/* ========================================
   GLOBAL STYLES & RESET
========================================= */
:root {
  /* Color Palette */
  --primary-color: #2563eb;
  --primary-dark: #1d4ed8;
  --secondary-color: #10b981;
  --accent-color: #f59e0b;
  --text-primary: #111827;
  --text-secondary: #6b7280;
  --text-light: #9ca3af;
  --bg-primary: #ffffff;
  --bg-secondary: #f9fafb;
  --bg-dark: #111827;
  --border-color: #e5e7eb;
  --shadow-light: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
  --shadow-medium: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-large: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 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;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-base: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;
  
  /* Layout */
  --max-width: 1200px;
  --border-radius: 0.75rem;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ========================================
   UTILITY CLASSES
========================================= */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--border-radius);
  transition: var(--transition);
  cursor: pointer;
  border: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: white;
  box-shadow: var(--shadow-medium);
}

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

.btn-outline {
  background: transparent;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
}

.btn-outline:hover {
  background: var(--primary-color);
  color: white;
  transform: translateY(-2px);
}

.btn-large {
  padding: var(--spacing-base) var(--spacing-xl);
  font-size: var(--font-size-base);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-4xl);
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-base);
}

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

/* ========================================
   NAVIGATION
========================================= */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  z-index: 1000;
  transition: var(--transition);
  border-bottom: 1px solid var(--border-color);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-medium);
}

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

.nav-logo a {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
}

.nav-menu {
  display: flex;
  gap: var(--spacing-xl);
  align-items: center;
}

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

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: var(--transition);
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
}

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

/* ========================================
   HERO SECTION
========================================= */
.hero {
  padding: 120px 0 var(--spacing-4xl);
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="%23e2e8f0" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
  opacity: 0.5;
}

.hero-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  position: relative;
  z-index: 2;
  width: 100%;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-4xl);
  align-items: center;
  min-height: 500px;
}

.hero-title {
  margin-bottom: var(--spacing-xl);
}

.title-main {
  display: block;
  font-size: var(--font-size-5xl);
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.1;
}

.title-sub {
  display: block;
  font-size: var(--font-size-2xl);
  font-weight: 400;
  color: var(--primary-color);
  margin-top: var(--spacing-sm);
}

.hero-description {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
}

.stat {
  text-align: center;
}

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

.stat-label {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-top: var(--spacing-xs);
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-base);
  flex-wrap: wrap;
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 400px;
  width: 100%;
  overflow: visible;
}

.hero-image-container {
  width: 300px;
  height: 300px;
  border-radius: 50%;
  overflow: hidden;
  position: relative;
  z-index: 2;
  box-shadow: var(--shadow-large);
  border: 4px solid white;
}

.hero-profile-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.floating-cards {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  width: 100%;
  height: 100%;
}

.floating-card {
  position: absolute;
  background: white;
  padding: var(--spacing-sm) var(--spacing-base);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-medium);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-weight: 500;
  animation: float 6s ease-in-out infinite;
  pointer-events: auto;
  z-index: 1;
  max-width: 140px;
  font-size: var(--font-size-sm);
  white-space: nowrap;
}

.floating-card i {
  color: var(--primary-color);
  font-size: var(--font-size-lg);
}

.card-1 {
  top: 20%;
  left: 5%;
  animation-delay: 0s;
}

.card-2 {
  top: 10%;
  right: 5%;
  animation-delay: 2s;
}

.card-3 {
  bottom: 20%;
  left: 20%;
  animation-delay: 4s;
}

.card-4 {
  bottom: 10%;
  right: 20%;
  animation-delay: 1s;
}

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

.hero-scroll-indicator {
  position: absolute;
  bottom: var(--spacing-xl);
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-light);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-10px); }
  60% { transform: translateX(-50%) translateY(-5px); }
}

/* ========================================
   ABOUT SECTION
========================================= */
.about {
  padding: var(--spacing-4xl) 0;
  background: var(--bg-primary);
}

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

.about-intro {
  margin-bottom: var(--spacing-2xl);
}

.about-intro h3 {
  font-size: var(--font-size-2xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-base);
}

.about-intro p {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  line-height: 1.7;
}

.about-highlights {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.highlight {
  display: flex;
  gap: var(--spacing-base);
  align-items: flex-start;
}

.highlight-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--border-radius);
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: var(--font-size-xl);
  flex-shrink: 0;
}

.highlight-content h4 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.highlight-content p {
  color: var(--text-secondary);
  line-height: 1.6;
}

.about-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.skills-radar {
  position: relative;
  width: 400px;
  height: 400px;
  border: 2px solid var(--border-color);
  border-radius: 50%;
  background: radial-gradient(circle, var(--bg-secondary) 0%, transparent 70%);
}

.skills-radar::before,
.skills-radar::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border: 1px solid var(--border-color);
  border-radius: 50%;
}

.skills-radar::before {
  width: 70%;
  height: 70%;
}

.skills-radar::after {
  width: 40%;
  height: 40%;
}

.skill-point {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 120px;
  height: 40px;
  transform-origin: 0 0;
  transform: translate(-50%, -50%) 
             rotate(var(--angle)) 
             translate(var(--distance), 0) 
             rotate(calc(-1 * var(--angle)));
}

.skill-point span {
  display: block;
  background: var(--primary-color);
  color: white;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-align: center;
  box-shadow: var(--shadow-medium);
  white-space: nowrap;
}

/* ========================================
   EXPERIENCE SECTION
========================================= */
.experience {
  padding: var(--spacing-4xl) 0;
  background: var(--bg-secondary);
}

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

.timeline::before {
  content: '';
  position: absolute;
  left: 50px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--primary-color);
}

.timeline-item {
  position: relative;
  padding-left: 120px;
  margin-bottom: var(--spacing-3xl);
}

.timeline-marker {
  position: absolute;
  left: 41px;
  top: 0;
  width: 18px;
  height: 18px;
  background: var(--primary-color);
  border-radius: 50%;
  border: 4px solid white;
  box-shadow: var(--shadow-medium);
}

.timeline-content {
  background: white;
  padding: var(--spacing-xl);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-medium);
  transition: var(--transition);
}

.timeline-content:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-large);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-base);
  flex-wrap: wrap;
  gap: var(--spacing-base);
}

.timeline-header h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
}

.company-info {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  text-align: right;
}

.company {
  font-weight: 600;
  color: var(--primary-color);
}

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

.timeline-description p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--spacing-base);
}

.achievements {
  list-style: none;
  margin-bottom: var(--spacing-base);
}

.achievements li {
  position: relative;
  padding-left: var(--spacing-lg);
  margin-bottom: var(--spacing-xs);
  color: var(--text-secondary);
}

.achievements li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-weight: bold;
}

.timeline-tags {
  display: flex;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
}

.tag {
  background: var(--bg-secondary);
  color: var(--primary-color);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 20px;
  font-size: var(--font-size-xs);
  font-weight: 500;
}

/* ========================================
   EXPERTISE SECTION
========================================= */
.expertise {
  padding: var(--spacing-4xl) 0;
  background: var(--bg-primary);
}

.expertise-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.expertise-card {
  background: white;
  padding: var(--spacing-xl);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-medium);
  transition: var(--transition);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
}

.expertise-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.expertise-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-large);
}

.card-icon {
  width: 80px;
  height: 80px;
  border-radius: var(--border-radius);
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-lg);
}

.expertise-card h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-base);
}

.expertise-card > p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--spacing-lg);
}

.card-details ul {
  list-style: none;
}

.card-details li {
  position: relative;
  padding-left: var(--spacing-lg);
  margin-bottom: var(--spacing-xs);
  color: var(--text-secondary);
}

.card-details li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--secondary-color);
  font-weight: bold;
}

/* ========================================
   SPEAKING SECTION
========================================= */
.speaking {
  padding: var(--spacing-4xl) 0;
  background: var(--bg-secondary);
}

.speaking-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--spacing-3xl);
}

.featured-talk {
  background: white;
  padding: var(--spacing-xl);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-medium);
  position: relative;
  margin-bottom: var(--spacing-xl);
}

.talk-badge {
  position: absolute;
  top: -10px;
  right: var(--spacing-lg);
  background: var(--accent-color);
  color: white;
  padding: var(--spacing-xs) var(--spacing-base);
  border-radius: 20px;
  font-size: var(--font-size-xs);
  font-weight: 600;
}

.featured-talk h3 {
  font-size: var(--font-size-2xl);
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: var(--spacing-xs);
}

.talk-subtitle {
  font-size: var(--font-size-lg);
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--spacing-base);
}

.talk-description {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--spacing-base);
}

.talk-topics {
  display: flex;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
}

.topic {
  background: var(--bg-secondary);
  color: var(--primary-color);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 20px;
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.speaking-topics {
  background: white;
  padding: var(--spacing-xl);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-medium);
}

.speaking-topics h4 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-base);
}

.topics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-base);
}

.topic-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

.topic-item i {
  color: var(--primary-color);
}

.speaking-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.speaking-cta {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: white;
  padding: var(--spacing-xl);
  border-radius: var(--border-radius);
  text-align: center;
}

.speaking-cta h4 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-base);
}

.speaking-cta p {
  margin-bottom: var(--spacing-lg);
  opacity: 0.9;
}

.speaking-cta .btn {
  background: white;
  color: var(--primary-color);
}

.speaking-cta .btn:hover {
  background: var(--bg-secondary);
}

.credentials {
  background: white;
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-medium);
}

.credentials h5 {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-base);
}

.credentials ul {
  list-style: none;
}

.credentials li {
  position: relative;
  padding-left: var(--spacing-lg);
  margin-bottom: var(--spacing-xs);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

.credentials li::before {
  content: '🎤';
  position: absolute;
  left: 0;
}

/* ========================================
   PROJECTS SECTION
========================================= */
.projects {
  padding: var(--spacing-4xl) 0;
  background: var(--bg-primary);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.project-card {
  background: white;
  padding: var(--spacing-xl);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-medium);
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-large);
}

.project-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--border-radius);
  background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-lg);
}

.project-card h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-base);
}

.project-card p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--spacing-lg);
}

.project-tech {
  display: flex;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
}

.tech-tag {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 20px;
  font-size: var(--font-size-xs);
  font-weight: 500;
}

/* ========================================
   CONTACT SECTION
========================================= */
.contact {
  padding: var(--spacing-4xl) 0;
  background: var(--bg-secondary);
}

.contact-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--spacing-3xl);
}

.contact-info {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

.contact-card {
  background: white;
  padding: var(--spacing-xl);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-medium);
  transition: var(--transition);
}

.contact-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-large);
}

.contact-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--border-radius);
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-base);
}

.contact-card h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.contact-card p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--spacing-base);
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

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

.contact-cta {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: white;
  padding: var(--spacing-2xl);
  border-radius: var(--border-radius);
  text-align: center;
  height: fit-content;
}

.cta-content h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-base);
}

.cta-content p {
  margin-bottom: var(--spacing-lg);
  opacity: 0.9;
  line-height: 1.6;
}

.cta-content .btn {
  background: white;
  color: var(--primary-color);
}

.cta-content .btn:hover {
  background: var(--bg-secondary);
}

.pro-bono-note {
  background: rgba(255, 255, 255, 0.1);
  padding: var(--spacing-base);
  border-radius: var(--border-radius);
  margin-top: var(--spacing-base);
  border-left: 4px solid var(--secondary-color);
  font-size: var(--font-size-sm);
  opacity: 0.95;
}

/* ========================================
   FOOTER
========================================= */
.footer {
  background: var(--bg-dark);
  color: white;
  padding: var(--spacing-2xl) 0 var(--spacing-base);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-base);
}

.footer-info h4 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.footer-info p {
  color: var(--text-light);
  font-size: var(--font-size-sm);
}

.footer-links {
  display: flex;
  gap: var(--spacing-base);
}

.footer-links a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  text-decoration: none;
  transition: var(--transition);
}

.footer-links a:hover {
  background: var(--primary-color);
  transform: translateY(-2px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-base);
  text-align: center;
}

.footer-bottom p {
  color: var(--text-light);
  font-size: var(--font-size-sm);
}

/* ========================================
   RESPONSIVE DESIGN
========================================= */
@media (max-width: 1200px) {
  .floating-card {
    max-width: 130px;
    padding: var(--spacing-sm);
    font-size: var(--font-size-xs);
  }
  
  .card-1 {
    top: 10%;
    left: 0%;
  }
  
  .card-2 {
    top: 10%;
    right: 0%;
  }
  
  .card-3 {
    bottom: 10%;
    left: 10%;
  }
  
  .card-4 {
    bottom: 10%;
    right: 10%;
  }
}

@media (max-width: 1024px) {
  .hero-content,
  .about-content,
  .speaking-content,
  .contact-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }
  
  .hero-visual {
    order: -1;
  }
  
  .hero-image-container {
    width: 250px;
    height: 250px;
  }
  
  .floating-cards {
    display: none;
  }
  
  .section-title {
    font-size: var(--font-size-3xl);
  }
  
  .title-main {
    font-size: var(--font-size-4xl);
  }
  
  .title-sub {
    font-size: var(--font-size-xl);
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background-color: white;
    width: 100%;
    text-align: center;
    transition: 0.3s;
    box-shadow: var(--shadow-medium);
    padding: var(--spacing-lg) 0;
    gap: var(--spacing-base);
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .nav-toggle.active .bar:nth-child(2) {
    opacity: 0;
  }
  
  .nav-toggle.active .bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  
  .nav-toggle.active .bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
  
  .hero {
    padding: 100px 0 var(--spacing-2xl);
  }
  
  .hero-content {
    text-align: center;
    gap: var(--spacing-xl);
  }
  
  .hero-stats {
    justify-content: center;
    gap: var(--spacing-lg);
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .section-title {
    font-size: var(--font-size-2xl);
  }
  
  .title-main {
    font-size: var(--font-size-3xl);
  }
  
  .title-sub {
    font-size: var(--font-size-lg);
  }
  
  .timeline::before {
    left: 20px;
  }
  
  .timeline-item {
    padding-left: 60px;
  }
  
  .timeline-marker {
    left: 11px;
  }
  
  .timeline-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .company-info {
    align-items: flex-start;
    text-align: left;
  }
  
  .expertise-grid,
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .topics-grid {
    grid-template-columns: 1fr;
  }
  
  .skills-radar {
    width: 300px;
    height: 300px;
  }
  
  .skill-point {
    width: 100px;
  }
  
  .about-visual {
    order: -1;
  }
  
  .footer-content {
    flex-direction: column;
    gap: var(--spacing-base);
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-base);
  }
  
  .hero-image-container {
    width: 200px;
    height: 200px;
  }
  
  .hero-stats {
    flex-direction: column;
    gap: var(--spacing-base);
  }
  
  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-buttons .btn {
    width: 100%;
    justify-content: center;
  }
  
  .section-header {
    margin-bottom: var(--spacing-2xl);
  }
  
  .section-title {
    font-size: var(--font-size-xl);
  }
  
  .title-main {
    font-size: var(--font-size-2xl);
  }
  
  .skills-radar {
    width: 250px;
    height: 250px;
  }
  
  .skill-point {
    width: 80px;
  }
  
  .skill-point span {
    font-size: var(--font-size-xs);
    padding: 4px 8px;
  }
}