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

:root {
  --color-primary: #1a2a4a;
  --color-secondary: #2c4a7c;
  --color-accent: #3a6ea5;
  --color-bg: #ffffff;
  --color-bg-alt: #f5f7fa;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-border: #e0e4e8;
  --color-white: #ffffff;
  --max-width: 1100px;
  --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.7;
  font-size: 16px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

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

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

header {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.logo {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.3px;
}

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

nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

nav a {
  color: var(--color-text);
  font-size: 0.9rem;
  padding: 8px 14px;
  border-radius: 6px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

nav a:hover,
nav a.active {
  background-color: var(--color-bg-alt);
  color: var(--color-primary);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-primary);
  margin: 5px 0;
  transition: all 0.3s ease;
}

.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: var(--color-white);
  padding: 80px 24px;
  text-align: center;
}

.hero h1 {
  font-size: 2.4rem;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
}

.hero p {
  font-size: 1.1rem;
  max-width: 650px;
  margin: 0 auto 32px;
  opacity: 0.9;
  line-height: 1.8;
}

.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
}

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

.btn-primary:hover {
  background-color: var(--color-bg-alt);
  color: var(--color-primary);
  transform: translateY(-1px);
}

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

.btn-outline:hover {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.btn-submit {
  background-color: var(--color-primary);
  color: var(--color-white);
  width: 100%;
}

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

.section {
  padding: 72px 24px;
}

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

.section-title {
  font-size: 1.8rem;
  color: var(--color-primary);
  margin-bottom: 16px;
  text-align: center;
}

.section-subtitle {
  color: var(--color-text-light);
  text-align: center;
  max-width: 600px;
  margin: 0 auto 48px;
  font-size: 1.05rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 36px 28px;
  transition: box-shadow 0.2s ease;
}

.card:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.card-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.card h3 {
  font-size: 1.15rem;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.card p {
  color: var(--color-text-light);
  font-size: 0.95rem;
}

.values-list {
  max-width: 700px;
  margin: 0 auto;
}

.values-list li {
  list-style: none;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: 1rem;
  color: var(--color-text);
}

.values-list li:last-child {
  border-bottom: none;
}

.check-icon {
  color: var(--color-accent);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

.page-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: var(--color-white);
  padding: 56px 24px;
  text-align: center;
}

.page-header h1 {
  font-size: 2rem;
  margin-bottom: 10px;
}

.page-header p {
  opacity: 0.85;
  font-size: 1.05rem;
}

.content {
  max-width: 780px;
  margin: 0 auto;
  padding: 56px 24px;
}

.content h2 {
  font-size: 1.4rem;
  color: var(--color-primary);
  margin: 36px 0 14px;
}

.content h2:first-of-type {
  margin-top: 0;
}

.content p {
  margin-bottom: 16px;
  color: var(--color-text);
}

.content ul {
  margin: 0 0 16px 24px;
  color: var(--color-text);
}

.content ul li {
  margin-bottom: 8px;
}

.disclosure-box {
  background-color: var(--color-bg-alt);
  border-left: 4px solid var(--color-accent);
  padding: 24px 28px;
  border-radius: 0 8px 8px 0;
  margin: 24px 0;
  font-style: italic;
  color: var(--color-text);
  line-height: 1.8;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  max-width: 780px;
  margin: 0 auto;
  padding: 56px 24px;
}

.about-text h2 {
  font-size: 1.4rem;
  color: var(--color-primary);
  margin-bottom: 14px;
}

.about-text p {
  margin-bottom: 16px;
  color: var(--color-text);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  max-width: 860px;
  margin: 0 auto;
  padding: 56px 24px;
}

.contact-form label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-family: var(--font-main);
  font-size: 0.95rem;
  margin-bottom: 20px;
  transition: border-color 0.2s ease;
  background-color: var(--color-bg);
}

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

.contact-form textarea {
  min-height: 140px;
  resize: vertical;
}

.contact-info h3 {
  color: var(--color-primary);
  margin-bottom: 16px;
  font-size: 1.15rem;
}

.contact-info p {
  color: var(--color-text-light);
  margin-bottom: 14px;
  font-size: 0.95rem;
}

.contact-info a {
  color: var(--color-accent);
}

footer {
  background-color: var(--color-primary);
  color: rgba(255, 255, 255, 0.8);
  padding: 48px 24px 28px;
  margin-top: auto;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
}

.footer-info h4 {
  color: var(--color-white);
  font-size: 1.05rem;
  margin-bottom: 12px;
}

.footer-info p {
  font-size: 0.88rem;
  line-height: 1.8;
  margin-bottom: 4px;
}

.footer-links h4 {
  color: var(--color-white);
  font-size: 1.05rem;
  margin-bottom: 12px;
}

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

.footer-links ul li {
  margin-bottom: 8px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.88rem;
  transition: color 0.2s ease;
}

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

.footer-bottom {
  max-width: var(--max-width);
  margin: 32px auto 0;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  text-align: center;
  font-size: 0.82rem;
}

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

  nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    flex-direction: column;
    padding: 16px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  }

  nav.open {
    display: flex;
  }

  nav a {
    padding: 12px 16px;
    width: 100%;
  }

  .hero {
    padding: 56px 20px;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

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

  .section {
    padding: 48px 20px;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px 20px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .page-header {
    padding: 40px 20px;
  }

  .page-header h1 {
    font-size: 1.6rem;
  }

  .content {
    padding: 40px 20px;
  }

  .about-grid {
    padding: 40px 20px;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.5rem;
  }

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