/* ==========================================================================
   Экран продукта «ИКС Агент» на странице проекта xtlb.ru
   --------------------------------------------------------------------------
   Оформление продукта отличается от сайта: чёрный фон, оранжево-янтарный
   акцент. Все правила лежат внутри .ia и не задевают дизайн-систему.
   Сброс — через :where(), иначе `.ia p` (0,1,1) перебивает классы вида
   .ia-lead (0,1,0) и затирает отступы.
   ========================================================================== */

.ia{
  --ia-bg:#08090b;
  --ia-surface:#121316;
  --ia-surface-2:#1a1c21;
  --ia-line:rgba(245,244,241,.13);
  --ia-orange:#ff7014;
  --ia-orange-2:#ff9b36;
  --ia-amber:#ffc83d;
  --ia-green:#8fd63f;
  --ia-text:#f4f4f1;
  --ia-dim:#a5a7ad;
  --ia-radius:18px;

  position:relative;
  background:var(--ia-bg);
  color:var(--ia-text);
  font-family:'Manrope','Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow:hidden;
}

.ia *,.ia *::before,.ia *::after{box-sizing:border-box}
.ia :where(p){margin:0}
.ia :where(ul,ol){margin:0;padding:0;list-style:none}
.ia :where(a){color:inherit;text-decoration:none}
.ia :where(img,svg){display:block;max-width:100%}
.ia :where(h1,h2,h3,h4){margin:0}
.ia strong{font-weight:800}

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

/* ---------- фон ---------- */
.ia-bg{position:absolute;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(ellipse 70% 45% at 78% 2%, rgba(255,112,20,.22), transparent 60%),
    radial-gradient(ellipse 60% 40% at 8% 96%, rgba(255,200,61,.10), transparent 60%),
    linear-gradient(rgba(245,244,241,.03) 1px, transparent 1px) 0 0/ 72px 72px,
    linear-gradient(90deg, rgba(245,244,241,.03) 1px, transparent 1px) 0 0/ 72px 72px;
}
.ia-glow{position:absolute;width:560px;height:560px;right:-160px;top:60px;z-index:0;
  border-radius:50%;filter:blur(30px);
  background:radial-gradient(circle, rgba(255,112,20,.2), transparent 62%);
  animation:ia-drift 14s ease-in-out infinite alternate}
@keyframes ia-drift{from{transform:translate3d(0,0,0)}to{transform:translate3d(-36px,44px,0) scale(1.1)}}

/* ---------- типографика ---------- */
.ia-kicker{margin:0 0 16px;font-size:12.5px;font-weight:800;letter-spacing:.22em;
  color:var(--ia-orange);text-transform:uppercase}
.ia-title{margin:0 0 18px;font-size:clamp(28px,4vw,44px);line-height:1.12;
  font-weight:800;letter-spacing:-.02em;max-width:20ch}
.ia-sub{margin:0 0 40px;color:var(--ia-dim);font-size:17px;max-width:68ch}
.ia-note{margin:28px 0 0;color:var(--ia-dim);font-size:15px;font-style:italic}
.ia-note--center{text-align:center;font-style:normal;font-weight:700;color:var(--ia-text);
  font-size:19px;margin-top:44px;max-width:60ch;margin-left:auto;margin-right:auto}
.ia-hl{color:var(--ia-amber)}

/* ---------- кнопки ---------- */
.ia-btn{display:inline-flex;align-items:center;justify-content:center;
  padding:14px 28px;border-radius:999px;border:1px solid transparent;
  font-family:inherit;font-size:15px;font-weight:800;cursor:pointer;white-space:nowrap;
  transition:transform .18s, box-shadow .25s, background .25s, border-color .25s, color .25s}
.ia-btn--primary{background:linear-gradient(120deg,var(--ia-orange),var(--ia-amber));
  color:#160a02;box-shadow:0 12px 30px rgba(255,112,20,.3)}
.ia-btn--primary:hover{transform:translateY(-2px);box-shadow:0 18px 42px rgba(255,112,20,.44)}
.ia-btn--ghost{background:transparent;border-color:rgba(245,244,241,.28);color:var(--ia-text)}
.ia-btn--ghost:hover{border-color:var(--ia-orange);color:var(--ia-orange);transform:translateY(-2px)}
.ia-btn--lg{padding:17px 42px;font-size:17px}

/* ---------- первый экран ---------- */
.ia-hero{padding:84px 0 30px;position:relative;z-index:1}
.ia-hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.ia-hero h1{margin:0 0 22px;font-size:clamp(30px,4.6vw,50px);line-height:1.08;
  font-weight:800;letter-spacing:-.02em}
.ia-lead{margin:0 0 28px;font-size:18px;color:var(--ia-dim);max-width:50ch}
.ia-chips{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 34px;padding:0}
.ia-chip{display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:8px;
  background:linear-gradient(120deg,var(--ia-orange),#e2650f);color:#160a02;
  font-size:12px;font-weight:800;letter-spacing:.09em;text-transform:uppercase}
.ia-hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.ia-hero-visual{position:relative}
.ia-badge{
  position:relative;padding:34px 28px;border-radius:var(--ia-radius);text-align:center;
  border:1px solid rgba(255,155,54,.3);
  background:linear-gradient(165deg,rgba(255,112,20,.18),rgba(18,19,22,.9));
  box-shadow:0 30px 70px rgba(0,0,0,.6)}
.ia-badge__mark{display:flex;align-items:baseline;justify-content:center;gap:8px;margin-bottom:6px}
.ia-badge__iks{font-size:44px;font-weight:800;letter-spacing:-.02em;color:#fff;
  text-shadow:0 0 30px rgba(255,155,54,.6)}
.ia-badge__agent{font-size:26px;font-weight:800;letter-spacing:.04em;color:var(--ia-orange-2)}
.ia-badge__line{height:2px;width:70px;margin:14px auto;
  background:linear-gradient(90deg,transparent,var(--ia-orange),transparent)}
.ia-badge__tag{font-size:13.5px;color:var(--ia-dim);line-height:1.5}

/* ---------- секции ---------- */
.ia-sec{padding:76px 0;position:relative;z-index:1}
.ia-sec + .ia-sec{border-top:1px solid rgba(245,244,241,.06)}
.ia-grid{display:grid;gap:18px}
.ia-grid-3{grid-template-columns:repeat(3,1fr)}
.ia-grid-2{grid-template-columns:repeat(2,1fr)}

.ia-card{position:relative;padding:26px 24px;border-radius:var(--ia-radius);
  background:linear-gradient(160deg,var(--ia-surface-2),var(--ia-surface));
  border:1px solid var(--ia-line);
  transition:transform .25s, border-color .25s, box-shadow .25s}
.ia-card::before{content:"";position:absolute;left:0;top:24px;bottom:24px;width:3px;
  border-radius:0 3px 3px 0;background:var(--ia-orange)}
.ia-card:hover{transform:translateY(-4px);border-color:rgba(255,112,20,.45);
  box-shadow:0 24px 60px rgba(0,0,0,.55)}
.ia-card h3{margin:0 0 9px;font-size:18.5px;font-weight:800;line-height:1.3}
.ia-card p{margin:0;color:var(--ia-dim);font-size:15px}
.ia-card--green::before{background:var(--ia-green)}
.ia-card--amber::before{background:var(--ia-amber)}
.ia-card--muted::before{background:#5c6068}
.ia-card--green:hover,.ia-card--amber:hover,.ia-card--muted:hover{border-color:rgba(255,155,54,.4)}

/* ---------- этапы стройки ---------- */
.ia-track{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:8px}
.ia-step{position:relative;padding:22px 18px;border-radius:14px;
  background:linear-gradient(160deg,var(--ia-surface-2),#0d0e11);
  border:1px solid var(--ia-line);transition:transform .25s,border-color .25s}
.ia-step:hover{transform:translateY(-4px);border-color:rgba(255,112,20,.45)}
.ia-step__n{display:block;font-size:12px;font-weight:800;letter-spacing:.14em;
  color:var(--ia-orange);margin-bottom:8px}
.ia-step__t{display:block;font-size:16px;font-weight:700;line-height:1.3}
.ia-step--done{background:linear-gradient(160deg,rgba(143,214,63,.14),#0d0e11);
  border-color:rgba(143,214,63,.35)}
.ia-step--done .ia-step__n{color:var(--ia-green)}
.ia-step--now{background:linear-gradient(160deg,rgba(255,112,20,.18),#0d0e11);
  border-color:rgba(255,112,20,.5)}
.ia-step--now .ia-step__n{color:var(--ia-amber)}

/* ---------- нумерованные шаги ---------- */
.ia-flow{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.ia-flow__item{padding:24px 22px;border-radius:var(--ia-radius);
  border:1px solid var(--ia-line);background:linear-gradient(160deg,var(--ia-surface-2),var(--ia-surface));
  transition:transform .25s,border-color .25s}
.ia-flow__item:hover{transform:translateY(-4px);border-color:rgba(255,112,20,.45)}
.ia-flow__n{display:block;font-size:22px;font-weight:800;color:var(--ia-orange);margin-bottom:10px}
.ia-flow__t{display:block;font-size:16.5px;font-weight:800;margin-bottom:7px;line-height:1.3}
.ia-flow__d{display:block;font-size:14.5px;color:var(--ia-dim);line-height:1.5}

/* ---------- чат ---------- */
.ia-chat{display:flex;flex-direction:column;gap:12px;max-width:640px;margin-top:8px}
.ia-msg{max-width:78%;padding:14px 18px;border-radius:16px;font-size:15px;line-height:1.45}
.ia-msg--in{align-self:flex-start;background:#1d1f25;border:1px solid var(--ia-line);
  border-bottom-left-radius:5px}
.ia-msg--out{align-self:flex-end;background:linear-gradient(120deg,var(--ia-orange),#e2650f);
  color:#160a02;border-bottom-right-radius:5px}
.ia-msg__who{display:block;font-size:11px;font-weight:800;letter-spacing:.12em;
  text-transform:uppercase;opacity:.65;margin-bottom:5px}

/* ---------- финал ---------- */
.ia-cta{text-align:center;padding:96px 0}
.ia-cta .ia-title{max-width:none;margin-left:auto;margin-right:auto}
.ia-cta-actions{display:flex;justify-content:center}
.ia-cta-tag{margin:34px 0 0;color:var(--ia-dim);font-size:15px}

/* ---------- появление ---------- */
.ia-reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
.ia-reveal.ia-is-in{opacity:1;transform:none}

/* ---------- адаптив ---------- */
@media (max-width:980px){
  .ia-track{grid-template-columns:repeat(2,1fr)}
  .ia-flow{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .ia-hero-inner{grid-template-columns:1fr;text-align:center}
  .ia-lead{margin-left:auto;margin-right:auto}
  .ia-chips,.ia-hero-actions,.ia-cta-actions{justify-content:center}
  .ia-hero-visual{order:-1}
  .ia-grid-3{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .ia-sec{padding:56px 0}
  .ia-hero{padding:52px 0 20px}
  .ia-grid-3,.ia-grid-2,.ia-track,.ia-flow{grid-template-columns:1fr}
  .ia-card{padding:24px 20px}
  .ia-btn{width:100%}
  .ia-btn--lg{width:auto;min-width:220px}
  .ia-cta{padding:64px 0}
}

@media (prefers-reduced-motion:reduce){
  .ia *{animation:none!important;transition:none!important}
  .ia-reveal{opacity:1;transform:none}
}