:root {
  --color-black: #000000;
  --color-dark-charcoal: #1a1a1a;
  --color-dark-gray: #333333;
  --color-medium-gray: #666666;
  --color-light-gray: #f5f5f5;
  --color-lighter-gray: #fafafa;
  --color-border-gray: #e0e0e0;
  --color-white: #ffffff;
  --color-accent: #0b6cf6;
  --color-secondary: #8b0000;
  --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-base: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 20px;
  --font-size-2xl: 24px;
  --font-size-3xl: 32px;
  --font-size-4xl: 40px;
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  --letter-spacing-tight: -0.02em;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-dark-charcoal);
  background-color: var(--color-white);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-weight: 700;
  line-height: var(--line-height-tight);
  letter-spacing: var(--letter-spacing-tight);
  color: var(--color-dark-charcoal);
}

h1 {
  font-size: var(--font-size-4xl);
  margin-bottom: 16px;
}

h2 {
  font-size: var(--font-size-3xl);
  margin-bottom: 12px;
}

h3 {
  font-size: var(--font-size-xl);
  margin-bottom: 8px;
}

p {
  color: var(--color-medium-gray);
  margin: 0;
  line-height: var(--line-height-relaxed);
}

.section-intro {
  font-size: var(--font-size-lg);
  color: var(--color-medium-gray);
  margin-bottom: 40px;
  line-height: var(--line-height-relaxed);
}

/* ===== HEADER ===== */
.site-header {
  background-color: var(--color-black);
  border-bottom: 1px solid var(--color-dark-gray);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 16px 0;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-img {
  height: 50px;
  width: auto;
  display: block;
  object-fit: contain;
}

.main-nav {
  display: flex;
  gap: 32px;
  align-items: center;
  flex: 1;
  justify-content: center;
}

.main-nav a {
  color: var(--color-white);
  font-size: var(--font-size-sm);
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 6px;
  text-transform: none;
}

.main-nav a:hover {
  color: var(--color-secondary);
}

/* ===== HERO ===== */
.hero {
  background-color: var(--color-white);
  padding: 80px 0;
  border-bottom: 1px solid var(--color-border-gray);
}

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

.hero-left h1 {
  font-size: var(--font-size-4xl);
  margin-bottom: 20px;
  line-height: 1.15;
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-medium-gray);
  margin-bottom: 32px;
  line-height: var(--line-height-relaxed);
}

.hero-buttons {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}

.cta {
  display: inline-block;
  background-color: var(--color-black);
  color: var(--color-white);
  padding: 12px 32px;
  font-size: var(--font-size-base);
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  border-radius: 0;
  letter-spacing: 0.05em;
}

.cta:hover {
  background-color: var(--color-secondary);
}

.cta-secondary {
  display: inline-block;
  background-color: var(--color-white);
  color: var(--color-black);
  border: 1px solid var(--color-black);
  padding: 12px 32px;
  font-size: var(--font-size-base);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  border-radius: 0;
  letter-spacing: 0.05em;
}

.cta-secondary:hover {
  background-color: var(--color-black);
  color: var(--color-white);
}

.hero-right {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hero-stat {
  background-color: var(--color-light-gray);
  padding: 24px;
  border: none;
  text-align: center;
}

.stat-number {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-black);
  margin-bottom: 8px;
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-medium-gray);
  font-weight: 500;
}

/* ===== SERVICES SECTION ===== */
.services {
  padding: 80px 0;
  background-color: var(--color-white);
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
  margin-top: 40px;
}

.card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border-gray);
  padding: 40px;
  transition: all var(--transition-normal);
  text-align: center;
}

.card:hover {
  border-color: var(--color-black);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.08);
}

.service-card h3 {
  font-size: var(--font-size-lg);
  margin-bottom: 12px;
  color: var(--color-black);
}

.service-card p {
  font-size: var(--font-size-sm);
  color: var(--color-medium-gray);
  line-height: var(--line-height-relaxed);
}

.service-icon {
  font-size: 40px;
  margin-bottom: 16px;
  display: block;
  line-height: 1;
}

/* ===== PROCESS SECTION ===== */
.process {
  padding: 80px 0;
  background-color: var(--color-lighter-gray);
  border-top: 1px solid var(--color-border-gray);
  border-bottom: 1px solid var(--color-border-gray);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-top: 40px;
}

.step {
  background-color: var(--color-white);
  border: 1px solid var(--color-border-gray);
  padding: 24px;
  text-align: center;
  transition: all var(--transition-normal);
}

.step:hover {
  border-color: var(--color-black);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.08);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background-color: var(--color-black);
  color: var(--color-white);
  border-radius: 50%;
  font-weight: 700;
  font-size: 18px;
  margin-bottom: 16px;
}

.step h3 {
  font-size: var(--font-size-base);
  margin-bottom: 8px;
}

.step p {
  font-size: var(--font-size-xs);
  color: var(--color-medium-gray);
  line-height: var(--line-height-relaxed);
}

/* ===== PRODUCTS SECTION ===== */
.products {
  padding: 80px 0;
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border-gray);
}

.product-card {
  text-align: center;
  display: flex;
  flex-direction: column;
}

.product-card h3 {
  font-size: var(--font-size-lg);
  margin-bottom: 8px;
}

.product-card p {
  font-size: var(--font-size-sm);
  margin-bottom: 20px;
  flex-grow: 1;
  line-height: var(--line-height-relaxed);
}

.product-icon {
  font-size: 40px;
  margin-bottom: 16px;
  display: block;
  line-height: 1;
}

.product-link {
  display: inline-block;
  color: var(--color-black);
  font-weight: 600;
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
  border-bottom: 1px solid var(--color-black);
  padding-bottom: 4px;
}

.product-link:hover {
  color: var(--color-secondary);
  border-bottom-color: var(--color-secondary);
}

/* ===== TESTIMONIALS ===== */
.testimonials {
  padding: 80px 0;
  background-color: var(--color-dark-charcoal);
  color: var(--color-white);
  border-top: 1px solid var(--color-black);
  border-bottom: 1px solid var(--color-black);
}

.testimonials h2 {
  color: var(--color-white);
}

.testimonials .section-intro {
  color: rgba(255, 255, 255, 0.7);
}

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 40px;
}

.testimonial {
  background-color: transparent;
  border-left: 2px solid var(--color-secondary);
  padding-left: 20px;
  transition: all var(--transition-normal);
}

.testimonial:hover {
  border-left-color: var(--color-accent);
}

.quote {
  font-size: var(--font-size-base);
  font-style: italic;
  color: var(--color-white);
  margin-bottom: 16px;
  line-height: var(--line-height-relaxed);
}

.cite {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.8);
  font-weight: 500;
}

/* ===== CONTACT SECTION ===== */
.contact {
  padding: 80px 0;
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border-gray);
}

.contact h2 {
  text-align: center;
}

.contact .section-intro {
  text-align: center;
}

.contact-form {
  max-width: 600px;
  margin: 40px auto 0;
  background-color: var(--color-light-gray);
  padding: 40px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.form-row.full {
  grid-template-columns: 1fr;
}

.contact-form label {
  display: block;
  margin-bottom: 8px;
}

.contact-form label>span {
  color: var(--color-black);
  font-weight: 600;
  display: block;
  font-size: var(--font-size-sm);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--color-border-gray);
  background-color: var(--color-white);
  font-family: var(--font-primary);
  font-size: var(--font-size-sm);
  color: var(--color-dark-charcoal);
  transition: border-color var(--transition-fast);
}

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

.contact-form button {
  background-color: var(--color-black);
  color: var(--color-white);
  padding: 12px 32px;
  border: none;
  font-weight: 600;
  font-size: var(--font-size-base);
  cursor: pointer;
  transition: all var(--transition-fast);
  width: 100%;
  margin-top: 8px;
  letter-spacing: 0.05em;
}

.contact-form button:hover {
  background-color: var(--color-secondary);
}

/* ===== FOOTER ===== */
.site-footer {
  background-color: var(--color-black);
  color: var(--color-white);
  padding: 60px 0 24px;
  border-top: 1px solid var(--color-dark-gray);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h4 {
  margin-bottom: 16px;
  font-size: var(--font-size-base);
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
}

.footer-col p {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
  line-height: var(--line-height-relaxed);
}

.footer-col a {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
  display: block;
  font-size: var(--font-size-sm);
  line-height: 1.8;
}

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

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

.footer-bottom {
  text-align: center;
  border-top: 1px solid var(--color-dark-gray);
  padding-top: 20px;
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.6);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .process-steps {
    grid-template-columns: repeat(3, 1fr);
  }

  .testimonial-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

  h1 {
    font-size: 32px;
  }

  h2 {
    font-size: 28px;
  }

  .main-nav {
    gap: 24px;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }

  .hero {
    padding: 60px 0;
  }

  .hero h1 {
    font-size: 28px;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .cta,
  .cta-secondary {
    width: 100%;
    text-align: center;
  }

  .process-steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .testimonial-grid {
    grid-template-columns: 1fr;
  }

  .main-nav {
    gap: 16px;
    font-size: 13px;
  }

  .footer-content {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

  h1 {
    font-size: 24px;
  }

  h2 {
    font-size: 22px;
  }

  .site-header .container {
    flex-direction: column;
    gap: 12px;
  }

  .contact-form {
    padding: 24px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 12px;
  }

  h1 {
    font-size: 20px;
  }

  h2 {
    font-size: 18px;
  }

  .hero {
    padding: 40px 0;
  }

  .process-steps {
    grid-template-columns: 1fr;
  }

  .grid {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 22px;
  }

  .testimonial-grid {
    gap: 24px;
  }
}