/* Utilario — design system. No web fonts, no framework: fast by construction. */
:root{
  --ink:#111726; --ink-2:#3d4658; --ink-3:#6b7488; --ink-4:#98a0b3;
  --bg:#ffffff; --bg-soft:#f6f7fb; --bg-sunk:#eef0f7;
  --line:#e4e7f0; --line-strong:#d2d7e5;
  --brand:#2f5bea; --brand-ink:#1c3fc0; --brand-soft:#eaf0ff;
  --accent:#ff9a1f; --accent-soft:#fff3e2;
  --ok:#0f9d63; --ok-soft:#e6f7f0; --warn:#b4501a; --warn-soft:#fdefe6;
  --radius:14px; --radius-lg:20px; --radius-sm:10px;
  --shadow:0 1px 2px rgba(17,23,38,.05), 0 8px 24px -12px rgba(17,23,38,.14);
  --shadow-lg:0 2px 4px rgba(17,23,38,.05), 0 18px 44px -18px rgba(17,23,38,.22);
  --maxw:1140px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
@media (prefers-color-scheme: dark){
  :root{
    --ink:#eef1f8; --ink-2:#c3c9d8; --ink-3:#98a0b3; --ink-4:#7b8398;
    --bg:#0e1220; --bg-soft:#151a2b; --bg-sunk:#1c2236;
    --line:#252c42; --line-strong:#333c56;
    --brand:#7d9bff; --brand-ink:#a9bcff; --brand-soft:#1a2245;
    --accent:#ffb257; --accent-soft:#332413;
    --ok:#43d39e; --ok-soft:#12301f; --warn:#ffa375; --warn-soft:#331e12;
    --shadow:0 1px 2px rgba(0,0,0,.4), 0 8px 24px -12px rgba(0,0,0,.6);
    --shadow-lg:0 2px 4px rgba(0,0,0,.4), 0 18px 44px -18px rgba(0,0,0,.7);
  }
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);
  font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden;
  display:flex;flex-direction:column;min-height:100vh}
main{flex:1 0 auto}
img,svg{max-width:100%;height:auto}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{margin:0 0 .5em;line-height:1.2;letter-spacing:-.02em;font-weight:700}
h1{font-size:clamp(1.75rem,1.2rem + 2vw,2.5rem)}
h2{font-size:clamp(1.3rem,1.1rem + .9vw,1.7rem)}
h3{font-size:1.12rem}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.25em}
:focus-visible{outline:3px solid var(--brand);outline-offset:2px;border-radius:6px}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-9999px;top:0;background:var(--bg);padding:12px 18px;z-index:99}
.skip:focus{left:12px;top:12px}
.muted{color:var(--ink-3)}
.small{font-size:.9rem}
.center{text-align:center}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:var(--bg);
  border-bottom:1px solid var(--line)}
.header-in{display:flex;align-items:center;gap:16px;height:64px}
.logo{display:flex;align-items:center;gap:9px;font-weight:800;font-size:1.2rem;letter-spacing:-.03em;color:var(--ink)}
.logo:hover{text-decoration:none}
.logo-mark{width:30px;height:30px;flex:0 0 30px;display:block}
.nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav a{padding:8px 12px;border-radius:9px;color:var(--ink-2);font-size:.95rem;font-weight:600}
.nav a:hover{background:var(--bg-soft);color:var(--ink);text-decoration:none}
.nav a[aria-current="page"]{color:var(--brand);background:var(--brand-soft)}
.menu-btn{display:none;margin-left:auto;background:var(--bg-soft);border:1px solid var(--line);
  border-radius:10px;width:42px;height:42px;align-items:center;justify-content:center;cursor:pointer;color:var(--ink)}
@media (max-width:880px){
  .nav{position:fixed;inset:64px 0 auto;flex-direction:column;align-items:stretch;gap:2px;
    background:var(--bg);border-bottom:1px solid var(--line);padding:10px 16px 18px;display:none;box-shadow:var(--shadow)}
  .nav.open{display:flex}
  .nav a{padding:12px 10px;font-size:1.02rem}
  .menu-btn{display:flex}
}

/* ---------- Search ---------- */
.searchbox{position:relative}
.searchbox input[type="search"]{
  width:100%;padding:14px 16px 14px 46px;font-size:1rem;font-family:inherit;color:var(--ink);
  background:var(--bg);border:1.5px solid var(--line-strong);border-radius:12px;appearance:none}
.searchbox.big input[type="search"]{padding:18px 18px 18px 54px;font-size:1.08rem;border-radius:16px;box-shadow:var(--shadow)}
.searchbox input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px var(--brand-soft)}
.searchbox .sicon{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--ink-4);pointer-events:none;display:flex}
.searchbox.big .sicon{left:20px}
.results{position:absolute;left:0;right:0;top:calc(100% + 8px);background:var(--bg);border:1px solid var(--line);
  border-radius:14px;box-shadow:var(--shadow-lg);padding:6px;z-index:60;max-height:60vh;overflow:auto;display:none;text-align:left}
.results.open{display:block}
.results a{display:block;padding:10px 12px;border-radius:10px;color:var(--ink)}
.results a:hover,.results a.active{background:var(--bg-soft);text-decoration:none}
.results .r-name{font-weight:600;font-size:.98rem}
.results .r-cat{font-size:.8rem;color:var(--ink-3)}
.results .r-empty{padding:14px;color:var(--ink-3);font-size:.95rem}

/* ---------- Hero ---------- */
.hero{padding:clamp(40px,6vw,76px) 0 clamp(28px,4vw,44px);text-align:center;position:relative;
  background:radial-gradient(58% 62% at 50% 0%,var(--brand-soft),transparent 72%)}
.hero h1{font-size:clamp(2.1rem,1.4rem + 3.2vw,3.5rem);letter-spacing:-.035em;margin-bottom:.3em}
.hero .lead{font-size:clamp(1.05rem,1rem + .5vw,1.3rem);color:var(--ink-2);max-width:640px;margin:0 auto 1.6em}
.hero .searchbox{max-width:620px;margin:0 auto}
.trust{display:flex;flex-wrap:wrap;gap:8px 18px;justify-content:center;margin-top:22px;color:var(--ink-3);font-size:.92rem}
.trust span{display:inline-flex;align-items:center;gap:7px}

/* ---------- Sections / cards ---------- */
.section{padding:clamp(32px,5vw,56px) 0}
.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:22px;flex-wrap:wrap}
.section-head h2{margin:0}
.section-head .sd{margin:.35em 0 0;color:var(--ink-3);font-size:.98rem;width:100%}
.grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
.card{display:block;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px;color:var(--ink);transition:border-color .15s,transform .15s,box-shadow .15s}
.card:hover{text-decoration:none;border-color:var(--line-strong);transform:translateY(-2px);box-shadow:var(--shadow)}
.card .ico{width:36px;height:36px;border-radius:10px;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.card h3{margin:0 0 4px;font-size:1.02rem;font-weight:650}
.card .cd{margin:0;color:var(--ink-3);font-size:.9rem;line-height:1.5}
.card .tag{display:inline-block;margin-top:10px;font-size:.75rem;font-weight:600;letter-spacing:.03em;
  text-transform:uppercase;color:var(--ink-3)}
.cat-card .ico{background:var(--accent-soft);color:var(--warn)}
.cat-card .count{font-size:.8rem;color:var(--ink-4);font-weight:600}
.soon .ico{background:var(--bg-sunk);color:var(--ink-4)}

.chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}
.chip{padding:8px 14px;border-radius:999px;border:1px solid var(--line-strong);background:var(--bg);
  color:var(--ink-2);font-size:.9rem;font-weight:600;cursor:pointer;font-family:inherit}
.chip:hover{border-color:var(--brand);color:var(--brand)}
.chip[aria-pressed="true"]{background:var(--brand);border-color:var(--brand);color:#fff}

/* ---------- Tool page ---------- */
.breadcrumb{font-size:.87rem;color:var(--ink-3);padding:18px 0 0}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0}
.breadcrumb li::after{content:"/";margin-left:6px;color:var(--ink-4)}
.breadcrumb li:last-child::after{content:""}
.breadcrumb a{color:var(--ink-3)}
.tool-head{padding:6px 0 20px}
.tool-head h1{margin-bottom:.25em}
.tool-head .sub{color:var(--ink-2);font-size:1.08rem;margin:0;max-width:70ch}
.layout{display:grid;grid-template-columns:minmax(0,1fr);gap:32px;padding-bottom:40px}
@media (min-width:1040px){ .layout.with-aside{grid-template-columns:minmax(0,1fr) 300px} }
.aside{display:none}
@media (min-width:1040px){ .aside{display:block} .aside-sticky{position:sticky;top:88px} }

.tool{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:clamp(18px,3vw,28px);margin-bottom:26px}
.field{margin-bottom:16px}
.field:last-child{margin-bottom:0}
label{display:block;font-size:.9rem;font-weight:600;color:var(--ink-2);margin-bottom:6px}
input[type="text"],input[type="number"],input[type="date"],input[type="time"],select,textarea{
  width:100%;padding:13px 14px;font-size:1rem;font-family:inherit;color:var(--ink);background:var(--bg);
  border:1.5px solid var(--line-strong);border-radius:var(--radius-sm);appearance:none;min-height:48px}
textarea{min-height:190px;resize:vertical;line-height:1.55}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px var(--brand-soft)}
input[aria-invalid="true"]{border-color:var(--warn)}
select{background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' fill='none' stroke='%236b7488' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 8l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 12px center;padding-right:40px}
.row{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(190px,1fr))}
.row-3{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}
.hint{font-size:.83rem;color:var(--ink-3);margin:6px 0 0}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;min-height:48px;
  border-radius:var(--radius-sm);border:1.5px solid transparent;background:var(--brand);color:#fff;
  font-family:inherit;font-size:1rem;font-weight:600;cursor:pointer;transition:background .15s,border-color .15s}
.btn:hover{background:var(--brand-ink);text-decoration:none;color:#fff}
.btn.ghost{background:transparent;border-color:var(--line-strong);color:var(--ink-2)}
.btn.ghost:hover{background:var(--bg);border-color:var(--ink-4);color:var(--ink)}
.btn.small{padding:8px 14px;min-height:38px;font-size:.88rem}
.btn:disabled{opacity:.5;cursor:not-allowed}

.result{margin-top:18px;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px}
.result[hidden]{display:none}
.result .label{font-size:.85rem;color:var(--ink-3);font-weight:600;text-transform:uppercase;letter-spacing:.05em;margin:0 0 6px}
.result .value{font-size:clamp(1.6rem,1.2rem + 1.6vw,2.3rem);font-weight:750;letter-spacing:-.03em;line-height:1.15;
  word-break:break-word;margin:0}
.result .value small{font-size:.5em;font-weight:600;color:var(--ink-3);letter-spacing:0}
.result .detail{margin:12px 0 0;color:var(--ink-2);font-size:.95rem;padding-left:1.1em}
.result .detail li{margin-bottom:4px}
.stats{display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(118px,1fr));margin:0;padding:0;list-style:none}
.stats li{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-sm);padding:14px}
.stats .n{display:block;font-size:1.5rem;font-weight:750;letter-spacing:-.02em;line-height:1.1}
.stats .k{display:block;font-size:.8rem;color:var(--ink-3);margin-top:2px}
.error{margin-top:14px;background:var(--warn-soft);border:1px solid var(--warn);color:var(--warn);
  border-radius:var(--radius-sm);padding:12px 14px;font-size:.94rem}
.error[hidden]{display:none}
.copied{color:var(--ok)}
.out{width:100%;font-family:var(--mono);font-size:.92rem}

/* ---------- Content ---------- */
.content{max-width:74ch}
.content h2{margin-top:1.7em}
.content h2:first-child{margin-top:0}
.steps{list-style:none;counter-reset:s;padding:0;margin:0 0 1.4em}
.steps li{counter-increment:s;position:relative;padding-left:46px;margin-bottom:14px}
.steps li::before{content:counter(s);position:absolute;left:0;top:0;width:30px;height:30px;border-radius:9px;
  background:var(--brand-soft);color:var(--brand-ink);font-weight:700;font-size:.95rem;
  display:flex;align-items:center;justify-content:center}
.steps b{display:block;color:var(--ink)}
.uses{list-style:none;padding:0;margin:0 0 1.4em}
.uses li{position:relative;padding-left:26px;margin-bottom:10px;color:var(--ink-2)}
.uses li::before{content:"";position:absolute;left:4px;top:.62em;width:7px;height:7px;border-radius:50%;background:var(--accent)}
.examples{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin:0 0 1.4em}
.examples table{width:100%;border-collapse:collapse;font-size:.95rem}
.examples th,.examples td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--line)}
.examples th{background:var(--bg-soft);font-size:.82rem;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-3)}
.examples tr:last-child td{border-bottom:0}
.examples td:last-child{font-weight:650}
.table-scroll{overflow-x:auto}
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;padding:16px 34px 16px 0;font-weight:600;position:relative;color:var(--ink)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:8px;top:22px;width:9px;height:9px;
  border-right:2px solid var(--ink-3);border-bottom:2px solid var(--ink-3);transform:rotate(45deg);transition:transform .18s}
.faq details[open] summary::after{transform:rotate(-135deg)}
.faq .a{padding:0 0 16px;color:var(--ink-2);max-width:72ch}
.faq .a p:last-child{margin-bottom:0}
.note{background:var(--ok-soft);border:1px solid var(--ok);
  border-radius:var(--radius);padding:14px 16px;font-size:.94rem;color:var(--ink-2);display:flex;gap:10px}
.note svg{flex:0 0 auto;color:var(--ok);margin-top:3px}

/* ---------- Ads ---------- */
.ad{margin:26px 0;display:flex;flex-direction:column;align-items:center;justify-content:center;
  background:var(--bg-soft);border:1px dashed var(--line-strong);border-radius:var(--radius);
  color:var(--ink-4);min-height:100px;padding:14px;text-align:center}
.ad .ad-label{font-size:.68rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase}
.ad-leaderboard{min-height:110px}
.ad-rect{min-height:250px}
.ad-sidebar{min-height:600px;margin:0}
@media (max-width:600px){.ad-rect{min-height:200px}}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--bg-soft);padding:44px 0 28px}
.foot-grid{display:grid;gap:28px;grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}
.foot-grid h4{font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-3);margin-bottom:12px}
.foot-grid ul{list-style:none;padding:0;margin:0}
.foot-grid li{margin-bottom:8px}
.foot-grid a{color:var(--ink-2);font-size:.94rem}
.foot-brand .fb{color:var(--ink-3);font-size:.92rem;max-width:34ch;margin-top:12px}
.foot-bottom{margin-top:32px;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;
  gap:10px 20px;justify-content:space-between;color:var(--ink-3);font-size:.88rem}

/* ---------- Cookie banner ---------- */
.cookie{position:fixed;left:16px;right:16px;bottom:16px;z-index:80;max-width:560px;margin:0 auto;
  background:var(--bg);border:1px solid var(--line-strong);border-radius:var(--radius);box-shadow:var(--shadow-lg);
  padding:18px;display:none}
.cookie.show{display:block}
.cookie p{font-size:.92rem;color:var(--ink-2);margin:0 0 12px}
.cookie .actions{margin:0}