:root {
  --color-bg: #E0E5EC;
  --color-shadow-dark: #A3B1C6;
  --color-shadow-light: #FFFFFF;
  --color-border: #F0F3F7;
  --color-primary: #1A5276;
  --color-accent: #F39C12;
  --color-success: #27AE60;
  --color-text-primary: #2C3E50;
  --color-text-secondary: #7F8C9A;
  --color-text-body: #4F5D6B;

  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-pill: 999px;

  --shadow-raised: 8px 8px 16px var(--color-shadow-dark), -8px -8px 16px var(--color-shadow-light);
  --shadow-pressed: inset 4px 4px 8px var(--color-shadow-dark), inset -4px -4px 8px var(--color-shadow-light);

  --font-base: "Segoe UI", Roboto, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text-primary);
  font-family: var(--font-base);
  line-height: 1.5;
}

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

.neu-card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-raised);
  border: 1px solid var(--color-border);
  padding: 32px;
}

.btn-cta {
  background: var(--color-accent);
  color: var(--color-text-primary);
  border: none;
  border-radius: var(--radius-pill);
  padding: 16px 32px;
  font-weight: 700;
  font-size: 1.05rem;
  box-shadow: var(--shadow-raised);
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: box-shadow 0.15s ease;
}
.btn-cta:active { box-shadow: var(--shadow-pressed); }

.btn-secondary {
  background: var(--color-bg);
  color: var(--color-primary);
  border-radius: var(--radius-pill);
  padding: 12px 24px;
  font-weight: 600;
  box-shadow: var(--shadow-raised);
  border: none;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: box-shadow 0.15s ease;
}
.btn-secondary:active { box-shadow: var(--shadow-pressed); }

.btn-icon { height: 20px; width: auto; flex-shrink: 0; }

.site-header {
  position: sticky;
  top: 0;
  background: var(--color-bg);
  box-shadow: var(--shadow-raised);
  z-index: 10;
}
.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--color-text-primary);
  font-weight: 700;
}
.brand-logo { width: 40px; height: 40px; }
.header-actions { display: flex; align-items: center; gap: 16px; }
.lang-switcher { display: flex; gap: 6px; }
.lang-btn {
  background: var(--color-bg);
  border: none;
  border-radius: var(--radius-pill);
  padding: 6px 12px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-body);
  box-shadow: var(--shadow-raised);
  cursor: pointer;
}
.lang-btn.active { color: var(--color-primary); box-shadow: var(--shadow-pressed); }

.hero {
  max-width: 1100px;
  margin: 0 auto;
  padding: 64px 24px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}
.hero-copy h1 { font-size: 2.4rem; margin: 0 0 16px; color: var(--color-text-primary); }
.hero-copy p { color: var(--color-text-body); margin: 0 0 24px; font-size: 1.05rem; }
.hero-copy p.hero-platform-note { color: var(--color-text-body); font-size: 0.78rem; margin: 24px 0 0; }
.hero-visual { position: relative; padding: 0 40px 40px 0; }
.hero-action {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-raised);
}
.hero-mockup {
  position: absolute;
  right: 0;
  bottom: 0;
  max-height: 260px;
  width: auto;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-raised);
  border: 4px solid var(--color-bg);
}

.features, .benefits {
  max-width: 1100px;
  margin: 0 auto;
  padding: 48px 24px;
}
.features h2, .benefits h2 {
  text-align: center;
  margin-bottom: 40px;
  color: var(--color-text-primary);
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.feature-card { text-align: center; }
.feature-icon { width: 40px; height: 40px; margin: 0 auto 16px; }
.feature-card h3 { margin: 0 0 8px; font-size: 1.05rem; }
.feature-card p { color: var(--color-text-body); font-size: 0.92rem; margin: 0; }

.benefits-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.benefits-image {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-raised);
}
.benefit-grid { display: grid; gap: 24px; }
.benefit-item { display: flex; gap: 16px; align-items: flex-start; }
.benefit-icon { width: 32px; height: 32px; flex-shrink: 0; margin-top: 4px; }
.benefit-item h3 { margin: 0 0 4px; font-size: 1rem; }
.benefit-item p { color: var(--color-text-body); margin: 0; font-size: 0.92rem; }

.site-footer { background: var(--color-bg); box-shadow: var(--shadow-pressed); margin-top: 48px; }
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 24px;
  text-align: center;
  color: var(--color-text-body);
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--color-text-primary);
  font-weight: 700;
}
.footer-logo { width: 32px; height: 32px; }
.footer-links { display: flex; justify-content: center; gap: 24px; margin: 12px 0; flex-wrap: wrap; }
.footer-links a { color: var(--color-primary); text-decoration: none; font-weight: 600; }
.footer-links a:hover { text-decoration: underline; }
.footer-rights { font-size: 0.85rem; margin: 0; }

.legal-page { max-width: 700px; margin: 48px auto; padding: 0 24px; }
.legal-page h1 { color: var(--color-text-primary); margin: 0 0 8px; }
.legal-page .legal-updated { color: var(--color-text-secondary); font-size: 0.85rem; margin: 0 0 24px; }
.legal-page h2 { color: var(--color-text-primary); font-size: 1.1rem; margin: 28px 0 8px; }
.legal-page p { color: var(--color-text-body); margin: 0 0 12px; }

@media (max-width: 900px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .header-inner { flex-direction: column; align-items: flex-start; gap: 12px; }
  .hero { grid-template-columns: 1fr; padding: 40px 20px; text-align: center; }
  .hero-copy h1 { font-size: 1.8rem; }
  .hero-visual { order: -1; max-width: 320px; margin: 0 auto; padding: 0; }
  .hero-mockup { position: static; max-height: 220px; width: auto; margin: 12px auto 0; border: none; }
  .feature-grid { grid-template-columns: 1fr; }
  .benefits-content { grid-template-columns: 1fr; }
  .benefit-item { flex-direction: column; align-items: center; text-align: center; }
}