@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;700&display=swap');

/* --- Design System & CSS Variables --- */
:root {
  --bg-dark: #070913;
  --bg-card: rgba(18, 24, 47, 0.7);
  --bg-nav: rgba(7, 9, 19, 0.8);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(0, 240, 255, 0.3);
  
  --primary: #00f0ff;      /* Cyber Cyan */
  --secondary: #bd00ff;    /* Cyber Purple */
  --accent: #ff007a;       /* Hot Pink */
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --glow-primary: 0 0 20px rgba(0, 240, 255, 0.3);
  --glow-secondary: 0 0 20px rgba(189, 0, 255, 0.3);
  
  --font-sans: 'Outfit', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Base Reset --- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-sans);
  overflow-x: hidden;
  line-height: 1.6;
}

/* Scrollbar Customization */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
  box-shadow: var(--glow-primary);
}

/* --- Typography & Utilities --- */
h1, h2, h3, h4 {
  font-weight: 700;
  letter-spacing: -0.02em;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.glow-text {
  text-shadow: 0 0 10px rgba(0, 240, 255, 0.5);
}

/* Background Blur Lights */
.bg-glow {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  filter: blur(150px);
  z-index: -1;
  pointer-events: none;
  opacity: 0.35;
}
.bg-glow-1 {
  top: -100px;
  right: -100px;
  background: var(--primary);
}
.bg-glow-2 {
  bottom: 20%;
  left: -200px;
  background: var(--secondary);
}

/* --- Navigation Header --- */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--bg-nav);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  padding: 1.25rem 2rem;
  transition: var(--transition-normal);
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  text-decoration: none;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: var(--glow-primary);
  display: inline-block;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 2.5rem;
}

nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 1rem;
  transition: var(--transition-fast);
  position: relative;
  padding: 0.25rem 0;
}

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

nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transition: var(--transition-fast);
}

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

.contact-btn {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: #000;
  font-weight: 600;
  border: none;
  border-radius: 50px;
  padding: 0.6rem 1.5rem;
  cursor: pointer;
  transition: var(--transition-normal);
  text-decoration: none;
  font-size: 0.95rem;
}

.contact-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 20px rgba(0, 240, 255, 0.4);
  color: #fff;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  z-index: 1001;
}
.menu-toggle span {
  width: 25px;
  height: 2px;
  background: var(--text-main);
  transition: var(--transition-fast);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 8rem 2rem 4rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  align-items: center;
  width: 100%;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.hero-subtitle {
  font-family: var(--font-mono);
  color: var(--primary);
  font-size: 1.1rem;
  letter-spacing: 0.1em;
}

.hero-title {
  font-size: 4rem;
  line-height: 1.1;
  font-weight: 800;
}

.hero-description {
  color: var(--text-muted);
  font-size: 1.15rem;
  max-width: 600px;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.btn {
  padding: 0.8rem 2rem;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition-normal);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: #000;
  box-shadow: var(--glow-primary);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0, 240, 255, 0.4);
  color: #fff;
}

.btn-secondary {
  background: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  border-color: var(--primary);
  box-shadow: var(--glow-primary);
  transform: translateY(-3px);
}

/* Hero Visual Frame */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.avatar-wrapper {
  position: relative;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  padding: 8px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  box-shadow: 0 0 40px rgba(0, 240, 255, 0.2);
  animation: float 6s ease-in-out infinite;
}

.avatar-image {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--bg-dark);
}

.tech-icon-badge {
  position: absolute;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: rgba(18, 24, 47, 0.9);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: 0 10px 20px rgba(0,0,0,0.3);
  animation: float-badge 4s ease-in-out infinite;
}

.badge-1 { top: 10%; left: -10px; animation-delay: 0s; }
.badge-2 { bottom: 20%; left: -20px; animation-delay: 1.5s; }
.badge-3 { top: 20%; right: -20px; animation-delay: 0.8s; }
.badge-4 { bottom: 10%; right: 0; animation-delay: 2.3s; }

/* --- Section Layouts --- */
section {
  padding: 6rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
}

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

.section-subtitle {
  font-family: var(--font-mono);
  color: var(--primary);
  font-size: 0.9rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  display: block;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
}

/* --- About Section --- */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
}

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

.about-p {
  color: var(--text-muted);
  font-size: 1.1rem;
}

.about-info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.info-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: var(--transition-normal);
  backdrop-filter: blur(10px);
}

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

.info-label {
  font-family: var(--font-mono);
  color: var(--text-dim);
  font-size: 0.85rem;
}

.info-value {
  font-weight: 600;
  font-size: 1.1rem;
}

/* --- Skills Section --- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.skill-category {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2.5rem 2rem;
  transition: var(--transition-normal);
  backdrop-filter: blur(10px);
}

.skill-category:hover {
  border-color: var(--border-hover);
  box-shadow: 0 10px 30px rgba(0, 240, 255, 0.05);
}

.category-title {
  font-size: 1.4rem;
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.category-title i {
  color: var(--primary);
  font-size: 1.6rem;
}

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

.skill-item {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.skill-info {
  display: flex;
  justify-content: space-between;
  font-weight: 500;
}

.skill-name {
  color: var(--text-main);
}

.skill-percentage {
  color: var(--primary);
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.skill-progress-bg {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
  overflow: hidden;
}

.skill-progress-bar {
  height: 100%;
  border-radius: 10px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  width: 0; /* Dynamic loading animation via JS */
  transition: width 1.5s cubic-bezier(0.1, 0.8, 0.3, 1);
}

/* --- Projects Section --- */
.project-filters {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
}

.filter-btn {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border-color);
  padding: 0.6rem 1.5rem;
  border-radius: 50px;
  cursor: pointer;
  font-weight: 500;
  transition: var(--transition-fast);
}

.filter-btn:hover, .filter-btn.active {
  background: rgba(0, 240, 255, 0.1);
  color: var(--primary);
  border-color: var(--primary);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
  transition: var(--transition-normal);
  backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.project-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-hover);
  box-shadow: 0 15px 35px rgba(0, 240, 255, 0.1);
}

.project-image-box {
  width: 100%;
  height: 200px;
  overflow: hidden;
  position: relative;
  background: #121829;
}

.project-image-box::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, transparent 40%, rgba(7, 9, 19, 0.8) 100%);
}

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

.project-card:hover .project-img {
  transform: scale(1.1);
}

.project-tags {
  position: absolute;
  top: 1rem;
  left: 1rem;
  display: flex;
  gap: 0.5rem;
  z-index: 1;
}

.tag {
  background: rgba(7, 9, 19, 0.85);
  color: var(--primary);
  border: 1px solid rgba(0, 240, 255, 0.3);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  backdrop-filter: blur(5px);
}

.project-content {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  flex-grow: 1;
}

.project-title {
  font-size: 1.35rem;
  color: var(--text-main);
  transition: var(--transition-fast);
}

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

.project-description {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.5;
  flex-grow: 1;
}

.project-links {
  display: flex;
  gap: 1.25rem;
  margin-top: 0.5rem;
}

.project-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 500;
  transition: var(--transition-fast);
}

.project-link:hover {
  color: var(--primary);
  text-shadow: var(--glow-primary);
}

/* --- Contact Section --- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 4rem;
}

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

.contact-p {
  color: var(--text-muted);
  font-size: 1.1rem;
}

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

.contact-item {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.contact-icon {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1.25rem;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.contact-text-label {
  font-family: var(--font-mono);
  color: var(--text-dim);
  font-size: 0.8rem;
  text-transform: uppercase;
}

.contact-value {
  font-weight: 600;
  color: var(--text-main);
  text-decoration: none;
  transition: var(--transition-fast);
}

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

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.social-btn {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 1.3rem;
  text-decoration: none;
  transition: var(--transition-normal);
}

.social-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: var(--glow-primary);
  transform: translateY(-3px);
}

/* Contact Form */
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2.5rem;
  backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

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

.form-group label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
}

.form-control {
  background: rgba(7, 9, 19, 0.6);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0.9rem 1.25rem;
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 1rem;
  transition: var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.15);
}

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

.form-submit-btn {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: #000;
  border: none;
  border-radius: 8px;
  padding: 1rem;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition-normal);
}

.form-submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 20px rgba(0, 240, 255, 0.4);
  color: #fff;
}

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

/* Form success message popup */
.form-message {
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  font-size: 0.95rem;
  display: none;
}
.form-message.success {
  display: block;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #34d399;
}

/* --- Footer --- */
footer {
  border-top: 1px solid var(--border-color);
  padding: 3rem 2rem;
  text-align: center;
  background: rgba(7, 9, 19, 0.5);
  margin-top: 4rem;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: center;
}

.footer-logo {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
}

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

.footer-text {
  color: var(--text-dim);
  font-size: 0.9rem;
}

/* --- Keyframe Animations --- */
@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-12px); }
  100% { transform: translateY(0px); }
}

@keyframes float-badge {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-8px); }
  100% { transform: translateY(0px); }
}

/* --- Responsive Media Queries --- */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }
  .hero-content {
    align-items: center;
  }
  .hero-title {
    font-size: 3.25rem;
  }
  .hero-visual {
    order: -1;
  }
  .about-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  header {
    padding: 1rem 1.5rem;
  }
  nav {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background: var(--bg-dark);
    padding: 3rem 2rem;
    transition: var(--transition-normal);
    z-index: 999;
    border-top: 1px solid var(--border-color);
  }
  nav.open {
    left: 0;
  }
  nav ul {
    flex-direction: column;
    align-items: center;
    gap: 2rem;
  }
  nav a {
    font-size: 1.25rem;
  }
  .menu-toggle {
    display: flex;
  }
  .contact-btn {
    display: none;
  }
  .hero-title {
    font-size: 2.5rem;
  }
  .avatar-wrapper {
    width: 260px;
    height: 260px;
  }
  .tech-icon-badge {
    width: 44px;
    height: 44px;
    font-size: 1.25rem;
  }
  .about-info-grid {
    grid-template-columns: 1fr;
  }
}