:root{
  --bg:#0a0b0e;
  --surface:#13151b;
  --surface-2:#181b22;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --text:#f3f4f7;
  --muted:#8b909c;
  --muted-2:#6c717c;
  --radius:20px;
  --radius-lg:28px;
  --maxw:1080px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  min-height:100vh;
  font-family:Inter,"Segoe UI",system-ui,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.5;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
h1,h2,h3{font-family:"Space Grotesk",Inter,sans-serif;font-weight:600;letter-spacing:-.02em;line-height:1.05}

/* subtle film grain / vignette so flat dark isn't dead flat */
.bg-grain{
  position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(120% 80% at 50% -10%,rgba(120,140,200,.05),transparent 55%),
    radial-gradient(80% 60% at 100% 100%,rgba(60,120,90,.04),transparent 60%);
}

.page{position:relative;z-index:1;width:min(100% - 40px,var(--maxw));margin-inline:auto;padding-block:22px 56px}

/* ---------- nav ---------- */
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:64px}
.brand{display:inline-flex;align-items:center;gap:12px}
.brand-mark{width:42px;height:42px;border-radius:12px;overflow:hidden;background:var(--surface);border:1px solid var(--line);flex:none}
.brand-mark img{width:100%;height:100%;object-fit:cover}
.brand-text b{display:block;font-family:"Space Grotesk",sans-serif;font-size:15px;font-weight:600;letter-spacing:-.01em}
.brand-text small{display:block;font-size:11px;color:var(--muted);letter-spacing:.16em;text-transform:uppercase;margin-top:1px}
.nav-cta{
  display:inline-flex;align-items:center;min-height:42px;padding:0 18px;
  border:1px solid var(--line-strong);border-radius:999px;
  font-size:14px;font-weight:500;color:var(--text);
  transition:border-color .2s var(--ease),background .2s var(--ease)
}
.nav-cta:hover{border-color:rgba(255,255,255,.3);background:rgba(255,255,255,.03)}

/* ---------- hero ---------- */
.hero{max-width:760px;padding-block:18px 12px}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:12px;font-weight:500;color:var(--muted);letter-spacing:.06em;text-transform:uppercase;margin-bottom:26px}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:#33c27d;box-shadow:0 0 0 4px rgba(51,194,125,.14)}
h1{font-size:clamp(40px,7.5vw,76px);font-weight:600}
h1 em{font-style:normal;color:var(--muted-2)}
.lede{margin-top:22px;max-width:560px;font-size:clamp(16px,2.2vw,19px);color:var(--muted);line-height:1.6}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 22px;border-radius:14px;
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .18s var(--ease),background .2s var(--ease),border-color .2s var(--ease),opacity .2s
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-solid{background:var(--text);color:#0a0b0e}
.btn-solid:hover{background:#fff}
.btn-line{border-color:var(--line-strong);color:var(--text)}
.btn-line:hover{border-color:rgba(255,255,255,.32);background:rgba(255,255,255,.03)}
.btn-mini{min-height:42px;padding:0 16px;font-size:14px;border-radius:11px;background:var(--accent,#5b8cff);color:#fff}
.btn-mini:hover{filter:brightness(1.08)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{filter:none;border-color:rgba(255,255,255,.32);background:rgba(255,255,255,.03)}
.btn-wb{background:#7c2fb0;color:#fff}
.btn-wb:hover{filter:brightness(1.1)}

/* модалка */
.modal{position:fixed;inset:0;z-index:100;display:grid;place-items:center;padding:20px}
.modal[hidden]{display:none}
.modal-backdrop{position:absolute;inset:0;background:rgba(5,6,9,.72);backdrop-filter:blur(3px);animation:modal-fade .2s var(--ease)}
.modal-card{position:relative;width:min(100%,380px);background:var(--surface);border:1px solid var(--line-strong);border-radius:var(--radius-lg);padding:28px;text-align:center;box-shadow:0 30px 80px rgba(0,0,0,.5);animation:modal-pop .22s var(--ease)}
.modal-card h3{font-size:22px;margin-bottom:10px}
.modal-card p{color:var(--muted);font-size:15px;line-height:1.55;margin-bottom:22px}
.modal-ok{min-width:120px}
@keyframes modal-fade{from{opacity:0}to{opacity:1}}
@keyframes modal-pop{from{opacity:0;transform:translateY(10px) scale(.97)}to{opacity:1;transform:none}}

/* ---------- section heads ---------- */
.sec-head{margin-bottom:34px}
.sec-eyebrow{font-size:12px;font-weight:500;color:var(--muted);letter-spacing:.14em;text-transform:uppercase;margin-bottom:10px}
.sec-head h2{font-size:clamp(28px,4.5vw,42px)}

/* ---------- projects ---------- */
.projects{margin-top:96px}
.grid{display:grid;grid-template-columns:1fr;gap:18px}
.card{
  position:relative;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:0 28px;
  padding:26px 30px;border:1px solid var(--line);border-radius:var(--radius-lg);
  background:var(--surface);overflow:hidden;
  transition:border-color .25s var(--ease),background .25s var(--ease),transform .25s var(--ease)
}
.card::before{
  content:"";position:absolute;inset:0 0 auto 0;height:2px;
  background:var(--accent);opacity:.5;transition:opacity .25s var(--ease)
}
.card:hover{transform:translateY(-3px);border-color:var(--line-strong);background:var(--surface-2)}
.card:hover::before{opacity:1}
.card-body{min-width:0}
.logo{
  width:72px;height:72px;border-radius:50%;flex:none;overflow:hidden;
  background:#f4f5f8;display:grid;place-items:center;border:1px solid var(--line)
}
.logo img{width:100%;height:100%;object-fit:cover;border-radius:50%}
.card-tag{
  display:inline-block;margin-bottom:14px;
  font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;
  padding:6px 11px;border-radius:999px;color:var(--accent);
  background:color-mix(in srgb,var(--accent) 13%,transparent);
  border:1px solid color-mix(in srgb,var(--accent) 26%,transparent)
}
.card h3{font-size:23px;margin-bottom:8px}
.card p{color:var(--muted);font-size:15px;line-height:1.55;max-width:560px}
/* плашка-подарок (бонус) */
.gift{
  position:relative;display:inline-flex;align-items:center;gap:9px;margin-top:16px;
  padding:9px 15px;border-radius:12px;overflow:hidden;cursor:pointer;text-decoration:none;
  color:var(--accent);
  background:color-mix(in srgb,var(--accent) 15%,transparent);
  border:1px solid color-mix(in srgb,var(--accent) 40%,transparent);
  animation:gift-pulse 2.4s var(--ease) infinite;
  transition:transform .18s var(--ease),background .2s var(--ease),border-color .2s var(--ease)
}
.gift:hover{transform:translateY(-2px);background:color-mix(in srgb,var(--accent) 24%,transparent);border-color:color-mix(in srgb,var(--accent) 60%,transparent)}
.gift-ico{flex:none}
.gift-text{font-size:13.5px;color:var(--text)}
.gift-text b{color:var(--accent);font-weight:600}
.gift::after{
  content:"";position:absolute;top:0;left:-60%;width:45%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.35),transparent);
  transform:skewX(-18deg);animation:gift-shine 3.6s ease-in-out infinite
}
@keyframes gift-pulse{
  0%,100%{box-shadow:0 0 0 0 color-mix(in srgb,var(--accent) 30%,transparent)}
  50%{box-shadow:0 0 0 6px color-mix(in srgb,var(--accent) 0%,transparent)}
}
@keyframes gift-shine{
  0%{left:-60%}
  55%,100%{left:130%}
}
.card-socials{display:flex;gap:16px;margin-top:14px}
.card-socials a{font-size:13px;color:var(--muted-2);text-decoration:none;border-bottom:1px solid transparent;transition:color .2s,border-color .2s}
.card-socials a:hover{color:var(--text);border-color:var(--line-strong)}
.card-actions{display:flex;flex-direction:column;gap:10px;flex:none;align-items:stretch}
.card-actions .btn{display:inline-flex;align-items:center;justify-content:center;gap:6px}
.chev{transition:transform .25s var(--ease);flex:none}
.btn[aria-expanded="true"] .chev{transform:rotate(180deg)}
.arrow-down{flex:none;margin-left:2px;transition:transform .25s var(--ease)}
.btn-solid:hover .arrow-down{transform:translateY(3px)}

/* раскрывающаяся инструкция */
.card-manual{grid-column:1 / -1;display:grid;grid-template-rows:0fr;transition:grid-template-rows .32s var(--ease),margin-top .32s var(--ease);margin-top:0}
.card-manual[hidden]{display:none}
.card-manual.open{grid-template-rows:1fr;margin-top:22px}
.manual-inner{overflow:hidden;min-height:0}
.card-manual h4{font-family:"Space Grotesk",sans-serif;font-size:16px;font-weight:600;margin-bottom:16px;padding-top:22px;border-top:1px solid var(--line)}
.manual-steps{list-style:none;counter-reset:step;display:grid;gap:14px}
.manual-steps li{counter-increment:step;display:grid;grid-template-columns:auto 1fr;gap:4px 14px;align-items:start}
.manual-steps li::before{
  content:counter(step);grid-row:1 / span 2;
  width:28px;height:28px;border-radius:50%;flex:none;
  display:grid;place-items:center;font-size:13px;font-weight:600;
  color:var(--accent);background:color-mix(in srgb,var(--accent) 13%,transparent);
  border:1px solid color-mix(in srgb,var(--accent) 26%,transparent)
}
.manual-steps b{font-size:15px;font-weight:600}
.manual-steps span{color:var(--muted);font-size:14px;line-height:1.55}
.manual-warn{margin-top:18px;padding:16px 18px;border-radius:14px;background:rgba(239,91,107,.07);border:1px solid rgba(239,91,107,.22)}
.manual-warn .warn-title{font-size:13px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:#ff8a96;margin-bottom:10px}
.manual-warn ul{list-style:none;display:grid;gap:8px}
.manual-warn li{position:relative;padding-left:22px;color:#e9c2c6;font-size:14px;line-height:1.5}
.manual-warn li::before{content:"!";position:absolute;left:0;top:0;width:16px;height:16px;border-radius:50%;display:grid;place-items:center;font-size:11px;font-weight:700;color:#fff;background:#ef5b6b}
.card-feat{position:relative}
.ribbon{
  position:absolute;top:18px;right:-34px;transform:rotate(45deg);
  background:var(--accent);color:#fff;font-size:10px;font-weight:600;
  letter-spacing:.1em;text-transform:uppercase;padding:6px 42px;z-index:2
}

/* ---------- footer ---------- */
.footer{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:64px;padding-top:26px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
.footer a{color:var(--muted);transition:color .2s}
.footer a:hover{color:var(--text)}

/* ---------- responsive ---------- */
/* планшет: карточка лого + текст слева, кнопки уходят вниз под текст */
@media(max-width:920px){
  .projects{margin-top:72px}
  .card{grid-template-columns:auto 1fr;gap:0 24px}
  .card .logo{grid-row:1 / span 2}
  .card-body{grid-column:2}
  .card-actions{grid-column:2;flex-direction:row;flex-wrap:wrap;margin-top:18px}
}

/* мобильный */
@media(max-width:600px){
  .page{width:min(100% - 28px,var(--maxw));padding-block:18px 44px}
  .nav{margin-bottom:44px}
  .brand-text small{display:none}
  .hero-actions{gap:10px}
  .hero-actions .btn{flex:1 1 auto}
  .card{grid-template-columns:1fr;gap:0;padding:24px}
  .card .logo{grid-row:auto;margin-bottom:18px}
  .card-body,.card-actions{grid-column:1}
  .card-actions .btn{flex:1 1 auto}
}

@media(prefers-reduced-motion:reduce){
  *{transition:none!important;scroll-behavior:auto!important;animation:none!important}
  .btn:hover,.card:hover{transform:none}
}

/* keyboard focus */
:focus-visible{outline:2px solid #5b8cff;outline-offset:3px;border-radius:6px}