/* ==========================================================================
   VRADIAL — DIGITAL BIOSPHERE DESIGN SYSTEM (ĐỘC LẠ & RỰC RỠ)
   ========================================================================== */

/* 1. DYNAMIC BIOME THEMES (SPACE EDITION) */
:root,
html[data-biome="rainforest"] {
  --bg-deep: #03040b;
  --bg-card: rgba(6, 8, 20, 0.2);
  --bg-card-hover: rgba(12, 16, 35, 0.35);
  --color-primary: #00e5ff;
  --color-secondary: #7000ff;
  --glow-primary: rgba(0, 229, 255, 0.3);
  --border-glow: rgba(0, 229, 255, 0.22);
  --border-glow-bright: rgba(0, 229, 255, 0.55);
}

html[data-biome="sunset"] {
  --bg-deep: #0d0408;
  --bg-card: rgba(26, 10, 18, 0.2);
  --bg-card-hover: rgba(38, 14, 26, 0.35);
  --color-primary: #ff3c8c;
  --color-secondary: #ffa014;
  --glow-primary: rgba(255, 60, 140, 0.3);
  --border-glow: rgba(255, 60, 140, 0.22);
  --border-glow-bright: rgba(255, 60, 140, 0.55);
}

html[data-biome="aurora"] {
  --bg-deep: #03040e;
  --bg-card: rgba(14, 11, 30, 0.2);
  --bg-card-hover: rgba(22, 17, 46, 0.35);
  --color-primary: #9d4edd;
  --color-secondary: #00ffc8;
  --glow-primary: rgba(157, 78, 221, 0.3);
  --border-glow: rgba(157, 78, 221, 0.22);
  --border-glow-bright: rgba(157, 78, 221, 0.55);
}

:root {
  --text-pure: #ffffff;
  --text-main: #e2e8f0;
  --text-dim: #94a3b8;
  --text-muted: #64748b;
  --border-subtle: rgba(255, 255, 255, 0.08);

  --font-sans: 'Plus Jakarta Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  background-color: var(--bg-deep);
  color: var(--text-main);
  font-family: var(--font-sans);
  scroll-behavior: smooth;
  transition: background-color 0.5s ease;
}

body {
  min-height: 100vh;
  position: relative;
  line-height: 1.6;
  overflow-x: hidden;
}

#nature-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1;
  pointer-events: none;
}

/* ==========================================================================
   WORKBENCH MAIN
   ========================================================================== */
.workbench-main {
  position: relative;
  z-index: 10;
  max-width: 1240px;
  margin: 0 auto;
  padding: 7.5rem 1.5rem 4rem;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.workbench-card {
  width: 100%;
  padding: 4rem;
  background: var(--bg-card);
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
  border: 1px solid var(--border-glow);
  border-radius: 24px;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.8),
              inset 0 0 0 1px rgba(255, 255, 255, 0.05),
              0 0 40px var(--glow-primary);
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  opacity: 1;
  transform: translateY(0) scale(1);
}

.workbench-main.ui-hidden .workbench-card {
  opacity: 0;
  pointer-events: none;
  transform: translateY(30px) scale(0.95);
}

.workbench-card:hover {
  border-color: var(--border-glow-bright);
}

/* Toggle UI Button */
.toggle-ui-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: rgba(0,0,0,0.5);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 100;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
  box-shadow: 0 5px 15px rgba(0,0,0,0.5);
}

.toggle-ui-btn:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  transform: scale(1.1);
}

.toggle-ui-btn.active {
  color: var(--color-secondary);
  border-color: var(--color-secondary);
  background: rgba(0,0,0,0.8);
}

/* Card Header */
.card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Biome Picker inside Header */
.biome-picker {
  display: flex;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  padding: 0.25rem;
  backdrop-filter: blur(10px);
}

.biome-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.8rem;
  border-radius: 15px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.biome-btn:hover {
  color: var(--text-base);
  background: rgba(255, 255, 255, 0.05);
}

.biome-btn.active {
  color: var(--color-primary);
  background: rgba(16, 240, 140, 0.1);
  box-shadow: 0 0 10px rgba(16, 240, 140, 0.1);
}

.biome-btn .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 8px currentColor;
}

.dot-forest { color: #00e5ff; background: currentColor; }
.dot-sunset { color: #ff3c8c; background: currentColor; }
.dot-aurora { color: #9d4edd; background: currentColor; }

/* Language Picker inside Header */
.lang-picker {
  display: flex;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  padding: 0.25rem;
  backdrop-filter: blur(10px);
}

.lang-btn {
  padding: 0.4rem 0.8rem;
  border-radius: 15px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 600;
}

.lang-btn:hover {
  color: var(--text-base);
  background: rgba(255, 255, 255, 0.05);
}

.lang-btn.active {
  color: var(--color-primary);
  background: rgba(16, 240, 140, 0.1);
  box-shadow: 0 0 10px rgba(16, 240, 140, 0.1);
}

/* Sound Toggle inside Header */
.sound-toggle-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  padding: 0.4rem 1rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.sound-toggle-btn:hover {
  color: var(--text-base);
  border-color: rgba(255,255,255,0.2);
}

.sound-toggle-btn.playing {
  color: var(--color-primary);
  border-color: var(--color-primary);
  box-shadow: 0 0 10px rgba(16, 240, 140, 0.2);
}

.sound-bars {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 12px;
}

.sound-bars span {
  display: inline-block;
  width: 3px;
  background: currentColor;
  border-radius: 2px;
  height: 4px;
  transition: height 0.2s ease;
}

.sound-toggle-btn.playing span {
  animation: bounceBar 1s ease infinite alternate;
}

.sound-toggle-btn.playing span:nth-child(1) { animation-delay: 0s; }
.sound-toggle-btn.playing span:nth-child(2) { animation-delay: -0.4s; }
.sound-toggle-btn.playing span:nth-child(3) { animation-delay: -0.8s; }

@keyframes bounceBar {
  0% { height: 4px; }
  100% { height: 12px; }
}

.identity-group {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.avatar-ring {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  box-shadow: 0 0 20px var(--glow-primary);
  padding: 3px;
}

.avatar-img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  background: #030805;
}

.live-dot {
  position: absolute;
  bottom: 2px;
  right: 2px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 2px solid var(--bg-deep);
}

.user-title {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--text-pure);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.user-subtitle {
  font-size: 0.85rem;
  color: var(--color-primary);
  font-weight: 500;
  margin-top: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Intro Statement */
.intro-statement {
  margin-bottom: 2.2rem;
}

.intro-statement p {
  font-size: 1rem;
  color: var(--text-main);
  line-height: 1.7;
  font-weight: 300;
}

.intro-statement strong {
  color: var(--text-pure);
  font-weight: 600;
}

/* Tabs Nav */
.tabs-container {
  display: flex;
  gap: 1.2rem;
  overflow-x: auto;
  padding: 0.5rem 0 1.5rem 0;
  margin-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  position: relative;
}

.tab-icon-chibi {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  object-fit: cover;
  box-shadow: 0 0 5px rgba(0,0,0,0.5);
}

.tab-btn {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 1.2rem;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  cursor: pointer;
  border-radius: 12px;
  white-space: nowrap;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.tab-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.05), transparent);
  transition: 0.5s;
}

.tab-btn:hover::before {
  left: 100%;
}

.tab-btn:hover {
  color: var(--text-pure);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

.tab-btn.active {
  color: var(--color-primary);
  background: rgba(0, 0, 0, 0.4);
  border-color: var(--color-primary);
  box-shadow: 0 0 20px var(--glow-primary), inset 0 0 10px var(--glow-primary);
}

.tab-icon {
  font-size: 1.2rem;
  opacity: 0.9;
}

/* Tabs Body */
.tabs-body {
  min-height: 220px;
  margin-bottom: 2.5rem;
}

.tab-pane {
  display: none;
  animation: fadeIn 0.35s ease;
}

.tab-pane.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Tab 1: About Grid */
.pane-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.highlight-item {
  padding: 2rem 1.8rem;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.03) 0%, rgba(0, 0, 0, 0.2) 100%);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.highlight-item:hover {
  transform: translateY(-5px);
  border-color: var(--border-glow);
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.item-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-primary);
  display: block;
  margin-bottom: 0.6rem;
}

.highlight-item h4 {
  font-size: 0.92rem;
  color: var(--text-pure);
  margin-bottom: 0.4rem;
}

.highlight-item p {
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.6;
}

/* Tab 2: Stack Showcase */
.stack-showcase {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.stack-category {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.cat-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
}

.chips-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tech-chip {
  padding: 0.4rem 0.9rem;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-main);
  transition: all 0.2s ease;
}

.tech-chip:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: rgba(16, 240, 140, 0.08);
}

/* Tab 3: Passions List */
.passions-list {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.passion-item {
  display: flex;
  align-items: flex-start;
  gap: 1.2rem;
  padding: 1.2rem 1.4rem;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
}

.passion-icon {
  font-size: 1.5rem;
}

.passion-item h4 {
  font-size: 1.05rem;
  color: var(--text-pure);
  margin-bottom: 0.2rem;
}

.passion-item p {
  font-size: 0.9rem;
  color: var(--text-dim);
}

/* Tab 4: Contact */
.contact-box-modern {
  padding: 1.8rem;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-glow);
  border-radius: 12px;
}

.contact-hint {
  font-size: 0.95rem;
  color: var(--text-dim);
  margin-bottom: 1.5rem;
}

.contact-actions {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.email-display-inline {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-right: 1rem;
  letter-spacing: 0.5px;
}

.action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.5rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  color: var(--text-base);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
}

.action-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

.action-btn.primary {
  background: var(--color-primary);
  color: #000;
  border: none;
  font-weight: 600;
}

.action-btn.primary:hover {
  background: #0dd67a;
}

.action-btn.icon-only {
  padding: 0.8rem;
}

/* Social Grid */
.social-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.social-btn {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.8rem 1.2rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  color: var(--text-main);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.social-btn svg {
  width: 20px;
  height: 20px;
  transition: transform 0.3s ease;
}

.social-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border-glow);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.3);
}

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

/* Specific Social Colors on Hover */
.s-zalo:hover { color: #0068ff; border-color: #0068ff; box-shadow: 0 8px 20px rgba(0,104,255,0.2); }
.s-fb:hover { color: #1877f2; border-color: #1877f2; box-shadow: 0 8px 20px rgba(24,119,242,0.2); }
.s-x:hover { color: #fff; border-color: #fff; box-shadow: 0 8px 20px rgba(255,255,255,0.2); }
.s-phone:hover { color: #00d26a; border-color: #00d26a; box-shadow: 0 8px 20px rgba(0,210,106,0.2); }
.s-appstore:hover { color: #0ea5e9; border-color: #0ea5e9; box-shadow: 0 8px 20px rgba(14,165,233,0.2); }
.s-gplay:hover { color: #34d399; border-color: #34d399; box-shadow: 0 8px 20px rgba(52,211,153,0.2); }

/* Card Footer & Campfire Animation */
.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.hint-mouse {
  color: var(--color-primary);
  opacity: 0.85;
}

/* High Quality Pure CSS Energy Core */
.energy-core-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 48px;
  height: 48px;
  margin-right: 0.5rem;
  perspective: 100px;
}

.energy-core {
  position: relative;
  width: 40px;
  height: 40px;
  transform-style: preserve-3d;
  animation: core-spin 8s linear infinite;
}

.core-ring {
  position: absolute;
  top: 10%;
  left: 10%;
  width: 80%;
  height: 80%;
  border-radius: 50%;
  border: 2px solid var(--color-primary);
  opacity: 0.6;
}

.ring-1 {
  transform: rotateX(70deg) rotateY(15deg);
  animation: ring-pulse 2s ease-in-out infinite alternate;
}

.ring-2 {
  transform: rotateX(20deg) rotateY(60deg);
  border-color: var(--color-secondary);
  animation: ring-pulse 2.5s ease-in-out infinite alternate-reverse;
}

.ring-3 {
  transform: rotateX(45deg) rotateY(-45deg);
  border-color: #fff;
  opacity: 0.3;
}

.core-center {
  position: absolute;
  top: 35%;
  left: 35%;
  width: 30%;
  height: 30%;
  border-radius: 50%;
  background: radial-gradient(circle, #fff, var(--color-primary));
  box-shadow: 0 0 15px var(--glow-primary), 0 0 30px var(--glow-primary);
  animation: core-pulse 1.5s ease-in-out infinite alternate;
}

.core-particles {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  height: 100%;
  transform: translate(-50%, -50%);
}

.core-particles::before,
.core-particles::after {
  content: '';
  position: absolute;
  width: 4px;
  height: 4px;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 0 8px #fff;
  animation: orbit 3s linear infinite;
}

.core-particles::after {
  animation-duration: 4s;
  animation-direction: reverse;
}

@keyframes core-spin {
  0% { transform: rotateZ(0deg) rotateY(0deg); }
  100% { transform: rotateZ(360deg) rotateY(360deg); }
}

@keyframes ring-pulse {
  0% { transform: scale(0.9) rotateX(70deg) rotateY(15deg); }
  100% { transform: scale(1.1) rotateX(70deg) rotateY(15deg); opacity: 1; }
}

@keyframes core-pulse {
  0% { transform: scale(0.8); opacity: 0.8; }
  100% { transform: scale(1.2); opacity: 1; }
}

@keyframes orbit {
  0% { transform: rotate(0deg) translateX(15px) rotate(0deg); }
  100% { transform: rotate(360deg) translateX(15px) rotate(-360deg); }
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 800px) {
  .pane-grid,
  .social-grid {
    grid-template-columns: 1fr;
  }
  .card-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  .hud-tag {
    display: none;
  }
  .btn-text {
    display: none;
  }
  .card-footer {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }
}