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

:root {
    /* Colors */
    --primary-navy: hsl(223, 44%, 15%);
    --elegant-blue: hsl(216, 25%, 25%);
    --warm-gray: hsl(30, 8%, 45%);
    --soft-white: hsl(0, 0%, 98%);
    --accent-blue: hsl(210, 85%, 55%);
    --accent-green: hsl(142, 71%, 45%);
    --accent-orange: hsl(25, 95%, 53%);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 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);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
}

html {
    scroll-behavior: smooth;
}

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

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(34, 42, 69, 0.1);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-brand a {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-navy);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.nav-brand a:hover {
    color: var(--accent-blue);
}

.nav-menu {
    display: flex;
    gap: var(--spacing-8);
    align-items: center;
}

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

.nav-link:hover,
.nav-link.active {
    color: var(--accent-blue);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-blue);
    transition: width var(--transition-fast);
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

/* Language Switcher */
.language-switcher {
    position: relative;
}

.language-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-3);
    background: transparent;
    border: 1px solid rgba(34, 42, 69, 0.2);
    border-radius: 6px;
    color: var(--warm-gray);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.language-btn:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.language-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: white;
    border: 1px solid rgba(34, 42, 69, 0.1);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
    z-index: 1001;
}

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

.language-option {
    display: block;
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    background: transparent;
    border: none;
    text-align: left;
    color: var(--warm-gray);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    border-radius: 6px;
}

.language-option:hover {
    background: rgba(34, 42, 69, 0.05);
    color: var(--accent-blue);
}

/* Mobile Navigation Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--spacing-2);
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-navy);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--soft-white) 0%, rgba(59, 130, 246, 0.05) 100%);
    padding-top: 70px;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

.hero-content {
    max-width: 600px;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    color: var(--primary-navy);
    margin-bottom: var(--spacing-6);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--warm-gray);
    margin-bottom: var(--spacing-8);
    line-height: 1.5;
}

.hero-labels {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-8);
}

.hero-label {
    padding: var(--spacing-2) var(--spacing-4);
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent-blue);
    border-radius: 20px;
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-8);
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-6);
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
    cursor: pointer;
    font-size: var(--font-size-base);
}

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

.btn-primary:hover {
    background: hsl(210, 85%, 50%);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

.hero-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    color: var(--accent-green);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.status-indicator {
    width: 8px;
    height: 8px;
    background: var(--accent-green);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Section Styles */
section {
    padding: var(--spacing-20) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-16);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--primary-navy);
    margin-bottom: var(--spacing-4);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--warm-gray);
    line-height: 1.6;
}

/* About Section */
.about {
    background: white;
}

.about-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-8);
}

.about-card {
    background: var(--soft-white);
    padding: var(--spacing-8);
    border-radius: 12px;
    border: 1px solid rgba(34, 42, 69, 0.1);
    transition: all var(--transition-normal);
}

.about-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.about-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--primary-navy);
    margin-bottom: var(--spacing-4);
}

.about-card ul {
    list-style: none;
}

.about-card li {
    color: var(--warm-gray);
    margin-bottom: var(--spacing-2);
    padding-left: var(--spacing-4);
    position: relative;
}

.about-card li::before {
    content: '•';
    color: var(--accent-blue);
    position: absolute;
    left: 0;
}

.interests-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-4);
}

.interest-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    color: var(--warm-gray);
}

.interest-item i {
    color: var(--accent-blue);
    font-size: var(--font-size-lg);
}

/* Experience Section */
.experience {
    background: var(--soft-white);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--accent-blue);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-12);
    padding-left: var(--spacing-20);
}

.timeline-marker {
    position: absolute;
    left: 22px;
    top: 8px;
    width: 16px;
    height: 16px;
    background: var(--accent-blue);
    border: 4px solid white;
    border-radius: 50%;
    box-shadow: var(--shadow-md);
}

.timeline-card {
    background: white;
    padding: var(--spacing-6);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

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

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-4);
    flex-wrap: wrap;
    gap: var(--spacing-2);
}

.timeline-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--primary-navy);
}

.timeline-period {
    color: var(--warm-gray);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.timeline-description {
    color: var(--warm-gray);
    line-height: 1.6;
    margin-bottom: var(--spacing-4);
}

.timeline-skills {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
}

.timeline-skill {
    padding: var(--spacing-1) var(--spacing-3);
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent-blue);
    border-radius: 12px;
    font-size: var(--font-size-xs);
    font-weight: 500;
}

/* Skills Section */
.skills {
    background: white;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-8);
}

.skill-category {
    background: var(--soft-white);
    padding: var(--spacing-8);
    border-radius: 12px;
    border: 1px solid rgba(34, 42, 69, 0.1);
    transition: all var(--transition-normal);
}

.skill-category:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.skill-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
}

.skill-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    color: white;
}

.skill-icon.programming {
    background: var(--accent-blue);
}

.skill-icon.business {
    background: var(--accent-green);
}

.skill-icon.creative {
    background: var(--accent-orange);
}

.skill-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--primary-navy);
}

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

.skill-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-4);
}

.skill-name {
    color: var(--warm-gray);
    font-weight: 500;
}

.skill-level {
    font-size: var(--font-size-sm);
    color: var(--accent-blue);
    font-weight: 600;
}

.skill-bar {
    height: 4px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 2px;
    margin-top: var(--spacing-2);
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: var(--accent-blue);
    border-radius: 2px;
    transition: width 1s ease-in-out;
}

/* Projects Section */
.projects {
    background: var(--soft-white);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-8);
}

.project-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.project-content {
    padding: var(--spacing-6);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-4);
}

.project-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--primary-navy);
    margin-bottom: var(--spacing-2);
}

.project-description {
    color: var(--warm-gray);
    line-height: 1.6;
    margin-bottom: var(--spacing-6);
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-6);
}

.tech-tag {
    padding: var(--spacing-1) var(--spacing-3);
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent-blue);
    border-radius: 12px;
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.project-actions {
    display: flex;
    gap: var(--spacing-3);
    flex-wrap: wrap;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-4);
    color: var(--accent-blue);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: 500;
    border: 1px solid var(--accent-blue);
    border-radius: 6px;
    transition: all var(--transition-fast);
}

.project-link:hover {
    background: var(--accent-blue);
    color: white;
}

.project-link.primary {
    background: var(--accent-blue);
    color: white;
}

.project-link.primary:hover {
    background: hsl(210, 85%, 50%);
}

/* Contact Section */
.contact {
    background: white;
}

.contact-content {
    max-width: 800px;
    margin: 0 auto;
}

.contact-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-6);
    margin-bottom: var(--spacing-12);
}

.contact-card {
    text-align: center;
    padding: var(--spacing-8);
    background: var(--soft-white);
    border-radius: 12px;
    border: 1px solid rgba(34, 42, 69, 0.1);
    transition: all var(--transition-normal);
}

.contact-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.contact-icon {
    width: 64px;
    height: 64px;
    background: var(--accent-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-4);
    font-size: var(--font-size-2xl);
    color: white;
}

.contact-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--primary-navy);
    margin-bottom: var(--spacing-2);
}

.contact-card p {
    color: var(--warm-gray);
    margin-bottom: var(--spacing-3);
}

.contact-link {
    color: var(--accent-blue);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.contact-link:hover {
    color: hsl(210, 85%, 50%);
}

.social-section {
    text-align: center;
    margin-bottom: var(--spacing-12);
}

.social-section h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--primary-navy);
    margin-bottom: var(--spacing-6);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-4);
    flex-wrap: wrap;
}

.social-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-4);
    color: var(--warm-gray);
    text-decoration: none;
    border: 1px solid rgba(34, 42, 69, 0.2);
    border-radius: 8px;
    transition: all var(--transition-fast);
}

.social-link:hover {
    color: var(--accent-blue);
    border-color: var(--accent-blue);
    transform: translateY(-2px);
}

.availability-card {
    text-align: center;
    padding: var(--spacing-8);
    background: linear-gradient(135deg, var(--accent-blue) 0%, hsl(210, 85%, 60%) 100%);
    border-radius: 12px;
    color: white;
}

.availability-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-4);
}

.availability-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
}

.availability-card p {
    margin-bottom: var(--spacing-6);
    opacity: 0.9;
    line-height: 1.6;
}

.availability-card .btn {
    background: white;
    color: var(--accent-blue);
}

.availability-card .btn:hover {
    background: var(--soft-white);
    transform: translateY(-2px);
}

/* Footer */
.footer {
    background: var(--primary-navy);
    color: white;
    padding: var(--spacing-12) 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-4);
}

.footer-brand h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-2);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
}

.footer-copyright p {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-sm);
}

/* RTL Support */
[dir="rtl"] {
    text-align: right;
}

[dir="rtl"] .nav-menu {
    flex-direction: row-reverse;
}

[dir="rtl"] .hero-actions {
    flex-direction: row-reverse;
}

[dir="rtl"] .timeline::before {
    left: auto;
    right: 30px;
}

[dir="rtl"] .timeline-item {
    padding-left: 0;
    padding-right: var(--spacing-20);
}

[dir="rtl"] .timeline-marker {
    left: auto;
    right: 22px;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: var(--spacing-4);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100vh);
        transition: transform var(--transition-normal);
    }

    .nav-menu.active {
        transform: translateY(0);
    }

    .nav-toggle {
        display: flex;
    }

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-lg);
    }

    .section-title {
        font-size: var(--font-size-3xl);
    }

    .about-content {
        grid-template-columns: 1fr;
    }

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

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

    .contact-cards {
        grid-template-columns: 1fr;
    }

    .footer-content {
        text-align: center;
        flex-direction: column;
    }

    .timeline::before {
        left: 15px;
    }

    .timeline-item {
        padding-left: var(--spacing-12);
    }

    .timeline-marker {
        left: 7px;
        width: 14px;
        height: 14px;
    }

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

    .social-links {
        flex-direction: column;
        align-items: center;
    }

    .hero-actions {
        flex-direction: column;
        align-items: flex-start;
    }

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

@media (max-width: 480px) {
    .container,
    .nav-container,
    .hero-container {
        padding: 0 var(--spacing-3);
    }

    .hero-title {
        font-size: var(--font-size-2xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
    }

    .section-title {
        font-size: var(--font-size-2xl);
    }

    .about-card,
    .skill-category,
    .project-content,
    .contact-card,
    .availability-card {
        padding: var(--spacing-6);
    }

    .projects-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-6);
    }

    .project-card {
        margin: 0 var(--spacing-2);
    }
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.6s ease-out;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.6s ease-out;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Loading animation */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Print styles */
@media print {
    .nav,
    .hero-actions,
    .project-actions,
    .contact-card,
    .social-section,
    .availability-card {
        display: none;
    }

    .hero {
        min-height: auto;
        padding-top: 0;
    }

    body {
        font-size: 12pt;
        line-height: 1.4;
        color: black;
        background: white;
    }

    .section-title {
        font-size: 18pt;
        page-break-after: avoid;
    }

    .timeline-card,
    .project-card,
    .about-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }
}