:root{
  --navy:#0b1f3a;
  --navy-2:#13315c;
  --blue:#1d6fe0;
  --blue-light:#3b9bff;
  --gray:#6b7a90;
  --gray-light:#eef2f7;
  --white:#ffffff;
  --bg:#f7f9fc;
  --shadow:0 10px 30px rgba(11,31,58,.08);
  --shadow-lg:0 20px 50px rgba(11,31,58,.15);
  --radius:14px;
  --maxw:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter','Segoe UI',system-ui,-apple-system,sans-serif;color:#1a2540;background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* Header */
header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(11,31,58,.06);transition:all .3s}
header.scrolled{box-shadow:var(--shadow)}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.logo{display:flex;align-items:center;gap:12px;font-weight:700;font-size:18px;color:var(--navy)}
.logo img{width:42px;height:42px;object-fit:contain}
.nav-links{display:flex;gap:32px;align-items:center}
.nav-links a{font-size:15px;font-weight:500;color:var(--navy);position:relative;transition:color .2s}
.nav-links a:hover{color:var(--blue)}
.nav-links a::after{content:'';position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--blue);transition:width .3s}
.nav-links a:hover::after{width:100%}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:10px;font-weight:600;font-size:15px;cursor:pointer;transition:all .25s;border:none;font-family:inherit}
.btn-primary{background:linear-gradient(135deg,var(--blue),var(--blue-light));color:#fff;box-shadow:0 8px 20px rgba(29,111,224,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(29,111,224,.45)}
.btn-ghost{background:transparent;color:var(--navy);border:1.5px solid rgba(11,31,58,.15)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue)}
.burger{display:none;background:none;border:none;cursor:pointer;padding:8px}
.burger span{display:block;width:24px;height:2px;background:var(--navy);margin:5px 0;transition:.3s}

/* Hero */
.hero{position:relative;padding:140px 0 90px;overflow:hidden;background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 100%);color:#fff}
.hero::before{content:'';position:absolute;inset:0;background:url('assets/hero.jpg') center/cover;opacity:.18}
.hero::after{content:'';position:absolute;inset:0;background:radial-gradient(circle at 70% 30%,rgba(59,155,255,.25),transparent 60%)}
.hero-inner{position:relative;z-index:2;max-width:780px}
.eyebrow{display:inline-block;padding:6px 14px;background:rgba(59,155,255,.15);border:1px solid rgba(59,155,255,.3);border-radius:30px;font-size:13px;font-weight:500;color:var(--blue-light);margin-bottom:24px;letter-spacing:.3px}
h1{font-size:clamp(34px,5vw,58px);line-height:1.1;font-weight:800;margin-bottom:22px;letter-spacing:-.02em}
h1 .accent{background:linear-gradient(135deg,var(--blue-light),#7dc2ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{font-size:18px;color:rgba(255,255,255,.8);max-width:600px;margin-bottom:36px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-cta .btn-ghost{color:#fff;border-color:rgba(255,255,255,.25)}
.hero-cta .btn-ghost:hover{background:rgba(255,255,255,.08);border-color:#fff;color:#fff}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-top:60px;padding-top:40px;border-top:1px solid rgba(255,255,255,.1)}
.stat-num{font-size:36px;font-weight:800;color:var(--blue-light);line-height:1}
.stat-lbl{font-size:14px;color:rgba(255,255,255,.7);margin-top:6px}

/* Sections */
section{padding:90px 0}
.section-head{text-align:center;max-width:680px;margin:0 auto 56px}
.section-eyebrow{font-size:13px;font-weight:600;color:var(--blue);text-transform:uppercase;letter-spacing:1.5px;margin-bottom:14px}
h2{font-size:clamp(28px,3.5vw,42px);font-weight:800;color:var(--navy);letter-spacing:-.02em;margin-bottom:16px}
.section-head p{color:var(--gray);font-size:17px}

/* About */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about-img{position:relative;border-radius:20px;overflow:hidden;box-shadow:var(--shadow-lg)}
.about-img img{aspect-ratio:4/3;object-fit:cover;transition:transform .6s}
.about-img:hover img{transform:scale(1.05)}
.about-text h2{text-align:left}
.about-text p{color:var(--gray);margin-bottom:16px;font-size:16px}
.about-list{margin-top:24px;display:grid;gap:14px}
.about-list li{list-style:none;display:flex;gap:12px;align-items:flex-start;color:#1a2540}
.about-list .check{flex-shrink:0;width:24px;height:24px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--blue-light));color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700}

/* Services */
.services{background:var(--white)}
.services-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.service-card{background:#fff;border:1px solid var(--gray-light);border-radius:var(--radius);padding:32px 28px;transition:all .35s;cursor:pointer;position:relative;overflow:hidden}
.service-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--blue),var(--blue-light));transform:scaleX(0);transform-origin:left;transition:transform .35s}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.service-card:hover::before{transform:scaleX(1)}
.service-icon{width:56px;height:56px;border-radius:14px;background:linear-gradient(135deg,rgba(29,111,224,.1),rgba(59,155,255,.15));display:flex;align-items:center;justify-content:center;color:var(--blue);margin-bottom:20px;transition:.3s}
.service-card:hover .service-icon{background:linear-gradient(135deg,var(--blue),var(--blue-light));color:#fff;transform:rotate(-5deg) scale(1.05)}
.service-card h3{font-size:19px;color:var(--navy);margin-bottom:10px;font-weight:700}
.service-card p{color:var(--gray);font-size:15px}

/* Advantages */
.advantages{background:var(--gray-light)}
.adv-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px}
.adv-card{background:#fff;padding:32px 28px;border-radius:var(--radius);text-align:center;transition:.3s;box-shadow:0 4px 12px rgba(11,31,58,.04)}
.adv-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.adv-num{font-size:42px;font-weight:800;background:linear-gradient(135deg,var(--blue),var(--blue-light));-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:12px}
.adv-card h4{font-size:17px;color:var(--navy);margin-bottom:8px;font-weight:700}
.adv-card p{color:var(--gray);font-size:14px}

/* Reviews */
.reviews{background:#fff}
.reviews-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
.review-card{background:linear-gradient(180deg,#fff,#f9fbff);border:1px solid var(--gray-light);border-radius:var(--radius);padding:30px;transition:.3s;position:relative}
.review-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(29,111,224,.2)}
.stars{color:#ffb800;font-size:16px;margin-bottom:14px;letter-spacing:2px}
.review-text{color:#2c3a55;font-size:15px;font-style:italic;margin-bottom:20px;min-height:90px}
.review-author{display:flex;align-items:center;gap:12px;padding-top:18px;border-top:1px solid var(--gray-light)}
.avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--blue-light));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px}
.review-author strong{display:block;color:var(--navy);font-size:15px}
.review-author span{color:var(--gray);font-size:13px}

/* Contacts & form */
.contacts{background:linear-gradient(135deg,var(--navy),var(--navy-2));color:#fff}
.contacts h2{color:#fff}
.contacts-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:50px;align-items:start}
.contact-info{display:grid;gap:20px}
.contact-item{display:flex;gap:16px;align-items:flex-start;padding:18px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:12px;transition:.25s}
.contact-item:hover{background:rgba(255,255,255,.08);transform:translateX(4px)}
.contact-item .ic{flex-shrink:0;width:42px;height:42px;border-radius:10px;background:linear-gradient(135deg,var(--blue),var(--blue-light));display:flex;align-items:center;justify-content:center;color:#fff}
.contact-item .lbl{font-size:13px;color:rgba(255,255,255,.6);margin-bottom:4px}
.contact-item .val{font-size:15px;color:#fff;font-weight:500;word-break:break-word}
.contact-item a.val:hover{color:var(--blue-light)}

/* Form */
.form-card{background:#fff;color:#1a2540;border-radius:18px;padding:40px;box-shadow:var(--shadow-lg)}
.form-card h3{color:var(--navy);font-size:24px;margin-bottom:8px;font-weight:700}
.form-card .sub{color:var(--gray);font-size:14px;margin-bottom:26px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--navy);margin-bottom:7px}
.field input,.field textarea{width:100%;padding:13px 16px;border:1.5px solid #e3e9f2;border-radius:10px;font-size:15px;font-family:inherit;background:#fafbfd;transition:.2s;color:#1a2540}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--blue);background:#fff;box-shadow:0 0 0 4px rgba(29,111,224,.1)}
.field textarea{resize:vertical;min-height:110px}
.checkbox{display:flex;gap:10px;align-items:flex-start;margin:18px 0;font-size:13px;color:var(--gray);cursor:pointer;line-height:1.5}
.checkbox input{margin-top:2px;width:17px;height:17px;accent-color:var(--blue);flex-shrink:0;cursor:pointer}
.checkbox a{color:var(--blue);text-decoration:underline}
.form-card .btn-primary{width:100%;padding:15px}
.form-msg{margin-top:14px;padding:12px;border-radius:8px;font-size:14px;display:none}
.form-msg.ok{display:block;background:#e6f7ec;color:#0a7a3f;border:1px solid #b8e5c8}
.form-msg.err{display:block;background:#fdecec;color:#b41818;border:1px solid #f5c2c2}

/* Footer */
footer{background:#06152c;color:rgba(255,255,255,.6);padding:40px 0;text-align:center;font-size:14px}
footer strong{color:#fff}
footer .legal{margin-top:8px;font-size:12px;color:rgba(255,255,255,.4);line-height:1.7}

/* Modal */
.modal{display:none;position:fixed;inset:0;background:rgba(6,21,44,.75);z-index:200;align-items:center;justify-content:center;padding:20px;backdrop-filter:blur(6px)}
.modal.open{display:flex;animation:fadeIn .25s}
.modal-content{background:#fff;border-radius:16px;max-width:720px;width:100%;max-height:90vh;overflow-y:auto;padding:40px;position:relative;animation:slideUp .3s}
.modal-close{position:absolute;top:14px;right:14px;background:#f0f3f8;border:none;width:36px;height:36px;border-radius:50%;cursor:pointer;font-size:20px;color:var(--navy);display:flex;align-items:center;justify-content:center;transition:.2s}
.modal-close:hover{background:#e3e9f2}
.modal-content h2{font-size:24px;margin-bottom:18px;text-align:left}
.modal-content p,.modal-content li{font-size:14px;color:#3a4a66;margin-bottom:10px;line-height:1.65}
.modal-content ul{padding-left:22px;margin-bottom:14px}

/* Animations */
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes slideUp{from{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}
.reveal{opacity:0;transform:translateY(30px);transition:all .8s cubic-bezier(.2,.7,.3,1)}
.reveal.visible{opacity:1;transform:none}

/* Mobile */
@media(max-width:880px){
  .nav-links{position:fixed;top:68px;left:0;right:0;background:#fff;flex-direction:column;padding:24px;gap:18px;box-shadow:var(--shadow);transform:translateY(-120%);transition:.3s;align-items:flex-start}
  .nav-links.open{transform:translateY(0)}
  .burger{display:block}
  .about-grid,.contacts-grid{grid-template-columns:1fr;gap:40px}
  .stats{grid-template-columns:repeat(2,1fr);gap:24px}
  section{padding:64px 0}
  .hero{padding:120px 0 70px}
  .form-card{padding:28px 22px}
  .modal-content{padding:28px 22px}
}