:root {
    /* Base colors */
    --bg-color: #ffffff;
    --text-color: #161616;
    --accent-color: #0366d6;
    --secondary-accent: #2188ff;
    --hover-accent: #0550ae;
    --secondary-bg: #f6f8fa;
    --border-color: #e1e4e8;
    --card-bg: #ffffff;
    --success-color: #28a745;
    --tag-bg: #e1e4e8;
    --tag-text: #24292e;
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    
    --transition-speed: 0.3s;
}

.dark-mode {
    --bg-color: #0d1117;
    --text-color: #c9d1d9;
    --accent-color: #58a6ff;
    --secondary-accent: #79c0ff;
    --hover-accent: #388bfd;
    --secondary-bg: #161b22;
    --border-color: #30363d;
    --card-bg: #161b22;
    --success-color: #3fb950;
    --tag-bg: #21262d;
    --tag-text: #c9d1d9;
    
    --shadow-sm: 0 1px 2px rgba(255, 255, 255, 0.05);
    --shadow-md: 0 4px 8px rgba(255, 255, 255, 0.06);
    --shadow-lg: 0 8px 24px rgba(255, 255, 255, 0.08);
}

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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    line-height: 1.25;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: -0.025em;
}

h2 {
    font-size: 1.75rem;
    font-weight: 600;
    position: relative;
    display: inline-block;
    margin-bottom: 2rem;
}

h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

p {
    margin-bottom: 1rem;
}

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

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

/* Header */
header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem 2rem;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
    box-shadow: var(--shadow-sm);
}

.logo {
    justify-self: start;
}

.logo .name {
    font-size: 1.4rem;
    font-weight: 600;
    letter-spacing: -0.015em;
}

.timestamp {
    font-family: 'SF Mono', SFMono-Regular, Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 0.75rem;
    color: var(--text-color);
    opacity: 0.6;
    margin-top: 0.25rem;
}

.tagline {
    font-size: 0.85rem;
    color: var(--accent-color);
    margin-top: 0.25rem;
    font-style: italic;
}

/* Navigation */
nav {
    display: flex;
    justify-content: center;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

nav a {
    color: var(--text-color);
    font-weight: 500;
    position: relative;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: width var(--transition-speed);
}

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

nav a:hover::after {
    width: 100%;
}

/* About */
#about {
    padding: 6rem 0;
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.about-content {
    text-align: left;
}

/* Animation */
.typing-text {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    margin-bottom: 1.5rem;
    min-height: 3.5rem;
    display: inline-block;
    position: relative;
}

.typing-text::after {
    content: '|';
    position: absolute;
    right: -8px;
    animation: blink 0.7s infinite;
}

.typing-done::after {
    content: none;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

@media (max-width: 768px) {
  .typing-text {
    font-size: 1.9rem;
    white-space: nowrap;
    overflow: hidden;
    width: 100%;
  }
  
  .about-content {
    max-width: 100%;
    padding: 0 1rem;
  }
}

/* Intro paragraph */
.intro {
    font-size: 1.25rem;
    max-width: 600px;
    margin-bottom: 2.5rem;
    opacity: 0.85;
}

/* Theme toggle button */
.theme-toggle {
    background-color: transparent;
    border: 1px solid var(--border-color);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: auto;
    transition: background-color var(--transition-speed), transform var(--transition-speed);
}

.theme-toggle:hover {
    background-color: var(--secondary-bg);
    transform: scale(1.05);
}

#theme-icon {
    font-size: 1.2rem;
    line-height: 1;
}

/* Hero section */
.hero {
    height: 50vh;
    min-height: 700px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 0;
    text-align: center;
}

.user-badge {
    display: inline-flex;
    align-items: center;
    background-color: var(--card-bg);
    padding: 0.75rem 1.25rem;
    border-radius: 30px;
    box-shadow: var(--shadow-md);
    margin-bottom: 2.5rem;
    border: 1px solid var(--border-color);
}

.user-icon {
    font-size: 1.75rem;
    color: var(--accent-color);
    margin-right: 1rem;
}

.github-name {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.status {
    display: flex;
    align-items: center;
    font-size: 0.85rem;
    opacity: 0.8;
}

.status-dot {
    width: 8px;
    height: 8px;
    background-color: var(--success-color);
    border-radius: 50%;
    margin-right: 0.5rem;
}

.intro {
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto 2.5rem;
    color: var(--text-color);
    opacity: 0.85;
}

/* Glitch text effect */
.glitch-text {
    position: relative;
    display: inline-block;
    margin-bottom: 1.5rem;
}

.glitch-text:hover {
    animation: glitch 500ms infinite;
}

@keyframes glitch {
    0% {
        transform: translate(0);
    }
    20% {
        transform: translate(-2px, 2px);
    }
    40% {
        transform: translate(-2px, -2px);
    }
    60% {
        transform: translate(2px, 2px);
    }
    80% {
        transform: translate(2px, -2px);
    }
    100% {
        transform: translate(0);
    }
}

/* Buttons */
.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    text-align: center;
    transition: all var(--transition-speed);
    cursor: pointer;
    font-size: 0.95rem;
}

.primary-btn {
    background-color: var(--accent-color);
    color: #fff;
    border: 1px solid var(--accent-color);
}

.primary-btn:hover {
    background-color: var(--hover-accent);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.secondary-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--accent-color);
    color: #fff;
}

.download-btn:hover {
    background-color: var(--hover-accent);
    color: #fff;
}

/* Skills section */
#skills {
    padding: 6rem 0;
    background-color: var(--secondary-bg);
}

.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.skill-category {
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 1.75rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.skill-category:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1rem;
}

.skill-tag {
    background-color: var(--tag-bg);
    color: var(--tag-text);
    padding: 0.35rem 0.75rem;
    border-radius: 15px;
    font-size: 0.9rem;
    transition: background-color var(--transition-speed), transform var(--transition-speed);
}

.skill-tags .skill-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.skill-tags .skill-tag i {
    font-size: 0.9rem;
}

/* Projects section */
#projects {
    padding: 6rem 0;
}

.projects {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.project-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    padding: 1.75rem;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.project-title {
    font-size: 1.25rem;
    font-weight: 600;
}

.project-icons {
    display: flex;
    gap: 0.5rem;
    color: var(--accent-color);
}

.project-card p {
    color: var(--text-color);
    opacity: 0.85;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.project-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: auto;
}

.project-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--transition-speed);
}

.project-link:hover {
    color: var(--secondary-accent);
}

/* CV Section */
#cv {
    padding: 6rem 0;
    background-color: var(--secondary-bg);
}

.cv-content {
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 2rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.cv-section {
    margin-bottom: 2.5rem;
}

.cv-item {
    margin-bottom: 1.5rem;
    border-left: 2px solid var(--accent-color);
    padding-left: 1.5rem;
    position: relative;
}

.cv-item:before {
    content: '';
    position: absolute;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--accent-color);
    left: -7px;
    top: 0;
}

.cv-item-header {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-bottom: 0.5rem;
}

.cv-title {
    font-weight: 600;
    font-size: 1.1rem;
}

.cv-date {
    color: var(--accent-color);
    font-weight: 500;
    font-size: 0.9rem;
}

.cv-location {
    font-weight: 500;
    font-style: italic;
    margin-bottom: 0.5rem;
    opacity: 0.8;
}

.cv-description {
    font-size: 0.95rem;
    opacity: 0.85;
}

.cv-download {
    margin-top: 2.5rem;
    text-align: center;
}

.cv-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.cv-skills .skill-tag {
    background-color: var(--tag-bg);
    color: var(--tag-text);
    padding: 0.25rem 0.6rem;
    border-radius: 12px;
    font-size: 0.8rem;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.cv-skills .skill-tag i {
    font-size: 0.85rem;
}

.cv-skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.cv-skills-category h4 {
    font-size: 1.05rem;
    margin-bottom: 0.75rem;
    color: var(--accent-color);
}

.cv-skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}


/* Footer/Contact section */
footer {
    background-color: var(--secondary-bg);
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-info h3 {
    margin-bottom: 1.25rem;
}

.contact-email {
    display: flex;
    align-items: center;
    margin-top: 1.5rem;
}

.contact-email i {
    font-size: 1.2rem;
    color: var(--accent-color);
    margin-right: 0.75rem;
}

.social-links {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    font-size: 1.1rem;
    transition: all var(--transition-speed);
}

.social-link:hover {
    background-color: var(--accent-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.footer-bottom {
    text-align: center;
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
    font-size: 0.95rem;
    color: var(--text-color);
    opacity: 0.8;
}

.user-tag {
    font-family: 'SF Mono', SFMono-Regular, Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 0.85rem;
    margin-top: 0.5rem;
    color: var(--accent-color);
}

/* Mobile navigation */
.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1000;
}

.hamburger {
  width: 24px;
  height: 20px;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hamburger span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--text-color);
  transition: all 0.3s ease;
}

@media (max-width: 768px) {
  header {
    grid-template-columns: 1fr auto;
  }
  
  .mobile-nav-toggle {
    display: block;
    justify-self: end;
  }
  
  .theme-toggle {
    position: absolute;
    top: 330px;
    right: 135px;
    z-index: 999;
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease;
    transition-delay: 0.3s; 
  }
  
  nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 250px;
    height: 100vh;
    background-color: var(--bg-color);
    padding: 80px 20px 20px;
    box-shadow: -2px 0 5px rgba(0,0,0,0.1);
    transition: right 0.3s ease;
    z-index: 999;
  }
  
  nav.active {
    right: 0;
  }
  
  nav ul {
    flex-direction: column;
    gap: 1.5rem;
    padding-right: 50px;
  }
  
  nav.active + .theme-toggle {
    display: block;
    animation: fadeIn 0.3s ease 0.25s forwards;
  }

  @keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
  }

  nav:not(.active) + .theme-toggle {
    transition-delay: 0s;
    opacity: 0;
  }

  .mobile-nav-toggle.active .hamburger span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
  }
  
  .mobile-nav-toggle.active .hamburger span:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-nav-toggle.active .hamburger span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
  }
}

/* Footer responsiveness */
@media (max-width: 768px) {
  .footer-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
  }
  
  .footer-info {
    width: 100%;
  }
  
  .social-links {
    justify-content: flex-start;
    flex-wrap: wrap;
  }
}