:root{
  --red:#e30613;
  --red-dark:#b00510;
  --bg:#0d0d0f;
  --bg-2:#141416;
  --card:#1b1b1e;
  --card-2:#222226;
  --border:#2c2c30;
  --text:#f2f2f2;
  --muted:#a6a6ad;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ===== HEADER ===== */
header{position:sticky;top:0;z-index:100;background:rgba(13,13,15,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;flex-direction:column;line-height:1}
.logo-main{font-size:26px;font-weight:900;letter-spacing:1px}
.logo-main span{color:var(--red)}
.logo-sub{font-size:9px;letter-spacing:3px;color:var(--muted);margin-top:4px;font-weight:600}
.logo-image{align-items:flex-start}
.logo-img{height:140px;width:auto;display:block;object-fit:contain}
footer .logo-img{height:130px}
.nav-links{display:flex;gap:32px;list-style:none}
.nav-links a{font-size:13px;font-weight:600;letter-spacing:.5px;text-transform:uppercase;padding:8px 0;position:relative;transition:color .2s}
.nav-links a:hover,.nav-links a.active{color:var(--red)}
.nav-links a.active::after{content:'';position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--red)}
.btn{display:inline-flex;align-items:center;gap:10px;background:var(--red);color:#fff;font-weight:700;font-size:14px;letter-spacing:.5px;padding:12px 26px;border-radius:6px;border:none;cursor:pointer;transition:background .2s,transform .15s}
.btn:hover{background:var(--red-dark);transform:translateY(-1px)}
.hamburger{display:none;background:none;border:none;color:#fff;font-size:26px;cursor:pointer}

/* ===== HERO ===== */
.hero{position:relative;overflow:hidden;background:
  radial-gradient(ellipse 60% 80% at 75% 40%, rgba(227,6,19,.10), transparent 60%),
  linear-gradient(180deg,#151517 0%,#0a0a0c 100%)}
.hero-inner{display:grid;grid-template-columns:1fr 1.15fr;gap:44px;align-items:center;padding:70px 0 80px}
.hero-eyebrow{width:56px;height:4px;background:var(--red);border-radius:2px;margin-bottom:26px}
.hero h1{font-size:clamp(38px,5vw,60px);font-weight:900;line-height:1.05;text-transform:uppercase}
.hero h1 .accent{color:var(--red);display:block}
.hero-sub{margin-top:22px;font-size:clamp(16px,2vw,20px);font-weight:700;text-transform:uppercase;letter-spacing:.5px;max-width:480px}
.hero-list{list-style:none;margin:30px 0 36px;display:flex;flex-direction:column;gap:14px}
.hero-list li{display:flex;align-items:center;gap:12px;font-size:15px;color:#d8d8dc}
.check{flex:none;width:22px;height:22px;border:2px solid var(--red);border-radius:50%;display:inline-flex;align-items:center;justify-content:center;color:var(--red);font-size:12px;font-weight:900}
.hero-visual{border-radius:14px;overflow:hidden;border:1px solid var(--border);box-shadow:0 30px 60px rgba(0,0,0,.55)}
.hero-visual svg{width:100%;height:auto}

/* ===== SECTIONS ===== */
section{padding:40px 0}
.section-title{text-align:center;font-size:28px;font-weight:800;text-transform:uppercase;letter-spacing:1px;margin-bottom:48px}
.section-title::after{content:'';display:block;width:48px;height:3px;background:var(--red);margin:14px auto 0;border-radius:2px}

/* services */
.services{background:var(--bg-2)}
.services-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.service-card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:38px 26px;text-align:center;transition:transform .2s,border-color .2s}
.service-card:hover{transform:translateY(-6px);border-color:var(--red)}
.service-icon{width:58px;height:58px;margin:0 auto 22px}
.service-icon svg{width:100%;height:100%}
.service-card h3{font-size:15px;font-weight:800;text-transform:uppercase;letter-spacing:.5px;margin-bottom:14px}
.service-card p{font-size:13.5px;color:var(--muted)}

/* tech / specs */
.tech-head{text-align:center;max-width:640px;margin:0 auto 44px}
.tech-eyebrow{display:inline-block;font-size:12px;font-weight:800;letter-spacing:3px;text-transform:uppercase;color:var(--red);margin-bottom:12px}
.tech-head h2{font-size:28px;font-weight:900;text-transform:uppercase;letter-spacing:1px}
.tech-head p{margin-top:14px;font-size:14.5px;color:var(--muted)}
.spec-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.spec{background:var(--card);border:1px solid var(--border);border-left:3px solid var(--red);border-radius:10px;padding:28px 24px;text-align:center}
.spec-num{font-size:38px;font-weight:900;line-height:1}
.spec-num small{font-size:17px;font-weight:800;color:var(--red);margin-left:4px}
.spec-label{margin-top:10px;font-size:13px;color:var(--muted);text-transform:uppercase;letter-spacing:.5px;font-weight:600}
.tech-tags{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:34px}
.tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:#d8d8dc;background:var(--card-2);border:1px solid var(--border);border-radius:100px;padding:9px 18px}
.tag b{color:var(--red);font-weight:900}

/* why + form */
.why-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:start}
.why h2{font-size:30px;font-weight:900;text-transform:uppercase;margin-bottom:34px}
.why h2 span{color:var(--red)}
.why-item{display:flex;gap:18px;margin-bottom:26px}
.why-icon{flex:none;width:46px;height:46px;border:1.5px solid var(--red);border-radius:8px;display:flex;align-items:center;justify-content:center;padding:10px}
.why-icon svg{width:100%;height:100%}
.why-item h4{font-size:15.5px;font-weight:700;margin-bottom:3px}
.why-item p{font-size:13.5px;color:var(--muted)}
.why-visual{margin-top:34px;border-radius:10px;border:1px solid var(--border);overflow:hidden;box-shadow:0 20px 44px rgba(0,0,0,.5)}
.why-visual svg{width:100%;height:auto}

.form-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:38px}
.form-card h2{font-size:26px;font-weight:900;text-transform:uppercase;margin-bottom:8px}
.form-card .form-sub{font-size:14px;color:var(--muted);margin-bottom:28px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-grid .full{grid-column:1/-1}
input,select,textarea{width:100%;background:var(--card-2);border:1px solid var(--border);border-radius:8px;color:var(--text);padding:13px 15px;font-size:14px;font-family:inherit;transition:border-color .2s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--red)}
input::placeholder,textarea::placeholder{color:#77777e}
textarea{resize:vertical;min-height:90px}
.form-card .btn{width:100%;justify-content:center;margin-top:18px;padding:15px}

/* stats */
.stats{background:linear-gradient(180deg,var(--red) 0%,var(--red-dark) 100%);padding:44px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{display:flex;align-items:center;gap:18px;justify-content:center;border-right:1px solid rgba(255,255,255,.25)}
.stat:last-child{border-right:none}
.stat-icon{width:44px;height:44px;flex:none}
.stat-icon svg{width:100%;height:100%}
.stat-num{font-size:30px;font-weight:900;line-height:1.1}
.stat-label{font-size:13.5px;font-weight:500;opacity:.9}

/* footer */
footer{background:#0a0a0c;border-top:1px solid var(--border);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-about p{font-size:13.5px;color:var(--muted);margin:18px 0 22px;max-width:280px}
.socials{display:flex;gap:12px}
.social{width:40px;height:40px;border-radius:50%;background:var(--card);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;transition:background .2s,border-color .2s;padding:10px}
.social svg{width:100%;height:100%;fill:#fff}
.social:hover{background:var(--red);border-color:var(--red)}
footer h5{font-size:14px;font-weight:800;text-transform:uppercase;letter-spacing:1px;margin-bottom:20px}
.footer-links{list-style:none;display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:13.5px;color:var(--muted);transition:color .2s}
.footer-links a:hover{color:var(--red)}
.contact-item{display:flex;gap:12px;align-items:flex-start;margin-bottom:14px;font-size:13.5px;color:var(--muted)}
.contact-item svg{flex:none;width:16px;height:16px;margin-top:3px}
.footer-bottom{border-top:1px solid var(--border);padding:20px 0;text-align:center;font-size:12.5px;color:#77777e}

/* ===== RESPONSIVE ===== */
@media(max-width:1024px){
  .services-grid,.spec-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat{border-right:none;justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:860px){
  .nav-links,.nav .btn{display:none}
  .hamburger{display:block}
  .nav-links.open{display:flex;position:absolute;top:72px;left:0;right:0;flex-direction:column;background:var(--bg-2);padding:24px;border-bottom:1px solid var(--border);gap:18px}
  .hero-inner{grid-template-columns:1fr;padding:50px 0}
  .why-grid{grid-template-columns:1fr}
}
@media(max-width:560px){
  .services-grid,.spec-grid,.stats-grid,.footer-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto}}

/* form extras */
.hero-visual img,.why-visual img{width:100%;height:auto;display:block}
.file-field{display:flex;flex-direction:column;gap:8px}
.file-field label{font-size:13px;color:var(--muted);font-weight:600}
.file-preview{margin-top:8px;border-radius:8px;overflow:hidden;border:1px solid var(--border);max-height:160px;display:none}
.file-preview img{width:100%;height:100%;object-fit:cover}
.form-message{margin-top:14px;padding:12px 14px;border-radius:8px;font-size:14px;display:none}
.form-message.success{display:block;background:rgba(34,197,94,.12);border:1px solid rgba(34,197,94,.35);color:#86efac}
.form-message.error{display:block;background:rgba(239,68,68,.12);border:1px solid rgba(239,68,68,.35);color:#fca5a5}