/* Custom Styles for Kế Toán Thuế Chuẩn Luật Landing Page - Logo Synergized Theme */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Inter:wght@400;500;600;700&display=swap');

:root {
  --primary: #166534;        /* Deep Forest Green - logo 'chuan' */
  --primary-dark: #14532d;   /* Dark Forest Green */
  --primary-darker: #052e16; /* Deepest Forest */
  --leaf-green: #70a92b;     /* Fresh Leaf Green - logo 'uat' */
  --leaf-light: #84cc16;     /* Vibrant Spring Green */
  --accent-orange: #ea580c;  /* Warm Orange - left scale */
  --accent-red: #dc2626;     /* Vermilion Red - right scale */
  --accent-subtext: #c2410c; /* Subtitle 'Accounting - Tax - Law' */
  --font-heading: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
}

body {
  font-family: var(--font-body);
  color: #1e293b;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
}

/* Anti-zoom & Anti-jumping on mobile inputs and selects */
@media screen and (max-width: 768px) {
  html {
    scroll-behavior: auto !important;
  }
  input, select, textarea {
    font-size: 16px !important;
    touch-action: manipulation;
  }
}

/* Animations */
@keyframes pulse-ring {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(22, 101, 52, 0.7);
  }
  70% {
    transform: scale(1.05);
    box-shadow: 0 0 0 15px rgba(22, 101, 52, 0);
  }
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(22, 101, 52, 0);
  }
}

@keyframes shake-anim {
  0%, 100% { transform: rotate(0deg); }
  20%, 60% { transform: rotate(-12deg); }
  40%, 80% { transform: rotate(12deg); }
}

.pulse-call-btn {
  animation: pulse-ring 2s infinite cubic-bezier(0.455, 0.03, 0.515, 0.955);
}

.shake-icon {
  animation: shake-anim 2.5s infinite ease-in-out;
}

/* Logo Color Matched Gradients */
.text-gradient {
  background: linear-gradient(135deg, #14532d 0%, #166534 40%, #15803d 70%, #70a92b 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-orange {
  background: linear-gradient(135deg, #ea580c 0%, #dc2626 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-gold {
  background: linear-gradient(135deg, #b45309 0%, #d97706 50%, #f59e0b 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Glassmorphism */
.glass-card {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(226, 232, 240, 0.9);
}

.glass-nav {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.9);
}

/* Best Seller Badge with Logo Scales Gradient */
.badge-popular {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(90deg, #ea580c 0%, #dc2626 100%);
  color: #ffffff;
  padding: 5px 18px;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  box-shadow: 0 4px 14px rgba(220, 38, 38, 0.35);
  border: 1px solid rgba(254, 205, 211, 0.6);
  white-space: nowrap;
}

/* Accordion details/summary styles */
details summary::-webkit-details-marker {
  display: none;
}

details[open] summary .faq-icon {
  transform: rotate(180deg);
}

details[open] {
  border-color: #86efac;
  box-shadow: 0 4px 12px rgba(22, 101, 52, 0.06);
}

/* Toast Notification */
#social-proof-toast {
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

#social-proof-toast.hide-toast {
  opacity: 0;
  transform: translateY(20px) scale(0.95);
  pointer-events: none;
}

#social-proof-toast.show-toast {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* Mobile Sticky Bottom Safe Area */
@supports (padding: max(0px)) {
  .safe-bottom {
    padding-bottom: max(12px, env(safe-area-inset-bottom));
  }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 7px;
  height: 7px;
}
::-webkit-scrollbar-track {
  background: #f1f5f9;
}
::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #166534;
}

/* Section Divider Subtle Waves */
.bg-pattern-grid {
  background-image: radial-gradient(rgba(22, 101, 52, 0.08) 1px, transparent 1px);
  background-size: 24px 24px;
}

/* Hero Prestige Background & Ambient Executive Lighting */
.hero-prestige-bg {
  background-color: #052e16;
  background-image: 
    radial-gradient(ellipse 90% 60% at 50% -10%, rgba(22, 101, 52, 0.75), transparent 70%),
    radial-gradient(circle at 12% 35%, rgba(112, 169, 43, 0.22), transparent 45%),
    radial-gradient(circle at 88% 65%, rgba(234, 88, 12, 0.16), transparent 45%),
    linear-gradient(180deg, #052e16 0%, #073b1d 35%, #0b4523 70%, #062b16 100%);
}

.hero-luxury-grid {
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
}

/* Frosted Glass Cards on Dark Executive Background */
.glass-frost-card {
  background: rgba(255, 255, 255, 0.07);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.glass-frost-card:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(132, 204, 22, 0.45);
}

/* Hero Slider Transitions */
.hero-slide {
  transition: opacity 0.45s cubic-bezier(0.16, 1, 0.3, 1), transform 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-slide.active-slide {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.hero-slide.inactive-slide {
  display: none;
  opacity: 0;
  transform: translateY(12px);
}

.slider-tab-btn {
  transition: all 0.25s ease;
}

.slider-tab-btn.active-tab {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(132, 204, 22, 0.6);
  color: #ffffff;
}

/* Legal Security Guilloche Watermark Patterns (Hiệu ứng bảo chứng pháp lý) */
.bg-pattern-guilloche {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='60' viewBox='0 0 120 60' fill='none' stroke='%23166534' stroke-width='0.75' opacity='0.045'%3E%3Cpath d='M 0 30 Q 30 10, 60 30 T 120 30'/%3E%3Cpath d='M 0 30 Q 30 50, 60 30 T 120 30'/%3E%3Cpath d='M 0 20 Q 30 0, 60 20 T 120 20'/%3E%3Cpath d='M 0 40 Q 30 60, 60 40 T 120 40'/%3E%3Cpath d='M 0 10 Q 30 -10, 60 10 T 120 10'/%3E%3Cpath d='M 0 50 Q 30 70, 60 50 T 120 50'/%3E%3C/svg%3E");
  background-size: 120px 60px;
}

.bg-pattern-guilloche-dark {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='60' viewBox='0 0 120 60' fill='none' stroke='%2384cc16' stroke-width='0.75' opacity='0.035'%3E%3Cpath d='M 0 30 Q 30 10, 60 30 T 120 30'/%3E%3Cpath d='M 0 30 Q 30 50, 60 30 T 120 30'/%3E%3Cpath d='M 0 20 Q 30 0, 60 20 T 120 20'/%3E%3Cpath d='M 0 40 Q 30 60, 60 40 T 120 40'/%3E%3Cpath d='M 0 10 Q 30 -10, 60 10 T 120 10'/%3E%3Cpath d='M 0 50 Q 30 70, 60 50 T 120 50'/%3E%3C/svg%3E");
  background-size: 120px 60px;
}