:root {
  /* Dark theme (default) - matching the reference */
  --color-bg: #10141a;
  --color-surface: #1c2026;
  --color-surface-low: #181c22;
  --color-surface-high: #262a31;
  --color-surface-highest: #31353c;
  --color-surface-dim: #10141a;
  
  --color-primary: #a2c9ff;
  --color-primary-container: #1879cf;
  --color-on-primary: #00315c;
  --color-on-primary-container: #ffffff;
  --color-on-primary-fixed: #001c38;
  --color-on-primary-fixed-dim: #004882;
  
  --color-secondary: #adc9ee;
  --color-secondary-container: #2c4968;
  --color-on-secondary: #133250;
  --color-on-secondary-container: #9bb7dc;
  --color-secondary-fixed: #d1e4ff;
  --color-secondary-fixed-dim: #adc9ee;
  --color-on-secondary-fixed: #001d36;
  --color-on-secondary-fixed-variant: #2c4968;
  
  --color-tertiary: #ffb784;
  --color-tertiary-container: #b95e01;
  --color-on-tertiary: #4f2500;
  --color-on-tertiary-container: #ffffff;
  --color-tertiary-fixed: #ffdcc6;
  --color-tertiary-fixed-dim: #ffb784;
  --color-on-tertiary-fixed: #301400;
  --color-on-tertiary-fixed-variant: #713700;
  
  --color-error: #ffb4ab;
  --color-error-container: #93000a;
  --color-on-error: #690005;
  --color-on-error-container: #ffdad6;
  
  --color-outline: #8a919d;
  --color-outline-variant: #404751;
  
  --color-on-surface: #dfe2eb;
  --color-on-surface-variant: #c0c7d3;
  --color-on-background: #dfe2eb;
  
  --color-inverse-surface: #dfe2eb;
  --color-inverse-primary: #0060aa;
  --color-inverse-on-surface: #2d3137;
  
  --color-surface-tint: #a2c9ff;
  --color-surface-bright: #353940;
  --color-surface-container: #1c2026;
  --color-surface-container-lowest: #0a0e14;
  --color-surface-container-low: #181c22;
  --color-surface-container-high: #262a31;
  --color-surface-container-highest: #31353c;
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-label: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-material: 'Material Symbols Outlined', sans-serif;
  
  --radius-sm: 0.125rem;
  --radius-md: 0.25rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  
  --transition: 0.2s ease;
  --transition-slow: 0.4s ease;
}

/* Light theme */
body.light-mode {
  --color-bg: #ffffff;
  --color-surface: #f5f5f5;
  --color-surface-low: #f0f0f0;
  --color-surface-high: #e8e8e8;
  --color-surface-highest: #dedede;
  
  --color-primary: #2563eb;
  --color-primary-container: #d3e4ff;
  --color-on-primary: #ffffff;
  --color-on-primary-container: #001c38;
  --color-on-primary-fixed: #001c38;
  --color-on-primary-fixed-dim: #004882;
  
  --color-secondary: #4a6fa5;
  --color-secondary-container: #d1e4ff;
  --color-on-secondary: #ffffff;
  --color-on-secondary-container: #133250;
  --color-secondary-fixed: #d1e4ff;
  --color-secondary-fixed-dim: #adc9ee;
  --color-on-secondary-fixed: #001d36;
  --color-on-secondary-fixed-variant: #2c4968;
  
  --color-tertiary: #b95e01;
  --color-tertiary-container: #ffdcc6;
  --color-on-tertiary: #ffffff;
  --color-on-tertiary-container: #301400;
  
  --color-error: #ba1a1a;
  --color-error-container: #ffdad6;
  --color-on-error: #ffffff;
  --color-on-error-container: #410002;
  
  --color-outline: #73777f;
  --color-outline-variant: #c3c6cf;
  
  --color-on-surface: #1a1c1e;
  --color-on-surface-variant: #44474e;
  --color-on-background: #1a1c1e;
  
  --color-inverse-surface: #f1f0f4;
  --color-inverse-primary: #a2c9ff;
  --color-inverse-on-surface: #2d3137;
  
  --color-surface-tint: #2563eb;
  --color-surface-bright: #f5f5f5;
  --color-surface-container: #f5f5f5;
  --color-surface-container-lowest: #ffffff;
  --color-surface-container-low: #fafafa;
  --color-surface-container-high: #f0f0f0;
  --color-surface-container-highest: #e8e8e8;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-on-surface);
  line-height: 1.6;
  transition: background-color var(--transition-slow), color var(--transition-slow);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background-color: var(--color-primary-container);
  color: var(--color-on-primary-container);
}

/* Material Symbols */
.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  font-family: var(--font-material);
}

/* Theme Toggle */
.theme-toggle {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 1000;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-outline-variant);
  border-radius: var(--radius-md);
  background: var(--color-surface-container);
  color: var(--color-on-surface);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}

.theme-toggle .material-symbols-outlined {
  font-size: 1.5rem;
}

.theme-toggle:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-on-primary);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Back to Home */
.back-home {
  position: fixed;
  top: 1.5rem;
  left: 1.5rem;
  z-index: 1000;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-on-surface-variant);
  text-decoration: none;
  border: 1px solid var(--color-outline-variant);
  border-radius: var(--radius-md);
  background: var(--color-surface-container);
  transition: all var(--transition);
}

.back-home:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.back-home .material-symbols-outlined {
  font-size: 1.125rem;
}

/* Resume Container */
.resume-container {
  max-width: 720px;
  margin: 0 auto;
  padding: 6rem 1.5rem 4rem;
}

/* Header */
.resume-header {
  text-align: center;
  margin-bottom: 3.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--color-outline-variant);
}

.header-top {
  margin-bottom: 1rem;
}

.section-label {
  font-family: var(--font-label);
  font-size: 0.875rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.resume-header h1 {
  font-size: clamp(2rem, 6vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 0.75rem;
}

.tagline {
  font-size: 1.125rem;
  color: var(--color-on-surface-variant);
  margin-bottom: 1rem;
}

.tagline .role {
  color: var(--color-on-surface);
}

.location {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  color: var(--color-on-surface-variant);
  font-size: 0.9375rem;
  margin-bottom: 1rem;
}

.location .material-symbols-outlined {
  font-size: 1rem;
}

.header-links {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
}

.header-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  color: var(--color-on-surface-variant);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color var(--transition);
}

.header-links a:hover {
  color: var(--color-primary);
}

.header-links a .material-symbols-outlined {
  font-size: 1rem;
}

/* Sections */
section {
  margin-bottom: 2.5rem;
}

section h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--color-outline-variant);
  letter-spacing: -0.02em;
}

section > p {
  color: var(--color-on-surface-variant);
  font-size: 0.9375rem;
  line-height: 1.7;
}

/* Experience */
.experience-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.experience-item {
  padding: 1.5rem;
  background: var(--color-surface-container-low);
  border-radius: var(--radius-lg);
  border-left: 3px solid transparent;
  transition: all var(--transition);
}

.experience-item:hover {
  border-left-color: var(--color-primary);
}

.experience-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.experience-header h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-on-surface);
}

.experience-role {
  font-size: 0.9375rem;
  color: var(--color-primary);
}

.experience-date {
  font-size: 0.875rem;
  font-family: var(--font-label);
  color: var(--color-outline);
}

.experience-tasks {
  margin-left: 1.25rem;
  color: var(--color-on-surface-variant);
  font-size: 0.9375rem;
}

.experience-tasks li {
  margin-bottom: 0.25rem;
}

/* Projects */
.projects-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.project-item {
  padding: 1.25rem;
  background: var(--color-surface-container-low);
  border-radius: var(--radius-lg);
}

.project-item h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.project-item p {
  font-size: 0.9375rem;
  color: var(--color-on-surface-variant);
}

/* Education */
.education-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.education-item {
  padding: 1rem 1.25rem;
  background: var(--color-surface-container-low);
  border-radius: var(--radius-md);
}

.education-item h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.education-school {
  font-size: 0.9375rem;
  color: var(--color-on-surface-variant);
  margin-bottom: 0.25rem;
}

.education-date {
  font-size: 0.8125rem;
  font-family: var(--font-label);
  color: var(--color-outline);
}

/* Skills */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.skill-category {
  padding: 1.25rem;
  background: var(--color-surface-container-low);
  border-radius: var(--radius-lg);
}

.skill-category h3 {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-on-surface-variant);
  margin-bottom: 0.75rem;
}

.skill-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.skill-tags span {
  padding: 0.375rem 0.75rem;
  font-size: 0.8125rem;
  color: var(--color-on-surface-variant);
  background: var(--color-surface-container-high);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.skill-tags span:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Languages */
.languages-list {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.language-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: var(--color-surface-container-low);
  border-radius: var(--radius-md);
}

.language-name {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-on-surface);
}

.language-separator {
  color: var(--color-outline);
}

.language-level {
  font-size: 0.875rem;
  color: var(--color-on-surface-variant);
}

/* Tech Stack Badges */
.tech-badges {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.tech-badges span {
  padding: 0.375rem 0.75rem;
  font-size: 0.8125rem;
  font-family: var(--font-label);
  color: var(--color-on-surface-variant);
  background: var(--color-surface-container-low);
  border: 1px solid var(--color-outline-variant);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.tech-badges span:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Footer */
.resume-footer {
  text-align: center;
  padding: 2rem 0;
  border-top: 1px solid var(--color-outline-variant);
  margin-top: 2rem;
}

.resume-footer p {
  color: var(--color-on-surface-variant);
  font-size: 0.8125rem;
}

.resume-footer a {
  color: var(--color-primary);
  text-decoration: none;
}

.resume-footer a:hover {
  text-decoration: underline;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.resume-container > * {
  animation: fadeInUp 0.5s ease backwards;
}

.resume-header { animation-delay: 0.1s; }
#about { animation-delay: 0.15s; }
#experience { animation-delay: 0.2s; }
#projects { animation-delay: 0.25s; }
#education { animation-delay: 0.3s; }
#skills { animation-delay: 0.35s; }
#languages { animation-delay: 0.4s; }
#tech-stack { animation-delay: 0.45s; }

/* Responsive */
@media (max-width: 600px) {
  .theme-toggle {
    top: 1rem;
    right: 1rem;
    width: 38px;
    height: 38px;
    font-size: 1rem;
  }

  .back-home {
    top: 1rem;
    left: 1rem;
    padding: 0.5rem 0.75rem;
    font-size: 0.8125rem;
  }

  .resume-container {
    padding: 5rem 1rem 3rem;
  }

  .resume-header {
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
  }

  .header-links {
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
  }

  .experience-header {
    flex-direction: column;
    gap: 0.25rem;
  }

  .experience-header h3 {
    font-size: 1rem;
  }
}