/* ============================================================
   NMS 4.0 — Операционная система для бизнеса
   Стиль: архитектурный, авторитетный, тёмная тема + золото
   ============================================================ */

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg-primary: #0b0c10;
  --bg-secondary: #11141a;
  --bg-card: #161b22;
  --bg-elevated: #1c2330;
  --gold: #c9a84c;
  --gold-light: #e8c96a;
  --gold-dark: #a78a36;
  --text-primary: #e8edf5;
  --text-secondary: #8b95a5;
  --text-muted: #5a6477;
  --accent-red: #e74c3c;
  --accent-green: #2ecc71;
  --border: #1e293b;
  --border-gold: rgba(201, 168, 76, 0.3);
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --container: 1200px;
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--gold); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--gold-light); }

img { max-width: 100%; height: auto; }
ul { list-style: none; }

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

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); margin-bottom: 16px; }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }

.section-title {
  text-align: center;
  margin-bottom: 48px;
}
.section-title h2 {
  color: var(--text-primary);
}
.section-title p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 700px;
  margin: 0 auto;
}

.gold-accent { color: var(--gold); }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  font-family: var(--font);
  text-decoration: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: #0b0c10;
  box-shadow: 0 4px 20px rgba(201, 168, 76, 0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(201, 168, 76, 0.4);
  color: #0b0c10;
}
.btn-outline {
  background: transparent;
  border: 1.5px solid var(--gold);
  color: var(--gold);
}
.btn-outline:hover {
  background: var(--gold);
  color: #0b0c10;
  transform: translateY(-2px);
}
.btn-secondary {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-primary);
}
.btn-secondary:hover {
  border-color: var(--gold);
  color: var(--gold);
  transform: translateY(-2px);
}

/* --- Header / Nav --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(11, 12, 16, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.header.scrolled {
  background: rgba(11, 12, 16, 0.98);
}
.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--text-primary);
  text-decoration: none;
}
.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1.1rem;
  color: #0b0c10;
}
.logo span { color: var(--gold); }

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
}
.nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gold);
  transition: var(--transition);
}
.nav a:hover { color: var(--text-primary); }
.nav a:hover::after { width: 100%; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.nav-toggle span {
  width: 26px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 50% at 30% 50%, rgba(201, 168, 76, 0.06), transparent 60%),
              radial-gradient(ellipse 40% 40% at 80% 30%, rgba(201, 168, 76, 0.04), transparent 50%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(201, 168, 76, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201, 168, 76, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, black, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, black, transparent 80%);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-content h1 {
  margin-bottom: 20px;
}
.hero-content p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 540px;
}
.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

/* NMS Cube */
.nms-cube {
  width: 320px;
  height: 320px;
  position: relative;
  perspective: 800px;
}
.cube-inner {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  animation: rotateCube 20s infinite linear;
}
.cube-face {
  position: absolute;
  width: 200px;
  height: 200px;
  border: 1.5px solid var(--border-gold);
  border-radius: 16px;
  background: rgba(22, 27, 34, 0.85);
  backdrop-filter: blur(8px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 16px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  box-shadow: 0 0 40px rgba(201, 168, 76, 0.05);
}
.cube-face .num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--gold);
  margin-bottom: 4px;
}
.cube-face .label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}
.cube-front  { transform: translateZ(100px); }
.cube-back   { transform: rotateY(180deg) translateZ(100px); }
.cube-right  { transform: rotateY(90deg) translateZ(100px); }
.cube-left   { transform: rotateY(-90deg) translateZ(100px); }
.cube-top    { transform: rotateX(90deg) translateZ(100px); }
.cube-bottom { transform: rotateX(-90deg) translateZ(100px); }

@keyframes rotateCube {
  0%   { transform: rotateX(-15deg) rotateY(0deg); }
  100% { transform: rotateX(-15deg) rotateY(360deg); }
}

/* --- Pain Section --- */
.pain {
  padding: 100px 0;
  background: var(--bg-secondary);
}
.pain-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.pain-text h2 {
  margin-bottom: 20px;
}
.pain-text p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 24px;
}
.pain-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.pain-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}
.pain-list li .icon {
  width: 24px;
  height: 24px;
  min-width: 24px;
  border-radius: 50%;
  background: rgba(231, 76, 60, 0.15);
  color: var(--accent-red);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  margin-top: 2px;
}
.pain-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  transition: var(--transition);
}
.stat-card:hover {
  border-color: var(--border-gold);
  transform: translateY(-4px);
}
.stat-card .num {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--gold);
}
.stat-card .desc {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 4px;
}

/* --- Solution (12 blocks) --- */
.solution {
  padding: 100px 0;
}
.blocks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 40px;
}
.block-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: var(--transition);
  cursor: default;
}
.block-card:hover {
  border-color: var(--border-gold);
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}
.block-card .num {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 8px;
}
.block-card h3 {
  font-size: 1.1rem;
  margin-bottom: 6px;
}
.block-card .subtitle {
  color: var(--gold-light);
  font-size: 0.85rem;
  margin-bottom: 8px;
  font-style: italic;
}
.block-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* --- Process Section --- */
.process {
  padding: 100px 0;
  background: var(--bg-secondary);
}
.process-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 800px;
  margin: 40px auto 0;
  position: relative;
}
.process-timeline::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--gold), var(--border));
}
.process-step {
  display: flex;
  gap: 28px;
  padding: 20px 0;
  position: relative;
}
.process-step .step-num {
  width: 56px;
  height: 56px;
  min-width: 56px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px solid var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--gold);
  z-index: 1;
  position: relative;
}
.process-step .step-content h3 {
  margin-bottom: 4px;
  font-size: 1.1rem;
}
.process-step .step-content p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* --- Segmentation --- */
.segments {
  padding: 100px 0;
}
.segments-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 40px;
}
.segment-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  transition: var(--transition);
}
.segment-card:hover {
  border-color: var(--border-gold);
  transform: translateY(-4px);
}
.segment-card .icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}
.segment-card h3 {
  margin-bottom: 8px;
}
.segment-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 20px;
}

/* --- Cases / Social Proof --- */
.cases {
  padding: 100px 0;
  background: var(--bg-secondary);
}
.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
  margin-top: 40px;
}
.case-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: var(--transition);
}
.case-card:hover {
  border-color: var(--border-gold);
  transform: translateY(-4px);
}
.case-card .case-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(201, 168, 76, 0.1);
  border: 1px solid var(--border-gold);
  border-radius: 20px;
  font-size: 0.75rem;
  color: var(--gold);
  margin-bottom: 12px;
}
.case-card h3 {
  margin-bottom: 12px;
  font-size: 1.15rem;
}
.case-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 16px 0;
}
.case-metric {
  background: var(--bg-elevated);
  border-radius: var(--radius-sm);
  padding: 12px;
  text-align: center;
}
.case-metric .val {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--gold);
}
.case-metric .lbl {
  font-size: 0.75rem;
  color: var(--text-muted);
}
.case-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* --- CTA Section --- */
.cta {
  padding: 100px 0;
  text-align: center;
  position: relative;
}
.cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 50% 60% at 50% 50%, rgba(201, 168, 76, 0.06), transparent 70%);
  pointer-events: none;
}
.cta h2 {
  max-width: 700px;
  margin: 0 auto 16px;
}
.cta p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 32px;
}
.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Footer --- */
.footer {
  padding: 60px 0 30px;
  border-top: 1px solid var(--border);
  background: var(--bg-secondary);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-about h3 {
  margin-bottom: 12px;
}
.footer-about p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  max-width: 340px;
}
.footer-col h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  color: var(--text-secondary);
  font-size: 0.9rem;
  padding: 4px 0;
}
.footer-col a:hover { color: var(--gold); }
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* ============================================================
   INNER PAGES
   ============================================================ */
.page-header {
  padding: 140px 0 60px;
  text-align: center;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}
.page-header h1 {
  margin-bottom: 12px;
}
.page-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 650px;
  margin: 0 auto;
}

.page-section {
  padding: 80px 0;
}

/* --- NMS Details Page --- */
.nms-detail-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
  padding: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}
.nms-detail-block:hover {
  border-color: var(--border-gold);
}
.nms-detail-block:last-child { margin-bottom: 0; }
.nms-detail-block .block-info h3 {
  margin-bottom: 8px;
}
.nms-detail-block .block-info .num {
  font-size: 0.8rem;
  color: var(--gold);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.nms-detail-block .block-info .subtitle {
  color: var(--gold-light);
  font-style: italic;
  margin-bottom: 12px;
}
.nms-detail-block .block-info p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}
.nms-detail-block .block-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  opacity: 0.6;
}

/* --- Audit Page --- */
.audit-steps {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  margin: 40px 0;
}
.audit-step {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
}
.audit-step .icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
}
.audit-step h3 { margin-bottom: 8px; }
.audit-step p { color: var(--text-secondary); font-size: 0.9rem; }

.audit-result {
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius);
  padding: 40px;
  margin: 40px 0;
  text-align: center;
}
.audit-result h3 { color: var(--gold); margin-bottom: 12px; }
.audit-result p { color: var(--text-secondary); }
.audit-result ul {
  display: inline-block;
  text-align: left;
  margin: 16px auto;
}
.audit-result ul li {
  color: var(--text-secondary);
  padding: 6px 0;
  padding-left: 24px;
  position: relative;
}
.audit-result ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--gold);
}

/* --- Blog Page --- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
  margin-top: 40px;
}
.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  transition: var(--transition);
}
.blog-card:hover {
  border-color: var(--border-gold);
  transform: translateY(-4px);
}
.blog-card a:hover h3 {
  color: var(--gold);
}
.blog-card h3 {
  transition: var(--transition);
}
.blog-card .blog-tag {
  display: inline-block;
  padding: 3px 10px;
  background: rgba(201, 168, 76, 0.1);
  border-radius: 4px;
  font-size: 0.7rem;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}
.blog-card h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}
.blog-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 16px;
}
.blog-card .blog-meta {
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* --- Contact Page --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.contact-info h3 {
  margin-bottom: 16px;
}
.contact-info p {
  color: var(--text-secondary);
  margin-bottom: 24px;
}
.contact-info .contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  color: var(--text-secondary);
}
.contact-info .contact-item .ci-icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  border-radius: 50%;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
}
.contact-form .form-group {
  margin-bottom: 20px;
}
.contact-form label {
  display: block;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 6px;
  font-weight: 500;
}
.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 0.95rem;
  transition: var(--transition);
  outline: none;
}
.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(201, 168, 76, 0.1);
}
.contact-form textarea {
  min-height: 120px;
  resize: vertical;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-visual { display: none; }
  .pain-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .nms-detail-block {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav { display: none; }
  .nav-toggle { display: flex; }
  .nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border);
    padding: 20px 24px;
    gap: 16px;
  }
  .pain-stats { grid-template-columns: 1fr; }
  .blocks-grid { grid-template-columns: 1fr; }
  .segments-grid { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .hero { padding: 100px 0 60px; }
  .page-header { padding: 110px 0 40px; }
  h1 { font-size: 1.8rem; }
  h2 { font-size: 1.5rem; }
  .process-timeline::before { left: 20px; }
  .process-step .step-num { width: 40px; height: 40px; min-width: 40px; font-size: 0.9rem; }
  .audit-result { padding: 24px; }
}

@media (max-width: 480px) {
  .hero-buttons { flex-direction: column; }
  .cta-buttons { flex-direction: column; align-items: center; }
  .btn { width: 100%; justify-content: center; }
}

/* --- Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}