/* ==========================================================================
   TienDung Redesign - Ultra Modern Red Cyber / Defeat.vn Theme
   Deep Obsidian & Neon Crimson with Reactive Canvas, Beams & Comets
   ========================================================================== */

:root {
  /* Core Colors (Red / Crimson default) */
  --bg-space: #070406;
  --bg-card: rgba(18, 10, 14, 0.72);
  --bg-card-hover: rgba(28, 14, 20, 0.85);
  --bg-card-solid: #12090c;
  
  --border-subtle: rgba(255, 42, 64, 0.14);
  --border-medium: rgba(255, 42, 64, 0.28);
  --border-focus: rgba(255, 42, 64, 0.65);

  --text-main: #ffffff;
  --text-body: #d1d5db;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;

  /* Red Crimson Theme Variables */
  --primary: #ff2a40;
  --primary-light: #ff5266;
  --primary-dark: #dc2626;
  --primary-glow: rgba(255, 42, 64, 0.38);
  --primary-glow-subtle: rgba(255, 42, 64, 0.16);
  --secondary: #ff7588;

  /* Semantic Feedback */
  --success: #10b981;
  --success-glow: rgba(16, 185, 129, 0.25);
  --danger: #ff2a40;
  --danger-bg: rgba(255, 42, 64, 0.12);
  --danger-border: rgba(255, 42, 64, 0.38);
  --warning: #f59e0b;
  --highlight-cyan: #38bdf8;

  /* Layout & Geometry */
  --radius-xl: 22px;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --radius-pill: 9999px;

  --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Other Theme Variants (if switched in admin) */
body[data-theme="indigo"] {
  --primary: #6366f1;
  --primary-light: #818cf8;
  --primary-dark: #4f46e5;
  --primary-glow: rgba(99, 102, 241, 0.35);
  --primary-glow-subtle: rgba(99, 102, 241, 0.15);
  --secondary: #06b6d4;
  --border-subtle: rgba(99, 102, 241, 0.14);
}
body[data-theme="cyan"] {
  --primary: #06b6d4;
  --primary-light: #38bdf8;
  --primary-dark: #0891b2;
  --primary-glow: rgba(6, 182, 212, 0.35);
  --secondary: #10b981;
  --border-subtle: rgba(6, 182, 212, 0.14);
}
body[data-theme="emerald"] {
  --primary: #10b981;
  --primary-light: #34d399;
  --primary-dark: #059669;
  --primary-glow: rgba(16, 185, 129, 0.35);
  --secondary: #06b6d4;
  --border-subtle: rgba(16, 185, 129, 0.14);
}
body[data-theme="purple"] {
  --primary: #a855f7;
  --primary-light: #c084fc;
  --primary-dark: #9333ea;
  --primary-glow: rgba(168, 85, 247, 0.35);
  --secondary: #ec4899;
  --border-subtle: rgba(168, 85, 247, 0.14);
}

/* Base Reset & Typography */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-space);
  color: var(--text-main);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 44px 16px 64px;
}

.mono {
  font-family: 'JetBrains Mono', monospace;
}

.hidden {
  display: none !important;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-space);
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 42, 64, 0.2);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 42, 64, 0.4);
}

/* ==========================================================================
   Interactive Background Canvas & Comets (Inspired by Defeat.vn)
   ========================================================================== */
.cyber-canvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  opacity: 0.85;
}

/* Meteors / Comets */
.comets-container {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.comet {
  position: absolute;
  width: 2px;
  height: 90px;
  background: linear-gradient(180deg, rgba(255, 42, 64, 0.9), transparent);
  opacity: 0;
  transform: rotate(-45deg);
  filter: drop-shadow(0 0 6px rgba(255, 42, 64, 0.8));
}

.comet-1 {
  top: -100px;
  left: 20%;
  animation: cometFall 7s linear infinite;
  animation-delay: 1.5s;
}

.comet-2 {
  top: -100px;
  left: 65%;
  animation: cometFall 9s linear infinite;
  animation-delay: 4s;
}

.comet-3 {
  top: -100px;
  left: 85%;
  animation: cometFall 6s linear infinite;
  animation-delay: 2.2s;
}

@keyframes cometFall {
  0% {
    opacity: 0;
    transform: translateY(0) translateX(0) rotate(-45deg);
  }
  10% {
    opacity: 1;
  }
  30% {
    opacity: 0.8;
    transform: translateY(600px) translateX(600px) rotate(-45deg);
  }
  35%, 100% {
    opacity: 0;
    transform: translateY(800px) translateX(800px) rotate(-45deg);
  }
}

/* Ambient Radial Glows */
.ambient-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.7;
}

.glow-top {
  top: -140px;
  left: 50%;
  transform: translateX(-50%);
  width: 720px;
  height: 460px;
  background: radial-gradient(circle, rgba(255, 42, 64, 0.28) 0%, rgba(220, 20, 50, 0.12) 50%, transparent 75%);
  animation: floatTop 10s ease-in-out infinite alternate;
}

.glow-middle {
  top: 40%;
  left: -150px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 30, 60, 0.12) 0%, transparent 70%);
}

.glow-bottom {
  bottom: -150px;
  right: -100px;
  width: 580px;
  height: 520px;
  background: radial-gradient(circle, rgba(255, 42, 64, 0.16) 0%, rgba(220, 20, 50, 0.08) 60%, transparent 75%);
}

@keyframes floatTop {
  0% { transform: translateX(-50%) translateY(0) scale(1); }
  100% { transform: translateX(-48%) translateY(25px) scale(1.06); }
}

.cyber-grid-overlay {
  position: fixed;
  inset: 0;
  background-image: 
    linear-gradient(rgba(255, 42, 64, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 42, 64, 0.035) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

/* ==========================================================================
   Main Wrapper
   ========================================================================== */
.main-wrapper {
  width: 100%;
  max-width: 680px;
  display: flex;
  flex-direction: column;
  gap: 22px;
  position: relative;
  z-index: 1;
}

/* Glass Panels with Dynamic Spotlight */
.glass-panel {
  background: var(--bg-card);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  box-shadow: 0 14px 40px -10px rgba(0, 0, 0, 0.7);
  transition: border-color var(--transition-smooth), transform var(--transition-smooth), box-shadow var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.glass-panel:hover {
  border-color: var(--border-medium);
  box-shadow: 0 18px 45px -8px rgba(0, 0, 0, 0.8), 0 0 20px -5px var(--primary-glow-subtle);
}

/* Dynamic Spotlight Glow (following cursor) */
.glass-panel::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(400px circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(255, 42, 64, 0.12), transparent 40%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 1;
}

.glass-panel:hover::before {
  opacity: 1;
}

/* Running Border Beam Effect */
.border-beam {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--primary) 50%, transparent 100%);
  background-size: 200% 100%;
  animation: borderBeamRun 4s linear infinite;
  z-index: 2;
  pointer-events: none;
}

@keyframes borderBeamRun {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* ==========================================================================
   3D 4-Corner Parallax Tilt & Specular Glare
   ========================================================================== */
.container,
.services-grid,
.projects-container,
.contacts-grid,
.payment-section {
  perspective: 1200px;
}

.service-card,
.project-card,
.contact-btn,
.payment-card-frame,
.security-banner,
.profile-hero-card,
.data-detail-card {
  transform-style: preserve-3d;
  will-change: transform;
}

/* Dynamic Specular Glare Highlight */
.service-card::before,
.project-card::before,
.contact-btn::before,
.data-detail-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(350px circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(255, 255, 255, 0.08), rgba(255, 42, 64, 0.08) 35%, transparent 65%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 2;
}

.service-card:hover::before,
.project-card:hover::before,
.contact-btn:hover::before,
.data-detail-card:hover::before {
  opacity: 1;
}

/* ==========================================================================
   Profile Hero Card
   ========================================================================== */
.profile-hero-card {
  padding: 36px 24px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
}

.profile-avatar-container {
  position: relative;
  margin-bottom: 18px;
}

.avatar-ring-glow {
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, #ff1a35, #ff5964, #f59e0b, #ff1a35);
  filter: blur(10px);
  opacity: 0.75;
  animation: spinGlow 8s linear infinite;
}

@keyframes spinGlow {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.avatar-box {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: #11080b;
  padding: 3.5px;
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid rgba(255, 50, 75, 0.35);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.6);
  overflow: hidden;
}

.avatar-fallback {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: linear-gradient(135deg, #1c0c11, #0d0608);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 34px;
  font-weight: 800;
  color: #fff;
  letter-spacing: -1px;
  text-shadow: 0 0 12px var(--primary-glow);
}

.avatar-image {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
}

.live-status-badge {
  position: absolute;
  bottom: 2px;
  right: 6px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #14080b;
  border: 2.5px solid #070406;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}

.status-core {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #ff2a40;
  box-shadow: 0 0 10px #ff2a40;
  animation: pulseDotRed 2s infinite;
}

.status-busy .status-core {
  background: #f59e0b;
  box-shadow: 0 0 8px #f59e0b;
}

.status-offline .status-core {
  background: #64748b;
  box-shadow: none;
  animation: none;
}

@keyframes pulseDotRed {
  0%, 100% { opacity: 1; transform: scale(1); box-shadow: 0 0 10px #ff2a40; }
  50% { opacity: 0.45; transform: scale(0.8); box-shadow: 0 0 4px #ff2a40; }
}

/* Profile Name */
.profile-name-row {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
}

.profile-title {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -0.6px;
  background: linear-gradient(135deg, #ffffff 40%, #fecdd3 80%, #ff5266 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 2px 10px rgba(255, 42, 64, 0.25));
}

.profile-role-chip {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: #ff7588;
  background: rgba(255, 42, 64, 0.12);
  border: 1px solid rgba(255, 42, 64, 0.28);
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 14px;
}

.profile-bio-text {
  font-size: 14px;
  color: var(--text-body);
  max-width: 480px;
  line-height: 1.55;
  margin: 0 auto 22px;
}

/* Stats Badges */
.profile-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  width: 100%;
  max-width: 460px;
  margin-bottom: 22px;
}

.stat-item {
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 9px 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: var(--transition-fast);
}

.stat-item:hover {
  background: rgba(255, 42, 64, 0.08);
  border-color: var(--border-medium);
  transform: translateY(-2px);
}

.stat-number {
  font-size: 17.5px;
  font-weight: 800;
  color: #fff;
  font-family: 'JetBrains Mono', monospace;
}

.stat-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  margin-top: 2px;
}

/* Hero Actions */
.hero-actions-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  width: 100%;
}

.btn-primary-action {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--primary), #b91c1c);
  color: #fff;
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 4px 18px var(--primary-glow);
  transition: var(--transition-fast);
}

.btn-primary-action:hover {
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  box-shadow: 0 6px 24px var(--primary-glow);
  transform: translateY(-2px);
}

.btn-primary-action svg {
  flex-shrink: 0;
  transition: transform 0.25s ease;
}

.btn-primary-action:hover svg {
  transform: scale(1.15);
}

.btn-secondary-action {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.btn-secondary-action:hover {
  background: rgba(255, 42, 64, 0.12);
  border-color: var(--border-medium);
  transform: translateY(-2px);
}

.btn-icon-action {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-body);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-icon-action:hover {
  background: rgba(255, 42, 64, 0.15);
  color: #fff;
  border-color: var(--border-medium);
  transform: translateY(-2px);
}

/* ==========================================================================
   Section Headers
   ========================================================================== */
.content-section {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.section-label-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 4px;
}

.section-badge-code {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--primary);
  font-family: 'JetBrains Mono', monospace;
  text-shadow: 0 0 10px var(--primary-glow);
}

.section-main-title {
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: #ffffff;
  white-space: nowrap;
}

.section-line-fill {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--border-medium), transparent);
}

/* ==========================================================================
   Services Grid
   ========================================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

@media (max-width: 580px) {
  .services-grid {
    grid-template-columns: 1fr;
  }
}

.service-card {
  background: linear-gradient(145deg, rgba(26, 12, 18, 0.82), rgba(16, 8, 12, 0.92));
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 11px;
  position: relative;
  overflow: hidden;
  transition: var(--transition-smooth);
}

.service-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-focus);
  box-shadow: 0 10px 30px -5px var(--primary-glow);
}

.service-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), #f59e0b);
  opacity: 0.9;
}

.service-card.theme-cyan::after {
  background: linear-gradient(90deg, #ff2a40, #ff7588);
}

.service-top {
  display: flex;
  align-items: center;
  gap: 12px;
}

.service-icon-box {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: var(--primary-glow-subtle);
  border: 1px solid rgba(255, 42, 64, 0.28);
  color: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.service-title {
  font-size: 15.5px;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.35;
}

.service-desc {
  font-size: 13.5px;
  color: var(--text-body);
  line-height: 1.55;
  flex: 1;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 2px;
}

.service-tag {
  font-size: 11px;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-muted);
}

.service-tag.highlight {
  background: var(--primary-glow-subtle);
  border-color: rgba(255, 42, 64, 0.35);
  color: #ff7588;
}

/* ==========================================================================
   Featured Projects Showcase
   ========================================================================== */
.projects-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.project-card {
  background: linear-gradient(145deg, rgba(26, 12, 18, 0.85), rgba(16, 8, 12, 0.95));
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: var(--transition-smooth);
  box-shadow: 0 12px 35px -10px rgba(0, 0, 0, 0.6);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  border-color: var(--border-focus);
  box-shadow: 0 16px 40px -8px var(--primary-glow);
  transform: translateY(-2px);
}

.project-image-wrap {
  width: 100%;
  height: 220px;
  position: relative;
  overflow: hidden;
  background: #090e1a;
  cursor: zoom-in;
}

.project-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  display: block;
}

.project-card:hover .project-img {
  transform: scale(1.04);
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(16, 8, 12, 0.95) 0%, rgba(16, 8, 12, 0.2) 65%, transparent 100%);
  pointer-events: none;
}

.project-status-pill {
  position: absolute;
  top: 14px;
  right: 14px;
  background: rgba(18, 8, 12, 0.9);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 42, 64, 0.45);
  color: #ff5266;
  font-size: 11.5px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  display: flex;
  align-items: center;
  gap: 6px;
  letter-spacing: 0.3px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #ff2a40;
  box-shadow: 0 0 8px #ff2a40;
}

.project-content {
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.project-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.project-name {
  font-size: 19.5px;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.4px;
}

.project-category {
  font-size: 12px;
  color: #ff7588;
  background: var(--primary-glow-subtle);
  border: 1px solid rgba(255, 42, 64, 0.35);
  padding: 3px 10px;
  border-radius: 6px;
  font-weight: 700;
  font-family: 'JetBrains Mono', monospace;
}

.project-desc {
  font-size: 13.5px;
  color: var(--text-body);
  line-height: 1.6;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.project-tag {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 3px 9px;
  border-radius: 6px;
}

.project-cta-btn {
  margin-top: 4px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--primary), #b91c1c);
  color: #ffffff;
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 700;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 15px var(--primary-glow);
  width: fit-content;
}

.project-cta-btn:hover {
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--primary-glow);
}

/* ==========================================================================
   Security Alert Banner
   ========================================================================== */
.security-banner-wrapper {
  width: 100%;
}

.security-banner {
  background: var(--danger-bg);
  border: 1px solid var(--danger-border);
  padding: 15px 18px;
  display: flex;
  align-items: center;
  gap: 15px;
  box-shadow: 0 6px 25px -4px rgba(255, 42, 64, 0.25);
  position: relative;
  overflow: hidden;
  animation: pulseDanger 3.5s ease-in-out infinite;
}

@keyframes pulseDanger {
  0%, 100% { border-color: rgba(255, 42, 64, 0.38); }
  50% { border-color: rgba(255, 42, 64, 0.85); }
}

.security-icon-box {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(255, 42, 64, 0.2);
  border: 1px solid rgba(255, 42, 64, 0.45);
  color: #ff5266;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.security-content {
  flex: 1;
}

.security-heading {
  font-size: 13.5px;
  font-weight: 800;
  color: #fecdd3;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  margin-bottom: 2px;
}

.security-desc {
  font-size: 13.5px;
  color: #ffe4e6;
  line-height: 1.45;
  font-weight: 500;
}

.security-desc strong {
  color: #fff;
  font-weight: 700;
}

/* ==========================================================================
   Contacts Grid
   ========================================================================== */
.contacts-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

@media (max-width: 540px) {
  .contacts-grid {
    grid-template-columns: 1fr;
  }
}

.contact-btn {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-main);
  text-decoration: none;
  transition: var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.contact-btn:hover {
  transform: translateY(-2px);
  border-color: var(--card-brand-color, var(--primary-light));
  box-shadow: 0 8px 25px -5px var(--card-brand-glow, var(--primary-glow));
  background: var(--bg-card-hover);
}

.contact-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition-fast);
  background: rgba(255, 255, 255, 0.06);
}

.contact-btn:hover .contact-icon-box {
  transform: scale(1.08);
}

.contact-info {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}

.contact-name-row {
  display: flex;
  align-items: center;
  gap: 6px;
}

.contact-name {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
}

.contact-badge-pill {
  font-size: 10px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-muted);
}

.contact-sub {
  font-size: 12.5px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 1px;
}

.contact-arrow {
  color: var(--text-dim);
  transition: var(--transition-fast);
}

.contact-btn:hover .contact-arrow {
  color: #fff;
  transform: translateX(3px);
}

/* ==========================================================================
   Payment & VietQR Section
   ========================================================================== */
.payment-card-frame {
  padding: 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.payment-card-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
  flex-wrap: wrap;
  gap: 12px;
}

.bank-identity {
  display: flex;
  align-items: center;
  gap: 14px;
}

.bank-avatar-badge {
  width: 46px;
  height: 46px;
  background: linear-gradient(135deg, #002366, #001233);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 16px;
  color: #fff;
  box-shadow: 0 4px 16px rgba(0, 35, 102, 0.5);
}

.bank-info-col {
  display: flex;
  flex-direction: column;
}

.bank-name-display {
  font-size: 16.5px;
  font-weight: 800;
  color: #fff;
}

.bank-fullname-display {
  font-size: 12.5px;
  color: var(--text-muted);
}

.vietqr-live-pill {
  background: rgba(255, 42, 64, 0.14);
  border: 1px solid rgba(255, 42, 64, 0.4);
  color: #ff5266;
  font-size: 11.5px;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  display: flex;
  align-items: center;
  gap: 6px;
}

.qr-pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #ff2a40;
  animation: pulseDotRed 2s infinite ease-out;
}

.payment-grid-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 20px;
  align-items: center;
}

@media (max-width: 640px) {
  .payment-grid-layout {
    grid-template-columns: 1fr;
    justify-items: center;
  }
}

/* Left: QR Box */
.qr-interactive-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  width: 100%;
  max-width: 240px;
}

.qr-frame-box {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
  border: 2px solid rgba(255, 255, 255, 0.9);
  position: relative;
  width: 100%;
  overflow: hidden;
}

/* Neon Crimson Laser Scanner Line */
.qr-scanner-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 2.5px;
  background: linear-gradient(90deg, transparent, #ff2a40, #ff7588, #ff2a40, transparent);
  box-shadow: 0 0 14px #ff2a40;
  opacity: 0.9;
  animation: scanMove 2.8s ease-in-out infinite alternate;
}

@keyframes scanMove {
  0% { top: 8%; }
  100% { top: 92%; }
}

.vietqr-image-render {
  width: 100%;
  height: auto;
  border-radius: 8px;
  display: block;
  transition: transform var(--transition-smooth);
}

.qr-frame-box:hover .vietqr-image-render {
  transform: scale(1.02);
}

.qr-scan-hint {
  font-size: 11px;
  font-weight: 700;
  color: #475569;
  margin-top: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 5px;
}

.download-qr-action-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 7px 14px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-body);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition-fast);
  width: 100%;
  justify-content: center;
}

.download-qr-action-btn:hover {
  background: rgba(255, 42, 64, 0.15);
  color: #fff;
  border-color: var(--border-medium);
}

/* Right: Payment details column */
.payment-details-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
}

.data-detail-card {
  background: rgba(22, 10, 15, 0.72);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: var(--transition-fast);
}

.data-detail-card.highlight-field {
  border-color: rgba(255, 42, 64, 0.4);
  background: rgba(255, 42, 64, 0.08);
}

.detail-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.detail-label {
  font-size: 11.5px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

.official-verified-tag {
  font-size: 10.5px;
  font-weight: 700;
  color: #ff5266;
  background: rgba(255, 42, 64, 0.15);
  padding: 1px 6px;
  border-radius: 4px;
}

.detail-value-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.detail-value-text {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  word-break: break-all;
}

.highlight-field .detail-value-text {
  font-size: 20px;
  color: #ff5266;
  letter-spacing: 0.8px;
  text-shadow: 0 0 10px rgba(255, 42, 64, 0.3);
}

.btn-copy-field {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  color: #f1f5f9;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition-fast);
  flex-shrink: 0;
}

.btn-copy-field:hover {
  background: var(--primary-glow);
  border-color: var(--primary);
  color: #fff;
}

.btn-copy-field:active {
  transform: scale(0.96);
}

/* Dynamic QR Customizer */
.qr-customizer-box {
  background: rgba(18, 8, 12, 0.6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 13px;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.customizer-title-row {
  font-size: 12px;
  font-weight: 600;
  color: #ff7588;
  display: flex;
  align-items: center;
  gap: 6px;
}

.amount-chips-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.amount-chip {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  padding: 4px 9px;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-body);
  cursor: pointer;
  transition: var(--transition-fast);
}

.amount-chip:hover, .amount-chip.active {
  background: var(--primary);
  border-color: var(--primary-light);
  color: #fff;
  box-shadow: 0 0 10px var(--primary-glow);
}

.amount-chip.reset-chip {
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.25);
  color: #fca5a5;
}

.amount-chip.reset-chip:hover {
  background: rgba(239, 68, 68, 0.25);
  color: #fff;
}

.custom-qr-inputs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

@media (max-width: 480px) {
  .custom-qr-inputs {
    grid-template-columns: 1fr;
  }
}

.input-inline-wrap {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.input-inline-wrap label {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 600;
}

.input-inline-wrap input {
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  color: #fff;
  font-size: 12.5px;
  font-family: inherit;
  outline: none;
  transition: var(--transition-fast);
}

.input-inline-wrap input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 8px var(--primary-glow);
}

/* Caution checklist */
.caution-checklist-card {
  background: rgba(255, 42, 64, 0.08);
  border: 1px solid rgba(255, 42, 64, 0.25);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.caution-check-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 12.5px;
  font-weight: 500;
  color: #fecdd3;
  line-height: 1.4;
}

.caution-check-item svg {
  flex-shrink: 0;
  margin-top: 2px;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  margin-top: 14px;
  padding: 20px 16px 10px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
}

.footer-logo-text {
  font-weight: 800;
  background: linear-gradient(135deg, #ffffff, #fecdd3);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.footer-separator {
  color: var(--text-dim);
}

.footer-claim {
  color: var(--text-muted);
  font-size: 12px;
}

.footer-note {
  font-size: 12.5px;
  color: var(--text-muted);
  max-width: 500px;
}

.footer-meta-stats {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 2px;
}

.page-views-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(255, 255, 255, 0.04);
  padding: 3px 9px;
  border-radius: var(--radius-pill);
}

/* ==========================================================================
   Image Lightbox Modal
   ========================================================================== */
.lightbox-modal {
  position: fixed;
  inset: 0;
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-smooth);
}

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

.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(7, 3, 5, 0.88);
  backdrop-filter: blur(16px);
}

.lightbox-container {
  position: relative;
  z-index: 2;
  max-width: 90vw;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-image {
  max-width: 100%;
  max-height: 75vh;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-medium);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.85);
  object-fit: contain;
}

.lightbox-caption {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  margin-top: 12px;
  text-align: center;
}

.lightbox-close-btn {
  position: absolute;
  top: -45px;
  right: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.lightbox-close-btn:hover {
  background: rgba(255, 42, 64, 0.35);
  transform: scale(1.1);
}

/* ==========================================================================
   Toast Notification
   ========================================================================== */
.toast-box {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: #19090e;
  border: 1px solid rgba(255, 42, 64, 0.5);
  color: #fff;
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}

.toast-box.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.toast-text {
  font-size: 13.5px;
  font-weight: 600;
  white-space: nowrap;
}

.toast-progress-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 2px;
  background: #ff2a40;
  width: 0%;
  transition: width 2.5s linear;
}

.toast-box.show .toast-progress-bar {
  width: 100%;
}