:root {
  --main-bg: #0d1117;
  --secondary-bg: #161b22;
  --card-bg: #21262d;
  --accent-primary: #D72B3F;
  --accent-secondary: #B91C3C;
  --accent-hover: #DC2626;
  --text-primary: #f0f6fc;
  --text-secondary: #8b949e;
  --text-muted: #6e7681;
  --border-default: #30363d;
  --border-muted: #21262d;
}

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

body {
  background: var(--main-bg);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.5;
  overflow-x: hidden;
}

/* Welcome Screen */
.welcome-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: linear-gradient(135deg, #0d1117 0%, #161b22 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  transition: opacity 0.5s ease-out;
  padding: 20px;
}

.welcome-screen.fade-out {
  opacity: 0;
  pointer-events: none;
}

.welcome-logo {
  width: min(350px, 85vw);
  height: min(250px, 45vh);
  margin-bottom: clamp(30px, 8vw, 40px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.welcome-logo img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 4px 8px rgba(0,0,0,0.3));
}

.logo-placeholder {
  font-size: clamp(1.8rem, 6vw, 2rem);
  font-weight: 700;
  color: var(--accent-primary);
  letter-spacing: 2px;
  text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

.welcome-content {
  text-align: center;
  max-width: min(600px, 90vw);
  padding: 0 20px;
}

.welcome-content h1 {
  font-size: clamp(2.2rem, 7vw, 2.8rem);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: clamp(16px, 4vw, 20px);
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.welcome-content p {
  font-size: clamp(1.1rem, 4vw, 1.2rem);
  color: var(--text-secondary);
  margin-bottom: clamp(32px, 8vw, 40px);
  line-height: 1.6;
}

.enter-site-btn {
  background: var(--accent-primary);
  color: white;
  border: none;
  padding: clamp(16px, 4vw, 18px) clamp(32px, 8vw, 40px);
  font-size: clamp(1rem, 3.5vw, 1.1rem);
  font-weight: 600;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-transform: none;
  box-shadow: 0 6px 20px rgba(215, 43, 63, 0.4);
  min-height: 44px;
}

.enter-site-btn:hover, .enter-site-btn:active {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(215, 43, 63, 0.5);
}

/* Main Website */
.main-website {
  opacity: 0;
  transition: opacity 0.5s ease-in;
  display: none;
}

.main-website.show {
  opacity: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Header */
header {
  background: var(--secondary-bg);
  border-bottom: 1px solid var(--border-default);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: clamp(12px, 3vw, 16px) clamp(16px, 4vw, 32px);
  position: sticky;
  top: 0;
  z-index: 100;
  flex-wrap: wrap;
  box-shadow: 0 2px 12px rgba(0,0,0,0.3);
}

.header-logo {
  display: flex;
  align-items: center;
  gap: clamp(10px, 2.5vw, 12px);
  flex: 1;
}

.header-logo-img {
  width: clamp(75px, 18vw, 100px);
  height: clamp(55px, 14vw, 80px);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.header-logo-img img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 1px 3px rgba(0,0,0,0.3));
}

.header-title {
  font-size: clamp(1.4rem, 4vw, 1.8rem);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 1px;
  text-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

.header-nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, 3vw, 24px);
  flex-wrap: wrap;
}

nav {
  display: flex;
  gap: clamp(4px, 1vw, 8px);
  flex-wrap: wrap;
}

nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: clamp(0.85rem, 2.5vw, 0.95rem);
  font-weight: 500;
  padding: clamp(10px, 2.5vw, 12px) clamp(12px, 3vw, 16px);
  border-radius: 8px;
  transition: all 0.3s ease;
  white-space: nowrap;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

nav a:hover, nav a:active {
  color: var(--text-primary);
  background: var(--card-bg);
  transform: translateY(-1px);
}

nav a.active {
  color: white;
  background: var(--accent-primary);
  box-shadow: 0 2px 8px rgba(215, 43, 63, 0.3);
}

.lang-switch {
  background: var(--card-bg);
  border: 1px solid var(--border-default);
  color: var(--text-secondary);
  padding: clamp(10px, 2.5vw, 12px) clamp(12px, 3vw, 16px);
  border-radius: 8px;
  cursor: pointer;
  font-size: clamp(0.8rem, 2vw, 0.9rem);
  font-weight: 500;
  transition: all 0.3s ease;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lang-switch:hover, .lang-switch:active {
  color: white;
  border-color: var(--accent-primary);
  background: var(--accent-primary);
  transform: translateY(-1px);
}

/* Mobile Menu - Hidden by default */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 30px;
  height: 30px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
}

.mobile-menu-btn span {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
  transform-origin: center;
}

.mobile-menu-btn.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: -100%;
  width: 280px;
  height: 100vh;
  background: var(--secondary-bg);
  border-right: 1px solid var(--border-default);
  transition: left 0.3s ease;
  z-index: 1000;
  padding: 80px 0 20px 0;
  box-shadow: 2px 0 10px rgba(0,0,0,0.3);
}

.mobile-menu.active {
  left: 0;
}

.mobile-menu a {
  display: block;
  padding: 16px 24px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 1.1rem;
  font-weight: 500;
  border-bottom: 1px solid var(--border-default);
  transition: all 0.2s ease;
}

.mobile-menu a:hover,
.mobile-menu a.active {
  background: var(--accent-primary);
  color: white;
  transform: translateX(8px);
}

.mobile-menu .mobile-lang-switch {
  margin: 20px 24px;
  padding: 12px 16px;
  background: var(--card-bg);
  border: 1px solid var(--border-default);
  border-radius: 6px;
  color: var(--text-secondary);
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.mobile-menu .mobile-lang-switch:hover {
  background: var(--accent-primary);
  color: white;
}

.menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 999;
}

.menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Main Content */
main {
  flex: 1;
  padding: clamp(24px, 6vw, 48px) clamp(16px, 4vw, 32px);
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.page-header, .hero {
  text-align: center;
  margin-bottom: clamp(40px, 10vw, 80px);
  padding: clamp(20px, 5vw, 0);
}

.page-header h1, .hero h1 {
  font-size: clamp(2.2rem, 8vw, 3.2rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: clamp(16px, 4vw, 20px);
  letter-spacing: -0.025em;
  line-height: 1.1;
  word-wrap: break-word;
}

.hero .highlight, .page-header .highlight {
  color: var(--accent-primary);
  text-shadow: 0 2px 4px rgba(215, 43, 63, 0.3);
}

.page-header p, .hero p {
  font-size: clamp(1.1rem, 3.5vw, 1.2rem);
  color: var(--text-secondary);
  margin-bottom: clamp(32px, 8vw, 40px);
  max-width: min(700px, 90vw);
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

.cta-button {
  background: var(--accent-primary);
  color: white;
  border: none;
  padding: clamp(16px, 4vw, 18px) clamp(24px, 6vw, 32px);
  font-size: clamp(1rem, 3vw, 1.1rem);
  font-weight: 600;
  border-radius: 12px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: all 0.3s ease;
  box-shadow: 0 4px 16px rgba(215, 43, 63, 0.3);
  text-align: center;
  min-height: 44px;
  touch-action: manipulation;
}

.cta-button:hover, .cta-button:active {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(215, 43, 63, 0.4);
}

.submit-btn {
  background: linear-gradient(45deg, #25D366, #128C7E);
  color: white;
  border: none;
  padding: clamp(16px, 4vw, 18px) clamp(24px, 6vw, 32px);
  font-size: clamp(1rem, 3vw, 1.1rem);
  font-weight: 600;
  border-radius: 12px;
  cursor: pointer;
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.3);
  text-align: center;
  min-height: 44px;
  touch-action: manipulation;
  width: 100%;
}

.submit-btn:hover, .submit-btn:active {
  background: linear-gradient(45deg, #20BA5A, #0F7A6B);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
}

.btn-icon {
  font-size: 1.2em;
}

.services-overview, .services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr));
  gap: clamp(20px, 5vw, 24px);
  margin-bottom: clamp(60px, 12vw, 80px);
}

.service-card, .service-item {
  background: var(--card-bg);
  border: 1px solid var(--border-default);
  border-radius: 12px;
  padding: clamp(24px, 6vw, 32px);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.service-card::before, .service-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--accent-primary);
  transform: scaleY(0);
  transition: transform 0.3s ease;
}

.service-card:hover::before, .service-item:hover::before,
.service-card:active::before, .service-item:active::before {
  transform: scaleY(1);
}

.service-card:hover, .service-item:hover,
.service-card:active, .service-item:active {
  border-color: var(--accent-primary);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(215, 43, 63, 0.2);
}

.service-card h3, .service-item h2 {
  font-size: clamp(1.2rem, 4vw, 1.4rem);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: clamp(12px, 3vw, 16px);
  line-height: 1.3;
}

.service-card p {
  color: var(--text-secondary);
  font-size: clamp(0.95rem, 2.5vw, 1rem);
  line-height: 1.6;
}

.service-item ul {
  list-style: none;
  padding: 0;
}

.service-item li {
  color: var(--text-secondary);
  font-size: clamp(0.9rem, 2.5vw, 0.95rem);
  line-height: 1.6;
  margin-bottom: clamp(12px, 3vw, 14px);
  padding-left: 20px;
  position: relative;
}

.service-item li::before {
  content: '•';
  color: var(--accent-primary);
  font-weight: bold;
  position: absolute;
  left: 0;
  font-size: 1.2em;
}

.about-section, .cta-section {
  background: var(--card-bg);
  border: 1px solid var(--border-default);
  border-radius: 12px;
  padding: clamp(32px, 8vw, 40px);
  text-align: center;
  position: relative;
  overflow: hidden;
  margin-bottom: clamp(40px, 8vw, 60px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

.about-section::before, .cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-hover));
}

.about-section h2, .cta-section h2 {
  font-size: clamp(1.6rem, 5vw, 2rem);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: clamp(16px, 4vw, 20px);
  line-height: 1.2;
}

.about-section p, .cta-section p {
  color: var(--text-secondary);
  font-size: clamp(1rem, 3vw, 1.1rem);
  line-height: 1.6;
  max-width: min(800px, 90vw);
  margin: 0 auto;
  margin-bottom: clamp(24px, 6vw, 30px);
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 6vw, 40px);
  margin-bottom: clamp(40px, 10vw, 60px);
}

.contact-info, .contact-form {
  background: var(--card-bg);
  border: 1px solid var(--border-default);
  border-radius: 12px;
  padding: clamp(24px, 6vw, 32px);
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.contact-info::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--accent-primary);
}

.contact-form::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-hover));
}

.contact-info h2, .contact-form h2 {
  font-size: clamp(1.4rem, 4vw, 1.6rem);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: clamp(24px, 6vw, 30px);
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: clamp(16px, 4vw, 20px);
  margin-bottom: clamp(24px, 6vw, 28px);
  padding: clamp(16px, 4vw, 20px);
  background: var(--secondary-bg);
  border-radius: 8px;
  transition: all 0.3s ease;
}

.info-item:hover, .info-item:active {
  background: var(--main-bg);
  transform: translateX(4px);
}

.info-icon {
  width: clamp(40px, 10vw, 50px);
  height: clamp(40px, 10vw, 50px);
  border-radius: 50%;
  background: #30363d;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: clamp(1.1rem, 3vw, 1.3rem);
  flex-shrink: 0;
}

.info-content {
  flex: 1;
}

.info-content strong {
  color: var(--text-primary);
  font-size: clamp(1rem, 2.5vw, 1.1rem);
  display: block;
  margin-bottom: 4px;
}

.info-content span {
  color: var(--text-secondary);
  font-size: clamp(0.9rem, 2.2vw, 1rem);
  line-height: 1.4;
}

.form-group {
  margin-bottom: clamp(20px, 5vw, 25px);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 4vw, 20px);
}

label {
  font-size: clamp(0.9rem, 2.2vw, 1rem);
  color: var(--text-primary);
  display: block;
  margin-bottom: clamp(6px, 1.5vw, 8px);
  font-weight: 500;
}

input[type="text"], 
input[type="email"], 
input[type="tel"], 
textarea, 
select {
  width: 100%;
  padding: clamp(14px, 3.5vw, 16px) clamp(16px, 4vw, 18px);
  font-size: clamp(0.95rem, 2.5vw, 1rem);
  border: 2px solid var(--border-default);
  border-radius: 8px;
  background: var(--secondary-bg);
  color: var(--text-primary);
  transition: all 0.3s ease;
  font-family: inherit;
  min-height: 44px;
  touch-action: manipulation;
}

input:focus, 
textarea:focus, 
select:focus {
  outline: none;
  border-color: var(--accent-primary);
  background: var(--main-bg);
  box-shadow: 0 0 0 3px rgba(215, 43, 63, 0.1);
  transform: translateY(-1px);
}

textarea {
  resize: vertical;
  min-height: clamp(100px, 25vw, 120px);
  font-family: inherit;
}

select {
  cursor: pointer;
}

.emergency-contact {
  background: var(--accent-primary);
  border-radius: 12px;
  padding: clamp(24px, 6vw, 32px);
  text-align: center;
  grid-column: 1 / -1;
  position: relative;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(215, 43, 63, 0.4);
}

.emergency-contact::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  animation: shimmer 3s infinite;
}

@keyframes shimmer {
  0% { left: -100%; }
  100% { left: 100%; }
}

.emergency-contact h3 {
  color: white;
  font-size: clamp(1.3rem, 4vw, 1.6rem);
  margin-bottom: clamp(12px, 3vw, 16px);
  font-weight: 600;
}

.emergency-contact p {
  color: rgba(255,255,255,0.9);
  font-size: clamp(1rem, 2.5vw, 1.1rem);
  margin-bottom: clamp(16px, 4vw, 20px);
  line-height: 1.5;
}

.emergency-phone {
  color: white;
  font-size: clamp(1.2rem, 4vw, 1.4rem);
  font-weight: 700;
  letter-spacing: 1px;
  text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

footer {
  background: var(--secondary-bg);
  border-top: 1px solid var(--border-default);
  padding: clamp(24px, 6vw, 32px);
  text-align: center;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(12px, 3vw, 16px);
  margin-bottom: clamp(20px, 5vw, 24px);
  padding-bottom: clamp(16px, 4vw, 20px);
  border-bottom: 1px solid var(--border-default);
}

.footer-logo-img {
  width: clamp(60px, 15vw, 85px);
  height: clamp(45px, 11vw, 64px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer-logo-img img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
}

.footer-logo-text {
  font-size: clamp(1.5rem, 4vw, 1.8rem);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 1px;
}

.footer-tagline {
  color: var(--text-secondary);
  font-size: clamp(0.9rem, 2.2vw, 1rem);
  font-style: italic;
  margin-top: 4px;
}

.contact-info-footer {
  color: var(--text-secondary);
  font-size: clamp(0.85rem, 2.2vw, 0.9rem);
  line-height: 1.8;
  margin-bottom: clamp(16px, 4vw, 20px);
}

.contact-info-footer strong {
  color: var(--accent-primary);
}

.copyright {
  color: var(--text-muted);
  font-size: clamp(0.8rem, 2vw, 0.85rem);
  padding-top: clamp(16px, 4vw, 20px);
  border-top: 1px solid var(--border-default);
}

/* Mobile Styles */
@media (max-width: 480px) {
  header {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    gap: 0;
    min-height: 70px;
  }
  
  .header-logo {
    gap: 12px;
    margin-bottom: 0;
    justify-content: flex-start;
    align-items: center;
  }
  
  .header-logo-img {
    width: 55px !important;
    height: 41px !important;
    flex-shrink: 0;
  }
  
  .header-title {
    font-size: 1.4rem !important;
    font-weight: 700;
    text-align: left;
  }
  
  .header-nav nav {
    display: none;
  }
  
  .lang-switch {
    display: none;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
  
  .mobile-menu {
    display: block;
  }
  
  main {
    padding: 20px 16px;
  }
  
  .services-overview, .services-grid {
    grid-template-columns: 1fr;
    gap: 16px;
    margin-bottom: 40px;
  }
  
  .service-card, .service-item {
    padding: 24px 20px;
  }
  
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .form-row {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  input, textarea, select {
    padding: 16px 18px;
    font-size: 1rem;
  }
  
  .footer-logo {
    flex-direction: column;
    gap: 12px;
    text-align: center;
    padding: 20px 0;
  }
  
  .footer-logo-img {
    width: 70px !important;
    height: 52px !important;
  }
}

@media (min-width: 600px) {
  .form-row {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  }
}

@media (min-width: 768px) {
  .contact-layout {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  }
}

@media (min-width: 1200px) {
  .services-overview, .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .contact-layout {
    grid-template-columns: 1fr 1fr;
  }
}