/* CSS Variables for theming */
:root {
  --color-primary: #000000;
  --color-secondary: #333333;
  --color-accent: #666666;
  --color-bg: #ffffff;
  --color-surface: #f8f9fa;
  --color-border: #e9ecef;
  --color-text: #212529;
  --color-text-muted: #6c757d;
  --color-shadow: rgba(0, 0, 0, 0.1);
  --color-shadow-hover: rgba(0, 0, 0, 0.15);
  
  --font-primary: 'Futura Std', 'Inter', system-ui, sans-serif;
  --font-secondary: 'Lora', serif;
  --font-mono: 'SF Mono', 'Monaco', 'Inconsolata', monospace;
  
  --border-radius: 12px;
  --border-radius-lg: 16px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
}

[data-theme="dark"] {
  --color-primary: #ffffff;
  --color-secondary: #e9ecef;
  --color-accent: #adb5bd;
  --color-bg: #0a0a0a;
  --color-surface: #1a1a1a;
  --color-border: #2d2d2d;
  --color-text: #f8f9fa;
  --color-text-muted: #adb5bd;
  --color-shadow: rgba(255, 255, 255, 0.1);
  --color-shadow-hover: rgba(255, 255, 255, 0.15);
}

/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
  margin-bottom: var(--spacing-md);
  font-family: var(--font-secondary);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
}

[data-theme="dark"] .header {
  background: rgba(10, 10, 10, 0.95);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) 0;
  gap: var(--spacing-lg);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.brand-icon {
  width: 48px;
  height: 48px;
  background: var(--color-surface);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-bg);
  font-size: 1.5rem;
  transition: var(--transition);
  border: 1px solid var(--color-border);
}

.brand-icon:hover {
  transform: rotate(5deg) scale(1.05);
}

.brand-logo {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: var(--transition);
}

/* Logo inversion for themes */
[data-theme="light"] .brand-logo {
  filter: invert(1);
}

[data-theme="dark"] .brand-logo {
  filter: invert(0);
}

.brand-name {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0;
}

.brand-tagline {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: 0;
}

/* Search */
.search-container {
  flex: 1;
  max-width: 400px;
  position: relative;
}

.search-box {
  position: relative;
  width: 100%;
}

.search-box input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md) var(--spacing-sm) 2.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.875rem;
  transition: var(--transition);
}

.search-box input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .search-box input:focus {
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.1);
}

.search-icon {
  position: absolute;
  left: var(--spacing-sm);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  font-size: 1rem;
}

.search-results {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  max-height: 400px;
  overflow-y: auto;
  z-index: 1001;
  display: none;
  margin-top: var(--spacing-xs);
  box-shadow: 0 4px 20px var(--color-shadow);
}

.search-results.show {
  display: block;
  animation: slideDown 0.2s ease-out;
}

.search-category {
  padding: var(--spacing-sm) var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text-muted);
}

.search-item {
  padding: var(--spacing-sm) var(--spacing-md);
  cursor: pointer;
  transition: var(--transition-fast);
  border-bottom: 1px solid var(--color-border);
}

.search-item:hover {
  background: var(--color-border);
}

.search-item:last-child {
  border-bottom: none;
}

.search-item-title {
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
}

.search-item-meta {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* Theme Toggle */
.theme-toggle {
  width: 40px;
  height: 40px;
  border: none;
  background: var(--color-surface);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  color: var(--color-text);
  font-size: 1.25rem;
}

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

/* Navigation Tabs */
.nav-tabs {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.nav-tabs::-webkit-scrollbar {
  display: none;
}

.tab-list {
  display: flex;
  list-style: none;
  gap: var(--spacing-xs);
  padding: var(--spacing-md) 0;
  min-width: max-content;
  width: max-content;
}

.tab-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  flex-shrink: 0;
}

.tab-btn:hover {
  background: var(--color-border);
  color: var(--color-text);
  transform: translateY(-1px);
}

.tab-btn.active {
  background: var(--color-primary);
  color: var(--color-bg);
}

.tab-btn .iconify {
  font-size: 1rem;
}

/* Articles Section */
.articles-filters {
  display: flex;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  padding: var(--spacing-lg);
  background: var(--color-surface);
  border-radius: var(--border-radius);
  flex-wrap: wrap;
  align-items: center;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.filter-group label {
  font-weight: 500;
  color: var(--color-text);
  font-size: 0.875rem;
}

.filter-group select {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 0.875rem;
  min-width: 120px;
}

.clear-filters-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-primary);
  color: var(--color-bg);
  border: none;
  border-radius: var(--border-radius);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.clear-filters-btn:hover {
  background: var(--color-secondary);
  transform: translateY(-1px);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
}

.article-card {
  background: var(--color-surface);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
  border: 1px solid var(--color-border);
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px var(--color-shadow-hover);
  border-color: var(--color-primary);
}

.article-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.article-date {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.article-title {
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  font-size: 1.25rem;
  line-height: 1.3;
}

.article-description {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  line-height: 1.5;
  margin-bottom: var(--spacing-md);
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.article-tag {
  background: var(--color-border);
  color: var(--color-text);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  font-size: 0.75rem;
  font-weight: 500;
}

.article-footer {
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.read-time {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

/* Memories Section */
.memories-masonry {
  columns: 3;
  column-gap: var(--spacing-lg);
  column-fill: balance;
}

.memory-item {
  break-inside: avoid;
  margin-bottom: var(--spacing-lg);
  background: var(--color-surface);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
  border: 1px solid var(--color-border);
}

.memory-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px var(--color-shadow-hover);
}

.memory-media {
  position: relative;
  width: 100%;
}

.memory-image {
  width: 100%;
  height: auto;
  display: block;
}

.memory-video-thumbnail {
  width: 100%;
  height: auto;
  display: block;
}

.memory-play-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

.memory-item:hover .memory-play-overlay {
  opacity: 1;
}

.memory-play-button {
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--color-primary);
}

.memory-info {
  padding: var(--spacing-md);
}

.memory-date {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-xs);
}

.memory-caption {
  font-size: 0.875rem;
  color: var(--color-text);
  line-height: 1.4;
}

/* Post Layout Styles */
.post-main {
  min-height: calc(100vh - 200px);
  padding: var(--spacing-xl) 0;
}

.post-article {
  max-width: 800px;
  margin: 0 auto;
}

.post-header {
  margin-bottom: var(--spacing-2xl);
  text-align: center;
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--color-border);
}

.post-meta {
  margin-bottom: var(--spacing-lg);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.post-meta time {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.post-tags {
  display: flex;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
}

.post-tags .tag {
  background: var(--color-primary);
  color: var(--color-bg);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  font-size: 0.75rem;
  font-weight: 500;
}

.post-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
}

.post-description {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin: 0;
}

.post-content {
  font-size: 1.1rem;
  line-height: 1.7;
  margin-bottom: var(--spacing-2xl);
}

.post-content h1,
.post-content h2,
.post-content h3,
.post-content h4,
.post-content h5,
.post-content h6 {
  margin-top: var(--spacing-2xl);
  margin-bottom: var(--spacing-lg);
}

.post-content h1 { font-size: 2rem; }
.post-content h2 { font-size: 1.75rem; }
.post-content h3 { font-size: 1.5rem; }
.post-content h4 { font-size: 1.25rem; }

.post-content p {
  margin-bottom: var(--spacing-lg);
}

.post-content ul,
.post-content ol {
  margin-bottom: var(--spacing-lg);
  padding-left: var(--spacing-xl);
}

.post-content li {
  margin-bottom: var(--spacing-sm);
}

.post-content blockquote {
  border-left: 4px solid var(--color-primary);
  padding-left: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
  font-style: italic;
  color: var(--color-text-muted);
}

.post-content code {
  background: var(--color-surface);
  padding: 0.2em 0.4em;
  border-radius: 3px;
  font-size: 0.9em;
  font-family: var(--font-mono);
}

.post-content pre {
  background: var(--color-surface);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  overflow-x: auto;
  margin: var(--spacing-xl) 0;
  position: relative;
}

.post-content pre code {
  background: none;
  padding: 0;
}

/* Code block styling with Prism.js */
.post-content pre[class*="language-"] {
  position: relative;
}

.post-content .line-numbers .line-numbers-rows {
  border-right: 1px solid var(--color-border);
  padding-right: var(--spacing-sm);
  margin-right: var(--spacing-sm);
}

/* Math rendering */
.MathJax {
  font-size: 1.1em !important;
}

.post-footer {
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-border);
}

.post-author {
  margin-bottom: var(--spacing-xl);
}

.author-info h4 {
  margin-bottom: var(--spacing-sm);
}

.author-info p {
  color: var(--color-text-muted);
  margin: 0;
}

.post-tags-footer h4 {
  margin-bottom: var(--spacing-md);
}

.tags-list {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.tags-list .tag {
  background: var(--color-surface);
  color: var(--color-text);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius);
  font-size: 0.875rem;
  border: 1px solid var(--color-border);
}

.post-nav {
  display: flex;
  align-items: center;
}

.back-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: var(--transition);
}

.back-link:hover {
  color: var(--color-text);
  transform: translateX(-2px);
}

/* Main Content */
.main-content {
  min-height: calc(100vh - 200px);
  padding: var(--spacing-xl) 0;
}

.tab-content {
  display: none;
  animation: fadeIn 0.3s ease-out;
}

.tab-content.active {
  display: block;
}

/* Hero Section */
.hero-section {
  margin-bottom: var(--spacing-2xl);
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-xl);
  line-height: 1.5;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.stat-item {
  text-align: center;
  padding: var(--spacing-lg);
  background: var(--color-surface);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.stat-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px var(--color-shadow-hover);
}

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.profile-card {
  background: var(--color-surface);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  text-align: center;
  box-shadow: 0 8px 32px var(--color-shadow);
  transition: var(--transition);
  max-width: 300px;
}

.profile-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px var(--color-shadow-hover);
}

.profile-avatar {
  width: 120px;
  height: 120px;
  background: var(--color-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-lg);
  overflow: hidden;
  border: 4px solid var(--color-border);
  transition: var(--transition);
}

.profile-avatar:hover {
  transform: scale(1.05);
  border-color: var(--color-primary);
}

.profile-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Section Header */
.section-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.section-header h2 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
}

.section-header p {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* Grid Layouts */
.achievements-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.achievement-card {
  background: var(--color-surface);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  border-left: 4px solid var(--color-primary);
  transition: var(--transition);
}

.achievement-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px var(--color-shadow-hover);
}

.achievement-title {
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.achievement-event {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  margin-bottom: var(--spacing-xs);
}

.achievement-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* Timeline Layouts */
.education-timeline,
.employment-timeline {
  position: relative;
  padding-left: var(--spacing-xl);
}

.education-timeline::before,
.employment-timeline::before {
  content: '';
  position: absolute;
  left: var(--spacing-md);
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.timeline-item {
  position: relative;
  margin-bottom: var(--spacing-xl);
  background: var(--color-surface);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.timeline-item:hover {
  transform: translateX(4px);
  box-shadow: 0 4px 20px var(--color-shadow-hover);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--spacing-xl) - 4px);
  top: var(--spacing-lg);
  width: 12px;
  height: 12px;
  background: var(--color-primary);
  border-radius: 50%;
  border: 3px solid var(--color-bg);
}

.timeline-title {
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.timeline-subtitle {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-sm);
}

.timeline-meta {
  display: flex;
  gap: var(--spacing-md);
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-sm);
}

.timeline-grades {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.grade-item {
  background: var(--color-border);
  padding: var(--spacing-sm);
  border-radius: var(--border-radius);
  text-align: center;
  font-size: 0.75rem;
}

.grade-subject {
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
}

.grade-value {
  color: var(--color-primary);
  font-weight: 600;
}

/* Skills Grid */
.skills-list {
  display: grid;
  gap: var(--spacing-xl);
}

.skills-category {
  background: var(--color-surface);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.skills-category:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px var(--color-shadow-hover);
}

.skills-category-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

.skills-category-header .iconify {
  font-size: 1.5rem;
  color: var(--color-primary);
}

.skills-category-header h3 {
  margin: 0;
  flex: 1;
  font-size: 1.25rem;
  font-weight: 600;
}

.skills-count {
  background: var(--color-primary);
  color: var(--color-bg);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  font-size: 0.75rem;
  font-weight: 600;
}

.skills-category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--spacing-sm);
}

.skill-tag {
  background: var(--color-border);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius);
  text-align: center;
  font-size: 0.875rem;
  font-weight: 500;
  transition: var(--transition);
  cursor: pointer;
}

.skill-tag:hover {
  background: var(--color-primary);
  color: var(--color-bg);
  transform: translateY(-2px);
}

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

.project-card {
  background: var(--color-surface);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
  border: 1px solid var(--color-border);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px var(--color-shadow-hover);
  border-color: var(--color-primary);
}

.project-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.project-title {
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.project-description {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  line-height: 1.5;
  margin-bottom: var(--spacing-md);
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.tech-tag {
  background: var(--color-border);
  color: var(--color-text);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  font-size: 0.75rem;
  font-weight: 500;
}

.project-links {
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  gap: var(--spacing-md);
}

.project-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-primary);
  color: var(--color-bg);
  text-decoration: none;
  border-radius: var(--border-radius);
  font-size: 0.875rem;
  font-weight: 500;
  transition: var(--transition);
}

.project-link:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--color-shadow);
}

.project-link.secondary {
  background: var(--color-border);
  color: var(--color-text);
}

.project-meta {
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.project-status {
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  font-weight: 500;
}

.project-status.completed {
  background: #10b981;
  color: white;
}

.project-status.in-progress {
  background: #f59e0b;
  color: white;
}

.project-status.planned {
  background: #6b7280;
  color: white;
}

.project-icon {
  width: 1.25em;
  height: 1.25em;
  vertical-align: middle;
  margin-right: 0.5em;
  object-fit: contain;
}

/* Books Grid */
.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.book-card {
  background: var(--color-surface);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}

.book-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px var(--color-shadow-hover);
}

.book-cover {
  width: 100%;
  height: 400px;
  object-fit: cover;
}

.book-info {
  padding: var(--spacing-lg);
}

.book-title {
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.book-blurb {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  line-height: 1.5;
  margin-bottom: var(--spacing-md);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.book-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.book-category {
  background: var(--color-primary);
  color: var(--color-bg);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  font-weight: 500;
}

/* Designs Grid */
.designs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.design-card {
  background: var(--color-surface);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}

.design-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px var(--color-shadow-hover);
}

.design-thumbnail {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.design-info {
  padding: var(--spacing-md);
}

.design-title {
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.design-category {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Videos Grid */
.videos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.video-card {
  background: var(--color-surface);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
}

.video-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px var(--color-shadow-hover);
}

.video-thumbnail {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.video-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

.video-card:hover .video-overlay {
  opacity: 1;
}

.play-button {
  width: 60px;
  height: 60px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--color-primary);
}

/* Social Grid */
.social-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  max-width: 800px;
  margin: 0 auto;
}

.social-card {
  background: var(--color-surface);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  text-align: center;
  transition: var(--transition);
  text-decoration: none;
  color: inherit;
}

.social-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px var(--color-shadow-hover);
}

.social-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

.social-name {
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.social-handle {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  z-index: 2000;
  backdrop-filter: blur(4px);
}

.modal.show {
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease-out;
}

.modal-content {
  background: var(--color-bg);
  border-radius: var(--border-radius-lg);
  max-width: 90vw;
  max-height: 90vh;
  overflow: hidden;
  animation: slideUp 0.3s ease-out;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-text-muted);
  transition: var(--transition);
}

.modal-close:hover {
  color: var(--color-text);
  transform: scale(1.1);
}

.modal-body {
  padding: var(--spacing-lg);
}

.video-container {
  width: 100%;
  max-width: 800px;
  aspect-ratio: 16/9;
}

.video-container iframe {
  width: 100%;
  height: 100%;
  border: none;
  border-radius: var(--border-radius);
}

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

@keyframes slideUp {
  from { 
    opacity: 0;
    transform: translateY(20px);
  }
  to { 
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideDown {
  from { 
    opacity: 0;
    transform: translateY(-10px);
  }
  to { 
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-md);
  }
  
  .header-content {
    flex-direction: column;
    gap: var(--spacing-md);
  }
  
  .search-container {
    order: 2;
    max-width: none;
  }
  
  .theme-toggle {
    order: 1;
    align-self: flex-end;
  }
  
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }
  
  .tab-list {
    padding: var(--spacing-sm) 0;
  }
  
  .tab-btn {
    padding: var(--spacing-sm);
    font-size: 0.75rem;
  }
  
  .tab-btn span:last-child {
    display: none;
  }
  
  .achievements-grid,
  .projects-grid,
  .books-grid,
  .designs-grid,
  .videos-grid {
    grid-template-columns: 1fr;
  }
  
  .articles-grid {
    grid-template-columns: 1fr;
  }
  
  .articles-filters {
    flex-direction: column;
    align-items: stretch;
    gap: var(--spacing-md);
  }
  
  .filter-group {
    justify-content: space-between;
  }
  
  .memories-masonry {
    columns: 1;
  }
  
  .skills-category-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }
  
  .social-grid {
    grid-template-columns: 1fr;
  }
  
  .timeline-meta {
    flex-direction: column;
    gap: var(--spacing-xs);
  }
  
  .timeline-grades {
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  }
  
  .modal-content {
    max-width: 95vw;
    max-height: 95vh;
  }
  
  .modal-header,
  .modal-body {
    padding: var(--spacing-md);
  }
  
  .post-title {
    font-size: 2rem;
  }
  
  .post-content {
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-stats {
    grid-template-columns: 1fr;
  }
  
  .stat-item {
    padding: var(--spacing-md);
  }
  
  .section-header h2 {
    font-size: 2rem;
  }
  
  .timeline-item {
    padding: var(--spacing-md);
  }
  
  .book-info,
  .design-info {
    padding: var(--spacing-md);
  }
  
  .post-title {
    font-size: 1.75rem;
  }
  
  .memories-masonry {
    columns: 1;
  }
  
  .post-meta {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .skills-category {
    padding: var(--spacing-md);
  }
  
  .skills-category-grid {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  }
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-surface);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-accent);
}

/* Focus styles for accessibility */
button:focus,
input:focus,
.tab-btn:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Print styles */
@media print {
  .header,
  .nav-tabs,
  .theme-toggle,
  .search-container {
    display: none;
  }
  
  .tab-content {
    display: block !important;
  }
  
  .main-content {
    padding: 0;
  }
<<<<<<< HEAD
}
=======
}
>>>>>>> origin/main