/* ===== CLASSIC DARK THEME WITH WHITE ACCENTS ===== */
:root {
    /* Colors */
    --color-bg: #121212;
    --color-bg-alt: #1e1e1e;
    --color-primary: #ffffff;
    --color-secondary: #e0e0e0;
    --color-accent: #f7f7f7;
    --color-text: #f5f5f5;
    --color-text-muted: #aaaaaa;
    --color-border: #303030;

    /* Typography */
    --font-primary: 'Source Sans Pro', sans-serif;
    --font-secondary: 'Playfair Display', serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;

    /* Other */
    --border-radius: 8px;
    --transition: all 0.3s ease;
    --shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

/* ===== RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

/* Hide scrollbar for Chrome/Safari/Opera */
::-webkit-scrollbar {
    display: none;
}

html {
    scroll-behavior: smooth;
}

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

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

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

button {
    cursor: pointer;
    border: none;
    outline: none;
    background: none;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-secondary);
    color: var(--color-text);
    line-height: 1.2;
}

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

h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

p {
    margin-bottom: var(--spacing-sm);
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-sm) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--color-primary);
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: var(--color-primary);
    color: var(--color-bg);
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: var(--transition);
}

.btn:hover {
    background-color: var(--color-accent);
    color: var(--color-bg);
    transform: translateY(-2px);
}

.logo {
    font-family: var(--font-secondary);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

/* ===== ABOUT SECTION ===== */
.about-section {
    padding-top: 7.5%;
    background-color: var(--color-bg);
    position: relative;
    overflow: hidden;
}

.about-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top right, rgba(79, 79, 79, 0.05), transparent 60%);
}

.profile-container {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    min-height: 144px;
}

.profile-image {
    width: 144px;
    height: 144px;
    position: relative;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.profile-image img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    transition: all 0.3s ease;
}

@media (min-width: 992px) {
    .profile-image:hover {
        width: 288px;
        height: 288px;
        margin-bottom: 2rem;
    }
    
    .profile-image:hover img {
        width: 288px;
        height: 288px;
        border-radius: 8px;
    }
    
    .profile-info {
        transition: var(--transition);
        will-change: transform;
    }
}

@media (max-width: 991px) {
    .profile-image.expanded {
        width: 288px;
        height: 288px;
        margin-bottom: 2rem;
    }
    
    .profile-image.expanded img {
        width: 288px;
        height: 288px;
        border-radius: 8px;
    }
}

.profile-info h3 {
    color: var(--color-text-muted);
    font-family: var(--font-primary);
    font-weight: 400;
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
    min-height: 1.8rem;
}

#job-title::after {
    content: '|';
    animation: blink 1s step-end infinite;
}

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

.social-buttons {
    display: flex;
    gap: 15px;
    padding: 10px 0;
}

.social-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    text-decoration: none;
    color: var(--color-text);
    font-size: 18px;
    transition: transform 0.3s ease, background-color 0.3s ease;
    position: relative;
    z-index: 10;
}

.linkedin-button {
    background-color: #0077B5;
}

.x-button {
    background-color: #000000;
    border: 2px solid var(--color-primary);
}

.social-button:hover {
    transform: scale(1.1);
}

.x-button:hover {
    background-color: var(--color-text) !important;
    border-color: var(--color-text) !important;
}

.x-button:hover i {
    color: var(--color-bg) !important;
}

.linkedin-button:hover {
    background-color: var(--color-text) !important;
}

.linkedin-button:hover i {
    color: var(--color-bg) !important;
}

.social-button:active,
.social-button:focus {
    outline: none;
    transform: scale(1.05);
}

.about-content {
    max-width: 800px;
}

/* ===== TIMELINE SECTION ===== */
.timeline-section {
    padding-bottom: var(--spacing-xs);
    background-color: var(--color-bg);
    position: relative;
}

.timeline-container {
    position: relative;
    display: flex;
    flex-direction: column;
}

.timeline-scroll-area {
    position: relative;
    overflow-x: auto;
    padding-top: 20px;
    max-width: 100%;
}

.timeline-track {
    position: relative;
    top: var(--spacing-md);
    left: 0;
    width: 100%;
    height: 4px;
    background-color: var(--color-border);
    z-index: 1;
}

.timeline-event-points {
    display: flex;
    justify-content: space-between;
    position: relative;
    z-index: 2;
    width: 100%;
    padding: 0 var(--spacing-sm);
}

@media (max-width: 768px) {
    .timeline-event-points {
        justify-content: flex-start;
        min-width: max-content;
        gap: var(--spacing-md);
        width: auto;
    }

    .timeline-track {
        top: var(--spacing-sm);
    }
}

.timeline-year-column {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    padding: 5px;
    border-radius: var(--border-radius);
}

.timeline-event-point {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 12px;
}

.event-year {
    position: absolute;
    top: -30px;
    font-family: var(--font-secondary);
    font-size: 1.2rem;
    color: var(--color-text-muted);
    transition: var(--transition);
}

.timeline-event-point:hover .event-year {
    color: var(--color-primary);
}

.timeline-event-point:hover .event-bubble {
    transform: scale(1.1);
    border-color: var(--color-primary);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    background-color: var(--color-primary);
    color: var(--color-bg);
}

.timeline-event-point.active .event-year {
    color: var(--color-primary);
}

.timeline-event-point.active .event-bubble {
    transform: scale(1.1);
    border-color: var(--color-primary);
    background-color: var(--color-primary);
    color: var(--color-bg);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.timeline-content-area {
    min-height: 150px;
}

.timeline-content-container {
    background-color: transparent;
    border-radius: var(--border-radius);
    opacity: 0;
    animation: fadeIn 0.5s ease forwards;
}

.timeline-events {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.timeline-event-item {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
    width: 100%;
    margin-bottom: var(--spacing-sm);
}

.event-bubble {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    border-radius: 50%;
    background-color: var(--color-bg);
    border: 2px solid var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--color-primary);
    box-shadow: var(--shadow);
    transition: var(--transition);
    margin: 3px;
}

.event-bubble img, 
.event-bubble i {
    max-width: 60%;
    max-height: 60%;
    object-fit: contain;
}

.event-content {
    flex-grow: 1;
}

.event-content h4 {
    margin-bottom: 0.5rem;
    color: var(--color-primary);
}

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

.timeline-content-container h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.timeline-data {
    display: none;
}

/* ===== PROJECTS SECTION ===== */
.projects-section {
    padding: var(--spacing-md) 0;
    background-color: var(--color-bg);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(480px, 1fr));
    gap: var(--spacing-md);
}

.project-card {
    background-color: var(--color-bg-alt);
    border-radius: var(--border-radius);
    overflow: hidden;
    position: relative;
    box-shadow: var(--shadow);
    height: auto;
    aspect-ratio: 16 / 9;
    transition: var(--transition);
}

.project-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-bg-alt);
    transition: var(--transition);
    z-index: 1;
}

.project-image i {
    font-size: 4rem;
    color: var(--color-primary);
    opacity: 0.8;
}

.project-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 2;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--color-primary) var(--color-bg-alt);
}

.project-card:hover .project-content {
    opacity: 1;
    visibility: visible;
}

.project-content::-webkit-scrollbar {
    width: 6px;
}

.project-content::-webkit-scrollbar-track {
    background: var(--color-bg-alt);
}

.project-content::-webkit-scrollbar-thumb {
    background-color: var(--color-primary);
    border-radius: 3px;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
}

.project-card:hover .project-image {
    opacity: 0.1;
}

.project-card:hover .project-content {
    opacity: 1;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: var(--spacing-sm);
}

.project-tags span {
    font-size: 0.8rem;
    background-color: var(--color-bg);
    color: var(--color-primary);
    padding: 4px 10px;
    border-radius: 4px;
}

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

/* ===== FOOTER ===== */
body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

footer {
    background-color: var(--color-bg);
    color: var(--color-text);
    padding: var(--spacing-sm) 0;
    text-align: center;
    margin-top: auto;
}

.footer-bottom {
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* ===== RESPONSIVE STYLES ===== */
@media (max-width: 992px) {
    .profile-container {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }

    .profile-image {
        margin-right: 0;
        margin-bottom: var(--spacing-md);
    }

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

    .projects-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    .about-content {
        text-align: center;
    }

    .timeline-container {
        overflow-x: hidden;
        padding-bottom: var(--spacing-sm);
    }

    .timeline-scroll-area {
        width: 100%;
        overflow-x: auto;
    }

    .timeline-event-points {
        flex-wrap: nowrap;
        justify-content: space-between;
        min-width: 100%;
        padding: 0 var(--spacing-xs);
        gap: 0;
    }

    .timeline-year-column {
        margin: 0;
        text-align: center;
        flex-shrink: 0;
        width: auto;
        padding: 2px;
        flex: 1;
    }

    .event-bubble {
        width: 28px;
        height: 28px;
        font-size: 0.9rem;
        margin: 2px;
    }

    .event-year {
        font-size: 0.9rem;
    }

    .timeline-track {
        display: block;
    }

    .timeline-content-area {
        width: 100%;
        padding: 0 var(--spacing-sm);
    }

    .timeline-content-container {
        max-width: 100%;
    }

    .event-content {
        max-width: 100%;
    }

    .event-content img {
        max-width: 100%;
        height: auto;
    }

    .project-card {
        aspect-ratio: 16/9;
    }

    .project-content {
        font-size: 0.9rem;
        padding: var(--spacing-sm);
    }

    .tab-button {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.9rem;
    }
}

@media (max-width: 576px) {
    .timeline-year-column {
        flex-basis: 45%;
    }

    .about-section {
        padding-top: var(--spacing-sm);
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    h3 {
        font-size: 1.25rem;
    }

    .profile-image, .profile-image img {
        width: 120px;
        height: 120px;
    }

    .container {
        width: 95%;
        padding: var(--spacing-xs) 0;
    }
}

/* Animation Classes for JS */
.will-appear {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.appear {
    opacity: 1;
    transform: translateY(0);
}

/* ===== TABS ===== */
.tab-nav {
    position: sticky;
    top: 0;
    background-color: var(--color-bg);
    padding: var(--spacing-sm) 0;
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    z-index: 1000;
    border-bottom: 1px solid var(--color-border);
}

.tab-button {
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text-muted);
    background: transparent;
    font-weight: 600;
    transition: var(--transition);
    position: relative;
}

.tab-button:hover {
    color: var(--color-primary);
}

.tab-button.active {
    color: var(--color-primary);
}

.tab-button.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-primary);
}

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

.project-image .text-overlay {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    font-family: var(--font-secondary);
    font-size: 2.5rem;
    text-align: center;
    padding: 20px;
    background-color: rgba(0, 0, 0, 0.6);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}