@import url("fontawesome-all.min.css");

/* Modern CSS Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* CSS Variables */
:root {
    /* Colors */
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --secondary-color: #64748b;
    --accent-color: #06b6d4;
    --success-color: #10b981;
    --background-dark: #0f172a;
    --background-light: #f8fafc;
    --surface-dark: #1e293b;
    --surface-light: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    --border-color: #e2e8f0;
    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
    --gradient-secondary: linear-gradient(135deg, #64748b 0%, #475569 100%);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', Monaco, 'Cascadia Code', monospace;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Animations */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
}

/* Base Styles */
html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
}

h2 {
    font-size: 2rem;
    font-weight: 600;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

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

a:hover {
    color: var(--primary-dark);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Header Styles */
#header {
    position: fixed;
    top: 0;
    left: 0;
    width: 350px;
    height: 100vh;
    background: var(--background-dark);
    color: white;
    overflow-y: auto;
    z-index: 1000;
    box-shadow: var(--shadow-xl);
}

.header-content {
    padding: var(--spacing-lg) var(--spacing-lg);
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    gap: var(--spacing-md);
}

.profile-section {
    text-align: center;
}

.profile-image {
    position: relative;
    display: inline-block;
    margin-bottom: var(--spacing-md);
}

.profile-image img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.status-indicator {
    position: absolute;
    bottom: 6px;
    right: 6px;
    width: 20px;
    height: 20px;
    background: var(--success-color);
    border-radius: 50%;
    border: 2px solid var(--background-dark);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    }
    70% {
        transform: scale(1);
        box-shadow: 0 0 0 10px rgba(16, 185, 129, 0);
    }
    100% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
    }
}

.profile-info .name {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.profile-info .title {
    font-size: 1rem;
    color: var(--accent-color);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
}

.profile-info .location {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
}

.profile-info .location i {
    margin-right: var(--spacing-xs);
    color: var(--primary-color);
}

.view-counter {
    font-size: 0.875rem;
    color: var(--text-light);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

.social-links-inline {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.social-link-inline {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--surface-dark);
    color: var(--text-light);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    border: 1px solid transparent;
}

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

/* Navigation */
#nav {
    margin: 0;
}

#nav ul {
    list-style: none;
    padding-bottom: var(--spacing-md);
}

#nav li {
    margin-bottom: var(--spacing-xs);
}

.nav-link {
    display: block;
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--text-light);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    font-weight: 500;
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    transition: left var(--transition-normal);
    z-index: -1;
}

.nav-link:hover,
.nav-link.active {
    color: white;
    transform: translateX(8px);
}

.nav-link:hover::before,
.nav-link.active::before {
    left: 0;
}

/* Social Links */
.social-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--surface-dark);
    color: var(--text-light);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    border: 1px solid transparent;
}

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

/* Main Content */
#main {
    margin-left: 350px;
    min-height: 100vh;
}

.section {
    padding: var(--spacing-3xl) 0;
    position: relative;
}

.section:nth-child(even) {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* About Section */
.about-content {
    display: block;
    max-width: 800px;
    margin: 0 auto;
}

.about-text p {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
}

.highlight-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.stat {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--surface-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: transform var(--transition-normal);
}

.stat:hover {
    transform: translateY(-4px);
}

.stat h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.stat p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
    font-weight: 500;
}

.about-image img {
    width: 100%;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

/* Timeline */
.timeline {
    position: relative;
    padding-left: var(--spacing-2xl);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-3xl);
}

.timeline-marker {
    position: absolute;
    left: -33px;
    top: 8px;
    width: 16px;
    height: 16px;
    background: var(--primary-color);
    border-radius: 50%;
    border: 4px solid var(--background-light);
    box-shadow: var(--shadow-md);
}

.timeline-content {
    background: var(--surface-light);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: transform var(--transition-normal);
}

.timeline-content:hover {
    transform: translateX(8px);
}

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

.company {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.duration {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
    font-family: var(--font-mono);
}

.achievements {
    list-style: none;
}

.achievements li {
    position: relative;
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

.achievements li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.skill-category {
    background: var(--surface-light);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: transform var(--transition-normal);
}

.skill-category:hover {
    transform: translateY(-4px);
}

.skill-category h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
}

.skill-category i {
    font-size: 1.25rem;
}

.skill-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.skill-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    background: var(--background-light);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.skill-name {
    font-weight: 500;
    color: var(--text-primary);
}

.skill-badge {
    background: var(--gradient-primary);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
}

.skill-bar {
    flex: 1;
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    margin-left: var(--spacing-md);
}

.skill-progress {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 4px;
    transition: width var(--transition-slow);
}

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

.cert-item {
    padding: var(--spacing-md);
    background: var(--background-light);
    border-radius: var(--radius-md);
    text-align: center;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.cert-item:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* Education Section */
.education-grid {
    display: grid;
    gap: var(--spacing-xl);
}

.education-item {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background: var(--surface-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: transform var(--transition-normal);
}

.education-item:hover {
    transform: translateY(-4px);
}

.education-item.featured {
    border: 2px solid var(--primary-color);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(6, 182, 212, 0.05) 100%);
}

.education-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.education-content h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.institution {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.duration, .gpa, .minor, .description {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

/* Projects Section */
.project-showcase {
    background: var(--surface-light);
    border-radius: var(--radius-xl);
    padding: var(--spacing-3xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.project-content h3 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.project-description {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

.project-timeline {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-2xl);
    font-family: var(--font-mono);
}

.project-features {
    display: grid;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.feature {
    padding: var(--spacing-lg);
    background: var(--background-light);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.feature h4 {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.tech-item {
    background: var(--gradient-primary);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
}

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

.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

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

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

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 1024px) {
    #header {
        position: relative;
        width: 100%;
        height: auto;
    }
    
    #main {
        margin-left: 0;
    }
    
    .header-content {
        padding: var(--spacing-xl);
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .highlight-stats {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .highlight-stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline {
        padding-left: var(--spacing-lg);
    }
    
    .timeline-marker {
        left: -25px;
    }
    
    .project-links {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .section {
        padding: var(--spacing-xl) 0;
    }
    
    .profile-image img {
        width: 100px;
        height: 100px;
    }
    
    .social-links {
        gap: var(--spacing-sm);
    }
    
    .social-link {
        width: 40px;
        height: 40px;
    }
}

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

.section {
    animation: fadeInUp 0.6s ease-out;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--background-light);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* Preload Animation */
body.is-preload * {
    animation-delay: 0.25s !important;
    animation-duration: 0.75s !important;
    animation-fill-mode: both !important;
}