/* ==========================================================================
   THÁI HỒNG LÂM - ENHANCED CYBER & BLINK-BLINK STYLES
   Colors: Neon Cyan (#00f5d4), Royal Purple (#8b5cf6), Deep Pink/Magenta (#ff2a85)
   Features:
    - Glassmorphism transparent borders
    - 3D Interactive Gundam Showcase with cyber pedestals
    - Vinyl Music Player replica (Matching Image 1)
    - Spotlight Info Card replica (Matching Image 2)
    - 6-Photo Polaroid Album with Lightbox Callout Box
    - Contact Form linked to himngminhlalam@gmail.com (No Google Maps)
    - Animated badminton icon & blink-blink sparkles
    - Mechanical switch sound effects support
   ========================================================================== */

:root {
  --neon-cyan: #00f5d4;
  --neon-blue: #38bdf8;
  --royal-purple: #8b5cf6;
  --deep-purple: #7928ca;
  --hot-pink: #ff2a85;
  --deep-pink: #ec4899;

  --grad-cyber: linear-gradient(135deg, #00f5d4 0%, #8b5cf6 50%, #ff2a85 100%);
  --grad-purple-pink: linear-gradient(135deg, #8b5cf6 0%, #ff2a85 100%);
  --grad-cyan-purple: linear-gradient(135deg, #00f5d4 0%, #8b5cf6 100%);
  --grad-pink-cyan: linear-gradient(135deg, #ff2a85 0%, #00f5d4 100%);

  --glass-card: rgba(13, 22, 42, 0.78);
  --glass-border: rgba(255, 255, 255, 0.14);
  --glass-border-glow: rgba(0, 245, 212, 0.35);
  --glass-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), 0 0 25px rgba(139, 92, 246, 0.15);
}

body:not(.dark) {
  --glass-card: rgba(255, 255, 255, 0.88);
  --glass-border: rgba(139, 92, 246, 0.22);
  --glass-border-glow: rgba(255, 42, 133, 0.3);
  --glass-shadow: 0 12px 35px rgba(139, 92, 246, 0.12), 0 0 20px rgba(0, 245, 212, 0.15);
}

/* ==========================================================================
   CANVAS & FLOATING GLOWING ORBS
   ========================================================================== */
#cyber-bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.85;
}

.floating-orbs-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.floating-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
  animation: floatOrb 18s ease-in-out infinite alternate;
}

.orb-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, #00f5d4 0%, rgba(0, 245, 212, 0) 70%);
  top: -100px;
  left: -100px;
  animation-duration: 22s;
}

.orb-2 {
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, #8b5cf6 0%, rgba(139, 92, 246, 0) 70%);
  top: 40%;
  right: -120px;
  animation-duration: 26s;
  animation-delay: -5s;
}

.orb-3 {
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, #ff2a85 0%, rgba(255, 42, 133, 0) 70%);
  bottom: 5%;
  left: 20%;
  animation-duration: 20s;
  animation-delay: -10s;
}

@keyframes floatOrb {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(60px, 80px) scale(1.15); }
  100% { transform: translate(-50px, -60px) scale(0.9); }
}

/* ==========================================================================
   HEADER CONTROLS & SWITCH SOUND SUPPORT
   ========================================================================== */
.header-controls {
  display: flex;
  align-items: center;
  gap: 1.1rem;
}

.language-flag-btn {
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none !important;
  outline: none;
  background: transparent;
  user-select: none;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), filter 0.25s ease;
}

.language-flag-btn:hover {
  transform: scale(1.15);
  filter: drop-shadow(0 0 10px var(--neon-cyan));
}

.language-flag-btn:active {
  transform: scale(0.9);
}

.flag-icon-img {
  width: 28px;
  height: 19px;
  border-radius: 5px;
  display: block;
  object-fit: cover;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.theme-toggle-btn {
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none !important;
  outline: none;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 1.15rem;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  user-select: none;
}

body:not(.dark) .theme-toggle-btn {
  background: rgba(139, 92, 246, 0.12);
  color: var(--royal-purple);
}

.theme-toggle-btn:hover {
  transform: rotate(25deg) scale(1.15);
  box-shadow: 0 0 16px var(--royal-purple);
  color: var(--hot-pink);
}

.theme-toggle-btn:active {
  transform: scale(0.9);
}

/* ==========================================================================
   SPOTLIGHT BIO CARD (CHUẨN 100% ẢNH 2 & NÂNG CẤP BLINK BLINK)
   ========================================================================== */
.user-highlight-card {
  max-width: 820px;
  margin: 0 auto 2.5rem auto;
  background: var(--glass-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 1.5rem;
  padding: 1.85rem 2.2rem;
  box-shadow: var(--glass-shadow);
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease, border-color 0.4s ease;
}

.user-highlight-card::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(0, 245, 212, 0.08) 0%, rgba(139, 92, 246, 0.06) 35%, transparent 65%);
  animation: rotateCardAura 12s linear infinite;
  pointer-events: none;
}

@keyframes rotateCardAura {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.user-highlight-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 245, 212, 0.5);
  box-shadow: 0 16px 50px rgba(0, 0, 0, 0.6), 0 0 35px rgba(255, 42, 133, 0.25);
}

.highlight-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--neon-cyan);
  text-transform: uppercase;
  margin-bottom: 1.25rem;
  background: rgba(0, 245, 212, 0.12);
  padding: 5px 18px;
  border-radius: 999px;
  border: 1px solid rgba(0, 245, 212, 0.4);
  box-shadow: 0 0 15px rgba(0, 245, 212, 0.25);
  animation: badgeBlink 3s ease-in-out infinite alternate;
  letter-spacing: 0.5px;
}

@keyframes badgeBlink {
  0% { transform: scale(1); box-shadow: 0 0 10px rgba(0, 245, 212, 0.2); }
  100% { transform: scale(1.04); box-shadow: 0 0 22px rgba(255, 42, 133, 0.5), 0 0 12px rgba(0, 245, 212, 0.4); }
}

.highlight-badge i {
  animation: spinSparkle 4s linear infinite;
  color: #ffde59;
}

@keyframes spinSparkle {
  0% { transform: rotate(0deg) scale(1); }
  50% { transform: rotate(180deg) scale(1.25); }
  100% { transform: rotate(360deg) scale(1); }
}

.highlight-info-grid {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.9rem;
  margin-bottom: 1.35rem;
  position: relative;
  z-index: 1;
}

.info-pill {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 0.5rem 1.15rem;
  border-radius: 999px;
  font-size: 0.86rem;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--title-color);
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.15);
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: default;
  backdrop-filter: blur(10px);
}

.info-pill:hover {
  transform: translateY(-4px) scale(1.05);
  border-color: var(--neon-cyan);
  background: rgba(0, 245, 212, 0.12);
  box-shadow: 0 8px 24px rgba(0, 245, 212, 0.35);
}

.info-pill i {
  font-size: 1rem;
  transition: transform 0.3s ease, filter 0.3s ease;
}

.info-pill:hover i {
  transform: scale(1.3) rotate(12deg);
  filter: drop-shadow(0 0 8px currentColor);
}

/* Icon Cầu Lông Đổ Bóng 3D Đặc Sắc */
.badminton-icon-3d {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #00f5d4;
  filter: drop-shadow(0 2px 6px rgba(0, 245, 212, 0.7));
  animation: shuttleFloat 2.5s ease-in-out infinite alternate;
}

@keyframes shuttleFloat {
  0% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-3px) rotate(8deg); }
  100% { transform: translateY(0) rotate(0deg); }
}

.highlight-quote-phrase {
  font-size: 1.12rem;
  font-weight: 600;
  font-style: italic;
  margin-top: 1rem;
  line-height: 1.65;
  position: relative;
  z-index: 1;
}

.glow-text {
  background: linear-gradient(90deg, #00f5d4 0%, #38bdf8 25%, #8b5cf6 50%, #ff2a85 75%, #00f5d4 100%);
  background-size: 250% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 14px rgba(0, 245, 212, 0.5));
  animation: shimmerQuote 5s linear infinite;
}

@keyframes shimmerQuote {
  0% { background-position: 0% center; }
  100% { background-position: 250% center; }
}

/* ==========================================================================
   2 DỰ ÁN CÂN ĐỐI (CHUẨN ẢNH 4)
   ========================================================================== */
.projects-two-cols {
  grid-template-columns: repeat(2, 1fr) !important;
  max-width: 860px;
  margin: 0 auto;
  gap: 1.75rem;
}

.projects__card {
  border-radius: 1.25rem !important;
  overflow: hidden;
  border: 1px solid var(--glass-border) !important;
  background: var(--glass-card) !important;
  box-shadow: var(--glass-shadow);
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease !important;
}

.projects__card:hover {
  transform: translateY(-8px) scale(1.02) !important;
  border-color: var(--neon-cyan) !important;
  box-shadow: 0 16px 45px rgba(0, 245, 212, 0.25) !important;
}

/* ==========================================================================
   ALBUM 6 ẢNH XÒE QUẠT & LIGHTBOX POPUP CHUẨN ẢNH 2
   ========================================================================== */
.blog__carousel_six {
  margin-top: 40px;
  text-align: center;
}

.carousel__wrapper_six {
  display: grid;
  grid-template-columns: 235px 235px 300px;
  justify-content: center;
  row-gap: 2.2rem;
  position: relative;
  padding: 30px 0 20px;
}

.carousel__item_six {
  width: 300px;
  height: 190px;
  border-radius: 1.5rem;
  border: 4px dashed var(--color-toolbar2);
  box-shadow: 0 5px 15px var(--box-shadow);
  overflow: hidden;
  position: relative;
  cursor: pointer;
  transition: transform 0.3s ease, z-index 0.3s ease;
}

/* Xếp chồng 3 ảnh / hàng, nghiêng giống mẫu */
.carousel__item_six:nth-child(3n+1) { transform: rotate(-15deg); }
.carousel__item_six:nth-child(3n+2) { transform: rotate(5deg); z-index: 2; }
.carousel__item_six:nth-child(3n+3) { transform: rotate(10deg); z-index: 3; }

.carousel__item_six:hover {
  transform: rotate(0deg) scale(1.16) !important;
  z-index: 10 !important;
}

.carousel__item_six img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.carousel__item_six .popup__title,
.carousel__item_six .popup__time,
.carousel__item_six .popup__caption {
  display: none;
}

/* Lightbox Modal Popup Chuẩn Ảnh 2 */
.popup__overlay_custom {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(4, 9, 20, 0.88);
  backdrop-filter: blur(12px);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
}

.popup__overlay_custom.active {
  opacity: 1;
  pointer-events: auto;
}

.popup__content_photo_modal {
  background: var(--glass-card);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  max-width: 580px;
  width: 100%;
  padding: 1.6rem;
  position: relative;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.65), 0 0 30px rgba(139, 92, 246, 0.3);
  animation: modalPopIn 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.popup__close_photo {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 34px;
  height: 34px;
  background: rgba(0, 0, 0, 0.8);
  border: 2px solid #fff;
  border-radius: 50%;
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  transition: transform 0.25s ease, background 0.25s ease;
  z-index: 10;
}

.popup__close_photo:hover {
  background: var(--hot-pink);
  transform: rotate(90deg) scale(1.15);
}

.popup__image_photo {
  width: 100%;
  max-height: 48vh;
  object-fit: cover;
  border-radius: 16px;
  margin-bottom: 1.25rem;
  display: block;
}

.popup__title_photo {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--title-color);
  margin-bottom: 0.35rem;
}

.popup__time_photo {
  display: inline-block;
  background: rgba(0, 245, 212, 0.15);
  color: var(--neon-cyan);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 3px 12px;
  border-radius: 6px;
  margin-bottom: 1rem;
}

.popup__caption_callout {
  background: rgba(56, 189, 248, 0.12);
  border-radius: 12px;
  padding: 1.1rem 1.35rem;
  border-left: 4px solid var(--neon-cyan);
}

body:not(.dark) .popup__caption_callout {
  background: #eaf4fc;
  border-left: 4px solid #00b4d8;
}

.popup__caption_text {
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--text-color);
  font-style: italic;
  margin: 0;
}

/* ==========================================================================
   GUNDAM & MECHA 3D COLLECTION SHOWCASE (TRÊN MỤC ÂM NHẠC)
   ========================================================================== */
.gundam-section {
  padding: 5rem 0 3rem 0;
  position: relative;
  z-index: 1;
}

.gundam__header {
  text-align: center;
  margin-bottom: 3rem;
}

.gundam__title {
  font-size: var(--h2-font-size);
  color: var(--title-color);
  margin-bottom: 0.6rem;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}

.gundam__subtitle {
  font-size: var(--small-font-size);
  color: var(--text-color);
  max-width: 620px;
  margin: 0 auto;
}

.gundam-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  max-width: 1040px;
  margin: 0 auto;
  perspective: 1200px;
}

.gundam-card {
  background: var(--glass-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: 1.5rem;
  padding: 2rem 1.5rem 1.75rem 1.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--glass-shadow);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease, border-color 0.4s ease;
  transform-style: preserve-3d;
}

.gundam-card:hover {
  transform: translateY(-12px) rotateX(4deg) scale(1.03);
  border-color: var(--neon-cyan);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 30px rgba(0, 245, 212, 0.3);
}

/* Badge trạng thái lắp ráp */
.gundam-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 999px;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
  letter-spacing: 0.5px;
}

.badge-snaa {
  background: rgba(0, 245, 212, 0.15);
  color: var(--neon-cyan);
  border: 1px solid rgba(0, 245, 212, 0.4);
}

.badge-aobing {
  background: rgba(56, 189, 248, 0.15);
  color: var(--neon-blue);
  border: 1px solid rgba(56, 189, 248, 0.4);
}

.badge-nezha {
  background: rgba(255, 42, 133, 0.15);
  color: var(--hot-pink);
  border: 1px solid rgba(255, 42, 133, 0.4);
}

/* Khung ảnh 3D Model Showcase */
.gundam-model-box {
  position: relative;
  width: 100%;
  height: 290px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.gundam-pedestal {
  position: absolute;
  bottom: 0px;
  width: 160px;
  height: 26px;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(0, 245, 212, 0.4) 0%, rgba(139, 92, 246, 0.15) 50%, transparent 80%);
  border: 1.5px solid rgba(0, 245, 212, 0.5);
  box-shadow: 0 0 20px rgba(0, 245, 212, 0.6);
  animation: pedestalPulse 3s ease-in-out infinite alternate;
}

@keyframes pedestalPulse {
  0% { transform: scale(0.95); opacity: 0.6; }
  100% { transform: scale(1.1); opacity: 1; filter: drop-shadow(0 0 10px #ff2a85); }
}

.gundam-img {
  max-width: 90%;
  max-height: 270px;
  object-fit: contain;
  z-index: 2;
  filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.6));
  transition: transform 0.45s cubic-bezier(0.16, 1, 0.3, 1), filter 0.45s ease;
}

.gundam-card:hover .gundam-img {
  transform: translateY(-8px) scale(1.1);
  filter: drop-shadow(0 15px 30px rgba(0, 245, 212, 0.5));
}

.gundam-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--title-color);
  margin-bottom: 0.4rem;
}

.gundam-desc {
  font-size: 0.8rem;
  color: var(--text-color);
  line-height: 1.55;
  margin-bottom: 1.25rem;
}

.gundam-specs {
  display: flex;
  justify-content: center;
  gap: 0.8rem;
  margin-bottom: 1.25rem;
}

.spec-pill {
  font-size: 0.72rem;
  padding: 3px 10px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-color);
}

.gundam-btn-view {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.55rem 1.25rem;
  border-radius: 999px;
  background: var(--grad-purple-pink);
  color: #fff;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(255, 42, 133, 0.35);
  transition: all 0.3s ease;
}

.gundam-btn-view:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 6px 20px rgba(255, 42, 133, 0.6);
  color: #fff;
}

/* ==========================================================================
   MUSIC PLAYER (CHUẨN 100% ẢNH 1 & NÂNG CẤP)
   ========================================================================== */
.music-section {
  padding: 4rem 0 5rem 0;
  position: relative;
  z-index: 1;
}

.music__header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.music__title {
  font-size: var(--h2-font-size);
  color: var(--title-color);
  margin-bottom: 0.5rem;
}

.music__subtitle {
  font-size: var(--small-font-size);
  color: var(--text-color);
  max-width: 580px;
  margin: 0 auto;
}

.music-player-container-img1 {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 2rem;
  max-width: 880px;
  margin: 0 auto;
}

/* Cột Trái: Đĩa Than Vinyl */
.vinyl-card-box {
  background: var(--glass-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: 1.5rem;
  padding: 2.2rem 1.8rem;
  text-align: center;
  box-shadow: var(--glass-shadow);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.vinyl-disc-wrap {
  width: 175px;
  height: 175px;
  border-radius: 50%;
  background: radial-gradient(circle, #2b2b2b 0%, #151515 50%, #080808 100%);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.7), 0 0 15px rgba(0, 245, 212, 0.2);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  border: 2px solid rgba(255, 255, 255, 0.15);
}

.vinyl-disc-wrap.playing {
  animation: spinVinylDisc 6s linear infinite;
}

@keyframes spinVinylDisc {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.vinyl-grooves-ring {
  position: absolute;
  width: 90%;
  height: 90%;
  border-radius: 50%;
  border: 1px dashed rgba(255, 255, 255, 0.18);
}

.vinyl-center-art {
  width: 68px;
  height: 68px;
  border-radius: 50%;
  overflow: hidden;
  border: 2.5px solid #fff;
  z-index: 2;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.6);
}

.vinyl-center-art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.song-info-meta h3 {
  font-size: 1.25rem;
  color: var(--title-color);
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.song-info-meta p {
  font-size: 0.85rem;
  color: var(--neon-cyan);
  font-weight: 600;
  margin-bottom: 1.35rem;
}

/* Seekbar */
.music-seek-bar-wrap {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.75rem;
  color: var(--text-color);
  margin-bottom: 1.35rem;
}

.music-progress-track {
  flex-grow: 1;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  position: relative;
  cursor: pointer;
}

.music-progress-fill {
  height: 100%;
  background: var(--grad-cyber);
  width: 0%;
  border-radius: 999px;
  transition: width 0.15s linear;
  box-shadow: 0 0 10px var(--neon-cyan);
}

/* Nút điều khiển */
.music-playback-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.4rem;
}

.btn-ctrl {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--glass-border);
  color: var(--title-color);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all 0.25s ease;
}

.btn-ctrl:hover {
  background: var(--neon-cyan);
  color: #030c1b;
  transform: scale(1.12);
  box-shadow: 0 0 15px var(--neon-cyan);
}

.btn-ctrl.btn-play-pause {
  width: 52px;
  height: 52px;
  background: var(--neon-blue);
  color: #fff;
  font-size: 1.3rem;
  box-shadow: 0 4px 18px rgba(56, 189, 248, 0.5);
}

.btn-ctrl.btn-play-pause:hover {
  transform: scale(1.18);
  box-shadow: 0 6px 25px rgba(56, 189, 248, 0.8);
  background: var(--grad-cyber);
}

/* Cột Phải: Danh Sách 5 Bài Hát Chuẩn Ảnh 1 */
.playlist-card-box {
  background: var(--glass-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: 1.5rem;
  padding: 1.6rem;
  box-shadow: var(--glass-shadow);
  display: flex;
  flex-direction: column;
}

.playlist-title-header {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--title-color);
  margin-bottom: 1.15rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--glass-border);
}

.playlist-track-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.track-item-card {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.65rem 0.95rem;
  border-radius: 0.85rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.25s ease;
}

.track-item-card:hover {
  background: rgba(0, 245, 212, 0.08);
  border-color: rgba(0, 245, 212, 0.3);
}

/* Bài đang phát đóng khung phát sáng chuẩn Ảnh 1 */
.track-item-card.active {
  background: rgba(56, 189, 248, 0.15) !important;
  border: 1.5px solid var(--neon-blue) !important;
  box-shadow: 0 0 16px rgba(56, 189, 248, 0.35) !important;
}

.track-num {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-color);
  width: 20px;
}

.track-thumb-img {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  object-fit: cover;
}

.track-info-texts {
  flex-grow: 1;
}

.track-name-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--title-color);
  margin-bottom: 2px;
}

.track-artist-sub {
  font-size: 0.75rem;
  color: var(--text-color);
}

.track-time-dur {
  font-size: 0.78rem;
  color: var(--text-color);
}

.sound-bars-wave {
  display: none;
  align-items: flex-end;
  gap: 2px;
  height: 14px;
}

.track-item-card.active .sound-bars-wave {
  display: flex;
}

.s-bar {
  width: 3px;
  height: 100%;
  background: var(--neon-blue);
  border-radius: 2px;
  animation: barEqualizer 0.8s ease-in-out infinite alternate;
}

.s-bar:nth-child(2) { animation-delay: 0.25s; height: 60%; }
.s-bar:nth-child(3) { animation-delay: 0.5s; height: 85%; }

@keyframes barEqualizer {
  from { height: 20%; }
  to { height: 100%; }
}

/* ==========================================================================
   CONTACT FORM DƯỚI ÂM NHẠC (BỎ GOOGLE MAPS)
   ========================================================================== */
.contact-clean-box {
  max-width: 650px;
  margin: 0 auto;
  background: var(--glass-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 1.5rem;
  padding: 2.2rem;
  box-shadow: var(--glass-shadow);
}

.contact-clean-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group-field {
  position: relative;
}

.form-group-field i {
  position: absolute;
  top: 50%;
  left: 1.1rem;
  transform: translateY(-50%);
  color: var(--neon-cyan);
  font-size: 1rem;
}

.form-group-field.textarea-group i {
  top: 1.25rem;
  transform: none;
}

.form-input-clean {
  width: 100%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 0.85rem 1.1rem 0.85rem 2.85rem;
  color: var(--title-color);
  font-family: 'Poppins', sans-serif;
  font-size: 0.9rem;
  transition: all 0.3s ease;
  outline: none;
}

.form-input-clean:focus {
  border-color: var(--neon-cyan);
  background: rgba(0, 245, 212, 0.05);
  box-shadow: 0 0 15px rgba(0, 245, 212, 0.25);
}

textarea.form-input-clean {
  resize: vertical;
  min-height: 120px;
}

.btn-send-mail {
  background: var(--grad-cyber);
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: 0.85rem 2rem;
  font-size: 0.95rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  cursor: pointer;
  box-shadow: 0 4px 18px rgba(0, 245, 212, 0.4);
  transition: all 0.35s ease;
}

.btn-send-mail:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 8px 25px rgba(255, 42, 133, 0.5);
}

/* ==========================================================================
   RESPONSIVE DESIGN (100% RESPONSIVE CHO MOBILE & TABLET)
   ========================================================================== */
@media screen and (max-width: 968px) {
  .gundam-grid {
    grid-template-columns: 1fr;
    max-width: 460px;
  }

  .music-player-container-img1 {
    grid-template-columns: 1fr;
  }

  .projects-two-cols {
    grid-template-columns: 1fr !important;
  }
}

@media screen and (max-width: 768px) {
  .user-highlight-card {
    padding: 1.4rem 1.1rem;
    margin: 0 0.5rem 2rem 0.5rem;
  }

  .highlight-info-grid {
    gap: 0.6rem;
  }

  .info-pill {
    font-size: 0.78rem;
    padding: 0.4rem 0.85rem;
  }

  .highlight-quote-phrase {
    font-size: 0.98rem;
  }


  .contact-clean-box {
    padding: 1.5rem 1.1rem;
  }
}

/* ==========================================================================
   PRELOADER DISMISS (ĐẢM BẢO KHÔNG BAO GIỜ BỊ KẸT MÀN HÌNH LOADING)
   ========================================================================== */
.preloader {
  transition: opacity 0.4s ease, visibility 0.4s ease !important;
}

.preloader.hide {
  opacity: 0 !important;
  visibility: hidden !important;
  pointer-events: none !important;
  display: none !important;
  z-index: -9999 !important;
}

/* ==========================================================================
   ABOUT ME 4 BOXES - 2 COLUMNS REPLICA (CHUẨN 100% ẢNH 1)
   ========================================================================== */
.about__box_area {
  display: grid !important;
  grid-template-columns: repeat(2, 1fr) !important;
  max-width: 900px;
  margin: 0 auto;
  gap: 2rem;
}

@media screen and (max-width: 768px) {
  .about__box_area {
    grid-template-columns: 1fr !important;
  }
}

.about__box {
  width: 100%;
  background: var(--glass-card, rgba(13, 22, 42, 0.78)) !important;
  border: 1px solid var(--glass-border, rgba(255, 255, 255, 0.12)) !important;
  border-radius: 1.25rem !important;
  padding: 2.3rem !important;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45) !important;
  transition: all 0.35s ease !important;
  box-sizing: border-box;
}

.about__box:hover {
  transform: translateY(-5px);
  border-color: rgba(0, 245, 212, 0.4) !important;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6), 0 0 25px rgba(0, 245, 212, 0.2) !important;
}

.about__box .icon img {
  width: 50px;
  height: 50px;
  object-fit: contain;
  margin-bottom: 20px;
  display: block !important;
  opacity: 1 !important;
  visibility: visible !important;
}

.about__box h3 {
  font-size: 1.15rem;
  margin-bottom: 1rem;
  color: var(--title-color, #fff);
  font-weight: 600;
}

.about__box p {
  text-align: justify;
  line-height: 1.7;
  font-size: 0.9rem;
  color: var(--text-color, #d1d5db);
  margin-bottom: 1rem;
}

.about__box ul {
  list-style: disc;
  padding-left: 1.2rem;
  margin-bottom: 1rem;
}

.about__box li {
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--text-color, #d1d5db);
  margin-bottom: 0.5rem;
}

/* ==========================================================================
   RESUME: giữ nguyên bố cục/timeline/huy hiệu ngày như uh.zip (style.css)
   Chỉ làm khung kính trong suốt đậm hơn một chút để thấy rõ chữ
   ========================================================================== */
body.dark .resume__area {
  background: rgba(13, 22, 42, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.16);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
}

body:not(.dark) .resume__area {
  background: rgba(248, 250, 252, 0.9);
  border: 1px solid rgba(139, 92, 246, 0.25);
}

/* ==========================================================================
   PROJECT TAGS BORDER TRONG SUỐT (CHUẨN 100% ẢNH 4)
   ========================================================================== */
.projects__tags {
  position: absolute;
  bottom: 1.5rem;
  right: 1.5rem;
  display: flex;
  gap: 0.5rem;
  opacity: 1 !important;
  transform: translateY(0) !important;
  z-index: 5;
}

.projects__tag {
  padding: 0.25rem 0.85rem !important;
  border-radius: 9999px !important;
  font-size: 0.75rem !important;
  font-weight: 500 !important;
  white-space: nowrap !important;
  backdrop-filter: blur(8px) !important;
  -webkit-backdrop-filter: blur(8px) !important;
  border: 1px solid rgba(255, 255, 255, 0.35) !important;
  background: rgba(255, 255, 255, 0.08) !important;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2) !important;
  transition: all 0.25s ease !important;
}

.projects__tag--blue {
  background-color: rgba(59, 130, 246, 0.25) !important;
  color: #dbeafe !important;
  border: 1px solid rgba(147, 197, 253, 0.6) !important;
}

.projects__tag--green {
  background-color: rgba(34, 197, 94, 0.25) !important;
  color: #d1fae5 !important;
  border: 1px solid rgba(74, 222, 128, 0.6) !important;
}

.projects__tag--yellow {
  background-color: rgba(234, 179, 8, 0.25) !important;
  color: #fef9c3 !important;
  border: 1px solid rgba(250, 204, 21, 0.6) !important;
}

.projects__tag--purple {
  background-color: rgba(168, 85, 247, 0.25) !important;
  color: #f3e8ff !important;
  border: 1px solid rgba(216, 180, 254, 0.6) !important;
}

.projects__tag:hover {
  transform: translateY(-2px) scale(1.06);
  box-shadow: 0 4px 15px rgba(0, 245, 212, 0.4) !important;
}

/* ==========================================================================
   NAV DOCK 7 ITEMS (CHUẨN ẢNH 2 & ẢNH 5)
   ========================================================================== */
.nav__menu {
  width: 350px !important;
}

.nav__menu:hover {
  width: 380px !important;
}

.nav__link {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--text-color);
  font-size: 1rem;
  transition: all 0.3s ease;
}

.nav__link:hover,
.nav__link.active-link {
  color: #fff !important;
  background: var(--first-color) !important;
  box-shadow: 0 0 15px var(--first-color) !important;
}

/* Badminton shuttlecock icon styling */
.badminton-shuttlecock-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  animation: shuttleFloat 2.5s ease-in-out infinite alternate;
}

/* ==========================================================================
   CONTACT BOX (CHUẨN 100% UH.ZIP VỚI NỀN ĐẬM THẤY RÕ CHỮ & VIỀN TRONG SUỐT)
   ========================================================================== */
.contact__box_area {
  display: flex !important;
  max-width: 610px !important;
  margin: 0 auto !important;
  width: 100% !important;
}

.contact__box {
  width: 100% !important;
  background: rgba(18, 26, 42, 0.94) !important;
  border: 1px solid rgba(255, 255, 255, 0.22) !important;
  border-radius: 1.25rem !important;
  padding: 2.3rem !important;
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.55) !important;
  transition: all 0.35s ease !important;
  box-sizing: border-box !important;
}

body:not(.dark) .contact__box {
  background: rgba(248, 250, 252, 0.96) !important;
  border: 1px solid rgba(139, 92, 246, 0.25) !important;
}

.contact__box:hover {
  transform: translateY(-5px);
  border-color: rgba(56, 189, 248, 0.5) !important;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.65), 0 0 25px rgba(56, 189, 248, 0.25) !important;
}

.contact_title {
  font-size: 1.25rem !important;
  font-weight: 700 !important;
  text-align: center !important;
  margin-bottom: 2rem !important;
  color: var(--title-color, #fff) !important;
}

#contact-form {
  position: relative !important;
  width: 100% !important;
}

#contact-form input,
#contact-form textarea {
  color: var(--title-color, #fff) !important;
  width: 100% !important;
  box-sizing: border-box !important;
  display: block !important;
  border: 1px solid rgba(255, 255, 255, 0.25) !important;
  border-radius: 10px !important;
  padding: 12px 20px !important;
  background: rgba(255, 255, 255, 0.05) !important;
  font-family: 'Poppins', sans-serif !important;
  font-size: 0.9rem !important;
  transition: all 0.3s ease !important;
  outline: none !important;
}

#contact-form input {
  height: 48px !important;
  margin-bottom: 20px !important;
}

#contact-form textarea {
  margin-bottom: 28px !important;
  resize: vertical !important;
  min-height: 120px !important;
}

#contact-form input:focus,
#contact-form textarea:focus {
  border-color: var(--first-color, #38bdf8) !important;
  background: rgba(56, 189, 248, 0.08) !important;
  box-shadow: 0 0 15px rgba(56, 189, 248, 0.25) !important;
}

#contact-form input::placeholder,
#contact-form textarea::placeholder {
  color: rgba(255, 255, 255, 0.5) !important;
}

body:not(.dark) #contact-form input,
body:not(.dark) #contact-form textarea {
  background: rgba(0, 0, 0, 0.03) !important;
  border: 1px solid rgba(0, 0, 0, 0.15) !important;
  color: #1e293b !important;
}

body:not(.dark) #contact-form input::placeholder,
body:not(.dark) #contact-form textarea::placeholder {
  color: rgba(0, 0, 0, 0.45) !important;
}

.see__more {
  border: none !important;
  display: inline-flex !important;
  align-items: center !important;
  column-gap: 0.6rem !important;
  justify-content: center !important;
  text-transform: uppercase !important;
  font-size: 12px !important;
  font-weight: 700 !important;
  letter-spacing: 2px !important;
  color: #fff !important;
  background: linear-gradient(135deg, #00f5d4 0%, #38bdf8 50%, #8b5cf6 100%) !important;
  padding: 12px 28px !important;
  border-radius: 999px !important;
  cursor: pointer !important;
  box-shadow: 0 4px 18px rgba(0, 245, 212, 0.4) !important;
  transition: all 0.35s ease-in-out !important;
}

.see__more:hover {
  transform: translateY(-2px) scale(1.03) !important;
  box-shadow: 0 6px 25px rgba(0, 245, 212, 0.6) !important;
}

.see__more i {
  transition: transform 0.3s ease !important;
}

.see__more:hover i {
  transform: translateX(4px) !important;
}

/* Contact: ghi chú email + trạng thái đang gửi */
.contact-note {
  margin-top: 1.1rem;
  font-size: 0.8rem;
  line-height: 1.5;
  text-align: center;
  color: var(--text-color, #9ca3af);
}
.contact-note i { color: var(--first-color, #38bdf8); margin-right: 0.35rem; }
.contact-note b { color: var(--title-color, #fff); font-weight: 600; word-break: break-all; }
#contact-form .see__more:disabled { opacity: 0.7; cursor: not-allowed; }

/* ==========================================================================
   FIX RESPONSIVE: SPOTLIGHT BIO KHÔNG BỊ TRÀN VIỀN TRÊN MỌI MOBILE
   (chỉ ảnh hưởng .user-highlight-card, các phần khác giữ nguyên)
   ========================================================================== */
@media screen and (max-width: 768px) {
  /* Cột grid cha không bị đoạn mô tả dài kéo rộng nữa -> khung luôn nằm giữa, cách đều 2 bên */
  .profile__area {
    grid-template-columns: minmax(0, 1fr);
  }

  .user-highlight-card {
    box-sizing: border-box;
    width: auto;
    max-width: 820px;
    justify-self: stretch;
  }

  .user-highlight-card .highlight-info-grid {
    max-width: 100%;
  }

  .user-highlight-card .info-pill {
    box-sizing: border-box;
    max-width: 100%;
    min-width: 0;
  }

  .user-highlight-card .info-pill > span:not(.badminton-shuttlecock-icon) {
    min-width: 0;
    text-align: left;
    overflow-wrap: anywhere;
  }

  .user-highlight-card .highlight-quote-phrase {
    overflow-wrap: anywhere;
  }
}

@media screen and (max-width: 360px) {
  .user-highlight-card {
    padding: 1.2rem 0.8rem;
  }

  .user-highlight-card .highlight-badge {
    font-size: 0.74rem;
    padding: 5px 14px;
  }

  .user-highlight-card .info-pill {
    font-size: 0.74rem;
    padding: 0.4rem 0.7rem;
    gap: 0.5rem;
  }
}


/* ==========================================================================
   ALBUM 6 ẢNH - RESPONSIVE (điện thoại / tablet: xếp dọc, chồng nghiêng như mẫu)
   ========================================================================== */
@media screen and (max-width: 820px) {
  .carousel__wrapper_six {
    display: flex;
    flex-direction: column;
    align-items: center;
    row-gap: 0;
    padding: 20px 0;
  }

  .carousel__item_six {
    width: 90%;
    height: auto;
    margin-left: 0;
    transition: transform 0.3s ease;
  }

  .carousel__item_six img {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
  }
}

/* ==========================================================================
   SPOTLIGHT BIO - chữ tiêu đề nổi bật hơn ở chế độ sáng (dark mode giữ nguyên)
   ========================================================================== */
body:not(.dark) .highlight-badge {
  color: #6d28d9;
}


/* ==========================================================================
   HIỆU ỨNG BỔ SUNG CHO TRÌNH PHÁT NHẠC (chỉ thêm, không đổi bố cục)
   ========================================================================== */
/* Đĩa than: tạm dừng thì đứng yên tại chỗ (không giật về 0°) */
.vinyl-disc-wrap.has-started {
  animation: spinVinylDisc 6s linear infinite;
  animation-play-state: paused;
}
.vinyl-disc-wrap.has-started.playing {
  animation-play-state: running;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.7), 0 0 28px rgba(0, 245, 212, 0.55);
}
/* Sóng nhạc chỉ nhảy khi đang phát */
.track-item-card.active .s-bar { animation-play-state: paused; }
.music-player-container-img1.is-playing .track-item-card.active .s-bar { animation-play-state: running; }
/* Thanh tiến trình phát sáng nhẹ khi đang phát */
.music-player-container-img1.is-playing .music-progress-fill {
  box-shadow: 0 0 10px rgba(0, 245, 212, 0.7);
}