/* ============ БАЗА ============ */
:root{
    --dark:#0a1e33;
    --dark-2:#0d2740;
    --accent:#f97316;
    --accent-2:#fb923c;
    --blue:#2563eb;
    --text:#12263a;
    --muted:#5b7186;
    --light:#f5f8fb;
    --white:#ffffff;
    --border:#e3eaf2;
    --radius:16px;
    --shadow:0 10px 30px rgba(10,30,51,.08);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,Arial,sans-serif;color:var(--text);background:var(--white);line-height:1.65;font-size:16px}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
h1,h2,h3,h4{line-height:1.25;font-weight:800}
.container{max-width:1160px;margin:0 auto;padding:0 20px}

/* ============ КНОПКИ ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:12px;font-weight:700;font-size:15px;border:none;cursor:pointer;transition:.25s;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--accent),#ea580c);color:#fff;box-shadow:0 8px 20px rgba(249,115,22,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(249,115,22,.45)}
.btn-outline{border:2px solid rgba(255,255,255,.6);color:#fff;background:transparent}
.btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn-white{background:#fff;color:var(--dark)}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(0,0,0,.25)}
.btn-large{padding:16px 34px;font-size:17px}

/* ============ ШАПКА ============ */
.header{position:sticky;top:0;z-index:100;background:#fff;transition:.3s;border-bottom:1px solid transparent}
.header.scrolled{box-shadow:0 6px 24px rgba(10,30,51,.1);border-bottom-color:var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:80px}
.logo{display:flex;align-items:center;gap:10px}
.logo img{height:46px;width:auto}
.nav{display:flex;align-items:center;gap:26px}
.nav a{font-weight:600;font-size:15px;color:var(--text);transition:.2s}
.nav a:hover{color:var(--accent)}
.nav a.btn{color:#fff}
.menu-toggle{display:none;background:none;border:none;font-size:26px;color:var(--dark);cursor:pointer}

/* ============ HERO (фон) ============ */
.hero{position:relative;color:#fff;padding:120px 0 100px;background:linear-gradient(rgba(6,17,31,.78),rgba(6,17,31,.88)),url('images/hero.jpg') center/cover no-repeat fixed}
.hero-badge{display:inline-block;background:rgba(249,115,22,.15);border:1px solid rgba(249,115,22,.5);color:var(--accent-2);padding:8px 18px;border-radius:999px;font-weight:600;font-size:14px;margin-bottom:22px}
.hero h1{font-size:clamp(30px,5vw,54px);max-width:820px;margin-bottom:20px}
.hero h1 span{color:var(--accent-2)}
.hero p{font-size:clamp(16px,2vw,19px);max-width:680px;color:#cfe0f0;margin-bottom:34px}
.hero-buttons{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:56px}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;max-width:860px}
.stat{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);backdrop-filter:blur(6px);border-radius:14px;padding:20px 16px;text-align:center}
.stat b{display:block;font-size:clamp(24px,3vw,36px);color:var(--accent-2);font-weight:800}
.stat span{font-size:24px;color:#cfe0f0}

/* ============ СЕКЦИИ ============ */
.section{padding:85px 0}
.section-alt{background:var(--light)}
.section-header{margin-bottom:46px;max-width:760px}
.section-header h2{font-size:clamp(26px,3.4vw,40px);margin-bottom:14px}
.section-header h2 span{color:var(--accent)}
.section-sub{color:var(--muted);font-size:17px}
.section-banner{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);margin-bottom:44px}
.section-banner img{width:100%;height:auto;object-fit:cover}

/* ============ УСЛУГИ ============ */
.services-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.service-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:.3s}
.service-card:hover{transform:translateY(-6px)}
.service-card img{width:100%;height:170px;object-fit:cover}
.service-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.service-body h3{font-size:19px}
.service-body p{color:var(--muted);font-size:14.5px;flex:1}
.service-link{color:var(--accent);font-weight:700;font-size:14.5px}
.service-link:hover{text-decoration:underline}

/* ============ ПОЧЕМУ Я ============ */
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.why-card{background:#fff;border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);border-top:4px solid var(--accent)}
.why-card .icon{width:52px;height:52px;border-radius:12px;background:rgba(249,115,22,.12);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:16px}
.why-card h3{font-size:17px;margin-bottom:10px}
.why-card p{color:var(--muted);font-size:14.5px}

/* ============ АККОРДЕОН (мобильные бургеры) ============ */
.acc-toggle{display:none;width:100%;align-items:center;justify-content:space-between;gap:14px;background:#fff;border:1px solid var(--border);border-radius:12px;padding:15px 18px;font-weight:700;font-size:15px;color:var(--text);cursor:pointer;text-align:left}
.acc-toggle::after{content:'+';font-size:22px;color:var(--accent);font-weight:800;transition:.25s;line-height:1}
.acc-block.open .acc-toggle::after{transform:rotate(45deg)}
.acc-body{display:block}

/* ============ ПРОЦЕСС ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{background:#fff;border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);position:relative}
.step-num{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--accent),#ea580c);color:#fff;font-weight:800;font-size:18px;display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.step h3{font-size:17px;margin-bottom:10px}
.step p{color:var(--muted);font-size:14.5px}

/* ============ КЕЙСЫ ============ */
.cases-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{background:#fff;border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:14px}
.case-tag{align-self:flex-start;background:rgba(37,99,235,.1);color:var(--blue);font-size:12.5px;font-weight:700;padding:5px 12px;border-radius:999px}
.case-card h3{font-size:18px}
.case-card p{color:var(--muted);font-size:14.5px}
.case-metrics{display:flex;gap:12px;flex-wrap:wrap;margin-top:auto}
.metric{background:var(--light);border-radius:10px;padding:10px 14px;font-size:13px}
.metric b{display:block;color:var(--accent);font-size:18px}

/* ============ ОТЗЫВЫ ============ */
.reviews-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.review-card{background:#fff;border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.review-head{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.avatar{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--accent));color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center}
.review-head b{display:block;font-size:15px}
.review-head span{font-size:13px;color:var(--muted)}
.review-card p{color:var(--muted);font-size:14.5px;font-style:italic}

/* ============ БЛОГ ============ */
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.blog-card{background:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:12px;transition:.3s}
.blog-card:hover{transform:translateY(-5px)}
.blog-card .num{font-size:13px;font-weight:800;color:var(--accent)}
.blog-card h3{font-size:16.5px;flex:1}
.blog-card a{color:var(--accent);font-weight:700;font-size:14px}

/* ============ FAQ ============ */
.faq-list{max-width:860px}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:12px;margin-bottom:14px;overflow:hidden}
.faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;background:none;border:none;padding:18px 22px;font-weight:700;font-size:16px;color:var(--text);cursor:pointer;text-align:left}
.faq-question::after{content:'+';font-size:24px;color:var(--accent);font-weight:800;transition:.25s}
.faq-item.active .faq-question::after{transform:rotate(45deg)}
.faq-answer{display:none;padding:0 22px 20px;color:var(--muted);font-size:15px}
.faq-item.active .faq-answer{display:block}

/* ============ CTA ============ */
.cta-section{background:linear-gradient(rgba(8,20,36,.82),rgba(8,20,36,.9)),url('images/cta-banner.jpg') center/cover no-repeat;color:#fff;padding:95px 0;text-align:center}
.cta-content h2{font-size:clamp(26px,3.6vw,42px);margin-bottom:16px}
.cta-content p{max-width:640px;margin:0 auto 34px;color:#cfe0f0;font-size:17px}

/* ============ КОНТАКТЫ ============ */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:44px;align-items:start}
.contact-info h3{font-size:22px;margin-bottom:16px}
.contact-info p{color:var(--muted);margin-bottom:24px}
.contact-row{display:flex;gap:14px;align-items:center;margin-bottom:16px;font-weight:600}
.contact-row .ci{width:46px;height:46px;border-radius:12px;background:rgba(249,115,22,.12);display:flex;align-items:center;justify-content:center;font-size:20px}
.contact-form{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:34px}
.contact-form h3{font-size:22px;margin-bottom:8px}
.contact-form .form-sub{color:var(--muted);font-size:14.5px;margin-bottom:24px}
.form-group{margin-bottom:16px}
.form-group input,.form-group textarea{width:100%;border:1.5px solid var(--border);border-radius:12px;padding:14px 16px;font-size:15px;font-family:inherit;transition:.2s;background:var(--light)}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--accent);background:#fff}
.form-note{font-size:12.5px;color:var(--muted);margin-top:12px}
.contact-link{color:var(--blue);font-weight:600;transition:.2s;text-decoration:underline}
.contact-link:hover{color:#dc2626;text-decoration:underline}

/* ============ ФУТЕР ============ */
.footer{background:var(--dark);color:#b9c9da;padding:70px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:50px}
.footer-logo-wrap{display:inline-block;margin-bottom:18px}
.footer-logo-wrap img{height:38px;width:auto}
.footer h4{color:#fff;margin-bottom:18px;font-size:16px}
.footer p{font-size:14.5px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14.5px;transition:.2s}
.footer-links a:hover{color:var(--accent-2)}
.social-links{display:flex;gap:12px;margin-top:20px}
.social-links a{width:42px;height:42px;border-radius:10px;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;font-size:18px;transition:.25s}
.social-links a:hover{background:var(--accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:22px 0;text-align:center;font-size:13.5px}

/* ============ SCROLL TOP ============ */
.scroll-top{position:fixed;right:24px;bottom:24px;width:50px;height:50px;border-radius:12px;background:linear-gradient(135deg,var(--accent),#ea580c);color:#fff;border:none;font-size:20px;cursor:pointer;opacity:0;visibility:hidden;transition:.3s;z-index:90;box-shadow:0 10px 24px rgba(249,115,22,.4)}
.scroll-top.show{opacity:1;visibility:visible}

/* ============ СТАТЬИ ============ */
.breadcrumbs{padding:20px 0 0;font-size:13.5px;color:var(--muted)}
.breadcrumbs ul{display:flex;flex-wrap:wrap;gap:8px}
.breadcrumbs a{color:var(--blue)}
.breadcrumbs li+li::before{content:'/';margin-right:8px;color:var(--muted)}
.article-header{background:var(--dark);color:#fff;padding:56px 0 46px;margin-top:20px}
.article-header h1{font-size:clamp(26px,3.6vw,40px);margin-bottom:16px}
.article-meta{display:flex;gap:20px;flex-wrap:wrap;font-size:13.5px;color:#b9c9da}
.article-hero-image{margin:34px 0}
.article-hero-image img{border-radius:var(--radius);box-shadow:var(--shadow);width:100%;max-height:440px;object-fit:cover}
.article-content{max-width:860px;margin:0 auto;padding:10px 20px 70px;font-size:16.5px}
.article-content h2{font-size:clamp(22px,2.6vw,29px);margin:44px 0 16px}
.article-content h3{font-size:19px;margin:30px 0 12px}
.article-content p{margin-bottom:16px}
.article-content ul{margin:0 0 18px 22px;list-style:disc}
.article-content li{margin-bottom:8px}
.article-content blockquote{border-left:4px solid var(--accent);background:var(--light);padding:18px 22px;border-radius:0 12px 12px 0;margin:20px 0;font-style:italic}
.article-content a{color:var(--blue);font-weight:600}
.article-content a:hover{text-decoration:underline}
.table-responsive{overflow-x:auto;margin:22px 0}
.article-content table{width:100%;border-collapse:collapse;font-size:15px}
.article-content th,.article-content td{border:1px solid var(--border);padding:12px 14px;text-align:left}
.article-content th{background:var(--light)}
.toc{background:var(--light);border:1px solid var(--border);border-radius:14px;padding:24px 28px;margin:26px 0}
.toc h4{margin-bottom:14px}
.toc li{margin-bottom:8px}
.toc a{color:var(--blue);font-size:15px}
.article-cta{background:linear-gradient(135deg,var(--dark),var(--dark-2));color:#fff;border-radius:var(--radius);padding:36px;margin:44px 0;text-align:center}
.article-cta h3{font-size:22px;margin-bottom:12px}
.article-cta p{color:#cfe0f0;margin-bottom:24px}

/* ============ АДАПТИВ ============ */
@media (max-width:1000px){
    .services-grid{grid-template-columns:repeat(2,1fr)}
    .steps{grid-template-columns:repeat(2,1fr)}
    .cases-grid,.reviews-grid,.blog-grid{grid-template-columns:repeat(2,1fr)}
    .why-grid{grid-template-columns:repeat(2,1fr)}
    .hero-stats{grid-template-columns:repeat(2,1fr)}
    .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
    .nav{position:fixed;top:80px;right:0;left:0;background:#fff;flex-direction:column;align-items:flex-start;padding:24px;gap:18px;box-shadow:0 20px 30px rgba(10,30,51,.15);transform:translateY(-130%);transition:.35s;z-index:99}
    .nav.open{transform:translateY(0)}
    .menu-toggle{display:block}
    /* большие тексты прячем в бургеры */
    .acc-toggle{display:flex}
    .acc-body{display:none;padding-top:16px}
    .acc-block.open .acc-body{display:block}
    .contact-grid{grid-template-columns:1fr}
}
@media (max-width:640px){
    .hero{padding:90px 0 70px;background-attachment:scroll}
    .services-grid,.steps,.cases-grid,.reviews-grid,.blog-grid,.why-grid{grid-template-columns:1fr}
    .hero-stats{grid-template-columns:repeat(2,1fr)}
    .footer-grid{grid-template-columns:1fr}
    .section{padding:60px 0}
    .logo img{height:38px}
}