/* Modern Resume Website with Animations and Gradients */

/* CSS Variables for consistent theming */
:root {
  --primary-bg: #0a0a0a;
  --secondary-bg: #111111;
  --card-bg: #1a1a1a;
  --accent-color: #00d4aa;
  --accent-secondary: #00a8ff;
  --text-primary: #ffffff;
  --text-secondary: #b0b0b0;
  --text-muted: #666666;
  --gradient-primary: linear-gradient(135deg, #00d4aa 0%, #00a8ff 100%);
  --gradient-secondary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-accent: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --shadow-primary: 0 10px 30px rgba(0, 212, 170, 0.3);
  --shadow-secondary: 0 5px 15px rgba(0, 0, 0, 0.3);
  --border-radius: 12px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--primary-bg);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.8rem; }
h4 { font-size: 1.4rem; }

p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: 1rem 0;
  transition: var(--transition);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  gap: 2rem;
}

.lang-switcher {
  margin-left: 1rem;
  position: relative;
}

.lang-button {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: linear-gradient(180deg, rgba(26,26,26,0.9), rgba(26,26,26,0.6));
  color: var(--text-primary);
  cursor: pointer;
  overflow: hidden;
  transition: var(--transition);
  box-shadow: 0 2px 12px rgba(0,0,0,0.25);
  min-width: 66px;
}

.lang-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.35);
  border-color: rgba(0, 212, 170, 0.4);
}

.lang-button .lang-current {
  line-height: 1;
  display: inline-block;
}

.lang-button .lang-caret {
  width: 8px;
  height: 8px;
  border-right: 1px solid var(--text-secondary);
  border-bottom: 1px solid var(--text-secondary);
  display: inline-block;
  vertical-align: middle;
  line-height: 1;
  transform-origin: 50% 50%;
  transform: rotate(45deg);
  position: relative;
  top: 0;
  margin: 0 0 5px 0; /* keep compact look but allow slight optical lowering */
  transition: transform 200ms ease, top 120ms ease 200ms, border-color 200ms ease;
}

.lang-button[aria-expanded="true"] .lang-caret {
  border-color: var(--accent-color);
  transform: rotate(-135deg);
  top: 5px; /* stays down after opening */
}

/* no keyframes — use staggered transitions for rotate then drop */

.lang-button .lang-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(120px 60px at var(--mx, 0%) var(--my, 0%), rgba(0, 212, 170, 0.15), transparent 70%);
  pointer-events: none;
  transition: opacity 0.2s ease;
  opacity: 0;
}

.lang-button:hover .lang-glow { opacity: 1; }

.lang-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 160px;
  background: rgba(20,20,20,0.95);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-secondary);
  padding: 0.25rem;
  list-style: none;
  display: grid;
  gap: 0.25rem;
  max-height: 0;
  opacity: 0;
  transform: translateY(-6px) scale(0.98);
  transform-origin: top right;
  transition: max-height 0.25s ease, opacity 0.2s ease, transform 0.2s ease;
  overflow: hidden;
  z-index: 1001;
}

.lang-menu.open {
  max-height: 300px;
  opacity: 1;
  transform: translateY(0) scale(1);
}

.lang-menu li {
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  color: var(--text-secondary);
  cursor: pointer;
  position: relative;
  transition: var(--transition);
}

.lang-menu li::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 8px;
  background: linear-gradient(90deg, rgba(0,212,170,0.12), rgba(0,168,255,0.12));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
  z-index: -1;
}

.lang-menu li:hover {
  color: var(--text-primary);
}

.lang-menu li:hover::before { transform: scaleX(1); }

.lang-menu li.active {
  color: var(--accent-color);
  background: rgba(255,255,255,0.04);
}

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

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: var(--transition);
}

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

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  z-index: 1002;
  padding: 8px;
  border-radius: 8px;
  transition: var(--transition);
}

.hamburger:hover {
  background: rgba(255, 255, 255, 0.05);
}

.bar {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  margin: 3px 0;
  transition: var(--transition);
  border-radius: 2px;
}

.hamburger.active .bar:nth-child(1) {
  transform: rotate(-45deg) translate(-5px, 6px);
}

.hamburger.active .bar:nth-child(2) {
  opacity: 0;
  transform: translateX(-20px);
}

.hamburger.active .bar:nth-child(3) {
  transform: rotate(45deg) translate(-5px, -6px);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: -1;
}

.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.3;
  animation: float 6s ease-in-out infinite;
}

.orb-1 {
  width: 400px;
  height: 400px;
  background: var(--gradient-primary);
  top: 10%;
  left: 10%;
  animation-delay: 0s;
}

.orb-2 {
  width: 300px;
  height: 300px;
  background: var(--gradient-secondary);
  top: 60%;
  right: 10%;
  animation-delay: 2s;
}

.orb-3 {
  width: 200px;
  height: 200px;
  background: var(--gradient-accent);
  bottom: 20%;
  left: 50%;
  animation-delay: 4s;
}

@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(180deg); }
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  width: 100%;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  line-height: 1.1;
}

.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
  from { filter: drop-shadow(0 0 20px rgba(0, 212, 170, 0.5)); }
  to { filter: drop-shadow(0 0 30px rgba(0, 212, 170, 0.8)); }
}

.hero-description {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent-color);
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.stat-divider {
  width: 1px;
  height: 60px;
  background: var(--text-muted);
}

/* Hero Visual */
.hero-visual {
  position: relative;
  height: 500px;
}

.floating-cards {
  position: relative;
  height: 100%;
}

.card {
  position: absolute;
  background: rgba(26, 26, 26, 0.8);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  animation: floatCard 4s ease-in-out infinite;
}

.card-1 {
  top: 20%;
  left: 10%;
  animation-delay: 0s;
}

.card-2 {
  top: 27%;
  right: 30%;
  animation-delay: 1s;
}

.card-3 {
  bottom: 20%;
  left: 30%;
  animation-delay: 2s;
}

@keyframes floatCard {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-10px) rotate(2deg); }
}

.card-content {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 80px;
}

.progress-circle {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.progress-ring-circle {
  stroke-dasharray: 157;
  stroke-dashoffset: 39;
  transition: stroke-dashoffset 0.5s ease-in-out;
  animation: progressAnimation 2s ease-in-out;
}

@keyframes progressAnimation {
  from { stroke-dashoffset: 157; }
  to { stroke-dashoffset: 39; }
}

.progress-text {
  position: absolute;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent-color);
}

.chart-container {
  display: flex;
  align-items: end;
  gap: 4px;
  height: 60px;
}

.chart-bar {
  width: 8px;
  background: var(--gradient-primary);
  border-radius: 4px;
  transform-origin: bottom;
  transform: scaleY(0);
  animation: chartGrow 1.2s ease-out forwards;
}

@keyframes chartGrow {
  from { transform: scaleY(0); }
  to { transform: scaleY(1); }
}

.code-snippet {
  font-family: 'Monaco', 'Menlo', monospace;
  font-size: 0.9rem;
}

.code-keyword { color: #ff79c6; }
.code-variable { color: #8be9fd; }
.code-operator { color: #f8f8f2; }
.code-string { color: #f1fa8c; }

/* Robotic Hand */
.robotic-hand {
  position: absolute;
  top: 27%;
  right: 20%;
  transform: translateY(-50%);
  width: 100px;
  height: 120px;
  animation: handReach 3s ease-in-out infinite;
}

@keyframes handReach {
  0%, 100% { transform: translateY(-50%) translateX(0); }
  50% { transform: translateY(-50%) translateX(10px); }
}

.hand-palm {
  width: 40px;
  height: 60px;
  background: rgba(0, 212, 170, 0.3);
  border-radius: 20px;
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
}

.hand-finger {
  width: 8px;
  height: 30px;
  background: rgba(0, 212, 170, 0.4);
  border-radius: 4px;
  position: absolute;
  bottom: 50px;
  animation: fingerMove 2s ease-in-out infinite;
}

.finger-1 { left: 10px; animation-delay: 0s; }
.finger-2 { left: 20px; animation-delay: 0.2s; }
.finger-3 { left: 30px; animation-delay: 0.4s; }
.finger-4 { left: 40px; animation-delay: 0.6s; }

@keyframes fingerMove {
  0%, 100% { transform: rotate(0deg); }
  50% { transform: rotate(-10deg); }
}

/* Section Styles */
section {
  padding: 5rem 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Skills Section */
.skills {
  background: var(--secondary-bg);
}

.skills-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.skills-visual {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.code-editor {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.editor-header {
  background: #2d2d2d;
  padding: 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.editor-dots {
  display: flex;
  gap: 0.5rem;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27ca3f; }

.editor-title {
  color: var(--text-primary);
  font-weight: 500;
}

.editor-content {
  padding: 1.5rem;
}

.file-structure {
  margin-bottom: 1rem;
}

.file-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.api-button {
  background: var(--gradient-primary);
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 500;
  transition: var(--transition);
}

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

.tech-metrics {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.tech-metrics h3 {
  margin-bottom: 1rem;
  color: var(--accent-color);
}

.metric-list {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.metric-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.5rem;
  border-radius: 6px;
  transition: var(--transition);
}

.metric-item:hover {
  background: rgba(255, 255, 255, 0.05);
}

.metric-item i {
  width: 20px;
  color: var(--accent-color);
}

.metric-value {
  margin-left: auto;
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-size: 0.9rem;
}

.metric-value.positive {
  color: #00d4aa;
  background: rgba(0, 212, 170, 0.1);
}

.metric-value.negative {
  color: #ff6b6b;
  background: rgba(255, 107, 107, 0.1);
}

.skills-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.skill-card {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.skill-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: var(--transition);
}

.skill-card:hover::before {
  transform: scaleX(1);
}

.skill-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-secondary);
}

.skill-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.skill-icon i {
  font-size: 1.5rem;
  color: white;
}

.skill-card h3 {
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.skill-list {
  list-style: none;
}

.skill-list li {
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  position: relative;
  padding-left: 1rem;
}

.skill-list li::before {
  content: '▶';
  position: absolute;
  left: 0;
  color: var(--accent-color);
  font-size: 0.8rem;
}

/* Experience Section */
.experience {
  background: var(--primary-bg);
}

.experience-timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.experience-timeline::before {
  content: '';
  position: absolute;
  left: 30px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--gradient-primary);
}

.timeline-item {
  position: relative;
  margin-bottom: 3rem;
  padding-left: 80px;
}

.timeline-marker {
  position: absolute;
  left: 21px;
  top: 0;
  width: 20px;
  height: 20px;
  background: var(--gradient-primary);
  border-radius: 50%;
  border: 4px solid var(--primary-bg);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(0, 212, 170, 0.7); }
  70% { box-shadow: 0 0 0 10px rgba(0, 212, 170, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 212, 170, 0); }
}

.timeline-content {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition);
}

.timeline-content:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-secondary);
}

.experience-header {
  margin-bottom: 2rem;
}

.experience-header h3 {
  color: var(--accent-color);
  margin-bottom: 0.5rem;
}

.company {
  color: var(--text-primary);
  font-weight: 500;
  margin-right: 1rem;
}

.period {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.experience-projects {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.project {
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.02);
  border-radius: 8px;
  border-left: 3px solid var(--accent-color);
}

.project h4 {
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.project p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tech-tag {
  background: rgba(0, 212, 170, 0.1);
  color: var(--accent-color);
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.8rem;
  border: 1px solid rgba(0, 212, 170, 0.3);
}

/* Languages Section */
.languages {
  background: var(--secondary-bg);
}

.languages-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.language-card {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition);
}

.language-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-secondary);
}

.language-info h3 {
  color: var(--accent-color);
  margin-bottom: 1rem;
}

.language-stats {
  margin-bottom: 2rem;
}

.stat-chart {
  display: flex;
  justify-content: center;
}

.language-chart {
  filter: drop-shadow(0 0 10px rgba(0, 212, 170, 0.3));
}

.language-flags {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.flag-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem;
  border-radius: 6px;
  transition: var(--transition);
}

.flag-item:hover {
  background: rgba(255, 255, 255, 0.05);
}

.flag {
  font-size: 1.5rem;
}

.languages-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.language-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--card-bg);
  border-radius: var(--border-radius);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition);
}

.language-item:hover {
  transform: translateX(10px);
  box-shadow: var(--shadow-secondary);
}

.language-name {
  font-weight: 500;
  min-width: 100px;
}

.language-level {
  color: var(--text-muted);
  font-size: 0.9rem;
  min-width: 80px;
}

.language-bar {
  flex: 1;
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  overflow: hidden;
}

.language-progress {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: 4px;
  transition: width 1s ease-out;
  animation: progressFill 2s ease-out;
}

@keyframes progressFill {
  from { width: 0; }
  to { width: var(--width, 100%); }
}

/* Education Section */
.education {
  background: var(--primary-bg);
}

.education-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.education-card {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.education-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: var(--transition);
}

.education-card:hover::before {
  transform: scaleX(1);
}

.education-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-secondary);
}

.education-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.education-icon i {
  font-size: 1.5rem;
  color: white;
}

.education-card h3 {
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.education-degree {
  color: var(--accent-color);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.education-period {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.education-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* Contact Section */
.contact {
  background: var(--secondary-bg);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.contact-form-wrapper {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: var(--border-radius);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  color: var(--text-primary);
  font-weight: 500;
  font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
  padding: 0.875rem 1rem;
  background: var(--secondary-bg);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-submit {
  padding: 1rem 2rem;
  background: var(--gradient-primary);
  border: none;
  border-radius: 8px;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.form-submit::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;
}

.form-submit:hover::before {
  left: 100%;
}

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

.form-submit:active {
  transform: translateY(0);
}

.contact-links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--card-bg);
  border-radius: var(--border-radius);
  text-decoration: none;
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.contact-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  opacity: 0.1;
  transition: var(--transition);
}

.contact-link:hover::before {
  left: 0;
}

.contact-link:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-primary);
  border-color: var(--accent-color);
}

.contact-link i {
  font-size: 1.5rem;
  color: var(--accent-color);
  min-width: 24px;
}

/* Footer */
.footer {
  background: var(--primary-bg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 3rem 0 1rem;
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-logo h3 {
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.footer-logo p {
  color: var(--text-muted);
  font-style: italic;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.footer-column h4 {
  color: var(--accent-color);
  margin-bottom: 1rem;
  font-size: 1rem;
}

.footer-column a {
  display: block;
  color: var(--text-secondary);
  text-decoration: none;
  margin-bottom: 0.5rem;
  transition: var(--transition);
}

.footer-column a:hover {
  color: var(--accent-color);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  color: var(--text-muted);
  margin: 0;
}

.footer-social {
  display: flex;
  gap: 1rem;
}

.footer-social a {
  width: 40px;
  height: 40px;
  background: var(--card-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--gradient-primary);
  color: white;
  transform: translateY(-3px);
}

/* Responsive Design */
@media (max-width: 992px) {
  .contact-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100vh;
    background: linear-gradient(135deg, rgba(10, 10, 10, 0.98) 0%, rgba(26, 26, 26, 0.98) 100%);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    transition: left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 999;
    padding: 2rem;
    box-shadow: 0 0 100px rgba(0, 212, 170, 0.1);
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-menu::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 30%, rgba(0, 212, 170, 0.08) 0%, transparent 70%);
    pointer-events: none;
  }

  .nav-link {
    font-size: 1.5rem;
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.3s ease, transform 0.3s ease, color 0.3s ease;
    padding: 0.8rem 2rem;
    border-radius: 12px;
    position: relative;
    z-index: 1;
  }

  .nav-link::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-primary);
    opacity: 0;
    border-radius: 12px;
    transition: opacity 0.3s ease;
    z-index: -1;
  }

  .nav-link:hover::before {
    opacity: 0.15;
  }

  .nav-link:active {
    transform: scale(0.98);
  }

  .nav-menu.active .nav-link {
    opacity: 1;
    transform: translateX(0);
  }

  .nav-menu.active .nav-link:nth-child(1) {
    transition-delay: 0.1s;
  }

  .nav-menu.active .nav-link:nth-child(2) {
    transition-delay: 0.15s;
  }

  .nav-menu.active .nav-link:nth-child(3) {
    transition-delay: 0.2s;
  }

  .nav-menu.active .nav-link:nth-child(4) {
    transition-delay: 0.25s;
  }

  .nav-menu.active .nav-link:nth-child(5) {
    transition-delay: 0.3s;
  }

  .nav-link::after {
    display: none;
  }

  .lang-switcher {
    position: fixed;
    top: 20px;
    right: 70px;
    z-index: 1001;
    margin: 0;
  }

  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-title {
    font-size: 2.5rem;
  }

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

  .languages-content {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
  }

  .footer-links {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .container {
    padding: 0 1rem;
  }

  .nav-container {
    padding: 0 1rem;
  }

  .hero-container {
    padding: 0 1rem;
  }
  /* Lower hero content so title isn't stuck to the top on phones */
  .hero { padding-top: 6.5rem; }
  .hero-stats { justify-content: center; }

  /* Experience: loosen layout on mobile */
  .experience-timeline { max-width: 100%; padding: 0 16px; }
  .timeline-content { padding: 1.25rem; }
  .timeline-item { padding-left: 0; }
  .experience-projects { gap: 1.25rem; }
  .project { padding: 1.25rem; border-left-width: 2px; }
  .project h4 { font-size: 1.3rem; line-height: 1.25; }
  .project p { font-size: 1.05rem; line-height: 1.7; }
  .project-tech { gap: 0.4rem; }
  .tech-tag { font-size: 0.8rem; padding: 0.25rem 0.7rem; }

  /* Timeline: compact gradient line and softer marker on phones */
  .experience-timeline::before { display: none; }
  .timeline-marker { display: none; }

  /* Hero visuals: revert to desktop layout on mobile to avoid misalignment */
  .hero-visual { height: 500px; }
  .floating-cards { position: relative; height: 100%; }
  .card { position: absolute; padding: 1.5rem; animation: floatCard 4s ease-in-out infinite; }
  .card-1 { top: 20%; left: 10%; animation-delay: 0s; }
  .card-2 { top: 35%; right: 40%; animation-delay: 1s; }
  .card-3 { bottom: 18%; left: 30%; animation-delay: 2s; width: auto; max-width: none; transform: none; z-index: 3; }
  .card-1, .card-2 { z-index: 1; }
  .robotic-hand { right: 20%; top: 35%; width: 100px; height: 120px; opacity: 1; z-index: 1; }
}

/* Subtle mobile float to preserve performance */
@keyframes floatMobile {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-8px) scale(1.01); }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }

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

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

  .education-cards {
    grid-template-columns: 1fr;
  }

  .contact-content {
    grid-template-columns: 1fr;
  }

  .contact-links {
    grid-template-columns: 1fr;
  }
  /* Slightly more padding on very small devices */
  .hero { padding-top: 7.5rem; }
  .hero-stats { justify-content: center; gap: 1.5rem; }
  .stat-divider { display: none; }

  /* Experience: adjust timeline positions for tiny screens */
  .experience-timeline::before { display: none; }
  .timeline-marker { display: none; }
  .experience-timeline { padding: 0 12px; }
  .timeline-item { padding-left: 0; }
  .project h4 { font-size: 1.2rem; }
  .project p { font-size: 1rem; }
}

/* Scroll Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* Generic reveal animation states */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 600ms ease, transform 600ms ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Content swap animation for i18n updates */
@keyframes swapOutIn {
  0% { opacity: 1; transform: translateY(0); }
  40% { opacity: 0; transform: translateY(6px); }
  60% { opacity: 0; transform: translateY(-6px); }
  100% { opacity: 1; transform: translateY(0); }
}

.i18n-swap {
  animation: swapOutIn 280ms ease;
}

/* New approach: hide then animate in */
@keyframes swapIn {
  0% { opacity: 0; transform: translateY(6px); }
  100% { opacity: 1; transform: translateY(0); }
}

.i18n-hide { opacity: 0 !important; }
.i18n-swap-in { animation: swapIn 220ms ease; }

/* Loading Animation */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.loading {
  animation: spin 1s linear infinite;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--primary-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--gradient-primary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-color);
}