/* Base Styles & Variables */
:root {
  /* Color palette */
  --color-primary: #6366f1;
  --color-primary-dark: #4f46e5;
  --color-secondary: #10b981;
  --color-dark: #0f172a;
  --color-dark-light: #1e293b;
  --color-light: #f8fafc;
  --color-gray: #94a3b8;
  --color-gray-light: #e2e8f0;

  /* Typography */
  --font-base: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "Space Mono", monospace;
  --text-base: 1rem;
  --text-scale-ratio: 1.25;
  --text-xs: calc(var(--text-base) / var(--text-scale-ratio));
  --text-sm: calc(var(--text-xs) * var(--text-scale-ratio));
  --text-md: calc(var(--text-sm) * var(--text-scale-ratio));
  --text-lg: calc(var(--text-md) * var(--text-scale-ratio));
  --text-xl: calc(var(--text-lg) * var(--text-scale-ratio));
  --text-xxl: calc(var(--text-xl) * var(--text-scale-ratio));
  --text-xxxl: calc(var(--text-xxl) * var(--text-scale-ratio));

  /* Spacing */
  --space-unit: 1rem;
  --space-xs: calc(var(--space-unit) / 2);
  --space-sm: var(--space-unit);
  --space-md: calc(var(--space-unit) * 1.5);
  --space-lg: calc(var(--space-unit) * 2);
  --space-xl: calc(var(--space-unit) * 3);
  --space-xxl: calc(var(--space-unit) * 4);

  /* Other */
  --border-radius: 8px;
  --border-radius-lg: 12px;
  --box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
    0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --box-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
    0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-base);
  line-height: 1.6;
  color: var(--color-gray-light);
  background-color: var(--color-dark);
  overflow-x: hidden;
}

h1,
h2,
h3,
h4 {
  line-height: 1.2;
  font-weight: 700;
}

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

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

ul {
  list-style: none;
}

/* Utility Classes */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.btn {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--border-radius);
  font-weight: 500;
  transition: var(--transition);
  cursor: pointer;
}

.btn-primary {
  background-color: #3232fb;
  color: var(--color-light);
  border: 2px solid var(--color-primary);
}

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

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

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

.highlight {
  color: var(--color-primary);
  position: relative;
  display: inline-block;
}

.highlight::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 30%;
  background-color: rgba(99, 102, 241, 0.3);
  z-index: -1;
  transition: var(--transition);
}

.highlight:hover::after {
  height: 50%;
}

.section-title {
  font-size: var(--text-xxl);
  margin-bottom: var(--space-sm);
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 50%;
  height: 4px;
  background-color: var(--color-primary);
  border-radius: 2px;
}

.section-subtitle {
  font-size: var(--text-md);
  color: var(--color-gray);
  margin-bottom: var(--space-xl);
  max-width: 600px;
}

/* Header Styles */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: var(--space-sm) 0;
  background-color: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(10px);
  z-index: 100;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.logo {
  font-size: var(--text-lg);
  font-weight: 700;
}

.logo span {
  color: var(--color-primary);
}

.menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
  z-index: 101;
}

.menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-light);
  margin-bottom: 5px;
  transition: var(--transition);
}

.menu-btn.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-btn.open span:nth-child(2) {
  opacity: 0;
}

.menu-btn.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

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

nav a {
  font-weight: 500;
  position: relative;
}

nav a:not(.btn-outline)::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: var(--transition);
}

nav a:not(.btn-outline):hover::after {
  width: 100%;
}

/* Hero Styles */
.hero {
  padding: calc(var(--space-xxl) * 1.5) 0 var(--space-xxl);
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.hero-title {
  font-size: var(--text-xxxl);
  margin-bottom: var(--space-md);
  line-height: 1.1;
}

.hero-subtitle {
  font-size: var(--text-lg);
  color: var(--color-gray);
  margin-bottom: var(--space-lg);
}

.hero-cta {
  display: flex;
  gap: var(--space-sm);
}

.hero-image {
  position: relative;
}

.code-window {
  background-color: var(--color-dark-light);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--box-shadow-lg);
  transform: perspective(1000px) rotateY(-10deg);
  transition: var(--transition);
}

.code-window:hover {
  transform: perspective(1000px) rotateY(-5deg);
}

.window-header {
  padding: var(--space-xs) var(--space-sm);
  background-color: rgba(0, 0, 0, 0.2);
  display: flex;
  gap: var(--space-xs);
}

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

.dot.red {
  background-color: #ef4444;
}

.dot.yellow {
  background-color: #f59e0b;
}

.dot.green {
  background-color: #10b981;
}

pre {
  margin: 0;
  padding: var(--space-md);
  overflow-x: auto;
}

code {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-light);
  line-height: 1.6;
}

/* Skills Styles */
.skills {
  padding: var(--space-xxl) 0;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
}

.skill-card {
  background-color: var(--color-dark-light);
  padding: var(--space-lg);
  border-radius: var(--border-radius);
  transition: var(--transition);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.skill-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--box-shadow-lg);
  border-color: var(--color-primary);
}

.skill-icon {
  font-size: var(--text-xxl);
  margin-bottom: var(--space-sm);
}

.skill-card h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-sm);
}

.skill-card ul {
  margin-top: var(--space-md);
}

.skill-card li {
  margin-bottom: var(--space-xs);
  position: relative;
  padding-left: var(--space-sm);
}

.skill-card li::before {
  content: "▹";
  position: absolute;
  left: 0;
  color: var(--color-primary);
}

/* Projects Styles */
.projects {
  padding: var(--space-xxl) 0;
}

.projects-grid {
  display: grid;
  gap: var(--space-xl);
}

.project-card {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
  align-items: center;
  background-color: var(--color-dark-light);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--transition);
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--box-shadow-lg);
  border-color: var(--color-primary);
}

.project-image {
  overflow: hidden;
}

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

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

.project-content {
  padding: var(--space-lg);
}

.project-content h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-sm);
}

.project-content p {
  margin-bottom: var(--space-md);
  color: var(--color-gray);
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.project-tech li {
  background-color: rgba(99, 101, 241, 0.534);
  padding: var(--space-xs) var(--space-sm);
  border-radius: 20px;
  font-size: var(--text-xs);
  font-weight: 500;
}

/* Testimonials Styles */
.testimonials {
  padding: var(--space-xxl) 0;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
}

.testimonial-card {
  background-color: var(--color-dark-light);
  padding: var(--space-lg);
  border-radius: var(--border-radius);
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--transition);
}

.testimonial-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--box-shadow-lg);
  border-color: var(--color-primary);
}

.testimonial-content {
  margin-bottom: var(--space-md);
  position: relative;
}

.testimonial-content::before {
  content: '"';
  position: absolute;
  top: -20px;
  left: -10px;
  font-size: 4rem;
  color: rgba(99, 102, 241, 0.1);
  z-index: 0;
  font-family: serif;
}

.testimonial-content p {
  position: relative;
  z-index: 1;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.testimonial-author img {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  object-fit: cover;
}

.testimonial-author strong {
  display: block;
}

.testimonial-author span {
  font-size: var(--text-xs);
  color: var(--color-gray);
}

/* CTA Styles */
.cta {
  padding: var(--space-xxl) 0;
  background-color: var(--color-dark-light);
  text-align: center;
}

.cta-title {
  font-size: var(--text-xxl);
  margin-bottom: var(--space-sm);
}

.cta-subtitle {
  font-size: var(--text-md);
  color: var(--color-gray);
  max-width: 600px;
  margin: 0 auto var(--space-lg);
}

/* Footer Styles */
.footer {
  padding: var(--space-xl) 0 var(--space-md);
  background-color: var(--color-dark-light);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-brand p {
  margin-top: var(--space-sm);
  color: var(--color-gray);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-xl);
}

.footer h3 {
  font-size: var(--text-md);
  margin-bottom: var(--space-sm);
  color: var(--color-light);
}

.footer ul li {
  margin-bottom: var(--space-xs);
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  padding-top: var(--space-md);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-size: var(--text-xs);
  color: var(--color-gray);
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-content,
.hero-image,
.section-title,
.section-subtitle,
.skill-card,
.project-card,
.testimonial-card {
  animation: fadeIn 0.6s ease forwards;
}

.skill-card:nth-child(2),
.project-card:nth-child(2),
.testimonial-card:nth-child(2) {
  animation-delay: 0.2s;
}

.skill-card:nth-child(3),
.project-card:nth-child(3),
.testimonial-card:nth-child(3) {
  animation-delay: 0.4s;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  :root {
    --text-scale-ratio: 1.2;
  }

  .hero .container {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .hero-content {
    order: 2;
    text-align: center;
  }

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

  .hero-title::after {
    left: 50%;
    transform: translateX(-50%);
  }

  .section-title::after {
    left: 50%;
    transform: translateX(-50%);
    width: 30%;
  }
}

@media (max-width: 768px) {
  .menu-btn {
    display: block;
  }

  nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    height: 100vh;
    background-color: var(--color-dark-light);
    padding: var(--space-xxl) var(--space-md);
    transition: var(--transition);
    border-left: 1px solid rgba(255, 255, 255, 0.1);
  }

  nav.active {
    right: 0;
  }

  nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
    margin-top: var(--space-xl);
  }

  .hero {
    padding-top: calc(var(--space-xxl) * 2);
  }

  .hero-title {
    font-size: var(--text-xxl);
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-xs);
  }
}

@media (max-width: 480px) {
  :root {
    --text-scale-ratio: 1.15;
  }

  .hero-cta {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    text-align: center;
  }
}

/* Education Styles */
.education {
  padding: var(--space-xxl) 0;
  background-color: var(--color-dark);
}

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

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

.education-card {
  position: relative;
  width: calc(50% - var(--space-lg));
  padding: var(--space-lg);
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--border-radius);
  margin-bottom: var(--space-xl);
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--transition);
}

.education-card:hover {
  transform: translateY(-5px);
  border-color: var(--color-primary);
}

.education-card:nth-child(odd) {
  margin-right: auto;
}

.education-card:nth-child(even) {
  margin-left: auto;
}

.education-date {
  position: absolute;
  top: -15px;
  font-weight: 700;
  background: var(--color-dark);
  padding: 0 var(--space-sm);
  color: var(--color-primary);
}

.education-content h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-xs);
}

.institution {
  margin-bottom: var(--space-md);
  font-weight: 500;
}

.achievements li {
  position: relative;
  padding-left: var(--space-md);
  margin-bottom: var(--space-xs);
}

.achievements li::before {
  content: "▹";
  position: absolute;
  left: 0;
  color: var(--color-primary);
}

/* Responsive */
@media (max-width: 768px) {
  .education-timeline::before {
    left: 30px;
  }

  .education-card {
    width: calc(100% - 60px);
    margin-left: 60px !important;
  }

  .education-date {
    left: -85px;
    top: 20px;
  }
}