/* CSS Custom Properties */
:root {
  --font-size: 14px;
  --background: #ffffff;
  --foreground: #252525;
  --card: #ffffff;
  --muted: #ececf0;
  --muted-foreground: #717182;
  --accent: #e9ebef;
  --primary: #030213;
  --primary-foreground: #ffffff;
  --border: rgba(0, 0, 0, 0.1);
  --radius: 0.625rem;
  --font-weight-medium: 500;
  --font-weight-normal: 400;
}

.dark {
  --background: #252525;
  --foreground: #f8f8f8;
  --card: #252525;
  --muted: #444444;
  --muted-foreground: #b3b3b3;
  --accent: #444444;
  --primary: #f8f8f8;
  --primary-foreground: #333333;
  --border: #444444;
}

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

html {
  font-size: var(--font-size);
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(135deg, #f8fafc 0%, #e0e7ff 100%);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  color: var(--foreground);
  line-height: 1.5;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.dark body {
  background: linear-gradient(135deg, #232946 0%, #121629 100%);
}

/* Typography */
h1 {
  font-size: 3rem;
  font-weight: var(--font-weight-medium);
  line-height: 1.2;
  letter-spacing: 0.01em;
}

h2 {
  font-size: 2rem;
  font-weight: var(--font-weight-medium);
  line-height: 1.3;
}

h3 {
  font-size: 1.25rem;
  font-weight: var(--font-weight-medium);
  line-height: 1.4;
}

p {
  font-size: 1rem;
  font-weight: var(--font-weight-normal);
  line-height: 1.6;
}

/* Container */
.container {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(221, 221, 221, 0); /* semi-transparent */
  backdrop-filter: blur(5px) saturate(180%);
  -webkit-backdrop-filter: blur(5px) saturate(180%);
  /* border-bottom: 1.5px solid var(--border); */
  box-shadow: 0 4px 24px -8px #6366f133;
  transition: background 0.3s, box-shadow 0.3s;
}

.dark .nav {
  background: rgba(11, 11, 11, 0);
  backdrop-filter: blur(5px) saturate(180%);
  -webkit-backdrop-filter: blur(5px) saturate(180%);
  /* border-bottom: 1.5px solid #444; */
  box-shadow: 0 4px 24px -8px #23294655;
}

.nav-container {
  max-width: 72rem;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
}

.nav-logo {
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: -0.03em;
  color: #6366f1;
  background: linear-gradient(90deg, #6366f1 0%, #818cf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-emphasis-color: transparent;
  filter: drop-shadow(0 2px 8px #6366f122);
  transition: filter 0.3s;
}

.nav-logo:hover {
  filter: drop-shadow(0 4px 16px #6366f1aa);
  cursor: pointer;
  letter-spacing: 0.05em;
}

.theme-toggle {
  width: 2.5rem;
  height: 2.5rem;
  border: none;
  border-radius: 50%;
  background: linear-gradient(135deg, #e0e7ff 0%, #f8fafc 100%);
  box-shadow: 0 2px 8px #6366f122;
  color: #6366f1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.3s, box-shadow 0.3s, color 0.3s;
  position: relative;
}

.theme-toggle:hover {
  background: linear-gradient(135deg, #6366f1 0%, #818cf8 100%);
  color: #fff;
  box-shadow: 0 4px 16px #6366f1aa;
}

.theme-toggle svg {
  width: 1.3rem;
  height: 1.3rem;
  position: absolute;
  transition: all 0.3s;
}

/* Optional: Add a subtle underline animation on nav hover (if you add nav links) */
.nav-link {
  position: relative;
  color: var(--foreground);
  text-decoration: none;
  font-weight: 500;
  margin-left: 2rem;
  transition: color 0.2s;
}
.nav-link:after {
  content: "";
  display: block;
  height: 2px;
  width: 0;
  background: linear-gradient(90deg, #6366f1 0%, #818cf8 100%);
  transition: width 0.3s;
  border-radius: 2px;
  margin-top: 4px;
}
.nav-link:hover {
  color: #6366f1;
}
.nav-link:hover:after {
  width: 100%;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  transition: all 0.3s ease;
  border: 1px solid transparent;
  cursor: pointer;
  padding: 0.75rem 2rem;
  font-size: 1rem;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn-primary {
  box-shadow: 0 2px 16px 0 #6366f155;
  background: linear-gradient(90deg, #6366f1 0%, #818cf8 100%);
  color: #fff;
  border: none;
}

.btn-primary:hover {
  background: linear-gradient(90deg, #818cf8 0%, #6366f1 100%);
  box-shadow: 0 4px 24px 0 #6366f1aa;
}

.btn-outline {
  border-color: var(--border);
  background-color: transparent;
  color: var(--foreground);
}

.btn-outline:hover {
  background-color: var(--accent);
}

/* Hero Section */
.hero {
  position: relative;
  overflow: hidden;
  min-height: 520px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-art-bg {
  position: absolute;
  top: -120px;
  left: 50%;
  transform: translateX(-50%);
  width: 1200px;
  height: 900px;
  z-index: 0;
  pointer-events: none;
  user-select: none;
  opacity: 0.85;
  filter: blur(6px) saturate(120%);
  transition: opacity 0.4s;
}

@media (max-width: 900px) {
  .hero-art-bg {
    width: 100vw;
    height: 60vw;
    min-width: 600px;
    min-height: 400px;
  }
}

.dark .hero-art-bg {
  opacity: 0.6;
  filter: blur(10px) saturate(180%);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 3.5rem 2.5rem;
  max-width: 600px;
  width: 90%;
  min-width: 320px;
  min-height: 340px;
  /* margin: auto; */
  margin-top: 4%;
  background: rgba(255,255,255,0.82);
  border-radius: 2rem;
  box-shadow: 0 8px 32px rgba(99,102,241,0.10);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: box-shadow 0.3s, background 0.3s;
}

@media (min-width: 700px) {
  .hero-content {
    padding: 4rem 3.5rem;
    max-width: 700px;
    min-height: 380px;
  }
}

@media (min-width: 600px) {
  .hero-content {
    padding: 3rem 2.5rem;
    max-width: 440px;
  }
}

.dark .hero-content {
  background: rgba(44,44,66,0.7);
}

.hero-content:before {
  content: "";
  position: absolute;
  inset: -3px;
  z-index: -1;
  border-radius: 1.5rem;
  background: linear-gradient(90deg, #6366f1 0%, #a5b4fc 100%);
  opacity: 0.5;
}

.dark .hero-content:before {
  background: linear-gradient(90deg, #6366f1 0%, #232946 100%);
  
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--muted-foreground);
  margin-bottom: 2rem;
}

.hero-description {
  font-size: 1.125rem;
  margin-bottom: 2rem;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: center;
}

@media (min-width: 640px) {
  .hero-buttons {
    flex-direction: row;
  }
}

/* About Section */
.about {
  background: linear-gradient(120deg, #e0e7ff 0%, #f8fafc 100%);
  border-radius: 1.5rem;
  box-shadow: 0 8px 32px rgba(99,102,241,0.08);
  padding: 3rem 0;
  margin: 3rem 0;
  position: relative;
  overflow: hidden;
}

.dark .about {
  background: linear-gradient(120deg, #232946 0%, #121629 100%);
}

.about:before {
  content: "";
  position: absolute;
  top: -60px;
  left: -60px;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, #6366f1 0%, transparent 70%);
  opacity: 0.12;
  z-index: 0;
  pointer-events: none;
}

.about:after {
  content: "";
  position: absolute;
  bottom: -60px;
  right: -60px;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, #818cf8 0%, transparent 70%);
  opacity: 0.10;
  z-index: 0;
  pointer-events: none;
}

.about-grid {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  position: relative;
  z-index: 1;
}

@media (min-width: 768px) {
  .about-grid {
    flex-direction: row;
    gap: 4rem;
    align-items: flex-start;
  }
}

@media (min-width: 900px) {
  .about-grid {
    align-items: stretch;
  }
  .about-text, .skills {
    flex: 1 1 0;
    max-width: 50%;
    min-width: 0;
    box-sizing: border-box;
  }
  .skills {
    width: 100%;
    max-width: 100%;
  }
}

.about-text {
  flex: 2;
  padding: 2rem;
  background: rgba(255,255,255,0.7);
  border-radius: 1rem;
  box-shadow: 0 2px 16px rgba(99,102,241,0.06);
  position: relative;
  z-index: 1;
  transition: box-shadow 0.3s;
}
.dark .about-text {
  background: rgba(44,44,66,0.7);
}

.about-text h2 {
  font-size: 2.2rem;
  font-weight: 700;
  color: #6366f1;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
  background: linear-gradient(90deg, #6366f1 0%, #818cf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about-text p {
  font-size: 1.1rem;
  color: var(--foreground);
  margin-bottom: 1.2rem;
  line-height: 1.7;
  letter-spacing: 0.01em;
}

.skills {
  flex: 1.2;
  padding: 2rem 1.5rem;
  background: rgba(255,255,255,0.7);
  border-radius: 1rem;
  box-shadow: 0 2px 16px rgba(99,102,241,0.06);
  position: relative;
  z-index: 1;
  transition: box-shadow 0.3s;
}
.dark .skills {
  background: rgba(44,44,66,0.7);
}

.skills h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: #6366f1;
  margin-bottom: 1rem;
  letter-spacing: 0.01em;
}

.skills-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.3rem;
  justify-content: flex-start;
  align-items: flex-start;
  width: 100%;
  margin-top: 0.5rem;
  margin-bottom: 1rem;
  row-gap: 1rem;
  column-gap: 1.3rem;
}

.skill-item {
  padding: 0.7rem 1.5rem;
  border-radius: 1.5rem;
  background: linear-gradient(90deg, #e0e7ff 0%, #f8fafc 100%);
  color: #3730a3;
  font-weight: 600;
  font-size: 1.05rem;
  border: none;
  margin: 0;
  transition: 
    background 0.2s,
    color 0.2s,
    box-shadow 0.2s,
    transform 0.18s cubic-bezier(.77,0,.18,1);
  cursor: pointer;
  display: inline-block;
  text-align: center;
  min-width: 110px;
  letter-spacing: 0.01em;
  box-shadow: 0 2px 12px 0 rgba(99,102,241,0.10);
  position: relative;
  overflow: hidden;
}

.skill-item::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  border-radius: 1.5rem;
  background: linear-gradient(120deg, #6366f1 0%, #818cf8 100%);
  opacity: 0;
  transition: opacity 0.2s;
  z-index: 0;
}

.skill-item:hover::before {
  opacity: 0.18;
}

.skill-item:hover {
  background: linear-gradient(90deg, #6366f1 0%, #818cf8 100%);
  color: #fff;  
  transform: scale(1.08) rotate(-2deg);
  box-shadow: 0 6px 24px #6366f1aa;
}

.skill-item:active {
  transform: scale(0.97);
  box-shadow: 0 2px 8px #6366f1aa;
}

/* Projects Section */
.projects {
  padding: 5rem 1.5rem;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

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

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

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

.project-card {
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow 0.3s ease;
}

.project-card:hover {
  box-shadow: 0 16px 40px -8px #6366f1cc, 0 4px 16px -2px #6366f1aa;
  transform: translateY(-8px) scale(1.03) rotate(-1deg);
}

.project-image {
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

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

.project-content {
  padding: 1.5rem;
}

.project-content h3 {
  margin-bottom: 0.5rem;
}

.project-content p {
  color: var(--muted-foreground);
  margin-bottom: 1rem;
}

.project-tech {
  font-size: 0.875rem;
  margin-bottom: 1.5rem !important;
}

/* Contact Section */
.contact {
  padding: 5rem 1.5rem;
  background-color: rgba(236, 236, 240, 0.3);
}

.dark .contact {
  background-color: rgba(68, 68, 68, 0.3);
}

.contact-content {
  max-width: 32rem;
  margin: 0 auto;
  text-align: center;
}

.contact-content h2 {
  margin-bottom: 1.5rem;
}

.contact-content > p {
  color: var(--muted-foreground);
  margin-bottom: 2rem;
}

.contact-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 3rem;
}

@media (min-width: 640px) {
  .contact-buttons {
    flex-direction: row;
  }
}

.copyright {
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

/* Responsive Typography */
@media (max-width: 768px) {
  h1 {
    font-size: 2.5rem;
  }
  
  h2 {
    font-size: 1.75rem;
  }
  
  .hero-subtitle {
    font-size: 1.125rem;
  }
  
  .hero-description {
    font-size: 1rem;
  }
}

@media (max-width: 900px) {
  .about-grid, .projects-grid {
    flex-direction: column;
    gap: 2rem;
  }
  .about-text, .skills {
    width: 100%;
  }
}
@media (max-width: 600px) {
  .nav-container, .hero-content, .container {
    padding: 0 1rem;
  }
  .hero h1 {
    font-size: 2rem;
  }
  .project-card {
    flex-direction: column;
  }
}

/* Smooth transitions for theme switching */
* {
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* Smooth scrolling for anchor links */
html {
  scroll-behavior: smooth;
}

/* Scroll-to-top button styles */
#scrollTopBtn {
  display: none;
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 100;
  background: linear-gradient(135deg, #6366f1 0%, #818cf8 100%);
  color: #fff;
  box-shadow: 0 2px 16px #6366f1aa;
  border: none;
  border-radius: 50%;
  width: 48px;
  height: 48px;
  font-size: 2rem;
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s, transform 0.2s;
}
#scrollTopBtn:hover {
  background: linear-gradient(135deg, #818cf8 0%, #6366f1 100%);
  box-shadow: 0 4px 24px #6366f1cc;
  transform: scale(1.1);
}

/* Modal Styles */
.modal {
  display: none;
  position: fixed;
  z-index: 200;
  left: 0; top: 0; width: 100vw; height: 100vh;
  background: rgba(0,0,0,0.4);
  align-items: center; justify-content: center;
}
.modal-content {
  background: var(--card);
  color: var(--foreground);
  margin: auto;
  padding: 2rem;
  border-radius: var(--radius);
  max-width: 400px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
  position: relative;
  animation: fadeInUp 0.4s;
  border: 2px solid transparent;
  background-clip: padding-box;
  position: relative;
}

.modal-content:before {
  content: "";
  position: absolute;
  inset: -2px;
  z-index: -1;
  border-radius: var(--radius);
  background: linear-gradient(90deg, #6366f1 0%, #a5b4fc 100%);
  opacity: 0.5;
}

.close-modal {
  position: absolute;
  top: 1rem; right: 1rem;
  font-size: 2rem;
  cursor: pointer;
  color: var(--muted-foreground);
}

/* 1. Add a modern gradient background */
/* 2. Add glassmorphism to cards and nav */
/* 3. Add a soft shadow and border to skill items */
/* 4. Add a colorful gradient border to hero section */
/* 5. Animate hero title with a fade-in and slight slide */
/* 6. Add a floating effect to project cards on hover */
/* 7. Add a subtle gradient to section backgrounds */
/* 8. Add a soft glow to primary buttons */
/* 9. Add a gradient border to modal */
/* 10. Add a floating animated blob background for fun */
/* 11. Make scroll-to-top button more modern */
/* 12. Add a soft fade-in for all sections */

.hero-avatar {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid #fff;
  box-shadow: 0 2px 16px rgba(99,102,241,0.12);
  margin-bottom: 1.5rem;
  display: block;
  margin-left: auto;
  margin-right: auto;
  background: #e0e7ff;
}

.hero-avatar img {
    opacity: 1;
}
.view-bottom{
    align-items: baseline;
}