/* ========================================================
   Mind Craft — design tokens
   Navy/blue + gold pulled directly from the brand mark, on white.
   Display: Golos Text (native Cyrillic, geometric, confident)
   Body:    Manrope
   ======================================================== */
:root{
  --navy-950: #0A1230;
  --navy-900: #0F1B42;
  --navy-800: #16256B;
  --blue-600: #2B46D6;
  --blue-500: #3E5BE8;
  --gold-500: #F5C518;
  --gold-600: #D9A50B;
  --gold-100: #FFF4CC;
  --ink:      #12173B;
  --ink-soft: #4A5178;
  --paper:    #FFFFFF;
  --line:     #E7E9F5;

  --font-display: "Golos Text", "Manrope", sans-serif;
  --font-body: "Manrope", "Golos Text", sans-serif;

  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 8px;

  --shadow-card: 0 20px 45px -20px rgba(15,27,66,0.25);
  --shadow-soft: 0 10px 30px -12px rgba(15,27,66,0.18);

  --ease: cubic-bezier(.22,.9,.32,1);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
h1,h2,h3{ font-family: var(--font-display); margin:0; line-height:1.08; letter-spacing:-0.01em; }
p{ margin:0; }
button{ font-family:inherit; cursor:pointer; border:none; background:none; }

.wrap{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 24px;
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; }
}

/* ---------- reveal-on-scroll ---------- */
.reveal{
  opacity:0;
  transform:translateY(18px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.in-view{ opacity:1; transform:none; }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 26px;
  border-radius:999px;
  font-weight:700;
  font-size:0.95rem;
  white-space:nowrap;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), color .25s var(--ease);
}
.btn.full{ width:100%; }
.btn-gold{
  background: linear-gradient(135deg, var(--gold-500), var(--gold-600));
  color: var(--navy-950);
  box-shadow: 0 12px 30px -10px rgba(245,197,24,0.55);
}
.btn-gold:hover{ transform:translateY(-2px); box-shadow:0 16px 34px -8px rgba(245,197,24,0.65); }
.btn-gold-dark{
  background: var(--navy-950);
  color: var(--gold-500);
}
.btn-gold-dark:hover{ transform:translateY(-2px); background:var(--navy-900); }
.btn-outline{
  background:transparent;
  color:#fff;
  border:1.5px solid rgba(255,255,255,0.35);
}
.btn-outline:hover{ border-color:#fff; background:rgba(255,255,255,0.08); }
.btn-ghost{
  background: rgba(255,255,255,0.08);
  color: var(--navy-950);
  border:1.5px solid var(--line);
  padding:10px 20px;
  font-size:0.88rem;
}
.btn-ghost:hover{ border-color: var(--gold-600); }

/* ============ HEADER ============ */
.site-header{
  position:fixed; top:0; left:0; right:0; z-index:100;
  padding:18px 0;
  transition: padding .3s var(--ease), background .3s var(--ease), box-shadow .3s var(--ease);
}
.site-header.is-scrolled{
  padding:10px 0;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(14px);
  box-shadow: 0 8px 24px -16px rgba(15,27,66,0.35);
}
.header-inner{ display:flex; align-items:center; justify-content:space-between; gap:16px; }
.brand{ display:flex; align-items:center; gap:10px; }
.brand-mark{ width:40px; height:40px; border-radius:10px; }
.brand-text{ display:flex; flex-direction:column; line-height:1.15; }
.brand-name{ font-family:var(--font-display); font-weight:800; font-size:1.05rem; color:var(--navy-950); }
.site-header:not(.is-scrolled) .brand-name{ color:#fff; }
.brand-sub{ font-size:0.68rem; font-weight:600; color:var(--gold-600); text-transform:uppercase; letter-spacing:0.06em; }

.main-nav{ display:flex; align-items:center; gap:28px; }
.main-nav a{ font-weight:600; font-size:0.92rem; color:#fff; opacity:0.85; transition: opacity .2s, color .2s; }
.site-header.is-scrolled .main-nav a{ color:var(--ink); }
.main-nav a:hover{ opacity:1; }

.header-actions{ display:flex; align-items:center; gap:14px; }
.lang-switch{ display:flex; gap:4px; background:rgba(255,255,255,0.12); border-radius:999px; padding:4px; }
.site-header.is-scrolled .lang-switch{ background:var(--paper); border:1px solid var(--line); }
.lang-btn{
  padding:6px 12px; border-radius:999px; font-size:0.78rem; font-weight:700;
  color:#fff; opacity:0.7; transition:.2s;
}
.site-header.is-scrolled .lang-btn{ color:var(--ink-soft); }
.lang-btn.is-active{ background:var(--gold-500); color:var(--navy-950); opacity:1; }

.header-cta{ display:inline-flex; }
.burger{ display:none; width:36px; height:32px; flex-direction:column; justify-content:center; gap:6px; }
.burger span{ display:block; height:2px; width:100%; background:#fff; border-radius:2px; transition:.25s; }
.site-header.is-scrolled .burger span{ background:var(--ink); }

.mobile-nav{
  position:fixed; top:0; right:0; height:100vh; width:78%; max-width:320px;
  background:var(--navy-950); z-index:99;
  display:flex; flex-direction:column; gap:22px;
  padding:110px 32px 32px;
  transform:translateX(100%);
  transition: transform .35s var(--ease);
}
.mobile-nav.is-open{ transform:translateX(0); }
.mobile-nav a{ color:#fff; font-weight:700; font-size:1.1rem; }
.lang-switch--mobile{ margin-top:10px; background:rgba(255,255,255,0.08); align-self:flex-start; }
.lang-switch--mobile .lang-btn{ color:#fff; }

/* ============ HERO ============ */
.hero{
  position:relative;
  background: radial-gradient(120% 140% at 12% -10%, #24399e 0%, transparent 55%),
              linear-gradient(155deg, var(--navy-950) 0%, var(--navy-900) 45%, var(--blue-600) 130%);
  padding:170px 0 100px;
  overflow:hidden;
}
.hero-glow{
  position:absolute; inset:0;
  background: radial-gradient(50% 50% at 85% 20%, rgba(245,197,24,0.18), transparent 70%);
  pointer-events:none;
}
.hero-inner{
  position:relative; z-index:1;
  display:grid; grid-template-columns:1.1fr 0.9fr; align-items:center; gap:40px;
}
.eyebrow{
  display:inline-block; font-size:0.8rem; font-weight:700; letter-spacing:0.08em; text-transform:uppercase;
  color:var(--gold-500); margin-bottom:18px;
  padding:6px 14px; border:1px solid rgba(245,197,24,0.4); border-radius:999px;
}
.eyebrow--dark{ color:var(--gold-600); border-color:rgba(217,165,11,0.35); }
.hero-copy h1{
  color:#fff; font-size:clamp(2.4rem, 4.6vw, 3.6rem); font-weight:900; max-width:14ch;
}
.hero-sub{
  color:rgba(255,255,255,0.82); font-size:1.08rem; max-width:46ch; margin:22px 0 34px; line-height:1.6;
}
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; }
.hero-bot-link{
  display:inline-flex; align-items:center; gap:8px; margin-top:20px;
  color:rgba(255,255,255,0.75); font-size:0.92rem; font-weight:600;
  transition: color .2s, gap .2s;
}
.hero-bot-link:hover{ color:var(--gold-500); gap:11px; }
.hero-bot-icon{ font-size:1.1rem; }

.hero-visual{ display:flex; justify-content:center; }
.synapse-svg{ width:100%; max-width:460px; }

/*
  Цикл (по умолчанию 11s, крутится вечно):
  1) 0%     → 36.36% (4s)  — сборка-пазл: элементы крутятся ПО ЧАСОВОЙ
                              и с замедлением (как будто примагничиваются)
                              останавливаются точно на своих местах
                              (720° = 2 полных оборота, финал = 0°)
  2) 36.36% → 72.73% (4s)  — статичная пауза, всё видно
  3) 72.73% → 81.82% (1s)  — «испарение»: плавно гаснут (opacity → 0)
  4) 81.82% → 100%   (2s)  — пауза, пусто
  → скачком обратно к 0% (снова видимы) и цикл повторяется.

  Хотите другие тайминги — меняйте --cycle И соответствующие % в
  @keyframes ниже (проценты = секунды нужной фазы / --cycle * 100).
*/
:root{
  --cycle: 11s;
}
.synapse-spin{
  transform-origin: 240px 240px;
  animation: spinSettle var(--cycle) infinite;
}
@keyframes spinSettle{
  0%{
    transform:rotate(0deg); opacity:1;
    /* сильное замедление к концу сборки — эффект "примагнитилось на место" */
    animation-timing-function: cubic-bezier(.13,.71,.24,1);
  }
  36.36%{ transform:rotate(720deg); opacity:1; animation-timing-function: linear; } /* собралось и замерло */
  72.73%{ transform:rotate(720deg); opacity:1; animation-timing-function: linear; } /* конец 4s паузы */
  81.82%{ transform:rotate(720deg); opacity:0; animation-timing-function: linear; } /* испарилось */
  100%{   transform:rotate(720deg); opacity:0; }                                    /* конец паузы в пустоте */
}

.synapse-lines .ln{ stroke-width:1.6; }

.synapse-nodes .node circle{
  fill: rgba(43,70,214,0.35);
  stroke: var(--gold-500);
  stroke-width:1.6;
}
.synapse-nodes .node text{
  fill:#fff; font-family:var(--font-display); font-weight:700; font-size:12px; text-anchor:middle;
}

.core-halo{
  fill:none; stroke:var(--gold-500); stroke-width:1.4; opacity:0.55;
  animation: pulse 2.6s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{ r:60; opacity:0.35; }
  50%{ r:70; opacity:0.65; }
}
.core image{ filter: drop-shadow(0 8px 18px rgba(0,0,0,0.35)); }

/* ============ FEATURES ============ */
.features{ padding:88px 0; background:var(--paper); }
.features-grid{
  display:grid; grid-template-columns:repeat(4,1fr); gap:22px;
}
.feature-card{
  padding:30px 24px; border-radius:var(--radius-lg); background:#fff;
  border:1px solid var(--line); box-shadow:var(--shadow-soft);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.feature-card:hover{ transform:translateY(-6px); box-shadow:var(--shadow-card); }
.feature-icon{
  width:52px; height:52px; border-radius:14px; margin-bottom:18px;
  background: linear-gradient(135deg, var(--gold-100), #fff);
  display:flex; align-items:center; justify-content:center;
}
.feature-icon svg{ width:26px; height:26px; fill:var(--navy-900); }
.feature-card h3{ font-size:1.05rem; font-weight:800; margin-bottom:8px; }
.feature-card p{ font-size:0.92rem; color:var(--ink-soft); line-height:1.55; }

/* ============ COURSES ============ */
.courses{ padding:100px 0; background:var(--navy-950); color:#fff; }
.courses h2{
  color:#fff; font-size:clamp(1.9rem, 3.4vw, 2.6rem); font-weight:800; margin-bottom:34px; max-width:20ch;
}
.course-tabs{ display:flex; gap:10px; flex-wrap:wrap; margin-bottom:40px; }
.tab-btn{
  padding:10px 20px; border-radius:999px; font-size:0.86rem; font-weight:700;
  color:rgba(255,255,255,0.7); border:1px solid rgba(255,255,255,0.18);
  transition: all .25s var(--ease);
}
.tab-btn:hover{ color:#fff; border-color:rgba(255,255,255,0.4); }
.tab-btn.is-active{ background:var(--gold-500); color:var(--navy-950); border-color:var(--gold-500); }

.course-grid{
  display:grid; grid-template-columns:repeat(3,1fr); gap:20px;
}
.course-card{
  background: linear-gradient(160deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02));
  border:1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding:26px;
  transition: transform .3s var(--ease), border-color .3s var(--ease), background .3s var(--ease);
}
.course-card.is-hidden{ display:none; }
.course-card:hover{
  transform:translateY(-6px);
  border-color: rgba(245,197,24,0.5);
  background: linear-gradient(160deg, rgba(245,197,24,0.1), rgba(255,255,255,0.02));
}
.course-top{ display:flex; align-items:center; gap:14px; margin-bottom:12px; }
.course-badge{
  flex:0 0 auto; min-width:44px; height:36px; padding:0 10px; border-radius:10px;
  background:rgba(245,197,24,0.15); color:var(--gold-500);
  display:flex; align-items:center; justify-content:center; font-weight:800; font-size:0.72rem;
}
.course-top h3{ font-size:1.08rem; font-weight:700; color:#fff; }
.course-desc{ font-size:0.9rem; color:rgba(255,255,255,0.68); line-height:1.6; }

/* ============ GUARANTEE ============ */
.guarantee{ background: linear-gradient(120deg, var(--gold-100), #fff 60%); padding:64px 0; }
.guarantee-inner{
  display:grid; grid-template-columns:auto 1fr auto; align-items:center; gap:28px;
  background: var(--navy-950); border-radius: var(--radius-lg);
  padding:44px 46px; box-shadow: var(--shadow-card);
}
.guarantee-icon{
  width:64px; height:64px; border-radius:16px; background:rgba(245,197,24,0.15);
  display:flex; align-items:center; justify-content:center; flex:0 0 auto;
}
.guarantee-icon svg{ width:32px; height:32px; fill:var(--gold-500); }
.guarantee-copy h2{ color:#fff; font-size:clamp(1.3rem,2.4vw,1.7rem); margin-bottom:10px; max-width:26ch; }
.guarantee-copy p{ color:rgba(255,255,255,0.75); line-height:1.6; max-width:56ch; font-size:0.96rem; }

/* ============ PROCESS ============ */
.process{ padding:100px 0; background:var(--paper); }
.process h2{ font-size:clamp(1.9rem,3.4vw,2.6rem); margin-bottom:50px; max-width:20ch; }
.process-steps{ display:grid; grid-template-columns:1fr auto 1fr auto 1fr; align-items:start; gap:14px; }
.process-step{ text-align:left; }
.step-num{
  display:inline-block; font-family:var(--font-display); font-weight:900; font-size:1.6rem;
  color:var(--gold-600); margin-bottom:14px;
}
.process-step h3{ font-size:1.1rem; margin-bottom:10px; }
.process-step p{ color:var(--ink-soft); font-size:0.92rem; line-height:1.6; }
.process-line{ height:2px; margin-top:32px; background:repeating-linear-gradient(90deg, var(--line) 0 8px, transparent 8px 14px); }

/* ============ CONTACT ============ */
.contact{ background:var(--navy-950); padding:100px 0; color:#fff; }
.contact-inner{ display:grid; grid-template-columns:1.1fr 0.7fr; gap:50px; align-items:center; }
.contact-copy h2{ color:#fff; font-size:clamp(1.8rem,3.2vw,2.4rem); margin:14px 0 18px; max-width:16ch; }
.contact-text{ color:rgba(255,255,255,0.72); line-height:1.6; max-width:48ch; margin-bottom:32px; font-size:0.98rem; }
.contact-methods{ display:grid; grid-template-columns:1fr 1fr; gap:14px; }
.contact-method{
  display:flex; align-items:center; gap:10px; padding:14px 16px;
  border:1px solid rgba(255,255,255,0.14); border-radius:var(--radius-md);
  font-weight:600; font-size:0.92rem; transition:.25s;
}
.contact-method:hover{ border-color:var(--gold-500); background:rgba(245,197,24,0.06); }
.cm-icon{ font-size:1.1rem; }
.contact-method--bot{
  grid-column: 1 / -1;
  border-color: rgba(245,197,24,0.35);
  background: rgba(245,197,24,0.05);
}

.contact-card{
  background:#fff; color:var(--ink); border-radius:var(--radius-lg);
  padding:40px 34px; text-align:center; box-shadow:var(--shadow-card);
}
.contact-logo{ width:64px; height:64px; margin:0 auto 16px; border-radius:14px; }
.contact-card h3{ font-size:1.3rem; margin-bottom:4px; }
.contact-card p{ color:var(--ink-soft); margin-bottom:24px; }
.contact-card .btn{ margin-bottom:12px; }
.contact-card-secondary{ margin-bottom:0 !important; }

/* ============ FOOTER ============ */
.site-footer{ background:var(--navy-950); border-top:1px solid rgba(255,255,255,0.08); padding:28px 0; }
.footer-inner{ display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:14px; }
.footer-brand{ display:flex; align-items:center; gap:10px; color:#fff; font-weight:800; font-family:var(--font-display); }
.brand-mark--footer{ width:28px; height:28px; border-radius:8px; }
.footer-copy{ color:rgba(255,255,255,0.5); font-size:0.82rem; }
.footer-socials{ display:flex; gap:18px; }
.footer-socials a{ color:rgba(255,255,255,0.7); font-size:0.86rem; font-weight:600; }
.footer-socials a:hover{ color:var(--gold-500); }

/* ============ FLOATING ACTION BUTTONS ============ */
.fab{
  position:fixed; right:22px; z-index:90;
  width:56px; height:56px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  font-size:1.4rem; box-shadow:0 14px 30px -10px rgba(15,27,66,0.45);
  transition: transform .25s var(--ease);
}
.fab:hover{ transform:scale(1.08); }
.fab--call{
  bottom:22px;
  background: linear-gradient(135deg, var(--gold-500), var(--gold-600));
  box-shadow:0 14px 30px -10px rgba(245,197,24,0.6);
  animation: fabPulse 2.8s ease-in-out infinite;
}
.fab--bot{
  bottom:88px;
  background: linear-gradient(135deg, var(--blue-500), var(--navy-800));
  border:1.5px solid rgba(245,197,24,0.5);
}
@keyframes fabPulse{
  0%,100%{ transform:scale(1); }
  50%{ transform:scale(1.07); }
}
@media (max-width:620px){
  .fab{ width:50px; height:50px; font-size:1.25rem; right:16px; }
  .fab--call{ bottom:16px; }
  .fab--bot{ bottom:74px; }
}

/* ============ RESPONSIVE ============ */
@media (max-width: 980px){
  .main-nav{ display:none; }
  .burger{ display:flex; }
  .hero-inner{ grid-template-columns:1fr; text-align:center; }
  .hero-copy{ order:1; }
  .hero-visual{ order:0; max-width:340px; margin:0 auto; }
  .hero-actions{ justify-content:center; }
  .features-grid{ grid-template-columns:repeat(2,1fr); }
  .course-grid{ grid-template-columns:repeat(2,1fr); }
  .guarantee-inner{ grid-template-columns:1fr; text-align:center; }
  .guarantee-icon{ margin:0 auto; }
  .process-steps{ grid-template-columns:1fr; gap:30px; }
  .process-line{ display:none; }
  .contact-inner{ grid-template-columns:1fr; }
  .header-cta{ display:none; }
}
@media (max-width: 620px){
  .features-grid{ grid-template-columns:1fr; }
  .course-grid{ grid-template-columns:1fr; }
  .contact-methods{ grid-template-columns:1fr; }
  .guarantee-inner{ padding:32px 24px; }
  .hero{ padding:150px 0 80px; }
}