--h15-rule:var(--rule);--h15-tint:var(--tint);--h15-accent:var(--red);--h15-ok:var(--ok);--h15-head:'C',sans-serif;--h15-body:'B',sans-serif;--h15-radius:12px;--h15-bg:var(--card);
  --k15-ink:var(--ink);--k15-accent:var(--red);--k15-text:var(--text);--k15-gray:var(--mute);--k15-rule:var(--rule);--k15-ghost:var(--tint);--k15-cream:var(--paper);--k15-ok:var(--ok);
  --b15-ink:var(--ink);--b15-accent:var(--red);--b15-text:var(--text);--b15-muted:var(--mute);--b15-rule:var(--rule);--b15-bg:var(--card);--b15-head:'C',sans-serif;--b15-font:'B',sans-serif;--b15-bottom:calc(84px + env(safe-area-inset-bottom));
  --k15-head:'C',sans-serif;--k15-cond:'C',sans-serif;--k15-body:'B',sans-serif;--k15-hand:'S',cursive}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;background:var(--paper)}
body{margin:0;background:var(--paper);color:var(--text);font:400 17px/1.5 'B',system-ui,sans-serif;padding-bottom:calc(78px + env(safe-area-inset-bottom))}
a{color:var(--red)}
img{max-width:100%}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:#fff;padding:8px;z-index:99}
button{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--red);outline-offset:2px}
/* top bar (static, scrolls with the page) */
.top{display:flex;align-items:center;justify-content:space-between;max-width:760px;margin:0 auto;padding:calc(12px + env(safe-area-inset-top)) 18px 6px}
.brand{display:flex;align-items:baseline;gap:5px;text-decoration:none;font:800 22px/1 'C';letter-spacing:.02em}
.brand b{color:var(--red)}.brand span{color:var(--ink)}
.appchip{display:grid;grid-template-columns:8px 8px;gap:4px;padding:10px;border:1.5px solid var(--rule);border-radius:10px;background:var(--card);cursor:pointer}
.appchip i{width:8px;height:8px;border-radius:2px;background:var(--ink)}.appchip i:first-child{background:var(--red)}
main{display:block;max-width:760px;margin:0 auto;padding:6px 18px 30px;outline:none}
/* bottom tabs */
.tabs{position:fixed;left:0;right:0;bottom:0;z-index:50;display:flex;justify-content:space-around;background:rgba(254,249,243,.97);border-top:1px solid var(--rule);padding:6px 4px calc(6px + env(safe-area-inset-bottom))}
.tabs a{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;padding:4px 0;text-decoration:none;color:var(--mute);font:700 12px/1 'C';letter-spacing:.12em;text-transform:uppercase;min-height:48px;justify-content:center}
.tabs svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.tabs a.on{color:var(--red)}
@media (min-width:900px){.tabs{max-width:760px;margin:0 auto;border:1px solid var(--rule);border-bottom:0;border-radius:14px 14px 0 0}}
/* type */
.cap{font:700 13px/1.2 'C';letter-spacing:.18em;text-transform:uppercase;color:var(--mute)}
.cap.red{color:var(--red)}
.h1{font:800 clamp(34px,9vw,48px)/.95 'C';color:var(--ink);text-transform:uppercase;letter-spacing:.01em;margin:10px 0 4px}
.h1 em{font-style:normal;color:var(--red)}
.h2{font:800 26px/1 'C';color:var(--ink);text-transform:uppercase;margin:0}
.h3{font:700 20px/1.1 'C';color:var(--ink);text-transform:uppercase;letter-spacing:.02em;margin:0}
.script{font:700 clamp(26px,7vw,36px)/1 'S',cursive;color:var(--red);display:inline-block;position:relative;padding-bottom:10px}
.brush{display:block;height:12px;margin-top:-4px}
.lead{font-size:18px;color:var(--text);margin:8px 0 0}
.small{font-size:14.5px;color:var(--mute);line-height:1.45;margin:6px 0 0}
.mt8{margin-top:8px}.mt16{margin-top:16px}.mt24{margin-top:24px}
.rule{height:3px;width:56px;background:var(--red);border-radius:3px;margin:12px 0 16px}
.backlink{display:inline-block;margin:6px 0 2px;font:700 14px/1 'C';letter-spacing:.12em;text-transform:uppercase;color:var(--mute);text-decoration:none;padding:8px 0}
/* hero = the cover */
.hero{text-align:center;padding:18px 0 4px}
.hero .tag{font:700 15px/1.35 'C';letter-spacing:.14em;color:var(--ink);text-transform:uppercase}
.hero .tag b{color:var(--red);font-weight:700}
.hero .dash{display:block;width:48px;height:6px;margin:12px auto 4px}
.hero .n15{font:800 clamp(150px,44vw,230px)/.8 'C';color:var(--red);letter-spacing:-.02em;margin-top:6px}
.hero .sec{font:800 clamp(72px,21vw,112px)/.9 'C';color:var(--ink);letter-spacing:.005em;margin-top:2px}
.hero .script{font-size:clamp(40px,12vw,62px);margin-top:4px}
.hero .script .brush{width:92%;margin:-2px auto 0}
.hero .by{font:600 17px/1 'C';letter-spacing:.42em;color:var(--ink);margin:18px 0 0;padding-left:.42em}
.start{position:relative;display:inline-flex;align-items:center;justify-content:center;width:112px;height:112px;border-radius:50%;margin:18px auto 0;border:0;cursor:pointer;text-decoration:none;
  background:radial-gradient(circle at 50% 50%,#E23A3F 0 46%,#B9161C 62%,transparent 63%),conic-gradient(from 200deg,var(--gold),var(--gold-l),var(--gold),#8F6418,var(--gold-l),var(--gold));
  box-shadow:0 6px 16px rgba(0,0,0,.22),inset 0 2px 3px rgba(255,255,255,.35);font:800 27px/1 'C';color:#fff;letter-spacing:.02em;text-shadow:0 1px 1px rgba(0,0,0,.35)}
.start::before{content:'';position:absolute;inset:9px;border-radius:50%;background:radial-gradient(circle at 50% 30%,#EE4A4F,#C11B21 60%,#9E1015);box-shadow:inset 0 -3px 6px rgba(0,0,0,.25)}
.start span{position:relative}
.start:active{transform:translateY(1px) scale(.98)}
.start.sm{width:78px;height:78px;font-size:19px}.start.sm::before{inset:6px}
/* tiles */
.tiles{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:18px}
.tile{display:block;background:var(--card);border:1.5px solid var(--rule);border-radius:12px;padding:14px;text-decoration:none;color:var(--text);min-height:104px}
.tile:hover{border-color:var(--ink)}
.tile .h3{font-size:21px}.tile p{margin:6px 0 0;font-size:14px;line-height:1.35;color:var(--mute)}
.tile .k{display:inline-block;font:800 13px/1 'C';color:#fff;background:var(--red);border-radius:4px;padding:4px 6px;letter-spacing:.08em;margin-bottom:8px}
.tile.wide{grid-column:1/-1}
@media (min-width:700px){.tiles{grid-template-columns:repeat(3,1fr)}}
.card{background:var(--card);border:1.5px solid var(--rule);border-radius:12px;padding:16px;margin-top:12px}
.card.red{border-left:5px solid var(--red)}
/* books */
.book{display:grid;grid-template-columns:96px 1fr;gap:14px;background:var(--card);border:1.5px solid var(--rule);border-radius:12px;padding:14px;margin-top:12px}
.book .cv{width:96px;align-self:start}
.book .cv img{width:96px;height:auto;display:block;border-radius:3px;box-shadow:0 3px 10px rgba(0,0,0,.2)}
.tilecv{width:96px;aspect-ratio:2/3;border-radius:3px;color:#fff;padding:9px 7px;display:flex;flex-direction:column;justify-content:center;text-align:center;gap:6px;box-shadow:0 3px 10px rgba(0,0,0,.2)}
.tilecv .t{font:700 8px/1.1 'C';letter-spacing:.14em}.tilecv .b{font:800 17px/.95 'C'}.tilecv .s{font:600 6.5px/1.3 'C';letter-spacing:.08em;opacity:.85}
.book .kind{font:700 12px/1 'C';letter-spacing:.16em;text-transform:uppercase;color:var(--red)}
.book .tt{font:800 21px/1.02 'C';color:var(--ink);text-transform:uppercase;margin:5px 0 0}
.book .st{font:600 15px/1.25 'C';color:var(--text);margin:3px 0 0;letter-spacing:.02em}
.book .bl{grid-column:1/-1;margin:2px 0 0;font-size:15.5px;line-height:1.5}
.book .row{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.book .meta{grid-column:1/-1;font-size:13px;color:var(--mute)}
.flag{display:inline-block;font:700 11px/1 'C';letter-spacing:.1em;text-transform:uppercase;background:#FFF3CC;color:#7A5A00;border-radius:4px;padding:4px 6px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px;padding:10px 16px;border-radius:999px;border:1.5px solid var(--ink);background:transparent;color:var(--ink);font:700 15px/1 'C';letter-spacing:.1em;text-transform:uppercase;text-decoration:none;cursor:pointer}
.btn.red{background:var(--red);border-color:var(--red);color:#fff}
.btn.ghost{border-color:var(--rule);color:var(--mute)}
.btn.soon{border-style:dashed;border-color:var(--rule);color:var(--mute);cursor:default}
.btn.full{width:100%}
.btn[disabled]{opacity:.5;cursor:default}
/* toggles */
.own{display:flex;align-items:center;gap:10px;cursor:pointer;user-select:none;font:700 15px/1 'C';letter-spacing:.08em;text-transform:uppercase;color:var(--ink);min-height:44px}
.own input{position:absolute;opacity:0;width:1px;height:1px}
.own .sw{width:46px;height:28px;border-radius:999px;background:#CFC8BA;position:relative;transition:background .15s;flex:0 0 auto}
.own .sw::after{content:'';position:absolute;top:3px;left:3px;width:22px;height:22px;border-radius:50%;background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.25);transition:transform .15s}
.own input:checked+.sw{background:var(--red)}.own input:checked+.sw::after{transform:translateX(18px)}
.own input:focus-visible+.sw{outline:2px solid var(--ink);outline-offset:2px}
.shelfrow{display:flex;align-items:center;gap:12px;padding:10px 0;border-top:1px solid var(--rule)}
.shelfrow:first-child{border-top:0}
.shelfrow .tx{flex:1;min-width:0}.shelfrow .nm{font:700 17px/1.1 'C';color:var(--ink);text-transform:uppercase}.shelfrow .sb{font-size:13.5px;color:var(--mute);margin-top:2px}
.seen{font:700 11px/1 'C';letter-spacing:.1em;color:var(--ok);text-transform:uppercase}
.meter{display:flex;gap:4px;margin-top:10px}.meter i{flex:1;height:8px;border-radius:2px;background:var(--tint)}.meter i.on{background:var(--red)}
/* forms (never in a fixed ancestor; 16px+ inputs) */
label.f{display:block;font:700 13px/1.2 'C';letter-spacing:.16em;text-transform:uppercase;color:var(--mute);margin:14px 0 6px}
input.t,textarea.t{width:100%;font:400 18px/1.3 'B';padding:13px 14px;border:1.5px solid var(--rule);border-radius:10px;background:#fff;color:var(--ink)}
input.t:focus,textarea.t:focus{border-color:var(--ink);outline:none}
.err{color:var(--red-d);font-size:15px;margin:10px 0 0}
.q{font-size:17px;line-height:1.45}
.q b{color:var(--ink)}
/* answers */
.ans{background:var(--card);border:1.5px solid var(--rule);border-left:5px solid var(--red);border-radius:12px;padding:16px;margin-top:12px}
.ans blockquote{margin:0;font:400 19px/1.45 'Q',Georgia,serif;color:var(--ink)}
.ans blockquote::before{content:'\201C'}.ans blockquote::after{content:'\201D'}
.ans .pg{display:flex;align-items:baseline;gap:10px;margin-top:10px;flex-wrap:wrap}
.ans .pg b{font:800 22px/1 'C';color:var(--red)}
.ans .pg span{font:600 14px/1.2 'C';letter-spacing:.06em;color:var(--mute);text-transform:uppercase}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.chip{border:1.5px solid var(--rule);background:#fff;border-radius:999px;padding:9px 13px;font:600 14px/1 'B';color:var(--text);cursor:pointer;min-height:40px}
.chip:hover{border-color:var(--ink)}
/* coin */
.coinsec{display:flex;justify-content:center;margin:12px 0 4px}
.moment{padding:10px 0;border-top:1px solid var(--rule);font-size:15.5px}
.moment .w{font:700 12px/1 'C';letter-spacing:.14em;color:var(--mute);text-transform:uppercase}
.moment audio{width:100%;margin-top:6px}
/* sheet / toast */
.sheet{position:fixed;inset:0;z-index:900;background:rgba(0,0,0,.45);display:flex;align-items:flex-end;justify-content:center}
.sheet[hidden]{display:none}
.sheet .pane{background:var(--paper);width:100%;max-width:520px;max-height:88vh;overflow:auto;border-radius:18px 18px 0 0;padding:20px 18px calc(20px + env(safe-area-inset-bottom))}
@media (min-width:700px){.sheet{align-items:center}.sheet .pane{border-radius:18px}}
.toast{position:fixed;left:50%;bottom:calc(92px + env(safe-area-inset-bottom));transform:translateX(-50%);background:var(--ink);color:#fff;padding:12px 16px;border-radius:10px;font-size:15px;z-index:950;max-width:92vw;box-shadow:0 6px 16px rgba(0,0,0,.25)}
.toast[hidden]{display:none}
.foot{text-align:center;margin:30px 0 0;font:600 12px/1.6 'C';letter-spacing:.2em;color:var(--mute);text-transform:uppercase}
.k15{font-size:16px}

/* world has no streak: hide Connect's heads-up switch (notify stays off) */
.k15-box:has(#nt){display:none}
/* Backup15 (shared helper) placement + our restore card */
#bk15{max-width:760px;margin:0 auto;padding:0 18px}#bk15:empty{display:none}
.b15-card{border-radius:12px;border:1.5px solid var(--rule);border-left:5px solid var(--red)}.b15-h{font-weight:800}
.b15-btn{border-radius:10px}.b15-btn:not(.ghost){background:var(--red)}
.bkrow{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.bkfile{position:relative;overflow:hidden}
.bkfile input{position:absolute;inset:0;width:100%;height:100%;opacity:0;font-size:16px;cursor:pointer}
.bkmsg{font-size:16px;margin-top:12px}.bkmsg.err{color:var(--red)}
/* keep toasts clear of the backup nudge */
body:has(.b15-nudge) .toast{bottom:calc(250px + env(safe-area-inset-bottom))}
/* home hero = cover art. The lockup is a transparent cut-out on the sampled paper colour (#FEF9F3), so there is no box edge. */
.hero .lockup{margin:10px auto 0;width:min(100%,380px);font-size:0;line-height:0}
.hero .lockup img{display:block;width:100%;height:auto}
.startart{display:inline-block;width:120px;height:120px;border-radius:50%;margin:12px auto 10px;-webkit-tap-highlight-color:transparent;
  filter:drop-shadow(0 7px 10px rgba(60,20,10,.28)) drop-shadow(0 2px 3px rgba(0,0,0,.18));transition:filter .12s}
.startart img{display:block;width:120px;height:120px}
.startart:active{filter:drop-shadow(0 3px 5px rgba(60,20,10,.3));transform:translateY(2px)}
.startart:focus-visible{outline:3px solid var(--red);outline-offset:4px}
.shelfrow .thumb{width:40px;height:auto;flex:none;border-radius:2px;box-shadow:0 1px 4px rgba(0,0,0,.2);align-self:center}
.shelfrow .thumb.none{height:60px;background:var(--tint);box-shadow:none}
.ulead{display:flex;gap:14px;align-items:flex-start;margin-top:8px}.ulead .lead{margin:0}
.ucover{width:96px;height:auto;flex:none;border-radius:3px;box-shadow:0 3px 10px rgba(0,0,0,.2)}