:root{--fg:#1b1f24;--mut:#59606a;--bg:#fff;--line:#dfe3e8;--acc:#1457e6;--acc-fg:#fff;--soft:#f4f6f9;--ok:#157347;--warn:#b42318;--hi:#c2410c;--sh:0 1px 2px rgba(16,24,40,.06),0 1px 3px rgba(16,24,40,.08)}
@media(prefers-color-scheme:dark){:root{--fg:#eceff3;--mut:#a3abb6;--bg:#14161a;--line:#2e333b;--acc:#7aa7ff;--acc-fg:#0b1220;--soft:#1c2026;--hi:#fb923c;--ok:#5fd08f;--warn:#ff8a80;--sh:none}}
*{box-sizing:border-box}
body{font:16px/1.6 system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;margin:0;color:var(--fg);background:var(--bg);-webkit-text-size-adjust:100%}
a{color:var(--acc)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--acc);outline-offset:2px}
.sf{border-top:1px solid var(--line);margin-top:48px;color:var(--mut);font-size:14px}
.sf a{margin-right:16px;display:inline-block;padding:8px 0}
body>h1,body>h2,body>h3,body>p,body>label,body>div,body>ul,body>ol,body>input,body>select,body>table,body>small,body>section,body>details{max-width:760px;margin-left:auto;margin-right:auto;padding-left:16px;padding-right:16px}
h1{font-size:24px;line-height:1.25;margin:20px auto 8px;font-weight:700}
h2{font-size:20px;line-height:1.3;margin:32px auto 8px}
h3{font-size:16px}
@media(min-width:640px){h1{font-size:28px}}
p,ul,ol{margin-top:8px;margin-bottom:8px}
label{display:block;margin:16px auto 4px;font-weight:600;font-size:14px}
input,select{font:inherit;min-height:44px;max-width:100%;padding:8px 12px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--fg)}
input[type=file]{width:100%;padding:10px;background:var(--soft);border:2px dashed var(--line)}
input[type=range]{width:100%;padding:0}
button,.btn{font:inherit;font-weight:600;min-height:44px;padding:8px 20px;border-radius:8px;border:1px solid var(--line);background:var(--soft);color:var(--fg);cursor:pointer;margin:8px 8px 0 0;text-decoration:none;display:inline-flex;align-items:center;justify-content:center}
button#go,button.primary,.btn.primary{background:var(--acc);color:var(--acc-fg);border-color:var(--acc)}
button:disabled{opacity:.5;cursor:not-allowed}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:flex-end}
.row>div{flex:1 1 140px}
.row input,.row select{width:100%}
#out,.result{margin-top:16px;padding:16px;border:1px solid var(--line);border-radius:8px;background:var(--soft);box-shadow:var(--sh)}
img,canvas{max-width:100%;height:auto}
table{border-collapse:collapse;width:100%}td,th{border:1px solid var(--line);padding:8px 12px;text-align:left}
details{border-top:1px solid var(--line);padding:8px 16px}summary{cursor:pointer;font-weight:600;padding:8px 0}
.cards{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));padding:0 16px;max-width:760px;margin:0 auto}
.card{display:block;border:1px solid var(--line);border-radius:8px;padding:16px;background:var(--soft);text-decoration:none;color:var(--fg);box-shadow:var(--sh)}
.card:hover{border-color:var(--acc)}
.card strong{display:block;color:var(--acc);margin-bottom:4px}.card span{font-size:14px;color:var(--mut)}
.note{background:var(--soft);border-left:4px solid var(--acc);padding:12px 16px;margin:16px auto;border-radius:0 8px 8px 0}
.warn{color:var(--warn)}.ok{color:var(--ok)}small{color:var(--mut)}
.stage{position:relative;margin:12px auto 0;touch-action:none;line-height:0;border-radius:8px;overflow:hidden;background:var(--soft)}
.stage canvas{display:block;width:100%;cursor:grab}
body>ul,body>ol{padding-left:40px}
#out:empty{display:none}
body>.box,body>.warnbox,body>.note{max-width:728px;margin-left:auto;margin-right:auto}
@media(max-width:775px){body>.box,body>.warnbox,body>.note{margin-left:16px;margin-right:16px}}
.note{border-radius:8px}
body>input,body>select,body>button,body>.btn{margin-left:max(16px,calc((100% - 728px)/2));padding-left:12px;padding-right:12px;max-width:calc(100% - 32px)}
body>button,body>.btn{padding-left:20px;padding-right:20px}
body>input[type=file]{width:calc(100% - 32px)}
body>.row{max-width:728px;margin-left:auto;margin-right:auto;padding:0 16px}body>.row button{margin-top:8px}

/* ---- information architecture chrome ---- */
.vh{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.sf,.crumbs{max-width:760px;margin:0 auto;padding:12px 16px}
body.wide .sf,body.wide .crumbs{max-width:960px}
.sh{border-bottom:1px solid var(--line);position:relative;background:var(--bg)}
.shin{display:flex;flex-wrap:wrap;align-items:center;gap:4px 12px;max-width:1120px;margin:0 auto;padding:6px 16px}
.sh .brand{font-weight:700;font-size:18px;color:var(--fg);text-decoration:none;padding:8px 0;margin-right:auto}
.lang{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.lang a{padding:10px 12px;font-size:13px;font-weight:650;color:var(--mut);text-decoration:none;min-height:44px;display:inline-flex;align-items:center}
.lang a[aria-current]{background:var(--acc);color:var(--acc-fg)}
.menu summary{list-style:none;cursor:pointer;min-height:44px;display:inline-flex;align-items:center;padding:0 14px;border:1px solid var(--line);border-radius:8px;font-weight:650;font-size:14px}
.menu summary::-webkit-details-marker{display:none}
.menu nav{position:absolute;left:0;right:0;background:var(--bg);border-bottom:1px solid var(--line);padding:4px 16px 12px;z-index:5;display:flex;flex-direction:column}
.menu nav a{padding:12px 0;min-height:44px;color:var(--fg);text-decoration:none;border-bottom:1px solid var(--line);font-weight:550}
.menu nav a[aria-current]{color:var(--acc);font-weight:700}
.sq{position:relative;flex:1 1 100%;order:5;margin:0 0 8px}
.sq input[type=search]{width:100%;min-height:44px;padding:8px 14px;border-radius:8px}
.sr{position:absolute;left:0;right:0;top:100%;margin:4px 0 0;padding:4px;list-style:none;background:var(--bg);border:1px solid var(--line);border-radius:8px;box-shadow:0 8px 24px rgba(16,24,40,.18);z-index:10;max-height:70vh;overflow:auto;text-align:left}
.sr a{display:block;padding:10px 12px;min-height:44px;text-decoration:none;color:var(--fg);font-weight:600;border-radius:6px}
.sr a:hover,.sr a:focus{background:var(--soft)}
.sr a span{display:block;font-weight:400;font-size:13px;color:var(--mut)}
.sr .none{padding:10px 12px;color:var(--mut);font-size:14px}
.tag{font-style:normal;font-size:11px;font-weight:700;color:var(--mut);border:1px solid var(--line);border-radius:4px;padding:0 4px;margin-left:6px;vertical-align:middle}
.crumbs{padding-top:12px;padding-bottom:0;font-size:14px;color:var(--mut)}
.crumbs a{color:var(--mut)}
.crumbs [aria-current]{color:var(--fg)}
.sf{border-top:1px solid var(--line);margin-top:48px;color:var(--mut);font-size:14px}
.sf a{margin-right:16px;display:inline-block;padding:10px 0;color:var(--mut)}
body.wide>h1,body.wide>h2,body.wide>h3,body.wide>p,body.wide>div,body.wide>ul,body.wide>ol,body.wide>nav,body.wide>section,body.wide>form,body.wide>label,body.wide>input{max-width:960px;margin-left:auto;margin-right:auto;padding-left:16px;padding-right:16px}
body.wide .cards{max-width:960px;grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
body.wide>input.flt{display:block;width:calc(100% - 32px);margin:12px auto}
.lead{font-size:18px;color:var(--mut)}
.hero{padding:24px 16px 8px}
.hero h1{margin:0 0 8px;font-size:28px}
@media(min-width:640px){.hero h1{font-size:36px}}
.hero .sq.big{display:flex;gap:8px;margin:16px 0 0;flex-wrap:wrap}
.sq.big input[type=search]{flex:1 1 240px;min-height:52px;font-size:17px}
.sq.big button{margin:0;min-height:52px}
.tasks{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));padding:0 16px;max-width:960px;margin:0 auto}
.task{border:1px solid var(--line);border-radius:8px;padding:16px;background:var(--soft);box-shadow:var(--sh);display:flex;flex-direction:column}
.task h3{margin:0 0 4px;font-size:18px}.task h3 a{color:var(--acc);text-decoration:none}
.task p{margin:0 0 8px;color:var(--mut);font-size:14px}
.task ul{list-style:none;padding:0;margin:0 0 8px}
.task li a{display:block;padding:10px 0;min-height:44px;color:var(--fg);border-top:1px solid var(--line);text-decoration:none}
.task li a:hover{color:var(--acc)}
.task .all{margin-top:auto;font-weight:650;padding:10px 0;text-decoration:none}
.tabs{display:flex;gap:8px;overflow-x:auto;padding-top:8px;padding-bottom:8px}
.tabs a{white-space:nowrap;padding:10px 14px;min-height:44px;border:1px solid var(--line);border-radius:8px;text-decoration:none;color:var(--fg);font-weight:600;font-size:14px;display:inline-flex;align-items:center}
.tabs a[aria-current]{background:var(--acc);color:var(--acc-fg);border-color:var(--acc)}
.flow{padding-left:40px}.flow li{padding:4px 0}
.trust{list-style:none;padding-left:16px;margin-top:32px}.trust li{padding:4px 0;color:var(--mut)}
.more{font-weight:650}
.maplist{list-style:none;padding-left:16px}.maplist li{padding:8px 0;border-bottom:1px solid var(--line)}.maplist span{color:var(--mut);font-size:14px}
.rel{max-width:760px;margin:40px auto 0;padding:0 16px}
.rel h2{font-size:18px;margin:24px 0 8px}
.rel .cards{padding:0;max-width:none;grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.card.next{border-color:var(--hi);border-width:2px}
.card.next strong{color:var(--hi)}
.card.next strong::before{content:"Next \2192  ";font-weight:700}
html[lang=tr] .card.next strong::before{content:"Sonraki \2192  "}
.card{min-height:44px}
input[type=file]{padding:28px 16px;border:2px dashed var(--acc);background:var(--soft);border-radius:12px;font-weight:600}
body>input[type=file]{width:min(728px,calc(100% - 32px))}
.sh .brand{font-size:17px}.lang a{padding:10px}
.menu summary{padding:0 12px}.shin{gap:4px 8px}
.menu:not([open]) nav{display:none}
button.sample{background:none;font-weight:500;font-size:.9rem;min-height:44px}
body>input[type=range]{width:min(728px,calc(100% - 32px))}
@media(min-width:776px){body>.row{padding:0}}
body>input[type=text]{width:min(728px,calc(100% - 32px))!important}

/* ---- header v2: one full-width row (brand | nav | search | lang) ---- */
.sh .brand{margin-right:auto;white-space:nowrap}
.menu nav{left:0;right:0;padding:4px 16px 12px;box-shadow:0 8px 16px rgba(16,24,40,.08)}
.sq{order:5}
@media(min-width:900px){
 .shin{display:flex;flex-wrap:nowrap;gap:0 20px;padding-top:0;padding-bottom:0;min-height:60px}
 .sh .brand{margin:0;font-size:18px}
 .menu{flex:1 1 auto;order:2}
 .menu summary{display:none}
 .menu nav{position:static;flex-direction:row;gap:0 4px;padding:0;border:0;box-shadow:none;background:none}
 .menu nav a{border:0;padding:0 14px;min-height:60px;display:inline-flex;align-items:center;font-size:15px;color:var(--mut);position:relative}
 .menu nav a:hover{color:var(--acc)}
 .menu nav a[aria-current]{color:var(--acc);box-shadow:inset 0 -3px var(--acc)}
 .sq{order:3;flex:0 1 240px;margin:0}
 .sq input[type=search]{min-height:40px;padding:6px 14px;border-radius:20px;background:var(--soft)}
 .sq .sr{left:auto;right:0;width:min(420px,90vw)}
 .lang{order:4}
 .menu:not([open]) nav{display:flex}
}
@media(max-width:899px){.shin{padding-top:6px;padding-bottom:6px}.sq{flex:1 1 100%;margin:0 0 6px}.lang{order:3}.menu{order:4}.sh .brand{order:1}}
.lang a{min-height:40px}
/* links: no default browser-blue underline look */
a{text-decoration-thickness:1px;text-underline-offset:3px}
.card,.task a,.tabs a,.sh a,.crumbs a,.sf a,.btn{text-decoration:none}
.crumbs a:hover,.sf a:hover{color:var(--acc);text-decoration:underline}
/* home: category cards 3 / 2 / 1 columns */
.tasks{grid-template-columns:1fr;max-width:960px}
@media(min-width:640px){.tasks{grid-template-columns:repeat(2,1fr)}}
@media(min-width:960px){.tasks{grid-template-columns:repeat(3,1fr);gap:16px}}
.task{padding:20px;border-radius:12px;transition:border-color .15s,box-shadow .15s}
.task:hover{border-color:var(--acc)}
.task h3{font-size:19px;margin:0 0 6px}
.task li a{display:flex;justify-content:space-between;align-items:center}
.task li a::after{content:"\203A";color:var(--mut)}
.task .all{padding:12px 0 0}
/* footer */
.sf{display:flex;flex-wrap:wrap;gap:0 20px;padding:24px 16px 32px}
.sf p{flex:1 1 100%;margin:0 0 8px}
.sf a{margin:0}
/* content max-width alignment */
.hero{padding-top:32px}
.hero .lead{max-width:640px}
.sh .menu{border:0;padding:0}
.sh .menu summary{padding:0 14px}

/* custom file picker (see site.js) */
.fi-h{position:absolute!important;width:1px!important;height:1px!important;min-height:0!important;padding:0!important;margin:0!important;border:0!important;opacity:0;overflow:hidden;clip:rect(0 0 0 0)}
.fpick{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:8px auto 0;padding:20px 16px;border:2px dashed var(--acc);background:var(--soft);border-radius:12px;font-weight:600;cursor:pointer}
body>.fpick{width:min(728px,calc(100% - 32px))}
.fpick .fbtn{background:var(--acc);color:var(--acc-fg);padding:10px 18px;border-radius:8px;min-height:44px;display:inline-flex;align-items:center}
.fpick .fst::before{content:'· ';opacity:.6}
.fpick .fst{font-weight:400;color:var(--mut,inherit);overflow-wrap:anywhere;min-width:0}
.fi-h:focus-visible+.fpick{outline:3px solid var(--hi,#1a5fd0);outline-offset:2px}
.skip{position:absolute;left:8px;top:-60px;z-index:100;background:var(--acc);color:var(--acc-fg);padding:10px 16px;border-radius:8px;font-weight:700;text-decoration:none}
.skip:focus{top:8px}
h1:focus{outline:none}

/* zh action mega menu */
.mega{position:relative}.mega summary{list-style:none;cursor:pointer;min-height:44px;display:flex;align-items:center;font-weight:650;padding:0 14px 0 0}
.mega summary::-webkit-details-marker{display:none}
.megap{display:grid;grid-template-columns:1fr;gap:8px 24px;padding:4px 0 8px}
.megap strong{display:block;padding:8px 0 2px;color:var(--mut);font-size:13px}
.menu nav .megap a{border:0;padding:6px 0;min-height:36px;font-size:14px}
@media(min-width:900px){.mega>summary{min-height:60px;padding:0 14px;font-size:15px;color:var(--acc)}
.megap{position:absolute;left:0;top:60px;width:min(860px,92vw);grid-template-columns:repeat(5,1fr);background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:14px 18px;box-shadow:0 12px 28px rgba(16,24,40,.14);z-index:20}
.menu nav .megap a{padding:6px 0;min-height:32px;display:block}}
.sh .menu .mega>summary{border:0;border-radius:0;padding:0 14px 0 0;display:flex}
.menu nav .megap a{display:block}
@media(min-width:900px){.sh .menu .mega>summary{padding:0 14px;box-shadow:none}}

/* home filter chips */
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 14px}
.chip{font:inherit;font-size:.95rem;padding:7px 14px;border-radius:999px;border:1px solid var(--line);background:transparent;color:inherit;cursor:pointer}
.chip[aria-pressed=true]{background:var(--acc);border-color:var(--acc);color:var(--acc-fg)}
.cards .card[hidden]{display:none}