@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg-primary: #0D0D0D;
  --bg-secondary: #141414;
  --bg-tertiary: #1A1A1A;
  --bg-card: #1E1E1E;
  --bg-card-hover: #262626;
  --accent: #00B4D8;
  --accent-hover: #0096B7;
  --accent-glow: rgba(0, 180, 216, 0.12);
  --accent-glow-strong: rgba(0, 180, 216, 0.25);
  --text-primary: #F0F0F0;
  --text-secondary: #A0A0A0;
  --text-muted: #666;
  --border: #2A2A2A;
  --border-hover: #3A3A3A;
  --thermal-red: #FF4444;
  --thermal-yellow: #FFB800;
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --max-width: 1200px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --radius: 8px;
  --radius-lg: 12px;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-primary);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-hover); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

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

/* ========== NAVBAR ========== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(13, 13, 13, 0.85);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}
.navbar .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.nav-logo {
  font-size: 1.1rem; font-weight: 700; color: var(--text-primary);
  letter-spacing: -0.02em; display: flex; align-items: center; gap: 10px;
}
.nav-logo .logo-mark {
  width: 32px; height: 32px; background: var(--accent);
  border-radius: 6px; display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem; font-weight: 700; color: var(--bg-primary);
}
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a {
  color: var(--text-secondary); font-size: 0.9rem; font-weight: 500;
  transition: color var(--transition); position: relative;
}
.nav-links a:hover { color: var(--text-primary); }
.nav-links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px;
  background: var(--accent); transition: width var(--transition);
}
.nav-links a:hover::after { width: 100%; }

.lang-switch {
  display: flex; gap: 4px; margin-left: 16px;
  border-left: 1px solid var(--border); padding-left: 20px;
}
.lang-switch a {
  padding: 4px 10px; border-radius: 4px; font-size: 0.8rem;
  font-weight: 600; color: var(--text-muted); text-transform: uppercase;
  transition: all var(--transition); letter-spacing: 0.05em;
}
.lang-switch a:hover, .lang-switch a.active {
  color: var(--text-primary); background: var(--bg-card);
}
.lang-switch a.active { color: var(--accent); }

.hamburger {
  display: none; flex-direction: column; gap: 5px; cursor: pointer;
  background: none; border: none; padding: 8px;
}
.hamburger span {
  width: 24px; height: 2px; background: var(--text-primary);
  transition: all var(--transition); border-radius: 1px;
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ========== HERO ========== */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  overflow: hidden; padding-top: 72px;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background: url('../assets/images/hero-bg.png') center/cover no-repeat;
}
.hero-bg::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(13,13,13,0.7) 0%, rgba(13,13,13,0.85) 50%, var(--bg-primary) 100%);
}
.hero .container { position: relative; z-index: 1; }
.hero-content { max-width: 720px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px; border-radius: 20px;
  background: var(--accent-glow); border: 1px solid rgba(0,180,216,0.2);
  font-size: 0.8rem; font-weight: 600; color: var(--accent);
  text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 24px;
}
.hero-badge::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent); animation: pulse-dot 2s infinite;
}
.hero h1 {
  font-size: clamp(2.5rem, 5vw, 3.75rem); font-weight: 700;
  line-height: 1.1; letter-spacing: -0.03em; margin-bottom: 20px;
}
.hero h1 .accent { color: var(--accent); }
.hero-sub {
  font-size: clamp(1.05rem, 2vw, 1.25rem); color: var(--text-secondary);
  line-height: 1.6; margin-bottom: 40px; max-width: 560px;
}
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }

/* ========== BUTTONS ========== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: var(--radius);
  font-family: var(--font-primary); font-size: 0.95rem; font-weight: 600;
  cursor: pointer; transition: all var(--transition); border: none;
  text-decoration: none;
}
.btn-primary {
  background: var(--accent); color: var(--bg-primary);
  box-shadow: 0 0 20px var(--accent-glow);
}
.btn-primary:hover {
  background: var(--accent-hover); color: var(--bg-primary);
  box-shadow: 0 0 30px var(--accent-glow-strong);
  transform: translateY(-1px);
}
.btn-secondary {
  background: transparent; color: var(--text-primary);
  border: 1px solid var(--border-hover);
}
.btn-secondary:hover {
  border-color: var(--accent); color: var(--accent);
  background: var(--accent-glow);
}

/* ========== SECTIONS ========== */
section { padding: 100px 0; }
section:nth-child(even) { background: var(--bg-secondary); }

.section-label {
  display: inline-block; font-size: 0.75rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.12em; color: var(--accent);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem); font-weight: 700;
  letter-spacing: -0.02em; margin-bottom: 16px; line-height: 1.2;
}
.section-desc {
  font-size: 1.05rem; color: var(--text-secondary);
  max-width: 600px; line-height: 1.7; margin-bottom: 48px;
}
.section-header { margin-bottom: 56px; }
.section-header.center { text-align: center; }
.section-header.center .section-desc { margin-left: auto; margin-right: auto; }

/* ========== SERVICES ========== */
.services-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 32px;
}
.service-category {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 40px; position: relative;
  transition: border-color var(--transition);
}
.service-category:hover { border-color: var(--accent); }
.service-category::before {
  content: ''; position: absolute; top: 0; left: 32px; right: 32px;
  height: 2px; background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0; transition: opacity var(--transition);
}
.service-category:hover::before { opacity: 1; }
.service-icon {
  width: 48px; height: 48px; border-radius: var(--radius);
  background: var(--accent-glow); border: 1px solid rgba(0,180,216,0.15);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px; color: var(--accent);
}
.service-category h3 {
  font-size: 1.3rem; font-weight: 700; margin-bottom: 12px;
}
.service-category > p {
  font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6;
  margin-bottom: 24px;
}
.service-list { display: flex; flex-direction: column; gap: 10px; }
.service-list li {
  display: flex; align-items: center; gap: 10px;
  font-size: 0.9rem; color: var(--text-secondary);
  padding: 8px 12px; border-radius: 6px;
  transition: all var(--transition);
}
.service-list li:hover {
  background: rgba(255,255,255,0.03); color: var(--text-primary);
}
.service-list li svg { flex-shrink: 0; color: var(--accent); }

/* ========== INDUSTRIES ========== */
.industries-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}
.industry-card {
  padding: 24px; background: var(--bg-card);
  border: 1px solid var(--border); border-radius: var(--radius);
  display: flex; align-items: center; gap: 14px;
  transition: all var(--transition); cursor: default;
}
.industry-card:hover {
  border-color: var(--accent); transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}
.industry-card svg { color: var(--accent); flex-shrink: 0; }
.industry-card span { font-size: 0.9rem; font-weight: 500; }

/* ========== ABOUT ========== */
.about-content {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;
}
.about-text p { color: var(--text-secondary); margin-bottom: 16px; line-height: 1.7; }
.about-stats {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 32px;
}
.stat-card {
  padding: 24px; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius);
}
.stat-card .stat-value {
  font-family: var(--font-mono); font-size: 1.75rem; font-weight: 700;
  color: var(--accent); margin-bottom: 4px;
}
.stat-card .stat-label { font-size: 0.85rem; color: var(--text-secondary); }
.about-visual {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--border); aspect-ratio: 4/3;
}
.about-visual img { width: 100%; height: 100%; object-fit: cover; }

/* ========== WHY US ========== */
.why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.why-card {
  padding: 32px 24px; background: var(--bg-card);
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  text-align: center; transition: all var(--transition);
}
.why-card:hover {
  border-color: var(--accent); transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.4);
}
.why-icon {
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--accent-glow); border: 1px solid rgba(0,180,216,0.15);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px; color: var(--accent);
}
.why-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; }
.why-card p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6; }

/* ========== EQUIPMENT ========== */
.equipment-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.equipment-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
  transition: border-color var(--transition);
}
.equipment-card:hover { border-color: var(--accent); }
.equipment-img {
  width: 100%; aspect-ratio: 16/10; overflow: hidden;
  position: relative;
}
.equipment-img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.6s ease;
}
.equipment-card:hover .equipment-img img { transform: scale(1.03); }
.equipment-body { padding: 32px; }
.equipment-body h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 12px; }
.equipment-body > p {
  font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 20px; line-height: 1.6;
}
.equipment-specs {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
}
.spec-item {
  padding: 12px; background: var(--bg-secondary); border-radius: 6px;
  border: 1px solid var(--border);
}
.spec-item .spec-label {
  font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-muted); margin-bottom: 4px;
}
.spec-item .spec-value {
  font-family: var(--font-mono); font-size: 0.85rem;
  color: var(--accent); font-weight: 500;
}

/* ========== WORKFLOW ========== */
.workflow-steps {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  position: relative;
}
.workflow-steps::before {
  content: ''; position: absolute; top: 28px; left: 60px; right: 60px;
  height: 2px; background: var(--border);
}
.workflow-step { text-align: center; position: relative; padding: 0 16px; }
.step-number {
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--bg-card); border: 2px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px; font-family: var(--font-mono);
  font-size: 1rem; font-weight: 700; color: var(--accent);
  position: relative; z-index: 1;
  transition: all var(--transition);
}
.workflow-step:hover .step-number {
  border-color: var(--accent); background: var(--accent-glow);
  box-shadow: 0 0 20px var(--accent-glow);
}
.workflow-step h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.workflow-step p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.5; }

/* ========== CONTACT ========== */
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start;
}
.contact-form { display: flex; flex-direction: column; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label {
  font-size: 0.85rem; font-weight: 500; color: var(--text-secondary);
}
.form-group input, .form-group textarea, .form-group select {
  padding: 14px 16px; background: var(--bg-card);
  border: 1px solid var(--border); border-radius: var(--radius);
  color: var(--text-primary); font-family: var(--font-primary); font-size: 0.95rem;
  transition: border-color var(--transition); outline: none;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-group textarea { min-height: 120px; resize: vertical; }

.contact-info { display: flex; flex-direction: column; gap: 24px; }
.contact-info-card {
  padding: 24px; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); display: flex; align-items: flex-start; gap: 16px;
}
.contact-info-card svg { color: var(--accent); flex-shrink: 0; margin-top: 2px; }
.contact-info-card h4 { font-size: 0.95rem; font-weight: 600; margin-bottom: 4px; }
.contact-info-card p { font-size: 0.9rem; color: var(--text-secondary); }

/* ========== FOOTER ========== */
.footer {
  padding: 48px 0 24px; background: var(--bg-primary);
  border-top: 1px solid var(--border);
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px;
  margin-bottom: 40px;
}
.footer-brand p { color: var(--text-secondary); font-size: 0.9rem; margin-top: 12px; line-height: 1.6; }
.footer-col h4 {
  font-size: 0.8rem; 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; transition: color var(--transition);
}
.footer-col a:hover { color: var(--text-primary); }
.footer-bottom {
  padding-top: 24px; border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
}
.footer-bottom p { font-size: 0.8rem; color: var(--text-muted); }

/* ========== ANIMATIONS ========== */
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.fade-in {
  opacity: 1; transform: translateY(0);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
@media (prefers-reduced-motion: no-preference) {
  .fade-in.will-animate { opacity: 0; transform: translateY(28px); }
  .fade-in.visible { opacity: 1; transform: translateY(0); }
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  .why-grid { grid-template-columns: 1fr 1fr; }
  .workflow-steps { grid-template-columns: 1fr 1fr; gap: 32px; }
  .workflow-steps::before { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  section { padding: 64px 0; }
  .nav-links { display: none; }
  .nav-links.active {
    display: flex; flex-direction: column; position: absolute;
    top: 72px; left: 0; right: 0; background: rgba(13,13,13,0.98);
    padding: 24px; gap: 16px; border-bottom: 1px solid var(--border);
    backdrop-filter: blur(20px);
  }
  .lang-switch { border-left: none; padding-left: 0; margin-left: 0; }
  .hamburger { display: flex; }
  .services-grid { grid-template-columns: 1fr; }
  .equipment-grid { grid-template-columns: 1fr; }
  .about-content { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 2rem; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { text-align: center; justify-content: center; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}