/* ==========================================================================
   Variables & Theme Configuration
   ========================================================================== */
:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --text-color: #1f2937;
    --bg-color: #ffffff;
    --section-bg: #f3f4f6;
    --card-bg: #ffffff;
    --border-color: #e5e7eb;
    --shadow-color: rgba(0, 0, 0, 0.1);
}

.dark-mode {
    --primary-color: #3b82f6;
    --secondary-color: #60a5fa;
    --text-color: #f3f4f6;
    --bg-color: #111827;
    --section-bg: #1f2937;
    --card-bg: #1f2937;
    --border-color: #374151;
    --shadow-color: rgba(0, 0, 0, 0.3);
}

/* ==========================================================================
   Base Styles & Reset
   ========================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    height: 100%;
    scroll-snap-type: y mandatory;
    overflow-y: scroll;
    -webkit-overflow-scrolling: touch;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Poppins', sans-serif;
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.6;
    position: relative;
    overflow-x: hidden;
    min-height: 100vh;
    overscroll-behavior-y: contain;
}

/* ==========================================================================
   Theme Transition Animation
   ========================================================================== */
.theme-transition {
    position: fixed;
    top: 0;
    right: 0;
    width: 100vw;
    height: 100vh;
    background: var(--bg-color);
    z-index: 9999;
    transform-origin: top right;
    animation: themeTransition 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    pointer-events: none;
}

@keyframes themeTransition {
    0% {
        transform: scale(0);
        opacity: 1;
    }
    100% {
        transform: scale(2);
        opacity: 0;
    }
}

/* ==========================================================================
   Navigation & Header
   ========================================================================== */
.navbar {
    background-color: var(--bg-color);
    box-shadow: 0 2px 4px var(--shadow-color);
    padding: 0.75rem 0;
    position: fixed;
    width: 100%;
    z-index: 1030;
    height: 70px;
}

.navbar-brand {
    font-weight: 700;
    color: var(--text-color);
    font-size: 1.5rem;
}

.nav-link {
    color: var(--text-color);
    font-weight: 500;
    margin: 0 0.5rem;
    transition: color 0.3s ease;
}

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

#theme-toggle {
    border: none;
    background: none;
    color: var(--text-color);
    cursor: pointer;
    padding: 0.5rem;
    transition: color 0.4s ease;
}

#theme-toggle:hover {
    color: var(--primary-color);
}

/* Resume Download Button Styles */
.btn-download {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    transition: all 0.3s ease;
}

.btn-download i {
    margin-right: 0.5rem;
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px var(--shadow-color);
}

/* Responsive adjustments for download button */
@media (max-width: 768px) {
    .navbar .btn-download {
        margin-top: 0.5rem;
        width: 100%;
        justify-content: center;
    }
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
    padding: 4rem 0 2rem;
    background-color: var(--bg-color);
    scroll-snap-align: start;
    scroll-snap-stop: always;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
}

.hero-section h1,
.hero-section h2,
.hero-section p,
.hero-section .hero-buttons {
    opacity: 1;
    transform: translateY(0);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1rem;
}

.hero-image img {
    width: 400px;
    height: 400px;
    object-fit: cover;
    border-radius: 50%;
    box-shadow: 0 4px 20px var(--shadow-color);
    border: 4px solid var(--primary-color);
    transition: transform 0.3s ease;
}

.hero-image img:hover {
    transform: scale(1.02);
}

@media (max-width: 768px) {
    .hero-section {
        padding: 4rem 0 2rem;
    }

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

    .hero-image img {
        width: 250px;
        height: 250px;
    }
}

/* Hero Section Enhancements */
.hero-content {
    position: relative;
    z-index: 2;
}

.hero-subtitle {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.experience-badge {
    background: rgba(var(--primary-rgb), 0.1);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.hero-description {
    margin-bottom: 2rem;
}

.hero-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1.5rem;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    background: var(--card-bg);
    transition: all 0.3s ease;
    position: relative;
    cursor: pointer;
}

.highlight-item i {
    font-size: 1.25rem;
    color: var(--primary-color);
    transition: transform 0.5s ease;
}

.highlight-item span {
    font-size: 0.9rem;
    color: var(--text-color);
    font-weight: 500;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.graduation-date {
    font-size: 0.8rem;
    color: var(--primary-color);
    opacity: 0.9;
}

.hero-stats {
    position: absolute;
    right: -20px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    z-index: 2;
}

.stat-card {
    background: var(--card-bg);
    padding: 1rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    gap: 1rem;
    width: 280px;
    transform: translateX(0);
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateX(-10px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.stat-icon {
    width: 40px;
    height: 40px;
    background: rgba(var(--primary-rgb), 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon i {
    color: var(--primary-color);
    font-size: 1.25rem;
}

.stat-content h3 {
    font-size: 1rem;
    margin: 0;
    color: var(--text-color);
}

.stat-content p {
    font-size: 0.85rem;
    margin: 0;
    color: var(--text-secondary);
}

@media (max-width: 991px) {
    .hero-stats {
        position: static;
        transform: none;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        margin-top: 2rem;
    }

    .stat-card {
        width: calc(50% - 1rem);
    }
}

@media (max-width: 768px) {
    .hero-subtitle {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .hero-highlights {
        flex-direction: column;
    }

    .stat-card {
        width: 100%;
    }

    .highlight-item {
        width: 100%;
    }
}

/* ==========================================================================
   Common Section Styles
   ========================================================================== */
.section {
    padding: 0.5rem 0 1rem;
    background-color: var(--section-bg);
    scroll-snap-align: start;
    scroll-snap-stop: normal;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    position: relative;
}

.section-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-align: center;
    color: var(--text-color);
    position: relative;
    padding: 0.75rem 0;
    z-index: 10;
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about-details {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px var(--shadow-color);
}

.detail-item {
    margin-bottom: 1.5rem;
}

.detail-item h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.about-content {
    padding: 1rem;
}

.journey-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 1rem;
    position: relative;
    box-shadow: 0 2px 4px var(--shadow-color);
    margin-bottom: 0.75rem;
}

.journey-timeline {
    position: relative;
    padding: 10px 0;
    margin: 1rem auto;
    max-width: 800px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.story-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 1rem;
    position: relative;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(var(--primary-rgb), 0.1);
    width: 80%;
    margin: 0;
    z-index: 1;
}

.story-card:nth-child(odd) {
    margin-left: auto;
}

.story-card:nth-child(even) {
    margin-right: auto;
}

.story-icon {
    width: 35px;
    height: 35px;
    background: rgba(var(--primary-rgb), 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.75rem;
    transition: all 0.3s ease;
}

.story-icon i {
    font-size: 1rem;
    color: var(--primary-color);
}

.story-content h4 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.story-description {
    font-size: 0.9rem;
    margin: 0;
    line-height: 1.4;
}

/* ==========================================================================
   Experience & Timeline Section
   ========================================================================== */
.timeline {
    position: relative;
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
    padding: 1rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    height: 100%;
    width: 2px;
    background: var(--primary-color);
    transform: translateX(-50%);
}

.year-marker {
    position: relative;
    text-align: center;
    margin: 1rem 0;
    color: var(--primary-color);
    font-weight: 700;
    font-size: 1.25rem;
    z-index: 1;
    padding: 0 1rem;
}

.year-marker-left {
    margin-right: auto;
    margin-left: 0;
    text-align: left;
}

.year-marker-right {
    margin-left: auto;
    margin-right: 0;
    text-align: right;
}

.timeline-content {
    width: calc(50% - 30px);
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 4px 6px var(--shadow-color);
    position: relative;
    transition: transform 0.3s ease;
}

.timeline-content:hover {
    transform: translateY(-5px);
}

.timeline-item.education .timeline-content {
    margin-right: auto;
}

.timeline-item.work .timeline-content {
    margin-left: auto;
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 20px;
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
}

.timeline-item.education .timeline-content::before {
    right: -40px;
}

.timeline-item.work .timeline-content::before {
    left: -40px;
}

.timeline-item {
    position: relative;
    width: 100%;
    margin-top: calc((var(--year) - 2014) * 30px);
}

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

.timeline-date {
    position: absolute;
    left: 50%;
    top: 0;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 600;
    z-index: 1;
}

.timeline-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.timeline-header i {
    font-size: 1rem;
    color: var(--text-secondary);
    transition: transform 0.3s ease;
}

.timeline-header[aria-expanded="true"] i {
    transform: rotate(45deg);
}

.timeline-title-group {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.institution-logo {
    width: 48px;
    height: 48px;
    position: relative;
    border-radius: 8px;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
    transition: all 0.3s ease;
    overflow: hidden;
}

.institution-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 4px;
    border-radius: 8px;
}

.institution-logo i {
    font-size: 24px;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.oracle-icon {
    color: #f80000 !important;
    font-size: 28px !important;
}

.addgene-icon {
    color: #2ecc71 !important;
    font-size: 26px !important;
}

.vit-icon {
    color: #4a90e2 !important;
    font-size: 26px !important;
}

.northeastern-icon {
    color: #c41230 !important;
    font-size: 26px !important;
}

.institution-logo::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: all 0.5s ease;
}

.timeline-header:hover .institution-logo::before {
    left: 100%;
}

.timeline-header:hover .institution-logo {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.timeline-header:hover .institution-logo i {
    transform: scale(1.1);
}

@media (max-width: 768px) {
    .institution-logo {
        width: 40px;
        height: 40px;
    }
    
    .institution-logo i {
        font-size: 20px;
    }
    
    .oracle-icon {
        font-size: 24px !important;
    }
    
    .addgene-icon {
        font-size: 22px !important;
    }
    
    .vit-icon {
        font-size: 22px !important;
    }
    
    .northeastern-icon {
        font-size: 22px !important;
    }
}

@media (max-width: 576px) {
    .institution-logo {
        width: 36px;
        height: 36px;
    }
    
    .institution-logo i {
        font-size: 18px;
    }
    
    .oracle-icon {
        font-size: 22px !important;
    }
    
    .addgene-icon {
        font-size: 20px !important;
    }
    
    .vit-icon {
        font-size: 20px !important;
    }
    
    .northeastern-icon {
        font-size: 20px !important;
    }
}

.logo-text {
    color: white;
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

.logo-text.oracle-logo {
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    color: #f80000;
    font-weight: 700;
    text-shadow: none;
    background: white;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
}

.institution-logo::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, var(--border-color), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
    pointer-events: none;
}

.timeline-header:hover .institution-logo::before {
    transform: translateX(100%);
}

.timeline-header:hover .institution-logo {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.2);
}

.timeline-title-content {
    display: flex;
    flex-direction: column;
}

.timeline-role {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.timeline-institution {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .institution-logo {
        width: 40px;
        height: 40px;
    }
    
    .logo-text {
        font-size: 1rem;
    }
    
    .logo-text.oracle-logo {
        font-size: 0.9rem;
    }
}

@media (max-width: 576px) {
    .institution-logo {
        width: 36px;
        height: 36px;
    }
    
    .logo-text {
        font-size: 0.9rem;
    }
    
    .logo-text.oracle-logo {
        font-size: 0.8rem;
    }
}

.timeline-details {
    padding: 1.5rem;
    max-height: 80vh;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) var(--section-bg);
}

/* Styling for Webkit browsers (Chrome, Safari, etc.) */
.timeline-details::-webkit-scrollbar {
    width: 6px;
}

.timeline-details::-webkit-scrollbar-track {
    background: var(--section-bg);
    border-radius: 3px;
}

.timeline-details::-webkit-scrollbar-thumb {
    background-color: var(--primary-color);
    border-radius: 3px;
    transition: background-color 0.3s ease;
}

.timeline-details::-webkit-scrollbar-thumb:hover {
    background-color: var(--secondary-color);
}

.role-highlights, .academic-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.highlight-tag {
    background: var(--primary-color);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    opacity: 0.9;
    transition: opacity 0.3s ease;
}

.highlight-tag:hover {
    opacity: 1;
}

.timeline-details h5 {
    color: var(--text-color);
    font-size: 1rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
}

.timeline-details h5 i {
    color: var(--primary-color);
}

.tech-stack {
    margin-top: 1.5rem;
}

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

.tech-tag {
    background: var(--section-bg);
    color: var(--text-color);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-size: 0.85rem;
    border: 1px solid var(--border-color);
}

.key-achievements, .technical-contributions, .specialization {
    margin-bottom: 1.5rem;
}

.timeline-details ul {
    margin-bottom: 0;
    padding-left: 1.2rem;
}

.timeline-details li {
    margin-bottom: 0.5rem;
    line-height: 1.5;
    color: var(--text-color);
}

.timeline-item.parallel {
    margin-top: -2rem;
}

.timeline-item.parallel .timeline-content {
    margin-top: 2rem;
}

.timeline-item.parallel::before {
    content: '';
    position: absolute;
    left: 50%;
    top: -2rem;
    bottom: 0;
    width: 2px;
    background: var(--primary-color);
    transform: translateX(-50%);
}

/* Mobile Responsive Adjustments */
@media (max-width: 768px) {
    .timeline-content {
        width: calc(100% - 60px);
        margin-left: 60px !important;
    }

    .timeline-details {
        padding: 1rem;
        max-height: 70vh;
    }

    .timeline::before {
        left: 30px;
    }
}

@media (max-width: 576px) {
    .timeline-content {
        width: calc(100% - 50px);
        margin-left: 50px !important;
    }

    .timeline-details {
        max-height: 60vh;
        padding: 0.75rem;
    }
}

/* ==========================================================================
   Skills Section
   ========================================================================== */
.skill-category {
    background-color: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 6px var(--shadow-color);
}

.skill-category h3 {
    margin-bottom: 1.5rem;
    color: var(--text-color);
    font-size: 1.25rem;
    text-align: center;
}

.skill-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
    gap: 1.5rem;
    justify-items: center;
}

.skill-item {
    position: relative;
    width: 60px;
    height: 60px;
    margin: 0;
    cursor: pointer;
    transition: all 0.3s ease;
}

.skill-item:hover {
    transform: translateY(-5px);
}

.skill-icon {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--section-bg);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.skill-icon i {
    font-size: 2rem;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

.skill-name {
    position: absolute;
    bottom: -25px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-color);
    white-space: nowrap;
    opacity: 0.8;
}

@media (max-width: 768px) {
    .section {
        height: auto;
        min-height: 100vh;
    }

    .section-title {
        font-size: 1.75rem;
        margin-bottom: 1.5rem;
        position: relative;
    }

    .skill-category {
        padding: 1rem;
        margin-bottom: 1rem;
    }

    .skill-category h3 {
        font-size: 1.1rem;
        margin-bottom: 1rem;
    }

    .skill-items {
        grid-template-columns: repeat(auto-fit, minmax(70px, 1fr));
        gap: 1rem;
    }

    .skill-item {
        width: 50px;
        height: 50px;
    }

    .skill-icon i {
        font-size: 1.75rem;
    }

    .skill-name {
        font-size: 0.8rem;
        bottom: -20px;
    }
}

@media (max-width: 576px) {
    .skill-items {
        grid-template-columns: repeat(auto-fit, minmax(60px, 1fr));
        gap: 1rem;
    }

    .skill-item {
        width: 50px;
        height: 50px;
    }

    .skill-icon i {
        font-size: 1.5rem;
    }
}

/* ==========================================================================
   Projects Section
   ========================================================================== */
.projects-scroll-container {
    width: 100%;
    overflow-x: auto;
    padding: 20px 0;
    /* Show scrollbar for all browsers */
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) var(--section-bg);
}

/* Styling for Webkit browsers (Chrome, Safari, etc.) */
.projects-scroll-container::-webkit-scrollbar {
    display: block;
    height: 8px;
}

.projects-scroll-container::-webkit-scrollbar-track {
    background: var(--section-bg);
    border-radius: 4px;
}

.projects-scroll-container::-webkit-scrollbar-thumb {
    background-color: var(--primary-color);
    border-radius: 4px;
    transition: background-color 0.3s ease;
}

.projects-scroll-container::-webkit-scrollbar-thumb:hover {
    background-color: var(--secondary-color);
}

.projects-wrapper {
    display: flex;
    gap: 2rem;
    padding: 0.5rem 0.5rem 1.5rem 0.5rem; /* Added bottom padding to show scrollbar */
    /* Ensures smooth scrolling on iOS */
    -webkit-overflow-scrolling: touch;
}

.project-card {
    flex: 0 0 auto;
    width: 350px;
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.project-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

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

.project-content {
    padding: 1.5rem;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin: 0.75rem 0;
}

.project-tags span {
    background: var(--primary-color);
    color: white;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    white-space: nowrap;
    transition: all 0.3s ease;
    opacity: 0.9;
}

.project-tags span:hover {
    opacity: 1;
    transform: translateY(-2px);
}

.project-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

/* ==========================================================================
   Footer Redesign
   ========================================================================== */
.footer {
    position: relative;
    background: var(--bg-color);
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 1.5rem;
}

.footer-brand {
    text-align: center;
}

.brand-signature {
    display: inline-flex;
    align-items: baseline;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.brand-signature:hover {
    opacity: 1;
}

.signature-letter {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-color);
    line-height: 1;
    transition: transform 0.3s ease;
}

.signature-dot {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-left: 0.1em;
}

.footer-bottom {
    text-align: center;
    padding-top: 1rem;
}

.footer-bottom p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-color);
    opacity: 0.7;
}

@media (max-width: 768px) {
    .footer {
        padding: 1.5rem 0;
    }

    .signature-letter,
    .signature-dot {
        font-size: 1.75rem;
    }
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 768px) {
    .section {
        padding: 3rem 0;
    }

    .section-title {
        font-size: 2rem;
    }

    .hero-section {
        padding: 6rem 0 3rem;
    }

    .hero-section h1 {
        font-size: 2.5rem;
    }

    .hero-image img {
        width: 300px;
        height: 300px;
    }

    .timeline::before {
        left: 30px;
    }

    .timeline-item {
        margin-left: 60px;
        margin-top: calc((var(--year) - 2014) * 40px);
    }

    .timeline-date {
        left: 30px;
    }

    .timeline-content {
        width: 100%;
        margin-left: 0 !important;
        padding: 1rem;
    }

    .timeline-content::before {
        left: -40px !important;
    }

    .year-marker {
        margin-left: 60px;
        text-align: left;
        padding-left: 0;
    }

    .year-marker::before {
        left: -30px;
        width: 30px;
    }

    .year-marker::after {
        left: -30px;
    }

    .year-marker-left,
    .year-marker-right {
        margin-left: 60px;
        text-align: left;
    }

    .year-marker-left::before,
    .year-marker-right::before {
        left: -30px;
        width: 30px;
    }

    .year-marker-left::after,
    .year-marker-right::after {
        left: -30px;
    }

    .timeline-item.parallel {
        margin-top: 0;
    }

    .timeline-item.parallel .timeline-content {
        margin-top: 1rem;
    }

    .timeline-item.parallel::before {
        display: none;
    }

    .timeline-header h3 {
        font-size: 1rem;
    }

    .timeline-details p,
    .timeline-details ul li {
        font-size: 0.9rem;
    }
}

/* ==========================================================================
   Beyond Code Section
   ========================================================================== */
.beyond-code-grid {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: 1rem;
    margin-top: 2rem;
}

.beyond-code-left {
    flex: 2;
}

.beyond-code-right {
    flex: 3;
}

.beyond-card {
    background-color: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 30px var(--shadow-color);
    transition: all 0.3s ease;
    height: 100%;
}

.beyond-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px var(--shadow-color);
}

.beyond-card-content {
    padding: 2rem;
}

.card-header-icon {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.card-header-icon i {
    font-size: 2rem;
    color: var(--primary-color);
    background: rgba(var(--primary-rgb), 0.1);
    padding: 1rem;
    border-radius: 12px;
}

.card-header-icon h3 {
    margin: 0;
    font-size: 1.5rem;
    color: var(--text-color);
    font-weight: 600;
}

/* Teaching & Impact Card Styles */
.impact-roles {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.role-item {
    background: var(--bg-color);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 0;
    transition: transform 0.3s ease;
    border: 1px solid var(--border-color);
}

.role-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 15px var(--shadow-color);
}

.role-header {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.role-header i {
    font-size: 1.5rem;
    color: var(--primary-color);
    background: rgba(var(--primary-rgb), 0.1);
    padding: 0.75rem;
    border-radius: 8px;
}

.role-title {
    flex: 1;
    min-width: 200px;
}

.role-title h4 {
    margin: 0;
    font-size: 1.2rem;
    color: var(--text-color);
    line-height: 1.4;
}

.role-title span {
    font-size: 0.9rem;
    color: var(--text-secondary);
    display: block;
    margin-top: 0.25rem;
}

.role-badge {
    background: var(--primary-color);
    color: white;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    white-space: nowrap;
    align-self: flex-start;
}

.role-description {
    margin: 1rem 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.role-description p {
    margin: 0;
}

.role-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-top: 1.5rem;
}

.stat-item {
    text-align: center;
    padding: 1rem;
    background: rgba(var(--primary-rgb), 0.1);
    border-radius: 8px;
    transition: transform 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-3px);
    background: rgba(var(--primary-rgb), 0.15);
}

.stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .role-header {
        flex-direction: column;
    }

    .role-badge {
        margin: 0.5rem 0 0 0;
    }

    .role-stats {
        grid-template-columns: 1fr;
    }

    .role-title {
        min-width: 100%;
    }
}

/* Certifications Card Styles */
.certs-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.cert-item {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
    padding: 1.25rem;
    background: var(--bg-color);
    border-radius: 12px;
    transition: transform 0.2s ease;
}

.cert-item:hover {
    transform: translateX(5px);
}

.cert-icon {
    background: rgba(var(--primary-rgb), 0.1);
    padding: 1rem;
    border-radius: 12px;
}

.cert-icon i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.cert-details {
    flex: 1;
}

.cert-details h4 {
    margin: 0 0 0.5rem 0;
    font-size: 1.1rem;
    color: var(--text-color);
}

.cert-details p {
    margin: 0 0 0.5rem 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.cert-date {
    font-size: 0.85rem;
    color: var(--primary-color);
    font-weight: 500;
}

/* Engineering Background Card Styles */
.engineering-showcase {
    position: relative;
    padding: 1rem 0;
}

.project-slider {
    position: relative;
    width: 100%;
    overflow: hidden;
    border-radius: 12px;
}

.project-slides {
    display: flex;
    transition: transform 0.5s ease;
    width: 300%;  /* 100% for each slide */
}

.project-slide {
    flex: 0 0 33.333%;  /* Each slide takes 1/3 of the total width */
    position: relative;
    height: 400px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px var(--shadow-color);
    transition: all 0.3s ease;
}

.project-slide:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px var(--shadow-color);
}

.project-slide-image {
    position: relative;
    width: 100%;
    height: 100%;
}

.project-slide-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-slide:hover .project-slide-image img {
    transform: scale(1.1);
}

.project-slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to top,
        rgba(0, 0, 0, 0.9) 0%,
        rgba(0, 0, 0, 0.7) 40%,
        rgba(0, 0, 0, 0.4) 100%
    );
    opacity: 0;
    transition: opacity 0.3s ease;
    display: flex;
    align-items: flex-end;
    padding: 2rem;
}

.project-slide:hover .project-slide-overlay {
    opacity: 1;
}

.project-slide-content {
    color: white;
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.3s ease;
    transition-delay: 0.1s;
    width: 100%;
}

.project-slide:hover .project-slide-content {
    transform: translateY(0);
    opacity: 1;
}

.project-slide-content h4 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: white;
    font-weight: 600;
}

.project-slide-content p {
    font-size: 1rem;
    margin-bottom: 1.5rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.9);
}

.project-slide-content a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.project-slide-content a:hover {
    color: var(--secondary-color);
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.project-tags span {
    background: var(--primary-color);
    color: white;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.project-tags span:hover {
    transform: translateY(-2px);
    background: var(--secondary-color);
}

@media (max-width: 768px) {
    .project-slide {
        height: 300px;
    }

    .project-slide-overlay {
        opacity: 1;
        background: linear-gradient(
            to top,
            rgba(0, 0, 0, 0.9) 0%,
            rgba(0, 0, 0, 0.7) 40%,
            rgba(0, 0, 0, 0.4) 100%
        );
    }

    .project-slide-content {
        transform: translateY(0);
        opacity: 1;
    }

    .project-slide-content h4 {
        font-size: 1.25rem;
    }

    .project-slide-content p {
        font-size: 0.9rem;
    }

    .project-tags span {
        padding: 0.3rem 0.8rem;
        font-size: 0.8rem;
    }
}

/* Responsive Design */
@media (max-width: 1200px) {
    .beyond-code-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .beyond-card-content {
        padding: 1.5rem;
    }

    .card-header-icon {
        margin-bottom: 1.5rem;
    }

    .card-header-icon i {
        font-size: 1.5rem;
        padding: 0.75rem;
    }

    .card-header-icon h3 {
        font-size: 1.25rem;
    }

    .showcase-item {
        flex-direction: column;
        align-items: flex-start;
        text-align: left;
    }

    .role-header {
        flex-direction: column;
    }

    .role-badge {
        margin: 0.5rem 0 0 0;
    }

    .role-stats {
        grid-template-columns: 1fr;
    }
}

.navbar-toggler {
    border-color: var(--text-color);
}

.navbar-toggler-icon {
    background-image: none;
    position: relative;
}

.navbar-toggler-icon::before {
    content: '\f0c9';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--text-color);
    font-size: 1.25rem;
}

.dark-mode .navbar-toggler {
    border-color: var(--text-color);
}

@media (max-width: 991px) {
    .navbar-collapse {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--bg-color);
        padding: 1rem;
        margin: 0;
        border-radius: 0 0 8px 8px;
        box-shadow: 0 4px 6px var(--shadow-color);
    }

    .navbar > .container {
        position: relative;
    }

    .navbar-nav {
        padding: 1rem 0;
    }

    .nav-item {
        margin: 0.5rem 0;
        text-align: center;
    }

    .nav-item:last-child {
        margin-bottom: 0;
    }

    .navbar-nav .btn {
        width: 100%;
        margin: 0.5rem 0;
    }
}

.skill-text-icon {
    font-family: monospace;
    font-weight: bold;
    font-size: 1.2rem;
    color: var(--primary-color);
}

.skill-svg-icon {
    width: 24px;
    height: 24px;
}

.skill-item {
    position: relative;
    margin: 1rem 0;
}

.skill-experience {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    width: 22px;
    height: 22px;
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.9;
}

.skill-tooltip {
    position: absolute;
    top: -75px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(var(--card-bg-rgb), 0.95);
    padding: 0.6rem 0.8rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    width: max-content;
    min-width: 150px;
    max-width: 250px;
    font-size: 0.8rem;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    z-index: 1000;
    backdrop-filter: blur(8px);
}

.skill-tooltip::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 6px solid rgba(var(--card-bg-rgb), 0.95);
}

.skill-item:hover .skill-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-5px);
}

.skill-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(90px, 1fr));
    gap: 2rem;
    justify-items: center;
    padding: 1.5rem 0;
}

.experience-tag {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 12px;
    font-size: 0.7rem;
    margin: 2px;
    background: var(--primary-color);
    color: white;
    opacity: 0.9;
    transition: opacity 0.2s ease;
}

.experience-tag:hover {
    opacity: 1;
}

.skill-tooltip strong {
    display: block;
    margin-bottom: 0.4rem;
    color: var(--primary-color);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.highlight-item {
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 4px 6px var(--shadow-color);
    transition: transform 0.3s ease;
}

.highlight-item:hover {
    transform: translateY(-5px);
}

.highlight-item i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.highlight-item h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.highlight-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0;
}

.detail-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 6px var(--shadow-color);
    display: flex;
    gap: 1.5rem;
}

.card-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-icon i {
    font-size: 1.5rem;
    color: white;
}

.card-content {
    flex: 1;
}

.card-content h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.education-item {
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.education-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.education-item h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
    color: var(--text-color);
}

.education-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.education-item .year,
.education-item .gpa {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-right: 1rem;
}

.interests-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.interest-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-color);
}

.interest-item i {
    color: var(--primary-color);
}

.about-cta {
    margin-top: 2rem;
}

@media (max-width: 768px) {
    .about-highlights {
        grid-template-columns: 1fr;
    }

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

.domain-expertise {
    margin-top: 2rem;
    position: relative;
    overflow: hidden;
}

.domain-expertise::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(var(--primary-rgb), 0.05) 0%, transparent 70%);
    z-index: 0;
    transform: rotate(-15deg);
}

.impact-list {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    position: relative;
}

.impact-list li {
    display: flex;
    align-items: flex-start;
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: 16px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(var(--primary-rgb), 0.1);
    position: relative;
    overflow: hidden;
}

.impact-list li::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary-color);
    transform: scaleY(0);
    transform-origin: bottom;
    transition: transform 0.3s ease;
}

.impact-list li:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 12px 20px rgba(var(--primary-rgb), 0.1);
    border-color: var(--primary-color);
}

.impact-list li:hover::before {
    transform: scaleY(1);
}

.impact-icon-wrapper {
    position: relative;
    margin-right: 1.25rem;
}

.impact-list i {
    color: var(--primary-color);
    font-size: 1.5rem;
    background: rgba(var(--primary-rgb), 0.1);
    padding: 1rem;
    border-radius: 12px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 1;
}

.impact-icon-wrapper::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    background: rgba(var(--primary-rgb), 0.15);
    border-radius: 12px;
    transform: translate(-50%, -50%) scale(0.8);
    opacity: 0;
    transition: all 0.3s ease;
}

.impact-list li:hover .impact-icon-wrapper::after {
    transform: translate(-50%, -50%) scale(1.2);
    opacity: 1;
}

.impact-list li:hover i {
    transform: scale(1.1);
    background: var(--primary-color);
    color: white;
}

.impact-content {
    flex: 1;
    position: relative;
}

.impact-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 0.75rem;
    position: relative;
    padding-bottom: 0.75rem;
}

.impact-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 2rem;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.impact-list li:hover .impact-title::after {
    width: 3rem;
}

.impact-description {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.achievement-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
    position: relative;
}

.achievement-item {
    text-align: center;
    padding: 2rem 1.5rem;
    background: var(--card-bg);
    border-radius: 16px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(var(--primary-rgb), 0.1);
    position: relative;
    overflow: hidden;
}

.achievement-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.achievement-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 25px rgba(var(--primary-rgb), 0.15);
    border-color: var(--primary-color);
}

.achievement-item:hover::before {
    transform: translateX(100%);
}

.achievement-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.achievement-number::after {
    content: '+';
    position: absolute;
    top: 0;
    right: -20px;
    font-size: 1.5rem;
    background: inherit;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    opacity: 0.8;
}

.achievement-label {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.4;
    position: relative;
    padding-top: 1rem;
}

.achievement-label::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 2px;
    background: var(--primary-color);
    opacity: 0.5;
}

@media (max-width: 768px) {
    .impact-list {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .achievement-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .achievement-number {
        font-size: 2rem;
    }
    
    .achievement-label {
        font-size: 0.95rem;
    }

    .impact-list li {
        padding: 1.25rem;
    }

    .impact-title {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .achievement-grid {
        grid-template-columns: 1fr;
    }
}

.journey-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 1.5rem;
    position: relative;
    box-shadow: 0 4px 6px var(--shadow-color);
    margin-bottom: 1rem;
}

.journey-icon {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 4px var(--shadow-color);
}

.journey-timeline {
    position: relative;
    padding: 15px 0;
    margin: 1.5rem auto;
    max-width: 800px;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.story-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 0.5rem;
    position: relative;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(var(--primary-rgb), 0.1);
    width: 100%;
    margin: 0;
    z-index: 1;
}

.story-card::before {
    content: '';
    position: absolute;
    width: 2px;
    background: var(--primary-color);
    height: calc(100% + 2rem);
    top: 50%;
    opacity: 0.5;
    transition: opacity 0.3s ease;
}

.story-card:nth-child(odd)::before {
    right: -1rem;
}

.story-card:nth-child(even)::before {
    left: -1rem;
}

.story-card:last-child::before {
    display: none;
}

.story-card:hover::before {
    opacity: 1;
}

.story-card::after {
    content: '';
    position: absolute;
    width: 12px;
    height: 12px;
    background: var(--primary-color);
    border-radius: 50%;
    top: 50%;
    transform: translateY(-50%);
    box-shadow: 0 0 0 4px rgba(var(--primary-rgb), 0.1);
    transition: all 0.3s ease;
}

.story-card:nth-child(odd)::after {
    right: -1.35rem;
}

.story-card:nth-child(even)::after {
    left: -1.35rem;
}

.story-card:hover::after {
    transform: translateY(-50%) scale(1.2);
    box-shadow: 0 0 0 6px rgba(var(--primary-rgb), 0.2);
}

.story-icon {
    width: 45px;
    height: 45px;
    background: rgba(var(--primary-rgb), 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    transition: all 0.4s ease;
}

.story-icon i {
    font-size: 1.25rem;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

.story-card:hover .story-icon {
    transform: scale(1.1) rotate(5deg);
    background: var(--primary-color);
}

.story-card:hover .story-icon i {
    color: white;
}

/* Domain Expertise Section Redesign */
.expertise-grid {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 0.75rem;
}

.expertise-card {
    position: relative;
    background: var(--bg-color);
    border-radius: 8px;
    padding: 0.75rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(var(--primary-rgb), 0.1);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    /* overflow: hidden; */
}

.expertise-card:hover {
    transform: translateX(8px);
    border-color: var(--primary-color);
    background: var(--card-bg);
}

.expertise-icon {
    width: 32px;
    height: 32px;
    background: rgba(var(--primary-rgb), 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

.expertise-card:hover .expertise-icon {
    background: var(--primary-color);
    transform: scale(1.1) rotate(5deg);
}

.expertise-card:hover .expertise-icon i {
    color: white;
    transform: scale(1.1);
}

.expertise-icon i {
    font-size: 1rem;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

.expertise-content h4 {
    font-size: 0.95rem;
    margin: 0;
    transition: all 0.3s ease;
}

.expertise-card:hover .expertise-content h4 {
    color: var(--primary-color);
}

.expertise-description {
    font-size: 0.85rem;
    margin: 0.25rem 0 0;
    opacity: 0.8;
    transform: translateY(0);
    transition: all 0.3s ease;
    line-height: 1.4;
}

.expertise-card:hover .expertise-description {
    opacity: 1;
    transform: translateY(2px);
}

.expertise-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 3px;
    background: var(--primary-color);
    transform: scaleY(0);
    transform-origin: bottom;
    transition: transform 0.3s ease;
}

.expertise-card:hover::before {
    transform: scaleY(1);
}

@media (max-width: 768px) {
    .expertise-card {
        padding: 0.75rem;
    }

    .expertise-icon {
        width: 28px;
        height: 28px;
    }

    .expertise-content h4 {
        font-size: 0.9rem;
    }

    .expertise-description {
        font-size: 0.8rem;
    }
}

/* Contact Section Styles */
.contact-container {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem 0;
}

.contact-card {
    background: var(--card-bg);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 600px;
    transition: transform 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-5px);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-location {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.1rem;
    color: var(--text-color);
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.contact-location i {
    color: var(--primary-color);
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem;
    border-radius: 0.5rem;
    text-decoration: none;
    color: var(--text-color);
    transition: all 0.3s ease;
}

.contact-link:hover {
    background: var(--hover-bg);
    transform: translateX(5px);
}

.contact-link i {
    font-size: 1.25rem;
    color: var(--primary-color);
    width: 24px;
    text-align: center;
}

.contact-link span {
    font-size: 0.95rem;
}

@media (max-width: 768px) {
    .contact-card {
        margin: 0 1rem;
        padding: 1.5rem;
    }
    
    .contact-link span {
        font-size: 0.85rem;
    }
}

/* Mobile-First Responsive Adjustments */
@media (max-width: 576px) {
    /* Hero Section Mobile Adjustments */
    .hero-section {
        padding: 5rem 0 2rem;
        height: auto;
        min-height: 100vh;
    }

    .hero-content {
        text-align: center;
        padding: 0 1rem;
    }

    .hero-subtitle {
        justify-content: center;
        flex-wrap: wrap;
    }

    .hero-description {
        margin-bottom: 1.5rem;
    }

    .hero-highlights {
        justify-content: center;
    }

    .highlight-item {
        width: 100%;
        justify-content: center;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    .hero-image {
        margin-top: 2rem;
    }

    .hero-image img {
        width: 200px;
        height: 200px;
    }

    /* About Section Mobile Adjustments */
    .about-content {
        padding: 0.5rem;
    }

    .journey-card {
        padding: 1rem;
        margin-bottom: 1rem;
    }

    .story-card {
        padding: 1rem;
        width: 100%;
        margin: 0 0 1rem 0;
    }

    .story-card::before,
    .story-card::after {
        display: none;
    }

    .expertise-card {
        flex-direction: row;
        align-items: center;
        padding: 0.75rem;
    }

    /* Skills Section Mobile Adjustments */
    .skill-category {
        padding: 1rem;
        margin-bottom: 1rem;
    }

    .skill-items {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
        padding: 0.5rem;
    }

    .skill-item {
        width: 100%;
    }

    .skill-icon {
        width: 40px;
        height: 40px;
    }

    .skill-name {
        font-size: 0.75rem;
    }

    /* Projects Section Mobile Adjustments */
    .project-card {
        width: 280px;
    }

    .project-image {
        height: 160px;
    }

    .project-content {
        padding: 1rem;
    }

    .project-tags {
        gap: 0.4rem;
        margin: 0.75rem 0;
    }

    .project-tags span {
        padding: 0.35rem 0.7rem;
        font-size: 0.75rem;
    }

    /* Beyond Code Section Mobile Adjustments */
    .beyond-code-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .beyond-card {
        margin-bottom: 1rem;
    }

    .role-item {
        padding: 1rem;
    }

    .role-stats {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    /* Contact Section Mobile Adjustments */
    .contact-card {
        margin: 0 0.5rem;
        padding: 1rem;
    }

    .contact-link {
        padding: 0.5rem;
    }

    .contact-link span {
        font-size: 0.8rem;
    }

    /* Navigation Mobile Adjustments */
    .navbar {
        padding: 0.5rem 0;
    }

    .navbar-brand {
        font-size: 1.25rem;
    }

    .navbar-toggler {
        padding: 0.4rem;
    }

    .navbar-nav {
        background: var(--bg-color);
        padding: 1rem;
        box-shadow: 0 4px 6px var(--shadow-color);
    }

    .nav-link {
        padding: 0.5rem 0;
        text-align: center;
    }

    /* Footer Mobile Adjustments */
    .footer {
        padding: 1.5rem 0;
    }

    .social-links {
        gap: 1.5rem;
    }

    .social-links a {
        font-size: 1.5rem;
    }
}

/* Tablet Responsive Adjustments */
@media (min-width: 577px) and (max-width: 768px) {
    .hero-section {
        height: auto;
        min-height: 100vh;
    }

    .hero-content {
        padding: 0 1rem;
    }

    .hero-image img {
        width: 250px;
        height: 250px;
    }

    .skill-items {
        grid-template-columns: repeat(4, 1fr);
    }

    .project-card {
        width: 320px;
    }
}

/* Ensure smooth scrolling on iOS */
@supports (-webkit-overflow-scrolling: touch) {
    .section {
        -webkit-overflow-scrolling: touch;
    }

    .projects-scroll-container {
        -webkit-overflow-scrolling: touch;
    }
}

/* ==========================================================================
   Scroll Hint Styles
   ========================================================================== */
.scroll-hint {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: var(--primary-color);
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0.7;
    transition: all 0.3s ease;
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    animation: bounce 2s infinite;
}

.scroll-hint:hover {
    opacity: 1;
    transform: translateX(-50%) scale(1.1);
}

.scroll-hint i {
    filter: drop-shadow(0 2px 4px var(--shadow-color));
}

.scroll-hint-up {
    bottom: 3rem;
}

.scroll-hint-text {
    font-size: 0.9rem;
    font-weight: 500;
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s ease;
}

.scroll-hint-up:hover .scroll-hint-text {
    opacity: 1;
    transform: translateY(0);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* Mobile adjustments for scroll hint */
@media (max-width: 768px) {
    .scroll-hint {
        bottom: 1.5rem;
        font-size: 1.25rem;
    }

    .scroll-hint-up {
        bottom: 2rem;
    }

    .scroll-hint-text {
        font-size: 0.8rem;
    }
}

.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    z-index: 10;
    opacity: 0.8;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slider-arrow:hover {
    opacity: 1;
    transform: translateY(-50%) scale(1.1);
}

.slider-prev {
    left: 1rem;
}

.slider-next {
    right: 1rem;
}

.slider-dots {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.5rem;
    z-index: 10;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    border: none;
    padding: 0;
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot.active {
    background: var(--primary-color);
    transform: scale(1.2);
}

@media (max-width: 991px) {
    .hero-section .row {
        flex-direction: column;
    }
    
    .hero-section .col-lg-6:last-child {
        order: -1;
        margin-bottom: 2rem;
    }
    
    .hero-section .col-lg-6:first-child {
        order: 2;
    }
}