/* ========================================
   Про мастер Плюс - Основные стили
   ======================================== */

/* CSS Variables */
:root {
  --primary-color: #ff6b35;
  --secondary-color: #f7931e;
  --accent-color: #2c3e50;
  --dark-color: #1a1a2e;
  --light-color: #f8f9fa;
  --gradient-primary: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
  --gradient-dark: linear-gradient(135deg, #1a1a2e 0%, #2c3e50 100%);
  --gradient-light: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  --shadow-soft: 0 10px 40px rgba(0, 0, 0, 0.1);
  --shadow-hard: 0 20px 60px rgba(0, 0, 0, 0.2);
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --border-radius: 12px;
}

/* Construction 3D Background Pattern */
.construction-bg {
  background: 
    linear-gradient(135deg, rgba(26, 26, 46, 0.97) 0%, rgba(44, 62, 80, 0.95) 50%, rgba(26, 26, 46, 0.98) 100%),
    url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 0h50v50H0zM50 50h50v50H50z' fill='%23ffffff' fill-opacity='0.03'/%3E%3C/svg%3E"),
    linear-gradient(135deg, #1a1a2e 0%, #16213e 25%, #0f3460 50%, #16213e 75%, #1a1a2e 100%);
  background-attachment: fixed;
  position: relative;
}

.construction-bg::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 80%, rgba(255, 107, 53, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(247, 147, 30, 0.06) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(255, 107, 53, 0.04) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* 3D Geometric Construction Pattern */
.construction-pattern {
  position: relative;
}

.construction-pattern::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(30deg, rgba(255,107,53,0.03) 12%, transparent 12.5%, transparent 87%, rgba(255,107,53,0.03) 87.5%, rgba(255,107,53,0.03)),
    linear-gradient(150deg, rgba(255,107,53,0.03) 12%, transparent 12.5%, transparent 87%, rgba(255,107,53,0.03) 87.5%, rgba(255,107,53,0.03)),
    linear-gradient(30deg, rgba(255,107,53,0.03) 12%, transparent 12.5%, transparent 87%, rgba(255,107,53,0.03) 87.5%, rgba(255,107,53,0.03)),
    linear-gradient(150deg, rgba(255,107,53,0.03) 12%, transparent 12.5%, transparent 87%, rgba(255,107,53,0.03) 87.5%, rgba(255,107,53,0.03)),
    linear-gradient(60deg, rgba(247,147,30,0.02) 25%, transparent 25.5%, transparent 75%, rgba(247,147,30,0.02) 75%, rgba(247,147,30,0.02)),
    linear-gradient(60deg, rgba(247,147,30,0.02) 25%, transparent 25.5%, transparent 75%, rgba(247,147,30,0.02) 75%, rgba(247,147,30,0.02));
  background-size: 80px 140px;
  background-position: 0 0, 0 0, 40px 70px, 40px 70px, 0 0, 40px 70px;
  opacity: 0.6;
  pointer-events: none;
  z-index: 1;
}

/* Modern Grid Background */
.modern-grid-bg {
  background: 
    linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #1a1a2e 100%);
  position: relative;
  overflow: hidden;
}

.modern-grid-bg::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background-image: 
    linear-gradient(rgba(255, 107, 53, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 107, 53, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  transform: perspective(500px) rotateX(60deg);
  transform-origin: center center;
  pointer-events: none;
}

.modern-grid-bg::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(ellipse at 30% 20%, rgba(255, 107, 53, 0.1) 0%, transparent 40%),
    radial-gradient(ellipse at 70% 80%, rgba(247, 147, 30, 0.08) 0%, transparent 40%);
  pointer-events: none;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--dark-color);
  background: var(--light-color);
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-smooth);
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Custom Cursor */
.cursor {
  width: 20px;
  height: 20px;
  border: 2px solid var(--primary-color);
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  transition: transform 0.1s ease;
  transform: translate(-50%, -50%);
}

.cursor-follower {
  width: 40px;
  height: 40px;
  background: rgba(255, 107, 53, 0.1);
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: 9998;
  transition: transform 0.3s ease;
  transform: translate(-50%, -50%);
}

/* Preloader */
.preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--dark-color);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 10000;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.hidden {
  opacity: 0;
  visibility: hidden;
}

.preloader-spinner {
  width: 60px;
  height: 60px;
  border: 4px solid rgba(255, 107, 53, 0.3);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 20px 0;
  transition: var(--transition-smooth);
  background: transparent;
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-soft);
  padding: 15px 0;
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.5rem;
  font-weight: 700;
  color: white;
}

.header.scrolled .logo {
  color: var(--dark-color);
}

.logo-icon {
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
}

.nav-menu {
  display: flex;
  gap: 35px;
}

.nav-link {
  color: white;
  font-weight: 500;
  position: relative;
  padding: 5px 0;
}

.header.scrolled .nav-link {
  color: var(--dark-color);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: var(--transition-smooth);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.header-contact {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 5px;
}

.header-phone {
  font-size: 1.1rem;
  font-weight: 700;
  color: white;
}

.header.scrolled .header-phone {
  color: var(--dark-color);
}

.header-hours {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
}

.header.scrolled .header-hours {
  color: rgba(0, 0, 0, 0.6);
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 10px;
}

.mobile-menu-btn span {
  width: 30px;
  height: 3px;
  background: white;
  transition: var(--transition-smooth);
  border-radius: 2px;
}

.header.scrolled .mobile-menu-btn span {
  background: var(--dark-color);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--gradient-dark);
}

.hero-video-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  opacity: 0.3;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(26, 26, 46, 0.9) 0%, rgba(44, 62, 80, 0.8) 100%);
  z-index: 2;
}

#particles-js {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 3;
}

.hero-content {
  position: relative;
  z-index: 4;
  text-align: center;
  color: white;
  max-width: 900px;
  padding: 0 30px;
}

.hero-badge {
  display: inline-block;
  background: rgba(255, 107, 53, 0.2);
  border: 1px solid var(--primary-color);
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.9rem;
  margin-bottom: 30px;
  animation: fadeInDown 0.8s ease;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 25px;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-title span {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 40px;
  animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.6s both;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 35px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: var(--transition-smooth);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 10px 30px rgba(255, 107, 53, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 40px rgba(255, 107, 53, 0.4);
}

.btn-secondary {
  background: transparent;
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
  background: white;
  color: var(--dark-color);
  border-color: white;
}

/* Section Styles */
.section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
}

.section-label {
  display: inline-block;
  background: rgba(255, 107, 53, 0.1);
  color: var(--primary-color);
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 15px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--dark-color);
  margin-bottom: 20px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: #666;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 30px;
}

/* Features Section */
.features {
  background: white;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.feature-card {
  background: var(--gradient-light);
  padding: 40px 30px;
  border-radius: var(--border-radius);
  text-align: center;
  transition: var(--transition-smooth);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-soft);
}

.feature-icon {
  width: 80px;
  height: 80px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 25px;
  font-size: 2rem;
  color: white;
}

.feature-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 15px;
  color: var(--dark-color);
}

.feature-text {
  color: #666;
  line-height: 1.8;
}

/* Services Section */
.services {
  background: var(--gradient-light);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
}

.service-card {
  background: white;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: var(--transition-smooth);
  transform-style: preserve-3d;
  perspective: 1000px;
}

.service-card:hover {
  transform: rotateY(5deg) rotateX(5deg) translateY(-10px);
  box-shadow: var(--shadow-hard);
}

.service-image {
  height: 250px;
  background: var(--gradient-primary);
  position: relative;
  overflow: hidden;
}

.service-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.service-card:hover .service-image img {
  transform: scale(1.1);
}

.service-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  background: var(--gradient-primary);
  color: white;
  padding: 8px 16px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
}

.service-content {
  padding: 30px;
}

.service-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 15px;
  color: var(--dark-color);
}

.service-text {
  color: #666;
  line-height: 1.8;
  margin-bottom: 20px;
}

.service-price {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary-color);
}

/* About Preview Section */
.about-preview {
  background: white;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-images {
  position: relative;
}

.about-image-main {
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-hard);
}

.about-image-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-stats {
  position: absolute;
  bottom: -30px;
  right: -30px;
  background: var(--gradient-primary);
  color: white;
  padding: 30px;
  border-radius: var(--border-radius);
  text-align: center;
  min-width: 150px;
}

.about-stats-number {
  font-size: 2.5rem;
  font-weight: 800;
  display: block;
}

.about-stats-text {
  font-size: 0.9rem;
  opacity: 0.9;
}

.about-content h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 25px;
  color: var(--dark-color);
}

.about-content p {
  color: #666;
  line-height: 1.8;
  margin-bottom: 20px;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 30px 0;
}

.about-feature {
  display: flex;
  align-items: center;
  gap: 12px;
}

.about-feature i {
  color: var(--primary-color);
  font-size: 1.2rem;
}

/* Gallery Section */
.gallery {
  background: var(--dark-color);
  color: white;
}

.gallery .section-title {
  color: white;
}

.gallery .section-subtitle {
  color: rgba(255, 255, 255, 0.7);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.gallery-item {
  position: relative;
  border-radius: var(--border-radius);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4/3;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.gallery-item:hover img {
  transform: scale(1.1);
}

.gallery-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition-smooth);
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
  transform: scale(0);
  transition: var(--transition-smooth);
}

.gallery-item:hover .gallery-icon {
  transform: scale(1);
}

/* Lightbox */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
  z-index: 10001;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-smooth);
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox-img {
  max-width: 90%;
  max-height: 90%;
  border-radius: var(--border-radius);
}

.lightbox-close {
  position: absolute;
  top: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  border-radius: 50%;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.lightbox-close:hover {
  background: var(--primary-color);
}

/* Calculator Section */
.calculator {
  background: white;
}

.calculator-container {
  background: var(--gradient-light);
  border-radius: var(--border-radius);
  padding: 50px;
  max-width: 900px;
  margin: 0 auto;
}

.calculator-form {
  display: grid;
  gap: 30px;
}

.calculator-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.calculator-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.calculator-group label {
  font-weight: 600;
  color: var(--dark-color);
}

.calculator-group select,
.calculator-group input {
  padding: 15px;
  border: 2px solid #e0e0e0;
  border-radius: 8px;
  font-size: 1rem;
  transition: var(--transition-smooth);
}

.calculator-group select:focus,
.calculator-group input:focus {
  outline: none;
  border-color: var(--primary-color);
}

.calculator-result {
  background: white;
  padding: 30px;
  border-radius: var(--border-radius);
  text-align: center;
  margin-top: 30px;
}

.calculator-price {
  font-size: 3rem;
  font-weight: 800;
  color: var(--primary-color);
  margin: 15px 0;
}

/* Contact Section */
.contact {
  background: var(--gradient-light);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-info {
  display: grid;
  gap: 30px;
}

.contact-card {
  background: white;
  padding: 30px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-soft);
  display: flex;
  align-items: flex-start;
  gap: 20px;
  transition: var(--transition-smooth);
}

.contact-card:hover {
  transform: translateX(10px);
}

.contact-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
  flex-shrink: 0;
}

.contact-details h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
  color: var(--dark-color);
}

.contact-details p {
  color: #666;
  line-height: 1.6;
}

.contact-form-wrapper {
  background: white;
  padding: 50px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-soft);
}

.contact-form {
  display: grid;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-weight: 600;
  color: var(--dark-color);
}

.form-group input,
.form-group textarea,
.form-group select {
  padding: 15px;
  border: 2px solid #e0e0e0;
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition-smooth);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-color);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* Footer */
.footer {
  background: var(--dark-color);
  color: white;
  padding: 80px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 50px;
  margin-bottom: 50px;
}

.footer-brand h3 {
  font-size: 1.8rem;
  margin-bottom: 20px;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.8;
  margin-bottom: 25px;
}

.footer-social {
  display: flex;
  gap: 15px;
}

.footer-social a {
  width: 45px;
  height: 45px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: var(--transition-smooth);
}

.footer-social a:hover {
  background: var(--primary-color);
  transform: translateY(-3px);
}

.footer-column h4 {
  font-size: 1.2rem;
  margin-bottom: 25px;
  color: white;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  transition: var(--transition-smooth);
}

.footer-links a:hover {
  color: var(--primary-color);
  padding-left: 5px;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 15px;
  color: rgba(255, 255, 255, 0.7);
}

.footer-contact-item i {
  color: var(--primary-color);
  margin-top: 3px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.9rem;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 1200px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 992px) {
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .about-images {
    order: -1;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background: var(--dark-color);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 30px;
    transition: var(--transition-smooth);
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .nav-link {
    color: white !important;
    font-size: 1.5rem;
  }
  
  .mobile-menu-btn {
    display: flex;
    z-index: 1001;
  }
  
  .header-contact {
    display: none;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }
  
  .container {
    padding: 0 20px;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .btn {
    width: 100%;
    max-width: 300px;
    justify-content: center;
  }
  
  .services-grid,
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .about-features {
    grid-template-columns: 1fr;
  }
  
  .calculator-container {
    padding: 30px;
  }
  
  .calculator-row {
    grid-template-columns: 1fr;
  }
  
  .contact-form-wrapper {
    padding: 30px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .cursor,
  .cursor-follower {
    display: none;
  }
}

/* About Page Styles */
.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.value-card {
  background: white;
  padding: 40px 30px;
  border-radius: var(--border-radius);
  text-align: center;
  box-shadow: var(--shadow-soft);
  transition: var(--transition-smooth);
  border-bottom: 4px solid transparent;
}

.value-card:hover {
  transform: translateY(-10px);
  border-bottom-color: var(--primary-color);
}

.value-icon {
  width: 70px;
  height: 70px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 25px;
  font-size: 1.8rem;
  color: white;
}

.value-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 15px;
  color: var(--dark-color);
}

.value-text {
  color: #666;
  line-height: 1.8;
}

.advantages-list {
  display: grid;
  gap: 25px;
  margin-top: 40px;
}

.advantage-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background: white;
  padding: 30px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-soft);
}

.advantage-number {
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 700;
  color: white;
  flex-shrink: 0;
}

.advantage-content h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--dark-color);
}

.advantage-content p {
  color: #666;
  line-height: 1.6;
}

/* Projects Page Styles */
.projects-tabs {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-bottom: 50px;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 12px 30px;
  background: white;
  border: 2px solid #e0e0e0;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.tab-btn:hover,
.tab-btn.active {
  background: var(--gradient-primary);
  border-color: var(--primary-color);
  color: white;
}

.projects-content {
  display: none;
}

.projects-content.active {
  display: block;
  animation: fadeInUp 0.5s ease;
}

.project-category {
  margin-bottom: 60px;
}

.project-category h3 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 30px;
  color: var(--dark-color);
  padding-left: 20px;
  border-left: 4px solid var(--primary-color);
}

.project-list {
  display: grid;
  gap: 20px;
}

.project-item {
  background: white;
  padding: 25px 30px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-soft);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition-smooth);
}

.project-item:hover {
  transform: translateX(10px);
  box-shadow: var(--shadow-hard);
}

.project-name {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--dark-color);
}

.project-price {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary-color);
}

/* Prices Page Styles */
.prices-hero {
  background: var(--gradient-dark);
  color: white;
  padding: 150px 0 80px;
  text-align: center;
}

.prices-hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  margin-bottom: 20px;
}

.prices-hero p {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.8);
  max-width: 600px;
  margin: 0 auto;
}

.prices-section {
  background: white;
  padding: 80px 0;
}

.price-category {
  margin-bottom: 60px;
}

.price-category:last-child {
  margin-bottom: 0;
}

.price-category-title {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 30px;
  color: var(--dark-color);
  display: flex;
  align-items: center;
  gap: 15px;
}

.price-category-title i {
  color: var(--primary-color);
}

.price-table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.price-table th,
.price-table td {
  padding: 20px 25px;
  text-align: left;
  border-bottom: 1px solid #eee;
}

.price-table th {
  background: var(--gradient-primary);
  color: white;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.9rem;
}

.price-table tr:hover {
  background: #f8f9fa;
}

.price-table td:last-child {
  font-weight: 700;
  color: var(--primary-color);
  text-align: right;
}

/* Contact Page Styles */
.contact-hero {
  background: var(--gradient-dark);
  color: white;
  padding: 150px 0 80px;
  text-align: center;
}

.contact-hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  margin-bottom: 20px;
}

.contact-hero p {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.8);
}

.map-container {
  height: 400px;
  border-radius: var(--border-radius);
  overflow: hidden;
  margin-top: 50px;
  box-shadow: var(--shadow-soft);
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* Toast Notification */
.toast {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: var(--dark-color);
  color: white;
  padding: 20px 30px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-hard);
  display: flex;
  align-items: center;
  gap: 15px;
  z-index: 10002;
  transform: translateX(400px);
  transition: transform 0.3s ease;
}

.toast.show {
  transform: translateX(0);
}

.toast.success {
  background: #28a745;
}

.toast.error {
  background: #dc3545;
}

.toast-icon {
  font-size: 1.5rem;
}

/* Scroll to Top Button */
.scroll-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  border: none;
  border-radius: 50%;
  color: white;
  font-size: 1.2rem;
  cursor: pointer;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-smooth);
  box-shadow: var(--shadow-soft);
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hard);
}

/* SEO Articles Section */
.articles {
  background: var(--light-color);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
}

.article-card {
  background: white;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: var(--transition-smooth);
}

.article-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-hard);
}

.article-image {
  height: 200px;
  background: var(--gradient-primary);
  position: relative;
  overflow: hidden;
}

.article-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.article-card:hover .article-image img {
  transform: scale(1.1);
}

.article-date {
  position: absolute;
  top: 20px;
  left: 20px;
  background: white;
  padding: 10px 15px;
  border-radius: 8px;
  text-align: center;
  font-weight: 700;
  color: var(--dark-color);
}

.article-date .day {
  font-size: 1.5rem;
  display: block;
  line-height: 1;
}

.article-date .month {
  font-size: 0.75rem;
  text-transform: uppercase;
}

.article-content {
  padding: 30px;
}

.article-category {
  color: var(--primary-color);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 10px;
}

.article-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 15px;
  color: var(--dark-color);
  line-height: 1.4;
}

.article-excerpt {
  color: #666;
  line-height: 1.8;
  margin-bottom: 20px;
}

.read-more {
  color: var(--primary-color);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.read-more:hover {
  gap: 12px;
}