/* =========================
   VARIABLES AND THEMES
========================= */
:root {
  /* Base Colors */
  --primary: #4cc9f0;
  --primary-dark: #3a86ff;
  --secondary: #f72585;
  --secondary-dark: #b5179e;
  --accent: #7209b7;
  
  /* Text Colors */
  --text-primary: #f8f9fa;
  --text-secondary: #e9ecef;
  --text-tertiary: #adb5bd;
  --text-muted: #6c757d;
  
  /* Background Colors */
  --bg-primary: #121420;
  --bg-secondary: #1b1f3a;
  --bg-card: #252a46;
  --bg-element: #2f3561;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--primary), var(--primary-dark));
  --gradient-secondary: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
  --gradient-accent: linear-gradient(135deg, var(--secondary), var(--accent));
  --gradient-bg: linear-gradient(135deg, #121420, #1b1f3a);
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.2);
  --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-focus: 0 0 0 3px rgba(76, 201, 240, 0.25);
  --shadow-glow: 0 0 15px rgba(76, 201, 240, 0.5);
  
  /* Borders */
  --border-color: rgba(255, 255, 255, 0.1);
  --border-radius-sm: 4px;
  --border-radius: 8px;
  --border-radius-lg: 12px;
  --border-radius-xl: 16px;
  --border-radius-full: 9999px;
  
  /* Typography */
  --font-sans: 'Montserrat', sans-serif;
  --font-heading: 'Raleway', sans-serif;
  --font-mono: monospace;
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-8: 3rem;
  --space-10: 4rem;
  
  /* Animation */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  --transition-bouncy: 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Z-Index */
  --z-below: -1;
  --z-normal: 1;
  --z-above: 10;
  --z-top: 100;
  --z-modal: 1000;
  --z-popover: 1100;
  --z-max: 9999;
}

/* Theme: Pulse (Default) */
.theme-pulse {
  --primary: #4cc9f0;
  --primary-dark: #3a86ff;
  --secondary: #f72585;
  --secondary-dark: #b5179e;
  --accent: #7209b7;
  --bg-primary: #121420;
  --bg-secondary: #1b1f3a;
  --bg-card: #252a46;
  --bg-element: #2f3561;
  --gradient-primary: linear-gradient(135deg, var(--primary), var(--primary-dark));
  --gradient-secondary: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
}

/* Theme: Neon */
.theme-neon {
  --primary: #00ffd5;
  --primary-dark: #09e5e1;
  --secondary: #ff2a6d;
  --secondary-dark: #d12c7b;
  --accent: #8c1eff;
  --bg-primary: #050819;
  --bg-secondary: #0a0e2c;
  --bg-card: #101433;
  --bg-element: #1a1e4a;
  --gradient-primary: linear-gradient(135deg, var(--primary), var(--primary-dark));
  --gradient-secondary: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
}

/* Theme: Gradient */
.theme-gradient {
  --primary: #6a00f4;
  --primary-dark: #480ca8;
  --secondary: #ff5e78;
  --secondary-dark: #f7176f;
  --accent: #00b4d8;
  --bg-primary: #0d1b2a;
  --bg-secondary: #1b263b;
  --bg-card: #242f4a;
  --bg-element: #2c3956;
  --gradient-primary: linear-gradient(135deg, var(--primary), var(--accent));
  --gradient-secondary: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
}

/* Theme: Minimal */
.theme-minimal {
  --primary: #5277f7;
  --primary-dark: #304ed4;
  --secondary: #f77052;
  --secondary-dark: #d45530;
  --accent: #52f7c6;
  --bg-primary: #0a0a0a;
  --bg-secondary: #141414;
  --bg-card: #212121;
  --bg-element: #2e2e2e;
  --gradient-primary: linear-gradient(135deg, var(--primary), var(--primary-dark));
  --gradient-secondary: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
}

/* Theme: Cyber */
.theme-cyber {
  --primary: #0ef;
  --primary-dark: #09c;
  --secondary: #f0e;
  --secondary-dark: #c09;
  --accent: #fc0;
  --bg-primary: #040718;
  --bg-secondary: #0d1033;
  --bg-card: #151d4e;
  --bg-element: #1d2868;
  --gradient-primary: linear-gradient(135deg, var(--primary), var(--primary-dark));
  --gradient-secondary: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
}

/* Light Mode */
.light-mode {
  --text-primary: #1e293b;
  --text-secondary: #334155;
  --text-tertiary: #64748b;
  --text-muted: #94a3b8;
  
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-card: #ffffff;
  --bg-element: #e2e8f0;
  
  --border-color: rgba(0, 0, 0, 0.1);
}

/* =========================
   BASE STYLES
========================= */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
  width: 100%;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: var(--space-5);
  position: relative;
}

:focus {
  outline: none;
  box-shadow: var(--shadow-focus);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.3;
  margin-bottom: var(--space-4);
  font-weight: var(--font-weight-bold);
}

p {
  margin-bottom: var(--space-4);
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

button, 
.btn {
  font-family: var(--font-sans);
  background: none;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

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

/* =========================
   BACKGROUND EFFECTS
========================= */
.background-effects {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-below);
  overflow: hidden;
}

.particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(circle at center, rgba(76, 201, 240, 0.1) 0%, transparent 70%);
}

.particles::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(circle at 20% 30%, rgba(114, 9, 183, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(247, 37, 133, 0.1) 0%, transparent 50%);
  opacity: 0.5;
}

.gradient-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-bg);
  opacity: 0.7;
}

.noise-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.05'/%3E%3C/svg%3E");
  opacity: 0.05;
  mix-blend-mode: overlay;
}

/* =========================
   CONTROLS PANEL
========================= */
.controls-panel {
  position: fixed;
  top: var(--space-4);
  right: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  z-index: var(--z-above);
}

.theme-selector {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.theme-icon-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--text-primary);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-fast);
}

.theme-icon-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--primary);
}

.light-icon, .dark-icon {
  position: absolute;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.light-icon {
  opacity: 0;
  transform: scale(0.5);
}

.dark-icon {
  opacity: 1;
  transform: scale(1);
}

.light-mode .light-icon {
  opacity: 1;
  transform: scale(1);
}

.light-mode .dark-icon {
  opacity: 0;
  transform: scale(0.5);
}

.theme-dropdown, .lang-selector {
  position: relative;
}

.dropdown-btn, .lang-btn {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  color: var(--text-primary);
  font-size: 0.9rem;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-fast);
}

.dropdown-btn:hover, .lang-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--primary);
}

.dropdown-arrow {
  font-size: 1.2rem;
  transition: transform var(--transition-fast);
}

.dropdown-btn:hover .dropdown-arrow, 
.lang-btn:hover .dropdown-arrow {
  transform: rotate(180deg);
}

.dropdown-content, .lang-dropdown {
  position: absolute;
  top: 110%;
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  width: 150px;
  box-shadow: var(--shadow-xl);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-fast);
  z-index: var(--z-above);
}

.theme-dropdown:hover .dropdown-content,
.lang-selector:hover .lang-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.theme-option, .lang-option {
  padding: var(--space-2) var(--space-3);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.theme-option:hover, .lang-option:hover {
  background: var(--bg-element);
  color: var(--primary);
}

.current-theme, .current-lang {
  font-weight: var(--font-weight-medium);
}

.action-buttons {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.action-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--text-primary);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-fast);
}

.action-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--primary);
}

/* =========================
   CARD CONTAINER & 3D EFFECT
========================= */
.card-container {
  width: 100%;
  max-width: 1100px;
  perspective: 2000px;
  margin: var(--space-8) auto;
}

.card-3d-wrapper {
  width: 100%;
  height: 600px;
  position: relative;
  transform-style: preserve-3d;
  transition: transform var(--transition-slow);
}

.card-3d-wrapper.flipped {
  transform: rotateY(180deg);
}

.card-front, .card-back {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  backface-visibility: hidden;
  transform-style: preserve-3d;
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: var(--space-6);
}

.card-front {
  transform: rotateY(0deg);
  display: flex;
  flex-direction: column;
}

.card-back {
  transform: rotateY(180deg);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Card Header */
.card-header {
  margin-bottom: var(--space-5);
}

.profile-section {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.profile-image {
  position: relative;
  flex-shrink: 0;
  z-index: var(--z-normal);
}

.image-hexagon {
  width: 140px;
  height: 160px;
  position: relative;
}

.hex-top, .hex-middle, .hex-bottom {
  position: absolute;
  width: 100%;
  height: 100%;
}

.hex-middle {
  width: 140px;
  height: 140px;
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  background: var(--gradient-primary);
  padding: 5px;
}

.hex-middle img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
}

.status-indicator {
  position: absolute;
  bottom: -5px;
  right: -5px;
  display: flex;
  align-items: center;
  gap: var(--space-1);
  background: var(--bg-element);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--border-radius-full);
  font-size: 0.7rem;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.status-indicator.online .status-dot {
  background: #4caf50;
}

.status-indicator.offline .status-dot {
  background: #f44336;
}

.status-indicator.away .status-dot {
  background: #ff9800;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  position: relative;
}

.status-dot::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.4;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.6;
  }
  70% {
    transform: translate(-50%, -50%) scale(2);
    opacity: 0;
  }
  100% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0;
  }
}

.profile-info {
  flex: 1;
}

.profile-name {
  margin-bottom: var(--space-1);
  font-size: 2.4rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-fill-color: transparent;
  line-height: 1.2;
}

.profile-title {
  margin-bottom: var(--space-2);
  font-size: 1.2rem;
  color: var(--text-secondary);
  font-weight: var(--font-weight-semibold);
}

.profile-tagline {
  margin-bottom: var(--space-4);
  color: var(--text-tertiary);
  font-size: 1rem;
}

.profile-stats {
  display: flex;
  gap: var(--space-5);
  margin-top: var(--space-3);
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: var(--font-weight-bold);
  color: var(--primary);
  margin-bottom: var(--space-1);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Card Navigation */
.card-nav {
  display: flex;
  background: var(--bg-element);
  border-radius: var(--border-radius);
  margin-bottom: var(--space-5);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-2);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  color: var(--text-secondary);
}

.nav-item i {
  font-size: 1.2rem;
  margin-bottom: var(--space-1);
}

.nav-item span {
  font-size: 0.8rem;
  font-weight: var(--font-weight-medium);
}

.nav-item::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition-normal);
}

.nav-item:hover {
  color: var(--primary);
  background: rgba(255, 255, 255, 0.05);
}

.nav-item.active {
  color: var(--primary);
}

.nav-item.active::before {
  transform: scaleX(1);
}

/* Card Content */
.card-content {
  flex: 1;
  overflow: hidden;
  position: relative;
}

.content-section {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  padding: var(--space-4);
  opacity: 0;
  visibility: hidden;
  transform: translateX(20px);
  transition: all var(--transition-normal);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--primary) var(--bg-element);
}

.content-section::-webkit-scrollbar {
  width: 5px;
}

.content-section::-webkit-scrollbar-track {
  background: var(--bg-element);
  border-radius: var(--border-radius-full);
}

.content-section::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: var(--border-radius-full);
}

.content-section.active {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

.section-title {
  font-size: 1.6rem;
  margin-bottom: var(--space-5);
  position: relative;
  display: inline-block;
  padding-bottom: var(--space-2);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: var(--border-radius-full);
}

/* About Section */
.about-bio {
  margin-bottom: var(--space-5);
}

.about-bio p {
  font-size: 1rem;
  line-height: 1.7;
}

.social-platforms h4 {
  font-size: 1.1rem;
  margin-bottom: var(--space-3);
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.social-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--bg-element);
  border-radius: var(--border-radius);
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
  border: 1px solid var(--border-color);
}

.social-link.active {
  background: var(--gradient-primary);
  color: var(--text-primary);
}

.social-link.active:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.social-link.inactive {
  opacity: 0.6;
  cursor: not-allowed;
}

.social-link i {
  font-size: 1.2rem;
}

/* Services Section */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--space-5);
}

.service-card {
  background: var(--bg-element);
  border-radius: var(--border-radius-lg);
  padding: var(--space-5);
  transition: all var(--transition-normal);
  position: relative;
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-normal);
  z-index: -1;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.service-card:hover::before {
  opacity: 0.05;
}

.service-icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border-radius: var(--border-radius);
  margin-bottom: var(--space-4);
  color: var(--primary);
  font-size: 1.8rem;
  transition: all var(--transition-normal);
  border: 1px solid var(--border-color);
}

.service-card:hover .service-icon {
  color: var(--text-primary);
  background: var(--gradient-primary);
  transform: scale(1.1);
}

.service-card h4 {
  font-size: 1.2rem;
  margin-bottom: var(--space-3);
}

.service-card p {
  color: var(--text-tertiary);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* Skills Section */
.skills-categories {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
  overflow-x: auto;
  padding-bottom: var(--space-2);
  scrollbar-width: none;
}

.skills-categories::-webkit-scrollbar {
  display: none;
}

.skill-category {
  padding: var(--space-2) var(--space-4);
  background: var(--bg-element);
  border-radius: var(--border-radius-full);
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  border: 1px solid var(--border-color);
  white-space: nowrap;
}

.skill-category:hover {
  transform: translateY(-2px);
}

.skill-category.active {
  background: var(--gradient-primary);
  color: var(--text-primary);
}

.skills-display {
  position: relative;
  min-height: 300px;
}

.skills-group {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-normal);
}

.skills-group.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.skill-item {
  margin-bottom: var(--space-4);
}

.skill-info {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--space-2);
}

.skill-name {
  font-weight: var(--font-weight-medium);
}

.skill-level {
  color: var(--primary);
  font-weight: var(--font-weight-semibold);
}

.skill-bar {
  width: 100%;
  height: 8px;
  background: var(--bg-element);
  border-radius: var(--border-radius-full);
  overflow: hidden;
}

.skill-progress {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--border-radius-full);
  width: 0;
  transition: width 1s ease-in-out;
}

/* Portfolio Section */
.portfolio-filters {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
  overflow-x: auto;
  padding-bottom: var(--space-2);
  scrollbar-width: none;
}

.portfolio-filters::-webkit-scrollbar {
  display: none;
}

.filter-btn {
  padding: var(--space-2) var(--space-4);
  background: var(--bg-element);
  border-radius: var(--border-radius-full);
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  border: 1px solid var(--border-color);
  white-space: nowrap;
}

.filter-btn:hover {
  transform: translateY(-2px);
}

.filter-btn.active {
  background: var(--gradient-primary);
  color: var(--text-primary);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-5);
}

.portfolio-item {
  position: relative;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-normal);
  aspect-ratio: 16 / 12;
}

.portfolio-item:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
}

.portfolio-img {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.portfolio-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.portfolio-item:hover .portfolio-img img {
  transform: scale(1.1);
}

.portfolio-info {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: var(--space-4);
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  color: white;
  transform: translateY(100%);
  transition: transform var(--transition-normal);
}

.portfolio-item:hover .portfolio-info {
  transform: translateY(0);
}

.portfolio-info h4 {
  font-size: 1.2rem;
  margin-bottom: var(--space-1);
}

.portfolio-info p {
  font-size: 0.9rem;
  margin-bottom: var(--space-2);
  opacity: 0.9;
}

.portfolio-tags {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.tag {
  padding: 2px var(--space-2);
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--border-radius-sm);
  font-size: 0.7rem;
}

.view-details-btn {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-card);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  opacity: 0;
  transform: translateY(-10px);
  transition: all var(--transition-normal);
  border: 1px solid var(--border-color);
}

.portfolio-item:hover .view-details-btn {
  opacity: 1;
  transform: translateY(0);
}

.view-details-btn:hover {
  background: var(--gradient-primary);
  color: white;
}

/* Contact Section */
.contact-container {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-5);
}

.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-4);
}

.contact-method {
  background: var(--bg-element);
  border-radius: var(--border-radius);
  padding: var(--space-4);
  transition: all var(--transition-normal);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.contact-method:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.method-icon {
  width: 40px;
  height: 40px;
  background: var(--bg-card);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1.2rem;
  flex-shrink: 0;
  border: 1px solid var(--border-color);
}

.contact-method:hover .method-icon {
  background: var(--gradient-primary);
  color: var(--text-primary);
}

.method-details {
  flex: 1;
}

.method-details h4 {
  font-size: 1rem;
  margin-bottom: var(--space-1);
}

.method-details p {
  font-size: 0.9rem;
  color: var(--text-tertiary);
  margin-bottom: var(--space-2);
}

.method-action {
  font-size: 0.8rem;
  color: var(--primary);
  position: relative;
  display: inline-block;
}

.method-action::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-fast);
}

.method-action:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.contact-form-container {
  background: var(--bg-element);
  border-radius: var(--border-radius-lg);
  padding: var(--space-5);
  border: 1px solid var(--border-color);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-group label {
  font-size: 0.9rem;
  font-weight: var(--font-weight-medium);
}

.form-group input, .form-group textarea, .form-group select {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--space-3);
  color: var(--text-primary);
  transition: all var(--transition-fast);
  font-family: var(--font-sans);
  font-size: 0.9rem;
}

.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  border-color: var(--primary);
  box-shadow: var(--shadow-focus);
}

.submit-btn {
  padding: var(--space-3) var(--space-4);
  background: var(--gradient-primary);
  color: var(--text-primary);
  border-radius: var(--border-radius);
  font-weight: var(--font-weight-medium);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  transition: all var(--transition-fast);
  margin-top: var(--space-2);
}

.submit-btn:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.submit-btn i {
  font-size: 1.2rem;
}

/* Action Icons */
.action-icons {
  position: fixed;
  left: var(--space-4);
  bottom: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  z-index: var(--z-above);
}

.action-icon {
  width: 50px;
  height: 50px;
  border-radius: var(--border-radius-full);
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1.4rem;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-normal);
  border: 1px solid var(--border-color);
}

.action-icon:hover {
  transform: scale(1.1);
  background: var(--gradient-primary);
  color: var(--text-primary);
}

/* QR Code Section */
.qr-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-6);
  gap: var(--space-5);
}

.qr-container {
  width: 200px;
  height: 200px;
  background: white;
  padding: var(--space-3);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
}

.flip-btn {
  padding: var(--space-3) var(--space-4);
  background: var(--gradient-primary);
  color: var(--text-primary);
  border-radius: var(--border-radius);
  font-weight: var(--font-weight-medium);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  transition: all var(--transition-fast);
}

.flip-btn:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

/* Modals */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(5px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal.open {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--bg-card);
  border-radius: var(--border-radius-lg);
  padding: var(--space-6);
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  position: relative;
  border: 1px solid var(--border-color);
}

.close-modal {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-tertiary);
  transition: color var(--transition-fast);
}

.close-modal:hover {
  color: var(--primary);
}

.qr-modal-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-5);
  text-align: center;
}

.qr-display {
  width: 200px;
  height: 200px;
  background: white;
  padding: var(--space-3);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
}

.share-options {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
}

.share-option {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--bg-element);
  border-radius: var(--border-radius);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.share-option:hover {
  background: var(--gradient-primary);
  color: var(--text-primary);
  transform: translateY(-2px);
}

.portfolio-modal-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

.portfolio-modal-content img {
  width: 100%;
  border-radius: var(--border-radius);
}

.model-container {
  height: 400px;
  position: relative;
  border-radius: var(--border-radius);
  overflow: hidden;
  background: var(--bg-element);
}

#3d-model {
  width: 100%;
  height: 100%;
}

.model-controls {
  position: absolute;
  bottom: var(--space-4);
  left: 0;
  width: 100%;
  display: flex;
  justify-content: center;
  gap: var(--space-3);
}

.model-btn {
  padding: var(--space-2) var(--space-3);
  background: var(--bg-card);
  border-radius: var(--border-radius);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  transition: all var(--transition-fast);
  border: 1px solid var(--border-color);
}

.model-btn:hover {
  background: var(--primary);
  color: var(--text-primary);
}

.customize-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.customize-section {
  margin-bottom: var(--space-3);
}

.customize-section h4 {
  margin-bottom: var(--space-3);
  font-size: 1.1rem;
}

.theme-options, .effect-options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.theme-preview, .effect-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.theme-preview:hover, .effect-option:hover {
  transform: translateY(-3px);
}

.preview-color {
  width: 60px;
  height: 60px;
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
}

.pulse-preview {
  background: linear-gradient(135deg, #4cc9f0, #3a86ff);
}

.neon-preview {
  background: linear-gradient(135deg, #00ffd5, #09e5e1);
}

.gradient-preview {
  background: linear-gradient(135deg, #6a00f4, #00b4d8);
}

.minimal-preview {
  background: linear-gradient(135deg, #5277f7, #304ed4);
}

.cyber-preview {
  background: linear-gradient(135deg, #0ef, #09c);
}

.particles-preview {
  background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='20' cy='20' r='2' fill='%234cc9f0'/%3E%3Ccircle cx='40' cy='30' r='2' fill='%234cc9f0'/%3E%3Ccircle cx='60' cy='20' r='2' fill='%234cc9f0'/%3E%3Ccircle cx='80' cy='30' r='2' fill='%234cc9f0'/%3E%3Ccircle cx='90' cy='50' r='2' fill='%234cc9f0'/%3E%3Ccircle cx='80' cy='70' r='2' fill='%234cc9f0'/%3E%3Ccircle cx='60' cy='80' r='2' fill='%234cc9f0'/%3E%3Ccircle cx='40' cy='70' r='2' fill='%234cc9f0'/%3E%3Ccircle cx='20' cy='80' r='2' fill='%234cc9f0'/%3E%3Ccircle cx='10' cy='50' r='2' fill='%234cc9f0'/%3E%3C/svg%3E");
  background-color: var(--bg-secondary);
}

.gradient-bg-preview {
  background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
}

.waves-preview {
  background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 50 C20 40, 40 30, 60 40, 80 50, 100 60, 100 50 L100 100 L0 100 Z' fill='%234cc9f0' opacity='0.2'/%3E%3Cpath d='M0 60 C20 50, 40 40, 60 50, 80 60, 100 70, 100 60 L100 100 L0 100 Z' fill='%234cc9f0' opacity='0.3'/%3E%3Cpath d='M0 70 C20 60, 40 50, 60 60, 80 70, 100 80, 100 70 L100 100 L0 100 Z' fill='%234cc9f0' opacity='0.4'/%3E%3C/svg%3E");
  background-color: var(--bg-secondary);
}

.mesh-preview {
  background-image: radial-gradient(circle at 20% 30%, rgba(114, 9, 183, 0.3) 0%, transparent 50%), radial-gradient(circle at 80% 70%, rgba(247, 37, 133, 0.3) 0%, transparent 50%);
  background-color: var(--bg-secondary);
}

.minimal-bg-preview {
  background-color: var(--bg-secondary);
}

.color-options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

.color-option {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 2px solid var(--border-color);
}

.color-option:hover, .color-option.active {
  transform: scale(1.2);
  box-shadow: 0 0 0 2px white;
}

.color-picker-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--space-1);
}

#custom-color {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  overflow: hidden;
  cursor: pointer;
  border: none;
  background: none;
}

.color-picker-wrapper label {
  font-size: 0.8rem;
  color: var(--text-tertiary);
}

.save-custom-btn {
  padding: var(--space-3) var(--space-4);
  background: var(--gradient-primary);
  color: var(--text-primary);
  border-radius: var(--border-radius);
  font-weight: var(--font-weight-medium);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  transition: all var(--transition-fast);
  margin-top: var(--space-2);
  align-self: center;
}

.save-custom-btn:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.print-format-options {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
  justify-content: center;
}

.format-option {
  padding: var(--space-2) var(--space-3);
  background: var(--bg-element);
  border-radius: var(--border-radius);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  transition: all var(--transition-fast);
  border: 1px solid var(--border-color);
}

.format-option:hover, .format-option.active {
  background: var(--gradient-primary);
  color: var(--text-primary);
}

.print-preview-container {
  background: white;
  border-radius: var(--border-radius);
  padding: var(--space-5);
  margin-bottom: var(--space-5);
  color: black;
}

.print-action-btn {
  padding: var(--space-3) var(--space-4);
  background: var(--gradient-primary);
  color: var(--text-primary);
  border-radius: var(--border-radius);
  font-weight: var(--font-weight-medium);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  transition: all var(--transition-fast);
  margin: 0 auto;
}

.print-action-btn:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

/* Custom Cursor */
.cursor, .cursor-follower {
  position: fixed;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--primary);
  pointer-events: none;
  opacity: 0;
  z-index: var(--z-max);
  transition: opacity var(--transition-normal);
}

.cursor {
  mix-blend-mode: difference;
  transform: translate(-50%, -50%);
  z-index: var(--z-max);
}

.cursor-follower {
  width: 30px;
  height: 30px;
  background-color: transparent;
  border: 1px solid var(--primary);
  transition: transform var(--transition-normal), opacity var(--transition-normal), width var(--transition-fast), height var(--transition-fast);
  transform: translate(-50%, -50%) scale(1);
}

body:hover .cursor, 
body:hover .cursor-follower {
  opacity: 1;
}

/* Loading Screen */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-max);
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.loading-screen.hide {
  opacity: 0;
  visibility: hidden;
}

.loader {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}

.loader-svg {
  width: 80px;
  height: 80px;
}

.loader-circle {
  fill: none;
  stroke: var(--primary);
  stroke-width: 4;
  stroke-linecap: round;
  stroke-dasharray: 314;
  stroke-dashoffset: 314;
  animation: loader-animation 2s linear infinite;
}

@keyframes loader-animation {
  0% {
    stroke-dashoffset: 314;
  }
  50% {
    stroke-dashoffset: 0;
  }
  100% {
    stroke-dashoffset: -314;
  }
}

.loader-text {
  font-family: var(--font-mono);
  color: var(--text-secondary);
  letter-spacing: 2px;
}

/* Print Styles */
@media print {
  body {
    background: white !important;
    color: black !important;
  }
  
  .controls-panel,
  .background-effects,
  .theme-selector,
  .lang-selector,
  .action-buttons,
  .card-nav,
  .action-icons,
  .custom-cursor {
    display: none !important;
  }
  
  .card-container {
    width: 100% !important;
    margin: 0 !important;
    height: auto !important;
    perspective: none !important;
  }
  
  .card-3d-wrapper {
    transform: none !important;
    height: auto !important;
  }
  
  .card-front {
    position: relative !important;
    box-shadow: none !important;
    border: 1px solid #eee !important;
    background: white !important;
    color: black !important;
  }
  
  .card-back {
    display: none !important;
  }
  
  .content-section {
    position: relative !important;
    opacity: 1 !important;
    visibility: visible !important;
    transform: none !important;
    height: auto !important;
    overflow: visible !important;
    page-break-inside: avoid !important;
  }
  
  .profile-name {
    color: black !important;
    -webkit-text-fill-color: black !important;
  }
  
  .skill-progress,
  .meter-fill {
    border: 1px solid #ccc !important;
  }
  
  a {
    color: black !important;
  }
  
  a::after {
    content: " (" attr(href) ") ";
    font-size: 0.8em;
  }
}

/* Responsive Styles */
/* Tablet */
@media screen and (max-width: 992px) {
  .card-container {
    margin-top: var(--space-8);
    margin-bottom: var(--space-8);
  }
  
  .card-3d-wrapper {
    height: auto;
    min-height: 700px;
  }
  
  .profile-section {
    flex-direction: column;
    text-align: center;
    gap: var(--space-4);
  }
  
  .profile-stats {
    justify-content: center;
  }
  
  .services-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  }
  
  .portfolio-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  }
  
  .contact-container {
    grid-template-columns: 1fr;
  }
  
  .contact-info {
    order: 2;
  }
  
  .contact-form-container {
    order: 1;
  }
}

/* Mobile */
@media screen and (max-width: 768px) {
  body {
    padding: var(--space-3);
  }
  
  .controls-panel {
    top: var(--space-3);
    right: var(--space-3);
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: var(--space-2);
  }
  
  .card-3d-wrapper {
    min-height: 800px;
  }
  
  .card-front, .card-back {
    padding: var(--space-4);
  }
  
  .profile-name {
    font-size: 2rem;
  }
  
  .profile-title {
    font-size: 1.1rem;
  }
  
  .nav-item i {
    font-size: 1rem;
  }
  
  .nav-item span {
    font-size: 0.7rem;
  }
  
  .section-title {
    font-size: 1.4rem;
  }
  
  .service-card {
    padding: var(--space-4);
  }
  
  .service-icon {
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
  }
  
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
  
  .action-icons {
    left: var(--space-3);
    bottom: var(--space-3);
  }
  
  .action-icon {
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
  }
  
  .modal-content {
    padding: var(--space-4);
    width: 90%;
  }
  
  .close-modal {
    top: var(--space-3);
    right: var(--space-3);
  }
  
  /* Hide custom cursor on mobile */
  .cursor, .cursor-follower {
    display: none;
  }
}

/* Small Mobile */
@media screen and (max-width: 480px) {
  .card-3d-wrapper {
    min-height: 850px;
  }
  
  .profile-name {
    font-size: 1.8rem;
  }
  
  .profile-stats {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .stat-item {
    width: 33%;
  }
  
  .nav-item {
    padding: var(--space-2) var(--space-1);
  }
  
  .social-links {
    justify-content: center;
  }
  
  .skills-categories, .portfolio-filters {
    justify-content: flex-start;
    gap: var(--space-1);
  }
  
  .skill-category, .filter-btn {
    padding: var(--space-1) var(--space-2);
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .theme-dropdown .dropdown-content {
    width: 120px;
    right: -40px;
  }
}