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

:root {
  /* Colors - премиальная палитра для студии дизайна */
  --color-background: #faf9f7;
  --color-foreground: #262626;
  --color-primary: #333333;
  --color-primary-foreground: #faf9f7;
  --color-secondary: #3d5a4f;
  --color-secondary-foreground: #faf9f7;
  --color-muted: #f2f1ef;
  --color-muted-foreground: #808080;
  --color-border: #e6e5e3;
  --color-accent: #3d5a4f;
  --color-accent-foreground: #faf9f7;

  /* Fonts */
  --font-serif: "Playfair Display", Georgia, serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* Spacing */
  --container-padding: 1rem;
  --section-padding: 6rem 0;

  /* Transitions */
  --transition: all 0.3s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-background);
  color: var(--color-foreground);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

@media (min-width: 640px) {
  :root {
    --container-padding: 1.5rem;
  }
}

@media (min-width: 1024px) {
  :root {
    --container-padding: 2rem;
  }
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: rgba(250, 249, 247, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.logo a {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-foreground);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav {
  display: none;
  gap: 2rem;
}

.nav-link {
  font-size: 0.875rem;
  color: var(--color-muted-foreground);
  text-decoration: none;
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--color-foreground);
}

.header-cta {
  display: none;
}

.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.hamburger-icon {
  position: relative;
  width: 24px;
  height: 2px;
  background-color: var(--color-foreground);
  transition: var(--transition);
}

.hamburger-icon::before,
.hamburger-icon::after {
  content: "";
  position: absolute;
  width: 24px;
  height: 2px;
  background-color: var(--color-foreground);
  transition: var(--transition);
}

.hamburger-icon::before {
  top: -8px;
}

.hamburger-icon::after {
  bottom: -8px;
}

.mobile-menu-btn.active .hamburger-icon {
  background-color: transparent;
}

.mobile-menu-btn.active .hamburger-icon::before {
  top: 0;
  transform: rotate(45deg);
}

.mobile-menu-btn.active .hamburger-icon::after {
  bottom: 0;
  transform: rotate(-45deg);
}

.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 1rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--color-border);
}

.mobile-nav.active {
  display: flex;
}

.mobile-nav-link {
  font-size: 1rem;
  color: var(--color-muted-foreground);
  text-decoration: none;
  transition: var(--transition);
}

.mobile-nav-link:hover {
  color: var(--color-foreground);
}

@media (min-width: 768px) {
  .nav {
    display: flex;
  }

  .header-cta {
    display: block;
  }

  .mobile-menu-btn,
  .mobile-nav {
    display: none !important;
  }
}

/* Main Content */
.main-content {
  min-height: 100vh;
}

/* Hero Section */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 80px;
  padding-bottom: 4rem;
}

.hero-content {
  max-width: 80rem;
  margin: 0 auto;
  text-align: center;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 400;
  color: var(--color-foreground);
  line-height: 1.2;
  margin-bottom: 2rem;
}

.hero-description {
  font-size: 1.125rem;
  color: var(--color-muted-foreground);
  max-width: 48rem;
  margin: 0 auto 2rem;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  padding-top: 1rem;
}

.section-divider {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background-color: var(--color-border);
}

@media (min-width: 640px) {
  .hero-title {
    font-size: 3rem;
  }

  .hero-description {
    font-size: 1.25rem;
  }

  .hero-buttons {
    flex-direction: row;
    justify-content: center;
  }
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 3.75rem;
  }

  .hero-description {
    font-size: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .hero-title {
    font-size: 4.5rem;
  }
}

/* Sections */
section {
  padding: var(--section-padding);
}

.services-section,
.process-section {
  background-color: rgba(242, 241, 239, 0.3);
}

.section-header {
  max-width: 48rem;
  margin: 0 auto 4rem;
  text-align: center;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 400;
  color: var(--color-foreground);
  margin-bottom: 1.5rem;
}

.section-description {
  font-size: 1.125rem;
  color: var(--color-muted-foreground);
  line-height: 1.6;
}

@media (min-width: 640px) {
  .section-title {
    font-size: 2.5rem;
  }
}

@media (min-width: 768px) {
  .section-title {
    font-size: 3rem;
  }

  .section-header {
    margin-bottom: 5rem;
  }
}

/* Services Grid */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  max-width: 72rem;
  margin: 0 auto;
}

.service-card {
  padding: 2.5rem;
  background-color: white;
  border: 1px solid var(--color-border);
  border-radius: 0;
  transition: var(--transition);
}

.service-card:hover {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.service-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: rgba(61, 90, 79, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.service-icon svg {
  color: var(--color-accent-foreground);
  stroke: var(--color-accent);
}

.service-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-foreground);
  margin-bottom: 0.75rem;
}

.service-description {
  color: var(--color-muted-foreground);
  line-height: 1.6;
}

@media (min-width: 768px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
}

/* Portfolio Grid */
.portfolio-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.portfolio-card {
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.portfolio-card:hover {
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.portfolio-image {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.portfolio-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.portfolio-card:hover .portfolio-image img {
  transform: scale(1.05);
}

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.2), transparent);
  opacity: 0;
  transition: var(--transition);
}

.portfolio-card:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-content {
  padding: 1.5rem;
  background-color: white;
}

.portfolio-category {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-muted-foreground);
  margin-bottom: 0.5rem;
}

.portfolio-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-foreground);
}

@media (min-width: 768px) {
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
}

@media (min-width: 1024px) {
  .portfolio-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Process Grid */
.process-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  max-width: 88rem;
  margin: 0 auto;
}

.process-card {
  position: relative;
  padding: 2rem;
  background-color: white;
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: var(--transition);
}

.process-card:hover {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.process-number-bg {
  position: absolute;
  top: 0;
  right: 0;
  font-size: 7.5rem;
  font-weight: 700;
  color: rgba(242, 241, 239, 0.3);
  line-height: 1;
  pointer-events: none;
  transition: var(--transition);
}

.process-card:hover .process-number-bg {
  color: rgba(242, 241, 239, 0.6);
}

.process-content {
  position: relative;
  z-index: 1;
}

.process-number {
  font-family: "Courier New", monospace;
  font-size: 0.875rem;
  color: var(--color-accent-foreground);
  margin-bottom: 1rem;
}

.process-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-foreground);
  margin-bottom: 1rem;
}

.process-description {
  font-size: 0.875rem;
  color: var(--color-muted-foreground);
  line-height: 1.6;
}

@media (min-width: 768px) {
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .process-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Contact Section */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  max-width: 72rem;
  margin: 0 auto;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-intro {
  font-size: 1.125rem;
  color: var(--color-muted-foreground);
  line-height: 1.6;
}

.contact-cards {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-card {
  display: flex;
  gap: 1rem;
  padding: 1.5rem;
  background-color: white;
  border: 1px solid var(--color-border);
}

.contact-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(61, 90, 79, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-icon svg {
  color: var(--color-accent);
}

.contact-card-title {
  font-weight: 600;
  color: var(--color-foreground);
  margin-bottom: 0.25rem;
}

.contact-link {
  color: var(--color-muted-foreground);
  text-decoration: none;
  transition: var(--transition);
}

.contact-link:hover {
  color: var(--color-foreground);
}

.contact-text {
  color: var(--color-muted-foreground);
}

.contact-form-wrapper {
  padding: 2rem;
  background-color: white;
  border: 1px solid var(--color-border);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

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

.form-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-foreground);
  margin-bottom: 0.5rem;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--color-foreground);
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: 0;
  transition: var(--transition);
}

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

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

@media (min-width: 1024px) {
  .contact-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 4rem;
  }
}

/* Footer */
.footer {
  border-top: 1px solid var(--color-border);
  background-color: rgba(242, 241, 239, 0.3);
  padding: 3rem 0;
}

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

.footer-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-foreground);
  margin-bottom: 1rem;
}

.footer-heading {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-foreground);
  margin-bottom: 1rem;
}

.footer-text {
  font-size: 0.875rem;
  color: var(--color-muted-foreground);
  line-height: 1.6;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  font-size: 0.875rem;
  color: var(--color-muted-foreground);
  text-decoration: none;
  transition: var(--transition);
}

.footer-link:hover {
  color: var(--color-foreground);
}

.footer-contact-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.footer-copyright {
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-muted-foreground);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 2rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  border: none;
  border-radius: 0;
  cursor: pointer;
  transition: var(--transition);
}

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

.btn-primary:hover {
  background-color: #1a1a1a;
}

.btn-outline {
  background-color: transparent;
  color: var(--color-foreground);
  border: 1px solid var(--color-border);
}

.btn-outline:hover {
  background-color: var(--color-muted);
}

.btn-sm {
  padding: 0.625rem 1.5rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1rem;
}

.btn-full {
  width: 100%;
}

.btn-icon {
  margin-left: 0.5rem;
}

/* Responsive adjustments */
@media (max-width: 767px) {
  :root {
    --section-padding: 4rem 0;
  }
}