:root {
  --color-primary: #2B1770;
  --color-primary-light: #3D2499;
  --color-accent: #E09A28;
  --color-accent-light: #F5C55A;
  --color-bg: #FAF7F0;
  --color-bg-card: #F0EBE0;
  --color-text: #141020;
  --color-text-secondary: #4A4260;
  --color-border: #D6CEEA;
  --color-white: #FFFFFF;
  --color-error: #C0392B;

  --font-heading: Georgia, 'Times New Roman', serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --shadow-sm: 0 4px 12px rgba(43, 23, 112, 0.05);
  --shadow-md: 0 8px 24px rgba(43, 23, 112, 0.08);

  --max-width: 1100px;

  --transition: all 0.3s ease;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: normal;
  color: var(--color-primary);
  line-height: 1.2;
}

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

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

ul {
  list-style: none;
}

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.h1 { font-size: clamp(2.5rem, 5vw, 4rem); margin-bottom: 1rem; }
.h2 { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 1.5rem; }
.h3 { font-size: clamp(1.5rem, 3vw, 2rem); margin-bottom: 1rem; }
.text-lead { font-size: 1.125rem; color: var(--color-text-secondary); margin-bottom: 2rem; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 500;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-light);
  border-color: var(--color-accent);
  color: var(--color-white);
}

.btn-full {
  width: 100%;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background-color: transparent;
  transition: var(--transition);
  padding: 24px 0;
}

.header.scrolled {
  background-color: var(--color-bg);
  box-shadow: var(--shadow-sm);
  padding: 16px 0;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--color-primary);
  z-index: 101;
}

.logo img {
  width: 32px;
  height: 32px;
}

.nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav-link {
  color: var(--color-primary);
  font-weight: 500;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0%;
  height: 2px;
  background-color: var(--color-accent);
  transition: var(--transition);
}

.nav-link:hover::after {
  width: 100%;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 101;
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-primary);
  margin-bottom: 6px;
  transition: var(--transition);
}

.mobile-menu-btn span:last-child {
  margin-bottom: 0;
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 100px;
  background-image: url('images/hero-balalajka.jpg');
  background-size: cover;
  background-position: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 230, 80, 0.3);
}

.hero .container {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0;
}

.hero .eyebrow {
  display: inline-block;
  color: var(--color-accent-light);
  font-size: 0.875rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  font-weight: 600;
}

.hero h1 {
  color: var(--color-white);
}

.hero .text-lead {
  color: var(--color-white);
  opacity: 0.9;
}

.hero-trust {
  display: block;
  margin-top: 1rem;
  font-size: 0.875rem;
  color: var(--color-white);
  opacity: 0.8;
}

section {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.card {
  background-color: var(--color-bg-card);
  padding: 40px 30px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.card h3 {
  margin-bottom: 1rem;
  font-size: 1.25rem;
}

.card p {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
}

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

.split-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.split-image img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.format-features {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.feature-item {
  display: flex;
  gap: 16px;
}

.feature-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.feature-content h4 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
  color: var(--color-primary);
}

.feature-content p {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 24px;
  width: 2px;
  background-color: var(--color-border);
}

.timeline-step {
  position: relative;
  padding-left: 70px;
  margin-bottom: 40px;
}

.timeline-step:last-child {
  margin-bottom: 0;
}

.step-number {
  position: absolute;
  left: 0;
  top: 0;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 1.25rem;
  z-index: 2;
}

.timeline-step h4 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  padding-top: 10px;
}

.timeline-step p {
  color: var(--color-text-secondary);
}

.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: 1.125rem;
  color: var(--color-primary);
}

.faq-icon {
  width: 24px;
  height: 24px;
  position: relative;
  transition: var(--transition);
}

.faq-icon::before, .faq-icon::after {
  content: '';
  position: absolute;
  background-color: var(--color-accent);
  transition: var(--transition);
}

.faq-icon::before {
  top: 11px;
  left: 4px;
  width: 16px;
  height: 2px;
}

.faq-icon::after {
  top: 4px;
  left: 11px;
  width: 2px;
  height: 16px;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}

.faq-answer-inner {
  padding-bottom: 24px;
  color: var(--color-text-secondary);
}

.lead-section {
  background-color: var(--color-primary);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.lead-section::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background-image: url('images/instrument-detail.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.2;
  mix-blend-mode: luminosity;
  pointer-events: none;
}

.lead-container {
  position: relative;
  z-index: 1;
  max-width: 600px;
}

.lead-section h2, .lead-section .text-lead {
  color: var(--color-white);
}

.lead-form {
  background-color: var(--color-white);
  padding: 40px;
  border-radius: var(--radius-md);
  margin-top: 2rem;
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  margin-bottom: 8px;
  color: var(--color-text);
  font-weight: 500;
}

.form-control {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: var(--transition);
  color: var(--color-text);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(224, 154, 40, 0.1);
}

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 24px;
}

.checkbox-group input {
  margin-top: 4px;
  accent-color: var(--color-accent);
}

.checkbox-group label {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.form-error {
  color: var(--color-error);
  font-size: 0.875rem;
  margin-top: 4px;
  display: none;
}

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

.form-note {
  display: block;
  text-align: center;
  margin-top: 16px;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.footer {
  background-color: var(--color-bg-card);
  padding: 60px 0 40px;
  border-top: 1px solid var(--color-border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h5 {
  font-family: var(--font-body);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
  font-size: 1.125rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: var(--color-text-secondary);
}

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

.footer-company {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  line-height: 1.8;
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.legal-page {
  padding: 160px 0 80px;
}

.legal-content {
  max-width: 800px;
  margin: 0 auto;
  background: var(--color-white);
  padding: 60px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.legal-content h1 {
  margin-bottom: 2rem;
}

.legal-content h2 {
  font-size: 1.5rem;
  margin: 2rem 0 1rem;
}

.legal-content p {
  margin-bottom: 1rem;
  color: var(--color-text-secondary);
}

.legal-content ul {
  list-style: disc;
  padding-left: 20px;
  margin-bottom: 1.5rem;
  color: var(--color-text-secondary);
}

.legal-content li {
  margin-bottom: 0.5rem;
}

.success-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 20px;
}

.success-icon {
  width: 80px;
  height: 80px;
  background-color: var(--color-accent-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 2rem;
  color: var(--color-white);
}

.success-icon svg {
  width: 40px;
  height: 40px;
  stroke: var(--color-white);
  stroke-width: 3;
}

.success-content {
  max-width: 500px;
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: 20px;
  z-index: 1000;
  transform: translateY(100%);
  transition: transform 0.4s ease;
  box-shadow: 0 -4px 12px rgba(0,0,0,0.1);
}

.cookie-banner.visible {
  transform: translateY(0);
}

.cookie-content {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.cookie-text {
  font-size: 0.9375rem;
}

.cookie-text a {
  color: var(--color-accent-light);
  text-decoration: underline;
}

.cookie-buttons {
  display: flex;
  gap: 12px;
  flex-shrink: 0;
}

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

.btn-outline:hover {
  background: rgba(255,255,255,0.1);
}

@media (max-width: 1024px) {
  .h1 { font-size: 3rem; }
  .h2 { font-size: 2.5rem; }
  .split-layout { gap: 40px; }
}

@media (max-width: 768px) {
  section { padding: 60px 0; }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background-color: var(--color-bg);
    flex-direction: column;
    justify-content: center;
    transition: var(--transition);
    z-index: 100;
  }

  .nav-links.active {
    right: 0;
  }

  .mobile-menu-btn {
    display: block;
  }

  .mobile-menu-btn.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
  }

  .mobile-menu-btn.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .hero {
    padding-top: 80px;
    background-position: 70% center;
  }

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

  .split-image {
    order: -1;
  }

  .timeline::before {
    left: 20px;
  }

  .timeline-step {
    padding-left: 56px;
  }

  .step-number {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }

  .lead-form {
    padding: 30px 20px;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .legal-content {
    padding: 30px 20px;
  }

  .cookie-content {
    flex-direction: column;
    text-align: center;
  }
}