/* layout.css */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  height: var(--nav-height);
  background-color: rgba(5, 11, 20, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  display: flex;
  align-items: center;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.brand {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--text-main);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand span,
.footer-brand span {
  font-weight: 800;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  gap: 30px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--text-main);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  font-size: 0.95rem;
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 15px;
}

.icon-btn {
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.2rem;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
}

.icon-btn:hover {
  background-color: var(--card-hover);
  color: var(--primary-color);
}

.mobile-menu-toggle {
  display: none;
}

/* Footer */
.site-footer {
  background-color: var(--card-bg);
  padding: 60px 0 30px;
  margin-top: 80px;
  border-top: 1px solid var(--border-color);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 15px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-main);
  text-decoration: none;
}

.footer-desc {
  color: var(--text-muted);
}

.footer-col h4 {
  margin-top: 0;
  margin-bottom: 20px;
  font-size: 1.1rem;
}

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

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition);
}

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

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Mobile Nav Overlay */
.mobile-nav-overlay {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-color);
  z-index: 999;
  display: none;
  flex-direction: column;
  padding: 20px;
}

.mobile-nav-overlay.active {
  display: flex;
}

.mobile-nav-overlay a {
  padding: 15px 0;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-main);
  font-size: 1.1rem;
  font-weight: 500;
}

/* Responsive */
@media (max-width: 992px) {
  .nav-links {
    display: none;
  }
  .mobile-menu-toggle {
    display: flex;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 14px;
  }
  .brand {
    font-size: 1.15rem;
    gap: 8px;
  }
  .brand img {
    height: 32px !important;
  }
  .header-actions {
    gap: 6px;
  }
  .header-actions #headerSignIn {
    display: none; /* Already prominent inside mobile overlay menu */
  }
  .icon-btn {
    width: 36px;
    height: 36px;
    font-size: 1.05rem;
  }
  .floating-telegram {
    width: 48px;
    height: 48px;
    bottom: 20px;
    right: 20px;
  }
  .floating-telegram svg {
    width: 26px;
    height: 26px;
  }
}

@media (max-width: 576px) {
  .brand span {
    font-size: 1.05rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .site-footer {
    padding: 40px 0 20px;
    margin-top: 40px;
  }
}