/* Atlas PWA: claymorphism, as the Android app (android/lib/theme/clay.dart) and
   design/android/3d/index.html#clay: puffy pastel surfaces, pressable bottom edges,
   Fredoka for headings, Nunito for text. */
@font-face{font-family:Fredoka;src:url(fonts/Fredoka.ttf) format("truetype");font-weight:300 700;font-display:swap}
@font-face{font-family:Nunito;src:url(fonts/Nunito.ttf) format("truetype");font-weight:200 1000;font-display:swap}
:root{
 --ink:#2E2752;--muted:#7A6F9E;--bg:#FFF6EC;--surface:#fff;--brand:#1560E8;
 --primary:#2F6DF0;--primary-edge:#1B4FC0;--primary-soft:#DFE8FF;--on-primary-soft:#1B3F99;
 --yellow:#FFD76A;--yellow-edge:#E0B13A;--on-yellow:#4A3200;
 --green:#8EE6B5;--green-edge:#5CC48D;--on-green:#0B4A2C;--green-text:#1F7A4F;
 --warn:#FFE6B8;--on-warn:#5A3A00;--pink:#FFADC9;--lilac-edge:#E6DCF7;--outline:#D8CDEF;--outline-soft:#EEE6FB;--red:#D64545;
 --clay:10px 14px 24px rgba(110,84,190,.16),inset -6px -8px 14px rgba(110,84,190,.08),inset 6px 6px 12px rgba(255,255,255,.95);
 --d:Fredoka,Nunito,system-ui,sans-serif;--t:Nunito,system-ui,-apple-system,"Segoe UI",sans-serif;
 --safe-top:env(safe-area-inset-top,0px);--safe-bottom:env(safe-area-inset-bottom,0px);
 color-scheme:light;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{margin:0;min-height:100vh;min-height:100dvh;background:radial-gradient(40% 30% at 0% 0%,#ffe1ec 0,transparent 70%),radial-gradient(40% 30% at 100% 10%,#dfeaff 0,transparent 70%),var(--bg);background-attachment:fixed;color:var(--ink);font:500 16px/1.5 var(--t);overflow-x:hidden}
h1,h2,h3,h4{font-family:var(--d);font-weight:600;line-height:1.2;margin:0 0 .5em}
h1{font-size:26px}h2{font-size:21px}h3{font-size:17px}
p{margin:0 0 .8em}
a{color:var(--primary)}
img{max-width:100%}
.muted{color:var(--muted)}.small{font-size:13.5px}.center{text-align:center}.pad{padding:16px}.grow{flex:1}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.stack{display:grid;gap:12px}
[hidden]{display:none!important}
svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* app bar and tabs */
.bar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:8px;padding:calc(8px + var(--safe-top)) 12px 8px;background:rgba(255,246,236,.92);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}
.brand{display:flex;align-items:center;gap:8px;text-decoration:none;color:var(--ink);font:700 22px var(--d)}
.bar-title{font-size:20px;margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.icon-btn{display:inline-grid;place-items:center;width:42px;height:42px;border-radius:16px;border:0;background:var(--surface);color:var(--ink);box-shadow:0 3px 0 var(--lilac-edge),0 6px 12px rgba(110,84,190,.1);cursor:pointer}
.icon-btn:active{transform:translateY(2px);box-shadow:0 1px 0 var(--lilac-edge)}
.pill{display:inline-flex;align-items:center;gap:4px;padding:6px 12px;border-radius:16px;background:var(--primary-soft);color:var(--on-primary-soft);font:700 14px var(--d);text-decoration:none;box-shadow:0 3px 0 #bcccf5,inset 0 2px 0 rgba(255,255,255,.7)}
.net{margin:0 12px 6px;padding:8px 12px;border-radius:14px;background:var(--warn);color:var(--on-warn);font-size:14px;font-weight:700}
main{display:block;max-width:720px;margin:0 auto;padding:8px 16px calc(96px + var(--safe-bottom));outline:none}
.tabs{position:fixed;left:0;right:0;bottom:0;z-index:20;display:flex;justify-content:space-around;padding:8px 6px calc(8px + var(--safe-bottom));background:#fff;border-radius:26px 26px 0 0;box-shadow:0 -8px 24px rgba(110,84,190,.14)}
.tabs a{flex:1;display:grid;justify-items:center;gap:2px;padding:4px 0;color:var(--muted);text-decoration:none;font:700 12px var(--t)}
.tabs a svg{width:40px;height:30px;padding:3px 8px;border-radius:15px}
.tabs a.on{color:var(--ink)}
.tabs a.on svg{background:var(--yellow);color:var(--on-yellow);box-shadow:0 3px 0 var(--yellow-edge),inset 0 2px 0 rgba(255,255,255,.6)}

/* clay surfaces */
.clay,.card{background:var(--surface);border-radius:28px;box-shadow:var(--clay);padding:18px}
.card+.card{margin-top:14px}
.card.soft{background:var(--primary-soft)}.card.warm{background:#fff4d6}.card.mint{background:#e4f8ec}.card.rose{background:#ffe8f0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:10px 20px;border-radius:24px;border:0;background:#fff;color:var(--ink);font:700 16px var(--d);letter-spacing:.2px;text-decoration:none;cursor:pointer;box-shadow:0 5px 0 #e2d8f7,0 8px 14px rgba(110,84,190,.12);transition:transform .08s}
.btn:active{transform:translateY(3px);box-shadow:0 2px 0 #e2d8f7}
.btn.primary{background:var(--primary);color:#fff;box-shadow:0 5px 0 var(--primary-edge),0 10px 18px rgba(47,109,240,.3),inset 0 2px 0 rgba(255,255,255,.3)}
.btn.primary:active{box-shadow:0 2px 0 var(--primary-edge)}
.btn.yellow{background:var(--yellow);color:var(--on-yellow);box-shadow:0 5px 0 var(--yellow-edge),inset 0 2px 0 rgba(255,255,255,.6)}
.btn.green{background:var(--green);color:var(--on-green);box-shadow:0 5px 0 var(--green-edge),inset 0 2px 0 rgba(255,255,255,.6)}
.btn.small{min-height:38px;padding:6px 14px;font-size:14.5px;border-radius:19px}
.btn.wide{width:100%}
.btn.link{background:none;box-shadow:none;color:var(--muted);min-height:40px}
.btn:disabled{opacity:.55;cursor:default;transform:none}
.cost{display:inline-block;margin-left:4px;padding:1px 8px;border-radius:10px;background:rgba(255,255,255,.3);font-size:13px}
.btn:not(.primary) .cost{background:var(--primary-soft);color:var(--on-primary-soft)}

/* home */
.hero{text-align:center;padding:18px 8px 10px}
.hero img{width:104px;height:104px;filter:drop-shadow(0 10px 16px rgba(21,96,232,.25))}
.hero h1{font-size:34px;margin:6px 0 2px}
.tagline{font:600 18px var(--d);color:var(--muted);margin:0 0 12px}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:16px 0}
@media (min-width:560px){.grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.tile{display:grid;gap:6px;align-content:start;min-height:122px;padding:16px;border-radius:26px;text-decoration:none;color:var(--ink);background:#fff;box-shadow:var(--clay)}
.tile:active{transform:scale(.98)}
.tile .tone{display:grid;place-items:center;width:44px;height:44px;border-radius:16px;box-shadow:inset -4px -5px 8px rgba(0,0,0,.12),inset 4px 4px 8px rgba(255,255,255,.45),0 6px 12px rgba(110,84,190,.18)}
.tile b{font:600 17px var(--d)}.tile span{font-size:13.5px;color:var(--muted);line-height:1.35}
.t-blue{background:#cfe0ff;color:#1b3f99}.t-yellow{background:var(--yellow);color:var(--on-yellow)}.t-green{background:var(--green);color:var(--on-green)}.t-pink{background:var(--pink);color:#6b1235}.t-lilac{background:#e4d9ff;color:#3d2a85}.t-orange{background:#ffc9a3;color:#6b3000}

/* forms */
label.field{display:grid;gap:6px;font-weight:700;font-size:14.5px}
input[type=text],input[type=email],input[type=password],input[type=tel],input[type=search],input[type=number],input[type=date],select,textarea{width:100%;min-height:48px;padding:12px 16px;border-radius:20px;border:2px solid var(--outline-soft);background:#fff;color:var(--ink);font:500 16px var(--t);outline:none;-webkit-appearance:none;appearance:none}
textarea{min-height:110px;resize:vertical;line-height:1.45}
input:focus,select:focus,textarea:focus{border-color:var(--primary)}
select{background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 22px) 21px,calc(100% - 16px) 21px;background-size:6px 6px;background-repeat:no-repeat;padding-right:40px}
.check{display:flex;gap:10px;align-items:flex-start;font-size:15px;cursor:pointer}
.check input{width:22px;height:22px;margin:1px 0 0;accent-color:var(--primary);flex:none}
.switch{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0;font-weight:700}
.switch input{appearance:none;-webkit-appearance:none;width:52px;height:30px;border-radius:15px;background:var(--outline);position:relative;flex:none;cursor:pointer;transition:background .15s}
.switch input::after{content:"";position:absolute;top:3px;left:3px;width:24px;height:24px;border-radius:50%;background:#fff;box-shadow:0 2px 4px rgba(0,0,0,.15);transition:left .15s}
.switch input:checked{background:var(--green-edge)}.switch input:checked::after{left:25px}
.seg{display:flex;gap:4px;padding:4px;border-radius:24px;background:#fff;box-shadow:var(--clay);overflow-x:auto}
.seg button{flex:1;min-height:40px;padding:6px 12px;border:0;border-radius:20px;background:none;color:var(--muted);font:600 15px var(--d);white-space:nowrap;cursor:pointer}
.seg button.on{background:var(--green);color:var(--on-green);box-shadow:0 3px 0 var(--green-edge),inset 0 2px 0 rgba(255,255,255,.6)}
.chips{display:flex;gap:8px;overflow-x:auto;padding:4px 2px 10px;scrollbar-width:none}
.chips::-webkit-scrollbar{display:none}
.chip{flex:none;padding:8px 14px;border:0;border-radius:16px;background:#fff;color:#5a4f86;font:700 14px var(--t);box-shadow:0 3px 0 var(--lilac-edge),0 6px 12px rgba(110,84,190,.1);cursor:pointer;white-space:nowrap}
.chip.on{background:var(--yellow);color:var(--on-yellow);box-shadow:0 3px 0 var(--yellow-edge),inset 0 2px 0 rgba(255,255,255,.6)}
.file-drop{display:grid;place-items:center;gap:6px;padding:22px;border:2px dashed var(--outline);border-radius:24px;background:rgba(255,255,255,.6);text-align:center;cursor:pointer;font-weight:700}
.file-drop input{display:none}
.preview{max-height:260px;border-radius:20px;display:block;margin:0 auto;box-shadow:var(--clay)}

/* notes, errors, progress */
.note{padding:12px 14px;border-radius:18px;background:var(--primary-soft);color:var(--on-primary-soft);font-size:14.5px}
.note.warn{background:var(--warn);color:var(--on-warn)}.note.bad{background:#ffe1e1;color:#7a1f1f}.note.ok{background:#dcf6e7;color:var(--on-green)}
.rules{padding:12px 14px;border-radius:18px;background:#fff4d6;color:var(--on-warn);font-size:14.5px}
.progress{height:8px;border-radius:4px;background:var(--outline-soft);overflow:hidden}
.progress i{display:block;height:100%;width:30%;border-radius:4px;background:var(--primary);animation:slide 1.2s ease-in-out infinite}
.progress.det i{animation:none;transition:width .3s}
@keyframes slide{0%{margin-left:-30%}100%{margin-left:100%}}
.spinner{width:20px;height:20px;border-radius:50%;border:3px solid rgba(255,255,255,.4);border-top-color:currentColor;animation:spin .8s linear infinite;display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}

/* chat */
.chat{display:grid;gap:12px;padding-bottom:12px}
.msg{max-width:92%;padding:12px 16px;border-radius:22px;box-shadow:var(--clay);background:#fff;overflow-wrap:anywhere}
.msg.user{justify-self:end;background:var(--primary);color:#fff;border-bottom-right-radius:8px;box-shadow:0 4px 0 var(--primary-edge)}
.msg.bot{justify-self:start;border-bottom-left-radius:8px}
.msg.status{justify-self:center;background:none;box-shadow:none;color:var(--muted);font-size:14px;padding:0}
.sources{margin-top:8px;font-size:13.5px}.sources a{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.composer{position:sticky;bottom:calc(84px + var(--safe-bottom));display:grid;gap:8px;padding:12px;border-radius:26px;background:rgba(255,255,255,.96);box-shadow:var(--clay)}
.composer textarea{min-height:52px;max-height:160px}

/* markdown */
.md>:first-child{margin-top:0}.md>:last-child{margin-bottom:0}
.md h1,.md h2,.md h3,.md h4{margin:.8em 0 .4em}.md h1{font-size:21px}.md h2{font-size:18px}.md h3,.md h4{font-size:16px}
.md ul,.md ol{padding-left:22px;margin:0 0 .8em}.md li{margin:.2em 0}
.md blockquote{margin:0 0 .8em;padding:4px 12px;border-left:4px solid var(--outline);color:var(--muted)}
.md code{padding:1px 6px;border-radius:6px;background:var(--outline-soft);font-size:.92em}
.md hr{border:0;border-top:2px solid var(--outline-soft);margin:12px 0}

/* lists */
.list{display:grid;gap:12px}
.item{display:grid;gap:4px;padding:14px 16px;border-radius:22px;background:#fff;box-shadow:var(--clay);text-decoration:none;color:var(--ink)}
.item b{font:600 16px var(--d)}.item .meta{font-size:13px;color:var(--muted)}
.item .actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:6px}
.fit{display:inline-block;padding:2px 10px;border-radius:10px;font:700 12.5px var(--t);text-transform:capitalize}
.fit.strong{background:var(--green);color:var(--on-green)}.fit.good{background:var(--primary-soft);color:var(--on-primary-soft)}.fit.possible{background:var(--warn);color:var(--on-warn)}
.answer{padding:12px 14px;border-radius:18px;background:#f6f2ff}
.answer+.answer{margin-top:8px}
.answer .num{font:700 15px var(--d);color:var(--primary)}
.page-head{font:600 15px var(--d);color:var(--muted);margin:14px 0 8px}
.packs{display:grid;gap:12px}
.pack{display:flex;align-items:center;gap:12px;padding:14px 16px;border-radius:22px;background:#fff;box-shadow:var(--clay);border:3px solid transparent;cursor:pointer;text-align:left;font:inherit;color:inherit;width:100%}
.pack.on{border-color:var(--primary)}
.pack b{font:700 20px var(--d)}.pack .price{margin-left:auto;font:700 18px var(--d);color:var(--primary)}
.kv{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;font-size:14.5px}.kv dt{color:var(--muted)}.kv dd{margin:0;font-weight:700;overflow-wrap:anywhere}
.steps{margin:0;padding-left:0;list-style:none;counter-reset:s;display:grid;gap:12px}
.steps li{counter-increment:s;display:flex;gap:12px;align-items:flex-start}
.steps li::before{content:counter(s);flex:none;display:grid;place-items:center;width:30px;height:30px;border-radius:12px;background:var(--yellow);color:var(--on-yellow);font:700 15px var(--d);box-shadow:0 3px 0 var(--yellow-edge)}
.share-ico{display:inline-block;vertical-align:-5px;width:22px;height:22px}
.block{display:grid;gap:6px;padding:12px;border-radius:18px;background:#fff;box-shadow:var(--clay)}
.block.atlas{background:#f6f2ff}
.tag{display:inline-block;padding:1px 8px;border-radius:9px;background:var(--outline-soft);color:var(--muted);font-size:12px;font-weight:700}

/* sheet and toast */
.sheet-wrap{position:fixed;inset:0;z-index:40;display:flex;align-items:flex-end;justify-content:center;background:rgba(46,39,82,.35)}
.sheet{width:100%;max-width:560px;max-height:92vh;overflow:auto;border-radius:28px 28px 0 0;padding:20px 20px calc(20px + var(--safe-bottom));animation:up .2s ease-out}
.sheet::before{content:"";display:block;width:44px;height:5px;border-radius:3px;background:var(--outline);margin:-8px auto 14px}
@keyframes up{from{transform:translateY(40px);opacity:.4}}
.toast{position:fixed;left:50%;bottom:calc(96px + var(--safe-bottom));z-index:50;transform:translateX(-50%);max-width:calc(100% - 32px);padding:12px 18px;border-radius:18px;background:var(--ink);color:#fff;font-weight:700;font-size:14.5px;box-shadow:0 10px 24px rgba(0,0,0,.2)}
.google{background:#fff}
.google svg{width:20px;height:20px;stroke:none}
.divider{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13px}.divider::before,.divider::after{content:"";flex:1;height:2px;background:var(--outline-soft)}

/* offline page */
.offline-page{display:grid;place-items:center;min-height:100vh;padding:16px}
.offline-card{max-width:420px;text-align:center}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}