/* ============================================
   КБ-98 — Ремонт и настройка станков с ЧПУ
   Master Stylesheet v2.0 — Premium Dark
   ============================================ */

/* === CSS Variables === */
:root {
  --primary: #c77800;
  --primary-dark: #9a5f00;
  --primary-light: #d4820a;
  --accent: #d4820a;
  --accent-light: #e8992e;
  --accent-dark: #a86800;
  --dark: #1a1a2e;
  --dark-2: #1e1e32;
  --dark-3: #242438;
  --dark-card: #2a2a40;
  --white: #ffffff;
  --gray-50: #f8f9fb;
  --gray-100: #f0f1f5;
  --gray-200: #e4e6ed;
  --gray-300: #d1d4dd;
  --gray-500: #8e92a0;
  --gray-600: #6b7080;
  --gray-700: #4a4e5a;
  --gray-800: #2d3040;
  --gray-900: #1a1c2e;
  --text: #2d3040;
  --text-light: #6b7080;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.05);
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-title: 'Montserrat', 'Inter', sans-serif;
  --container: 1200px;
}

/* === Reset === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font); color: var(--text); line-height: 1.7; overflow-x: hidden; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea { font-family: inherit; }

/* === Container === */
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* === Typography === */
h1, h2, h3, h4, h5 { font-family: var(--font-title); font-weight: 700; line-height: 1.3; }
.section-title { font-size: 2.2rem; text-align: center; margin-bottom: 0.75rem; color: var(--gray-900); }
.section-subtitle { text-align: center; color: var(--text-light); font-size: 1.05rem; margin-bottom: 3rem; max-width: 600px; margin-left: auto; margin-right: auto; }

/* === Buttons === */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 32px; border-radius: 50px; font-weight: 600; font-size: 0.95rem; transition: var(--transition); white-space: nowrap; letter-spacing: 0.3px; }
.btn-primary { background: var(--primary); color: var(--white); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-outline { border: 2px solid rgba(255,255,255,0.3); color: var(--white); background: transparent; }
.btn-outline:hover { border-color: var(--white); background: rgba(255,255,255,0.1); }
.btn-secondary { background: var(--dark-2); color: var(--white); }
.btn-secondary:hover { background: var(--dark-3); transform: translateY(-1px); }
.btn-whatsapp { background: #2d7d46; color: var(--white); }
.btn-whatsapp:hover { background: #236837; transform: translateY(-1px); }
.btn-sm { padding: 10px 24px; font-size: 0.85rem; }

/* === Header / Navigation === */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,0.95); backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--gray-100);
  transition: var(--transition);
}
.header.scrolled { box-shadow: var(--shadow); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo img { height: 48px; width: auto; }
.nav { display: flex; align-items: center; gap: 4px; }
.nav a { padding: 8px 16px; font-size: 0.88rem; font-weight: 500; color: var(--gray-700); border-radius: 8px; transition: var(--transition); }
.nav a:hover { color: var(--primary); background: var(--gray-50); }
.header-contacts { display: flex; align-items: center; gap: 16px; }
.header-phone { font-weight: 600; color: var(--gray-800); font-size: 0.95rem; }
.header-phone:hover { color: var(--primary); }
.header-whatsapp { background: #2d7d46; color: white; width: 38px; height: 38px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; transition: var(--transition); }
.header-whatsapp:hover { transform: scale(1.08); }
.burger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 5px; }
.burger span { width: 26px; height: 2px; background: var(--gray-800); border-radius: 2px; transition: var(--transition); }
.burger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.burger.active span:nth-child(2) { opacity: 0; }
.burger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* === Hero === */
.hero {
  min-height: 100vh; display: flex; align-items: center; position: relative;
  background: linear-gradient(160deg, rgba(26,26,46,0.92) 0%, rgba(30,30,50,0.88) 50%, rgba(36,36,56,0.85) 100%), url('../images/cnc_hero.png');
  background-size: cover;
  background-position: center;
  padding-top: 72px; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background: 
    repeating-linear-gradient(0deg, transparent, transparent 40px, rgba(255,255,255,0.02) 40px, rgba(255,255,255,0.02) 41px),
    repeating-linear-gradient(90deg, transparent, transparent 40px, rgba(255,255,255,0.02) 40px, rgba(255,255,255,0.02) 41px);
}
.hero::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 200px;
  background: linear-gradient(to top, var(--white), transparent);
}
.hero-content { position: relative; z-index: 1; max-width: 680px; color: var(--white); }
.hero-badge { display: inline-block; padding: 6px 18px; background: rgba(199,120,0,0.2); border-radius: 50px; font-size: 0.82rem; margin-bottom: 20px; border: 1px solid rgba(199,120,0,0.3); color: var(--primary-light); }
.hero h1 { font-size: 3rem; font-weight: 800; margin-bottom: 20px; line-height: 1.2; color: #f0f0f5; }
.hero h1 span { color: var(--primary-light); }
.hero p { font-size: 1.1rem; opacity: 0.75; margin-bottom: 36px; max-width: 540px; line-height: 1.8; }
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 40px; margin-top: 48px; padding-top: 28px; border-top: 1px solid rgba(255,255,255,0.08); }
.hero-stat-number { font-size: 1.8rem; font-weight: 800; font-family: var(--font-title); color: var(--primary-light); }
.hero-stat-label { font-size: 0.82rem; opacity: 0.9; color: #e0e0e8; margin-top: 2px; text-shadow: 0 1px 4px rgba(0,0,0,0.4); }

/* === Sections === */
.section { padding: 90px 0; }
.section-dark { background: var(--gray-900); color: var(--white); }
.section-light { background: var(--gray-50); }
.section-primary { background: linear-gradient(160deg, var(--dark) 0%, var(--dark-2) 100%); color: var(--white); }
.section-dark .section-title { color: var(--white); }
.section-dark .section-subtitle { color: rgba(255,255,255,0.55); }
.section-primary .section-title { color: #f0f0f5; }
.section-primary .section-subtitle { color: rgba(255,255,255,0.55); }

/* === Pain Points (Почему КБ-98) === */
.pain-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.pain-card { background: var(--white); border-radius: var(--radius); padding: 32px 28px; box-shadow: var(--shadow-sm); transition: var(--transition); border: 1px solid var(--gray-100); }
.pain-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--gray-200); }
.pain-icon { width: 52px; height: 52px; border-radius: 14px; background: linear-gradient(135deg, var(--dark-2), var(--dark)); display: flex; align-items: center; justify-content: center; font-size: 1.3rem; color: var(--primary-light); margin-bottom: 18px; }
.pain-card h3 { font-size: 1.1rem; margin-bottom: 8px; color: var(--gray-900); }
.pain-card .pain-problem { font-size: 0.85rem; color: var(--primary); font-weight: 500; margin-bottom: 6px; }
.pain-card .pain-solution { font-size: 0.92rem; color: var(--text-light); line-height: 1.7; }

/* === Services Grid === */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card { background: var(--white); border-radius: var(--radius); padding: 28px 24px; box-shadow: var(--shadow-sm); transition: var(--transition); border: 1px solid var(--gray-100); position: relative; overflow: hidden; }
.service-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--primary), var(--accent-light)); opacity: 0; transition: var(--transition); }
.service-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.service-card:hover::before { opacity: 1; }
.service-icon { width: 56px; height: 56px; border-radius: 14px; background: var(--gray-50); display: flex; align-items: center; justify-content: center; font-size: 1.4rem; color: var(--primary); margin-bottom: 16px; transition: var(--transition); }
.service-card:hover .service-icon { background: var(--dark); color: var(--primary-light); }
.service-card h3 { font-size: 1.1rem; margin-bottom: 8px; color: var(--gray-900); }
.service-card p { font-size: 0.88rem; color: var(--text-light); margin-bottom: 14px; line-height: 1.6; }
.service-link { color: var(--primary); font-weight: 500; font-size: 0.88rem; display: inline-flex; align-items: center; gap: 6px; transition: var(--transition); }
.service-link:hover { color: var(--accent); gap: 8px; }

/* === About / Why Us === */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-text h2 { font-size: 2.2rem; margin-bottom: 20px; }
.about-text p { color: var(--text-light); margin-bottom: 14px; font-size: 1rem; }
.about-features { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 24px; }
.about-feature { display: flex; align-items: center; gap: 10px; font-size: 0.92rem; }
.about-feature i { color: var(--primary-light); font-size: 1rem; }
.about-image { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
.about-image img { width: 100%; height: 100%; object-fit: cover; min-height: 400px; background: linear-gradient(135deg, var(--dark-2), var(--dark)); }

/* === Portfolio === */
.portfolio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.portfolio-item { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); position: relative; aspect-ratio: 4/3; background: var(--dark-2); }
.portfolio-overlay { position: absolute; bottom: 0; left: 0; right: 0; padding: 20px; background: linear-gradient(transparent, rgba(0,0,0,0.85)); color: var(--white); transform: translateY(100%); transition: var(--transition); }
.portfolio-item:hover .portfolio-overlay { transform: translateY(0); }
.portfolio-overlay h4 { font-size: 1rem; margin-bottom: 4px; }
.portfolio-overlay p { font-size: 0.82rem; opacity: 0.7; }

/* === Testimonials === */
.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testimonial-card { background: var(--white); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow-sm); border: 1px solid var(--gray-100); }
.testimonial-stars { color: #d4a017; margin-bottom: 12px; font-size: 0.9rem; }
.testimonial-text { font-size: 0.92rem; color: var(--text-light); line-height: 1.7; margin-bottom: 16px; font-style: italic; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-avatar { width: 42px; height: 42px; border-radius: 50%; background: var(--dark); display: flex; align-items: center; justify-content: center; color: var(--primary-light); font-weight: 700; font-size: 1rem; }
.testimonial-name { font-weight: 600; font-size: 0.92rem; }
.testimonial-role { font-size: 0.78rem; color: var(--gray-500); }

/* === Brands === */
.brands-grid { display: flex; justify-content: center; align-items: center; gap: 32px; flex-wrap: wrap; }
.brand-item { padding: 16px 28px; background: rgba(255,255,255,0.06); border-radius: var(--radius-sm); border: 1px solid rgba(255,255,255,0.08); font-weight: 600; font-size: 1.1rem; color: rgba(255,255,255,0.6); font-family: var(--font-title); letter-spacing: 1px; }

/* === FAQ === */
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item { border: 1px solid var(--gray-200); border-radius: var(--radius-sm); margin-bottom: 10px; overflow: hidden; }
.faq-question { padding: 18px 22px; display: flex; justify-content: space-between; align-items: center; cursor: pointer; font-weight: 500; font-size: 0.95rem; transition: var(--transition); background: var(--white); }
.faq-question:hover { background: var(--gray-50); }
.faq-question i { transition: var(--transition); color: var(--primary); font-size: 0.85rem; }
.faq-item.active .faq-question i { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-answer-inner { padding: 0 22px 16px; color: var(--text-light); font-size: 0.92rem; line-height: 1.7; }

/* === CTA Section === */
.cta { text-align: center; padding: 60px 0; }
.cta h2 { font-size: 2.2rem; margin-bottom: 14px; }
.cta p { font-size: 1.05rem; opacity: 0.7; margin-bottom: 28px; max-width: 480px; margin-left: auto; margin-right: auto; }

/* === Form === */
.form { max-width: 440px; margin: 0 auto; }
.form-group { margin-bottom: 14px; }
.form-input { width: 100%; padding: 14px 18px; border: 2px solid var(--gray-200); border-radius: var(--radius-sm); font-size: 0.95rem; transition: var(--transition); background: var(--white); }
.form-input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(199,120,0,0.08); }
.form-btn { width: 100%; padding: 14px; font-size: 1rem; }
.form-note { text-align: center; font-size: 0.78rem; color: var(--gray-500); margin-top: 12px; }
.form-note a { color: var(--primary); text-decoration: underline; }

/* === Contacts === */
.contacts-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contact-info h3 { font-size: 1.4rem; margin-bottom: 24px; }
.contact-item { display: flex; align-items: flex-start; gap: 16px; margin-bottom: 18px; }
.contact-icon { width: 46px; height: 46px; border-radius: 12px; background: var(--gray-50); display: flex; align-items: center; justify-content: center; font-size: 1.1rem; color: var(--primary); flex-shrink: 0; }
.contact-item h4 { font-size: 0.85rem; color: var(--gray-500); font-weight: 500; margin-bottom: 2px; }
.contact-item p { font-weight: 500; }
.contact-item a { color: var(--primary); }
.contact-item a:hover { color: var(--accent); }
.contact-map { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.contact-map iframe { width: 100%; height: 100%; min-height: 400px; border: 0; }

/* === Footer === */
.footer { background: var(--dark); color: rgba(255,255,255,0.6); padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
.footer-about .logo { margin-bottom: 16px; }
.footer-about p { font-size: 0.88rem; line-height: 1.7; opacity: 0.6; }
.footer h4 { color: #f0f0f5; font-size: 1rem; margin-bottom: 18px; }
.footer ul li { margin-bottom: 8px; }
.footer ul a { font-size: 0.88rem; opacity: 0.6; transition: var(--transition); }
.footer ul a:hover { opacity: 1; color: var(--primary-light); }
.footer-contacts li { display: flex; align-items: center; gap: 10px; font-size: 0.88rem; }
.footer-contacts li i { width: 18px; color: var(--primary-light); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); padding: 20px 0; margin-top: 40px; text-align: center; font-size: 0.82rem; opacity: 0.4; }

/* === Floating WhatsApp === */
.floating-whatsapp { position: fixed; bottom: 24px; right: 24px; z-index: 999; width: 56px; height: 56px; border-radius: 50%; background: #2d7d46; color: var(--white); display: flex; align-items: center; justify-content: center; font-size: 1.6rem; box-shadow: 0 4px 20px rgba(45,125,70,0.3); transition: var(--transition); }
.floating-whatsapp:hover { transform: scale(1.08); box-shadow: 0 6px 24px rgba(45,125,70,0.4); }

/* === Animations === */
.animate-on-scroll { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.animate-on-scroll.animated { opacity: 1; transform: translateY(0); }
.animate-on-scroll.delay-1 { transition-delay: 0.1s; }
.animate-on-scroll.delay-2 { transition-delay: 0.2s; }
.animate-on-scroll.delay-3 { transition-delay: 0.3s; }
.animate-on-scroll.delay-4 { transition-delay: 0.4s; }

/* === Page Header (for inner pages) === */
.page-header { padding: 130px 0 50px; background: linear-gradient(160deg, var(--dark) 0%, var(--dark-2) 100%); color: var(--white); text-align: center; }
.page-header h1 { font-size: 2.5rem; font-weight: 800; margin-bottom: 10px; color: #f0f0f5; }
.page-header p { font-size: 1.05rem; opacity: 0.6; max-width: 560px; margin: 0 auto; }
.breadcrumbs { margin-bottom: 14px; font-size: 0.85rem; opacity: 0.5; }
.breadcrumbs a { color: rgba(255,255,255,0.7); }
.breadcrumbs a:hover { color: var(--primary-light); }
.breadcrumbs span { color: rgba(255,255,255,0.3); }

/* === Service Detail Page === */
.service-detail { display: grid; grid-template-columns: 2fr 1fr; gap: 40px; }
.service-detail-content h2 { font-size: 1.7rem; margin-bottom: 18px; }
.service-detail-content p { color: var(--text-light); margin-bottom: 14px; line-height: 1.8; }
.service-detail-content ul { margin-bottom: 18px; }
.service-detail-content ul li { padding: 6px 0; padding-left: 22px; position: relative; color: var(--text-light); font-size: 0.95rem; }
.service-detail-content ul li::before { content: '✓'; position: absolute; left: 0; color: var(--primary); font-weight: 700; }
.service-sidebar-card { background: var(--gray-50); border-radius: var(--radius); padding: 24px; border: 1px solid var(--gray-200); }
.service-sidebar-card h3 { font-size: 1.1rem; margin-bottom: 14px; }
.service-sidebar-card .price-item { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--gray-200); font-size: 0.92rem; }
.service-sidebar-card .price-item:last-child { border-bottom: none; }
.service-sidebar-card .price-item .price { font-weight: 600; color: var(--primary); }
.service-sidebar-card .form { margin-top: 14px; }

/* === Blog === */
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.blog-card { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); background: var(--white); transition: var(--transition); }
.blog-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.blog-image { height: 200px; background: linear-gradient(135deg, var(--dark-2), var(--dark-3)); }
.blog-card-body { padding: 22px; }
.blog-card-body .blog-date { font-size: 0.78rem; color: var(--gray-500); margin-bottom: 6px; }
.blog-card-body h3 { font-size: 1.05rem; margin-bottom: 8px; }
.blog-card-body h3 a { color: var(--gray-900); transition: var(--transition); }
.blog-card-body h3 a:hover { color: var(--primary); }
.blog-card-body p { font-size: 0.88rem; color: var(--text-light); line-height: 1.6; }

/* === Blog Article === */
.article { max-width: 760px; margin: 0 auto; }
.article-header { text-align: center; margin-bottom: 36px; }
.article-header h1 { font-size: 2rem; margin-bottom: 10px; }
.article-meta { color: var(--gray-500); font-size: 0.85rem; }
.article-content { font-size: 1rem; line-height: 1.9; }
.article-content p { margin-bottom: 18px; color: var(--text-light); }
.article-content h2 { font-size: 1.4rem; margin-top: 32px; margin-bottom: 14px; }
.article-content h3 { font-size: 1.15rem; margin-top: 24px; margin-bottom: 10px; }
.article-content ul { margin-bottom: 18px; }
.article-content ul li { padding: 4px 0; padding-left: 20px; position: relative; color: var(--text-light); }
.article-content ul li::before { content: '•'; position: absolute; left: 0; color: var(--primary); font-weight: 700; }

/* === Services Page (all services) === */
.services-all-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }

/* === Responsive === */
@media (max-width: 1024px) {
  .pain-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .service-detail { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav { display: none; position: fixed; top: 72px; left: 0; right: 0; background: var(--white); flex-direction: column; padding: 16px; box-shadow: var(--shadow-lg); border-bottom: 1px solid var(--gray-200); }
  .nav.open { display: flex; }
  .nav a { padding: 12px 16px; width: 100%; }
  .burger { display: flex; }
  .header-contacts { gap: 10px; }
  .header-phone { font-size: 0.82rem; }
  .header-phone:last-child { display: none; }
  .hero h1 { font-size: 2rem; }
  .hero p { font-size: 0.95rem; }
  .hero-stats { flex-wrap: wrap; gap: 16px; }
  .hero-stat-number { font-size: 1.4rem; }
  .section-title { font-size: 1.6rem; }
  .section { padding: 56px 0; }
  .pain-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .portfolio-grid { grid-template-columns: 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .contacts-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .about-features { grid-template-columns: 1fr; }
  .page-header h1 { font-size: 1.8rem; }
  .services-all-grid { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .cta h2 { font-size: 1.6rem; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.5rem; }
  .hero-buttons { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
  .section-title { font-size: 1.3rem; }
  .container { padding: 0 16px; }
}