/* HYRO Technology — оформление.
   Палитра графит + янтарь, намеренно отличается от нефрита Shixia.
   Шрифты свои, лежат рядом: внешних запросов сайт не делает. */

@font-face { font-family: Barlow; src: url(../fonts/barlow-400.woff2) format("woff2");
             font-weight: 400; font-display: swap; }
@font-face { font-family: Barlow; src: url(../fonts/barlow-500.woff2) format("woff2");
             font-weight: 500; font-display: swap; }
@font-face { font-family: Barlow; src: url(../fonts/barlow-600.woff2) format("woff2");
             font-weight: 600; font-display: swap; }
@font-face { font-family: Barlow; src: url(../fonts/barlow-700.woff2) format("woff2");
             font-weight: 700; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url(../fonts/jbmono-400.woff2) format("woff2");
             font-weight: 400; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url(../fonts/jbmono-500.woff2) format("woff2");
             font-weight: 500; font-display: swap; }

:root {
  --ink: #1B1E21;
  --ink-2: #2A2F34;
  --paper: #F6F6F4;
  --white: #FFFFFF;
  --amber: #D9722A;
  --amber-lt: #F0954B;
  --slate: #6C7076;
  --line: #E3E4E1;
  --line-dk: #343A40;
  --sans: Barlow, "Helvetica Neue", Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font-family: var(--sans); font-size: 17px; line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
[hidden] { display: none !important; }

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 28px; }

/* ---------- шапка ---------- */
.hd { background: var(--ink); color: var(--paper); position: sticky; top: 0; z-index: 40; }
.hd-in { display: flex; align-items: center; gap: 26px; height: 66px; }
.brand { display: flex; align-items: baseline; gap: 9px; text-decoration: none; margin-right: auto; }
.brand b { font-size: 23px; font-weight: 700; letter-spacing: .10em; }
.brand span { font-family: var(--mono); font-size: 10.5px; color: var(--amber-lt);
              letter-spacing: .16em; text-transform: uppercase; }
.nav { display: flex; gap: 24px; }
.nav a { font-size: 15px; text-decoration: none; color: #C7CBCE; padding: 4px 0;
         border-bottom: 2px solid transparent; }
.nav a:hover { color: var(--paper); }
.nav a[aria-current] { color: var(--paper); border-bottom-color: var(--amber); }
.hd .cta {
  font-family: var(--mono); font-size: 13px; text-decoration: none;
  background: var(--amber); color: #fff; padding: 10px 18px; white-space: nowrap;
}
.hd .cta:hover { background: var(--amber-lt); }
.burger { display: none; background: none; border: 1px solid #3A4046; color: var(--paper);
          font-family: var(--mono); font-size: 13px; padding: 8px 13px; cursor: pointer; }

/* ---------- герой ---------- */
.hero { background: var(--ink); color: var(--paper); padding: 74px 0 84px; }
.eyebrow { font-family: var(--mono); font-size: 12px; letter-spacing: .18em;
           text-transform: uppercase; color: var(--amber-lt); margin: 0 0 18px; }
.hero h1 { font-size: clamp(34px, 5.4vw, 58px); line-height: 1.08; margin: 0 0 22px;
           font-weight: 700; letter-spacing: -.015em; max-width: 17ch; }
.hero p { font-size: 19px; color: #C7CBCE; max-width: 60ch; margin: 0 0 30px; }
.hero .row { display: flex; gap: 14px; flex-wrap: wrap; }

.btn { font-family: var(--mono); font-size: 14px; text-decoration: none;
       padding: 13px 22px; display: inline-block; border: 1px solid transparent; }
.btn-a { background: var(--amber); color: #fff; }
.btn-a:hover { background: var(--amber-lt); }
.btn-g { border-color: #4A5157; color: var(--paper); }
.btn-g:hover { border-color: var(--paper); }
.btn-d { background: var(--ink); color: var(--paper); }
.btn-d:hover { background: var(--ink-2); }
.btn-o { border-color: var(--line); color: var(--ink); background: var(--white); }
.btn-o:hover { border-color: var(--ink); }

/* ---------- секции ---------- */
section { padding: 68px 0; }
section.tight { padding: 46px 0; }
h2 { font-size: clamp(26px, 3.4vw, 36px); line-height: 1.16; margin: 0 0 16px;
     font-weight: 700; letter-spacing: -.01em; }
h3 { font-size: 20px; margin: 0 0 8px; font-weight: 600; }
.lead { font-size: 18px; color: var(--slate); max-width: 66ch; margin: 0 0 34px; }

.cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.cols-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 34px; align-items: start; }
.card { background: var(--white); border: 1px solid var(--line); padding: 26px; }
.card h3 { font-size: 18px; }
.card p { margin: 0; color: var(--slate); font-size: 15.5px; line-height: 1.6; }
.card .num { font-family: var(--mono); font-size: 12px; color: var(--amber);
             letter-spacing: .1em; margin: 0 0 12px; }

/* ---------- каталог ---------- */
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.prod { background: var(--white); border: 1px solid var(--line); display: flex;
        flex-direction: column; }
.prod .ph { background: #fff; padding: 14px; border-bottom: 1px solid var(--line); }
.prod .ph img { width: 100%; aspect-ratio: 4/3; object-fit: contain; }
.prod .bd { padding: 20px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.prod h3 { font-size: 17.5px; margin: 0 0 4px; }
.prod .sub { font-family: var(--mono); font-size: 12px; color: var(--amber);
             letter-spacing: .06em; margin: 0 0 12px; }
.prod p { margin: 0 0 16px; font-size: 15px; color: var(--slate); line-height: 1.6; }
.spec { list-style: none; margin: auto 0 0; padding: 14px 0 0; border-top: 1px solid var(--line);
        font-family: var(--mono); font-size: 12.5px; color: var(--slate); }
.spec li { display: flex; justify-content: space-between; gap: 12px; padding: 3px 0; }
.spec b { color: var(--ink); font-weight: 500; text-align: right; }

/* ---------- выделенный блок ---------- */
.feat { background: var(--ink); color: var(--paper); }
.feat .lead { color: #C7CBCE; }
.feat .inner { display: grid; grid-template-columns: 420px 1fr; gap: 46px; align-items: center; }
.feat .ph { background: var(--white); padding: 26px; }
.feat ul { list-style: none; margin: 24px 0 0; padding: 0; }
.feat li { padding: 14px 0; border-top: 1px solid var(--line-dk); }
.feat li b { display: block; font-size: 16px; margin-bottom: 3px; }
.feat li span { color: #9DA3A8; font-size: 15px; }

/* ---------- таблица спецификации ---------- */
.spectable { width: 100%; border-collapse: collapse; background: var(--white);
             border: 1px solid var(--line); font-size: 14.5px; }
.spectable td { padding: 9px 16px; border-bottom: 1px solid var(--line); }
.spectable tr:last-child td { border-bottom: 0; }
.spectable td:first-child { color: var(--slate); width: 54%; }
.spectable td:last-child { font-family: var(--mono); font-size: 13px; }
details.specs { margin-top: 26px; }
details.specs summary { font-family: var(--mono); font-size: 13.5px; cursor: pointer;
  padding: 13px 18px; background: var(--white); border: 1px solid var(--line); }
details.specs summary:hover { border-color: var(--ink); }
details.specs[open] summary { border-bottom: 0; }

/* ---------- форма ---------- */
.form { display: flex; flex-direction: column; gap: 16px; max-width: 620px; }
.form .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form label { font-family: var(--mono); font-size: 11px; letter-spacing: .1em;
              text-transform: uppercase; color: var(--slate); display: block; margin-bottom: 6px; }
.form input, .form select, .form textarea {
  width: 100%; font-family: var(--sans); font-size: 16px; padding: 12px 14px;
  border: 1px solid var(--line); background: var(--white); color: var(--ink);
}
.form input:focus, .form select:focus, .form textarea:focus {
  outline: none; border-color: var(--amber); box-shadow: 0 0 0 3px rgba(217,114,42,.14);
}
.form textarea { min-height: 132px; resize: vertical; }
.fmsg { font-family: var(--mono); font-size: 13.5px; min-height: 20px; }
.fmsg.err { color: #B03A2E; }
.btn.loading { opacity: .9; cursor: progress; display: inline-flex; align-items: center; gap: 10px; }
.btn.loading::before {
  content: ""; width: 13px; height: 13px; border-radius: 50%;
  border: 2px solid currentColor; border-top-color: transparent;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.fdone { border: 1px solid var(--line); border-left: 3px solid var(--amber);
  background: #FBF2EA; padding: 22px 24px; max-width: 620px;
  animation: rise .28s ease both; }
@keyframes rise { from { opacity: 0; transform: translateY(6px); } }
.fdone h3 { margin: 0 0 6px; }
.fdone p { margin: 0 0 14px; color: var(--slate); font-size: 15px; }

/* ---------- подвал ---------- */
.ft { background: var(--ink); color: #9DA3A8; padding: 46px 0 34px; font-size: 14.5px; }
.ft a { color: #C7CBCE; text-decoration: none; }
.ft a:hover { color: var(--paper); }
.ft .top { display: flex; justify-content: space-between; gap: 30px; flex-wrap: wrap;
           padding-bottom: 26px; border-bottom: 1px solid var(--line-dk); }
.ft nav { display: flex; gap: 22px; flex-wrap: wrap; }
.ft .bot { padding-top: 22px; display: flex; justify-content: space-between; gap: 20px;
           flex-wrap: wrap; font-size: 13px; }
.ft .brand b { color: var(--paper); }

/* ---------- адаптив ---------- */
@media (max-width: 980px) {
  .cols, .grid { grid-template-columns: repeat(2, 1fr); }
  .feat .inner { grid-template-columns: 1fr; gap: 28px; }
  .cols-2 { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  body { font-size: 16px; }
  .wrap { padding: 0 20px; }
  .burger { display: block; }
  .nav { display: none; position: absolute; top: 66px; left: 0; right: 0;
         background: var(--ink); flex-direction: column; gap: 0; padding: 8px 20px 18px;
         border-top: 1px solid var(--line-dk); }
  .nav.open { display: flex; }
  .nav a { padding: 13px 0; border-bottom: 1px solid var(--line-dk); }
  .nav a[aria-current] { border-bottom-color: var(--amber); }
  .hd .cta { display: none; }
  .nav .cta-m { display: block; background: var(--amber); color: #fff; text-align: center;
                margin-top: 12px; padding: 13px; border: 0; }
  .cols, .grid { grid-template-columns: 1fr; }
  .form .row2 { grid-template-columns: 1fr; }
  section { padding: 48px 0; }
  .hero { padding: 52px 0 58px; }
}
@media (min-width: 721px) { .nav .cta-m { display: none; } }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn.loading::before, .fdone { animation: none; }
}