body {
  font-family: 'Be Vietnam Pro', Arial, sans-serif;
  background: #f8fafc;
  color: #222;
}
.hero {
  background: linear-gradient(90deg, #6366f1 0%, #8b5cf6 100%);
  color: #fff;
  padding: 64px 0 48px 0;
}
.btn-primary {
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  color: #fff;
  border: none;
  padding: 12px 32px;
  font-size: 1.2rem;
  border-radius: 8px;
  transition: background 0.3s, transform 0.2s;
}

/* Nút gradient nổi bật cho menu và các vị trí đặc biệt */

/* Responsive video/iframe */
.responsive-video {
  position: relative;
  width: 100%;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  padding-bottom: 56.25%; /* 16:9 ratio */
  height: 0;
  overflow: hidden;
  border-radius: 16px;
}
.responsive-video iframe,
.responsive-video video {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

@media (max-width: 600px) {
  .responsive-video {
    max-width: 100vw;
    padding-bottom: 56.25%;
    border-radius: 8px;
  }
}

/* Fallback cho block demo video short nếu Bootstrap không load hoặc thiếu class */
.ratio {
  position: relative;
  width: 100%;
  aspect-ratio: 9/16;
  display: block;
  overflow: hidden;
}
.ratio iframe {
  position: absolute;
  width: 100%;
  height: 100%;
  left: 0; top: 0;
  border: 0;
}
@media (min-width: 768px) {
  .ratio {
    max-width: 350px;
    margin-left: auto;
    margin-right: auto;
  }
}

/* Nút liên hệ responsive hơn trên mobile */
@media (max-width: 600px) {
  .quick-contact-widget .quick-contact-btn {
    min-width: 90px;
    font-size: 0.93rem;
    padding: 7px 8px;
    border-radius: 24px;
  }
  .quick-contact-widget .quick-contact-icon {
    width: 18px !important;
    height: 18px !important;
  }
  .quick-contact-widget .quick-contact-btn svg {
    width: 18px !important;
    height: 18px !important;
  }
  .quick-contact-widget .quick-contact-label {
    font-size: 0.93rem;
  }
}


.btn.btn-gradient, a.btn-gradient, button.btn-gradient {
  background: linear-gradient(90deg, #6366f1 0%, #8b5cf6 100%) !important;
  color: #fff !important;
  border: none;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(99,102,241,0.13);
  transition: background 0.3s, box-shadow 0.2s, transform 0.2s;
}

.btn-gradient:hover, .btn-gradient:focus {
  background: linear-gradient(90deg, #4f46e5 0%, #7c3aed 100%);
  color: #fff !important;
  box-shadow: 0 6px 24px rgba(99,102,241,0.18);
  transform: translateY(-2px) scale(1.03);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
  transform: translateY(-2px);
}
  pointer-events: auto;



.pricing {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  padding: 32px;
  text-align: center;
  margin-top: 40px;
}