:root {
  --uiuc-orange: #FF5F05;
  --uiuc-blue: #13294B;
  --uiuc-blue-light: #1e3a8a;
  --uiuc-gray: #64748b;
  --uiuc-bg: #f8fafc;
  --uiuc-white: #ffffff;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f4f4f4;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
header {
    background: linear-gradient(135deg, #13294B 0%, #1e3a8a 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
}
header h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    animation: fadeInDown 1s ease;
}
header p {
    font-size: 1.3rem;
    opacity: 0.95;
    animation: fadeInUp 1s ease;
    margin-bottom: 1rem;
}
.header-subtitle {
    font-size: 1rem;
    opacity: 0.85;
}
.contact-links {
    margin-top: 1.5rem;
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}
.contact-links a {
    color: #FF5F05;
    text-decoration: none;
    transition: opacity 0.3s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.contact-links a:hover {
    opacity: 0.7;
}
nav {
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}
nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    padding: 1rem 0;
    flex-wrap: wrap;
}
nav li {
    margin: 0 1.5rem;
}
nav a {
    color: #13294B;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}
nav a:hover {
    color: #FF5F05;
}
section {
    padding: 4rem 0;
    background: white;
    margin: 2rem 0;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    text-align: center;
    color: #13294B;
}
.about-content {
    max-width: 900px;
    margin: 0 auto;
}
.about-content p {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    line-height: 1.8;
}
.education-box {
    background: #f8fafc;
    padding: 2rem;
    border-radius: 10px;
    border-left: 4px solid #FF5F05;
    margin-top: 2rem;
}
.education-box h3 {
    color: #13294B;
}
.education-details {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-bottom: 1rem;
    color: #64748b;
}
.coursework {
    margin-top: 1rem;
}
.coursework strong {
    color: #13294B;
}
.skills-container {
    max-width: 1000px;
    margin: 0 auto;
}
.skill-category-header {
    color: #13294B;
    margin-bottom: 2rem;
    font-size: 1.8rem;
    text-align: center;
}
.skills-grid {
    display: grid;
    gap: 1.5rem;
    margin-bottom: 3rem;
}
.skill-card {
    background: #f8fafc;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    padding: 1.5rem;
    cursor: pointer;
    transition: all 0.3s;
}
.skill-card:hover {
    border-color: #FF5F05;
    box-shadow: 0 4px 15px rgba(255, 95, 5, 0.25);
}
.skill-card.expanded {
    border-color: #FF5F05;
    background: white;
}
.skill-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.skill-title {
    display: flex;
    align-items: center;
    gap: 1rem;
}
.skill-title h3 {
    color: #13294B;
    font-size: 1.3rem;
    margin: 0;
}
.proficiency-badge {
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.85rem;
    font-weight: 600;
}
.proficiency-expert {
    background: #dcfce7;
    color: #166534;
}
.proficiency-advanced {
    background: #dbeafe;
    color: #1e40af;
}
.proficiency-intermediate {
    background: #fef3c7;
    color: #92400e;
}
.proficiency-beginner {
    background: #fef3c9;
    color: #f39c12;
}
.proficiency-learning {
    background: #f3e8ff;
    color: #6b21a8;
}
.expand-icon {
    font-size: 1.5rem;
    color: #FF5F05;
    transition: transform 0.3s;
}
.skill-card.expanded .expand-icon {
    transform: rotate(180deg);
}
.skill-details {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}
.skill-card.expanded .skill-details {
    max-height: 800px;
}
.skill-content {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 2px solid #e2e8f0;
}
.skill-content p {
    color: #475569;
    line-height: 1.8;
    margin-bottom: 1rem;
}
.skill-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}
.highlight-tag {
    background: #dbeafe;
    color: #1e40af;
    padding: 0.4rem 0.8rem;
    border-radius: 5px;
    font-size: 0.9rem;
}
.learning-path {
    background: #fef3c7;
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
    border-left: 3px solid #FF5F05;
}
.learning-path strong {
    color: #92400e;
}
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}
.project-card {
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    overflow: hidden;
    transition: all 0.3s;
}
.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(19, 41, 75, 0.25);
    border-color: #FF5F05;
}
.project-header {
    background: linear-gradient(135deg, #13294B 0%, #1e3a8a 100%);
    color: white;
    padding: 1.5rem;
}
.project-header h3 {
    margin-bottom: 0.5rem;
    font-size: 1.4rem;
}
.project-metrics {
    font-size: 0.9rem;
    opacity: 0.9;
    margin-top: 0.5rem;
}
.project-content {
    padding: 1.5rem;
}
.project-content p {
    color: #475569;
    margin-bottom: 1rem;
    line-height: 1.8;
}
.project-content ul {
    list-style: none;
    padding-left: 0;
    margin-top: 1rem;
}
.project-content li {
    margin-bottom: 0.8rem;
    padding-left: 1.5rem;
    position: relative;
    color: #475569;
}
.project-content li:before {
    content: "▸";
    color: #FF5F05;
    position: absolute;
    left: 0;
    font-weight: bold;
}
.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}
.tech-badge {
    background: #f1f5f9;
    color: #475569;
    padding: 0.3rem 0.8rem;
    border-radius: 5px;
    font-size: 0.85rem;
}
.btn {
    display: inline-block;
    padding: 0.7rem 1.5rem;
    background: #FF5F05;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s;
    margin-top: 1rem;
}
.btn:hover {
    background: #e55404;
}
.experience-section {
    max-width: 900px;
    margin: 0 auto;
}
.experience-card {
    background: #f8fafc;
    padding: 2rem;
    border-radius: 10px;
    border-left: 4px solid #FF5F05;
}
.experience-header {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}
.experience-header h3 {
    color: #13294B;
    font-size: 1.3rem;
}
.experience-date {
    color: #64748b;
    font-style: italic;
}
.experience-card ul {
    list-style: none;
    padding-left: 0;
}
.experience-card li {
    margin-bottom: 0.8rem;
    padding-left: 1.5rem;
    position: relative;
}
.experience-card li:before {
    content: "•";
    color: #FF5F05;
    position: absolute;
    left: 0;
    font-weight: bold;
    font-size: 1.2rem;
}
footer {
    background: #13294B;
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: 2rem;
}
footer p {
    opacity: 0.8;
}
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    header p {
        font-size: 1rem;
    }
    h2 {
        font-size: 2rem;
    }
    nav ul {
        flex-direction: column;
        align-items: center;
    }
    nav li {
        margin: 0.5rem 0;
    }
    .projects-grid {
        grid-template-columns: 1fr;
    }
    .experience-header {
        flex-direction: column;
    }
    .contact-links {
        flex-direction: column;
        gap: 1rem;
    }
}