:root {
  --primary: #1e3a5f;
  --primary-light: #2d5a8a;
  --accent: #e07a3d;
  --accent-dark: #c25f2a;
  --bg: #f8f6f3;
  --surface: #ffffff;
  --text: #2c3e50;
  --text-light: #5a6a7a;
  --border: #e8e4df;
  --success: #2e7d32;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  font-size: 16px;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--accent);
}

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

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header & Navigation */
.header {
  background: var(--surface);
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--primary);
}

.logo svg {
  width: 38px;
  height: 38px;
}

.nav-links {
  display: flex;
  gap: 8px;
  list-style: none;
}

.nav-links a {
  padding: 10px 18px;
  border-radius: 8px;
  font-weight: 500;
  color: var(--text);
  transition: all 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  background: var(--bg);
  color: var(--primary);
}

.nav-cta {
  background: var(--accent);
  color: white !important;
  padding: 10px 22px;
  border-radius: 8px;
  font-weight: 600;
}

.nav-cta:hover {
  background: var(--accent-dark);
  color: white !important;
}

.mobile-menu {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text);
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, #0f2238 100%);
  color: white;
  padding: 110px 0 90px;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url('https://picsum.photos/id/1018/2000/1200') center/cover;
  opacity: 0.18;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero h1 {
  font-size: 3.1rem;
  line-height: 1.1;
  margin-bottom: 20px;
  font-weight: 700;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 32px;
  opacity: 0.95;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--accent);
  color: white;
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  color: white;
}

.btn-secondary {
  background: white;
  color: var(--primary);
}

.btn-secondary:hover {
  background: var(--bg);
}

/* Sections */
.section {
  padding: 80px 0;
}

.section-title {
  font-size: 2.1rem;
  margin-bottom: 12px;
  color: var(--primary);
}

.section-subtitle {
  color: var(--text-light);
  font-size: 1.1rem;
  max-width: 620px;
  margin-bottom: 40px;
}

/* Cards & Grid */
.grid {
  display: grid;
  gap: 24px;
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  background: var(--surface);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.1);
}

.card-body {
  padding: 28px;
}

.card h3 {
  margin-bottom: 12px;
  color: var(--primary);
  font-size: 1.25rem;
}

.card p {
  color: var(--text-light);
  font-size: 0.95rem;
}

/* Services */
.service-icon {
  width: 64px;
  height: 64px;
  background: #f0e9e3;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 20px;
}

/* Portfolio */
.portfolio-filters {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.filter-btn {
  padding: 8px 20px;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 999px;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s;
}

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

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.portfolio-item {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.portfolio-item img {
  transition: transform 0.5s ease;
}

.portfolio-item:hover img {
  transform: scale(1.08);
}

.portfolio-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 24px;
  background: linear-gradient(to top, rgba(30,58,95,0.92), transparent);
  color: white;
}

.portfolio-overlay h3 {
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.portfolio-overlay .meta {
  font-size: 0.85rem;
  opacity: 0.9;
}

/* Before/After */
.before-after {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 24px 0;
}

.before-after > div {
  position: relative;
}

.before-after img {
  border-radius: 12px;
}

.label {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(0,0,0,0.65);
  color: white;
  font-size: 0.75rem;
  padding: 4px 12px;
  border-radius: 999px;
  letter-spacing: 0.5px;
}

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 24px;
  margin-top: 40px;
}

.stat {
  text-align: center;
  padding: 24px;
  background: var(--surface);
  border-radius: 16px;
}

.stat-number {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.stat-label {
  color: var(--text-light);
  margin-top: 8px;
  font-size: 0.95rem;
}

/* Prices */
.pricing {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.price-card {
  background: var(--surface);
  border-radius: 18px;
  padding: 36px 28px;
  border: 2px solid var(--border);
  position: relative;
}

.price-card.popular {
  border-color: var(--accent);
  box-shadow: 0 10px 30px rgba(224,122,61,0.15);
}

.price-card.popular::before {
  content: 'ПОПУЛЯРНЫЙ';
  position: absolute;
  top: -12px;
  right: 28px;
  background: var(--accent);
  color: white;
  font-size: 0.7rem;
  padding: 4px 14px;
  border-radius: 999px;
  letter-spacing: 1px;
}

.price {
  font-size: 2.6rem;
  font-weight: 700;
  color: var(--primary);
  margin: 12px 0;
}

.price span {
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-light);
}

.price-features {
  list-style: none;
  margin: 24px 0;
}

.price-features li {
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
}

.price-features li::before {
  content: '✓';
  color: var(--accent);
  font-weight: bold;
}

/* Testimonials */
.testimonials {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.testimonial {
  background: var(--surface);
  padding: 28px;
  border-radius: 16px;
}

.testimonial-text {
  font-style: italic;
  color: var(--text-light);
  margin-bottom: 20px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
}

.testimonial-author img {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  object-fit: cover;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-info p {
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.contact-form .form-group {
  margin-bottom: 18px;
}

.contact-form label {
  display: block;
  margin-bottom: 6px;
  font-weight: 500;
  font-size: 0.95rem;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 1rem;
  background: var(--surface);
  transition: border-color 0.2s;
}

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

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

/* Modal */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal.active {
  display: flex;
}

.modal-content {
  background: var(--surface);
  border-radius: 16px;
  max-width: 920px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 20px;
  font-size: 1.8rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-light);
  z-index: 10;
}

.modal-body {
  padding: 48px 40px 40px;
}

/* Footer */
.footer {
  background: var(--primary);
  color: rgba(255,255,255,0.85);
  padding: 48px 0 32px;
  font-size: 0.9rem;
}

.footer a {
  color: rgba(255,255,255,0.85);
}

.footer a:hover {
  color: white;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 32px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  opacity: 0.7;
}

/* Responsive */
@media (max-width: 900px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--surface);
    flex-direction: column;
    padding: 20px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .mobile-menu {
    display: block;
  }
  
  .hero h1 {
    font-size: 2.2rem;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .before-after {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .section {
    padding: 60px 0;
  }
  
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
}

/* Utility */
.text-center { text-align: center; }
.mt-40 { margin-top: 40px; }
.mb-40 { margin-bottom: 40px; }