/* ==========================================================================
   UMIDA — base layer
   Токены, сброс, типографика, фон, кнопки, утилиты, общий каркас (nav/footer)
   ========================================================================== */

:root{
  /* surfaces */
  --bg:#0A0A0C;
  --bg-2:#0E0E11;
  --bg-3:#141417;
  --panel:rgba(255,255,255,.022);
  --panel-2:rgba(255,255,255,.04);
  --panel-strong:rgba(20,20,23,.9);

  /* lines */
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.15);
  --line-3:rgba(255,255,255,.26);

  /* text */
  --text:#F2F2F0;
  --muted:#9A9AA0;
  --muted-2:#606068;
  --ink:#0B0B0D;

  /* accent — electric lime */
  --accent:#D2FF3A;
  --accent-2:#B7E52A;
  --accent-soft:rgba(210,255,58,.11);
  --accent-line:rgba(210,255,58,.34);
  --accent-glow:rgba(210,255,58,.20);

  /* project accents */
  --c-umida:#3DD6A8;
  --c-guide:#FF9E4F;
  --c-yazdes:#57C7FF;
  --c-androeed:#7BDA57;
  --c-kitchen:#FF6B8B;
  --c-hotel:#E8C15A;
  --c-legal:#8B7BFF;
  --c-weightless:#E879F9;
  --c-market:#F25F5C;
  --c-bottleneck:#22D3EE;
  --c-game:#B4F461;

  /* geometry */
  --r:6px;
  --r-lg:12px;
  --r-pill:999px;
  --nav-h:68px;
  --step:8px;
  --ease:cubic-bezier(.16,1,.3,1);

  /* type */
  --font-sans:'Manrope',system-ui,-apple-system,'Segoe UI',sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,'Cascadia Code',Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg);-webkit-text-size-adjust:100%}
body{
  margin:0;min-height:100vh;background:transparent;color:var(--text);
  font-family:var(--font-sans);font-size:16px;line-height:1.6;
  overflow-x:hidden;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
body.is-locked{overflow:hidden}
h1,h2,h3,h4{margin:0;line-height:1.05;letter-spacing:-.03em;font-weight:700}
p{margin:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
img,svg{display:block;max-width:100%}
ul,ol{margin:0;padding:0;list-style:none}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
::selection{background:var(--accent);color:var(--ink)}

/* ---------- utilities ---------- */
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.container{width:100%;max-width:1320px;margin:0 auto;padding-inline:clamp(18px,4vw,48px)}
.mono{font-family:var(--font-mono)}
.skip-link{position:fixed;left:16px;top:-80px;z-index:400;padding:12px 18px;border-radius:8px;background:var(--accent);color:var(--ink);transition:top .25s;font-weight:700}
.skip-link:focus{top:16px}
.scroll-progress{position:fixed;left:0;top:0;height:2px;width:0;z-index:300;background:var(--accent);box-shadow:0 0 14px var(--accent-glow)}

/* ---------- backdrop ---------- */
.backdrop{position:fixed;inset:0;z-index:-2;overflow:hidden;pointer-events:none;background:var(--bg)}
.backdrop-grid{position:absolute;inset:0;opacity:.5;
  background-image:
    linear-gradient(to right,var(--line) 1px,transparent 1px),
    linear-gradient(to bottom,var(--line) 1px,transparent 1px);
  background-size:72px 72px;
  -webkit-mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 78%);
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 78%)}
.backdrop-glow{position:absolute;width:52vw;height:52vw;left:50%;top:-18vw;transform:translateX(-50%);
  border-radius:50%;filter:blur(120px);opacity:.16;background:radial-gradient(circle,var(--accent),transparent 62%)}
.backdrop-noise{position:absolute;inset:0;opacity:.04;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}

/* ---------- typography ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:12px;font-family:var(--font-mono);
  font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);font-weight:500}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);flex-shrink:0}
.eyebrow--center{justify-content:center}
.section-title{font-size:clamp(30px,4.6vw,54px);line-height:1.02;letter-spacing:-.035em;font-weight:800}
.section-lead{color:var(--muted);font-size:15px;max-width:56ch;line-height:1.7}
.txt-accent{color:var(--accent)}
.txt-outline{color:transparent;-webkit-text-stroke:1.4px rgba(242,242,240,.72)}
@media (max-width:640px){.txt-outline{-webkit-text-stroke:1px rgba(242,242,240,.72)}}

/* ---------- section scaffolding ---------- */
.section{position:relative;padding-block:clamp(72px,10vw,150px)}
.section-head{display:flex;flex-direction:column;gap:20px;margin-bottom:clamp(40px,6vw,72px)}
.section-head--split{flex-direction:row;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap}
.section-head--split .section-title{max-width:16ch}
.section-head--split .section-lead{align-self:flex-end;margin-bottom:6px}

/* ---------- buttons ---------- */
.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:15px 26px;border-radius:var(--r-pill);font-weight:600;font-size:14.5px;letter-spacing:-.01em;
  border:1px solid transparent;white-space:nowrap;transition:transform .3s var(--ease),background .3s,border-color .3s,color .3s,box-shadow .3s}
.btn svg{width:17px;height:17px;transition:transform .35s var(--ease)}
.btn:hover svg{transform:translateX(4px)}
.btn:active{transform:scale(.97)}
.btn-lg{padding:17px 32px;font-size:15px}
.btn-sm{padding:11px 20px;font-size:13.5px}
.btn-primary{background:var(--accent);color:var(--ink);box-shadow:0 14px 38px -18px var(--accent-glow)}
.btn-primary:hover{background:#e0ff60;transform:translateY(-2px)}
.btn-ghost{background:rgba(255,255,255,.03);border-color:var(--line-2);color:var(--text)}
.btn-ghost:hover{background:rgba(255,255,255,.07);border-color:var(--line-3)}
.btn-mono{font-family:var(--font-mono);font-size:12.5px;letter-spacing:.08em;text-transform:uppercase}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:12px;
  letter-spacing:.1em;text-transform:uppercase;color:var(--text);font-weight:500}
.link-arrow svg{width:15px;height:15px;transition:transform .3s var(--ease)}
.link-arrow:hover{color:var(--accent)}
.link-arrow:hover svg{transform:translateX(5px)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
[data-delay="1"]{transition-delay:.08s}
[data-delay="2"]{transition-delay:.16s}
[data-delay="3"]{transition-delay:.24s}
[data-delay="4"]{transition-delay:.32s}
[data-delay="5"]{transition-delay:.4s}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* ---------- nav ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:120;transition:background .4s,border-color .4s}
.nav-inner{max-width:1320px;margin:0 auto;padding:14px clamp(18px,4vw,48px);
  display:flex;align-items:center;gap:clamp(14px,2vw,28px)}
.nav.is-scrolled{background:rgba(10,10,12,.82);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.brand{display:inline-flex;align-items:center;gap:11px;font-weight:800;font-size:17px;letter-spacing:-.02em;flex-shrink:0}
.brand-mark{width:30px;height:30px;border-radius:7px;background:var(--accent);color:var(--ink);
  display:grid;place-items:center;font-family:var(--font-mono);font-weight:700;font-size:13px;flex-shrink:0}
.brand-sub{display:none;font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;color:var(--muted);text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{position:relative;padding:9px 14px;border-radius:var(--r-pill);font-size:14px;font-weight:500;
  color:var(--muted);transition:color .25s,background .25s}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:var(--text)}
.nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;background:var(--accent)}
.nav-actions{display:flex;align-items:center;gap:10px}
.lang-switch{position:relative;display:flex;align-items:center}
.lang-current{display:inline-flex;align-items:center;gap:7px;padding:7px 11px;border:1px solid var(--line-2);border-radius:var(--r-pill);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:var(--muted);
  transition:color .25s,border-color .25s,background .25s}
.lang-current:hover{color:var(--text);border-color:var(--line-3);background:rgba(255,255,255,.04)}
.lang-current svg{width:12px;height:12px;transition:transform .25s var(--ease)}
.lang-switch.is-open .lang-current{color:var(--text);border-color:var(--line-3)}
.lang-switch.is-open .lang-current svg{transform:rotate(180deg)}
.lang-menu{position:absolute;right:0;top:calc(100% + 8px);z-index:130;min-width:88px;padding:5px;
  border:1px solid var(--line-2);background:rgba(14,14,17,.98);backdrop-filter:blur(14px);
  display:none;flex-direction:column;gap:2px;box-shadow:0 24px 60px -24px #000}
.lang-switch.is-open .lang-menu{display:flex}
.lang-btn{display:flex;align-items:center;justify-content:center;padding:8px 10px;border-radius:4px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;color:var(--muted);transition:.2s}
.lang-btn:hover{background:rgba(255,255,255,.06);color:var(--text)}
.lang-btn.is-active{background:var(--accent);color:var(--ink);font-weight:600}
.burger{display:none;width:42px;height:42px;border-radius:50%;border:1px solid var(--line-2);place-items:center;gap:5px}
.burger span{display:block;width:17px;height:1.5px;background:var(--text);transition:transform .3s,opacity .3s}
.burger[aria-expanded="true"] span:first-child{transform:translateY(3.5px) rotate(45deg)}
.burger[aria-expanded="true"] span:last-child{transform:translateY(-3.5px) rotate(-45deg)}

/* mobile menu */
.mobile-menu{position:fixed;inset:0;z-index:110;background:rgba(8,8,10,.97);backdrop-filter:blur(20px);
  display:flex;flex-direction:column;justify-content:center;padding:24px clamp(24px,6vw,56px);
  opacity:0;pointer-events:none;transition:opacity .35s var(--ease)}
.mobile-menu.is-open{opacity:1;pointer-events:auto}
.mobile-menu a{font-size:clamp(28px,7vw,42px);font-weight:800;letter-spacing:-.03em;padding:14px 0;
  border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;color:var(--text)}
.mobile-menu a.is-active{color:var(--accent)}
.mobile-menu a .mm-num{font-family:var(--font-mono);font-size:13px;color:var(--muted);font-weight:500}
.mobile-menu a:hover{color:var(--accent)}

/* ---------- marquee ---------- */
.marquee{overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:rgba(255,255,255,.015);user-select:none}
.marquee-track{display:flex;align-items:center;width:max-content;animation:marquee 38s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee-item{display:inline-flex;align-items:center;gap:26px;padding:18px 26px;white-space:nowrap;
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.marquee-item b{color:var(--accent);font-weight:400}
@keyframes marquee{to{transform:translateX(-50%)}}

/* ---------- footer ---------- */
.footer{position:relative;border-top:1px solid var(--line);margin-top:clamp(40px,6vw,80px);
  padding:clamp(48px,6vw,80px) 0 28px;background:linear-gradient(180deg,rgba(14,14,17,.2),rgba(6,6,8,.6))}
.footer-inner{display:grid;grid-template-columns:1.8fr 1fr 1fr 1fr;gap:clamp(28px,4vw,52px)}
.footer-brand{display:flex;flex-direction:column;gap:16px}
.footer-brand p{font-size:13.5px;color:var(--muted);max-width:34ch;line-height:1.7}
.footer-col{display:flex;flex-direction:column;gap:11px}
.footer-col h4{font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted-2);font-weight:600;margin-bottom:6px}
.footer-col a{font-size:14px;color:var(--muted);width:fit-content;transition:.25s}
.footer-col a:hover{color:var(--accent);transform:translateX(3px)}
.footer-bottom{max-width:1320px;margin:clamp(32px,4vw,52px) auto 0;padding:20px clamp(18px,4vw,48px) 0;
  border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--muted-2)}
.to-top{display:grid;place-items:center;width:42px;height:42px;border-radius:50%;border:1px solid var(--line-2);
  color:var(--text);transition:.3s var(--ease)}
.to-top svg{width:17px;height:17px}
.to-top:hover{background:var(--accent);color:var(--ink);border-color:var(--accent);transform:translateY(-3px)}

/* ---------- responsive (chrome) ---------- */
@media (max-width:1100px){
  .nav-links{display:none}
  .burger{display:grid}
}
@media (max-width:820px){
  .footer-inner{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  .footer-inner{grid-template-columns:1fr}
  .brand-sub{display:none}
  .lang-current{padding:6px 10px;font-size:10.5px}
  .lang-menu{min-width:84px}
}