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

:root {
    --primary-color: #2563eb;
    --secondary-color: #0f172a;
    --accent-color: #f59e0b;
    --text-color: #1e293b;
    --text-light: #64748b;
    --bg-color: #ffffff;
    --bg-light: #f8fafc;
    --border-color: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.navbar {
    background-color: var(--secondary-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
}

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

.nav-menu a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    padding: 0.5rem 1rem;
    border-radius: 4px;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--accent-color);
    background-color: rgba(255, 255, 255, 0.1);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background-color: white;
    border-radius: 2px;
}

.hero {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #1e40af 100%);
    color: white;
    padding: 4rem 0;
}

.hero-content {
    display: flex;
    align-items: center;
    gap: 3rem;
}

.hero-image img {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid white;
    box-shadow: var(--shadow-lg);
}

.hero-text h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.highlight {
    color: var(--accent-color);
}

.hero-text h2 {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 1rem;
    color: #cbd5e1;
}

.intro-text {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: #e2e8f0;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.social-links a {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    transition: all 0.3s;
}

.social-links a:hover {
    background-color: var(--accent-color);
    transform: translateY(-3px);
}

.cta-buttons {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
}

.btn-primary {
    background-color: var(--accent-color);
    color: white;
}

.btn-primary:hover {
    background-color: #ea580c;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background-color: white;
    color: var(--secondary-color);
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.highlights {
    padding: 4rem 0;
    background-color: var(--bg-light);
}

.highlights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.highlight-card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.3s;
}

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

.highlight-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.highlight-card h3 {
    margin-bottom: 0.5rem;
    color: var(--secondary-color);
}

.highlight-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

.page-header {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #1e40af 100%);
    color: white;
    padding: 3rem 0;
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.page-header p {
    font-size: 1.2rem;
    color: #cbd5e1;
}

.projects-section,
.timeline-section,
.education-section,
.skills-section,
.publications-section,
.about-story,
.connect-section {
    padding: 4rem 0;
}

.projects-section h2,
.section-title {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--secondary-color);
    text-align: center;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.project-card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
    border-left: 4px solid var(--primary-color);
}

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

.project-card h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.project-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.skill-tag {
    background-color: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
}

.project-card p {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.project-links {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

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

.playlist-card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    text-align: center;
}

.playlist-card i {
    font-size: 3rem;
    color: #ff0000;
    margin-bottom: 1rem;
}

.timeline {
    position: relative;
    padding: 2rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100%;
    background: var(--primary-color);
}

.timeline-item {
    display: flex;
    margin-bottom: 3rem;
    position: relative;
}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
}

.timeline-date {
    flex: 1;
    text-align: right;
    padding-right: 2rem;
    font-weight: 600;
    color: var(--primary-color);
}

.timeline-item:nth-child(odd) .timeline-date {
    text-align: left;
    padding-left: 2rem;
    padding-right: 0;
}

.timeline-content {
    flex: 1;
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-left: 2rem;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-left: 0;
    margin-right: 2rem;
}

.timeline-content h3 {
    color: var(--secondary-color);
    margin-bottom: 0.25rem;
}

.timeline-content h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.timeline-content p {
    color: var(--text-light);
}

.education-section {
    background-color: var(--bg-light);
}

.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.education-card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    text-align: center;
}

.education-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.education-card h3 {
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.education-card h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.bootcamps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.bootcamp-card {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--accent-color);
}

.bootcamp-card h3 {
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.bootcamp-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

.bootcamp-card .date {
    color: var(--primary-color);
    font-weight: 600;
    margin-top: 0.5rem;
}

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

.skill-category {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.skill-category h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.skill-category i {
    color: var(--primary-color);
}

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

.skill-badge {
    background-color: var(--bg-light);
    color: var(--text-color);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
    border: 1px solid var(--border-color);
}

.publications-section {
    background-color: var(--bg-light);
}

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

.publication-card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    text-align: center;
}

.publication-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.publication-card h3 {
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.publication-card p {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.podcast-title {
    margin-top: 3rem;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    color: var(--secondary-color);
}

.podcast-list {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.podcast-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

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

.podcast-item i {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-top: 0.25rem;
}

.about-story {
    max-width: 900px;
    margin: 0 auto;
}

.story-content h2 {
    color: var(--secondary-color);
    margin: 2rem 0 1rem;
    font-size: 1.8rem;
}

.story-content p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
    font-size: 1.05rem;
}

.story-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.highlight-box {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}

.highlight-box i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.highlight-box h3 {
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.highlight-box p {
    color: var(--text-light);
}

.connect-section {
    background-color: var(--bg-light);
}

.connect-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem;
    color: var(--text-light);
    font-size: 1.1rem;
}

.connect-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.connect-card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    text-align: center;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s;
}

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

.connect-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.connect-card h3 {
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.connect-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

footer {
    background-color: var(--secondary-color);
    color: white;
    padding: 2rem 0;
    text-align: center;
}

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

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

#chatbot-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 1000;
}

#chatbot-toggle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), #1e40af);
    color: white;
    border: none;
    cursor: pointer;
    font-size: 1.5rem;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s;
}

#chatbot-toggle:hover {
    transform: scale(1.1);
}

#chatbot-window {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 350px;
    max-height: 500px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    display: none;
    flex-direction: column;
    overflow: hidden;
}

#chatbot-window.active {
    display: flex;
}

#chatbot-header {
    background: linear-gradient(135deg, var(--primary-color), #1e40af);
    color: white;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#chatbot-header h3 {
    margin: 0;
    font-size: 1.1rem;
}

#chatbot-close {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
}

#chatbot-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    max-height: 300px;
}

.bot-message {
    background: var(--bg-light);
    padding: 0.75rem;
    border-radius: 8px;
    margin-bottom: 0.5rem;
    animation: slideIn 0.3s ease;
}

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

#chatbot-options {
    padding: 1rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.chatbot-option {
    background: white;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    padding: 0.75rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 500;
}

.chatbot-option:hover {
    background: var(--primary-color);
    color: white;
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--secondary-color);
        flex-direction: column;
        padding: 1rem;
        gap: 0;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-content {
        flex-direction: column;
        text-align: center;
    }

    .hero-text h1 {
        font-size: 2rem;
    }

    .social-links {
        justify-content: center;
    }

    .cta-buttons {
        flex-direction: column;
    }

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

    .timeline-item {
        flex-direction: column !important;
    }

    .timeline-date {
        text-align: left !important;
        padding-left: 50px !important;
        padding-right: 0 !important;
        margin-bottom: 0.5rem;
    }

    .timeline-content {
        margin-left: 50px !important;
        margin-right: 0 !important;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    #chatbot-window {
        width: 90vw;
        right: 5vw;
    }

    #chatbot-container {
        right: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-image img {
        width: 200px;
        height: 200px;
    }

    .hero-text h1 {
        font-size: 1.75rem;
    }

    .page-header h1 {
        font-size: 2rem;
    }
}