/* Base Styles */
:root {
    /* Colors */
    --color-background: #ffffff;
    --color-text: #000000;
    --color-text-light: #666666;
    --color-projects: #0000ff;
    --color-skills: #ffa500;
    --color-experience: #800080;
    --color-services: #008080;
    --color-contact: #ff00ff;
    
    /* Typography */
    --font-primary: 'Inter', sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.5;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.4s ease;
    --transition-slow: 0.6s ease;
    
    /* Border */
    --border-width: 4px;
}

/* Dark Mode */
.dark-mode {
    --color-background: #000000;
    --color-text: #ffffff;
    --color-text-light: #aaaaaa;
}

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

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    line-height: var(--line-height-base);
    color: var(--color-text);
    background-color: var(--color-background);
    overflow-x: hidden;
    transition: background-color var(--transition-medium), color var(--transition-medium);
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

/* Custom Cursor */
.cursor-outer,
.cursor-inner {
    position: fixed;
    border-radius: 50%;
    pointer-events: none;
    transform: translate(-50%, -50%);
    z-index: 9999;
    transition: transform var(--transition-fast), width var(--transition-fast), height var(--transition-fast), background-color var(--transition-fast);
}

.cursor-outer {
    width: 40px;
    height: 40px;
    border: 2px solid var(--color-text);
    background-color: transparent;
}

.cursor-inner {
    width: 8px;
    height: 8px;
    background-color: var(--color-text);
}

/* Cursor hover states */
.cursor-projects .cursor-outer {
    border-color: var(--color-projects);
    background-color: rgba(0, 0, 255, 0.1);
}

.cursor-skills .cursor-outer {
    border-color: var(--color-skills);
    background-color: rgba(255, 165, 0, 0.1);
}

.cursor-experience .cursor-outer {
    border-color: var(--color-experience);
    background-color: rgba(128, 0, 128, 0.1);
}

.cursor-services .cursor-outer {
    border-color: var(--color-services);
    background-color: rgba(0, 128, 128, 0.1);
}

.cursor-contact .cursor-outer {
    border-color: var(--color-contact);
    background-color: rgba(255, 0, 255, 0.1);
}

.cursor-link .cursor-outer {
    transform: translate(-50%, -50%) scale(1.5);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: var(--spacing-md) 0;
    background-color: var(--color-background);
    z-index: 100;
    transition: padding var(--transition-medium), background-color var(--transition-medium);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    transition: color var(--transition-fast);
}

.nav-list {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    position: relative;
    display: flex;
    align-items: center;
    font-size: 1rem;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav-link span {
    margin-right: var(--spacing-xs);
    opacity: 0.7;
}

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

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

.projects-color::after {
    background-color: var(--color-projects);
}

.skills-color::after {
    background-color: var(--color-skills);
}

.experience-color::after {
    background-color: var(--color-experience);
}

.services-color::after {
    background-color: var(--color-services);
}

.contact-color::after {
    background-color: var(--color-contact);
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
}

.hero-content {
    max-width: 800px;
}

.hero-name {
    font-size: 1.2rem;
    font-weight: 400;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
}

.title-line {
    display: block;
}

.specialization-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.specialization-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm);
    border: 1px solid var(--color-text-light);
    border-radius: 4px;
    transition: all var(--transition-fast);
}

.specialization-link:hover {
    background-color: var(--color-text);
    color: var(--color-background);
}

.arrow {
    transition: transform var(--transition-fast);
}

.specialization-link:hover .arrow {
    transform: translateX(5px);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 700;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.scroll-down {
    display: inline-block;
    font-size: 0.9rem;
    font-weight: 500;
    transition: opacity var(--transition-fast);
}

.scroll-down:hover {
    opacity: 0.7;
}

/* Section Headers */
.section-header {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    position: relative;
}

.section-label {
    display: block;
    font-size: 1rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xs);
}

.section-title {
    font-size: 3rem;
    font-weight: 700;
}

/* Colored Borders */
.projects-border {
    border-color: var(--color-projects);
}

.skills-border {
    border-color: var(--color-skills);
}

.experience-border {
    border-color: var(--color-experience);
}

.services-border {
    border-color: var(--color-services);
}

.contact-border {
    border-color: var(--color-contact);
}

.section-header.projects-border {
    border-bottom: var(--border-width) solid var(--color-projects);
}

.section-header.skills-border {
    border-bottom: var(--border-width) solid var(--color-skills);
}

.section-header.experience-border {
    border-bottom: var(--border-width) solid var(--color-experience);
}

.section-header.services-border {
    border-bottom: var(--border-width) solid var(--color-services);
}

.section-header.contact-border {
    border-bottom: var(--border-width) solid var(--color-contact);
}

/* Projects Section */
.featured-title {
    font-size: 1.2rem;
    font-weight: 500;
    margin-bottom: var(--spacing-md);
}

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

.project-card {
    display: block;
    border: 1px solid transparent;
    border-radius: 8px;
    overflow: hidden;
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.project-image {
    height: 250px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-medium);
}

.project-card:hover .project-image img {
    transform: scale(1.05);
}

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

.project-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

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

.project-tag {
    font-size: 0.8rem;
    padding: 4px 8px;
    background-color: rgba(0, 0, 0, 0.05);
    border-radius: 4px;
}

/* Skills Section */
.skills-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.skills-description {
    font-size: 1.1rem;
    line-height: 1.6;
}

.skill-item {
    margin-bottom: var(--spacing-md);
}

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

.skill-name {
    font-size: 1.2rem;
    font-weight: 500;
}

.skill-percentage {
    font-size: 1rem;
    font-weight: 600;
}

.skill-bar {
    height: 8px;
    background-color: rgba(0, 0, 0, 0.1);
    border-radius: 4px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background-color: var(--color-skills);
    width: 0;
    transition: width 1.5s ease;
}

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

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 2px;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.1);
}

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

.timeline-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -6px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background-color: var(--color-experience);
}

.timeline-date {
    font-size: 1rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xs);
}

.timeline-position {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.timeline-company {
    font-size: 1.1rem;
}

/* Services Section */
.services-description {
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
    font-size: 1.1rem;
    line-height: 1.6;
    text-align: center;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.service-card {
    display: flex;
    flex-direction: column;
    padding: var(--spacing-md);
    border: 1px solid transparent;
    border-radius: 8px;
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.service-icon {
    margin-bottom: var(--spacing-md);
}

.service-icon svg {
    width: 40px;
    height: 40px;
}

.service-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.service-price {
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: auto;
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.contact-info {
    font-size: 1.1rem;
    line-height: 1.6;
}

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

.social-link {
    display: inline-block;
    padding: 8px 16px;
    border: 1px solid transparent;
    border-radius: 4px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.social-link:hover {
    background-color: var(--color-text);
    color: var(--color-background);
}

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

.form-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--color-text-light);
    border-radius: 4px;
    font-family: var(--font-primary);
    font-size: 1rem;
    background-color: transparent;
    color: var(--color-text);
    transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-contact);
}

.submit-btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-contact);
    border-radius: 4px;
    background-color: transparent;
    color: var(--color-text);
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.submit-btn:hover {
    background-color: var(--color-contact);
    color: white;
}

/* Footer */
.footer {
    padding: var(--spacing-lg) 0;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.copyright {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.back-to-top {
    font-size: 0.9rem;
    font-weight: 500;
    transition: opacity var(--transition-fast);
}

.back-to-top:hover {
    opacity: 0.7;
}

/* Responsive Styles */
@media (max-width: 992px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .skills-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    .nav-list {
        display: none;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .specialization-list {
        grid-template-columns: 1fr;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
}