:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-card: #1a1a1a;
  --text-primary: #e4e4e7;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;
  --accent: #6d5cff;
  --accent-light: #8b7dff;
  --accent-dark: #5a4ae6;
  --border: #27272a;
  --gradient: linear-gradient(135deg, #6d5cff 0%, #a855f7 100%);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.4);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
}

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

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

a:hover {
  color: var(--accent);
}

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 120px 0;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 48px;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 60px;
  height: 4px;
  background: var(--gradient);
  border-radius: 2px;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  font-family: 'Courier New', monospace;
}

.nav-logo:hover {
  color: var(--accent);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 32px;
}

.nav-link {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
}

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

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

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

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

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 0 24px;
}

.hero-container {
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
}

.hero-greeting {
  color: var(--accent);
  font-size: 1.1rem;
  font-weight: 500;
  margin-bottom: 16px;
  font-family: 'Courier New', monospace;
}

.hero-name {
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 16px;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-title {
  font-size: clamp(1.5rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 40px;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-family: inherit;
}

.btn-primary {
  background: var(--gradient);
  color: white;
  box-shadow: 0 4px 15px rgba(109, 92, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(109, 92, 255, 0.4);
  color: white;
}

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

.btn-secondary:hover {
  background: rgba(109, 92, 255, 0.1);
  color: var(--accent-light);
  transform: translateY(-2px);
}

.btn-small {
  padding: 8px 16px;
  font-size: 0.85rem;
}

.btn-outline {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

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

/* About */
.about-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  font-size: 1.05rem;
}

.highlight {
  color: var(--accent-light);
}

.skills-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  margin-top: 16px;
}

.skills-list li {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.skills-list li::before {
  content: '▹ ';
  color: var(--accent);
}

.image-wrapper {
  position: relative;
}

.image-wrapper::before {
  content: '';
  position: absolute;
  top: 12px;
  left: 12px;
  width: 100%;
  height: 100%;
  border: 2px solid var(--accent);
  border-radius: 8px;
  z-index: 0;
}

.image-placeholder {
  width: 100%;
  aspect-ratio: 1;
  background: var(--bg-card);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 1.1rem;
  position: relative;
  z-index: 1;
  overflow: hidden;
}

.image-placeholder::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient);
  opacity: 0.1;
}

/* Skills */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.skill-category {
  background: var(--bg-card);
  padding: 32px;
  border-radius: 12px;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.skill-category:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.skill-category h3 {
  font-size: 1.2rem;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.skill-category ul {
  list-style: none;
}

.skill-category li {
  color: var(--text-secondary);
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}

.skill-category li:last-child {
  border-bottom: none;
}

/* Projects */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 32px;
}

.project-card {
  background: var(--bg-card);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.project-card:hover {
  border-color: var(--accent);
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.project-image {
  width: 100%;
  height: 200px;
  overflow: hidden;
}

.project-placeholder {
  width: 100%;
  height: 100%;
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 1.2rem;
  font-weight: 600;
  transition: var(--transition);
}

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

.project-info {
  padding: 24px;
}

.project-title {
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.project-description {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 16px;
  line-height: 1.6;
}

.project-tech {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.project-tech li {
  background: rgba(109, 92, 255, 0.1);
  color: var(--accent-light);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}

.project-links {
  display: flex;
  gap: 12px;
}

/* Experience */
.timeline {
  position: relative;
  max-width: 800px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border);
}

.timeline-item {
  position: relative;
  padding-left: 50px;
  padding-bottom: 48px;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-marker {
  position: absolute;
  left: 8px;
  top: 8px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--bg-primary);
}

.timeline-content h3 {
  font-size: 1.3rem;
  margin-bottom: 4px;
}

.timeline-company {
  color: var(--accent-light);
  font-weight: 500;
  margin-bottom: 4px;
}

.timeline-date {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.timeline-content ul {
  list-style: none;
}

.timeline-content li {
  color: var(--text-secondary);
  padding: 4px 0;
  font-size: 0.95rem;
}

.timeline-content li::before {
  content: '▹ ';
  color: var(--accent);
}

/* Contact */
.contact-content {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.contact-text {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 40px;
}

.contact-form {
  margin-bottom: 40px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  transition: var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(109, 92, 255, 0.1);
}

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

.btn-submit {
  width: 100%;
}

.contact-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

.contact-link {
  color: var(--text-secondary);
  font-weight: 500;
  position: relative;
}

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

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

.contact-link:hover::after {
  width: 100%;
}

/* Footer */
.footer {
  padding: 32px 0;
  text-align: center;
  border-top: 1px solid var(--border);
}

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

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 1024px) {
  .about-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    max-width: 300px;
    height: 100vh;
    background: var(--bg-secondary);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 32px;
    transition: var(--transition);
    border-left: 1px solid var(--border);
  }

  .nav-menu.active {
    right: 0;
  }

  .nav-link {
    font-size: 1.1rem;
  }

  .hero-name {
    font-size: 2.5rem;
  }

  .skills-grid {
    grid-template-columns: 1fr;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 80px 0;
  }

  .contact-links {
    gap: 16px;
  }
}

@media (max-width: 480px) {
  .hero-name {
    font-size: 2rem;
  }

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

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

  .skills-list {
    grid-template-columns: 1fr;
  }
}

/* Login Page */
.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
  position: relative;
  overflow: hidden;
}

.login-body::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(109, 92, 255, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.login-container {
  width: 100%;
  max-width: 420px;
  position: relative;
  z-index: 1;
}

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px;
  position: relative;
  overflow: hidden;
}

.login-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient);
}

.login-header {
  text-align: center;
  margin-bottom: 32px;
}

.login-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  font-family: 'Courier New', monospace;
  display: inline-block;
  margin-bottom: 24px;
}

.login-logo:hover {
  color: var(--accent);
}

.login-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  background: rgba(109, 92, 255, 0.1);
  border: 1px solid rgba(109, 92, 255, 0.2);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.login-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.login-subtitle {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-family: 'Courier New', monospace;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.login-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.login-field label {
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  font-family: 'Courier New', monospace;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.login-field input {
  width: 100%;
  padding: 14px 18px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  transition: var(--transition);
}

.login-field input::placeholder {
  color: var(--text-muted);
}

.login-field input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(109, 92, 255, 0.1);
}

.login-error {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.2);
  border-radius: 8px;
  color: #f87171;
  font-size: 0.9rem;
}

.login-success {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: 8px;
  color: #34d399;
  font-size: 0.9rem;
}

.login-submit {
  width: 100%;
  margin-top: 4px;
  position: relative;
  min-height: 48px;
}

.login-btn-text,
.login-btn-loader {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.login-spinner {
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.login-footer {
  text-align: center;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.login-back {
  color: var(--text-muted);
  font-size: 0.85rem;
  transition: var(--transition);
}

.login-back:hover {
  color: var(--accent);
}

.login-scanline {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  z-index: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(109, 92, 255, 0.015) 2px,
    rgba(109, 92, 255, 0.015) 4px
  );
}

@media (max-width: 480px) {
  .login-card {
    padding: 28px 20px;
  }

  .login-title {
    font-size: 1.25rem;
  }
}