:root {
  --color-primary: #0A0E27;
  --color-secondary: #7C3AED;
  --color-accent: #C4B5FD;
  --color-corporate-primary: #1E40AF;
  --color-corporate-secondary: #3B82F6;
  --color-corporate-accent: #60A5FA;
  --color-success: #059669;
  --color-warning: #D97706;
  --color-error: #DC2626;
  --color-info: #0891B2;
  --color-neutral: #F8FAFC;
  --color-text: #111827;
  --font-primary: 'Source Sans Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-secondary: Georgia, 'Times New Roman', serif;
  --base-size: 16px;
  --scale-ratio: 1.333;
  --spacing-unit: 8px;
  --max-width: 1140px;
  --gutter: 30px;
  --border-radius: 4px;
  --transition-speed: 0.3s;
  --box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  --box-shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.15);
}

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

html {
  font-size: var(--base-size);
  scroll-behavior: smooth;
}

body {
  background-color: #ffffff;
  color: var(--color-text);
  font-family: var(--font-primary);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 {
  font-size: 2.369rem;
  margin-bottom: 1.5rem;
}

h2 {
  font-size: 1.777rem;
  margin-bottom: 1.25rem;
}

h3 {
  font-size: 1.333rem;
  margin-bottom: 1rem;
}

h4 {
  font-size: 1rem;
  margin-bottom: 0.75rem;
}

h5 {
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

h6 {
  font-size: 0.75rem;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1rem;
}

a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: color var(--transition-speed) ease;
}

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

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

ul, ol {
  margin-bottom: 1rem;
  padding-left: 2rem;
}

li {
  margin-bottom: 0.5rem;
}

.container {
  margin-left: auto;
  margin-right: auto;
  max-width: var(--max-width);
  padding-left: var(--gutter);
  padding-right: var(--gutter);
  width: 100%;
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin-left: calc(var(--gutter) / -2);
  margin-right: calc(var(--gutter) / -2);
}

.col-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
.col-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
.col-3 { flex: 0 0 25%; max-width: 25%; }
.col-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
.col-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
.col-6 { flex: 0 0 50%; max-width: 50%; }
.col-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
.col-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
.col-9 { flex: 0 0 75%; max-width: 75%; }
.col-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
.col-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
.col-12 { flex: 0 0 100%; max-width: 100%; }

[class*="col-"] {
  padding-left: calc(var(--gutter) / 2);
  padding-right: calc(var(--gutter) / 2);
  position: relative;
  width: 100%;
}

.navbar {
  background-color: var(--color-primary);
  border-bottom: 2px solid var(--color-secondary);
  box-shadow: var(--box-shadow);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav-container {
  align-items: center;
  display: flex;
  justify-content: space-between;
  position: relative;
}

.logo {
  color: #ffffff;
  font-family: var(--font-secondary);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-decoration: none;
  transition: color var(--transition-speed) ease;
}

.logo:hover {
  color: var(--color-accent);
}

.main-nav {
  align-items: center;
  display: flex;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  display: inline-block;
  margin: 0;
  padding: 0;
}

.nav-link {
  border-bottom: 2px solid transparent;
  color: #ffffff;
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 0.5rem 0;
  text-decoration: none;
  transition: all var(--transition-speed) ease;
}

.nav-link:hover,
.nav-link.active {
  border-bottom-color: var(--color-secondary);
  color: var(--color-accent);
}

.mobile-menu-toggle {
  background: none;
  border: none;
  color: #ffffff;
  cursor: pointer;
  display: none;
  font-size: 1.75rem;
  padding: 0.5rem;
  position: absolute;
  right: var(--gutter);
  top: 50%;
  transform: translateY(-50%);
  z-index: 1001;
}

.header-main {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: #ffffff;
  padding: 6rem 0 4rem;
  position: relative;
  text-align: center;
}

.header-main::before {
  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 120"><path d="M0,0 L1200,0 L1200,120 L0,90 Z" fill="rgba(255,255,255,0.05)"/></svg>') no-repeat bottom center;
  background-size: cover;
  bottom: 0;
  content: '';
  height: 120px;
  left: 0;
  position: absolute;
  width: 100%;
}

.header-main h1 {
  color: #ffffff;
  font-size: 3rem;
  margin-bottom: 1.5rem;
  position: relative;
  z-index: 1;
}

.header-main p {
  color: var(--color-accent);
  font-size: 1.25rem;
  margin-bottom: 2rem;
  position: relative;
  z-index: 1;
}

.primary-banner {
  background-color: var(--color-neutral);
  background-image: linear-gradient(to bottom, rgba(255,255,255,0.95), rgba(255,255,255,0.98));
  background-position: center;
  background-size: cover;
  padding: 4rem 0;
  position: relative;
}

.intro-section {
  background-color: #ffffff;
  padding: 4rem 0;
}

.content-section {
  background-color: #ffffff;
  padding: 4rem 0;
}

.content-section:nth-child(even) {
  background-color: var(--color-neutral);
}

.info-block {
  margin-bottom: 3rem;
  padding: 2rem 0;
}

.data-area {
  background-color: #ffffff;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  margin-bottom: 2rem;
  padding: 2rem;
}

.content-zone {
  margin-bottom: 3rem;
  padding: 1.5rem 0;
}

.info-card {
  background-color: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  margin-bottom: 2rem;
  overflow: hidden;
  padding: 2rem;
  transition: all var(--transition-speed) ease;
}

.info-card:hover {
  box-shadow: var(--box-shadow-hover);
  transform: translateY(-4px);
}

.info-card img {
  border-radius: var(--border-radius);
  height: auto;
  margin-bottom: 1.5rem;
  width: 100%;
}

.detail-box {
  background-color: var(--color-neutral);
  border-left: 4px solid var(--color-secondary);
  border-radius: var(--border-radius);
  margin-bottom: 2rem;
  padding: 1.5rem 2rem;
}

.content-panel {
  background-color: #ffffff;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  display: flex;
  flex-direction: column;
  margin-bottom: 2rem;
  padding: 2rem;
}

.info-tile {
  background-color: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: var(--border-radius);
  margin-bottom: 1.5rem;
  padding: 1.5rem;
  text-align: center;
}

.content-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  margin-bottom: 3rem;
}

.layout-system {
  display: grid;
  gap: var(--gutter);
  grid-template-columns: repeat(12, 1fr);
  margin-bottom: 2rem;
}

.flex-container {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  justify-content: space-between;
  margin-bottom: 2rem;
}

.grid-layout {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(3, 1fr);
  margin-bottom: 3rem;
}

.grid-layout .info-card:last-child:nth-child(3n-1) {
  grid-column: span 2;
}

.action-button {
  background-color: var(--color-secondary);
  border: 2px solid var(--color-secondary);
  border-radius: var(--border-radius);
  color: #ffffff;
  cursor: pointer;
  display: inline-block;
  font-size: 1rem;
  font-weight: 600;
  padding: 0.875rem 2rem;
  text-align: center;
  text-decoration: none;
  transition: all var(--transition-speed) ease;
}

.action-button:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
  transform: translateY(-2px);
}

.primary-cta {
  background-color: var(--color-corporate-primary);
  border: 2px solid var(--color-corporate-primary);
  border-radius: var(--border-radius);
  color: #ffffff;
  cursor: pointer;
  display: inline-block;
  font-size: 1.125rem;
  font-weight: 700;
  padding: 1rem 2.5rem;
  text-align: center;
  text-decoration: none;
  transition: all var(--transition-speed) ease;
}

.primary-cta:hover {
  background-color: var(--color-corporate-secondary);
  border-color: var(--color-corporate-secondary);
  box-shadow: var(--box-shadow-hover);
  color: #ffffff;
  transform: translateY(-2px);
}

.submit-btn {
  background-color: var(--color-success);
  border: 2px solid var(--color-success);
  border-radius: var(--border-radius);
  color: #ffffff;
  cursor: pointer;
  display: inline-block;
  font-size: 1rem;
  font-weight: 600;
  padding: 0.875rem 2rem;
  text-align: center;
  text-decoration: none;
  transition: all var(--transition-speed) ease;
  width: 100%;
}

.submit-btn:hover {
  background-color: #047857;
  border-color: #047857;
  color: #ffffff;
}

.main-action {
  background-color: var(--color-secondary);
  border: 2px solid transparent;
  border-radius: var(--border-radius);
  color: #ffffff;
  cursor: pointer;
  display: inline-block;
  font-size: 1rem;
  font-weight: 600;
  padding: 0.875rem 2rem;
  text-align: center;
  text-decoration: none;
  transition: all var(--transition-speed) ease;
}

.main-action:hover {
  background-color: transparent;
  border-color: var(--color-secondary);
  color: var(--color-secondary);
}

.btn-outline {
  background-color: transparent;
  border: 2px solid var(--color-secondary);
  color: var(--color-secondary);
}

.btn-outline:hover {
  background-color: var(--color-secondary);
  color: #ffffff;
}

form {
  background-color: #ffffff;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  margin-bottom: 2rem;
  padding: 2rem;
}

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

label {
  color: var(--color-text);
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"],
input[type="number"],
select,
textarea {
  background-color: #ffffff;
  border: 1px solid #d1d5db;
  border-radius: var(--border-radius);
  color: var(--color-text);
  display: block;
  font-family: var(--font-primary);
  font-size: 1rem;
  line-height: 1.5;
  padding: 0.75rem 1rem;
  transition: border-color var(--transition-speed) ease;
  width: 100%;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
input[type="url"]:focus,
input[type="number"]:focus,
select:focus,
textarea:focus {
  border-color: var(--color-secondary);
  outline: none;
}

textarea {
  min-height: 150px;
  resize: vertical;
}

.gallery-section {
  background-color: var(--color-neutral);
  padding: 4rem 0;
}

.gallery-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  margin-bottom: 2rem;
}

.gallery-item {
  border-radius: var(--border-radius);
  overflow: hidden;
  position: relative;
  transition: transform var(--transition-speed) ease;
}

.gallery-item:hover {
  transform: scale(1.05);
}

.gallery-item img {
  display: block;
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.pricing-section {
  background-color: #ffffff;
  padding: 4rem 0;
}

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

.pricing-card {
  background-color: #ffffff;
  border: 2px solid #e5e7eb;
  border-radius: var(--border-radius);
  padding: 2.5rem 2rem;
  text-align: center;
  transition: all var(--transition-speed) ease;
}

.pricing-card:hover {
  border-color: var(--color-secondary);
  box-shadow: var(--box-shadow-hover);
  transform: translateY(-4px);
}

.pricing-card.featured {
  border-color: var(--color-secondary);
  border-width: 3px;
  box-shadow: var(--box-shadow);
}

.pricing-card h3 {
  color: var(--color-primary);
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.pricing-card .price {
  color: var(--color-secondary);
  font-family: var(--font-secondary);
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.pricing-card ul {
  list-style: none;
  margin-bottom: 2rem;
  padding-left: 0;
  text-align: left;
}

.pricing-card li {
  margin-bottom: 0.75rem;
  padding-left: 1.5rem;
  position: relative;
}

.pricing-card li::before {
  color: var(--color-success);
  content: "✓";
  font-weight: 700;
  left: 0;
  position: absolute;
}

.testimonial-section {
  background-color: var(--color-neutral);
  padding: 4rem 0;
}

.testimonial-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  margin-bottom: 2rem;
}

.testimonial-card {
  background-color: #ffffff;
  border-left: 4px solid var(--color-secondary);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  padding: 2rem;
}

.testimonial-card p {
  color: var(--color-text);
  font-size: 1.0625rem;
  font-style: italic;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.testimonial-author {
  color: var(--color-primary);
  font-weight: 600;
}

.faq-section {
  background-color: #ffffff;
  padding: 4rem 0;
}

.faq-item {
  border-bottom: 1px solid #e5e7eb;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
}

.faq-question {
  color: var(--color-primary);
  cursor: pointer;
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 1rem;
  transition: color var(--transition-speed) ease;
}

.faq-question:hover {
  color: var(--color-secondary);
}

.faq-answer {
  color: var(--color-text);
  line-height: 1.6;
  padding-left: 1.5rem;
}

.video-section {
  background-color: var(--color-neutral);
  padding: 4rem 0;
}

.video-wrapper {
  border-radius: var(--border-radius);
  margin: 0 auto 2rem;
  max-width: 800px;
  overflow: hidden;
  position: relative;
  box-shadow: var(--box-shadow);
}

.video-wrapper video {
  display: block;
  height: auto;
  width: 100%;
}

footer {
  background-color: var(--color-primary);
  color: #ffffff;
  padding: 3rem 0 1.5rem;
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  gap: 3rem;
  justify-content: space-between;
  margin-bottom: 2rem;
}

.footer-section {
  flex: 1;
  min-width: 250px;
}

.footer-section h4 {
  color: var(--color-accent);
  font-size: 1.125rem;
  margin-bottom: 1rem;
}

.footer-section ul {
  list-style: none;
  padding-left: 0;
}

.footer-section li {
  margin-bottom: 0.75rem;
}

.footer-section a {
  color: #ffffff;
  text-decoration: none;
  transition: color var(--transition-speed) ease;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.5rem;
  text-align: center;
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
  margin-bottom: 0;
}

.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }

.pt-0 { padding-top: 0; }
.pt-1 { padding-top: 0.5rem; }
.pt-2 { padding-top: 1rem; }
.pt-3 { padding-top: 1.5rem; }
.pt-4 { padding-top: 2rem; }
.pt-5 { padding-top: 3rem; }

.pb-0 { padding-bottom: 0; }
.pb-1 { padding-bottom: 0.5rem; }
.pb-2 { padding-bottom: 1rem; }
.pb-3 { padding-bottom: 1.5rem; }
.pb-4 { padding-bottom: 2rem; }
.pb-5 { padding-bottom: 3rem; }

@media screen and (max-width: 992px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  .header-main {
    padding: 4rem 0 3rem;
  }

  .header-main h1 {
    font-size: 2.25rem;
  }

  .content-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }

  .grid-layout {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-layout .info-card:last-child:nth-child(odd) {
    grid-column: span 2;
  }
}

@media screen and (max-width: 768px) {
  .mobile-menu-toggle {
    display: block;
  }

  .main-nav {
    background-color: var(--color-primary);
    box-shadow: var(--box-shadow);
    display: none;
    flex-direction: column;
    gap: 0;
    left: 0;
    padding: 1rem 0;
    position: absolute;
    top: 100%;
    width: 100%;
    z-index: 999;
  }

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

  .nav-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: block;
    width: 100%;
  }

  .nav-link {
    padding: 1rem var(--gutter);
  }

  .header-main {
    padding: 3rem 0 2rem;
  }

  .header-main h1 {
    font-size: 1.875rem;
  }

  .header-main p {
    font-size: 1.0625rem;
  }

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

  .grid-layout .info-card:last-child:nth-child(odd) {
    grid-column: span 1;
  }

  .flex-container {
    flex-direction: column;
  }

  .footer-content {
    flex-direction: column;
  }

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

  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  }
}

@media screen and (max-width: 576px) {
  :root {
    --base-size: 15px;
  }

  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  h1 {
    font-size: 1.75rem;
  }

  h2 {
    font-size: 1.333rem;
  }

  .header-main h1 {
    font-size: 1.5rem;
  }

  .header-main p {
    font-size: 1rem;
  }

  .info-card,
  .content-panel,
  .data-area,
  form {
    padding: 1.5rem;
  }

  .action-button,
  .primary-cta,
  .main-action {
    padding: 0.75rem 1.5rem;
    width: 100%;
  }

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

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

@media screen and (min-width: 1200px) {
  .container {
    max-width: 1140px;
  }

  .header-main h1 {
    font-size: 3.5rem;
  }

  .header-main p {
    font-size: 1.333rem;
  }
}