/* Custom CSS styles for Hera Booth Landing Page - Professional Solid Theme with Be Vietnam Pro font */

@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400&family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --primary: #2563EB;
  --primary-hover: #1D4ED8;
  --dark-bg: #0F172A;
  --dark-card: #1E293B;
  --dark-border: #334155;
  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
}

body {
  font-family: 'Be Vietnam Pro', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--dark-bg);
  color: var(--text-main);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Solid Clean Cards & Nav */
.solid-card {
  background-color: #1E293B;
  border: 1px solid #334155;
}

.solid-card:hover {
  border-color: #3B82F6;
  box-shadow: 0 10px 25px -5px rgba(37, 99, 235, 0.15);
}

.solid-nav {
  background-color: rgba(15, 23, 42, 0.95);
  border-bottom: 1px solid #1E293B;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #0F172A;
}
::-webkit-scrollbar-thumb {
  background: #334155;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #475569;
}

/* Accordion transition */
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, opacity 0.3s ease-out;
  opacity: 0;
}

.faq-answer.open {
  max-height: 300px;
  opacity: 1;
}

/* Smooth Scroll */
html {
  scroll-behavior: smooth;
}

/* Phần tử được ẩn bằng trình sửa inline (nút "Ẩn") */
.site-hidden {
  display: none !important;
}