:root {
  /* Colors */
  --primary: #42d392;
  --primary-dark: #42b883;
  --primary-accent: #647eff;

  /* Neutral Colors */
  --white: #ffffff;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --dark: #1a1a1a;

  /* Theme Colors */
  --bg-primary: var(--white);
  --bg-secondary: var(--gray-50);
  --bg-tertiary: var(--gray-100);
  --text-primary: var(--dark);
  --text-secondary: var(--gray-600);
  --text-tertiary: var(--gray-400);
  --border-color: var(--gray-200);
  --border-light: var(--gray-100);

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
    0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
    0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1),
    0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 35px 40px -8px rgba(0, 0, 0, 0.1),
    0 20px 25px -10px rgba(0, 0, 0, 0.04);

  /* Gradients */
  --gradient-primary: -webkit-linear-gradient(
    315deg,
    var(--primary) 25%,
    var(--primary-accent)
  );

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-4xl: 6rem;

  /* Typography */
  --font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;

  /* Border Radius */
  --radius: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition: 250ms ease;
}

/* Dark Theme */
[data-theme="dark"] {
  --bg-primary: var(--dark);
  --bg-secondary: var(--gray-800);
  --bg-tertiary: var(--gray-700);
  --text-primary: var(--white);
  --text-secondary: var(--gray-300);
  --text-tertiary: var(--gray-400);
  --border-color: var(--gray-700);
  --border-light: var(--gray-600);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  transition: background-color var(--transition), color var(--transition);
  overflow-x: hidden;
  position: relative;
}

.backdrop {
  opacity: 1;
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  backdrop-filter: blur(5px);
  background-color: rgba(255, 255, 255, 0.3);
  z-index: 2000;
  transition: opacity 0.3s ease-in;
  pointer-events: none;
}

[data-theme="dark"] .backdrop {
  background-color: rgba(0, 0, 0, 0.3);
}

/* Background Elements */
.bg-elements {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
}

.floating-shapes {
  position: absolute;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.shape {
  position: absolute;
  border-radius: var(--radius-full);
  background: -webkit-linear-gradient(
    315deg,
    rgba(66, 211, 146, 0.085) 25%,
    rgba(100, 126, 255, 0.085)
  );
  animation: float 20s infinite ease-in-out;
}

[data-theme="dark"] .shape {
  background: -webkit-linear-gradient(
    315deg,
    rgba(66, 211, 146, 0.045) 25%,
    rgba(100, 126, 255, 0.045)
  );
}

.shape-1 {
  width: 300px;
  height: 300px;
  top: 10%;
  left: -5%;
  animation-delay: 0s;
}

.shape-2 {
  width: 200px;
  height: 200px;
  top: 60%;
  right: -5%;
  animation-delay: -5s;
}

.shape-3 {
  width: 150px;
  height: 150px;
  top: 30%;
  right: 20%;
  animation-delay: -10s;
}

.shape-4 {
  width: 100px;
  height: 100px;
  bottom: 20%;
  left: 10%;
  animation-delay: -15s;
}

.shape-5 {
  width: 250px;
  height: 250px;
  bottom: -10%;
  right: 30%;
  animation-delay: -7s;
}

.grid-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: linear-gradient(
      rgba(99, 102, 241, 0.060) 1px,
      transparent 1px
    ),
    linear-gradient(90deg, rgba(99, 102, 241, 0.060) 1px, transparent 1px);
  background-size: 50px 50px;
  animation: gridMove 30s linear infinite;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px) rotate(0deg);
  }

  33% {
    transform: translateY(-30px) rotate(120deg);
  }

  66% {
    transform: translateY(20px) rotate(240deg);
  }
}

@keyframes gridMove {
  0% {
    transform: translate(0, 0);
  }

  100% {
    transform: translate(50px, 50px);
  }
}

/* Container */
.container {
  max-width: 100%;
  margin: 0 auto;
  box-sizing: border-box;
  overflow-x: hidden;
  padding: 0 calc(var(--space-4xl) - 2rem) var(--space-4xl);
}

.footer > .container {
  padding: 0 calc(var(--space-4xl) - 2rem) 0;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: all var(--transition);
}

[data-theme="dark"] .navbar {
  background: rgba(26, 26, 26, 0.2);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.4);
  box-shadow: var(--shadow-sm);
}

[data-theme="dark"] .navbar.scrolled {
  background: rgba(26, 26, 26, 0.65);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 700;
  font-size: var(--font-size-lg);
  color: var(--primary-dark);
}

[data-theme="dark"] .nav-brand {
  color: var(--primary);
}

.brand-icon {
  font-size: var(--font-size-2xl);
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.7;
    transform: scale(1.2);
  }
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--space-xl);
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--font-size-md);
  transition: color var(--transition);
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary-dark);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 0;
  height: 2px;
  border-radius: 20px;
  background: var(--gradient-primary);
  transition: width var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.theme-toggle {
  width: 40px;
  height: 40px;
  border: none;
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.theme-toggle:hover,
.theme-toggle:hover .theme-icon::before {
  background: var(--bg-tertiary);
}

[data-theme="dark"] .theme-toggle:hover .theme-icon::before {
  background: var(--text-primary);
}

.theme-icon {
  width: 20px;
  height: 20px;
  background: var(--dark);
  border-radius: var(--radius-full);
  position: relative;
  transition: all var(--transition);
}

.theme-icon::before {
  content: "";
  position: absolute;
  top: -2px;
  right: -2px;
  width: 15px;
  height: 15px;
  background: var(--bg-secondary);
  border-radius: var(--radius-full);
  transition: all var(--transition);
}

[data-theme="dark"] .theme-icon {
  background: transparent;
  box-shadow: inset 0 0 0 2px var(--text-primary);
}

[data-theme="dark"] .theme-icon::before {
  transform: translate(-5px, 4.5px) scale(0.6);
  background: var(--text-primary);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  width: 40px;
  height: 40px;
  justify-content: center;
  align-items: center;
  transition: all var(--transition);
}

.nav-toggle:hover {
  background: var(--bg-tertiary);
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  border-radius: 20px;
  background: var(--primary-dark);
  transition: all var(--transition);
}

[data-theme="dark"] .nav-toggle span {
  background: var(--primary);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  padding: var(--space-4xl) 0 0;
  position: relative;
}

.hero-content {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
  animation: slideInUp 0.8s ease-out;
}

.status-dot {
  width: 8px;
  height: 8px;
  background: var(--primary-dark);
  border-radius: var(--radius-full);
  animation: pulse 2s infinite;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
}

.title-line {
  display: block;
  color: var(--text-secondary);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 500;
  animation: slideInUp 0.8s ease-out 0.2s both;
  margin-bottom: 10px;
}

.title-name {
  display: block;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: clamp(2.2rem, 3.8vw, 4rem);
  animation: slideInUp 0.8s ease-out 0.4s both;
  margin-bottom: 15px;
}

.title-role {
  display: block;
  color: var(--text-secondary);
  font-size: clamp(1.2rem, 1.8vw, 1.8rem);
  font-weight: 600;
  animation: slideInUp 0.8s ease-out 0.6s both;
}

.hero-description {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-xl);
  width: 100%;
  animation: slideInUp 0.8s ease-out 0.8s both;
}

.hero-stats {
  display: flex;
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
  animation: slideInUp 0.8s ease-out 1s both;
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  font-weight: 500;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  animation: slideInUp 0.8s ease-out 1.2s both;
}

.hero-visual {
  margin: 0 auto;
  perspective: 1500px;
  animation: slideInRight 0.8s ease-out 0.4s both;
}

.profile-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  box-shadow: var(--shadow-xl);
  width: 320px;
  transform: rotateY(-15deg) rotateX(5deg);
  transition: all 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}

.profile-card:hover {
  transform: rotateY(0deg) rotateX(0deg) translateY(-10px) scale(1.05);
  box-shadow: var(--shadow-2xl);
}

.profile-header {
  background: var(--gradient-primary);
  color: var(--white);
  padding: var(--space-md);
  margin: calc(-1 * var(--space-xl)) calc(-1 * var(--space-xl)) var(--space-lg);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  text-align: center;
  font-weight: 600;
  font-size: var(--font-size-base);
  letter-spacing: 0.5px;
}

.profile-image {
  position: relative;
  width: 200px;
  height: 200px;
  margin: 0 auto var(--space-lg);
}

.profile-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-xl);
  transition: transform 0.3s ease;
}

.profile-card:hover .profile-image img {
  transform: scale(1.05);
}

.tech-stack {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
}

.tech-item {
  background: linear-gradient(var(--bg-secondary), var(--bg-secondary)) padding-box, var(--gradient-primary) border-box;
  background-origin: border-box;
  background-clip: padding-box, border-box;
  border: 1px solid transparent;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius);
  text-align: center;
  position: relative;
  transition: all 0.3s ease;
  cursor: pointer;
}

.tech-item-text {
  color: var(--text-secondary);
  font-weight: 600;
  font-size: var(--font-size-sm);
}

.tech-item:hover {
  background: var(--gradient-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(66, 211, 146, 0.3);
}

.tech-item:hover .tech-item-text {
  color: var(--white);
}

.tech-item::before {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-3px);
  background: rgba(30, 41, 59, 0.95);
  color: white;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius);
  font-size: 11px;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  margin-bottom: 5px;
  z-index: 10;
}

.tech-item::after {
  content: "";
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 4px solid transparent;
  border-top-color: rgba(30, 41, 59, 0.95);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  margin-bottom: 1px;
}

.tech-item:hover::before,
.tech-item:hover::after {
  opacity: 1;
  visibility: visible;
}

[data-theme="dark"] .tech-item::before {
  background: rgba(255, 255, 255, 0.95);
  color: var(--dark);
}
[data-theme="dark"] .tech-item::after {
  border-top-color: rgba(255, 255, 255, 0.95);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-md);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: left 0.5s ease;
}

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

.btn-primary {
  background: var(--gradient-primary);
  color: var(--white);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-tertiary);
  transform: translateY(-2px);
}

/* Section Styles */
section {
  padding: calc(var(--space-4xl) - 1rem) 0 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-badge {
  display: inline-block;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-full);
  font-size: var(--font-size-md);
  font-weight: 500;
  color: var(--primary-dark);
  margin-bottom: var(--space-md);
}

[data-theme="dark"] .section-badge {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--primary);
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-md);
  line-height: 1.2;
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

/* About Section */
.about {
  background: var(--bg-secondary);
}

.about-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: var(--space-4xl);
  align-items: start;
}

.text-block {
  margin-bottom: var(--space-xl);
}

.text-block h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--primary-dark);
  margin-bottom: var(--space-md);
}

[data-theme="dark"] .text-block h3,
[data-theme="dark"] .skills-title {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-block p {
  color: var(--text-secondary);
  line-height: 1.7;
}

.skills-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--primary-dark);
  margin-bottom: var(--space-md);
}

.skills-overview {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.skill-category h4 {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.skill-tags span {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.education-timeline {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow);
}

.timeline-item {
  display: flex;
  gap: var(--space-md);
  position: relative;
}

.timeline-item:not(:last-child) {
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-xl);
}

.timeline-item:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 11px;
  top: 40px;
  bottom: -24px;
  width: 2px;
  background: var(--border-color);
}

.timeline-marker {
  width: 24px;
  height: 24px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.timeline-content h4 {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.timeline-content p {
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
}

.timeline-date {
  font-size: var(--font-size-sm);
  color: var(--primary-dark);
  font-weight: 600;
}

[data-theme="dark"] .timeline-date {
  color: var(--primary);
}

.timeline-status {
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
  font-style: italic;
}

/* Experience Section */
.experience-grid {
  display: grid;
  gap: var(--space-2xl);
  max-width: 800px;
  margin: 0 auto;
}

.experience-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  box-shadow: var(--shadow);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.experience-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
}

.experience-card:hover {
  transform: translateY(-4px) !important;
  box-shadow: var(--shadow-xl);
}

.experience-header {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.company-logo {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: var(--font-size-lg);
  flex-shrink: 0;
  box-shadow: var(--shadow-md);
}

.company-logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.experience-info h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.company {
  color: var(--primary-dark);
  font-weight: 500;
  margin-bottom: var(--space-xs);
}

[data-theme="dark"] .company {
  color: var(--primary);
}

.duration {
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
}

.experience-description p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.experience-description p > a, .achievement-list li > a {
  color: var(--primary-dark);
  text-decoration: underline;
}

[data-theme="dark"] .experience-description p > a,
[data-theme="dark"] .achievement-list li > a {
  color: var(--primary);
}

.achievement-list {
  list-style: none;
  margin-bottom: var(--space-lg);
}

.achievement-list li {
  position: relative;
  padding-left: var(--space-lg);
  margin-bottom: var(--space-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}

.achievement-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--primary-dark);
  font-weight: 600;
}

[data-theme="dark"] .achievement-list li::before {
  color: var(--primary);
}

.tech-used {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.tech-used span {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius);
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
}

/* Projects Section */
.projects {
  background: var(--bg-secondary);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.project-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  max-height: 45rem;
}

.project-card:hover {
  transform: translateY(-8px) !important;
  box-shadow: var(--shadow-xl);
}

.project-image {
  position: relative;
  height: 250px;
  overflow: hidden;
  background: var(--bg-tertiary);
}

.featured .project-image {
  height: 400px;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform var(--transition);
}

.project-content {
  flex: 1;
  padding: var(--space-xl) var(--space-xl) calc(var(--space-2xl) + 3rem);
  position: relative;
}

.project-content > .btn {
  position: absolute;
  bottom: 2rem;
  z-index: 1;
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  margin-bottom: var(--space-md);
}

.project-header h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
}

.project-type {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius);
  font-size: var(--font-size-xs);
  color: var(--primary-dark);
  font-weight: 500;
  text-align: center;
}

[data-theme="dark"] .project-type {
  color: var(--primary);
}

.project-description {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: 25px;
}

.project-tech span {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius);
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
}

/* Contact Section */
.contact-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  max-width: 600px;
  margin: 0 auto;
  padding: 0 1rem;
}

.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.5rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  color: var(--text-primary);
}

.contact-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.1),
    transparent
  );
  transition: left 0.5s ease;
}

.contact-card:hover::before {
  left: 100%;
}

.contact-card:hover {
  transform: scale(1.05) translateY(-3px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
  border-color: var(--primary);
}

.contact-card:focus {
  outline: 2px solid var(--primary-dark);
  outline-offset: 2px;
}

[data-theme="dark"] .contact-card:focus {
  outline: 2px solid var(--primary);
}

@keyframes contactRipple {
  to {
    transform: translate(-50%, -50%) scale(2);
    opacity: 0;
  }
}

.contact-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.75rem;
  font-size: 1.5rem;
  color: white;
  transition: all 0.3s ease;
  position: relative;
  z-index: 1;
}

.contact-card-icon.whatsapp {
  background: #25d366;
}

.contact-card-icon.email {
  background: #4285f4;
}

.contact-card-icon.linkedin {
  background: #0077b5;
}

.contact-card-icon.github {
  background: #333;
}

.contact-card:hover .contact-card-icon {
  transform: scale(1.1) rotate(5deg);
}

.contact-card-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: color 0.3s ease;
  text-align: center;
  position: relative;
  z-index: 1;
}

.contact-card:hover .contact-card-label {
  color: var(--primary-dark);
}

[data-theme="dark"] .contact-card:hover .contact-card-label {
  color: var(--primary);
}

[data-theme="dark"] .contact-card {
  background: var(--bg-tertiary);
  border-color: var(--border-color);
}

[data-theme="dark"] .contact-card:hover {
  border-color: var(--primary);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

/* Responsive untuk contact cards */
@media (max-width: 768px) {
  .contact-cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
    max-width: 400px;
  }

  .contact-card {
    padding: 1.25rem 0.75rem;
  }

  .contact-card-icon {
    width: 44px;
    height: 44px;
    font-size: 1.4rem;
  }

  .contact-card-label {
    font-size: 0.85rem;
  }
}

@media (max-width: 480px) {
  .contact-cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    max-width: 320px;
  }

  .contact-card {
    padding: 1rem 0.5rem;
  }

  .contact-card-icon {
    width: 40px;
    height: 40px;
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
  }

  .contact-card-label {
    font-size: 0.8rem;
  }

  .contact .section-title {
    font-size: 2rem;
  }

  .contact .section-subtitle {
    font-size: 1rem;
  }
}

@media (max-width: 360px) {
  .contact-cards {
    grid-template-columns: 1fr;
    max-width: 200px;
  }
}

/* Footer */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: var(--space-2xl) 0;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-text p {
  color: var(--text-secondary);
  font-size: var(--font-size-base);
  margin-bottom: var(--space-xs);
}

.footer-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: var(--font-size-base);
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--primary-dark);
}

[data-theme="dark"] .footer-links a:hover {
  color: var(--primary);
}

/* Animations */
@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Responsive Design */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-2xl);
  }

  .hero-stats {
    justify-content: center;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-visual {
    margin: 15px auto 0;
    perspective: 1500px;
    animation: slideInRight 0.8s ease-out 0.4s both;
  }

  .profile-card {
    transform: rotateX(15deg);
  }

  .about-content {
    grid-template-columns: 1fr .5fr;
    gap: var(--space-2xl);
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    flex-direction: column;
    padding: var(--space-lg);
    gap: var(--space-md);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
  }

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

  .nav-toggle {
    display: flex;
  }

  .scroll-progress {
    height: 5px !important;
  }

  .hero {
    min-height: max-content;
  }

  .hero-actions {
    flex-wrap: wrap;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .skills-overview {
    grid-template-columns: 1fr;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .project-metrics {
    justify-content: center;
  }

  .social-links {
    flex-wrap: wrap;
  }

  .footer-content {
    flex-direction: column;
    gap: var(--space-lg);
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-md) calc(var(--space-4xl) - 1rem);
  }

  .nav-container {
    padding: 0 var(--space-md);
  }

  .hero {
    padding: var(--space-4xl) 0 0;
  }

  .hero-actions > a {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
  }

  .section-header {
    margin-bottom: var(--space-2xl);
  }

  .section-subtitle {
    font-size: var(--font-size-md);
    max-width: 95%;
  }

  .hero-description {
    font-size: var(--font-size-md);
  }
  .hero-stats {
    gap: var(--space-md);
  }

  .experience-card {
    padding: var(--space-lg);
  }

  .project-card {
    max-height: 55rem;
  }
}

/* Utility Classes */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.scale-in {
  opacity: 0;
  transform: scale(0.9);
  transition: all 0.6s ease;
}

.scale-in.visible {
  opacity: 1;
  transform: scale(1);
}

.slide-in-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: all 0.6s ease;
}

.slide-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.slide-in-right {
  opacity: 0;
  transform: translateX(40px);
  transition: all 0.6s ease;
}

.slide-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}