@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;0,900;1,300;1,400;1,600&family=Dancing+Script:wght@500;600;700&family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;0,800;0,900;1,400;1,600&display=swap');

/* ==========================================================================
   Base Styles & Reset
   ========================================================================== */
:root {
  --bg-dark: #05030a;
  --purple-glow: #9d65ff;
  --purple-deep: #160a26;
  --amber-warm: #ffcf87;
  --amber-glow: rgba(255, 207, 135, 0.4);
  --text-main: #f5f0ff;
  --text-muted: #a39bb8;
}

html {
  scroll-behavior: auto !important; /* Managed by Lenis */
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: 'Be Vietnam Pro', sans-serif;
  overflow-x: hidden;
}

body {
  background-color: #05030a;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  selection-background-color: #9d65ff;
  selection-color: #ffffff;
}

::selection {
  background: rgba(157, 101, 255, 0.35);
  color: #ffcf87;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 7px;
}
::-webkit-scrollbar-track {
  background: #05030a;
}
::-webkit-scrollbar-thumb {
  background: #25143a;
  border-radius: 9999px;
  border: 1px solid rgba(157, 101, 255, 0.2);
}
::-webkit-scrollbar-thumb:hover {
  background: #9d65ff;
}

/* ==========================================================================
   Typography Classes (Tất cả font đều hỗ trợ 100% đầy đủ dấu Tiếng Việt)
   ========================================================================== */
.font-cinzel {
  font-family: 'Playfair Display', 'Be Vietnam Pro', serif;
}

.font-playfair {
  font-family: 'Playfair Display', serif;
}

.font-vietnam {
  font-family: 'Be Vietnam Pro', sans-serif;
}

.font-handwriting {
  font-family: 'Dancing Script', cursive;
}

/* ==========================================================================
   Atmospheric Lighting & Glow Effects
   ========================================================================== */
.glow-purple {
  text-shadow: 0 0 20px rgba(157, 101, 255, 0.6), 0 0 40px rgba(157, 101, 255, 0.25);
}

.glow-amber {
  text-shadow: 0 0 20px rgba(255, 207, 135, 0.6), 0 0 40px rgba(255, 207, 135, 0.25);
}

.box-glow-purple {
  box-shadow: 0 0 30px -5px rgba(157, 101, 255, 0.3), inset 0 0 15px rgba(157, 101, 255, 0.1);
}

.box-glow-amber {
  box-shadow: 0 0 35px -5px rgba(255, 207, 135, 0.35), inset 0 0 15px rgba(255, 207, 135, 0.1);
}

.spotlight-radial {
  background: radial-gradient(circle at 50% 50%, rgba(157, 101, 255, 0.15) 0%, rgba(5, 3, 10, 0.95) 75%);
}

.theatre-curtain-glow {
  background: radial-gradient(ellipse at 50% 0%, rgba(157, 101, 255, 0.2) 0%, rgba(255, 207, 135, 0.05) 40%, rgba(5, 3, 10, 1) 85%);
}

/* Noise overlay for cinematic film grain */
.grain-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 99;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* Glassmorphism */
.glass-panel {
  background: rgba(18, 9, 30, 0.65);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(157, 101, 255, 0.18);
}

.glass-panel-hover {
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.glass-panel-hover:hover {
  background: rgba(28, 14, 48, 0.85);
  border-color: rgba(255, 207, 135, 0.4);
  transform: translateY(-4px);
  box-shadow: 0 15px 35px -10px rgba(157, 101, 255, 0.3);
}

/* Custom interactive mouse aura */
#cursor-spotlight {
  position: fixed;
  top: 0;
  left: 0;
  width: 500px;
  height: 500px;
  pointer-events: none;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(157, 101, 255, 0.08) 0%, rgba(255, 207, 135, 0.03) 40%, transparent 70%);
  z-index: 40;
  transition: opacity 0.5s ease;
}

/* ==========================================================================
   Block Specific Styles
   ========================================================================== */

/* Scrollytelling Pin Layer Container */
.scrolly-container {
  position: relative;
  width: 100%;
}

.scrolly-step {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

/* Silhouette Mask & Fog Animation */
.theatre-fog {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(157, 101, 255, 0.12) 0%, transparent 70%);
  animation: fogBreathe 8s ease-in-out infinite alternate;
}

@keyframes fogBreathe {
  0% { transform: scale(1) translateY(0); opacity: 0.6; }
  100% { transform: scale(1.15) translateY(-20px); opacity: 0.95; }
}

/* Letter Cards & Vintage Paper Touch */
.parchment-card {
  background: linear-gradient(135deg, rgba(26, 14, 40, 0.92) 0%, rgba(15, 8, 25, 0.95) 100%);
  border: 1px solid rgba(157, 101, 255, 0.22);
  position: relative;
  overflow: hidden;
}

.parchment-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, #ffcf87, #9d65ff, transparent);
  opacity: 0.6;
}

/* Wax Seal Style */
.wax-seal {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5), inset 0 2px 4px rgba(255, 255, 255, 0.3), inset 0 -2px 4px rgba(0, 0, 0, 0.5);
  position: relative;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.wax-seal-amber {
  background: radial-gradient(circle at 35% 35%, #ffe6b0 0%, #ffcf87 40%, #c4892c 85%, #7a4f0d 100%);
  color: #3b2203;
}

.wax-seal-purple {
  background: radial-gradient(circle at 35% 35%, #d5b8ff 0%, #9d65ff 40%, #682ece 85%, #35107a 100%);
  color: #170438;
}

.wax-seal:hover {
  transform: scale(1.1) rotate(5deg);
}

/* Newly added letter glow animation */
@keyframes newLetterPulse {
  0% {
    box-shadow: 0 0 0 0 rgba(255, 207, 135, 0.8), 0 0 30px rgba(157, 101, 255, 0.6);
    transform: scale(1.02);
  }
  50% {
    box-shadow: 0 0 40px 10px rgba(255, 207, 135, 0.4), 0 0 60px rgba(157, 101, 255, 0.4);
    transform: scale(1.03);
  }
  100% {
    box-shadow: 0 0 20px 0 rgba(255, 207, 135, 0.2), 0 0 30px rgba(157, 101, 255, 0.2);
    transform: scale(1);
  }
}

.letter-just-added {
  animation: newLetterPulse 2.5s cubic-bezier(0.16, 1, 0.3, 1) 3;
  border-color: #ffcf87 !important;
}

/* Sound Wave Animation */
.sound-wave-bar {
  animation: soundBar 1.2s ease-in-out infinite alternate;
}

.sound-wave-bar:nth-child(2) { animation-delay: 0.2s; }
.sound-wave-bar:nth-child(3) { animation-delay: 0.4s; }
.sound-wave-bar:nth-child(4) { animation-delay: 0.6s; }

@keyframes soundBar {
  0% { height: 4px; }
  100% { height: 18px; }
}

/* Shimmer gradient text */
.text-shimmer {
  background: linear-gradient(90deg, #ffcf87 0%, #ffffff 40%, #9d65ff 70%, #ffcf87 100%);
  background-size: 200% auto;
  color: transparent;
  -webkit-background-clip: text;
  background-clip: text;
  animation: shimmer 6s linear infinite;
}

@keyframes shimmer {
  to {
    background-position: 200% center;
  }
}

/* ==========================================================================
   BLOCK 2: Frameless Cinematic Stage (A24 Film Style) - Bright 100% Opacity
   ========================================================================== */
#block-about .stage-col-left,
#block-about .stage-col-right,
#block-about h2,
#block-about h3,
#block-about p,
#block-about blockquote,
#block-about blockquote p,
#block-about span {
  opacity: 1 !important;
  filter: none !important;
}

#block-about h2,
#block-about h3 {
  color: #ffffff !important;
}

#block-about p {
  color: #e9d5ff !important;
}

#block-about blockquote,
#block-about blockquote p {
  color: #fde68a !important;
  opacity: 1 !important;
}