:root {
  --deep-moss-green: #2F4F3E;
  --sage-leaf: #9BB7A5;
  --linen-beige: #F2EFEA;
  --olive-thread: #6E8B6F;
  --dark-pine: #1F332A;
  --spacing-unit: 1.5rem;
  --max-width: 1200px;
  --text-column: 65ch;
  --transition-soft: 0.3s ease;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  line-height: 1.8;
  color: var(--dark-pine);
  background-color: var(--linen-beige);
  font-size: 1rem;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Georgia', 'Times New Roman', serif;
  font-weight: 400;
  line-height: 1.3;
  color: var(--deep-moss-green);
  margin-bottom: var(--spacing-unit);
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
}

a {
  color: var(--olive-thread);
  text-decoration: none;
  transition: color var(--transition-soft);
}

a:hover {
  color: var(--deep-moss-green);
}

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

header {
  background-color: var(--linen-beige);
  border-bottom: 1px solid var(--sage-leaf);
  padding: var(--spacing-unit) 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
  background-color: rgba(242, 239, 234, 0.95);
}

.header-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-unit);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: 'Georgia', serif;
  font-size: 1.5rem;
  color: var(--deep-moss-green);
  font-weight: 400;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

nav a {
  color: var(--dark-pine);
  font-size: 0.95rem;
}

.burger-menu {
  display: none;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0.5rem;
}

.burger-menu span {
  width: 25px;
  height: 2px;
  background-color: var(--deep-moss-green);
  transition: var(--transition-soft);
}

.hero {
  background: linear-gradient(135deg, var(--sage-leaf) 0%, var(--deep-moss-green) 100%);
  color: var(--linen-beige);
  padding: 6rem var(--spacing-unit) 4rem;
  text-align: center;
}

.hero h1 {
  color: var(--linen-beige);
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.1rem;
  max-width: var(--text-column);
  margin: 0 auto;
}

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

.section {
  padding: 4rem 0;
  position: relative;
}

.section:nth-child(even) {
  background-color: rgba(155, 183, 165, 0.1);
}

.section-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--sage-leaf), transparent);
  margin: 2rem 0;
}

.stitching-line {
  position: relative;
  padding: 2rem 0;
}

.stitching-line::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 2px;
  background: repeating-linear-gradient(
    90deg,
    var(--olive-thread) 0px,
    var(--olive-thread) 4px,
    transparent 4px,
    transparent 8px
  );
}

.text-column {
  max-width: var(--text-column);
  margin: 0 auto;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.service-card {
  background-color: var(--linen-beige);
  padding: 2rem;
  border-left: 3px solid var(--sage-leaf);
  transition: transform var(--transition-soft);
}

.service-card:hover {
  transform: translateY(-2px);
}

.process-steps {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  margin-top: 2rem;
}

.process-step {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

.process-step-number {
  font-family: 'Georgia', serif;
  font-size: 3rem;
  color: var(--sage-leaf);
  line-height: 1;
  min-width: 60px;
}

.fabric-catalogue {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.fabric-item {
  background-color: var(--linen-beige);
  padding: 1.5rem;
  border-top: 2px solid var(--olive-thread);
}

.contact-form {
  max-width: 600px;
  margin: 2rem auto;
  background-color: var(--linen-beige);
  padding: 2rem;
  border: 1px solid var(--sage-leaf);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--deep-moss-green);
  font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--sage-leaf);
  background-color: var(--linen-beige);
  color: var(--dark-pine);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color var(--transition-soft);
}

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

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

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-top: 1rem;
}

.checkbox-group input[type="checkbox"] {
  width: auto;
  margin-top: 0.25rem;
}

.submit-btn {
  background-color: var(--deep-moss-green);
  color: var(--linen-beige);
  padding: 1rem 2rem;
  border: none;
  font-size: 1rem;
  cursor: pointer;
  transition: background-color var(--transition-soft);
  width: 100%;
}

.submit-btn:hover {
  background-color: var(--olive-thread);
}

footer {
  background-color: var(--dark-pine);
  color: var(--linen-beige);
  padding: 3rem var(--spacing-unit) 2rem;
  margin-top: 4rem;
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.footer-section h3 {
  color: var(--linen-beige);
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

.footer-section ul {
  list-style: none;
}

.footer-section a {
  color: var(--sage-leaf);
}

.footer-section a:hover {
  color: var(--linen-beige);
}

.footer-bottom {
  text-align: center;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(155, 183, 165, 0.3);
  color: var(--sage-leaf);
}

.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background-color: var(--deep-moss-green);
  color: var(--linen-beige);
  width: 50px;
  height: 50px;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  transition: background-color var(--transition-soft);
  z-index: 999;
}

.back-to-top:hover {
  background-color: var(--olive-thread);
}

.back-to-top.visible {
  display: flex;
}

.diagonal-cut {
  position: relative;
  overflow: hidden;
}

.diagonal-cut::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(135deg, transparent 48%, var(--sage-leaf) 49%, var(--sage-leaf) 51%, transparent 52%);
  opacity: 0.1;
  pointer-events: none;
}

.image-icon {
  width: 60px;
  height: 60px;
  object-fit: cover;
  border-radius: 50%;
  margin: 0 auto 1rem;
  border: 2px solid var(--sage-leaf);
}

.image-left {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 2rem;
  align-items: center;
  margin: 2rem 0;
}

.image-right {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2rem;
  align-items: center;
  margin: 2rem 0;
}

.image-center {
  text-align: center;
  margin: 2rem 0;
}

.image-center img {
  margin: 0 auto 1.5rem;
  border-radius: 4px;
}

.icon-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.icon-item {
  text-align: center;
  padding: 1.5rem;
}

.icon-item .image-icon {
  margin-bottom: 1rem;
}

.split-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  margin: 3rem 0;
}

.split-section img {
  border-radius: 4px;
}

.close-menu {
  display: none;
}

@media (max-width: 768px) {
  nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--linen-beige);
    border-bottom: 1px solid var(--sage-leaf);
    padding: var(--spacing-unit);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  }

  nav.active {
    display: block;
  }

  .close-menu {
    display: block;
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--deep-moss-green);
    cursor: pointer;
    width: 40px;
    height: 40px;
    line-height: 1;
    padding: 0;
    z-index: 1001;
    transition: color var(--transition-soft);
  }

  .close-menu:hover {
    color: var(--olive-thread);
  }

  nav ul {
    flex-direction: column;
    gap: 1rem;
    margin-top: 2.5rem;
  }

  .burger-menu {
    display: flex;
  }

  .process-step {
    flex-direction: column;
  }

  .process-step-number {
    min-width: auto;
  }

  .hero {
    padding: 3rem var(--spacing-unit) 2.5rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .section {
    padding: 2.5rem 0;
  }

  .service-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .fabric-catalogue {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .image-left,
  .image-right,
  .split-section {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .icon-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .footer-container {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .logo {
    font-size: 1.25rem;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  h3 {
    font-size: 1.5rem;
  }
}

@media (max-width: 320px) {
  :root {
    --spacing-unit: 0.75rem;
    --text-column: 100%;
  }

  .header-container {
    padding: 0 0.5rem;
  }

  .logo {
    font-size: 1rem;
  }

  nav {
    padding: 0.75rem;
  }

  nav ul {
    gap: 0.75rem;
  }

  nav a {
    font-size: 0.85rem;
  }

  .hero {
    padding: 1.5rem 0.5rem 1.25rem;
  }

  .hero h1 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
  }

  .hero p {
    font-size: 0.85rem;
    line-height: 1.6;
  }

  .container {
    padding: 0 0.5rem;
  }

  .section {
    padding: 1.5rem 0;
  }

  .section-divider {
    margin: 1rem 0;
  }

  .stitching-line {
    padding: 1rem 0;
  }

  .service-card,
  .fabric-item {
    padding: 0.75rem;
    margin-bottom: 0.75rem;
  }

  .service-grid,
  .fabric-catalogue,
  .icon-grid {
    gap: 1rem;
  }

  .process-steps {
    gap: 1.5rem;
  }

  .process-step {
    gap: 1rem;
  }

  .process-step-number {
    font-size: 2rem;
    min-width: 40px;
  }

  .contact-form {
    padding: 0.75rem;
    margin: 1rem 0.5rem;
  }

  .form-group {
    margin-bottom: 1rem;
  }

  .form-group input,
  .form-group textarea,
  .form-group select {
    padding: 0.5rem;
    font-size: 0.9rem;
  }

  .form-group textarea {
    min-height: 100px;
  }

  .submit-btn {
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
  }

  .image-left,
  .image-right,
  .split-section {
    gap: 1rem;
  }

  .image-left img,
  .image-right img,
  .split-section img {
    width: 100%;
    height: auto;
  }

  .image-center img {
    width: 100%;
    max-width: 100%;
  }

  .image-icon {
    width: 45px;
    height: 45px;
  }

  .icon-item {
    padding: 1rem;
  }

  h1 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
  }

  h2 {
    font-size: 1.35rem;
    margin-bottom: 0.75rem;
  }

  h3 {
    font-size: 1.15rem;
    margin-bottom: 0.5rem;
  }

  p {
    font-size: 0.9rem;
    line-height: 1.6;
  }

  .text-column {
    max-width: 100%;
  }

  .burger-menu {
    padding: 0.25rem;
  }

  .burger-menu span {
    width: 20px;
    height: 2px;
  }

  .close-menu {
    top: 0.75rem;
    right: 0.75rem;
    font-size: 1.75rem;
    width: 35px;
    height: 35px;
  }

  .back-to-top {
    width: 35px;
    height: 35px;
    bottom: 0.75rem;
    right: 0.75rem;
    font-size: 1.1rem;
  }

  .footer-container {
    gap: 1rem;
    padding: 0 0.5rem;
  }

  .footer-section {
    margin-bottom: 1rem;
  }

  .footer-section h3 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
  }

  .footer-section p,
  .footer-section a {
    font-size: 0.85rem;
  }

  footer {
    padding: 1.5rem 0.5rem 1rem;
  }

  .footer-bottom {
    margin-top: 1rem;
    padding-top: 1rem;
    font-size: 0.8rem;
  }

  .diagonal-cut::before {
    opacity: 0.05;
  }
}