/* 
  Premium UI - Modern Glassmorphism & Bento Box Layout 
  Created for ZEXO GIZA
*/

:root {
  /* Colors */
  --bg: #0b0f19; /* Deep Navy / Slate */
  --text: #f8fafc;
  --text-muted: #94a3b8;
  --accent: #38bdf8;
  --secondary: #818cf8;
  
  --card-bg: rgba(30, 41, 59, 0.4); 
  --card-bg-hover: rgba(30, 41, 59, 0.7);
  --header-bg: rgba(11, 15, 25, 0.8);
  
  /* Utilities */
  --glass-blur: 16px;
  --glass-border: 1px solid rgba(255, 255, 255, 0.08);
  --glass-border-hover: 1px solid rgba(56, 189, 248, 0.3);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
  --glass-shadow-hover: 0 12px 40px 0 rgba(0, 0, 0, 0.5);
  
  /* Typography */
  --font-base: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'Fira Code', monospace;
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-md: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.5rem;
  --text-xxl: 2.25rem;
  --transition-speed: 0.3s;
  
  /* Other Theme Variables to Support Old System (if needed) */
  --blob-size: 600px;
  --blob-color-1: rgba(56, 189, 248, 0.15);
  --blob-color-2: rgba(129, 140, 248, 0.15);
  --cursor-size: 20px;
  --cursor-color: rgba(56, 189, 248, 0.5);
  --cursor-hover-size: 40px;
  --cursor-hover-color: rgba(129, 140, 248, 0.8);
  --particle-color: #38bdf8;
  --mobile-control-size: 50px;
  --mobile-control-margin: 10px;
}

/* Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-base);
  font-size: 16px;
  color: var(--text);
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition-speed);
}

a:hover {
  color: var(--secondary);
}

body {
  background-color: var(--bg);
  background-image: radial-gradient(circle at top right, rgba(56, 189, 248, 0.05), transparent 40%),
                    radial-gradient(circle at bottom left, rgba(129, 140, 248, 0.05), transparent 40%);
  min-height: 100vh;
  position: relative;
  line-height: 1.6;
  overflow-x: hidden;
}

/* Skip to content - hidden until focused */
.skip-to-content {
  position: fixed;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: var(--bg);
  padding: 0.75rem 1.5rem;
  border-radius: 0 0 12px 12px;
  z-index: 10001;
  font-weight: 600;
  transition: top 0.3s ease;
}
.skip-to-content:focus {
  top: 0;
}

/* Visitor Counter */
.visitor-counter {
  position: fixed;
  top: 90px;
  left: 20px;
  background: var(--card-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: var(--glass-border);
  padding: 0.5rem 1rem;
  border-radius: 50px;
  font-size: var(--text-sm);
  color: var(--text-muted);
  z-index: 90;
  box-shadow: var(--glass-shadow);
}
.visitor-counter #visitorCount {
  color: var(--accent);
  font-weight: 700;
}

/* Scroll Indicator */
.scroll-indicator {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--secondary));
  z-index: 10000;
  transition: width 0.1s ease;
}

/* Blur Background Accents */
.blob {
  position: fixed;
  width: var(--blob-size);
  height: var(--blob-size);
  background: radial-gradient(circle, var(--blob-color-1), var(--blob-color-2));
  border-radius: 50%;
  filter: blur(100px);
  z-index: -2;
  opacity: 0.8;
  animation: blob-float 20s infinite alternate ease-in-out;
  pointer-events: none;
}

@keyframes blob-float {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(10vw, 10vh) scale(1.1); }
  100% { transform: translate(-10vw, -10vh) scale(0.9); }
}

/* Custom Cursor - FULLY DISABLED */
.custom-cursor,
.cursor-dot,
#custom-cursor {
  display: none !important;
  visibility: hidden !important;
  opacity: 0 !important;
  pointer-events: none !important;
  width: 0 !important;
  height: 0 !important;
  position: fixed !important;
  z-index: -9999 !important;
}

.menu-toggle { display: none; }
.mobile-tab-bar { display: none; }

/* Navigation */
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background: var(--header-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: var(--glass-border);
}

nav .logo {
  font-weight: 800;
  color: var(--text);
  font-size: var(--text-xl);
  letter-spacing: 1px;
}

nav .logo span {
  color: var(--accent);
}

nav ul {
  list-style: none;
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
  max-width: 80%;
}

nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-speed);
}

nav a:hover {
  color: var(--accent);
}

/* Header/Hero Section */
header {
  padding: 6rem 2rem 4rem;
  text-align: center;
  position: relative;
}

header h1 {
  font-size: 3.5rem;
  font-weight: 800;
  background: linear-gradient(to right, var(--accent), var(--secondary));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1rem;
  letter-spacing: -1px;
}

header p {
  font-size: var(--text-lg);
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 2rem;
}

.badges {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.2rem;
  background: var(--card-bg);
  border: var(--glass-border);
  border-radius: 50px;
  font-size: var(--text-sm);
  font-weight: 500;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  color: var(--text);
}

/* Main Sections */
.section {
  max-width: 1200px;
  margin: 4rem auto;
  padding: 0 2rem;
}

.section-title {
  font-size: var(--text-xxl);
  font-weight: 700;
  margin-bottom: 2rem;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 40%;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
}

/* Bento Box Grid System */
.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: minmax(180px, auto);
  gap: 1.5rem;
}

.card {
  background: var(--card-bg);
  padding: 1.5rem;
  border-radius: 24px;
  border: var(--glass-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  box-shadow: var(--glass-shadow);
  transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  text-decoration: none;
  color: var(--text);
}

.card:hover {
  transform: translateY(-5px);
  background: var(--card-bg-hover);
  border: var(--glass-border-hover);
  box-shadow: var(--glass-shadow-hover);
}

.card a {
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.card img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  border-radius: 12px;
  margin-bottom: 1rem;
  transition: transform 0.5s ease;
}

.card:hover img {
  transform: scale(1.03);
}

.card strong {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--accent);
}

.card p {
  color: var(--text-muted);
  font-size: var(--text-sm);
  line-height: 1.5;
}

/* Bento Span Utilities for specific grids */
/* Bento grid: uniform card sizes for clean layout */
.bento-grid .card { grid-column: span 1; grid-row: span 1; }
.bento-grid .card img { height: 160px; }

@media (max-width: 900px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .bento-grid .card:nth-child(4n+1), .bento-grid .card:nth-child(4n+2), .bento-grid .card:nth-child(4n+3), .bento-grid .card:nth-child(4n+4) {
    grid-column: span 1;
    grid-row: span 1;
  }
  .bento-grid .card:nth-child(4n+1) img, .bento-grid .card:nth-child(4n+3) img { height: 140px; }
}

@media (max-width: 600px) {
  .cards { grid-template-columns: 1fr; }
}

/* Blog Cards */
.blog-posts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}
.blog-card {
  background: var(--card-bg);
  border-radius: 24px;
  overflow: hidden;
  border: var(--glass-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  transition: all var(--transition-speed);
}
.blog-card:hover {
  transform: translateY(-5px);
  border-color: rgba(56, 189, 248, 0.3);
}
.blog-image {
  height: 200px;
  background-size: cover;
  background-position: center;
}
.blog-content {
  padding: 1.5rem;
}
.blog-date {
  color: var(--accent);
  font-size: var(--text-xs);
  margin-bottom: 0.5rem;
  font-weight: 500;
}
.blog-title {
  font-size: var(--text-lg);
  margin-bottom: 1rem;
  font-weight: 600;
}
.read-more {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.read-more:hover {
  color: var(--secondary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.5rem;
  background: linear-gradient(135deg, var(--accent), var(--secondary));
  color: #fff;
  border: none;
  border-radius: 50px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-speed);
  text-decoration: none;
  gap: 0.5rem;
}
.btn:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(56, 189, 248, 0.4);
}
.btn-outline {
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
}
.btn-outline:hover {
  background: rgba(56, 189, 248, 0.1);
}

/* Skills Chart */
.skill-chart {
  background: var(--card-bg);
  border: var(--glass-border);
  border-radius: 24px;
  padding: 2rem;
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
}

.skill-container {
  margin-bottom: 1.5rem;
}
.skill-name {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  font-weight: 500;
}
.skill-bar {
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  overflow: hidden;
}
.skill-progress {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--secondary));
  border-radius: 4px;
}

/* Floating Elements (Socials, Toggles, etc) */
.social-icons {
  position: fixed;
  top: 50%;
  left: 16px;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  z-index: 90;
}
.social-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--card-bg);
  border: var(--glass-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  font-size: 1.1rem;
  transition: all 0.3s;
  text-decoration: none;
}
.social-icon:hover {
  background: var(--accent);
  color: #fff;
  transform: scale(1.1);
}

/* Floating Buttons - all glassmorphic circles */
.theme-toggle, .performance-toggle, .voice-assistant, .sound-toggle, .chatbot-toggle, .scroll-top-btn, .whatsapp-float, .contact-float {
  position: fixed;
  display: flex !important;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--card-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: var(--glass-border);
  color: var(--text);
  font-size: 1.1rem;
  z-index: 100;
  transition: all 0.3s ease;
  cursor: pointer;
  text-decoration: none;
  box-shadow: var(--glass-shadow);
}

.theme-toggle:hover, .performance-toggle:hover, .voice-assistant:hover, .sound-toggle:hover, .chatbot-toggle:hover, .scroll-top-btn:hover, .whatsapp-float:hover, .contact-float:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-2px) scale(1.05);
}

/* Right column - stacked neatly */
.theme-toggle       { bottom: 20px; right: 20px; }
.chatbot-toggle     { bottom: 72px; right: 20px; }
.scroll-top-btn     { bottom: 124px; right: 20px; }
.performance-toggle { top: 80px; right: 20px; }
.voice-assistant    { top: 132px; right: 20px; }
.sound-toggle       { top: 184px; right: 20px; }

/* Bottom-left - no overlap */
.whatsapp-float { bottom: 20px; left: 20px; }
.contact-float { 
  bottom: 20px; left: 72px; width: auto; 
  padding: 0 1rem; border-radius: 25px; font-size: 0.85rem;
}

/* Music Player - positioned bottom area, offset from floating buttons */
.music-player {
  position: fixed;
  bottom: 72px;
  left: 20px;
  background: var(--card-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: var(--glass-border);
  padding: 0.4rem 0.8rem;
  border-radius: 50px;
  display: flex !important;
  align-items: center;
  gap: 0.5rem;
  z-index: 100;
  box-shadow: var(--glass-shadow);
  max-width: 220px;
}
.music-control { background: none; border: none; color: var(--accent); font-size: 1rem; cursor: pointer; transition: color 0.2s; }
.music-control:hover { color: var(--secondary); }
.music-info { font-size: 0.8rem; font-weight: 500; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 120px; }
.music-player-mobile { display: none !important; }

/* Theme Selector */
.theme-selector {
  position: fixed;
  bottom: 80px;
  right: 80px;
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  border: var(--glass-border);
  border-radius: 16px;
  padding: 1rem;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
  z-index: 101;
  box-shadow: var(--glass-shadow);
}
.theme-option { width: 30px; height: 30px; border-radius: 50%; cursor: pointer; border: 2px solid transparent; transition: 0.2s; }
.theme-option:hover { transform: scale(1.1); border-color: #fff; }

/* Forms */
input, textarea, select {
  width: 100%;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  color: var(--text);
  font-family: var(--font-base);
  margin-bottom: 1rem;
  transition: border-color 0.3s;
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent);
}

/* Footer */
footer {
  text-align: center;
  padding: 3rem 2rem;
  margin-top: 4rem;
  border-top: var(--glass-border);
  color: var(--text-muted);
}

/* Code Editor */
.code-editor {
  background: rgba(15, 23, 42, 0.9);
  border-radius: 16px;
  border: var(--glass-border);
  overflow: hidden;
}
.code-editor-header {
  padding: 1rem;
  background: rgba(0, 0, 0, 0.2);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}
.code-editor-title {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--text-muted);
}
.code-editor-actions {
  display: flex;
  gap: 0.5rem;
}
.code-editor-action {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.code-editor-action.red { background: #ef4444; }
.code-editor-action.yellow { background: #f59e0b; }
.code-editor-action.green { background: #10b981; }
#editorContent {
  background: transparent;
  border: none;
  font-family: var(--font-mono);
  color: #e2e8f0;
  padding: 1.5rem;
  min-height: 250px;
  font-size: 14px;
}
.code-block {
  background: rgba(0, 0, 0, 0.5);
  border-radius: 12px;
  padding: 1.5rem;
  font-family: var(--font-mono);
  color: #10b981;
  margin-top: 1rem;
  min-height: 100px;
}

/* Modals & Chatbot Container */
#contactModal .modal-content, .chatbot-container {
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: var(--glass-border);
  border-radius: 24px;
}

#3d-container {
  background: var(--card-bg) !important;
  backdrop-filter: blur(var(--glass-blur));
  box-shadow: var(--glass-shadow);
  border: var(--glass-border) !important;
}

#premium-easter-egg {
  background: var(--card-bg) !important;
  backdrop-filter: blur(var(--glass-blur));
  border: var(--glass-border) !important;
  box-shadow: 0 0 20px rgba(255, 215, 0, 0.2);
}

/* Miscellaneous Overrides & Modal Fixes */

/* Contact Modal */
#contactModal {
  display: none;
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(5px);
  z-index: 10000;
}
#contactModal .modal-content {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 90%; max-width: 500px;
  padding: 2rem;
}
#contactModal .modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}
#contactModal .close-btn {
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
}
#contactModal .modal-logo {
  display: none; /* hide broken SVG logos */
}

/* Starry Night Background */
.starry-night {
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  z-index: -1; pointer-events: none;
}

/* Custom Cursor - only on hover devices */
@media (pointer: coarse) {
  .custom-cursor { display: none !important; }
}
#particles-js {
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  z-index: -1; pointer-events: none;
}

#console-easter-egg {
  position: fixed;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 80%; max-width: 600px;
  background: rgba(0, 0, 0, 0.9);
  color: #0f0; font-family: monospace;
  border: 1px solid #0f0;
  padding: 1rem;
  z-index: 9999;
  display: none;
  box-shadow: 0 0 20px rgba(0,255,0,0.2);
}

.email-subscription {
  position: fixed;
  bottom: 20px;
  left: 20px;
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  border: var(--glass-border);
  padding: 1.5rem;
  border-radius: 16px;
  z-index: 100;
  display: none;
  box-shadow: var(--glass-shadow);
}

.chatbot-container {
  display: none !important; /* overriden by JS inline style later if needed, but defaults to hidden */
}

/* Force visibility to prevent AOS from hiding elements permanently */
[data-aos] {
  opacity: 1 !important;
  transform: none !important;
  visibility: visible !important;
}

/* ========================================
   COMPREHENSIVE SECTION STYLING
   ======================================== */

/* --- Typed.js overflow control --- */
#typed {
  display: inline-block;
  max-width: 100%;
  overflow: hidden;
  white-space: nowrap;
  min-height: 1.6em;
}
.typed-cursor {
  color: var(--accent);
}

/* --- Testimonials Section --- */
.testimonials {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}
.testimonial {
  background: var(--card-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: var(--glass-border);
  border-radius: 20px;
  padding: 2rem;
  box-shadow: var(--glass-shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.testimonial:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}
.testimonial-content {
  font-style: italic;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 1.5rem;
  font-size: var(--text-md);
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.author-avatar {
  width: 56px !important;
  height: 56px !important;
  border-radius: 50% !important;
  object-fit: cover !important;
  border: 2px solid var(--accent) !important;
  flex-shrink: 0;
}
.author-info h4 {
  color: var(--accent);
  font-weight: 600;
  font-size: var(--text-md);
  margin-bottom: 0.15rem;
}
.author-info p {
  color: var(--text-muted);
  font-size: var(--text-sm);
  font-style: normal;
}

/* --- Memory Game Section --- */
#memory-game .memory-game,
#memoryGame {
  display: grid !important;
  grid-template-columns: repeat(4, 1fr) !important;
  gap: 1rem !important;
  max-width: 500px;
  margin: 2rem auto;
}
.memory-card,
#memoryGame > div {
  perspective: 1000px;
  background: transparent !important;
  border: none !important;
  backdrop-filter: none !important;
  box-shadow: none !important;
  cursor: pointer;
  aspect-ratio: 1;
}
.memory-card .card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.6s ease;
  transform-style: preserve-3d;
}
.memory-card.flipped .card-inner {
  transform: rotateY(180deg);
}
.memory-card .front,
.memory-card .back {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  display: flex !important;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--card-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: var(--glass-border);
  box-shadow: var(--glass-shadow);
}
.memory-card .front {
  transform: rotateY(180deg);
  background: rgba(56, 189, 248, 0.15);
  font-size: 2.5rem;
}
.memory-card .back {
  transform: rotateY(0deg);
  background: transparent;
  font-size: 2.5rem;
  font-weight: bold;
  color: var(--accent);
}
.memory-card:hover .back,
.memory-card:hover .front {
  box-shadow: 0 0 15px rgba(56, 189, 248, 0.4);
}

/* --- Content Boxes --- */
.content-box {
  background: var(--card-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: var(--glass-border);
  border-radius: 20px;
  padding: 2.5rem;
  box-shadow: var(--glass-shadow);
  margin-top: 1.5rem;
}
.header-box {
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.7), rgba(30, 41, 59, 0.6));
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-bottom: 2px solid var(--accent);
  border-radius: 24px;
  padding: 3rem;
  max-width: 800px;
  margin: 0 auto;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), inset 0 0 0 1px rgba(255, 255, 255, 0.05);
}

/* --- Guestbook Section --- */
.guestbook {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.guestbook-form {
  background: var(--card-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: var(--glass-border);
  border-radius: 20px;
  padding: 2rem;
  box-shadow: var(--glass-shadow);
}
.guestbook-form h3 {
  margin-bottom: 1rem;
  color: var(--accent);
}
.guestbook-form form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.guestbook-entries {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.guestbook-entry {
  background: var(--card-bg);
  backdrop-filter: blur(var(--glass-blur));
  border: var(--glass-border);
  border-radius: 16px;
  padding: 1.25rem;
  box-shadow: var(--glass-shadow);
  transition: transform 0.3s ease;
}
.guestbook-entry:hover {
  transform: translateY(-2px);
}
.entry-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}
.entry-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #fff;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.entry-name {
  font-weight: 600;
  color: var(--text);
}
.entry-date {
  font-size: var(--text-xs);
  color: var(--text-muted);
}
.entry-message {
  color: var(--text-muted);
  line-height: 1.6;
}

/* --- Editor Buttons --- */
.editor-buttons {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}
.editor-buttons .btn {
  font-size: 0.9rem;
}
.btn-clear {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text);
}
.btn-clear:hover {
  background: rgba(255, 255, 255, 0.2);
  box-shadow: none;
  opacity: 1;
}

/* --- AR Mirror Section --- */
.ar-mirror {
  background: var(--card-bg);
  backdrop-filter: blur(var(--glass-blur));
  border: var(--glass-border);
  border-radius: 20px;
  padding: 2rem;
  margin: 1.5rem 0;
  box-shadow: var(--glass-shadow);
  text-align: center;
}
.ar-mirror video,
.ar-mirror canvas {
  width: 100%;
  max-width: 480px;
  border-radius: 12px;
  border: var(--glass-border);
  display: block;
  margin: 1rem auto;
}
.ar-controls {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

/* --- 3D Model Section --- */
#model-viewer {
  background: var(--card-bg);
  backdrop-filter: blur(var(--glass-blur));
  border: var(--glass-border);
  border-radius: 20px;
  min-height: 300px;
  margin: 1.5rem 0;
  box-shadow: var(--glass-shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}
#model-viewer canvas {
  border-radius: 20px;
  max-width: 100%;
}

/* --- Easter Egg --- */
.easter-egg {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(10px);
  z-index: 10000;
  display: none;
  align-items: center;
  justify-content: center;
  overflow: auto;
}
.easter-egg.show {
  display: flex;
}
.easter-content {
  background: var(--card-bg);
  border: var(--glass-border);
  border-radius: 24px;
  padding: 2.5rem;
  max-width: 500px;
  width: 90%;
  text-align: center;
  position: relative;
  box-shadow: 0 0 40px rgba(56, 189, 248, 0.3);
}
.easter-content h2 {
  margin-bottom: 1rem;
  color: var(--accent);
}
.easter-stats {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin: 1.5rem 0;
  flex-wrap: wrap;
}
.easter-stats span {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: var(--text-sm);
  color: var(--text-muted);
}
.easter-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin: 1.5rem 0;
}
.feature-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.05);
  padding: 0.6rem 1rem;
  border-radius: 12px;
  font-size: var(--text-sm);
  color: var(--text);
}
.feature-item i {
  color: var(--accent);
}
.easter-code {
  background: rgba(0, 0, 0, 0.4);
  padding: 0.75rem;
  border-radius: 8px;
  margin: 1rem 0;
}
.easter-code code {
  color: #10b981;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
}
.easter-close {
  position: absolute;
  top: 12px; right: 12px;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: var(--text);
  width: 36px; height: 36px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
}
.easter-close:hover {
  background: var(--accent);
  color: #fff;
}

/* --- Chatbot Container --- */
.chatbot-container {
  position: fixed;
  bottom: 130px;
  right: 20px;
  width: 350px;
  max-height: 480px;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: var(--glass-border);
  border-radius: 20px;
  z-index: 101;
  display: none;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--glass-shadow-hover);
}
.chatbot-container.show {
  display: flex !important;
}
.chatbot-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  cursor: pointer;
}
.chatbot-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
}
.chatbot-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.4rem;
  cursor: pointer;
}
.chatbot-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-height: 300px;
}
.chatbot-messages .message {
  padding: 0.75rem 1rem;
  border-radius: 14px;
  font-size: var(--text-sm);
  line-height: 1.5;
  max-width: 85%;
}
.chatbot-messages .bot-message {
  background: rgba(56, 189, 248, 0.15);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}
.chatbot-messages .user-message {
  background: rgba(129, 140, 248, 0.2);
  align-self: flex-end;
  border-bottom-right-radius: 4px;
}
.chatbot-input {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.chatbot-input input {
  flex: 1;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 50px;
  padding: 0.6rem 1rem;
  color: var(--text);
  font-size: var(--text-sm);
  margin-bottom: 0;
}
.chatbot-input input:focus {
  outline: none;
  border-color: var(--accent);
}
.chatbot-input button {
  background: linear-gradient(135deg, var(--accent), var(--secondary));
  border: none;
  color: #fff;
  width: 36px; height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  transition: all 0.3s;
  flex-shrink: 0;
}
.chatbot-input button:hover {
  transform: scale(1.1);
}

/* --- Skill Section --- */
#skill canvas {
  max-width: 100% !important;
  height: auto !important;
}

/* --- Section Headings Universal --- */
.section-title {
  font-size: var(--text-xxl);
  font-weight: 800;
  color: var(--text);
  margin-bottom: 0.75rem;
}

/* --- Footer --- */
footer {
  padding: 3rem 2rem;
  text-align: center;
  border-top: var(--glass-border);
  color: var(--text-muted);
  margin-bottom: 0;
}
footer a {
  color: var(--accent);
}
footer i.fa-heart {
  color: #ef4444;
}
footer i.fa-coffee {
  color: var(--accent);
}

/* --- Visitor Counter --- */
.visitor-counter {
  position: fixed;
  top: 80px;
  left: 16px;
  background: var(--card-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: var(--glass-border);
  padding: 0.4rem 0.8rem;
  border-radius: 50px;
  font-size: var(--text-xs);
  color: var(--text-muted);
  z-index: 90;
  box-shadow: var(--glass-shadow);
}

/* ========================================
   END COMPREHENSIVE SECTION STYLING
   ======================================== */

/* Tablet breakpoint */
@media (max-width: 1024px) {
  .cards { grid-template-columns: repeat(3, 1fr); }
  .chatbot-container { width: 300px; }
  header h1 { font-size: 2.5rem; }
}

/* Mobile breakpoint */
@media (max-width: 768px) {
  .menu-toggle { display: block; font-size: 1.5rem; cursor: pointer; color: var(--text); }
  nav ul {
    position: fixed; top: 70px; left: 0; width: 100%; 
    background: var(--header-bg);
    flex-direction: column; padding: 2rem; 
    border-bottom: var(--glass-border);
    backdrop-filter: blur(10px); display: none;
    max-width: 100%; z-index: 99;
  }
  nav ul.show { display: flex; }
  
  /* Hide floating clutter on mobile */
  .social-icons { display: none !important; }
  .visitor-counter { display: none !important; }
  .music-player { display: none !important; }
  .performance-toggle { display: none !important; }
  .voice-assistant { display: none !important; }
  .sound-toggle { display: none !important; }
  .contact-float { display: none !important; }
  .scroll-top-btn { bottom: 72px !important; }
  .chatbot-toggle { bottom: 72px !important; right: 16px !important; }
  .theme-toggle { bottom: 72px !important; right: 64px !important; }
  .whatsapp-float { bottom: 72px !important; left: 16px !important; }
  
  /* Chatbot on mobile */
  .chatbot-container { 
    width: calc(100% - 2rem); left: 1rem; right: 1rem; 
    bottom: 130px; max-height: 60vh; 
  }
  
  /* Grid fixes */
  .cards { grid-template-columns: repeat(2, 1fr); }
  .testimonials { grid-template-columns: 1fr; }
  .easter-features { grid-template-columns: 1fr; }
  
  /* Header size */
  header { padding: 4rem 1.5rem 2rem; }
  header h1 { font-size: 2rem; }
  header p { font-size: var(--text-md); }
  .section { padding: 0 1rem; margin: 2rem auto; }
  .section-title { font-size: 1.5rem; }
  
  /* Body bottom padding for tab bar */
  body { padding-bottom: 70px; }
  footer { margin-bottom: 0; padding-bottom: 5rem; }
  
  /* Mobile tab bar */
  .mobile-tab-bar {
    display: flex; position: fixed; bottom: 0; left: 0; width: 100%;
    background: var(--header-bg); backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px); border-top: var(--glass-border);
    justify-content: space-around; padding: 0.6rem 0; z-index: 1000;
  }
  .mobile-tab-bar a {
    color: var(--text-muted); font-size: 0.65rem;
    display: flex; flex-direction: column; align-items: center; gap: 2px;
    text-decoration: none;
  }
  .mobile-tab-bar a i { font-size: 1.1rem; }
  .mobile-tab-bar a:hover { color: var(--accent); }
}

/* Small phone breakpoint */
@media (max-width: 480px) {
  .cards { grid-template-columns: 1fr; }
  .badges { flex-direction: column; align-items: center; }
  header h1 { font-size: 1.75rem; }
  nav .logo { font-size: 1.2rem; }
  .whatsapp-float { display: none !important; }
  .chatbot-toggle { right: 16px !important; }
  .theme-toggle { right: 60px !important; }
}


/* Elegant Multi-Themes for Premium Glassmorphism */
[data-theme="default"], [data-theme="cyberpunk"], [data-theme="neon"] {
  --bg: #0b0f19;
  --text: #f8fafc;
  --text-muted: #94a3b8;
  --accent: #38bdf8;
  --secondary: #818cf8;
  --card-bg: rgba(30, 41, 59, 0.4); 
  --card-bg-hover: rgba(30, 41, 59, 0.7);
  --header-bg: rgba(11, 15, 25, 0.8);
}

[data-theme="sunset"] {
  --bg: #1a0a0f; 
  --text: #fff1f2;
  --text-muted: #fecdd3;
  --accent: #fb7185;
  --secondary: #f43f5e;
  --card-bg: rgba(76, 29, 39, 0.4); 
  --card-bg-hover: rgba(76, 29, 39, 0.7);
  --header-bg: rgba(26, 10, 15, 0.8);
}

[data-theme="ocean"] {
  --bg: #042f2e; 
  --text: #f0fdfa;
  --text-muted: #99f6e4;
  --accent: #2dd4bf;
  --secondary: #0d9488;
  --card-bg: rgba(13, 80, 78, 0.4); 
  --card-bg-hover: rgba(13, 80, 78, 0.7);
  --header-bg: rgba(4, 47, 46, 0.8);
}

[data-theme="forest"] {
  --bg: #064e3b; 
  --text: #ecfdf5;
  --text-muted: #a7f3d0;
  --accent: #34d399;
  --secondary: #10b981;
  --card-bg: rgba(6, 90, 68, 0.4); 
  --card-bg-hover: rgba(6, 90, 68, 0.7);
  --header-bg: rgba(6, 78, 59, 0.8);
}

[data-theme="galaxy"] {
  --bg: #2e1065; 
  --text: #f5f3ff;
  --text-muted: #ddd6fe;
  --accent: #a78bfa;
  --secondary: #8b5cf6;
  --card-bg: rgba(60, 20, 130, 0.4); 
  --card-bg-hover: rgba(60, 20, 130, 0.7);
  --header-bg: rgba(46, 16, 101, 0.8);
}

[data-theme="golden"] {
  --bg: #3f2c00; 
  --text: #fefce8;
}

/* Elegant Multi-Themes for Premium Glassmorphism */
[data-theme="default"], [data-theme="cyberpunk"], [data-theme="neon"] {
  --bg: #0b0f19;
  --text: #f8fafc;
  --text-muted: #94a3b8;
  --accent: #38bdf8;
  --secondary: #818cf8;
  --card-bg: rgba(30, 41, 59, 0.4); 
  --card-bg-hover: rgba(30, 41, 59, 0.7);
  --header-bg: rgba(11, 15, 25, 0.8);
}

[data-theme="sunset"] {
  --bg: #1a0a0f; 
  --text: #fff1f2;
  --text-muted: #fecdd3;
  --accent: #fb7185;
  --secondary: #f43f5e;
  --card-bg: rgba(76, 29, 39, 0.4); 
  --card-bg-hover: rgba(76, 29, 39, 0.7);
  --header-bg: rgba(26, 10, 15, 0.8);
}

[data-theme="ocean"] {
  --bg: #042f2e; 
  --text: #f0fdfa;
  --text-muted: #99f6e4;
  --accent: #2dd4bf;
  --secondary: #0d9488;
  --card-bg: rgba(13, 80, 78, 0.4); 
  --card-bg-hover: rgba(13, 80, 78, 0.7);
  --header-bg: rgba(4, 47, 46, 0.8);
}

[data-theme="forest"] {
  --bg: #064e3b; 
  --text: #ecfdf5;
  --text-muted: #a7f3d0;
  --accent: #34d399;
  --secondary: #10b981;
  --card-bg: rgba(6, 90, 68, 0.4); 
  --card-bg-hover: rgba(6, 90, 68, 0.7);
  --header-bg: rgba(6, 78, 59, 0.8);
}

[data-theme="galaxy"] {
  --bg: #2e1065; 
  --text: #f5f3ff;
  --text-muted: #ddd6fe;
  --accent: #a78bfa;
  --secondary: #8b5cf6;
  --card-bg: rgba(60, 20, 130, 0.4); 
  --card-bg-hover: rgba(60, 20, 130, 0.7);
  --header-bg: rgba(46, 16, 101, 0.8);
}

[data-theme="golden"] {
  --bg: #3f2c00; 
  --text: #fefce8;
  --text-muted: #fef08a;
  --accent: #facc15;
  --secondary: #eab308;
  --card-bg: rgba(100, 70, 0, 0.4); 
  --card-bg-hover: rgba(100, 70, 0, 0.7);
  --header-bg: rgba(63, 44, 0, 0.8);
}

/* --- Accordion (Details & Summary) --- */
details {
  background: var(--card-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: var(--glass-border);
  border-radius: 12px;
  margin-bottom: 1rem;
  overflow: hidden;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

details summary {
  padding: 1.25rem 1.5rem;
  font-weight: 600;
  font-size: 1.05rem;
  cursor: pointer;
  list-style: none; /* Hide default arrow */
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
  transition: background 0.3s ease;
}

details summary::-webkit-details-marker {
  display: none;
}

details summary:hover {
  background: rgba(255, 255, 255, 0.08);
}

details summary::after {
  content: '\f107'; /* FontAwesome angle-down */
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  transition: transform 0.3s ease;
  color: var(--primary);
}

details[open] {
  background: rgba(30, 41, 59, 0.6);
  box-shadow: var(--glass-shadow);
  border-color: rgba(56, 189, 248, 0.3);
}

details[open] summary {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(56, 189, 248, 0.1);
}

details[open] summary::after {
  transform: rotate(180deg);
}

.accordion-body {
  padding: 1.5rem;
  line-height: 1.6;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.accordion-body h3 {
  color: var(--text);
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
  font-size: 1.1rem;
}

.accordion-body p.code {
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1rem;
  border-radius: 8px;
  font-family: 'Courier New', Courier, monospace;
  color: #38bdf8;
  margin-bottom: 1rem;
  overflow-x: auto;
}

.accordion-body pre.code {
  background: rgba(15, 23, 42, 0.8) !important;
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1rem;
  border-radius: 8px;
  font-family: 'Courier New', Courier, monospace;
  color: #a5b4fc !important;
  margin-bottom: 1rem;
  overflow-x: auto;
}