@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* Light theme colors */
  --light-primary-color: #2563eb;
  --light-primary-dark: #1d4ed8;
  --light-primary-light: #3b82f6;
  --light-secondary-color: #64748b;
  --light-accent-color: #0f172a;
  --light-text-primary: #0f172a;
  --light-text-secondary: #64748b;
  --light-text-muted: #94a3b8;
  --light-bg-primary: #ffffff;
  --light-bg-secondary: #f8fafc;
  --light-bg-tertiary: #f1f5f9;
  --light-bg-accent: #eff6ff;
  --light-border-color: #e2e8f0;
  --light-border-light: #f1f5f9;
  --light-shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --light-shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --light-shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --light-shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

  /* Dark theme colors */
  --dark-primary-color: #60a5fa;
  --dark-primary-dark: #3b82f6;
  --dark-primary-light: #93c5fd;
  --dark-secondary-color: #94a3b8;
  --dark-accent-color: #e5e7eb;
  --dark-text-primary: #f1f5f9;
  --dark-text-secondary: #cbd5e1;
  --dark-text-muted: #94a3b8;
  --dark-bg-primary: #0a0e1a;
  --dark-bg-secondary: #0f1420;
  --dark-bg-tertiary: #1a1f2e;
  --dark-bg-accent: #1e3a8a;
  --dark-border-color: #1e293b;
  --dark-border-light: #334155;
  --dark-shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.5);
  --dark-shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.6), 0 2px 4px -2px rgb(0 0 0 / 0.5);
  --dark-shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.6), 0 4px 6px -4px rgb(0 0 0 / 0.5);
  --dark-shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.7), 0 8px 10px -6px rgb(0 0 0 / 0.6);

  /* Default to dark theme */
  --primary-color: var(--dark-primary-color);
  --primary-dark: var(--dark-primary-dark);
  --primary-light: var(--dark-primary-light);
  --secondary-color: var(--dark-secondary-color);
  --accent-color: var(--dark-accent-color);
  --text-primary: var(--dark-text-primary);
  --text-secondary: var(--dark-text-secondary);
  --text-muted: var(--dark-text-muted);
  --bg-primary: var(--dark-bg-primary);
  --bg-secondary: var(--dark-bg-secondary);
  --bg-tertiary: var(--dark-bg-tertiary);
  --bg-accent: var(--dark-bg-accent);
  --border-color: var(--dark-border-color);
  --border-light: var(--dark-border-light);
  --shadow-sm: var(--dark-shadow-sm);
  --shadow-md: var(--dark-shadow-md);
  --shadow-lg: var(--dark-shadow-lg);
  --shadow-xl: var(--dark-shadow-xl);

  /* Common properties */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;
}

/* Light theme override */
[data-theme="light"] {
  --primary-color: var(--light-primary-color);
  --primary-dark: var(--light-primary-dark);
  --primary-light: var(--light-primary-light);
  --secondary-color: var(--light-secondary-color);
  --accent-color: var(--light-accent-color);
  --text-primary: var(--light-text-primary);
  --text-secondary: var(--light-text-secondary);
  --text-muted: var(--light-text-muted);
  --bg-primary: var(--light-bg-primary);
  --bg-secondary: var(--light-bg-secondary);
  --bg-tertiary: var(--light-bg-tertiary);
  --bg-accent: var(--light-bg-accent);
  --border-color: var(--light-border-color);
  --border-light: var(--light-border-light);
  --shadow-sm: var(--light-shadow-sm);
  --shadow-md: var(--light-shadow-md);
  --shadow-lg: var(--light-shadow-lg);
  --shadow-xl: var(--light-shadow-xl);
}

* {
  box-sizing: border-box;
}

body {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  padding: 2rem;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text-primary);
  font-weight: 400;
  line-height: 1.7;
  font-size: 16px;
  min-height: 100vh;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(circle at 20% 80%, var(--primary-color) 0%, transparent 60%),
    radial-gradient(circle at 80% 20%, var(--primary-light) 0%, transparent 60%),
    radial-gradient(circle at 40% 40%, var(--accent-color) 0%, transparent 70%);
  opacity: 0.04;
  pointer-events: none;
  z-index: -1;
  transition: opacity 0.4s ease;
  animation: backgroundPulse 20s ease-in-out infinite;
}

@keyframes backgroundPulse {
  0%, 100% { opacity: 0.04; }
  50% { opacity: 0.08; }
}

[data-theme="dark"] body::before {
  opacity: 0.15;
  background:
    radial-gradient(circle at 20% 80%, var(--primary-color) 0%, transparent 40%),
    radial-gradient(circle at 80% 20%, var(--primary-light) 0%, transparent 40%),
    radial-gradient(circle at 60% 70%, rgba(139, 92, 246, 0.4) 0%, transparent 50%),
    radial-gradient(circle at 40% 30%, rgba(14, 165, 233, 0.3) 0%, transparent 50%);
}

[data-theme="dark"] @keyframes backgroundPulse {
  0%, 100% { opacity: 0.15; }
  50% { opacity: 0.22; }
}

[data-theme="light"] body::before {
  opacity: 0.03;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  margin: 0 0 1.5rem;
  font-weight: 600;
  letter-spacing: -0.025em;
}

p, ul, ol, table, pre, dl {
  margin: 0 0 20px;
  color: var(--text-primary);
}

[data-theme="dark"] p {
  color: var(--dark-text-secondary);
}

h1, h2, h3 {
  line-height:1.1;
}

h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  transition: all 0.3s ease;
  position: relative;
}

[data-theme="dark"] h1 {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 50%, #a855f7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 30px rgba(96, 165, 250, 0.6));
}

[data-theme="light"] h1 {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

h2 {
  font-size: 1.5rem;
  color: var(--text-primary);
  font-weight: 600;
  transition: all 0.3s ease;
  position: relative;
}

[data-theme="dark"] h2 {
  color: var(--primary-light);
  filter: drop-shadow(0 0 20px rgba(96, 165, 250, 0.5));
}

h2:hover {
  transform: translateY(-1px);
}

[data-theme="dark"] h2:hover {
  filter: drop-shadow(0 0 35px rgba(96, 165, 250, 0.7));
}

h3 {
  font-size: 1.25rem;
  color: var(--text-primary);
  font-weight: 600;
  transition: all 0.3s ease;
}

[data-theme="dark"] h3 {
  color: var(--dark-text-primary);
  filter: drop-shadow(0 0 15px rgba(96, 165, 250, 0.3));
}

h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 500;
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover, a:focus {
  color: var(--primary-dark);
}

a small {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: -0.3em;
  display: block;
}

a:hover small {
  color: var(--text-secondary);
}

p.link {
  margin:0 0 4px;
}

ul.link {
  list-style-type: none;
  margin: 0;
  padding: 0.4px;
}

ul.link li + li {
  margin-top: 6px;
}

ul.link:last-child {
  margin-bottom: 6px;
}

.wrapper {
  width: 1200px;
  max-width: 95vw;
  margin: 0 auto;
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  backdrop-filter: blur(20px);
}

[data-theme="dark"] .wrapper {
  background: rgba(10, 14, 26, 0.98);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-xl), 0 0 100px rgba(96, 165, 250, 0.2), inset 0 0 100px rgba(0, 0, 0, 0.2);
}

[data-theme="light"] .wrapper {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-xl), 0 0 40px rgba(37, 99, 235, 0.08);
}

[data-theme="dark"] .wrapper::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary-color), var(--primary-light), transparent);
  opacity: 0.8;
  animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
  0%, 100% { opacity: 0.8; }
  50% { opacity: 1; }
}

[data-theme="light"] .wrapper::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
  opacity: 0.4;
}

blockquote {
  border-left: 4px solid var(--primary-color);
  margin: 1.5rem 0;
  padding: 1rem 0 1rem 1.5rem;
  font-style: italic;
  background: var(--bg-tertiary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  position: relative;
}

code, pre {
  font-family:Monaco, Bitstream Vera Sans Mono, Lucida Console, Terminal, Consolas, Liberation Mono, DejaVu Sans Mono, Courier New, monospace;
  color: #333;
}

pre {
  padding: 1.5rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  overflow-x: auto;
  box-shadow: var(--shadow-sm);
  position: relative;
}

code {
  background: var(--bg-tertiary);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
}

table {
  width:100%;
  border-collapse:collapse;
}

th, td {
  text-align: left;
  padding: 5px 10px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
}

dt {
  color: var(--text-primary);
  font-weight: 700;
}

th {
  color: var(--text-primary);
}

img {
  max-width:100%;
}

kbd {
  background-color: #f7f7f7;
  border: 1px solid #ccc;
  border-bottom-color: #bbb;
  border-radius: 3px;
  box-shadow: inset 0 -1px 0 #bbb;
  color: #333;
  display: inline-block;
  font-size: 11px;
  line-height: 10px;
  padding: 3px 5px;
  vertical-align: middle;
}

.sidebar {
  width: 320px;
  float: left;
  position: fixed;
  -webkit-font-smoothing: subpixel-antialiased;
  top: 0;
  padding: 3rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  height: 100vh;
  overflow-x: hidden;
  overflow-y: auto;
  -ms-overflow-style: -ms-autohiding-scrollbar;
  background: var(--bg-primary);
  border-right: 1px solid var(--border-color);
  transition: all 0.3s ease;
  position: relative;
}

[data-theme="dark"] .sidebar {
  background: linear-gradient(180deg, rgba(10, 14, 26, 0.98) 0%, rgba(15, 20, 32, 0.98) 100%);
  border-right: 1px solid var(--border-light);
  backdrop-filter: blur(20px);
  box-shadow: inset -10px 0 30px rgba(0, 0, 0, 0.5);
}

[data-theme="light"] .sidebar {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
}

[data-theme="dark"] .sidebar::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 2px;
  height: 100%;
  background: linear-gradient(180deg, transparent, var(--primary-color), var(--primary-light), transparent);
  opacity: 0.7;
  animation: verticalShimmer 4s ease-in-out infinite;
}

@keyframes verticalShimmer {
  0%, 100% { opacity: 0.7; }
  50% { opacity: 1; }
}

/* Profile Photo Styling */
.img-circle {
  width: 100px !important;
  height: 100px !important;
  border-radius: var(--radius-full) !important;
  object-fit: cover;
  border: 3px solid var(--border-color);
  box-shadow: var(--shadow-md);
  margin: 0 auto 1.5rem auto !important;
  display: block !important;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  animation: fadeInUp 1s ease-out;
  position: relative;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

[data-theme="dark"] .img-circle {
  border: 3px solid var(--primary-color);
  box-shadow: var(--shadow-lg), 0 0 30px rgba(96, 165, 250, 0.6), 0 0 60px rgba(96, 165, 250, 0.3);
}

[data-theme="dark"] .img-circle::before {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: var(--radius-full);
  background: linear-gradient(45deg, var(--primary-color), var(--primary-light), var(--primary-color));
  z-index: -1;
  opacity: 0;
  transition: opacity 0.4s ease;
  animation: rotate 3s linear infinite;
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.img-circle:hover {
  box-shadow: var(--shadow-lg);
  transform: scale(1.08) rotate(2deg);
}

[data-theme="dark"] .img-circle:hover {
  box-shadow: var(--shadow-xl), 0 0 50px rgba(96, 165, 250, 0.8), 0 0 100px rgba(96, 165, 250, 0.4);
  transform: scale(1.08) rotate(2deg);
}

[data-theme="dark"] .img-circle:hover::before {
  opacity: 0.7;
}

/* Header adjustments for profile photo */
header {
  text-align: center;
  margin-bottom: auto;
  animation: fadeIn 1.2s ease-out;
}

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

/* Theme Toggle */
.theme-toggle {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 10;
  animation: fadeInDown 0.8s ease-out;
}

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

.theme-switch {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 30px;
}

.theme-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.theme-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-tertiary);
  border: 2px solid var(--border-color);
  transition: all 0.3s ease;
  border-radius: 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 6px;
  font-size: 12px;
}

.theme-slider:before {
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  left: 3px;
  bottom: 2px;
  background: var(--primary-color);
  transition: all 0.3s ease;
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
}

input:checked + .theme-slider {
  background: var(--bg-accent);
  border-color: var(--primary-color);
}

input:checked + .theme-slider:before {
  transform: translateX(26px);
  background: var(--primary-dark);
}

.theme-slider .theme-icon {
  font-size: 10px;
  color: var(--text-muted);
  transition: color 0.3s ease;
  z-index: 1;
}

input:checked + .theme-slider .sun-icon {
  color: var(--primary-color);
}

input:not(:checked) + .theme-slider .moon-icon {
  color: var(--primary-color);
}

@-moz-document url-prefix() {
  .sidebar {
    scrollbar-width: none;
  }
}

.sidebar::-webkit-scrollbar {
  display: none;
}

strong {
  color: var(--text-primary);
  font-weight: 700;
}

[data-theme="dark"] strong {
  color: var(--primary-light);
  font-weight: 700;
}

section {
  width: calc(100% - 320px);
  float: right;
  padding: 3rem 3rem;
  background: var(--bg-primary);
  min-height: 100vh;
  animation: slideInRight 0.8s ease-out;
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

small {
  font-size: 11px;
  color: var(--text-muted);
}

hr {
  border: 0;
  background: var(--border-color);
  height: 1px;
  width: 30%;
  margin: 10px auto 30px;
}

footer, .sidebar-footer {
  width:185px;
  float:left;
  bottom:30px;
  -webkit-font-smoothing:subpixel-antialiased;
}

footer {
  display: none;
}

.sidebar-footer {
  flex-basis: content;
}

@media print, screen and (max-width: 1200px) {
  body {
    padding: 1rem;
  }

  .wrapper {
    width: 100%;
    border-radius: var(--radius-lg);
    max-width: none;
  }

  .sidebar {
    width: 100%;
    position: static;
    height: auto;
    padding: 2.5rem 2rem;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-primary);
  }

  [data-theme="dark"] .sidebar {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-light);
  }

  [data-theme="dark"] .sidebar::after {
    display: none;
  }

  .sidebar::before {
    display: none;
  }

  section {
    width: 100%;
    float: none;
    padding: 2.5rem 2rem;
    margin: 0;
    min-height: auto;
  }

  section::before {
    display: none;
  }

  footer {
    display: initial;
  }

  .sidebar-footer {
    display: none;
  }

  .link-wrapper {
    display: none !important;
  }

  .img-circle {
    width: 100px !important;
    height: 100px !important;
    margin: 0 auto 1.5rem auto !important;
  }

  .timeline-year::before {
    left: -20px;
  }

  ul.link {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.75rem;
    margin: 1.5rem 0;
  }

  ul.link a {
    margin-bottom: 0;
  }
}

@media print, screen and (max-width: 720px) {
  body {
    word-wrap:break-word;
  }

  header {
    padding:0;
  }

  header ul, header p.view {
    position:static;
  }

  pre, code {
    word-wrap:normal;
  }
}

.link-wrapper-mobile {
  margin-bottom: 20px;
}

@media print, screen and (min-width: 961px) {
  .link-wrapper-mobile {
    display: none !important;
  }
}

@media print, screen and (max-width: 480px) {
  body {
    padding:15px;
  }
}

@media print {
  body {
    padding:0.4in;
    font-size:12pt;
    color:#444;
  }
}

/* Custom styling enhancements */
h2 {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.75rem;
  margin-top: 3rem;
  margin-bottom: 1.5rem;
  position: relative;
}

h2::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
  border-radius: 1px;
  transition: width 0.3s ease;
}

[data-theme="dark"] h2::after {
  box-shadow: 0 0 10px rgba(96, 165, 250, 0.5);
}

h2:hover::after {
  width: 120px;
}

h3 {
  margin-top: 25px;
}

ul.link {
  padding: 0;
  margin: 1.5rem 0;
}

ul.link a {
  display: flex;
  align-items: center;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border-bottom: none;
  background: var(--bg-secondary);
  margin-bottom: 0.5rem;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  position: relative;
  overflow: hidden;
}

[data-theme="dark"] ul.link a {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border: 1px solid var(--border-light);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

ul.link a::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
  transition: left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: -1;
}

ul.link a:hover {
  color: white;
  border-color: var(--primary-color);
  border-bottom: none;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(96, 165, 250, 0.3);
}

[data-theme="dark"] ul.link a:hover {
  box-shadow: 0 8px 25px rgba(96, 165, 250, 0.4);
}

ul.link a:hover::before {
  left: 0;
}

ul.link svg {
  margin-right: 8px;
  flex-shrink: 0;
}

/* Enhanced spacing and typography */
section {
  line-height: 1.6;
}

section p {
  margin-bottom: 16px;
}

section h3 + p {
  margin-top: -10px;
  font-style: italic;
  color: #666;
  font-size: 14px;
}

/* Featured Work Cards */
section h3 + p + p {
  background: var(--bg-secondary);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  margin: 1rem 0 2rem 0;
  transition: all 0.3s ease;
  position: relative;
}

[data-theme="dark"] section h3 + p + p {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border: 1px solid var(--border-light);
}

section h3 + p + p:hover {
  border-color: var(--primary-color);
  transform: translateY(-2px);
}

[data-theme="dark"] section h3 + p + p:hover {
  border-color: var(--primary-color);
  box-shadow: 0 0 25px rgba(96, 165, 250, 0.2);
  transform: translateY(-2px);
}

/* Featured work badges */
section h3 + p em {
  display: inline-block;
  background: var(--primary-color);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-style: normal;
  font-weight: 500;
  margin-bottom: 0.5rem;
  transition: all 0.2s ease;
}

[data-theme="dark"] section h3 + p em {
  box-shadow: 0 0 10px rgba(96, 165, 250, 0.3);
}

section h3 + p em:hover {
  transform: translateY(-1px);
}

[data-theme="dark"] section h3 + p em:hover {
  box-shadow: 0 0 15px rgba(96, 165, 250, 0.5);
}

/* Statistics list */
section ul li {
  background: var(--bg-secondary);
  padding: 1rem 1.5rem;
  margin: 0.75rem 0;
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--primary-color);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  list-style: none;
  position: relative;
  overflow: hidden;
}

[data-theme="dark"] section ul li {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border-left: 4px solid var(--primary-color);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

section ul li::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--primary-color), var(--primary-light));
  transition: width 0.3s ease;
}

[data-theme="dark"] section ul li::before {
  box-shadow: 0 0 10px rgba(96, 165, 250, 0.4);
}

section ul li:hover {
  background: var(--bg-accent);
  transform: translateX(8px);
  box-shadow: 0 8px 25px rgba(96, 165, 250, 0.2);
}

[data-theme="dark"] section ul li:hover {
  background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
  box-shadow: 0 8px 25px rgba(96, 165, 250, 0.3);
}

section ul li:hover::before {
  width: 8px;
}

section ul li strong {
  color: var(--primary-color);
  font-weight: 600;
  position: relative;
  z-index: 1;
}

/* Improved link styling in content */
section a {
  font-weight: 500;
}

section a[href^="http"]:after {
  content: " ↗";
  font-size: 12px;
  color: var(--text-muted);
  transition: all 0.2s ease;
}

section a[href^="http"]:hover:after {
  color: var(--primary-color);
  transform: translate(2px, -2px);
}

/* Professional Timeline */
.timeline-minimal {
  margin: 2rem 0;
  position: relative;
  padding-left: 1.5rem;
}

.timeline-minimal::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border-color);
  transition: all 0.3s ease;
}

[data-theme="dark"] .timeline-minimal::before {
  background: linear-gradient(180deg, var(--primary-color), var(--primary-light));
  box-shadow: 0 0 10px rgba(96, 165, 250, 0.3);
}

.timeline-year {
  margin-bottom: 1.5rem;
  position: relative;
  background: var(--bg-secondary);
  padding: 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

[data-theme="dark"] .timeline-year {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border: 1px solid var(--border-light);
}

[data-theme="dark"] .timeline-year:hover {
  background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
  border-color: var(--primary-color);
  box-shadow: 0 0 20px rgba(96, 165, 250, 0.2);
  transform: translateY(-2px);
}

.timeline-year:last-child {
  margin-bottom: 0;
}

.timeline-year::before {
  content: '';
  position: absolute;
  left: -24px;
  top: 1.25rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary-color);
  border: 2px solid var(--bg-primary);
  transition: all 0.3s ease;
}

[data-theme="dark"] .timeline-year::before {
  background: var(--primary-color);
  border: 2px solid var(--bg-primary);
  box-shadow: 0 0 10px rgba(96, 165, 250, 0.5);
}

.timeline-year h3 {
  color: var(--primary-color);
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0 0 0.75rem 0;
}

.year-events {
  margin-left: 0;
}

.event {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 0.5rem 0;
  position: relative;
  padding-left: 1rem;
}

.event:before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-weight: bold;
}

@media print, screen and (max-width: 720px) {
  .timeline-minimal {
    padding-left: 25px;
  }

  .timeline-minimal::before {
    left: 6px;
  }

  .timeline-year::before {
    left: -21px;
    width: 6px;
    height: 6px;
  }
  
  .timeline-year h3 {
    font-size: 16px;
  }
  
  .event {
    font-size: 13px;
    padding-left: 12px;
  }
  
  .year-events {
    margin-left: 10px;
  }
}
/* Home page layout */
.home-hero {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
  gap: 2.5rem;
  padding: 3rem;
  margin-bottom: 3rem;
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.home-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 0% 0%, rgba(37, 99, 235, 0.18), transparent 50%),
              radial-gradient(circle at 90% 10%, rgba(14, 116, 144, 0.16), transparent 55%);
  pointer-events: none;
}

.home-hero > * {
  position: relative;
  z-index: 1;
}

.hero-text {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: var(--bg-tertiary);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
  width: fit-content;
  box-shadow: var(--shadow-sm);
}

.hero-lead {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 38rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn-primary,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, border 0.2s ease;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  color: #ffffff;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

.btn-ghost:hover {
  border-color: var(--primary-color);
  color: var(--primary-light);
  transform: translateY(-2px);
}

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

.tag {
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-full);
  background: var(--bg-tertiary);
  font-size: 0.82rem;
  color: var(--text-muted);
  border: 1px dashed var(--border-light);
}

.hero-panel {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  padding: 2rem;
  border-radius: var(--radius-xl);
  background: linear-gradient(160deg, rgba(59, 130, 246, 0.14), rgba(236, 72, 153, 0.12));
  border: 1px solid rgba(148, 163, 184, 0.15);
  box-shadow: var(--shadow-md);
}

.hero-photo {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid rgba(255, 255, 255, 0.35);
  box-shadow: var(--shadow-lg);
}

.hero-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-panel-body {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  color: var(--text-secondary);
}

.hero-panel-body h3 {
  margin: 0;
  font-size: 1rem;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.hero-panel-body ul {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.6rem;
}

.hero-panel-body li {
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.panel-link {
  font-weight: 600;
  color: var(--primary-light);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.panel-link:hover {
  color: var(--primary-color);
}

.home-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3.5rem;
}

.metric-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  padding: 1.75rem;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.metric-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.metric-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
}

.metric-detail {
  color: var(--text-secondary);
  font-size: 0.92rem;
}

.home-section {
  margin-bottom: 4rem;
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  padding: 3rem;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
}

.section-heading {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.section-heading h2 {
  margin: 0;
  font-size: 1.75rem;
}

.section-heading p {
  margin: 0;
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 38rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.75rem;
}

.feature-card {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  box-shadow: var(--shadow-md);
  height: 100%;
}

.feature-card-header {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.feature-card-header h3 {
  margin: 0;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.8rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-light);
  color: var(--text-muted);
  background: var(--bg-tertiary);
}

.badge-primary {
  color: var(--primary-light);
  border-color: rgba(96, 165, 250, 0.4);
  background: rgba(37, 99, 235, 0.08);
}

.badge-secondary {
  color: #ec4899;
  border-color: rgba(236, 72, 153, 0.35);
  background: rgba(236, 72, 153, 0.08);
}

.feature-list {
  margin: 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 0.65rem;
  color: var(--text-secondary);
}

.feature-list li {
  font-size: 0.95rem;
}

.text-link {
  color: var(--primary-light);
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.text-link:hover {
  color: var(--primary-color);
}

.experience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.experience-card {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  box-shadow: var(--shadow-md);
}

.experience-card header {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.experience-card header h3 {
  margin: 0;
}

.experience-card ul {
  margin: 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 0.6rem;
  color: var(--text-secondary);
}

.research-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.research-card {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  box-shadow: var(--shadow-md);
}

.research-card h3 {
  margin: 0;
}

.research-card .meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.timeline-modern {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.timeline-row {
  display: grid;
  grid-template-columns: 100px minmax(0, 1fr);
  gap: 1.5rem;
  padding: 1.5rem;
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-md);
}

.timeline-year {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-light);
}

.timeline-content {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  color: var(--text-secondary);
}

.toolbox {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  padding: 2rem;
  box-shadow: var(--shadow-md);
}

.tool-column {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.tool-column h3 {
  margin: 0;
  font-size: 1rem;
  color: var(--text-primary);
}

.tool-column ul {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.5rem;
  color: var(--text-secondary);
}

.callout {
  margin-bottom: 3rem;
}

.callout-body {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.18), rgba(147, 51, 234, 0.15));
  border-radius: var(--radius-xl);
  padding: 3rem;
  border: 1px solid rgba(96, 165, 250, 0.3);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  align-items: flex-start;
}

.callout-body h2 {
  margin: 0;
  font-size: 1.8rem;
}

.callout-body p {
  margin: 0;
  max-width: 40rem;
  color: var(--text-secondary);
}

@media (max-width: 960px) {
  .home-hero {
    grid-template-columns: 1fr;
    padding: 2.25rem;
  }

  .hero-panel {
    flex-direction: row;
    align-items: center;
  }

  .hero-panel-body {
    gap: 0.75rem;
  }

  .hero-photo {
    flex-shrink: 0;
  }
}

@media (max-width: 720px) {
  .home-section {
    padding: 2.25rem 1.75rem;
  }

  .callout-body {
    padding: 2.5rem;
  }
}

@media (max-width: 540px) {
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-panel {
    flex-direction: column;
    align-items: flex-start;
  }

  .timeline-row {
    grid-template-columns: 1fr;
  }
}