/* ===== Тема и переменные ===== */
:root{
  --accent-1:#7c5cff;
  --accent-2:#22d3ee;
  --accent-3:#f5c518;         /* фирменный жёлтый 1С */
  --grad:linear-gradient(135deg,var(--accent-1),var(--accent-2));
  --grad-warm:linear-gradient(135deg,var(--accent-3),#ff8a3d);
  --radius:18px;
  --radius-lg:26px;
  --maxw:1180px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow:0 20px 50px -20px rgba(8,12,28,.55);
  --font:'Manrope',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,monospace;
}
html[data-theme="dark"]{
  --bg:#0b0f1a;
  --bg-2:#0f1526;
  --surface:rgba(255,255,255,.045);
  --surface-solid:#121a2e;
  --border:rgba(255,255,255,.09);
  --border-strong:rgba(255,255,255,.16);
  --text:#eaf0ff;
  --muted:#9aa6c4;
  --header-bg:rgba(11,15,26,.72);
  --chip:rgba(255,255,255,.05);
  color-scheme:dark;
}
html[data-theme="light"]{
  --bg:#f4f6fc;
  --bg-2:#eef1fa;
  --surface:rgba(255,255,255,.75);
  --surface-solid:#ffffff;
  --border:rgba(15,23,42,.09);
  --border-strong:rgba(15,23,42,.16);
  --text:#0f172a;
  --muted:#5a6683;
  --header-bg:rgba(244,246,252,.78);
  --chip:rgba(15,23,42,.045);
  --shadow:0 24px 50px -24px rgba(30,41,90,.32);
  color-scheme:light;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  transition:background .5s var(--ease),color .5s var(--ease);
}
a{color:inherit;text-decoration:none}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 22px}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ===== Аврора-фон ===== */
.aurora{position:fixed;inset:0;z-index:-1;overflow:hidden;background:
  radial-gradient(1200px 700px at 80% -10%,rgba(124,92,255,.16),transparent 60%),
  radial-gradient(900px 600px at 0% 20%,rgba(34,211,238,.12),transparent 55%),
  var(--bg);
  transition:background .5s var(--ease)}
.blob{position:absolute;border-radius:50%;filter:blur(70px);opacity:.55;mix-blend-mode:screen;animation:float 22s var(--ease) infinite alternate}
html[data-theme="light"] .blob{opacity:.4;mix-blend-mode:multiply}
.b1{width:520px;height:520px;background:var(--accent-1);top:-140px;left:-90px}
.b2{width:460px;height:460px;background:var(--accent-2);top:20%;right:-120px;animation-delay:-6s}
.b3{width:400px;height:400px;background:var(--accent-3);bottom:-160px;left:35%;animation-delay:-12s;opacity:.35}
@keyframes float{0%{transform:translate(0,0) scale(1)}50%{transform:translate(40px,-30px) scale(1.1)}100%{transform:translate(-30px,40px) scale(.95)}}
.grid-overlay{position:absolute;inset:0;background-image:
  linear-gradient(var(--border) 1px,transparent 1px),
  linear-gradient(90deg,var(--border) 1px,transparent 1px);
  background-size:56px 56px;mask-image:radial-gradient(circle at 50% 30%,#000,transparent 75%);opacity:.5}

/* ===== Шапка ===== */
.header{position:fixed;top:0;left:0;right:0;z-index:50;transition:.4s var(--ease)}
.header.scrolled{backdrop-filter:blur(16px);background:var(--header-bg);border-bottom:1px solid var(--border)}
.header__inner{display:flex;align-items:center;gap:18px;height:70px}
.logo{display:flex;align-items:center;gap:11px;font-weight:800;font-size:1.05rem;letter-spacing:-.02em}
.logo__mark{display:grid;place-items:center;width:38px;height:38px;border-radius:11px;background:var(--grad-warm);color:#111;font-weight:800;font-size:.95rem;box-shadow:0 8px 20px -8px rgba(245,197,24,.7)}
.nav{display:flex;gap:6px;margin-left:auto}
.nav a{padding:9px 14px;border-radius:10px;color:var(--muted);font-weight:600;font-size:.94rem;transition:.25s var(--ease)}
.nav a:hover{color:var(--text);background:var(--chip)}
.header__actions{display:flex;align-items:center;gap:10px;margin-left:8px}

.theme-toggle{position:relative;width:42px;height:42px;border-radius:12px;border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;display:grid;place-items:center;transition:.3s var(--ease)}
.theme-toggle:hover{border-color:var(--border-strong);transform:translateY(-2px)}
.theme-toggle svg{position:absolute;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;transition:.4s var(--ease)}
html[data-theme="dark"] .icon-sun{opacity:0;transform:rotate(-90deg) scale(.5)}
html[data-theme="dark"] .icon-moon{opacity:1;transform:rotate(0) scale(1)}
html[data-theme="light"] .icon-sun{opacity:1;transform:rotate(0) scale(1)}
html[data-theme="light"] .icon-moon{opacity:0;transform:rotate(90deg) scale(.5)}

/* ===== Кнопки ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:11px 20px;border-radius:12px;font-weight:700;font-size:.94rem;cursor:pointer;border:1px solid transparent;transition:.28s var(--ease);white-space:nowrap;font-family:inherit}
.btn--primary{background:var(--grad);color:#fff;box-shadow:0 12px 28px -12px rgba(124,92,255,.75)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 18px 36px -12px rgba(124,92,255,.9)}
.btn--ghost{background:var(--surface);border-color:var(--border);color:var(--text)}
.btn--ghost:hover{border-color:var(--border-strong);transform:translateY(-2px)}
.btn--lg{padding:14px 26px;font-size:1rem;border-radius:14px}
.btn--block{width:100%}
.btn--cabinet{}
@media(max-width:900px){.btn--cta,.btn--cabinet{display:none}}

.burger{display:none;flex-direction:column;gap:5px;width:42px;height:42px;border:1px solid var(--border);background:var(--surface);border-radius:12px;cursor:pointer;padding:12px}
.burger span{height:2px;background:var(--text);border-radius:2px;transition:.3s var(--ease)}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== HERO ===== */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;padding:120px 0 80px}
.hero__inner{text-align:center;max-width:900px}
.hero__badge{display:inline-flex;align-items:center;gap:9px;padding:8px 16px;border-radius:100px;background:var(--surface);border:1px solid var(--border);font-size:.86rem;font-weight:600;color:var(--muted);margin-bottom:26px}
.pulse-dot{width:8px;height:8px;border-radius:50%;background:#31d17e;box-shadow:0 0 0 0 rgba(49,209,126,.6);animation:pulse 2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 9px rgba(49,209,126,0)}100%{box-shadow:0 0 0 0 rgba(49,209,126,0)}}
.hero__title{font-size:clamp(2.1rem,5.5vw,4rem);line-height:1.07;font-weight:800;letter-spacing:-.03em;margin-bottom:22px}
.hero__lead{font-size:clamp(1.02rem,2vw,1.22rem);color:var(--muted);max-width:660px;margin:0 auto 34px}
.hero__lead b{color:var(--text)}
.hero__cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:60px}

.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;max-width:900px;margin:0 auto}
.stat{padding:24px 16px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--border);backdrop-filter:blur(10px)}
.stat__num{font-family:var(--mono);font-size:clamp(1.7rem,3.5vw,2.5rem);font-weight:700;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.stat__label{font-size:.82rem;color:var(--muted);margin-top:8px}

.scroll-hint{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);width:26px;height:42px;border:2px solid var(--border-strong);border-radius:20px;display:grid;justify-items:center;padding-top:7px}
.scroll-hint span{width:4px;height:8px;background:var(--muted);border-radius:2px;animation:scrolldot 1.6s infinite}
@keyframes scrolldot{0%{opacity:0;transform:translateY(-4px)}40%{opacity:1}80%,100%{opacity:0;transform:translateY(10px)}}

/* ===== Секции ===== */
.section{padding:90px 0;position:relative}
.section__head{max-width:680px;margin:0 auto 52px;text-align:center}
.eyebrow{display:inline-block;font-family:var(--mono);font-size:.78rem;font-weight:700;letter-spacing:.15em;text-transform:uppercase;color:var(--accent-2);margin-bottom:14px}
.section__title{font-size:clamp(1.7rem,3.6vw,2.6rem);font-weight:800;letter-spacing:-.025em;line-height:1.12}
.section__sub{color:var(--muted);margin-top:16px;font-size:1.04rem}

/* ===== Карточки ===== */
.cards{display:grid;gap:20px}
.cards--4{grid-template-columns:repeat(4,1fr)}
.cards--3{grid-template-columns:repeat(3,1fr)}
.card{position:relative;padding:28px 24px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--border);backdrop-filter:blur(10px);transition:.35s var(--ease);overflow:hidden}
.card::before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;background:var(--grad);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:.35s var(--ease)}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.card:hover::before{opacity:.9}
.card__ico{font-size:1.9rem;margin-bottom:14px;display:block}
.card h3{font-size:1.12rem;font-weight:700;margin-bottom:9px;letter-spacing:-.01em}
.card p{color:var(--muted);font-size:.95rem}
.card__tag{display:inline-block;margin-top:14px;font-family:var(--mono);font-size:.74rem;color:var(--accent-2);border:1px solid var(--border);border-radius:8px;padding:3px 9px}

/* ===== Чипы (технологии) ===== */
.stack-block{margin-bottom:34px}
.stack-block__title{font-size:1rem;color:var(--muted);font-weight:600;margin-bottom:16px;text-align:center}
.chips{display:flex;flex-wrap:wrap;gap:11px;justify-content:center}
.chip{padding:10px 18px;border-radius:100px;background:var(--chip);border:1px solid var(--border);font-weight:600;font-size:.92rem;transition:.3s var(--ease);cursor:default}
.chip:hover{border-color:var(--accent-1);transform:translateY(-3px);color:var(--text)}
.chip--star{background:var(--grad-warm);color:#1a1206;border:none;box-shadow:0 8px 18px -10px rgba(245,197,24,.7)}

/* ===== Таймлайн ===== */
.timeline{position:relative;max-width:840px;margin:0 auto;padding-left:6px}
.timeline::before{content:"";position:absolute;left:14px;top:8px;bottom:8px;width:2px;background:linear-gradient(var(--accent-1),var(--accent-2),transparent)}
.tl-item{position:relative;padding:0 0 34px 52px}
.tl-item::before{content:"";position:absolute;left:7px;top:6px;width:16px;height:16px;border-radius:50%;background:var(--bg);border:3px solid var(--accent-1);box-shadow:0 0 0 4px var(--surface);transition:.3s var(--ease)}
.tl-item:hover::before{border-color:var(--accent-2);transform:scale(1.15)}
.tl-period{font-family:var(--mono);font-size:.8rem;color:var(--accent-2);font-weight:700}
.tl-company{font-size:1.18rem;font-weight:800;margin:4px 0 2px;letter-spacing:-.01em}
.tl-role{color:var(--muted);font-weight:600;font-size:.92rem;margin-bottom:10px}
.tl-desc{color:var(--muted);font-size:.94rem}
.tl-desc b{color:var(--text);font-weight:600}

/* ===== Почему я ===== */
.section--why{background:var(--bg-2);transition:background .5s var(--ease)}
.why-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;max-width:900px;margin:0 auto}
.why-item{display:flex;gap:15px;padding:20px 22px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--border)}
.why-item__ico{flex:0 0 auto;width:40px;height:40px;border-radius:11px;background:var(--grad);display:grid;place-items:center;font-size:1.15rem}
.why-item b{display:block;margin-bottom:3px}
.why-item span{color:var(--muted);font-size:.92rem}

/* ===== Контакты ===== */
.section--contact{padding-bottom:100px}
.contact-card{display:grid;grid-template-columns:1fr 1fr;gap:44px;padding:48px;border-radius:var(--radius-lg);background:var(--surface);border:1px solid var(--border);backdrop-filter:blur(14px);box-shadow:var(--shadow)}
.contact-card .section__title{text-align:left}
.contact-card .eyebrow{margin-top:0}
.contact-list{margin-top:26px;display:flex;flex-direction:column;gap:12px}
.contact-item{display:flex;align-items:center;gap:14px;padding:13px 16px;border-radius:14px;border:1px solid var(--border);background:var(--chip);transition:.3s var(--ease)}
a.contact-item:hover{border-color:var(--accent-1);transform:translateX(4px)}
.contact-item__ico{font-size:1.3rem}
.contact-item b{display:block;font-size:1rem}
.contact-item small{color:var(--muted);font-size:.82rem}

.contact-form{display:flex;flex-direction:column;gap:16px}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-size:.85rem;font-weight:600;color:var(--muted)}
.field input,.field textarea{width:100%;padding:13px 15px;border-radius:12px;border:1px solid var(--border);background:var(--surface-solid);color:var(--text);font-family:inherit;font-size:.96rem;transition:.25s var(--ease);resize:vertical}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent-1);box-shadow:0 0 0 3px rgba(124,92,255,.18)}
.contact-form__hint{font-size:.8rem;color:var(--muted);text-align:center}

/* ===== Футер ===== */
.footer{border-top:1px solid var(--border);padding:36px 0;background:var(--bg-2);transition:background .5s var(--ease)}
.footer__inner{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.footer__brand{display:flex;align-items:center;gap:13px}
.footer__brand b{display:block;font-size:1rem}
.footer__brand small{color:var(--muted);font-size:.82rem}
.footer__links{display:flex;gap:22px;flex-wrap:wrap}
.footer__links a{color:var(--muted);font-weight:600;font-size:.92rem;transition:.25s}
.footer__links a:hover{color:var(--text)}
.footer__copy{color:var(--muted);font-size:.82rem;width:100%;text-align:center;border-top:1px solid var(--border);padding-top:20px;margin-top:8px}

/* ===== Модалка ===== */
.modal{position:fixed;inset:0;z-index:100;display:none;align-items:center;justify-content:center;padding:20px}
.modal.open{display:flex;animation:fade .3s var(--ease)}
.modal__backdrop{position:absolute;inset:0;background:rgba(4,7,15,.6);backdrop-filter:blur(6px)}
.modal__dialog{position:relative;width:100%;max-width:400px;padding:38px 32px;border-radius:var(--radius-lg);background:var(--surface-solid);border:1px solid var(--border);box-shadow:var(--shadow);animation:pop .35s var(--ease)}
.modal__close{position:absolute;top:16px;right:16px;width:34px;height:34px;border-radius:10px;border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;font-size:.9rem}
.modal__mark{width:52px;height:52px;border-radius:15px;background:var(--grad-warm);color:#111;font-weight:800;display:grid;place-items:center;font-size:1.1rem;margin-bottom:18px}
.modal__dialog h3{font-size:1.4rem;font-weight:800;letter-spacing:-.02em}
.modal__sub{color:var(--muted);font-size:.92rem;margin:8px 0 22px}
.login-form{display:flex;flex-direction:column;gap:15px}
.login-form__note{font-size:.82rem;color:var(--muted);text-align:center;line-height:1.5}
@keyframes fade{from{opacity:0}to{opacity:1}}
@keyframes pop{from{opacity:0;transform:translateY(20px) scale(.97)}to{opacity:1;transform:none}}

/* ===== Тост ===== */
.toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%) translateY(120px);background:var(--surface-solid);border:1px solid var(--border-strong);color:var(--text);padding:14px 22px;border-radius:14px;box-shadow:var(--shadow);font-weight:600;font-size:.92rem;z-index:200;transition:.4s var(--ease);opacity:0}
.toast.show{transform:translateX(-50%) translateY(0);opacity:1}

/* ===== Reveal-анимация ===== */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.blob{animation:none}}

/* ===== Адаптив ===== */
@media(max-width:980px){
  .cards--4{grid-template-columns:repeat(2,1fr)}
  .cards--3{grid-template-columns:repeat(2,1fr)}
  .contact-card{grid-template-columns:1fr;padding:34px}
  .stats{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:760px){
  .nav{position:fixed;top:70px;left:0;right:0;flex-direction:column;background:var(--header-bg);backdrop-filter:blur(16px);border-bottom:1px solid var(--border);padding:16px 22px;gap:4px;transform:translateY(-120%);transition:.4s var(--ease);margin-left:0}
  .nav.open{transform:translateY(0)}
  .nav a{padding:13px}
  .header__actions{margin-left:auto}
  .burger{display:flex}
  .why-grid{grid-template-columns:1fr}
}
@media(max-width:480px){
  .cards--4,.cards--3{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr;gap:11px}
  .stat{padding:18px 12px}
  .contact-card{padding:24px}
  .section{padding:66px 0}
}