/* ===== RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Dark Theme Colors */
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #2a2a2a;
    --text-primary: #ffffff;
    --text-secondary: #b8b8b8;
    --text-muted: #808080;
    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);

    /* Browser compatibility */
    --webkit-font-smoothing: antialiased;
    --moz-osx-font-smoothing: grayscale;
    --border-color: #1a1a1a;
    --shadow-light: rgba(99, 102, 241, 0.1);
    --shadow-medium: rgba(99, 102, 241, 0.2);
    --shadow-heavy: rgba(0, 0, 0, 0.5);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    
    /* Transitions */
    --transition-fast: all 0.2s ease;
    --transition-medium: all 0.3s ease;
    --transition-slow: all 0.5s ease;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* ===== ANIMATED BACKGROUND ===== */
.animated-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
    background: radial-gradient(ellipse at center, #1a1a2e 0%, #0a0a0a 100%);
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--accent-primary);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
    opacity: 0.4;
}

.particle:nth-child(1) {
    top: 20%;
    left: 20%;
    animation-delay: 0s;
    animation-duration: 6s;
}

.particle:nth-child(2) {
    top: 60%;
    left: 80%;
    animation-delay: -2s;
    animation-duration: 8s;
}

.particle:nth-child(3) {
    top: 40%;
    left: 40%;
    animation-delay: -1s;
    animation-duration: 7s;
}

.particle:nth-child(4) {
    top: 80%;
    left: 10%;
    animation-delay: -3s;
    animation-duration: 9s;
}

.particle:nth-child(5) {
    top: 10%;
    left: 70%;
    animation-delay: -1.5s;
    animation-duration: 5s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
        opacity: 0.4;
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
        opacity: 0.8;
    }
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition-medium);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.logo h2 {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    -moz-background-clip: text;
    -moz-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gradient);
    transition: var(--transition-fast);
}

.nav-link:hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: var(--transition-fast);
}

/* ===== COLOR PICKER ===== */
.color-picker-nav {
    position: relative;
}

.color-picker-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition-fast);
    font-size: 0.95rem;
}

.color-picker-btn:hover {
    color: var(--text-primary);
    border-color: var(--accent-primary);
    background: rgba(99, 102, 241, 0.1);
}

.color-picker-btn i {
    font-size: 1.1rem;
}

.color-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.5rem;
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition-medium);
    z-index: 1000;
    box-shadow: 0 10px 30px var(--shadow-heavy);
}

.color-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.color-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-fast);
    margin-bottom: 0.25rem;
}

.color-option:last-child {
    margin-bottom: 0;
}

.color-option:hover {
    background: var(--bg-tertiary);
    transform: translateX(5px);
}

.color-option.active {
    background: var(--bg-tertiary);
    border: 2px solid var(--accent-primary);
}

.color-preview {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    flex-shrink: 0;
}

.color-option span {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
}

.color-option:hover span,
.color-option.active span {
    color: var(--text-primary);
}

/* ===== HERO SECTION ===== */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 0 var(--spacing-md);
    overflow: hidden;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.text-gradient {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    -moz-background-clip: text;
    -moz-text-fill-color: transparent;
    background-clip: text;
}

.hero-name {
    display: block;
    margin-top: var(--spacing-xs);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 32px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-medium);
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 150px;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px var(--shadow-medium);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--accent-primary);
}

.btn-secondary:hover {
    background: var(--accent-primary);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px var(--shadow-medium);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border: 2px solid var(--accent-primary);
    border-top: none;
    border-right: none;
    transform: rotate(-45deg);
}

/* ===== CV PREVIEW SECTION ===== */
.hero-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
    min-height: 100vh;
    gap: var(--spacing-xl);
}

.hero-content {
    flex: 0 0 auto;
    max-width: 500px;
    text-align: center;
    animation: fadeInUp 1s ease;
    margin-left: auto;
    margin-right: 0;
}

.hero-content > div {
    max-width: 500px;
    width: 100%;
}

.cv-preview-section {
    flex: 0 0 35%;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding-left: var(--spacing-lg);
}

.cv-card {
    background: var(--bg-secondary);
    padding: var(--spacing-sm);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition-medium);
    border: 2px solid var(--border-color);
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 30px var(--shadow-light);
}

.cv-card::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--accent-gradient);
    border-radius: var(--radius-lg);
    z-index: -1;
    opacity: 0;
    transition: var(--transition-medium);
}

.cv-card:hover::before {
    opacity: 1;
    animation: ledGlow 2s ease-in-out infinite;
}

.cv-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px var(--shadow-medium);
}

.cv-preview {
    position: relative;
    width: 320px;
    height: 400px;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: white;
    display: flex;
    align-items: flex-start;
    justify-content: center;
}

.cv-iframe {
    width: 100%;
    height: 100%;
    border: none;
    pointer-events: none;
    transform: scale(1);
    transform-origin: top center;
}

.cv-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-medium);
    color: white;
    font-size: 2rem;
}

.cv-card:hover .cv-overlay {
    opacity: 1;
}

.cv-label {
    text-align: center;
    margin-top: var(--spacing-sm);
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

/* ===== CV MODAL ===== */
.cv-modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(5px);
    opacity: 1;
    transition: opacity 0.2s ease;
}

.cv-modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.cv-modal-content {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 800px;
    height: 90vh;
    display: flex;
    flex-direction: column;
    border: 2px solid var(--border-color);
    overflow: hidden;
    transform: scale(1);
    transition: transform 0.2s ease;
}

.cv-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-tertiary);
}

.cv-modal-header h3 {
    color: var(--text-primary);
    margin: 0;
}

.cv-modal-controls {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.cv-close {
    background: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-secondary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.cv-close:hover {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

.cv-modal-body {
    flex: 1;
    padding: var(--spacing-sm);
    background: white;
    margin: var(--spacing-sm);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.cv-modal-iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* ===== CV ANIMATIONS ===== */
@keyframes ledGlow {
    0%, 100% {
        box-shadow: 0 0 20px var(--accent-primary);
    }
    50% {
        box-shadow: 0 0 30px var(--accent-primary), 0 0 40px var(--accent-secondary);
    }
}

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

/* ===== SECTIONS ===== */
section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    -moz-background-clip: text;
    -moz-text-fill-color: transparent;
    background-clip: text;
}

/* ===== ABOUT SECTION ===== */
.about {
    background: var(--bg-secondary);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.stat {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    transition: var(--transition-medium);
}

.stat:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px var(--shadow-light);
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    -moz-background-clip: text;
    -moz-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--text-secondary);
    font-weight: 500;
}

/* ===== SKILLS SECTION ===== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.skill-card {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition-medium);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.1), transparent);
    transition: var(--transition-slow);
}

.skill-card:hover::before {
    left: 100%;
}

.skill-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px var(--shadow-light);
    border-color: var(--accent-primary);
}

.skill-icon {
    font-size: 3rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    -moz-background-clip: text;
    -moz-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.skill-card h3 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.25rem;
}

.skill-card p {
    color: var(--text-secondary);
}

/* ===== PROJECTS SECTION ===== */
.projects {
    background: var(--bg-secondary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.project-card {
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-medium);
    border: 1px solid var(--border-color);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px var(--shadow-medium);
}

.project-image {
    height: 200px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-icon {
    font-size: 5rem;
    color: rgba(255, 255, 255, 0.9);
    z-index: 1;
    transition: var(--transition-medium);
}

.project-card:hover .project-icon {
    transform: scale(1.1);
    color: rgba(255, 255, 255, 1);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-medium);
}

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

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

.project-link {
    width: 50px;
    height: 50px;
    background: var(--accent-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    text-decoration: none;
    transition: var(--transition-fast);
}

.project-link:hover {
    background: var(--accent-secondary);
    transform: scale(1.1);
}

.project-info {
    padding: var(--spacing-md);
}

.project-info h3 {
    margin-bottom: var(--spacing-xs);
    font-size: 1.25rem;
}

.project-info p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.tech-tag {
    background: var(--accent-primary);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

/* ===== CONTACT SECTION ===== */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    max-width: 1000px;
    margin: 0 auto;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: white;
    font-size: 1.25rem;
}

.contact-item h4 {
    margin-bottom: 4px;
    color: var(--text-primary);
}

.contact-item p {
    color: var(--text-secondary);
}

.contact-form {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--shadow-light);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

/* Hide GitHub logos and project link circles */
.fa-github {
    display: none !important;
}

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

/* Project image link styling */
.project-image-link {
    text-decoration: none;
    display: block;
    color: inherit;
}

.project-overlay-text {
    color: white;
    font-size: 1.5rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* ===== EXPERIENCE SECTION ===== */
.experience {
    background: var(--bg-primary);
    position: relative;
}

.timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    padding: var(--spacing-lg) 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--accent-primary), var(--accent-secondary));
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-xl);
    width: 100%;
}

.timeline-dot {
    position: absolute;
    left: 50%;
    top: 30px;
    width: 20px;
    height: 20px;
    background: var(--accent-gradient);
    border: 4px solid var(--bg-primary);
    border-radius: 50%;
    transform: translateX(-50%);
    z-index: 2;
    box-shadow: 0 0 20px var(--accent-primary);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 20px var(--accent-primary);
    }
    50% {
        box-shadow: 0 0 30px var(--accent-primary), 0 0 40px var(--accent-secondary);
    }
}

.timeline-content {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 2px solid var(--border-color);
    position: relative;
    transition: var(--transition-medium);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
}

.timeline-item-left .timeline-content {
    margin-right: 52%;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, rgba(99, 102, 241, 0.05) 100%);
}

.timeline-item-right .timeline-content {
    margin-left: 52%;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.05) 0%, var(--bg-secondary) 100%);
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px var(--shadow-medium);
    border-color: var(--accent-primary);
}

.experience-tag {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-sm);
    position: relative;
    animation: fadeInUp 0.6s ease;
}

.tag-research {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.tag-leadership {
    background: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.4);
}

.tag-safety {
    background: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4);
}

.tag-education {
    background: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.4);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-sm);
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.timeline-header h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin: 0;
}

.timeline-date {
    color: var(--accent-primary);
    font-weight: 600;
    font-size: 0.95rem;
    white-space: nowrap;
}

.timeline-content h4 {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.timeline-location {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: 6px;
}

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

.timeline-description {
    list-style: none;
    padding-left: 0;
    margin: 0;
}

.timeline-description li {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    padding-left: 1.5rem;
    position: relative;
    line-height: 1.6;
}

.timeline-description li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-weight: bold;
    font-size: 1.2rem;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
}

.footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.footer p {
    color: var(--text-secondary);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    text-decoration: none;
    transition: var(--transition-fast);
    border: 1px solid var(--border-color);
}

.social-link:hover {
    background: var(--accent-primary);
    color: white;
    transform: translateY(-2px);
}

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

@keyframes bounce {
    0%, 20%, 53%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40%, 43% {
        transform: translateX(-50%) translateY(-10px);
    }
    70% {
        transform: translateX(-50%) translateY(-5px);
    }
    90% {
        transform: translateX(-50%) translateY(-2px);
    }
}

/* ===== RESPONSIVE DESIGN ===== */
@media (min-width: 1400px) {
    .hero-container {
        max-width: 2000px;
        padding: 0 calc(var(--spacing-xl) * 1.5);
    }
    
    .cv-preview-section {
        flex: 0 0 30%;
    }
    
    .hero-content {
        flex: 0 0 65%;
    }
}

@media (max-width: 1200px) {
    .hero-container {
        max-width: 1400px;
        padding: 0 var(--spacing-lg);
    }
    
    .cv-preview-section {
        flex: 0 0 40%;
    }
    
    .hero-content {
        flex: 0 0 55%;
    }
}

@media (max-width: 1024px) {
    .hero-container {
        padding: 0 var(--spacing-md);
    }
    
    .cv-preview-section {
        flex: 0 0 45%;
        padding-left: var(--spacing-md);
    }
    
    .hero-content {
        flex: 0 0 50%;
    }
    
    .cv-preview {
        width: 280px;
        height: 350px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--bg-secondary);
        width: 100%;
        text-align: center;
        transition: var(--transition-medium);
        box-shadow: 0 10px 27px var(--shadow-heavy);
        border-radius: 0 0 var(--radius-md) var(--radius-md);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        margin: var(--spacing-sm) 0;
    }

    .hamburger {
        display: flex;
    }

    /* Color picker mobile styles */
    .color-picker-nav {
        width: 100%;
        display: flex;
        justify-content: center;
        padding: var(--spacing-sm) 0;
    }

    .color-picker-btn {
        width: 80%;
        justify-content: center;
    }

    .color-dropdown {
        left: 50%;
        right: auto;
        transform: translateX(-50%) translateY(-10px);
        width: 80%;
    }

    .color-dropdown.active {
        transform: translateX(-50%) translateY(0);
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(6px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-6px) rotate(-45deg);
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .hero-container {
        flex-direction: column;
        justify-content: center;
        text-align: center;
        gap: var(--spacing-lg);
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .hero-content {
        flex: none;
        width: 100%;
    }

    .cv-preview-section {
        flex: none;
        order: -1;
        width: 100%;
        display: flex;
        justify-content: center;
        align-items: center;
        padding-left: 0;
    }

    .cv-preview {
        width: 280px;
        height: 350px;
    }

    .cv-modal-content {
        width: 95%;
        height: 95vh;
    }

    .cv-modal-header {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }

    .cv-modal-controls {
        justify-content: center;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

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

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

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

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

    .hero-title {
        font-size: 2.5rem;
    }

    /* Timeline responsive */
    .timeline::before {
        left: 20px;
    }

    .timeline-dot {
        left: 20px;
    }

    .timeline-item-left .timeline-content,
    .timeline-item-right .timeline-content {
        margin-left: 60px;
        margin-right: 0;
        background: var(--bg-secondary);
    }

    .timeline-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .timeline-date {
        order: -1;
        margin-bottom: var(--spacing-xs);
    }
}