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

/* CSS Variables */
:root {
  --color-bg-primary: #121212;
  --color-bg-secondary: #1a1a1a;
  --color-bg-card: #1e1e1e;
  --color-accent: #FF6B00;
  --color-accent-hover: #ff8533;
  --color-text-primary: #ffffff;
  --color-text-secondary: #b3b3b3;
  --color-border: #333333;
  --font-heading: 'Montserrat', sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --transition-base: 300ms ease-in-out;
}

/* Base Styles */
html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

::selection {
  background-color: var(--color-accent);
  color: white;
}

/* Container */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

@media (max-width: 640px) {
  .container {
    padding: 0 1rem;
  }
}

/* Section */
.section {
  padding: 5rem 0;
}

/* Hero Section */
.hero-section {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  position: relative;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  padding: 5rem 0;
  max-width: 64rem;
  margin: 0 auto;
  text-align: center;
  z-index: 10;
}

.profile-photo-wrapper {
  position: relative;
}

.profile-glow {
  position: absolute;
  inset: 0;
  background-color: var(--color-accent);
  border-radius: 50%;
  filter: blur(2rem);
  opacity: 0.2;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.2; }
  50% { opacity: 0.3; }
}

.profile-photo {
  position: relative;
  width: 10rem;
  height: 10rem;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid rgba(255, 107, 0, 0.5);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 0 40px rgba(255, 107, 0, 0.2);
}

@media (min-width: 640px) {
  .profile-photo {
    width: 12rem;
    height: 12rem;
  }
}

@media (min-width: 1024px) {
  .profile-photo {
    width: 13rem;
    height: 13rem;
  }
}

.hero-title {
  font-size: 3rem;
  font-weight: 700;
  font-family: var(--font-heading);
  letter-spacing: -0.025em;
}

@media (min-width: 640px) {
  .hero-title {
    font-size: 3.75rem;
  }
}

@media (min-width: 1024px) {
  .hero-title {
    font-size: 4.5rem;
  }
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  max-width: 42rem;
  padding: 0 1rem;
  font-family: var(--font-mono);
}

@media (min-width: 640px) {
  .hero-subtitle {
    font-size: 1.25rem;
  }
}

@media (min-width: 1024px) {
  .hero-subtitle {
    font-size: 1.5rem;
  }
}

.social-links {
  display: flex;
  gap: 2rem;
  padding: 1rem 0;
}

.social-link {
  transition: transform var(--transition-base);
}

.social-link:hover {
  transform: scale(1.1);
}

.social-link:active {
  transform: scale(0.95);
}

.social-icon {
  padding: 1.25rem;
  border-radius: 50%;
  background-color: rgba(255, 107, 0, 0.1);
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  justify-content: center;
}

.social-icon svg {
  width: 2rem;
  height: 2rem;
  color: var(--color-accent);
  transition: color var(--transition-base);
  stroke-width: 2;
}

.social-link:hover .social-icon {
  background-color: var(--color-accent);
  box-shadow: 0 10px 15px -3px rgba(255, 107, 0, 0.4);
}

.social-link:hover .social-icon svg {
  color: white;
}

.scroll-indicator {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  color: #6b7280;
  animation: bounce 1s ease-in-out infinite;
}

.scroll-indicator svg {
  width: 2rem;
  height: 2rem;
}

@keyframes bounce {
  0%, 100% {
    transform: translateX(-50%) translateY(0);
  }
  50% {
    transform: translateX(-50%) translateY(-0.5rem);
  }
}

/* Fade In Animation */
.fade-in {
  animation: fadeIn 0.8s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(1.25rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Background Section */
.background-card {
  background: rgba(255, 107, 0, 0.08);
  border: 1px solid rgba(255, 107, 0, 0.2);
  border-radius: 1.5rem;
  padding: 3rem;
  backdrop-filter: blur(4px);
  position: relative;
  overflow: hidden;
}

@media (min-width: 640px) {
  .background-card {
    padding: 3rem;
  }
}

.background-glow {
  position: absolute;
  top: 0;
  right: 0;
  width: 16rem;
  height: 16rem;
  background-color: var(--color-accent);
  opacity: 0.05;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
}

.background-content {
  position: relative;
  z-index: 10;
}

.section-title {
  font-size: 1.875rem;
  font-weight: 700;
  color: white;
  margin-bottom: 1.5rem;
  font-family: var(--font-heading);
}

@media (min-width: 640px) {
  .section-title {
    font-size: 2.25rem;
  }
}

.text-accent {
  color: var(--color-accent);
}

.background-grid {
  display: grid;
  gap: 3rem;
}

@media (min-width: 768px) {
  .background-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.background-text {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.text-large {
  color: #d1d5db;
  line-height: 1.75;
  font-size: 1.125rem;
}

.expertise-card {
  background-color: rgba(18, 18, 18, 0.5);
  border-radius: 1rem;
  padding: 1.5rem;
  border: 1px solid rgba(255, 107, 0, 0.1);
}

.expertise-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: white;
  margin-bottom: 1.5rem;
  font-family: var(--font-heading);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.title-bar {
  width: 0.5rem;
  height: 2rem;
  background-color: var(--color-accent);
  border-radius: 9999px;
}

.expertise-list {
  display: grid;
  gap: 1rem;
}

.expertise-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: #d1d5db;
  font-family: var(--font-mono);
  transition: color var(--transition-base);
}

.expertise-item:hover {
  color: var(--color-accent);
}

.expertise-icon {
  padding: 0.5rem;
  border-radius: 0.5rem;
  background-color: rgba(255, 107, 0, 0.1);
  color: var(--color-accent);
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  justify-content: center;
}

.expertise-icon svg {
  width: 1.25rem;
  height: 1.25rem;
}

.expertise-item:hover .expertise-icon {
  background-color: var(--color-accent);
  color: white;
}

/* Divider */
.divider {
  max-width: 1280px;
  margin: 2rem auto;
  height: 1px;
  background: linear-gradient(to right, transparent, #333, transparent);
  opacity: 0.5;
}

/* Education Section */
.education-grid {
  display: grid;
  gap: 1.5rem;
  margin-top: 3rem;
}

@media (min-width: 768px) {
  .education-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.education-card {
  position: relative;
  background-color: var(--color-bg-secondary);
  padding: 1.5rem;
  border-radius: 1rem;
  border: 1px solid rgba(255, 107, 0, 0.2);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.education-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 107, 0, 0.05), transparent);
  opacity: 0;
  transition: opacity 0.5s;
  border-radius: 1rem;
}

.education-card:hover {
  border-color: var(--color-accent);
}

.education-card:hover::before {
  opacity: 1;
}

.education-icon {
  position: relative;
  z-index: 10;
  width: 3rem;
  height: 3rem;
  background-color: rgba(255, 107, 0, 0.1);
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  margin-bottom: 1.5rem;
  transition: transform var(--transition-base);
}

.education-icon svg {
  width: 1.5rem;
  height: 1.5rem;
}

.education-card:hover .education-icon {
  transform: scale(1.1);
}

.education-title {
  position: relative;
  z-index: 10;
  font-size: 1.25rem;
  font-weight: 700;
  color: white;
  margin-bottom: 0.5rem;
  font-family: var(--font-heading);
  transition: color var(--transition-base);
}

.education-card:hover .education-title {
  color: var(--color-accent);
}

.education-footer {
  position: relative;
  z-index: 10;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid #333;
}

.education-institution {
  color: var(--color-text-secondary);
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

/* Skills Section */
.section-header {
  margin-bottom: 3rem;
}

.section-description {
  color: var(--color-text-secondary);
  margin-top: 1rem;
  font-family: var(--font-mono);
  max-width: 42rem;
}

.skills-grid {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .skills-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.skill-card {
  background-color: var(--color-bg-primary);
  border: 1px solid rgba(255, 107, 0, 0.2);
  border-radius: 1rem;
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base);
}

.skill-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background-color: rgba(255, 107, 0, 0.03);
  transition: background-color var(--transition-base);
}

.skill-card:hover {
  transform: scale(1.02);
  box-shadow: 0 0 20px rgba(255, 107, 0, 0.1);
}

.skill-card:hover::before {
  background-color: rgba(255, 107, 0, 0.06);
}

.skill-icon {
  position: relative;
  z-index: 10;
  width: 3rem;
  height: 3rem;
  background-color: rgba(255, 107, 0, 0.1);
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  margin-bottom: 1.5rem;
  border: 1px solid rgba(255, 107, 0, 0.2);
  transition: border-color var(--transition-base);
}

.skill-icon svg {
  width: 1.5rem;
  height: 1.5rem;
}

.skill-card:hover .skill-icon {
  border-color: var(--color-accent);
}

.skill-title {
  position: relative;
  z-index: 10;
  font-size: 1.25rem;
  font-weight: 700;
  color: white;
  margin-bottom: 0.75rem;
  font-family: var(--font-heading);
}

.skill-description {
  position: relative;
  z-index: 10;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  font-family: var(--font-mono);
  line-height: 1.75;
  min-height: 2.5rem;
  margin-bottom: 1.5rem;
}

.tech-tags {
  position: relative;
  z-index: 10;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tech-tag {
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  border-radius: 0.375rem;
  background-color: var(--color-bg-secondary);
  color: #d1d5db;
  font-family: var(--font-mono);
  border: 1px solid #374151;
  transition: all var(--transition-base);
}

.skill-card:hover .tech-tag {
  border-color: rgba(255, 107, 0, 0.3);
  color: var(--color-accent);
}

/* Featured Project Section */
.featured-project {
  position: relative;
  border-radius: 1.5rem;
  overflow: hidden;
  border: 1px solid rgba(255, 107, 0, 0.3);
  background-color: var(--color-bg-primary);
}

.featured-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.featured-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.2;
}

.featured-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, #121212, rgba(18, 18, 18, 0.95), rgba(18, 18, 18, 0.8));
}

.featured-content {
  position: relative;
  z-index: 10;
  display: grid;
  gap: 3rem;
  padding: 3rem;
}

@media (min-width: 1024px) {
  .featured-content {
    grid-template-columns: repeat(2, 1fr);
  }
}

.featured-info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.featured-badge {
  display: inline-block;
  padding: 0.25rem 1rem;
  border-radius: 9999px;
  background-color: rgba(255, 107, 0, 0.2);
  color: var(--color-accent);
  font-size: 0.875rem;
  font-weight: 700;
  font-family: var(--font-mono);
  width: fit-content;
}

.featured-title {
  font-size: 2.25rem;
  font-weight: 700;
  color: white;
  font-family: var(--font-heading);
}

@media (min-width: 640px) {
  .featured-title {
    font-size: 3rem;
  }
}

.featured-subtitle {
  font-size: 1.25rem;
  color: var(--color-accent);
  font-weight: 500;
}

.featured-description {
  color: #d1d5db;
  line-height: 1.75;
}

.featured-features {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.feature-item {
  border-radius: 0.75rem;
  border: 1px solid #374151;
  background-color: rgba(26, 26, 26, 0.6);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition-base);
}

.feature-item:hover {
  border-color: rgba(255, 107, 0, 0.5);
}

.feature-item.active {
  background-color: rgba(255, 107, 0, 0.1);
  border-color: var(--color-accent);
}

.feature-header {
  padding: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.feature-icon-wrapper {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.feature-icon-wrapper svg {
  width: 1.25rem;
  height: 1.25rem;
  color: #9ca3af;
  transition: color var(--transition-base);
}

.feature-item.active .feature-icon-wrapper svg {
  color: var(--color-accent);
}

.feature-name {
  font-weight: 700;
  font-family: var(--font-heading);
  color: #d1d5db;
  transition: color var(--transition-base);
}

.feature-item.active .feature-name {
  color: white;
}

.feature-chevron {
  color: #6b7280;
  transition: all var(--transition-base);
}

.feature-item.active .feature-chevron {
  color: var(--color-accent);
  transform: rotate(180deg);
}

.feature-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.feature-item.active .feature-content {
  max-height: 10rem;
}

.feature-content p {
  padding: 0 1rem 1rem 3.5rem;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  font-family: var(--font-mono);
}

/* Projects Section */
.projects-grid {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .projects-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.project-card {
  display: flex;
  flex-direction: column;
  background-color: var(--color-bg-secondary);
  border: 1px solid rgba(255, 107, 0, 0.1);
  border-radius: 1rem;
  padding: 1.5rem;
  transition: all var(--transition-base);
  height: 100%;
}

.project-card:hover {
  transform: translateY(-0.3125rem);
  border-color: rgba(255, 107, 0, 0.5);
  box-shadow: 0 10px 15px -3px rgba(255, 107, 0, 0.1);
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  margin-bottom: 1rem;
}

.project-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: white;
  font-family: var(--font-heading);
  transition: color var(--transition-base);
}

.project-card:hover .project-title {
  color: var(--color-accent);
}

.project-arrow {
  color: #6b7280;
  transition: all var(--transition-base);
}

.project-arrow svg {
  width: 1.25rem;
  height: 1.25rem;
}

.project-card:hover .project-arrow {
  color: var(--color-accent);
  transform: translate(0.25rem, -0.25rem);
}

.project-description {
  color: var(--color-text-secondary);
  margin-bottom: 1.5rem;
  flex-grow: 1;
  line-height: 1.75;
  font-weight: 300;
  font-size: 0.875rem;
}

.project-card .tech-tags {
  margin-top: auto;
}

.project-card .tech-tag {
  background-color: rgba(255, 107, 0, 0.1);
  color: var(--color-accent);
  border-color: rgba(255, 107, 0, 0.2);
}

/* Project GitHub Link */
.project-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-family: var(--font-mono);
  transition: color var(--transition-base);
}

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

.project-link svg {
  width: 1rem;
  height: 1rem;
}

/* Footer */
.footer {
  padding: 3rem 0;
  text-align: center;
  color: #6b7280;
  font-size: 0.875rem;
  font-family: var(--font-mono);
  border-top: 1px solid #222;
  margin-top: 3rem;
}