/* Modern Professional CV Styles - 2026 */
:root {
    /* Modern Color Palette */
    --primary-color: #60a5fa;
    --primary-dark: #3b82f6;
    --primary-light: #93c5fd;
    --secondary-color: #64748b;
    --accent-color: #22d3ee;
    --success-color: #10b981;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --bg-primary: #f8fafc;
    --bg-secondary: #e2e8f0;
    --bg-accent: #cbd5e1;
    --border-color: #94a3b8;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Inter', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark mode variables */
[data-theme="dark"] {
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-accent: #334155;
    --border-color: #334155;
}

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

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

body {
    font-family: var(--font-primary);
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

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

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

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

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

/* Header Section */
.modern-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: var(--spacing-lg) var(--spacing-md);
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
}

.header-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.profile-image-container {
    position: relative;
}

.profile-image {
    width: 130px;
    height: 130px;
    border-radius: 50%;
    border: 3px solid rgba(255, 255, 255, 0.3);
    object-fit: cover;
    box-shadow: var(--shadow-xl);
}

.header-info {
    flex: 1;
    min-width: 300px;
}

.name {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: var(--spacing-xs);
    color: white;
    letter-spacing: -0.025em;
}

.title {
    font-size: 1.125rem;
    font-weight: 400;
    opacity: 0.95;
    margin-bottom: var(--spacing-sm);
}

.contact-info {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    list-style: none;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    opacity: 0.9;
}

.contact-item i {
    width: 18px;
}

.contact-item a {
    color: white;
    transition: opacity var(--transition-fast);
}

.contact-item a:hover {
    opacity: 0.8;
}

/* Social Links */
.social-links {
    display: flex;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    color: white;
    transition: all var(--transition-base);
}

.social-link:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

/* Theme Toggle */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: var(--bg-secondary);
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
    z-index: 1000;
}

.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
    background: var(--bg-accent);
}

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

/* Main Content Layout */
.content-grid {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

/* Card Styles */
.card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow);
    transition: all var(--transition-base);
    margin-bottom: var(--spacing-lg);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--border-color);
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.card-title i {
    color: var(--primary-color);
}

/* Testimonials Slider */
.testimonials-slider {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow);
    margin-bottom: var(--spacing-lg);
    position: relative;
    overflow: hidden;
}

.testimonial {
    display: none;
    animation: fadeIn var(--transition-slow);
}

.testimonial.active {
    display: block;
}

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

.testimonial-text {
    font-style: italic;
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.testimonial-author {
    font-weight: 600;
    color: var(--primary-color);
    text-align: right;
}

.slider-controls {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.slider-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-accent);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    color: var(--text-primary);
}

.slider-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: scale(1.1);
}

.slider-indicators {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
}

.indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--border-color);
    cursor: pointer;
    transition: all var(--transition-base);
}

.indicator.active {
    background: var(--primary-color);
    width: 24px;
    border-radius: 4px;
}

/* Work Experience */
.experience-item {
    position: relative;
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.experience-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 12px;
    height: 12px;
    background: var(--primary-color);
    border-radius: 50%;
    border: 3px solid var(--bg-primary);
    box-shadow: 0 0 0 3px var(--border-color);
}

.experience-item::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 20px;
    width: 2px;
    height: calc(100% + var(--spacing-sm));
    background: var(--border-color);
}

.experience-item:last-child::after {
    display: none;
}

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

.experience-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.experience-company {
    font-weight: 500;
    color: var(--primary-color);
}

.experience-period {
    font-size: 0.875rem;
    color: var(--text-muted);
    white-space: nowrap;
}

.experience-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.experience-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
}

.tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--bg-accent);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.tag:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-1px);
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.skill-category {
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.skill-category:hover {
    background: var(--bg-primary);
    box-shadow: var(--shadow);
}

.skill-category-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.skill-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    list-style: none;
}

.skill-item {
    padding: 0.375rem 0.75rem;
    background: var(--bg-accent);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.skill-item:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

/* Sidebar */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.sidebar-section {
    background: var(--bg-primary);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.sidebar-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.sidebar-title i {
    color: var(--primary-color);
}

.sidebar-list {
    list-style: none;
}

.sidebar-item {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-color);
}

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

.item-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.item-subtitle {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.item-date {
    font-size: 0.875rem;
    color: var(--text-muted);
    font-style: italic;
}

/* GitHub Projects */
.project-link {
    display: block;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    margin-bottom: var(--spacing-xs);
}

.project-link:hover {
    background: var(--bg-accent);
    transform: translateX(4px);
}

.project-title {
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.project-description {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Footer */
.modern-footer {
    text-align: center;
    padding: var(--spacing-lg);
    color: var(--text-muted);
    font-size: 0.875rem;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    margin-top: var(--spacing-xl);
}

.modern-footer a {
    color: var(--primary-color);
    font-weight: 500;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .content-grid {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        order: 2;
    }
}

@media (max-width: 768px) {
    .name {
        font-size: 2rem;
    }
    
    .title {
        font-size: 1.25rem;
    }
    
    .header-content {
        flex-direction: column;
        text-align: center;
    }
    
    .contact-info {
        flex-direction: column;
        align-items: center;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.35rem; }
}

@media (max-width: 480px) {
    .modern-container {
        padding: var(--spacing-sm);
    }
    
    .card {
        padding: var(--spacing-md);
    }
    
    .theme-toggle {
        top: 10px;
        right: 10px;
        width: 45px;
        height: 45px;
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mb-0 { margin-bottom: 0; }
.mt-lg { margin-top: var(--spacing-lg); }
.hidden { display: none; }

/* Loading Animation */
@keyframes shimmer {
    0% { background-position: -1000px 0; }
    100% { background-position: 1000px 0; }
}

.loading {
    animation: shimmer 2s infinite;
    background: linear-gradient(90deg, var(--bg-accent) 25%, var(--bg-secondary) 50%, var(--bg-accent) 75%);
    background-size: 1000px 100%;
}