:root {
  --color-primary: #2A70B7;
  --color-secondary: #8D5720;
  --color-accent: #4545E8;
  --color-primary-alt: #1E40AF;
  --color-secondary-alt: #3B82F6;
  --color-accent-alt: #60A5FA;
  --color-success: #059669;
  --color-warning: #D97706;
  --color-error: #DC2626;
  --color-info: #0891B2;
  --color-neutral: #F8FAFC;
  --color-text: #111827;
  --color-text-light: #6B7280;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F3F4F6;

  --spacing-xs: 10px;
  --spacing-sm: 16px;
  --spacing-md: 26px;
  --spacing-lg: 42px;
  --spacing-xl: 68px;
  --spacing-xxl: 110px;

  --font-xs: 11px;
  --font-sm: 16px;
  --font-base: 23px;
  --font-lg: 32px;
  --font-xl: 45px;
  --font-xxl: 64px;
  --font-hero: 90px;

  --font-primary: 'Source Sans Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-secondary: Georgia, 'Times New Roman', serif;

  --max-width: 1140px;
  --gutter: 30px;

  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;

  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.15);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-primary);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
  margin: 0;
  padding: 0;
}

body.menu-open {
  overflow: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 1rem;
}

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

h2 {
  font-size: clamp(1.75rem, 4vw, var(--font-xxl));
}

h3 {
  font-size: clamp(1.5rem, 3vw, var(--font-xl));
}

h4 {
  font-size: var(--font-lg);
}

h5 {
  font-size: var(--font-base);
}

h6 {
  font-size: var(--font-sm);
}

p {
  font-size: 1rem;
  line-height: 1.6;
  margin: 0 0 1rem;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-base);
}

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

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

ul, ol {
  margin: 0 0 1rem 1.5rem;
  padding: 0;
}

li {
  margin-bottom: 0.5rem;
}

.container {
  margin: 0 auto;
  max-width: var(--max-width);
  padding-left: var(--spacing-md);
  padding-right: var(--spacing-md);
  width: 100%;
}

.container--wide {
  max-width: 1400px;
}

.container--narrow {
  max-width: 860px;
}

.navbar {
  background: var(--color-bg);
  border-bottom: 1px solid #E5E7EB;
  left: 0;
  position: fixed;
  top: 0;
  transition: all var(--transition-base);
  width: 100%;
  z-index: 1000;
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

.navbar .container {
  align-items: center;
  display: flex;
  justify-content: space-between;
  min-height: 70px;
  padding-bottom: var(--spacing-sm);
  padding-top: var(--spacing-sm);
  position: relative;
}

.navbar__logo {
  color: var(--color-primary);
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0;
}

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

.mobile-menu-toggle {
  background: none;
  border: none;
  color: var(--color-text);
  cursor: pointer;
  display: none;
  font-size: 1.75rem;
  margin: 0;
  padding: var(--spacing-xs);
  position: relative;
  z-index: 1100;
}

.mobile-menu-toggle:hover {
  color: var(--color-primary);
}

.main-nav {
  display: flex;
  margin: 0;
  padding: 0;
  position: relative;
  transition: transform var(--transition-base);
}

.nav-list {
  align-items: center;
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  margin: 0;
}

.nav-link {
  color: var(--color-text);
  display: block;
  font-size: 1rem;
  font-weight: 600;
  padding: var(--spacing-xs) var(--spacing-sm);
  position: relative;
  transition: color var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
}

.nav-link::after {
  background: var(--color-primary);
  bottom: 0;
  content: '';
  height: 2px;
  left: 50%;
  position: absolute;
  transform: translateX(-50%) scaleX(0);
  transition: transform var(--transition-base);
  width: 80%;
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: translateX(-50%) scaleX(1);
}

.primary-banner {
  align-items: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-alt) 100%);
  color: white;
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin-top: 70px;
  min-height: 600px;
  overflow: hidden;
  position: relative;
}

.primary-banner__content {
  align-items: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--spacing-xxl) var(--spacing-lg);
  position: relative;
  z-index: 2;
}

.primary-banner__content h1 {
  color: white;
  margin-bottom: var(--spacing-md);
}

.primary-banner__content p {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-lg);
  max-width: 600px;
}

.primary-banner__image {
  align-items: center;
  background-position: center;
  background-size: cover;
  display: flex;
  justify-content: center;
  position: relative;
}

.primary-banner__image::before {
  background: rgba(0, 0, 0, 0.2);
  content: '';
  height: 100%;
  left: 0;
  position: absolute;
  top: 0;
  width: 100%;
}

.content-section {
  padding: var(--spacing-xxl) 0;
}

.content-section--alt {
  background: var(--color-bg-alt);
}

.content-section__header {
  margin-bottom: var(--spacing-xl);
  text-align: center;
}

.content-section__title {
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
}

.content-section__subtitle {
  color: var(--color-text-light);
  font-size: 1.125rem;
  margin: 0 auto;
  max-width: 700px;
}

.content-grid {
  display: grid;
  gap: var(--spacing-lg);
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  margin: 0;
  padding: 0;
}

.content-grid--two {
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
}

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

.info-card {
  background: var(--color-bg);
  border: 1px solid #E5E7EB;
  border-radius: var(--border-radius-md);
  display: flex;
  flex-direction: column;
  padding: var(--spacing-lg);
  position: relative;
  transition: all var(--transition-base);
}

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

.info-card__icon {
  align-items: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  border-radius: 50%;
  color: white;
  display: flex;
  font-size: 1.5rem;
  height: 60px;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  width: 60px;
}

.info-card__title {
  color: var(--color-text);
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.info-card__description {
  color: var(--color-text-light);
  flex: 1;
  font-size: 1rem;
  line-height: 1.6;
}

.info-card__link {
  align-items: center;
  color: var(--color-primary);
  display: inline-flex;
  font-weight: 600;
  gap: 0.5rem;
  margin-top: var(--spacing-md);
  transition: gap var(--transition-base);
}

.info-card__link:hover {
  gap: 0.75rem;
}

.detail-box {
  background: white;
  border-left: 4px solid var(--color-primary);
  border-radius: var(--border-radius-sm);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-md);
}

.detail-box__header {
  align-items: center;
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.detail-box__title {
  color: var(--color-text);
  font-size: 1.25rem;
  margin: 0;
}

.detail-box__content {
  color: var(--color-text-light);
}

.action-button {
  background: var(--color-primary);
  border: 2px solid var(--color-primary);
  border-radius: var(--border-radius-sm);
  color: white;
  cursor: pointer;
  display: inline-block;
  font-family: var(--font-primary);
  font-size: 1rem;
  font-weight: 600;
  padding: var(--spacing-sm) var(--spacing-lg);
  text-align: center;
  transition: all var(--transition-base);
}

.action-button:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: white;
  transform: translateY(-2px);
}

.action-button--secondary {
  background: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.action-button--secondary:hover {
  background: var(--color-primary);
  color: white;
}

.action-button--large {
  font-size: 1.125rem;
  padding: var(--spacing-md) var(--spacing-xl);
}

.action-button--block {
  display: block;
  width: 100%;
}

.filter-controls {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  margin-bottom: var(--spacing-xl);
}

.filter-button {
  background: var(--color-bg-alt);
  border: 1px solid #E5E7EB;
  border-radius: var(--border-radius-sm);
  color: var(--color-text);
  cursor: pointer;
  font-family: var(--font-primary);
  font-size: 0.875rem;
  font-weight: 600;
  padding: var(--spacing-xs) var(--spacing-md);
  transition: all var(--transition-base);
}

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

.sidebar-layout {
  display: grid;
  gap: var(--spacing-xl);
  grid-template-columns: 280px 1fr;
}

.sidebar-nav {
  align-self: start;
  background: var(--color-bg-alt);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  position: sticky;
  top: 90px;
}

.sidebar-nav__title {
  border-bottom: 2px solid var(--color-primary);
  color: var(--color-text);
  font-size: 1.125rem;
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
}

.sidebar-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sidebar-nav__item {
  margin-bottom: var(--spacing-xs);
}

.sidebar-nav__link {
  border-radius: var(--border-radius-sm);
  color: var(--color-text);
  display: block;
  font-size: 0.9375rem;
  padding: var(--spacing-xs) var(--spacing-sm);
  transition: all var(--transition-base);
}

.sidebar-nav__link:hover,
.sidebar-nav__link.active {
  background: white;
  color: var(--color-primary);
}

.main-content {
  min-height: 400px;
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  color: var(--color-text);
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.form-input,
.form-textarea,
.form-select {
  background: white;
  border: 1px solid #D1D5DB;
  border-radius: var(--border-radius-sm);
  color: var(--color-text);
  font-family: var(--font-primary);
  font-size: 1rem;
  padding: var(--spacing-sm);
  transition: all var(--transition-base);
  width: 100%;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(42, 112, 183, 0.1);
  outline: none;
}

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

.form-error {
  border-color: var(--color-error);
}

.form-error-message {
  color: var(--color-error);
  display: block;
  font-size: 0.875rem;
  margin-top: var(--spacing-xs);
}

.form-success-message {
  background: #D1FAE5;
  border-left: 4px solid var(--color-success);
  border-radius: var(--border-radius-sm);
  color: #065F46;
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-md);
}

.testimonial-card {
  background: white;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-xl);
  position: relative;
}

.testimonial-card__quote {
  color: var(--color-text-light);
  font-family: var(--font-secondary);
  font-size: 1.125rem;
  font-style: italic;
  line-height: 1.8;
  margin-bottom: var(--spacing-md);
}

.testimonial-card__author {
  align-items: center;
  display: flex;
  gap: var(--spacing-md);
}

.testimonial-card__avatar {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  border-radius: 50%;
  color: white;
  display: flex;
  font-size: 1.25rem;
  font-weight: 700;
  height: 50px;
  justify-content: center;
  align-items: center;
  width: 50px;
}

.testimonial-card__info {
  flex: 1;
}

.testimonial-card__name {
  color: var(--color-text);
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 0.25rem;
}

.testimonial-card__title {
  color: var(--color-text-light);
  font-size: 0.875rem;
  margin: 0;
}

.stats-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-alt) 100%);
  color: white;
  padding: var(--spacing-xxl) 0;
}

.stats-grid {
  display: grid;
  gap: var(--spacing-xl);
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

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

.stat-item__value {
  color: white;
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1;
  margin-bottom: var(--spacing-sm);
}

.stat-item__label {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.125rem;
  font-weight: 600;
}

.faq-section {
  padding: var(--spacing-xxl) 0;
}

.faq-item {
  background: white;
  border: 1px solid #E5E7EB;
  border-radius: var(--border-radius-md);
  margin-bottom: var(--spacing-md);
  overflow: hidden;
}

.faq-question {
  align-items: center;
  background: transparent;
  border: none;
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  font-family: var(--font-primary);
  font-size: 1.125rem;
  font-weight: 600;
  justify-content: space-between;
  padding: var(--spacing-md);
  text-align: left;
  transition: background var(--transition-base);
  width: 100%;
}

.faq-question:hover {
  background: var(--color-bg-alt);
}

.faq-question__icon {
  color: var(--color-primary);
  font-size: 1.25rem;
  transition: transform var(--transition-base);
}

.faq-item.active .faq-question__icon {
  transform: rotate(180deg);
}

.faq-answer {
  display: none;
  padding: 0 var(--spacing-md) var(--spacing-md);
}

.faq-item.active .faq-answer {
  display: block;
}

.faq-answer p {
  color: var(--color-text-light);
  line-height: 1.7;
  margin: 0;
}

.cta-section {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-primary) 100%);
  color: white;
  padding: var(--spacing-xxl) 0;
  text-align: center;
}

.cta-section__title {
  color: white;
  margin-bottom: var(--spacing-md);
}

.cta-section__description {
  color: rgba(255, 255, 255, 0.95);
  font-size: 1.25rem;
  margin: 0 auto var(--spacing-lg);
  max-width: 700px;
}

.cta-section .action-button {
  background: white;
  border-color: white;
  color: var(--color-primary);
}

.cta-section .action-button:hover {
  background: var(--color-bg-alt);
  border-color: var(--color-bg-alt);
  transform: translateY(-2px);
}

.footer {
  background: #1F2937;
  color: #D1D5DB;
  padding: var(--spacing-xxl) 0 var(--spacing-md);
}

.footer__grid {
  display: grid;
  gap: var(--spacing-xl);
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  margin-bottom: var(--spacing-xl);
}

.footer__section-title {
  color: white;
  font-size: 1.125rem;
  margin-bottom: var(--spacing-md);
}

.footer__links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer__link-item {
  margin-bottom: var(--spacing-xs);
}

.footer__link {
  color: #D1D5DB;
  font-size: 0.9375rem;
  transition: color var(--transition-base);
}

.footer__link:hover {
  color: white;
}

.footer__bottom {
  border-top: 1px solid #374151;
  padding-top: var(--spacing-md);
  text-align: center;
}

.footer__copyright {
  color: #9CA3AF;
  font-size: 0.875rem;
  margin: 0;
}

.breadcrumb {
  align-items: center;
  display: flex;
  font-size: 0.875rem;
  gap: var(--spacing-xs);
  list-style: none;
  margin: var(--spacing-md) 0;
  padding: 0;
}

.breadcrumb__item {
  color: var(--color-text-light);
}

.breadcrumb__separator {
  color: #D1D5DB;
}

.breadcrumb__link {
  color: var(--color-primary);
}

.breadcrumb__link:hover {
  text-decoration: underline;
}

.badge {
  background: var(--color-primary);
  border-radius: 12px;
  color: white;
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
}

.badge--success {
  background: var(--color-success);
}

.badge--warning {
  background: var(--color-warning);
}

.badge--error {
  background: var(--color-error);
}

.alert {
  border-left: 4px solid var(--color-info);
  border-radius: var(--border-radius-sm);
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-md);
}

.alert--info {
  background: #E0F2FE;
  border-color: var(--color-info);
  color: #075985;
}

.alert--success {
  background: #D1FAE5;
  border-color: var(--color-success);
  color: #065F46;
}

.alert--warning {
  background: #FEF3C7;
  border-color: var(--color-warning);
  color: #92400E;
}

.alert--error {
  background: #FEE2E2;
  border-color: var(--color-error);
  color: #991B1B;
}

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

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

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

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.pt-0 { padding-top: 0; }
.pt-1 { padding-top: var(--spacing-xs); }
.pt-2 { padding-top: var(--spacing-sm); }
.pt-3 { padding-top: var(--spacing-md); }
.pt-4 { padding-top: var(--spacing-lg); }
.pt-5 { padding-top: var(--spacing-xl); }

.pb-0 { padding-bottom: 0; }
.pb-1 { padding-bottom: var(--spacing-xs); }
.pb-2 { padding-bottom: var(--spacing-sm); }
.pb-3 { padding-bottom: var(--spacing-md); }
.pb-4 { padding-bottom: var(--spacing-lg); }
.pb-5 { padding-bottom: var(--spacing-xl); }

@media (max-width: 960px) {
  .mobile-menu-toggle {
    display: block;
  }

  .main-nav {
    background: white;
    box-shadow: var(--shadow-lg);
    height: 100vh;
    left: 0;
    position: fixed;
    top: 0;
    transform: translateX(-100%);
    width: 280px;
    z-index: 1050;
  }

  body.menu-open .main-nav {
    transform: translateX(0);
  }

  .nav-list {
    flex-direction: column;
    gap: 0;
    margin-top: 70px;
    padding: var(--spacing-md);
  }

  .nav-item {
    border-bottom: 1px solid #E5E7EB;
    width: 100%;
  }

  .nav-link {
    padding: var(--spacing-md);
    width: 100%;
  }

  .nav-link::after {
    display: none;
  }

  .primary-banner {
    grid-template-columns: 1fr;
    min-height: 500px;
  }

  .primary-banner__image {
    display: none;
  }

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

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

  .sidebar-nav {
    position: static;
  }

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

@media (min-width: 720px) {
  .content-grid--two {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (min-width: 960px) {
  .content-grid--four {
    grid-template-columns: repeat(4, 1fr);
  }

  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .primary-banner__content {
    padding: var(--spacing-xxl);
  }
}

@media (min-width: 1280px) {
  .container {
    padding-left: var(--spacing-lg);
    padding-right: var(--spacing-lg);
  }

  .content-section {
    padding: calc(var(--spacing-xxl) * 1.2) 0;
  }
}