/* Layout: an illustrated Istanbul travel notebook. Ink on paper, one look in every theme. */
:root{
  --bg:#FBF5E6; --panel:#FFFDF6; --panel-2:#F2E8D0; --ink:#2B2320; --muted:#6B5D52; --line:#2B2320;
  --cobalt:#17757C; --cobalt-fg:#FFFDF6; --teal:#2C8E93; --tomato:#C94F36; --tomato-soft:#F9E0D6; --saffron:#E9B044; --good:#3F7F4A; --good-soft:#DFEDD6;
  --nazar:#2456A6; --stage:#FFF8E6; --locked:#CDBFA4;
  --display:"Patrick Hand","Comic Sans MS","Segoe Print",cursive;
  --note:"Caveat","Segoe Print",cursive;
  --body:"Atkinson Hyperlegible","Segoe UI",system-ui,sans-serif;
  color-scheme:light;
}
*{box-sizing:border-box}
html,body{height:100%}
body{background:var(--bg);color:var(--ink);font:400 16px/1.5 var(--body);overflow-x:hidden}
h1,h2,h3{font-family:var(--display);font-weight:400;line-height:1.15;margin:0;text-wrap:balance}
h1{font-size:clamp(1.7rem,4vw,2.3rem)} h2{font-size:1.35rem} h3{font-size:1.08rem}
p{margin:0}
button{font:inherit;color:inherit;cursor:pointer}
:focus-visible{outline:3px solid var(--saffron);outline-offset:2px}
.muted{color:var(--muted)} .small{font-size:.875rem}
.tr{font-weight:700}

.app{display:grid;grid-template-columns:208px minmax(0,1fr);min-height:100%}
.rail{position:sticky;top:0;height:100vh;display:flex;flex-direction:column;gap:4px;padding:20px 12px;background:var(--panel);border-right:2px solid var(--line)}
.brand{font:400 1.4rem var(--display);color:var(--cobalt);padding:0 10px 14px}
.tab{display:flex;align-items:center;gap:12px;padding:10px;border:2px solid transparent;border-radius:12px;background:none;text-align:left;font-weight:700}
.tab svg{width:24px;height:24px;flex:none}
.tab:hover{background:var(--panel-2)}
.tab[aria-current="page"]{background:var(--cobalt);color:var(--cobalt-fg)}
.main{min-width:0;padding-block:20px 48px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.wrap{max-width:1040px;margin:0 auto;display:grid;gap:20px}
.notice{font-size:.85rem;color:var(--muted);border:1.5px dashed var(--line);border-radius:10px;padding:6px 12px;display:flex;flex-wrap:wrap;gap:4px 12px;justify-content:space-between;align-items:center}
.link{background:none;border:0;padding:0;text-decoration:underline;color:var(--cobalt);font-weight:700}
.two{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:24px;align-items:start}
.side{display:grid;gap:16px;position:sticky;top:20px}
.card{background:var(--panel);border:2px solid var(--line);border-radius:16px;padding:16px;display:grid;gap:10px;min-width:0}

.btn{border:2.5px solid var(--line);border-radius:12px;padding:10px 18px;background:var(--panel);font-weight:700;box-shadow:0 3px 0 var(--line);transition:transform .08s,box-shadow .08s}
.btn:active{transform:translateY(3px);box-shadow:none}
.btn.primary{background:var(--cobalt);color:var(--cobalt-fg)}
.btn:disabled{opacity:.5;cursor:not-allowed;box-shadow:none}
.chip{border:2px solid var(--line);border-radius:999px;background:var(--panel);padding:5px 12px;font-size:.875rem;font-weight:700}
.chip[aria-pressed="true"]{background:var(--saffron);color:#2B2320}
.pill{display:inline-block;font-size:.75rem;font-weight:700;letter-spacing:.03em;border-radius:999px;padding:2px 9px;background:var(--panel-2)}
.pill.on{background:var(--good-soft);color:var(--good)}

/* stats */
.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.stat{background:var(--panel);border:2px solid var(--line);border-radius:14px;padding:8px 12px;min-width:0}
.stat b{display:block;font:400 1.45rem var(--display);font-variant-numeric:tabular-nums}
.stat span{font-size:.78rem;color:var(--muted)}
.meter{height:10px;border-radius:99px;background:var(--panel-2);border:1.5px solid var(--line);overflow:hidden}
.meter i{display:block;height:100%;background:var(--saffron);transition:width .4s}

/* mascot */
.stage{background:var(--stage);border:2px solid var(--line);border-radius:16px;display:flex;align-items:flex-end;justify-content:center;overflow:hidden;position:relative;background-image:linear-gradient(transparent 82%,#8FB8BC 82%)}
.cat{display:block;width:100%;height:auto;overflow:visible}
.say{position:relative;background:var(--panel);border:2px solid var(--line);border-radius:14px;padding:10px 12px;font-size:.95rem}
.cat-idle .tail{transform-origin:150px 205px;animation:wag 2.6s ease-in-out infinite}
.cat-idle .lid,.cat-think .lid{animation:none}
.cat-happy .all{transform-origin:110px 250px;animation:jump .7s cubic-bezier(.3,.7,.3,1) 2}

.cat-ouch .stars{transform-origin:110px 24px;animation:orbit 1.4s linear infinite}
.cat-shock .all{animation:shake .12s linear 7}
.cat-sleep .all{transform-origin:110px 250px;animation:breathe 3.4s ease-in-out infinite}
.cat-sleep .zz{animation:zz 3s ease-in-out infinite}
@keyframes wag{50%{transform:rotate(10deg)}}
@keyframes jump{0%,100%{transform:none}35%{transform:translateY(-26px) scale(.96,1.05)}70%{transform:scale(1.08,.93)}}
@keyframes squash{0%,48%{transform:none}58%{transform:scale(1.22,.68)}75%{transform:scale(.92,1.08)}100%{transform:none}}
@keyframes orbit{to{transform:rotate(360deg)}}
@keyframes shake{25%{transform:translateX(-5px)}75%{transform:translateX(5px)}}
@keyframes breathe{50%{transform:scale(1.02,.98)}}
@keyframes zz{50%{transform:translateY(-8px);opacity:.6}}

/* route */
.level-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;flex-wrap:wrap}
.unit{background:var(--cobalt);color:var(--cobalt-fg);border-radius:14px;padding:12px 16px;border:2px solid var(--line)}
.unit small{display:block;font-weight:700;opacity:.85}
.route{position:relative;display:grid;gap:12px;padding:14px 0 14px 8px}
.route::before{content:"";position:absolute;left:32px;top:0;bottom:0;width:8px;background:repeating-linear-gradient(var(--locked) 0 14px,transparent 14px 20px);border-radius:4px}
.stop{position:relative;display:grid;grid-template-columns:56px minmax(0,1fr);gap:14px;align-items:center;background:none;border:0;padding:0;text-align:left;width:100%}
.dot{width:56px;height:56px;border-radius:50%;background:var(--panel);border:3px solid var(--line);display:grid;place-items:center;font:400 1.1rem var(--display);z-index:1;color:var(--muted)}
.dot svg{width:28px;height:28px}
.stop .lbl{display:grid;gap:1px;min-width:0}
.stop .lbl b{font-size:1.02rem}
.stop.now .dot{background:var(--saffron);color:#2B2320;box-shadow:0 0 0 5px color-mix(in srgb,var(--saffron) 40%,transparent);animation:pulse 2s infinite}
.stop.done .dot{background:var(--good);color:var(--bg)}
.stop.talk .dot{background:var(--teal);color:var(--bg)}
.stop.exam .dot{background:var(--tomato);color:var(--bg);border-radius:14px}
.stop[disabled]{cursor:default;opacity:.72}
.stop:not([disabled]):hover .lbl b{text-decoration:underline}
@keyframes pulse{50%{box-shadow:0 0 0 9px color-mix(in srgb,var(--saffron) 12%,transparent)}}
.ladder{display:grid;grid-template-columns:repeat(auto-fit,minmax(100px,1fr));gap:8px}
.rung{border:2px solid var(--line);border-radius:12px;padding:8px 10px;background:var(--panel);min-width:0}
.rung b{font:400 1.1rem var(--display);display:block}
.rung.here{background:var(--saffron);color:#2B2320}
.rung.here .muted{color:#2B2320}

/* lesson overlay */
.lesson{position:fixed;inset:0;z-index:30;background:var(--bg);display:grid;grid-template-rows:auto minmax(0,1fr) auto;padding-top:env(safe-area-inset-top,0px)}
.lhead{display:flex;align-items:center;gap:12px;padding:12px max(16px,env(safe-area-inset-right,0px)) 12px max(16px,env(safe-area-inset-left,0px));max-width:760px;width:100%;margin:0 auto}
.lhead .meter{flex:1;height:14px}.lhead .meter i{background:var(--good)}
.x{width:40px;height:40px;border-radius:10px;border:2px solid var(--line);background:var(--panel);font-weight:700;flex:none}
.lbody{overflow:auto;padding:8px max(16px,env(safe-area-inset-right,0px)) 20px max(16px,env(safe-area-inset-left,0px))}
.linner{max-width:640px;margin:0 auto;display:grid;gap:16px}
.lfoot{border-top:2px solid var(--line);background:var(--panel);padding:12px max(16px,env(safe-area-inset-right,0px)) calc(12px + env(safe-area-inset-bottom,0px)) max(16px,env(safe-area-inset-left,0px))}
.lfoot.ok{background:var(--good-soft)} .lfoot.no{background:var(--tomato-soft)}
.lfoot-in{max-width:640px;margin:0 auto;display:grid;grid-template-columns:84px minmax(0,1fr);gap:12px;align-items:center}
.lfoot-in.plain{grid-template-columns:minmax(0,1fr)}
.lfoot-in .act{grid-column:1/-1;display:flex;justify-content:flex-end;gap:10px;flex-wrap:wrap}
.lfoot .stage{height:92px;border-radius:12px}
.lfoot .stage .cat{height:100%;width:auto}
.opt{width:100%;text-align:left;border:2.5px solid var(--line);border-radius:12px;background:var(--panel);padding:12px 14px;font-weight:700;box-shadow:0 3px 0 var(--line)}
.opt:hover:not(:disabled){background:var(--panel-2)}
.opt.sel{background:var(--cobalt);color:var(--cobalt-fg)}
.opt.right{background:var(--good);color:var(--bg)}
.opt.wrong{background:var(--tomato);color:var(--bg)}
.opts{display:grid;gap:10px}
.opts.grid2{grid-template-columns:repeat(2,minmax(0,1fr))}
.play{display:inline-flex;align-items:center;gap:8px;border:2.5px solid var(--line);border-radius:12px;background:var(--saffron);color:#2B2320;font-weight:700;padding:8px 14px;box-shadow:0 3px 0 var(--line)}
.play.big{padding:14px 22px;font-size:1.1rem}
.play.mini{padding:2px 8px;box-shadow:none;border-width:2px}
.play svg{width:18px;height:18px}
.rows{display:grid;gap:8px}
.row{display:grid;grid-template-columns:auto minmax(0,1fr);gap:12px;align-items:center;background:var(--panel);border:2px solid var(--line);border-radius:12px;padding:8px 12px}
.tip{background:var(--panel-2);border-radius:12px;padding:10px 14px;font-size:.95rem}
.tiles,.answer{display:flex;flex-wrap:wrap;gap:8px;min-height:50px}
.answer{border-bottom:2.5px solid var(--line);padding-bottom:8px}
.tile{border:2.5px solid var(--line);border-radius:10px;background:var(--panel);padding:7px 14px;font-weight:700;box-shadow:0 2px 0 var(--line)}
.tile:disabled{opacity:.25;box-shadow:none}
.input{width:100%;border:2.5px solid var(--line);border-radius:12px;background:var(--panel);color:var(--ink);padding:12px 14px;font:700 1.1rem var(--body)}
.keys{display:flex;flex-wrap:wrap;gap:6px}
.keys button{width:42px;height:42px;border:2px solid var(--line);border-radius:10px;background:var(--panel);font-weight:700}
.rate{display:flex;flex-wrap:wrap;gap:8px}

/* review */
.flash{min-height:200px;display:grid;place-items:center;text-align:center;gap:10px;border:2.5px solid var(--line);border-radius:18px;background:var(--panel);padding:24px;box-shadow:0 5px 0 var(--line)}
.flash .big{font:400 2rem var(--display)}
.srs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
.srs button{padding:8px 4px}.srs small{display:block;font-weight:400;color:var(--muted)}

.chat{display:grid;grid-template-rows:minmax(0,1fr) auto;gap:10px;height:min(66vh,600px);min-height:360px}
.log{overflow:auto;display:flex;flex-direction:column;gap:10px;padding:4px}
.msg{max-width:88%;border:2px solid var(--line);border-radius:14px;padding:9px 13px;white-space:pre-wrap;overflow-wrap:anywhere}
.msg.me{align-self:flex-end;background:var(--cobalt);color:var(--cobalt-fg)}
.msg.cat-msg{align-self:flex-start;background:var(--panel)}
.msg .ex{display:block;margin-top:6px;font-size:.75rem;color:var(--muted)}
.composer{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.session{display:grid;grid-template-columns:auto minmax(0,1fr);gap:10px;align-items:center;padding:10px 0;border-top:1.5px solid var(--panel-2)}

/* rewards */
.grid-3{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:12px}
.item{border:2px solid var(--line);border-radius:14px;padding:10px;background:var(--panel);display:grid;justify-items:center;text-align:center;gap:4px;min-width:0}
.item svg{width:56px;height:56px}
.item.off svg{filter:grayscale(1);opacity:.3}
.item.off{color:var(--muted)}
.cal{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:5px;max-width:320px}
.cal i{aspect-ratio:1;border-radius:7px;background:var(--panel-2);display:grid;place-items:center;font-size:.7rem;font-style:normal;font-weight:700}
.cal i.y{background:var(--saffron);color:#2B2320}.cal i.p{background:var(--teal);color:var(--bg)}
.badges{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:10px}
.badge{display:grid;gap:3px;border:2px solid var(--line);border-radius:14px;padding:10px 12px;background:var(--panel)}
.badge .top{display:flex;justify-content:space-between;gap:8px;align-items:flex-start}

/* plan */
.tablewrap{overflow-x:auto;border:2px solid var(--line);border-radius:14px;background:var(--panel)}
table{border-collapse:collapse;width:100%;min-width:760px;font-size:.92rem}
th,td{text-align:left;vertical-align:top;padding:10px 12px;border-bottom:1.5px solid var(--panel-2)}
th{font-size:.78rem;letter-spacing:.04em;text-transform:uppercase;color:var(--muted)}
td:first-child{font:400 1.15rem var(--display);white-space:nowrap}
td.num{font-variant-numeric:tabular-nums;white-space:nowrap}
tr:last-child td{border-bottom:0}
.gridm{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}
.cats{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px}
.cats .stage{height:260px}.cats .stage .cat{height:100%;width:auto}
.card.picked{border-width:4px;border-color:var(--saffron)}
.chips.moods{justify-content:flex-start}
.hero{display:grid;grid-template-columns:96px minmax(0,1fr);gap:12px;align-items:center}
.hero .stage{height:112px}.hero .stage .cat{height:100%;width:auto}
.onlym{display:none}

@media (max-width:980px){.two{grid-template-columns:minmax(0,1fr)}.side{position:static;order:-1}.side .deskonly{display:none}.onlym{display:grid}}
@media (max-width:760px){
  .app{display:block;padding-bottom:calc(68px + env(safe-area-inset-bottom,0px))}
  .brand{display:none}
  .rail{position:fixed;z-index:20;left:0;right:0;bottom:0;top:auto;height:auto;flex-direction:row;gap:0;justify-content:space-between;border-right:0;border-top:2px solid var(--line);padding:4px max(4px,env(safe-area-inset-right,0px)) calc(4px + env(safe-area-inset-bottom,0px)) max(4px,env(safe-area-inset-left,0px))}
  .tab{flex:1 1 0;min-width:0;flex-direction:column;gap:1px;padding:6px 0;font-size:.68rem;text-align:center;border-radius:10px}
  .tab svg{width:22px;height:22px}
  .opts.grid2{grid-template-columns:minmax(0,1fr)}
}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}

/* ---------- notebook skin ---------- */
h1{font-size:clamp(2rem,5vw,2.7rem)} h2{font-size:1.6rem} h3{font-size:1.28rem}
.rail,.card,.stat,.rung,.item,.badge,.tablewrap,.flash,.unit,.stage,.say{border-radius:18px 14px 20px 13px/14px 20px 13px 18px}
.btn,.opt,.tile,.play{border-radius:13px 11px 14px 10px/11px 14px 10px 13px}
.brand{font-size:1.75rem}
.stat b{font-size:1.75rem}
.rail{border-radius:0}
.stage{background:var(--stage);background-image:none}
.unit{background:var(--panel);color:var(--ink);display:grid;grid-template-columns:52px minmax(0,1fr);gap:12px;align-items:center}
.unit svg{width:52px;height:52px}
.unit small{font:600 1.2rem var(--note);color:var(--tomato);opacity:1}
.route::before{background:repeating-linear-gradient(var(--line) 0 9px,transparent 9px 17px);width:3px;left:35px}
.link{color:var(--nazar)}
.tab[aria-current="page"]{background:var(--saffron);color:var(--ink);border-color:var(--line)}
.btn.primary{background:var(--cobalt)}
.skyline{display:block;width:100%;height:auto;color:var(--ink)}
.title-note{font:600 1.35rem var(--note);color:var(--tomato)}
.flash .big{font-size:2.5rem}
.rung b{font-size:1.35rem}
td:first-child{font-size:1.35rem}
.cat-idle .tail{transform-origin:176px 214px;animation:wag 3s ease-in-out infinite}
.cat-idle .eyes{transform-origin:120px 98px;animation:blink 4.5s infinite}
.cat-happy .all,.cat-ouch .all,.cat-sleep .all{transform-origin:120px 245px}
.cat-ouch .stars{transform-origin:120px 26px}
.cat-happy .hearts{animation:zz 1.6s ease-in-out infinite}
@keyframes blink{0%,94%,100%{transform:none}97%{transform:scaleY(.1)}}
.voices{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:16px}
.voice.picked{border-color:var(--cobalt);border-width:4px}
.voice .chips .play{font-size:.95rem;padding:6px 10px}
.facts{display:grid;grid-template-columns:auto minmax(0,1fr);gap:2px 10px;font-size:.875rem;margin:0}
.facts dt{color:var(--muted)}.facts dd{margin:0}

/* ---------- app ---------- */
.stop.lock{opacity:.6;cursor:default}
.field{display:grid;gap:6px}
.field input{width:100%;border:2.5px solid var(--line);border-radius:12px;background:var(--panel);color:var(--ink);padding:10px 12px;font:400 1rem var(--body)}
.row-btns{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.status{font-size:.875rem;color:var(--muted)}
.status.ok{color:var(--good)}.status.bad{color:var(--tomato)}
.rec{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.btn.danger{background:var(--tomato);color:var(--cobalt-fg)}
.rung.off{opacity:.55}
ol.steps{margin:0;padding-left:20px;display:grid;gap:4px}