/* =========================================================
   CollyWeb — общий слой дизайн-системы
   Тёплый графит + золотистый акцент. Тёмный премиальный минимализм.
   ========================================================= */
@import url('https://fonts.googleapis.com/css2?family=Onest:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root{
  /* Палитра */
  --bg:#292724;
  --bg-deep:#232120;
  --bg-deeper:#1e1c1a;
  --surface:#39332d;
  --card:#302d29;
  --card-raised:#37332e;
  --text:#e6e0d7;
  --text-soft:#c5bdb1;
  --text-dim:#a19a8f;
  --accent:#d6a66c;
  --accent-strong:#e4ba82;
  --accent-ink:#27211a;
  --accent-dim:rgba(214,166,108,.13);
  --line:rgba(230,224,215,.09);
  --line-strong:rgba(230,224,215,.17);
  --ok:#a3b18a;

  /* Типографика */
  --font-display:'Onest','Segoe UI',Arial,sans-serif;
  --font-body:'Onest','Segoe UI',Arial,sans-serif;
  --font-mono:'JetBrains Mono','Consolas',monospace;

  /* Параметры */
  --wrap:1200px;
  --r-s:8px;
  --r-m:14px;
  --r-l:20px;
  --dur:.28s;
  --dur-slow:.6s;
  --ease:cubic-bezier(.22,.61,.36,1);
  --header-h:76px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 24px);overflow-x:clip}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.65;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.menu-open{overflow:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer}
button,a,select,textarea{-webkit-tap-highlight-color:transparent}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
::selection{background:var(--accent);color:var(--accent-ink)}
h1,h2,h3,h4{font-family:var(--font-display);letter-spacing:-.02em;text-wrap:balance}
p{margin:0}

.section-wrap{width:min(var(--wrap),calc(100% - 48px));margin-inline:auto}

/* --- Точка-маркер и подписи-надзаголовки --- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;margin:0 0 20px;
  font-family:var(--font-mono);font-size:.72rem;font-weight:500;
  letter-spacing:.16em;text-transform:uppercase;color:var(--accent);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);opacity:.7}

/* --- Заголовки секций --- */
.section{padding-block:clamp(72px,9vw,124px)}
.section-head{max-width:640px;margin-bottom:clamp(36px,5vw,60px)}
.section-head h2{font-size:clamp(1.6rem,3.4vw,2.8rem);font-weight:700;line-height:1.12;margin:0}
.section-head h2 .tint{color:var(--accent)}
.section-head__text{margin-top:18px;color:var(--text-soft);font-size:1.02rem;line-height:1.75}
.section-head--row{max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:40px}
.section-head--row .section-head__text{max-width:380px;margin:0 0 6px}

/* --- Кнопки --- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:48px;padding:0 24px;border:1px solid transparent;border-radius:10px;
  font-family:var(--font-display);font-size:.94rem;font-weight:600;letter-spacing:.01em;
  transition:background var(--dur) var(--ease),border-color var(--dur),color var(--dur),transform var(--dur) var(--ease),box-shadow var(--dur);
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn--gold{background:var(--accent);color:var(--accent-ink);box-shadow:0 8px 24px rgba(214,166,108,.22)}
.btn--gold:hover{background:var(--accent-strong);box-shadow:0 10px 28px rgba(214,166,108,.3)}
.btn--ghost{border-color:var(--line-strong);color:var(--text)}
.btn--ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn--small{min-height:40px;padding:0 18px;font-size:.86rem}
.btn .btn__arrow{transition:transform var(--dur) var(--ease)}
.btn:hover .btn__arrow{transform:translateX(3px)}

/* --- Ссылки со стрелкой --- */
.arrow-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.92rem;font-weight:600;color:var(--accent);
  transition:color var(--dur),gap var(--dur) var(--ease);
}
.arrow-link:hover{color:var(--accent-strong);gap:12px}

/* --- Появление при прокрутке --- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.is-visible{opacity:1;transform:translateY(0)}
.reveal[data-delay="1"]{transition-delay:.08s}
.reveal[data-delay="2"]{transition-delay:.16s}
.reveal[data-delay="3"]{transition-delay:.24s}

/* =========================================================
   Хедер и навигация
   ========================================================= */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:50;height:var(--header-h);
  transition:background var(--dur),box-shadow var(--dur),border-color var(--dur);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(41,39,36,.82);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.site-header__in{
  width:min(var(--wrap),calc(100% - 48px));height:100%;margin-inline:auto;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{display:inline-flex;align-items:center;gap:11px;font-family:var(--font-display)}
.brand__mark{width:38px;height:38px;flex:none}
.brand__name{font-weight:700;font-size:1.12rem;letter-spacing:-.02em;line-height:1.1}
.brand__name .tint{color:var(--accent)}
.brand__sub{display:block;font-family:var(--font-mono);font-size:.55rem;font-weight:400;letter-spacing:.34em;color:var(--text-dim);margin-top:3px}
.nav{display:flex;align-items:center;gap:30px}
.nav__link{position:relative;font-size:.9rem;color:var(--text-soft);transition:color var(--dur)}
.nav__link::after{
  content:"";position:absolute;left:0;bottom:-6px;width:100%;height:1px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform var(--dur) var(--ease);
}
.nav__link:hover{color:var(--text)}
.nav__link:hover::after{transform:scaleX(1)}
.nav .btn{margin-left:8px}
.menu-toggle{
  display:none;width:44px;height:44px;flex-direction:column;align-items:center;justify-content:center;gap:6px;
  border:1px solid var(--line-strong);border-radius:10px;background:rgba(48,45,41,.6);
}
.menu-toggle span{width:18px;height:1.6px;background:var(--text);transition:transform var(--dur) var(--ease),opacity var(--dur)}
.menu-toggle[aria-expanded="true"] span:first-child{transform:translateY(3.8px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:last-child{transform:translateY(-3.8px) rotate(-45deg)}

/* --- Мобильное меню --- */
.mobile-panel{
  position:fixed;inset:var(--header-h) 0 0 0;z-index:40;
  display:flex;flex-direction:column;gap:8px;padding:28px 24px 40px;
  background:rgba(35,33,32,.97);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility var(--dur);
}
.mobile-panel.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.mobile-panel a{padding:14px 2px;border-bottom:1px solid var(--line);font-family:var(--font-display);font-size:1.35rem;font-weight:600;letter-spacing:-.01em}
.mobile-panel a:active{color:var(--accent)}
.mobile-panel .btn{margin-top:22px;justify-content:center}
.mobile-panel__meta{margin-top:auto;font-family:var(--font-mono);font-size:.7rem;letter-spacing:.12em;color:var(--text-dim);text-transform:uppercase}

/* =========================================================
   Подвал
   ========================================================= */
.site-footer{border-top:1px solid var(--line);background:var(--bg-deep);padding:44px 0 40px}
.site-footer__in{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:36px;align-items:start}
.site-footer__tag{margin-top:14px;max-width:280px;color:var(--text-soft);font-size:.92rem;line-height:1.7}
.site-footer h4{margin:4px 0 14px;font-size:.78rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--text-dim)}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.site-footer ul a{color:var(--text-soft);font-size:.92rem;transition:color var(--dur)}
.site-footer ul a:hover{color:var(--accent)}
.site-footer__bottom{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  width:min(var(--wrap),calc(100% - 48px));margin:36px auto 0;padding-top:22px;
  border-top:1px solid var(--line);
}
.site-footer__bottom p{font-family:var(--font-mono);font-size:.7rem;color:var(--text-dim);letter-spacing:.04em}
.footer-tg{display:inline-flex;align-items:center;gap:9px;font-size:.9rem;color:var(--text-soft);transition:color var(--dur)}
.footer-tg:hover{color:var(--accent)}
.footer-tg svg{width:17px;height:17px;fill:currentColor}

/* --- Тонкая полоса-прокрутка (ключевые слова) --- */
.marquee{
  overflow:hidden;border-block:1px solid var(--line);
  padding:18px 0;background:var(--bg-deep);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
}
.marquee__track{display:flex;gap:0;width:max-content;animation:marquee 36s linear infinite}
.marquee__seq{display:flex;align-items:center;flex:none}
.marquee__seq span{
  display:inline-flex;align-items:center;gap:26px;padding-right:26px;flex:none;
  font-family:var(--font-mono);font-size:.78rem;letter-spacing:.18em;
  text-transform:uppercase;color:var(--text-dim);white-space:nowrap;
}
.marquee__seq span::after{content:"";width:5px;height:5px;border-radius:50%;background:var(--accent);opacity:.55}

/* =========================================================
   Анимации (общие)
   ========================================================= */
@keyframes marquee{to{transform:translateX(-50%)}}
@keyframes float-soft{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
@keyframes blink{50%{opacity:0}}
@keyframes dot-pulse{0%,100%{opacity:.5;transform:scale(.8)}50%{opacity:1;transform:scale(1.1)}}
@keyframes spin{to{transform:rotate(360deg)}}

/* =========================================================
   Адаптив общего слоя
   ========================================================= */
@media(max-width:900px){
  .section-wrap{width:calc(100% - 40px)}
  .nav{display:none}
  .menu-toggle{display:flex}
  .site-header__in{width:calc(100% - 40px)}
  .section-head--row{display:block}
  .section-head--row .section-head__text{margin-top:16px;max-width:520px}
  .site-footer__in{grid-template-columns:1fr 1fr}
  .site-footer__about{grid-column:1/-1}
}
@media(max-width:560px){
  .section-wrap{width:calc(100% - 32px)}
  .site-header__in{width:calc(100% - 32px)}
  .brand__mark{width:32px;height:32px}
  .brand__name{font-size:1rem}
  .site-footer__in{grid-template-columns:1fr;gap:26px}
  .site-footer__bottom{flex-direction:column;align-items:flex-start;gap:10px}
}