/* ============================================================
   Системные Технологии — dark theme
   Palette locked to brand logo (teal) + electric blue.
   Type: Inter (UI/body) + Times New Roman italic (display accent).
   ============================================================ */

:root{
  /* surfaces */
  --bg:        #0B0F14;   /* main background */
  --bg-alt:    #0E141C;   /* alternating sections (subtle lift) */
  --surface:   #151B23;   /* cards / panels */
  --surface-2: #1B232E;   /* hover / elevated */

  /* brand */
  --teal:      #1ECAD3;   /* primary brand — matches logo */
  --teal-dim:  #16A6AE;
  --teal-soft: rgba(30,202,211,.12);
  --blue:      #2F80ED;   /* buttons / links */
  --blue-600:  #2569d6;

  /* text */
  --text:      #F5F7FA;   /* primary text */
  --muted:     #9BA7B4;   /* secondary text */
  --faint:     #6B7787;   /* tertiary / captions */

  /* lines */
  --line:        rgba(255,255,255,.08);
  --line-strong: rgba(255,255,255,.15);

  /* gradients */
  --ai-grad:   linear-gradient(135deg, #2F80ED 0%, #1ECAD3 100%);
  --grad-text: linear-gradient(90deg, #1ECAD3 0%, #7FE7ED 42%, #2F80ED 100%);

  /* radius */
  --r-lg: 18px;
  --r-md: 12px;
  --pill: 999px;

  /* shadow (dark theme: glow-led, not drop-shadow) */
  --sh-card: 0 1px 0 rgba(255,255,255,.03) inset, 0 18px 40px rgba(0,0,0,.45);
  --sh-hover: 0 1px 0 rgba(255,255,255,.05) inset, 0 26px 60px rgba(0,0,0,.55);
  --glow-teal: 0 0 0 1px rgba(30,202,211,.35), 0 18px 50px rgba(30,202,211,.18);

  --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
  --font-serif: 'Times New Roman', Times, 'Tinos', serif;
}

/* ---------- base ---------- */
*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; overflow-x: hidden; }
h1, h2, h3, h4, h5, .section-title, .hero h1{ overflow-wrap: break-word; }
body{
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img{ max-width: 100%; height: auto; }
a{ color: var(--blue); text-decoration: none; transition: color .2s ease; }
a:hover{ color: var(--teal); }
::selection{ background: rgba(30,202,211,.28); color: #fff; }

.container{ max-width: 1180px; }

/* the serif-italic display accent = the page signature */
.serif{
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: .005em;
}
.grad{
  font-family: var(--font-serif);
  font-style: italic;
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  padding-right: .04em;
}

/* ---------- section rhythm ---------- */
.section{ padding: 104px 0; position: relative; }
.bg-soft{ background: var(--bg-alt); }
@media (max-width: 768px){ .section{ padding: 68px 0; } }

.section-eyebrow{
  display: inline-block;
  font-size: .76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .16em;
  color: var(--teal);
  margin-bottom: .85rem;
}
.section-title{
  font-size: clamp(1.9rem, 3.6vw, 2.85rem);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.12;
  margin: 0 0 1rem;
  color: var(--text);
}
.section-lead{
  font-size: 1.12rem;
  color: var(--muted);
  max-width: 680px;
  line-height: 1.6;
}

/* ---------- top utility bar ---------- */
.topbar{
  background: #070A0E;
  color: var(--muted);
  font-size: .82rem;
  padding: .55rem 0;
  border-bottom: 1px solid var(--line);
}
.topbar a{ color: var(--muted); }
.topbar a:hover{ color: var(--teal); }
.topbar .sep{ margin: 0 .55rem; color: var(--faint); }

/* ---------- navbar ---------- */
.navbar{
  background: rgba(11,15,20,.72);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--line);
  padding: .6rem 0;
  transition: box-shadow .25s ease, background .25s ease;
}
.navbar.scrolled{
  background: rgba(11,15,20,.92);
  box-shadow: 0 10px 30px rgba(0,0,0,.45);
}
.navbar-brand img{ height: 40px; width: auto; }
.navbar .nav-link{
  color: var(--text) !important;
  font-weight: 500;
  font-size: .96rem;
  padding: .5rem .9rem !important;
  position: relative;
}
.navbar .nav-link::after{
  content:""; position:absolute; left:.9rem; right:.9rem; bottom:.32rem;
  height:2px; background: var(--teal); border-radius:2px;
  transform: scaleX(0); transform-origin:left; transition: transform .22s ease;
}
.navbar .nav-link:hover::after{ transform: scaleX(1); }
.navbar .nav-link:hover{ color: var(--teal) !important; }

.nav-cta{
  background: var(--blue);
  color:#fff !important;
  border-radius: var(--pill);
  padding: .5rem 1.35rem !important;
  font-weight: 600;
}
.nav-cta::after{ display:none; }
.nav-cta:hover{ background: var(--blue-600); color:#fff !important; }

.navbar-toggler{ border-color: var(--line-strong); }
.navbar-toggler-icon{
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23F5F7FA' stroke-width='2' stroke-linecap='round' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* dropdown */
.dropdown-menu{
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-md);
  box-shadow: var(--sh-card);
  padding: .4rem;
  margin-top: .5rem;
}
.dropdown-item{
  color: var(--text);
  border-radius: 8px;
  padding: .5rem .7rem;
  font-size: .92rem;
  display:flex; align-items:center; gap:.5rem;
}
.dropdown-item:hover, .dropdown-item:focus{
  background: var(--teal-soft);
  color: var(--teal);
}
.dropdown-divider{ border-color: var(--line); }

/* ---------- buttons ---------- */
.btn{
  border-radius: var(--r-md);
  font-weight: 600;
  padding: .78rem 1.6rem;
  border: 1px solid transparent;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
}
.btn:active{ transform: translateY(0); }
.btn-lg{ padding: .9rem 1.9rem; font-size: 1.02rem; }

.btn-primary{
  background: var(--blue); color:#fff; border-color: var(--blue);
}
.btn-primary:hover{
  background: var(--blue-600); border-color: var(--blue-600); color:#fff;
  transform: translateY(-2px); box-shadow: 0 14px 30px rgba(47,128,237,.35);
}
.btn-ai{
  background: var(--ai-grad); color:#04141a; border:none;
  position: relative;
}
.btn-ai:hover{
  color:#04141a; transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(30,202,211,.34);
}
.btn-light{
  background: var(--teal); color:#04141a; border:none;
}
.btn-light:hover{ background:#3ad8e0; color:#04141a; transform: translateY(-2px); box-shadow: 0 16px 40px rgba(30,202,211,.32); }
.btn-outline-light{
  background: transparent; color: var(--text);
  border: 1px solid var(--line-strong);
}
.btn-outline-light:hover{
  background: rgba(255,255,255,.06); color: var(--teal);
  border-color: var(--teal); transform: translateY(-2px);
}

/* ---------- badges / tags ---------- */
.badge-ai, .tag{
  display:inline-block;
  background: var(--ai-grad);
  color:#04141a;
  font-size:.6rem; font-weight:800; letter-spacing:.08em;
  text-transform: uppercase;
  padding:.16rem .5rem; border-radius: var(--pill);
  vertical-align: middle; margin-left:.4rem;
}

/* ============================================================
   HERO (home)
   ============================================================ */
.hero{
  position: relative;
  padding: 168px 0 110px;
  background:
    linear-gradient(180deg, rgba(11,15,20,.55) 0%, rgba(11,15,20,.86) 62%, var(--bg) 100%),
    linear-gradient(115deg, rgba(8,12,18,.94) 0%, rgba(11,18,30,.82) 50%, rgba(13,28,44,.62) 100%),
    url("../images/index.jpg") center/cover no-repeat;
  overflow: hidden;
}
.hero::before{   /* teal computer-vision glow, upper right */
  content:""; position:absolute; inset:0;
  background: radial-gradient(720px 380px at 86% -6%, rgba(30,202,211,.30), transparent 60%);
  pointer-events:none;
}
.hero .container{ position: relative; z-index:1; }

.hero-badge{
  display:inline-flex; align-items:center; gap:.55rem;
  background: rgba(255,255,255,.05);
  border:1px solid var(--line-strong);
  color: var(--text);
  padding:.42rem 1rem; border-radius: var(--pill);
  font-size:.84rem; margin-bottom:1.4rem;
}
.hero-badge .dot{
  width:8px; height:8px; border-radius:50%;
  background: var(--teal); box-shadow: 0 0 0 4px rgba(30,202,211,.22);
}
.hero h1{
  font-size: clamp(2.3rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -.025em;
  line-height: 1.08;
  margin: 0 0 1.3rem;
}
.hero .lead{
  font-size: 1.2rem; color: var(--muted);
  max-width: 660px; line-height: 1.6; margin-bottom: 2rem;
}
.hero-cta{ display:flex; flex-wrap:wrap; gap:1rem; margin-bottom: 3rem; }

.hero-stats{
  display:grid; grid-template-columns: repeat(4, 1fr);
  gap: 1.2rem; max-width: 760px;
  padding-top: 1.8rem; border-top:1px solid var(--line);
}
.hero-stats .num{
  font-family: var(--font-serif); font-style: italic; font-weight:400;
  font-size: clamp(2rem, 3.4vw, 2.9rem); line-height:1;
  background: var(--grad-text); -webkit-background-clip:text; background-clip:text;
  -webkit-text-fill-color: transparent;
}
.hero-stats .lbl{ font-size:.82rem; color: var(--muted); margin-top:.5rem; }
@media (max-width: 680px){
  .hero-stats{ grid-template-columns: repeat(2,1fr); gap: 1.4rem 1rem; }
}

/* ============================================================
   ABOUT
   ============================================================ */
.about-list{ list-style:none; padding:0; margin: 1.6rem 0 0; }
.about-list li{
  display:flex; gap:.7rem; align-items:flex-start;
  padding:.5rem 0; color: var(--text);
}
.about-list i{ color: var(--teal); margin-top:.28rem; }

.stat-card{
  background: var(--surface);
  border:1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 1.6rem 1.4rem;
  height:100%;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.stat-card:hover{ transform: translateY(-4px); border-color: var(--line-strong); box-shadow: var(--sh-card); }
.stat-card .ic{
  width:46px; height:46px; border-radius:12px;
  display:flex; align-items:center; justify-content:center;
  background: var(--teal-soft); color: var(--teal);
  font-size:1.15rem; margin-bottom:1rem;
}
.stat-card h3{
  font-family: var(--font-serif); font-style:italic; font-weight:400;
  font-size: 2.3rem; margin:0 0 .15rem; color: var(--text);
}
.stat-card p{ margin:0; color: var(--muted); font-size:.92rem; }

/* ============================================================
   SOLUTION CARDS
   ============================================================ */
.solution-card{
  background: var(--surface);
  border:1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 2rem 1.9rem;
  height:100%;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.solution-card:hover{
  transform: translateY(-8px);
  border-color: rgba(30,202,211,.4);
  box-shadow: var(--sh-hover);
}
.solution-card .ic{
  width:60px; height:60px; border-radius:14px;
  display:flex; align-items:center; justify-content:center;
  background: var(--ai-grad); color:#04141a;
  font-size:1.5rem; margin-bottom:1.3rem;
  transition: transform .25s ease;
}
.solution-card:hover .ic{ transform: scale(1.06); }
.solution-card h4{ font-size:1.2rem; font-weight:700; margin:0 0 .7rem; letter-spacing:-.01em; }
.solution-card p{ color: var(--muted); font-size:.96rem; margin-bottom:1.1rem; }
.solution-link{
  display:inline-flex; align-items:center; gap:.45rem;
  color: var(--teal); font-weight:600; font-size:.92rem;
}
.solution-link i{ transition: transform .2s ease; }
.solution-link:hover{ color: var(--teal); }
.solution-link:hover i{ transform: translateX(5px); }

/* ============================================================
   PRODUCT CARDS
   ============================================================ */
.product-card{
  background: var(--surface);
  border:1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 2rem;
  height:100%;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.product-card:hover{ transform: translateY(-6px); border-color: var(--line-strong); box-shadow: var(--sh-hover); }
.product-head{ display:flex; align-items:center; gap:1rem; margin-bottom:1.1rem; }
.product-head .ic{
  width:52px; height:52px; border-radius:12px; flex:0 0 52px;
  display:flex; align-items:center; justify-content:center;
  background: var(--teal-soft); color: var(--teal); font-size:1.3rem;
}
.product-head h3{ font-size:1.28rem; font-weight:700; margin:0; letter-spacing:-.01em; }
.lead-sm{ color: var(--muted); font-size:.98rem; margin-bottom:1.2rem; }
.feature-list{ list-style:none; padding:0; margin:0 0 1.1rem; }
.feature-list li{
  display:flex; gap:.6rem; align-items:flex-start;
  padding:.34rem 0; font-size:.94rem; color: var(--text);
}
.feature-list i{ color: var(--teal); font-size:.8rem; margin-top:.4rem; }
.product-link{
  display:inline-flex; align-items:center; gap:.45rem;
  color: var(--teal); font-weight:600; font-size:.92rem;
}
.product-link i{ transition: transform .2s ease; }
.product-link:hover i{ transform: translateX(5px); }

/* AI / Magic Vision variant — bounding-box detection motif */
.product-card.is-ai{
  background:
    radial-gradient(120% 120% at 100% 0%, rgba(30,202,211,.10), transparent 55%),
    var(--surface);
  border-color: rgba(30,202,211,.35);
  position: relative;
}
.product-card.is-ai::before,
.product-card.is-ai::after{
  content:""; position:absolute; width:18px; height:18px; pointer-events:none;
  border-color: var(--teal); border-style: solid; opacity:.75;
}
.product-card.is-ai::before{ top:14px; left:14px; border-width:2px 0 0 2px; }
.product-card.is-ai::after{ bottom:14px; right:14px; border-width:0 2px 2px 0; }
.product-card.is-ai .product-head .ic{ background: var(--ai-grad); color:#04141a; }
.product-card.is-ai .feature-list i{ color: var(--teal); }

/* ============================================================
   PARTNERS / CLIENTS
   ============================================================ */
.partner-logo, .client-logo{
  max-height: 46px; width:auto; object-fit:contain;
  filter: none;
  transition: filter .3s ease, transform .3s ease;
}
.partner-logo:hover{ transform: scale(1.05); }
.partner-logo{ max-height: 82px; }
.client-logo-wrapper{
  background: #ffffff;
  border:1px solid var(--line);
  border-radius: var(--r-md);
  height: 92px;
  display:flex; align-items:center; justify-content:center;
  padding: 1rem; transition: border-color .25s ease, transform .25s ease;
}
.client-logo-wrapper:hover{ border-color: var(--line-strong); transform: translateY(-3px); }

/* ============================================================
   CONTACTS (already dark; just refine)
   ============================================================ */
.contacts{ background: var(--bg-alt); border-top:1px solid var(--line); }
.contact-item{
  background: var(--surface);
  border:1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 2rem 1.8rem; height:100%;
}
.contact-item .ic{
  width:54px; height:54px; border-radius:14px;
  display:flex; align-items:center; justify-content:center;
  background: var(--ai-grad); color:#04141a; font-size:1.3rem; margin-bottom:1.1rem;
}
.contact-item h4{ font-size:1.1rem; font-weight:700; margin:0 0 .6rem; }
.contact-item p{ color: var(--muted); margin:0; }
.contact-item a{ color: var(--text); }
.contact-item a:hover{ color: var(--teal); }
.contact-item small{ color: var(--faint); }
.social-links{ display:flex; gap:.7rem; }
.social-links a{
  width:40px; height:40px; border-radius:10px;
  display:flex; align-items:center; justify-content:center;
  background: rgba(255,255,255,.05); border:1px solid var(--line);
  color: var(--text); transition: all .2s ease;
}
.social-links a:hover{ background: var(--teal); color:#04141a; border-color: var(--teal); }

.contact-form{
  background: var(--surface);
  border:1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 2.4rem;
  margin-top: .5rem;
}
.contact-form .form-control{
  background: var(--bg);
  border:1px solid var(--line-strong);
  border-radius: var(--r-md);
  color: var(--text);
  padding: .8rem 1rem;
}
.contact-form .form-control::placeholder{ color: var(--faint); }
.contact-form .form-control:focus{
  background: var(--bg);
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(30,202,211,.18);
  color: var(--text);
}
.form-control.is-invalid{ border-color:#ef4444; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{
  background: #070A0E;
  border-top:1px solid var(--line);
  padding: 64px 0 28px;
  color: var(--muted);
}
.site-footer img{ height:40px; width:auto; }
.site-footer p{ color: var(--muted); font-size:.94rem; max-width: 340px; }
.site-footer h6{
  color: var(--text); font-weight:700; font-size:.82rem;
  text-transform: uppercase; letter-spacing:.1em; margin-bottom:1rem;
}
.site-footer ul{ list-style:none; padding:0; margin:0; }
.site-footer ul li{ margin-bottom:.55rem; }
.site-footer ul a{ color: var(--muted); font-size:.94rem; }
.site-footer ul a:hover{ color: var(--teal); }
.footer-bottom{
  border-top:1px solid var(--line);
  margin-top: 2.6rem; padding-top: 1.6rem;
  font-size:.86rem; color: var(--faint);
}

/* ============================================================
   ST MAGIC VISION (mgvision) — purple replaced by teal/blue
   ============================================================ */
.mv{
  background:
    radial-gradient(1200px 600px at 82% -12%, rgba(30,202,211,.22), transparent 58%),
    linear-gradient(160deg, #08141C 0%, #0A1A26 48%, #070C12 100%);
  position: relative;
}
.mv .section-title, .mv h3, .mv h6{ color: var(--text); }
.mv-eyebrow{ color: var(--teal); }
.mv-sub{ font-size:1.12rem; color: var(--muted); max-width: 620px; line-height:1.6; }

.lp-hero{ padding: 150px 0 96px; }
.lp-back{
  display:inline-flex; align-items:center; gap:.5rem;
  color: var(--muted); font-size:.9rem; font-weight:500; margin-bottom:1rem;
}
.lp-back:hover{ color: var(--teal); }

.mv-metrics{
  display:grid; grid-template-columns: repeat(2,1fr); gap:1rem;
  margin: 1.8rem 0 2rem; max-width: 520px;
}
.mv-metric{
  background: rgba(255,255,255,.05);
  border:1px solid rgba(30,202,211,.18);
  border-radius: var(--r-md);
  padding: 1.1rem 1.2rem;
}
.mv-metric .num{
  font-family: var(--font-serif); font-style:italic; font-weight:400;
  font-size: 2rem; line-height:1;
  background: var(--grad-text); -webkit-background-clip:text; background-clip:text;
  -webkit-text-fill-color: transparent;
}
.mv-metric .lbl{ font-size:.8rem; color: var(--muted); margin-top:.45rem; }

/* hero figure with bounding-box brackets */
.mv-figure{
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  border:1px solid rgba(30,202,211,.28);
  box-shadow: 0 30px 80px rgba(0,0,0,.55);
}
.mv-figure img{ display:block; width:100%; }
.mv-figure::before, .mv-figure::after{
  content:""; position:absolute; width:26px; height:26px; z-index:2;
  border-color: var(--teal); border-style: solid; pointer-events:none;
}
.mv-figure::before{ top:12px; left:12px; border-width:2px 0 0 2px; }
.mv-figure::after{ bottom:12px; right:12px; border-width:0 2px 2px 0; }

/* feature cards */
.lp-feature{
  background: var(--surface);
  border:1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 1.6rem 1.5rem; height:100%;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.lp-feature:hover{ transform: translateY(-6px); border-color: rgba(30,202,211,.4); box-shadow: var(--sh-hover); }
.lp-feature .ic{
  width:48px; height:48px; border-radius:12px;
  display:flex; align-items:center; justify-content:center;
  background: var(--ai-grad); color:#04141a; font-size:1.2rem; margin-bottom:1rem;
}
.lp-feature h5{ font-size:1.05rem; font-weight:700; margin:0 0 .5rem; }
.lp-feature p{ color: var(--muted); font-size:.92rem; margin:0; }

/* business cases */
.lp-case{
  background: var(--surface);
  border:1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 1.6rem; height:100%;
  display:flex; flex-direction:column; gap:1rem;
}
.lp-case .row-block p{ margin:.35rem 0 0; font-size:.93rem; color: var(--muted); }
.lp-case .lbl{
  display:inline-block; font-size:.68rem; font-weight:800;
  text-transform:uppercase; letter-spacing:.1em;
  padding:.18rem .55rem; border-radius: var(--pill);
}
.lbl-problem{ background: rgba(239,68,68,.16); color:#ff8a8a; }
.lbl-solution{ background: rgba(47,128,237,.16); color:#7db0ff; }
.lbl-benefit{ background: rgba(30,202,211,.16); color: var(--teal); }
.row-benefit{
  background: rgba(30,202,211,.07);
  border:1px solid rgba(30,202,211,.22);
  border-radius: var(--r-md);
  padding: .9rem 1rem; margin-top: auto;
}
.lp-case .big{
  font-family: var(--font-serif); font-style:italic; font-weight:400;
  font-size:1.18rem; color: var(--text); margin-top:.4rem;
}

/* implementation steps — numbered (real sequence, so numbers earn their place) */
.mv-steps{ counter-reset: step; display:grid; grid-template-columns: repeat(5,1fr); gap:1rem; }
.mv-step{
  background: rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.10);
  border-radius: var(--r-lg);
  padding: 1.5rem 1.3rem; position: relative;
}
.mv-step::before{
  counter-increment: step; content: "0" counter(step);
  font-family: var(--font-serif); font-style:italic; font-weight:400;
  font-size: 2.2rem; line-height:1; display:block; margin-bottom:.7rem;
  background: var(--grad-text); -webkit-background-clip:text; background-clip:text;
  -webkit-text-fill-color: transparent;
}
.mv-step h6{ font-size:1rem; font-weight:700; margin:0 0 .45rem; color: var(--text); }
.mv-step p{ font-size:.86rem; color: var(--muted); margin:0 0 .6rem; }
.mv-step .when{ font-size:.76rem; color: var(--teal); font-weight:600; }
@media (max-width: 992px){ .mv-steps{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 560px){ .mv-steps{ grid-template-columns: 1fr; } }

/* cost model */
.lp-model{
  background: var(--surface);
  border:1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 1.5rem 1.4rem; height:100%;
}
.lp-model .tagk{
  display:inline-block; font-size:.7rem; font-weight:800; letter-spacing:.08em;
  text-transform:uppercase; color: var(--teal);
  background: var(--teal-soft); padding:.2rem .55rem; border-radius: var(--pill);
  margin-bottom:.8rem;
}
.lp-model h5{ font-size:1.05rem; font-weight:700; margin:0 0 .5rem; color: var(--text); }
.lp-model p{ color: var(--muted); font-size:.9rem; margin:0; }

/* CTA block */
.lp-cta{
  background:
    radial-gradient(140% 140% at 0% 0%, rgba(30,202,211,.22), transparent 55%),
    var(--ai-grad);
  border-radius: 24px;
  padding: 4rem 2rem; text-align:center; color:#04141a;
  position: relative; overflow: hidden;
}
.lp-cta h2{ font-size: clamp(1.7rem,3.4vw,2.5rem); font-weight:800; letter-spacing:-.02em; color:#04141a; }
.lp-cta p{ color: rgba(4,20,26,.82); }
.lp-cta .btn-light{ background:#04141a; color: var(--teal); }
.lp-cta .btn-light:hover{ background:#0a1f28; color: var(--teal); }
.lp-cta .btn-outline-light{ border-color: rgba(4,20,26,.4); color:#04141a; }
.lp-cta .btn-outline-light:hover{ background: rgba(4,20,26,.1); color:#04141a; border-color:#04141a; }

/* ============================================================
   reveal animation + utilities
   ============================================================ */
.reveal{ opacity:0; transform: translateY(26px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in{ opacity:1; transform: none; }

#backToTop{
  position: fixed; right: 22px; bottom: 22px; z-index: 50;
  width:46px; height:46px; border-radius:50%;
  background: var(--blue); color:#fff; border:none;
  display:none; align-items:center; justify-content:center;
  cursor:pointer; box-shadow: 0 10px 30px rgba(0,0,0,.5);
  transition: transform .2s ease, background .2s ease;
}
#backToTop:hover{ background: var(--blue-600); transform: translateY(-3px); }

/* page loader */
.loading{
  position: fixed; inset:0; z-index: 9999;
  background: var(--bg); display:flex; align-items:center; justify-content:center;
}
.loading .spinner{
  width:42px; height:42px; border-radius:50%;
  border:3px solid rgba(30,202,211,.2); border-top-color: var(--teal);
  animation: spin .8s linear infinite;
}
@keyframes spin{ to{ transform: rotate(360deg); } }

/* keyboard accessibility */
:focus-visible{ outline: 2px solid var(--teal); outline-offset: 2px; border-radius: 4px; }

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

/* ===== Mobile polish only ===== */
@media (max-width: 768px) {
  body {
    font-size: 15px;
    line-height: 1.55;
  }

  .container {
    padding-left: 18px;
    padding-right: 18px;
  }

  .navbar {
    padding: 0.55rem 0;
  }

  .navbar-brand img {
    height: 34px;
  }

  .navbar-collapse {
    background: rgba(11, 15, 20, 0.98);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: 14px;
    margin-top: 12px;
    padding: 12px;
  }

  .navbar .nav-link {
    padding: 0.75rem 0.9rem !important;
  }

  .nav-cta {
    display: inline-block;
    margin-top: 6px;
    text-align: center;
  }

  .hero {
    padding: 92px 0 64px;
    background-position: center top;
  }

  .hero h1 {
    font-size: 32px !important;
    line-height: 1.14;
    letter-spacing: -0.02em;
  }

  .hero .lead {
    font-size: 16px;
    line-height: 1.55;
    margin-bottom: 1.4rem;
  }

  .hero-badge {
    font-size: 13px;
    padding: 0.36rem 0.75rem;
    margin-bottom: 1rem;
  }

  .hero-cta {
    display: grid;
    gap: 0.75rem;
    margin-bottom: 2rem;
  }

  .hero-cta .btn {
    width: 100%;
    padding: 0.85rem 1rem;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    padding-top: 1.3rem;
  }

  .hero-stats .num {
    font-size: 28px;
  }

  .hero-stats .lbl {
    font-size: 13px;
  }

  .section {
    padding: 56px 0;
  }

  .section-title {
    font-size: 28px;
    line-height: 1.18;
  }

  .section-lead {
    font-size: 16px;
  }

  .solution-card,
  .product-card,
  .stat-card,
  .contact-item {
    padding: 1.35rem;
    border-radius: 16px;
  }

  .product-head {
    align-items: flex-start;
  }

  .client-logo-wrapper {
    height: 76px;
    padding: 0.75rem;
  }

  .client-logo,
  .partner-logo {
    max-height: 42px;
  }

  .contact-form {
    padding: 1.35rem;
  }

  .site-footer {
    padding: 46px 0 24px;
  }
}