:root {
  --orange: #FFA500;
  --orange-light: #FFB733;
  --orange-dark: #E69500;
  --bg-primary: #FFFFFF;
  --bg-secondary: #f5f5f5;
  --text-primary: #1a1a1a;
  --text-secondary: #666666;
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --transition: 0.3s ease;
}

[data-theme="dark"] {
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  transition: background var(--transition), color var(--transition);
}

a {
  color: inherit;
  text-decoration: none;
}


.navbar {
  padding: 1rem 0;
  background: var(--bg-primary);
  transition: background var(--transition);
}

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

.nav-brand {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
  transition: color var(--transition);
}

.nav-brand:hover {
  color: var(--orange);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-link {
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: color var(--transition);
}

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

.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--text-secondary);
  transition: color var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle:hover {
  color: var(--orange);
}

.icon-sun {
  display: block;
}

.icon-moon {
  display: none;
}

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

[data-theme="dark"] .icon-moon {
  display: block;
}



.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 3rem 0;
}

.section-title {
  color: var(--orange);
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
  letter-spacing: 0.02em;
}



.hero {
  padding-top: 4rem;
  padding-bottom: 2rem;
}

.hero-name {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.hero-role {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
}

.hero-tagline {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-top: 2rem;
}



.contributions-section {
  margin: 2rem 0;
}

.contributions-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.contributions-calendar-container {
  overflow-x: auto;
  padding-bottom: 0.5rem;
}

.contributions-calendar {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.months-row {
  display: flex;
  gap: 2px;
  margin-bottom: 4px;
  height: 15px;
  position: relative;
}

.month-label {
  font-size: 0.7rem;
  color: var(--text-secondary);
  position: absolute;
}

.days-grid {
  display: flex;
  gap: 2px;
}

.calendar-week {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.calendar-day {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: var(--bg-secondary);
  transition: background var(--transition), transform 0.2s ease;
  position: relative;
  z-index: 1;
}

.calendar-day:hover {
  transform: scale(1.3);
  z-index: 100;
}

.calendar-day[data-level="1"] {
  background: rgba(255, 165, 0, 0.3);
}

.calendar-day[data-level="2"] {
  background: rgba(255, 165, 0, 0.5);
}

.calendar-day[data-level="3"] {
  background: rgba(255, 165, 0, 0.7);
}

.calendar-day[data-level="4"] {
  background: var(--orange);
}

/* Dark mode calendar adjustments */
[data-theme="dark"] .calendar-day {
  background: #21262d;
}

[data-theme="dark"] .calendar-day[data-level="1"] {
  background: rgba(255, 165, 0, 0.25);
}

[data-theme="dark"] .calendar-day[data-level="2"] {
  background: rgba(255, 165, 0, 0.45);
}

[data-theme="dark"] .calendar-day[data-level="3"] {
  background: rgba(255, 165, 0, 0.65);
}

[data-theme="dark"] .calendar-day[data-level="4"] {
  background: var(--orange);
}

.calendar-tooltip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--text-primary);
  color: var(--bg-primary);
  padding: 0.2rem 0.4rem;
  border-radius: 3px;
  font-size: 0.65rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease;
  z-index: 1000;
}

.calendar-day:hover .calendar-tooltip {
  opacity: 1;
}

/* Fix left edge clipping for first few weeks */
.days-grid .calendar-week:nth-child(-n+16) .calendar-day .calendar-tooltip {
  left: 0;
  transform: translateX(0);
}

/* Fix right edge clipping for last few weeks */
.days-grid .calendar-week:nth-last-child(-n+16) .calendar-day .calendar-tooltip {
  left: auto;
  right: 0;
  transform: translateX(0);
}


/* Flip tooltip for the first 2 rows to avoid clipping at the top */
.calendar-day:nth-child(-n+2) .calendar-tooltip {
  bottom: auto;
  top: calc(100% + 5px);
}

.contributions-count {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 0.5rem;
}

#total-contributions {
  font-weight: 600;
}


.about-content p {
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.about-content p:last-child {
  margin-bottom: 0;
}

/* ========================================
   Skills Section
======================================== */
.skills-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill-tag {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color var(--transition);
}

.skill-tag:hover {
  color: var(--orange);
}

.skill-tag:not(:last-child)::after {
  content: ',';
  margin-right: 0.25rem;
}

/* ========================================
   Projects Section
======================================== */
.projects-grid {
  display: grid;
  gap: 2rem;
}

.project-card {
  padding: 1.5rem;
  border-radius: 8px;
  transition: all var(--transition);
  cursor: pointer;
}

.project-card:hover {
  background: var(--bg-secondary);
}

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

.project-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  transition: color var(--transition);
}

.project-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.project-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.project-stack span {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ========================================
   Links Section
======================================== */
.links-list {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.link-item {
  color: var(--text-primary);
  font-size: 1rem;
  transition: color var(--transition);
  position: relative;
}

.link-item:hover {
  color: var(--orange);
}

/* ========================================
   Footer
======================================== */
.footer {
  padding: 3rem 0;
  margin-top: 2rem;
}

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

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

.footer .highlight {
  color: var(--orange);
}

.footer-link {
  color: var(--text-secondary);
  font-size: 0.85rem;
  transition: color var(--transition);
}

.footer-link:hover {
  color: var(--orange);
}

/* ========================================
   Responsive Design
======================================== */
@media (max-width: 768px) {
  .container {
    padding: 0 1.5rem;
  }

  .hero {
    padding-top: 5rem;
  }

  .hero-name {
    font-size: 2rem;
  }

  .section {
    padding: 2.5rem 0;
  }

  .contributions-calendar {
    max-width: 100%;
  }

  .footer-content {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-name {
    font-size: 1.75rem;
  }

  .links-list {
    flex-direction: column;
    gap: 1rem;
  }

  .nav-links {
    gap: 1rem;
  }
}

/* ========================================
   Animations
======================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.section {
  animation: fadeInUp 0.6s ease forwards;
}

.section:nth-child(1) {
  animation-delay: 0s;
}

.section:nth-child(2) {
  animation-delay: 0.1s;
}

.section:nth-child(3) {
  animation-delay: 0.15s;
}

.section:nth-child(4) {
  animation-delay: 0.2s;
}

.section:nth-child(5) {
  animation-delay: 0.25s;
}