/* ==========================================================================
   TẾT TRUNG THU - YAMAHA TOWN NAM TIẾN LANDING PAGE STYLES
   Pixel-Accurate to flyer-mattruoc.pdf
   Mobile Fullscreen Edge-to-Edge Experience
   Silky Smooth Stretched-Out Gentle Animations
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS VARIABLES & DESIGN TOKENS
   -------------------------------------------------------------------------- */
:root {
  /* Brand & Festival Palette */
  --primary-gold: #ffcf24;
  --secondary-gold: #ffa800;
  --deep-purple: #130a2a;
  --mid-purple: #23124d;
  --bright-neon: #a855f7;
  --cyan-beam: #38bdf8;
  --hotline-red: #e11d48;
  --white: #ffffff;

  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.12);
  --glass-border: rgba(255, 255, 255, 0.4);
  --glass-glow: 0 8px 32px 0 rgba(112, 0, 255, 0.35);

  /* Silky Gentle Easing Curves */
  --ease-gentle: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  --ease-float: cubic-bezier(0.45, 0.05, 0.55, 0.95);
}

/* --------------------------------------------------------------------------
   RESET & FOUNDATIONS
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100%;
  height: 100%;
  font-family: 'Be Vietnam Pro', sans-serif;
  background: #09031c;
  color: var(--white);
  overflow-x: hidden;
  overflow-y: auto;
  min-height: 100dvh;
}

/* --------------------------------------------------------------------------
   FLOATING TOP CONTROL BAR
   -------------------------------------------------------------------------- */
.top-controls {
  position: fixed;
  top: 14px;
  right: 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 1000;
  pointer-events: auto;
}

.control-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ctrl-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(26, 12, 58, 0.82);
  color: #fff;
  border: 1px solid rgba(255, 207, 36, 0.45);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.45);
  transition: all 0.25s var(--ease-gentle);
  user-select: none;
}

.ctrl-btn:hover {
  background: rgba(43, 19, 96, 0.95);
  border-color: var(--primary-gold);
  transform: translateY(-2px);
  box-shadow: 0 6px 22px rgba(255, 207, 36, 0.35);
}

.ctrl-btn:active {
  transform: translateY(0) scale(0.97);
}

.ctrl-icon {
  width: 16px;
  height: 16px;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.brand-badge-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 207, 36, 0.15);
  border: 1px solid rgba(255, 207, 36, 0.3);
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 700;
  color: var(--primary-gold);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 10px #10b981;
  animation: pulseDot 2s infinite ease-in-out;
}

@keyframes pulseDot {
  0%, 100% { transform: scale(0.9); opacity: 0.8; }
  50% { transform: scale(1.3); opacity: 1; }
}

/* --------------------------------------------------------------------------
   STAGE WRAPPER & PARTICLES
   -------------------------------------------------------------------------- */
.page-container {
  position: relative;
  width: 100%;
  min-height: 100dvh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 40px 16px;
}

.ambient-particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 5;
}

/* --------------------------------------------------------------------------
   THE 1748x2480 FESTIVAL HERO STAGE
   Ratio: 1748 / 2480 = 0.7048387
   -------------------------------------------------------------------------- */
.festival-stage {
  position: relative;
  width: min(100vw - 32px, 740px, calc((100dvh - 50px) * 0.7048));
  aspect-ratio: 1748 / 2480;
  border-radius: 28px;
  overflow: hidden;
  box-shadow: 
    0 30px 80px -15px rgba(0, 0, 0, 0.95),
    0 0 70px rgba(106, 38, 219, 0.4),
    inset 0 0 0 1px rgba(255, 255, 255, 0.15);
  background: #0d0728;
  isolation: isolate;
  contain: layout style;
}

/* Common Layer Element */
.layer-item {
  position: absolute;
  pointer-events: none;
  user-select: none;
  will-change: transform, opacity;
}

.layer-img {
  width: 100%;
  height: auto;
  display: block;
}

.layer-img.full-fit {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* --------------------------------------------------------------------------
   INDIVIDUAL STAGE LAYERS (COORDINATES MATCHING FLYER)
   -------------------------------------------------------------------------- */

/* Layer 1: Background Universe (0.0s) */
.layer-nen {
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

/* Twinkle Stars */
.star-sparkle {
  position: absolute;
  width: 5.5%;
  z-index: 4;
}

.sparkle-img {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 0 12px #fff) drop-shadow(0 0 20px #ffea79);
  animation: starTwinkle 3s ease-in-out infinite alternate;
}

.star-1 .sparkle-img { animation-delay: 0.2s; }
.star-2 .sparkle-img { animation-delay: 1.1s; }
.star-3 .sparkle-img { animation-delay: 2.0s; }
.star-4 .sparkle-img { animation-delay: 1.6s; }

@keyframes starTwinkle {
  0% { transform: scale(0.7) rotate(0deg); opacity: 0.35; }
  50% { transform: scale(1.15) rotate(45deg); opacity: 1; }
  100% { transform: scale(0.8) rotate(90deg); opacity: 0.4; }
}

/* Layer 2: 3D Frames & Light Beam */
.layer-khung-dai {
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  opacity: 0.95;
}

.layer-khung-giua {
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 3;
  opacity: 0.85;
}

.layer-anh-sang {
  top: 14.5%;
  left: 0;
  width: 100%;
  z-index: 4;
}

/* Layer 3: Golden Full Moon */
.layer-trang {
  top: 3.5%;
  right: 2%;
  width: 35%;
  z-index: 5;
}

.moon-spin-glow {
  filter: drop-shadow(0 0 35px rgba(255, 215, 0, 0.75)) drop-shadow(0 0 70px rgba(255, 170, 0, 0.4));
  animation: moonGentlePulse 6s ease-in-out infinite alternate;
}

@keyframes moonGentlePulse {
  0% { transform: scale(1) translateY(0); filter: drop-shadow(0 0 30px rgba(255, 215, 0, 0.65)); }
  100% { transform: scale(1.03) translateY(-4px); filter: drop-shadow(0 0 50px rgba(255, 225, 50, 0.85)); }
}

/* Layer 4: Brand Header */
.layer-logo {
  top: 2.2%;
  left: 4.5%;
  width: 12.5%;
  z-index: 6;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.4));
}

.layer-brand-title {
  top: 3.2%;
  left: 19.5%;
  width: 62.0%;
  z-index: 6;
  filter: drop-shadow(0 4px 15px rgba(0, 0, 0, 0.5));
}

/* Layer 5: "THƯ MỜI THAM GIA" */
.layer-thu-moi {
  top: 6.8%;
  left: 14%;
  width: 32%;
  z-index: 8;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.5));
}

/* Layer 6: Grand 3D Festival Title "ĐÊM HỘI TRĂNG RẰM" */
.layer-dem-hoi {
  top: 8.2%;
  left: 50%;
  transform: translateX(-50%);
  width: 90%;
  z-index: 9;
}

.title-floating {
  filter: drop-shadow(0 12px 25px rgba(0, 0, 0, 0.6)) drop-shadow(0 0 30px rgba(255, 207, 36, 0.65));
  animation: titleGentleFloat 5s ease-in-out infinite alternate;
}

@keyframes titleGentleFloat {
  0% { transform: translateY(0); }
  100% { transform: translateY(-5px); }
}

/* Layer 7: Tagline Ribbon */
.layer-ribbon-tagline {
  top: 29.2%;
  left: 50%;
  transform: translateX(-50%);
  width: 78%;
  z-index: 10;
  filter: drop-shadow(0 8px 20px rgba(0, 0, 0, 0.5));
}

/* Layer 8: Celestial Road */
.layer-cung-duong {
  top: 35.0%;
  left: -22%;
  width: 210%;
  height: auto;
  z-index: 11;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1) 75%, rgba(0, 0, 0, 0) 94%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1) 75%, rgba(0, 0, 0, 0) 94%);
}

.road-shimmer {
  animation: roadGlow 4s ease-in-out infinite alternate;
}

@keyframes roadGlow {
  0% { filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.2)); }
  100% { filter: drop-shadow(0 0 25px rgba(168, 85, 247, 0.55)); }
}

/* Atmospheric Fluffy Clouds - Hidden to preserve clean backdrop matching flyer */
.cloud-m1,
.cloud-m5,
.cloud-m6 {
  display: none;
}

/* Layer 9: THE CENTRAL INVITATION CARD (KÍNH MỜI) */
.layer-invitation-card {
  top: 36.8%;
  left: 50%;
  transform: translateX(-50%);
  width: 48%;
  z-index: 26;
  pointer-events: auto;
}

.invitation-card-inner {
  position: relative;
  width: 100%;
  cursor: pointer;
  transition: transform 0.35s var(--ease-spring), filter 0.35s var(--ease-gentle);
}

.invitation-card-inner:hover {
  transform: scale(1.035) translateY(-4px);
  filter: drop-shadow(0 15px 35px rgba(0, 0, 0, 0.6)) drop-shadow(0 0 25px rgba(255, 215, 0, 0.5));
}

.invitation-img {
  width: 100%;
  height: auto;
  display: block;
  filter: drop-shadow(0 12px 28px rgba(0, 0, 0, 0.45));
}

/* Layer 10: CHỊ HẰNG & CHÚ CUỘI */
.layer-chi-hang {
  top: 46.5%;
  left: -18%;
  width: 54%;
  z-index: 30;
  pointer-events: auto;
  cursor: pointer;
}

.layer-chu-cuoi {
  top: 49.0%;
  right: -8%;
  width: 51%;
  z-index: 30;
  pointer-events: auto;
  cursor: pointer;
}

.char-hover {
  filter: drop-shadow(0 15px 30px rgba(0, 0, 0, 0.5)) drop-shadow(0 0 20px rgba(255, 215, 0, 0.35));
  transition: transform 0.4s var(--ease-spring);
}

.layer-chi-hang:hover .char-hover {
  transform: scale(1.03) translateY(-4px);
}

.layer-chu-cuoi:hover .char-hover {
  transform: scale(1.03) translateY(-4px);
}

/* Idle Hover Animations for Characters */
.layer-chi-hang .char-hover {
  animation: chiHangGentleSway 5.5s ease-in-out infinite alternate;
}

.layer-chu-cuoi .char-hover {
  animation: chuCuoiGentleSway 4.8s ease-in-out infinite alternate;
}

@keyframes chiHangGentleSway {
  0% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-5px) rotate(0.8deg); }
  100% { transform: translateY(-9px) rotate(-0.5deg); }
}

@keyframes chuCuoiGentleSway {
  0% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-6px) rotate(-1deg); }
  100% { transform: translateY(-10px) rotate(1deg); }
}

/* Character Speech Bubbles */
.char-bubble {
  position: absolute;
  top: -24px;
  background: rgba(255, 255, 255, 0.96);
  color: #2b1055;
  padding: 8px 14px;
  border-radius: 14px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  font-size: 11.5px;
  font-weight: 700;
  line-height: 1.35;
  width: 170px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s, transform 0.3s var(--ease-spring);
  z-index: 50;
}

.char-bubble-left {
  left: 20%;
  transform: translateY(10px);
}

.char-bubble-right {
  right: 15%;
  transform: translateY(10px);
}

.layer-chi-hang:hover .char-bubble,
.layer-chu-cuoi:hover .char-bubble {
  opacity: 1;
  transform: translateY(-8px);
}

/* Layer 11: Mooncakes */
.layer-cake {
  pointer-events: auto;
  cursor: pointer;
  z-index: 34;
}

.cake-hover {
  filter: drop-shadow(0 8px 20px rgba(0, 0, 0, 0.5)) drop-shadow(0 0 15px rgba(255, 207, 36, 0.4));
  transition: transform 0.3s var(--ease-spring);
}

.layer-cake:hover .cake-hover {
  transform: scale(1.15) translateY(-5px);
  filter: drop-shadow(0 12px 28px rgba(0, 0, 0, 0.6)) drop-shadow(0 0 25px rgba(255, 207, 36, 0.8));
}

.cake-hint {
  position: absolute;
  top: -22px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(26, 12, 58, 0.92);
  color: var(--primary-gold);
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 9.5px;
  font-weight: 800;
  white-space: nowrap;
  border: 1px solid rgba(255, 207, 36, 0.5);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
}

.layer-cake:hover .cake-hint {
  opacity: 1;
  transform: translateX(-50%) translateY(-4px);
}

/* Individual Mooncake Coordinates */
.cake-3 {
  top: 66.0%;
  left: 38.0%;
  width: 7.5%;
  z-index: 33;
}

.cake-2 {
  top: 62.5%;
  left: 54.0%;
  width: 12.5%;
  z-index: 33;
}

.cake-1 {
  top: 72.5%;
  left: 58.0%;
  width: 22.0%;
  z-index: 39;
}

/* Layer 12: Thỏ Ngọc */
.layer-tho-ngoc {
  top: 73.0%;
  left: 21.0%;
  width: 21.0%;
  z-index: 40;
  pointer-events: auto;
  cursor: pointer;
}

.rabbit-bobbing {
  filter: drop-shadow(0 8px 20px rgba(0, 0, 0, 0.4)) drop-shadow(0 0 15px rgba(255, 255, 255, 0.6));
  animation: rabbitHop 3.2s ease-in-out infinite alternate;
  transition: transform 0.3s var(--ease-spring);
}

.layer-tho-ngoc:hover .rabbit-bobbing {
  transform: scale(1.12) translateY(-4px);
}

@keyframes rabbitHop {
  0% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-4px) scale(1.02); }
  100% { transform: translateY(-7px) scale(1.01); }
}

.rabbit-dialogue {
  position: absolute;
  top: -24px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(255, 255, 255, 0.95);
  color: #2b1055;
  padding: 5px 10px;
  border-radius: 12px;
  font-size: 10px;
  font-weight: 800;
  white-space: nowrap;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.3);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s;
}

.layer-tho-ngoc:hover .rabbit-dialogue {
  opacity: 1;
}

/* Layer 13: Golden Foreground Clouds & Hotline */
.cloud-layer {
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, #000 60%, rgba(0, 0, 0, 0.75) 75%, transparent 95%);
  mask-image: linear-gradient(to bottom, #000 0%, #000 60%, rgba(0, 0, 0, 0.75) 75%, transparent 95%);
}

.stage-cloud-glow {
  bottom: 0;
  left: 0;
  width: 100%;
  height: 38%;
  background: radial-gradient(ellipse 95% 75% at 50% 100%, rgba(245, 165, 25, 0.95) 0%, rgba(230, 140, 20, 0.8) 45%, rgba(210, 110, 15, 0) 100%);
  z-index: 32;
  pointer-events: none;
  filter: blur(12px);
}

.cloud-m2 {
  bottom: 4%;
  left: -28%;
  width: 175%;
  z-index: 34;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, #000 55%, rgba(0, 0, 0, 0.5) 75%, transparent 92%);
  mask-image: linear-gradient(to bottom, #000 0%, #000 55%, rgba(0, 0, 0, 0.5) 75%, transparent 92%);
}

.cloud-m4 {
  bottom: 2%;
  right: -18%;
  width: 185%;
  z-index: 35;
  filter: drop-shadow(0 0 25px rgba(255, 200, 30, 0.45));
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, #000 60%, rgba(0, 0, 0, 0.5) 80%, transparent 95%);
  mask-image: linear-gradient(to bottom, #000 0%, #000 60%, rgba(0, 0, 0, 0.5) 80%, transparent 95%);
}

.cloud-m3 {
  bottom: 0%;
  left: -35%;
  width: 170%;
  z-index: 36;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, #000 50%, rgba(0, 0, 0, 0.4) 75%, transparent 92%);
  mask-image: linear-gradient(to bottom, #000 0%, #000 50%, rgba(0, 0, 0, 0.4) 75%, transparent 92%);
}

.cloud-m4-base {
  bottom: -4%;
  left: -15%;
  width: 175%;
  z-index: 37;
  filter: drop-shadow(0 0 20px rgba(255, 200, 30, 0.4));
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, #000 70%, transparent 98%);
  mask-image: linear-gradient(to bottom, #000 0%, #000 70%, transparent 98%);
}

.cloud-dream-blur {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 24%;
  background: radial-gradient(
    ellipse 100% 80% at 50% 100%, 
    rgba(255, 190, 35, 0.8) 0%, 
    rgba(240, 145, 20, 0.5) 40%, 
    rgba(220, 100, 15, 0.18) 70%, 
    transparent 100%
  );
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  -webkit-mask-image: linear-gradient(to top, #000 35%, rgba(0, 0, 0, 0.65) 70%, transparent 100%);
  mask-image: linear-gradient(to top, #000 35%, rgba(0, 0, 0, 0.65) 70%, transparent 100%);
  z-index: 38;
  pointer-events: none;
}

.layer-frame-strip {
  bottom: 0;
  left: 0;
  width: 100%;
  z-index: 20;
  -webkit-mask-image: linear-gradient(to top, rgba(0, 0, 0, 1) 60%, rgba(0, 0, 0, 0) 100%);
  mask-image: linear-gradient(to top, rgba(0, 0, 0, 1) 60%, rgba(0, 0, 0, 0) 100%);
}

.layer-dia-chi {
  bottom: 8px;
  left: 0;
  width: 100%;
  z-index: 42;
  pointer-events: auto;
}

.hotline-link {
  display: block;
  width: 100%;
  transition: transform 0.2s ease, filter 0.2s ease;
}

.hotline-link:hover {
  transform: translateY(-2px);
  filter: brightness(1.1) drop-shadow(0 0 15px rgba(255, 207, 36, 0.6));
}

/* ==========================================================================
   ENERGIZED & ELEGANT SEQUENTIAL ENTRANCE ANIMATIONS (~4.8 SECONDS)
   Smooth, professional succession where each element unfolds seamlessly
   ========================================================================== */

/* Phase 1: Sky & Stars (0.0s) */
.anim-phase-1 {
  animation: entranceFadeIn 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.0s both;
}

/* Phase 2: 3D Perspective Geometry Frames & Laser Streak (0.25s) */
.anim-phase-2 {
  animation: entranceScaleIn 0.7s cubic-bezier(0.16, 1, 0.3, 1) 0.25s both;
}

/* Phase 3: Golden Full Moon Rise (0.55s) */
.anim-phase-3 {
  animation: entranceMoonRise 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.55s both;
}

/* Phase 4: Yamaha Logo & Nam Tiến Brand Title (0.85s) */
.anim-phase-4 {
  animation: entranceSlideDown 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.85s both;
}

/* Phase 5: "THƯ MỜI THAM GIA" Cursive Drop (1.15s) */
.anim-phase-5 {
  animation: entranceTiltIn 0.6s cubic-bezier(0.16, 1, 0.3, 1) 1.15s both;
}

/* Phase 6: Grand 3D "ĐÊM HỘI TRĂNG RẰM" Title (1.45s) */
.anim-phase-6 {
  animation: entrancePopTitle 0.75s cubic-bezier(0.16, 1, 0.3, 1) 1.45s both;
}

/* Phase 7: Tagline Ribbon Banner (1.85s) */
.anim-phase-7 {
  animation: entranceRibbon 0.65s cubic-bezier(0.16, 1, 0.3, 1) 1.85s both;
}

/* Phase 8: Celestial Pathway & Ambient Clouds (2.15s) */
.anim-phase-8 {
  animation: entranceRoadUnroll 0.75s cubic-bezier(0.16, 1, 0.3, 1) 2.15s both;
}

/* Phase 9: Central "KÍNH MỜI" Invitation Card (2.45s) */
.anim-phase-9 {
  animation: entranceCardFloat 0.75s cubic-bezier(0.16, 1, 0.3, 1) 2.45s both;
}

/* Phase 10: Chị Hằng & Chú Cuội Gentle Arrival (2.85s) */
.layer-chi-hang.anim-phase-10 {
  animation: entranceChiHang 0.8s cubic-bezier(0.16, 1, 0.3, 1) 2.85s both;
}

.layer-chu-cuoi.anim-phase-10 {
  animation: entranceChuCuoi 0.8s cubic-bezier(0.16, 1, 0.3, 1) 2.85s both;
}

/* Phase 11: The Festive Mooncakes (3.25s) */
.cake-3.anim-phase-11 {
  animation: entranceCakeDrop 0.55s cubic-bezier(0.16, 1, 0.3, 1) 3.25s both;
}
.cake-2.anim-phase-11 {
  animation: entranceCakeDrop 0.55s cubic-bezier(0.16, 1, 0.3, 1) 3.45s both;
}
.cake-1.anim-phase-11 {
  animation: entranceCakeDrop 0.6s cubic-bezier(0.16, 1, 0.3, 1) 3.65s both;
}

/* Phase 12: Adorable Jade Rabbit Thỏ Ngọc (3.85s) */
.anim-phase-12 {
  animation: entranceRabbitJump 0.65s cubic-bezier(0.16, 1, 0.3, 1) 3.85s both;
}

/* Phase 13: Golden Clouds, Dream Blur & Bottom Hotline Bar (4.15s) */
.anim-phase-13 {
  animation: entranceSlideUp 0.7s cubic-bezier(0.16, 1, 0.3, 1) 4.15s both;
}

/* --------------------------------------------------------------------------
   KEYFRAMES FOR GENTLE ENTRANCES
   -------------------------------------------------------------------------- */
@keyframes entranceFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes entranceScaleIn {
  from {
    opacity: 0;
    transform: scale(0.92);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes entranceMoonRise {
  from {
    opacity: 0;
    transform: translate3d(40px, -40px, 0) scale(0.75);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0) scale(1);
  }
}

@keyframes entranceSlideDown {
  from {
    opacity: 0;
    transform: translate3d(0, -30px, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

@keyframes entranceTiltIn {
  from {
    opacity: 0;
    transform: translate3d(0, -25px, 0) rotate(-4deg);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0) rotate(0deg);
  }
}

@keyframes entrancePopTitle {
  from {
    opacity: 0;
    transform: translateX(-50%) scale(0.8) translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) scale(1) translateY(0);
  }
}

@keyframes entranceRibbon {
  from {
    opacity: 0;
    transform: translateX(-50%) scaleX(0.85) translateY(15px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) scaleX(1) translateY(0);
  }
}

@keyframes entranceRoadUnroll {
  from {
    opacity: 0;
    transform: scale(0.92) translateY(25px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@keyframes entranceCardFloat {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(35px) scale(0.88);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0) scale(1);
  }
}

@keyframes entranceChiHang {
  from {
    opacity: 0;
    transform: translate3d(-60px, 15px, 0) scale(0.92);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0) scale(1);
  }
}

@keyframes entranceChuCuoi {
  from {
    opacity: 0;
    transform: translate3d(60px, 15px, 0) scale(0.92);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0) scale(1);
  }
}

@keyframes entranceCakeDrop {
  from {
    opacity: 0;
    transform: translateY(-25px) scale(0.8);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes entranceRabbitJump {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.75);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes entranceSlideUp {
  from {
    opacity: 0;
    transform: translateY(25px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}



/* --------------------------------------------------------------------------
   SECTION 2: INLINE REGISTRATION FORM & FESTIVAL DETAILS (SCROLL-DOWN)
   -------------------------------------------------------------------------- */
.section-register {
  position: relative;
  width: 100%;
  background: radial-gradient(ellipse at 50% 0%, #29115b 0%, #150933 45%, #09031c 100%);
  border-top: 1.5px solid rgba(255, 207, 36, 0.4);
  box-shadow: 0 -15px 45px rgba(168, 85, 247, 0.25);
  padding: 70px 20px 80px;
  z-index: 50;
}

.register-container {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

/* Section Decorative Header */
.section-header {
  text-align: center;
}

.header-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 207, 36, 0.15);
  border: 1px solid rgba(255, 207, 36, 0.4);
  color: var(--primary-gold);
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
  box-shadow: 0 4px 15px rgba(255, 207, 36, 0.2);
}

.section-title {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(22px, 5vw, 32px);
  font-weight: 900;
  background: linear-gradient(135deg, #ffffff 0%, #ffcf24 50%, #ffa800 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.25;
  margin-bottom: 8px;
}

.section-desc {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.5;
  max-width: 520px;
  margin: 0 auto;
}

/* Quick Event Highlights Grid */
.event-info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.info-card {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 207, 36, 0.25);
  border-radius: 16px;
  padding: 14px 16px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all 0.25s var(--ease-gentle);
}

.info-card:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: var(--primary-gold);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 207, 36, 0.2);
}

.info-icon {
  font-size: 26px;
  flex-shrink: 0;
}

.info-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.info-label {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.65);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.info-val {
  font-size: 13.5px;
  font-weight: 800;
  color: #fff;
  line-height: 1.3;
}

.hotline-highlight {
  color: var(--primary-gold);
  text-decoration: none;
  font-weight: 900;
  letter-spacing: 0.5px;
}

.hotline-highlight:hover {
  text-decoration: underline;
}

/* Form Flank Container with Chị Hằng & Chú Cuội */
.form-flank-container {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  margin: 0 auto;
  gap: 24px;
}

.flank-char {
  position: relative;
  flex-shrink: 0;
  z-index: 52;
  pointer-events: none;
  user-select: none;
  will-change: transform, opacity;
}

.flank-chi-hang {
  width: 215px;
  transform-origin: center bottom;
  filter: drop-shadow(0 15px 30px rgba(0, 0, 0, 0.45));
}

.flank-chu-cuoi {
  width: 205px;
  transform-origin: center bottom;
  filter: drop-shadow(0 15px 30px rgba(0, 0, 0, 0.45));
}

.flank-img {
  width: 100%;
  height: auto;
  display: block;
}

/* Form Box */
.form-wrapper {
  flex: 1;
  max-width: 580px;
  background: rgba(30, 14, 68, 0.88);
  border: 1.5px solid rgba(255, 207, 36, 0.4);
  border-radius: 24px;
  padding: 30px 26px;
  box-shadow: 
    0 25px 60px rgba(0, 0, 0, 0.75),
    0 0 50px rgba(168, 85, 247, 0.25),
    inset 0 0 0 1px rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  position: relative;
  z-index: 51;
  will-change: transform, opacity;
}

.form-card-header {
  text-align: center;
  margin-bottom: 22px;
}

.rabbit-avatar {
  font-size: 34px;
  margin-bottom: 8px;
}

.form-card-header h3 {
  font-family: 'Montserrat', sans-serif;
  font-size: 19px;
  font-weight: 900;
  color: var(--primary-gold);
  letter-spacing: 0.5px;
}

.form-card-header p {
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.75);
  margin-top: 4px;
}

.register-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-row {
  display: flex;
  gap: 14px;
}

.form-row .form-group {
  flex: 1;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 12px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.92);
}

.form-group input,
.form-group select {
  width: 100%;
  background: rgba(14, 6, 34, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 12px;
  padding: 12px 14px;
  color: #fff;
  font-size: 13.5px;
  font-family: inherit;
  outline: none;
  transition: all 0.2s;
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--primary-gold);
  background: rgba(20, 8, 48, 0.95);
  box-shadow: 0 0 14px rgba(255, 207, 36, 0.35);
}

.gift-radio-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.radio-chip {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.05);
  padding: 11px 14px;
  border-radius: 12px;
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.12);
  transition: all 0.2s var(--ease-gentle);
}

.radio-chip:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 207, 36, 0.5);
}

.radio-chip input[type="radio"] {
  display: none;
}

.radio-custom {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s;
}

.radio-chip input[type="radio"]:checked + .radio-custom {
  border-color: var(--primary-gold);
  background: var(--primary-gold);
  box-shadow: 0 0 10px rgba(255, 207, 36, 0.6);
}

.radio-text {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.88);
  transition: color 0.2s;
}

.radio-chip input[type="radio"]:checked ~ .radio-text {
  color: var(--primary-gold);
  font-weight: 800;
}

.submit-btn {
  background: linear-gradient(135deg, #ffcf24 0%, #ff9500 100%);
  color: #180632;
  border: none;
  border-radius: 14px;
  padding: 15px 20px;
  font-size: 15px;
  font-weight: 900;
  cursor: pointer;
  margin-top: 8px;
  box-shadow: 
    0 8px 25px rgba(255, 149, 0, 0.45),
    0 0 30px rgba(255, 207, 36, 0.3);
  transition: all 0.25s var(--ease-spring);
  text-align: center;
}

.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 
    0 12px 30px rgba(255, 149, 0, 0.6),
    0 0 40px rgba(255, 207, 36, 0.5);
}

.submit-btn:active {
  transform: translateY(0) scale(0.98);
}

/* Success State */
.form-success-message {
  text-align: center;
  padding: 20px 10px;
}

.success-icon {
  font-size: 42px;
  margin-bottom: 12px;
}

.form-success-message h4 {
  font-family: 'Montserrat', sans-serif;
  font-size: 20px;
  font-weight: 900;
  color: var(--primary-gold);
  margin-bottom: 6px;
}

.gift-code-badge {
  margin: 14px 0;
}

.gift-code {
  display: inline-block;
  background: rgba(255, 207, 36, 0.18);
  color: var(--primary-gold);
  padding: 8px 20px;
  border-radius: 10px;
  border: 1.5px dashed var(--primary-gold);
  font-size: 16px;
  font-weight: 900;
  letter-spacing: 1.5px;
  box-shadow: 0 0 15px rgba(255, 207, 36, 0.3);
}

.success-note {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.5;
  max-width: 440px;
  margin: 0 auto;
}

.btn-scroll-top {
  display: inline-block;
  margin-top: 18px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 207, 36, 0.4);
  color: var(--primary-gold);
  padding: 9px 20px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-scroll-top:hover {
  background: rgba(255, 207, 36, 0.2);
  transform: translateY(-2px);
}

/* Quick External Action Buttons: Google Maps & Facebook Fanpage */
.form-quick-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 207, 36, 0.25);
}

.action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 14px;
  text-decoration: none;
  font-family: 'Montserrat', sans-serif;
  transition: all 0.25s var(--ease-gentle);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.btn-map {
  background: linear-gradient(135deg, rgba(234, 67, 53, 0.18), rgba(251, 188, 4, 0.15));
  border: 1.5px solid rgba(251, 188, 4, 0.55);
  color: #fff;
}

.btn-map:hover {
  background: linear-gradient(135deg, rgba(234, 67, 53, 0.35), rgba(251, 188, 4, 0.3));
  border-color: #fbbc04;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(251, 188, 4, 0.35);
}

.btn-fanpage {
  background: linear-gradient(135deg, rgba(24, 119, 242, 0.2), rgba(168, 85, 247, 0.18));
  border: 1.5px solid rgba(24, 119, 242, 0.6);
  color: #fff;
}

.btn-fanpage:hover {
  background: linear-gradient(135deg, rgba(24, 119, 242, 0.38), rgba(168, 85, 247, 0.3));
  border-color: #1877f2;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(24, 119, 242, 0.35);
}

.action-btn .btn-icon {
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.action-btn .fb-svg-icon {
  fill: #1877f2;
  filter: drop-shadow(0 0 8px rgba(24, 119, 242, 0.8));
}

.action-btn .map-svg-icon {
  fill: #ea4335;
  filter: drop-shadow(0 0 8px rgba(234, 67, 53, 0.8));
}

.action-btn-text {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.action-btn-text .btn-subtitle {
  font-size: 9.5px;
  color: rgba(255, 255, 255, 0.7);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.action-btn-text .btn-title {
  font-size: 13.5px;
  font-weight: 800;
  color: #fff;
  line-height: 1.25;
}

/* Footer Signature */
.register-footer {
  text-align: center;
  padding-top: 10px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.copyright-text {
  font-size: 12px;
  font-weight: 700;
  color: var(--primary-gold);
  letter-spacing: 0.5px;
}

.slogan-text {
  font-size: 11.5px;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 4px;
}

/* --------------------------------------------------------------------------
   GIFT TOAST NOTIFICATION
   -------------------------------------------------------------------------- */
.gift-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: rgba(26, 10, 60, 0.95);
  border: 1.5px solid var(--primary-gold);
  border-radius: 18px;
  padding: 12px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 10px 35px rgba(0, 0, 0, 0.7), 0 0 25px rgba(255, 207, 36, 0.4);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  z-index: 3000;
  opacity: 0;
  pointer-events: none;
  transition: transform 0.4s var(--ease-spring), opacity 0.4s;
  max-width: 90vw;
  width: 360px;
}

.gift-toast.active {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.gift-toast-icon {
  font-size: 26px;
}

.gift-toast-content strong {
  font-size: 13px;
  color: var(--primary-gold);
  display: block;
}

.gift-toast-content p {
  font-size: 11.5px;
  color: rgba(255, 255, 255, 0.85);
  margin-top: 2px;
}

/* ==========================================================================
   MOBILE FULLSCREEN RESPONSIVE LAYOUT (@media max-width: 768px)
   Matches flyer-mattruoc.pdf edge-to-edge on all phones
   ========================================================================== */
@media (max-width: 768px) {
  html, body {
    width: 100vw;
    min-height: 100dvh;
    overflow-x: hidden;
    overflow-y: auto;
    scroll-behavior: smooth;
    position: static;
    background: #09031c;
  }

  .page-container {
    padding: 0;
    margin: 0;
    width: 100vw;
    height: 100dvh;
    min-height: 100dvh;
    max-width: 100vw;
    max-height: 100dvh;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
  }

  .top-controls {
    top: max(8px, env(safe-area-inset-top));
    right: 8px;
    gap: 6px;
  }

  .ctrl-btn {
    padding: 0;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(20, 8, 48, 0.88);
    border: 1px solid rgba(255, 207, 36, 0.6);
  }

  .ctrl-btn .btn-text {
    display: none;
  }

  .ctrl-icon {
    width: 15px;
    height: 15px;
  }

  .brand-badge-pill {
    display: none;
  }

  .festival-stage {
    width: 100vw;
    height: 100dvh;
    max-width: 100vw;
    max-height: 100dvh;
    aspect-ratio: unset;
    border-radius: 0;
    box-shadow: none;
    border: none;
    position: relative;
    overflow: hidden;
  }

  /* Mobile Proportional Placement matching flyer-mattruoc.pdf */
  .layer-logo {
    top: max(14px, env(safe-area-inset-top));
    left: 4%;
    width: 13%;
  }

  .layer-brand-title {
    top: max(18px, env(safe-area-inset-top));
    left: 19%;
    width: 63%;
  }

  .layer-trang {
    top: 3.5%;
    right: 2%;
    width: 35%;
  }

  .layer-thu-moi {
    top: 6.8%;
    left: 14%;
    width: 32%;
  }

  /* ĐÊM HỘI TRĂNG RẰM: Căn chính giữa, nâng nhẹ lên để tạo không gian thoáng bên dưới */
  .layer-dem-hoi {
    top: 8.2%;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 410px;
    z-index: 9;
  }

  /* TAGLINE RIBBON: Đẩy xuống rõ rệt dưới chữ "Trăng Rằm", không bị đè chữ */
  .layer-ribbon-tagline {
    top: 29.2%;
    left: 50%;
    transform: translateX(-50%);
    width: 78%;
    max-width: 340px;
    z-index: 10;
  }

  /* Con đường: Phóng to ra để sao cho dưới chân chú Cuội và không lộ các góc (chỉ lộ đường cong) */
  .layer-cung-duong {
    top: 35.0%;
    left: -22%;
    width: 210%;
    height: auto;
    z-index: 11;
    -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1) 75%, rgba(0, 0, 0, 0) 94%);
    mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1) 75%, rgba(0, 0, 0, 0) 94%);
  }

  /* Central Invitation Card: Đẩy xuống tương ứng để cân đối hoàn hảo với ribbon */
  .layer-invitation-card {
    top: 36.8%;
    left: 50%;
    transform: translateX(-50%);
    width: 48%;
    max-width: 245px;
    z-index: 26;
  }

  /* Chị Hằng: Vừa vặn bên trái, không chạm chữ thiệp mời, được mây che nhẹ gấu váy */
  .layer-chi-hang {
    top: 46.5%;
    left: -18%;
    width: 54%;
    max-width: 280px;
    z-index: 30;
  }

  /* Chú Cuội: Chân đặt ngay trên mặt đường cong, được mây che nhẹ và cuộn sau lưng */
  .layer-chu-cuoi {
    top: 49.0%;
    right: -8%;
    width: 51%;
    max-width: 270px;
    z-index: 30;
  }

  /* Hide grey atmospheric clouds on mobile so background is clean and deep like flyer */
  .cloud-m1,
  .cloud-m5,
  .cloud-m6 {
    display: none;
  }

  /* Mooncakes along celestial road - arranged to populate the center space */
  .cake-3 {
    top: 66.0%;
    left: 38.0%;
    width: 7.5%;
    z-index: 33;
  }

  .cake-2 {
    top: 62.5%;
    left: 54.0%;
    width: 12.5%;
    z-index: 33;
  }

  .cake-1 {
    top: 72.5%;
    left: 58.0%;
    width: 22.0%;
    z-index: 39;
  }

  /* Thỏ Ngọc sitting in the middle space on golden cloud */
  .layer-tho-ngoc {
    top: 73.0%;
    left: 21.0%;
    width: 21.0%;
    z-index: 40;
  }

  /* Các đám mây vàng: Phóng to lên và bố trí che nhẹ Chị Hằng và Chú Cuội khớp mẫu flyer */
  .stage-cloud-glow {
    height: 38%;
    z-index: 32;
  }

  .cloud-m2 {
    bottom: 4%;
    left: -28%;
    width: 175%;
    z-index: 34;
    -webkit-mask-image: linear-gradient(to bottom, #000 0%, #000 55%, rgba(0, 0, 0, 0.5) 75%, transparent 92%);
    mask-image: linear-gradient(to bottom, #000 0%, #000 55%, rgba(0, 0, 0, 0.5) 75%, transparent 92%);
  }

  .cloud-m4 {
    bottom: 2%;
    right: -18%;
    width: 185%;
    z-index: 35;
    filter: drop-shadow(0 0 25px rgba(255, 200, 30, 0.45));
    -webkit-mask-image: linear-gradient(to bottom, #000 0%, #000 60%, rgba(0, 0, 0, 0.5) 80%, transparent 95%);
    mask-image: linear-gradient(to bottom, #000 0%, #000 60%, rgba(0, 0, 0, 0.5) 80%, transparent 95%);
  }

  .cloud-m3 {
    bottom: 0%;
    left: -35%;
    width: 170%;
    z-index: 36;
    -webkit-mask-image: linear-gradient(to bottom, #000 0%, #000 50%, rgba(0, 0, 0, 0.4) 75%, transparent 92%);
    mask-image: linear-gradient(to bottom, #000 0%, #000 50%, rgba(0, 0, 0, 0.4) 75%, transparent 92%);
  }

  .cloud-m4-base {
    bottom: -4%;
    left: -15%;
    width: 175%;
    z-index: 37;
    filter: drop-shadow(0 0 20px rgba(255, 200, 30, 0.4));
    -webkit-mask-image: linear-gradient(to bottom, #000 0%, #000 70%, transparent 98%);
    mask-image: linear-gradient(to bottom, #000 0%, #000 70%, transparent 98%);
  }

  .cloud-dream-blur {
    height: 24%;
    z-index: 38;
  }

  .layer-frame-strip {
    bottom: 0;
    left: 0;
    width: 100%;
    z-index: 20;
    -webkit-mask-image: linear-gradient(to top, rgba(0, 0, 0, 1) 60%, rgba(0, 0, 0, 0) 100%);
    mask-image: linear-gradient(to top, rgba(0, 0, 0, 1) 60%, rgba(0, 0, 0, 0) 100%);
  }

  .layer-dia-chi {
    bottom: max(6px, env(safe-area-inset-bottom));
    left: 0;
    width: 100%;
    z-index: 42;
  }

  .char-bubble {
    display: none; /* Hide hover speech bubbles on touch devices to avoid layout interference */
  }

  /* Mobile adjustments for Registration Section */
  .section-register {
    padding: 45px 14px 65px;
  }

  .form-flank-container {
    display: block;
    position: relative;
    width: 100%;
    margin-top: 24px;
  }

  .flank-char {
    position: absolute;
    top: -44px;
    z-index: 56;
    pointer-events: none;
  }

  .flank-chi-hang {
    left: 2px;
    width: 80px;
    filter: drop-shadow(0 6px 14px rgba(0, 0, 0, 0.4));
  }

  .flank-chu-cuoi {
    right: 2px;
    width: 76px;
    filter: drop-shadow(0 6px 14px rgba(0, 0, 0, 0.4));
  }

  .form-wrapper {
    max-width: 100%;
    padding: 22px 16px;
    border-radius: 20px;
  }

  .form-row {
    flex-direction: column;
    gap: 12px;
  }

  .submit-btn {
    font-size: 13.5px;
    padding: 13px 16px;
  }

  .form-quick-actions {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-top: 18px;
    padding-top: 16px;
  }

  .action-btn {
    padding: 10px 8px;
    gap: 7px;
    border-radius: 12px;
  }

  .action-btn-text .btn-subtitle {
    font-size: 8.5px;
  }

  .action-btn-text .btn-title {
    font-size: 11.5px;
  }

  .action-btn .btn-icon {
    font-size: 18px;
  }

  .action-btn .fb-svg-icon,
  .action-btn .map-svg-icon {
    width: 18px;
    height: 18px;
  }
}

/* Tablet Adjustments for Flanking Characters */
@media (min-width: 769px) and (max-width: 1024px) {
  .flank-chi-hang {
    width: 160px;
  }
  .flank-chu-cuoi {
    width: 150px;
  }
  .form-wrapper {
    max-width: 480px;
  }
}

/* Developer & Instant Preview Helper */
body.skip-animations *,
body.skip-animations *::before,
body.skip-animations *::after {
  animation-delay: 0s !important;
  animation-duration: 0.001s !important;
}