/* Dinesh Govind - Developer Portfolio */
/* Refined minimal aesthetic with warm amber accents */

:root {
  --bg-primary: #0a0a0b;
  --bg-secondary: #121214;
  --bg-tertiary: #1a1a1d;
  --text-primary: #f4f4f5;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;
  --accent: #f59e0b;
  --accent-hover: #fbbf24;
  --accent-muted: rgba(245, 158, 11, 0.15);
  --border: rgba(255, 255, 255, 0.08);
  --font-display: 'Syne', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
  --bg-primary: #fafafa;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f4f4f5;
  --text-primary: #18181b;
  --text-secondary: #52525b;
  --text-muted: #71717a;
  --accent: #d97706;
  --accent-hover: #b45309;
  --accent-muted: rgba(217, 119, 6, 0.12);
  --border: rgba(0, 0, 0, 0.08);
}

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

html {
  scroll-behavior: smooth;
}

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

/* Subtle noise texture */
.noise-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 11, 0.75);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

[data-theme="light"] .header {
  background: rgba(250, 250, 250, 0.85);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.25rem 2rem;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

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

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

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}

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

.theme-toggle {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition);
}

.theme-toggle:hover {
  color: var(--accent);
  border-color: var(--accent-muted);
}

.theme-icon.moon { display: none; }
.theme-icon.sun { display: inline; }
[data-theme="light"] .theme-icon.moon { display: inline; }
[data-theme="light"] .theme-icon.sun { display: none; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 8rem 2rem 3rem;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 15%;
  right: 5%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--accent-muted) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-greeting {
  font-size: 1rem;
  font-weight: 500;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-bottom: 0.75rem;
  opacity: 0;
  animation: fadeUp 0.8s ease forwards;
}

.hero-name {
  font-family: var(--font-mono);
  font-size: clamp(3.5rem, 10vw, 6.5rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.1s forwards;
}

.hero-role {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.2s forwards;
}

.hero-bio {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin-bottom: 2.5rem;
  line-height: 1.7;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.25s forwards;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.3s forwards;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: var(--transition);
}

.btn-primary {
  background: var(--accent);
  color: #0a0a0b;
}

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

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

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.hero-social {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.35s forwards;
  justify-content: center;
}

.hero-social a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}

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

.hero-social .social-icon {
  display: inline-flex;
  padding: 0.25rem;
}

.hero-social .social-icon img,
.hero-social .social-icon svg {
  opacity: 0.85;
  transition: opacity var(--transition);
  display: block;
}

.hero-social .social-icon:hover img,
.hero-social .social-icon:hover svg {
  opacity: 1;
}

[data-theme="dark"] .hero-social .social-icon img {
  filter: invert(1);
}

/* Sections */
.section {
  padding: 3.5rem 2rem;
  max-width: 900px;
  margin: 0 auto;
}

#about.section {
  padding-top: 2rem;
}

.section-center {
  text-align: center;
}

.section-center .section-subtitle {
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
}

/* About */
.about-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.about-text {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.75;
}

.about-details {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1rem;
}

.detail-item {
  display: flex;
  gap: 1rem;
  align-items: baseline;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
}

.detail-label {
  color: var(--text-muted);
  min-width: 80px;
  font-size: 0.9rem;
}

.detail-value {
  font-weight: 500;
  color: var(--text-primary);
  text-decoration: none;
}

.detail-value:hover {
  color: var(--accent);
}

.about-focus {
  color: var(--text-primary);
  font-size: 1rem;
  margin-top: 1rem;
  margin-bottom: 0.5rem;
}

.about-list {
  color: var(--text-secondary);
  padding-left: 1.5rem;
  margin-bottom: 1rem;
  line-height: 1.8;
}

.about-list li {
  margin-bottom: 0.25rem;
}

/* Skills */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
}

.skill-card {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1.25rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}

.skill-card:hover {
  border-color: var(--accent-muted);
  transform: translateY(-2px);
}

.skill-name {
  font-weight: 600;
  font-size: 1rem;
}

.skill-level {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.tools-heading {
  font-size: 1.15rem;
  font-weight: 600;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.tools-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  align-items: center;
}

.tool-icon {
  display: inline-flex;
  padding: 0.75rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}

.tool-icon:hover {
  border-color: var(--accent-muted);
  transform: translateY(-2px);
}

.tool-icon img {
  display: block;
}

/* Projects */
.projects-grid {
  display: grid;
  gap: 0;
}

.projects-loading {
  color: var(--text-secondary);
  text-align: center;
  padding: 2rem;
}

.projects-loading.projects-error {
  color: var(--accent);
}

.projects-actions {
  text-align: center;
  margin-top: 2rem;
}

.project-meta {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

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

.project-stars {
  color: var(--text-secondary);
}

.project-card {
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.project-card:last-child {
  margin-bottom: 0;
}

.project-card:hover {
  border-color: var(--accent-muted);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.project-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.project-desc {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.55;
  margin-bottom: 0.75rem;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent);
  font-weight: 500;
  font-size: 0.85rem;
  text-decoration: none;
  transition: var(--transition);
}

.project-link:hover {
  gap: 0.75rem;
}

/* Experience Timeline */
.timeline {
  position: relative;
}

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

.timeline-item {
  position: relative;
  padding-left: 2.5rem;
  padding-bottom: 2.5rem;
}

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

.timeline-marker {
  position: absolute;
  left: -6px;
  top: 0.35rem;
  width: 14px;
  height: 14px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 4px var(--bg-primary);
}

[data-theme="light"] .timeline-marker {
  box-shadow: 0 0 0 4px var(--bg-primary);
}

.timeline-content {
  padding: 1.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.timeline-role {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.timeline-company {
  font-size: 0.9rem;
  color: var(--accent);
  margin-bottom: 1rem;
}

.timeline-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* Contact */
.contact-section .section-subtitle {
  margin-bottom: 2rem;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  padding: 1rem 1.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

.contact-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* Footer */
.footer {
  padding: 3rem 2rem;
  border-top: 1px solid var(--border);
  text-align: center;
}

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

/* Animations */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Scroll-triggered fade-in */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Mobile */
@media (max-width: 768px) {
  .nav {
    flex-wrap: wrap;
  }

  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 0;
    padding: 1rem 0 0;
    margin-top: 0.5rem;
    border-top: 1px solid var(--border);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
  }

  .nav-links li:last-child {
    border-bottom: none;
  }

  .nav-links a {
    display: block;
    font-size: 1rem;
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    padding: 6rem 1.5rem 4rem;
  }

  .hero-name {
    font-size: clamp(2.5rem, 12vw, 4rem);
  }

  .section {
    padding: 2.5rem 1.5rem;
  }

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

  .contact-links {
    flex-direction: column;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}