/* Base Styles */
:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #10b981;
    --accent-color: #f59e0b;
    --dark-color: #1f2937;
    --light-color: #f9fafb;
    --gray-color: #6b7280;
    --light-gray: #e5e7eb;
    --border-radius: 8px;
    --box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s ease;
    
    /* Background and text colors */
    --bg-color: #f9fafb;
    --text-color: #1f2937;
    --card-bg: #ffffff;
    --header-bg: #ffffff;
    --footer-bg: #1f2937;
    --footer-text: #ffffff;
    --code-bg: #282c34;
    --code-text: #abb2bf;
}

/* Dark mode colors */
[data-theme="dark"] {
    --primary-color: #818cf8;
    --primary-dark: #6366f1;
    --bg-color: #111827;
    --text-color: #f9fafb;
    --card-bg: #1f2937;
    --gray-color: #9ca3af;
    --light-gray: #374151;
    --header-bg: #1f2937;
    --footer-bg: #111827;
    --footer-text: #f9fafb;
    --box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.15);
    --code-bg: #1a1d23;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    transition: background-color 0.3s ease, color 0.3s ease;
}

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

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: var(--border-radius);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 2;
}

section {
    padding: 100px 0;
    position: relative;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 1rem;
}

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

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

.btn-secondary {
    background-color: transparent;
    color: var(--text-color);
    border: 1px solid var(--light-gray);
}

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

/* Header Styles */
header {
    background-color: var(--header-bg);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: background-color 0.3s ease;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.dark-mode-toggle {
    background: none;
    border: none;
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--text-color);
    background-color: var(--light-gray);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.dark-mode-toggle:hover {
    background-color: var(--gray-color);
}

.dark-mode-toggle .fa-sun {
    position: absolute;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
}

.dark-mode-toggle .fa-moon {
    position: absolute;
    opacity: 1;
    transform: translateY(0);
    transition: var(--transition);
}

[data-theme="dark"] .dark-mode-toggle .fa-sun {
    opacity: 1;
    transform: translateY(0);
}

[data-theme="dark"] .dark-mode-toggle .fa-moon {
    opacity: 0;
    transform: translateY(-20px);
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo span {
    color: var(--accent-color);
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--primary-color);
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    margin: 5px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    padding-top: 120px;
    padding-bottom: 120px;
    background-color: var(--bg-color);
    position: relative;
    overflow: hidden;
}

.hero-bg-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
}

.circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
}

.circle-1 {
    width: 300px;
    height: 300px;
    background-color: var(--primary-color);
    top: -100px;
    right: -100px;
}

.circle-2 {
    width: 200px;
    height: 200px;
    background-color: var(--secondary-color);
    bottom: -50px;
    left: 10%;
}

.square {
    position: absolute;
    width: 150px;
    height: 150px;
    background-color: var(--accent-color);
    opacity: 0.1;
    transform: rotate(45deg);
    top: 40%;
    right: 15%;
}

.dots {
    position: absolute;
    width: 200px;
    height: 200px;
    background-image: radial-gradient(var(--gray-color) 2px, transparent 2px);
    background-size: 20px 20px;
    opacity: 0.2;
}

.dots-1 {
    top: 20%;
    left: 5%;
}

.dots-2 {
    bottom: 10%;
    right: 5%;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.badge {
    display: inline-block;
    background-color: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 20px;
}

.hero-text h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--text-color);
    font-weight: 800;
}

.hero-text p {
    font-size: 1.2rem;
    color: var(--gray-color);
    margin-bottom: 30px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
}

.code-window {
    background-color: var(--code-bg);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--box-shadow);
    max-width: 500px;
    margin: 0 auto;
}

.code-header {
    background-color: #21252b;
    padding: 10px 15px;
    display: flex;
    align-items: center;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin-right: 8px;
}

.red {
    background-color: #ff5f56;
}

.yellow {
    background-color: #ffbd2e;
}

.green {
    background-color: #27c93f;
}

.code-title {
    margin-left: 10px;
    color: #abb2bf;
    font-size: 0.9rem;
    font-family: monospace;
}

.code-content {
    padding: 20px;
    overflow-x: auto;
}

.code-content pre {
    margin: 0;
    font-family: 'Fira Code', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--code-text);
}

.tag {
    color: #e06c75;
}

.attr {
    color: #d19a66;
}

.value {
    color: #98c379;
}

.comment {
    color: #7f848e;
    font-style: italic;
}

/* Section Header */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
    color: var(--text-color);
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
}

.section-header p {
    font-size: 1.1rem;
    color: var(--gray-color);
    max-width: 600px;
    margin: 0 auto;
}

/* Services Section */
.services {
    background-color: var(--card-bg);
    transition: background-color 0.3s ease;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: var(--bg-color);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
    text-align: center;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.service-icon {
    width: 70px;
    height: 70px;
    background-color: rgba(99, 102, 241, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.service-icon i {
    font-size: 30px;
    color: var(--primary-color);
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

.service-card p {
    color: var(--gray-color);
    margin-bottom: 20px;
}

.service-features {
    text-align: left;
    margin-top: auto;
}

.service-features li {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    color: var(--gray-color);
}

.service-features i {
    color: var(--secondary-color);
    margin-right: 10px;
}

/* Skills Section */
.skills {
    background-color: var(--bg-color);
    transition: background-color 0.3s ease;
}

.skills-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 40px;
    align-items: start;
}

.skills-text p {
    margin-bottom: 20px;
    color: var(--gray-color);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.skill-category h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: var(--text-color);
    position: relative;
    display: inline-block;
    padding-bottom: 10px;
}

.skill-category h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background-color: var(--primary-color);
}

.skill-items {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.skill-item {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

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

.skill-bar {
    height: 8px;
    background-color: var(--light-gray);
    border-radius: 4px;
    overflow: hidden;
}

.skill-level {
    height: 100%;
    background-color: var(--primary-color);
    border-radius: 4px;
    width: 0;
    animation: skill-fill 1.5s ease forwards;
}

@keyframes skill-fill {
    0% {
        width: 0;
    }
    100% {
        width: var(--width, 0);
    }
}

/* Projects Section */
.projects {
    background-color: var(--card-bg);
    transition: background-color 0.3s ease;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.project-card {
    background-color: var(--bg-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.project-image {
    position: relative;
    overflow: hidden;
    height: 200px;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-overlay {
    position: absolute;
    top: 15px;
    right: 15px;
}

.project-type {
    background-color: var(--primary-color);
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
}

.project-content {
    padding: 20px;
}

.project-content h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-color);
}

.project-content p {
    color: var(--gray-color);
    margin-bottom: 15px;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.project-tech span {
    background-color: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Workflow Section */
.workflow {
    background-color: var(--bg-color);
    transition: background-color 0.3s ease;
}

.workflow-steps {
    max-width: 800px;
    margin: 0 auto;
}

.workflow-step {
    display: flex;
    gap: 30px;
    margin-bottom: 40px;
    position: relative;
}

.workflow-step:last-child {
    margin-bottom: 0;
}

.workflow-step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 70px;
    left: 30px;
    width: 2px;
    height: calc(100% - 30px);
    background-color: var(--light-gray);
}

.step-number {
    width: 60px;
    height: 60px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
    position: relative;
    z-index: 2;
}

.step-content {
    padding-top: 10px;
}

.step-content h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-color);
}

.step-content p {
    color: var(--gray-color);
}

/* Testimonials Section */
.testimonials {
    background-color: var(--card-bg);
    transition: background-color 0.3s ease;
    padding: 100px 0;
}

.testimonial-slider {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    overflow: hidden;
}

.testimonial-track {
    display: flex;
    transition: transform 0.5s ease;
}

.testimonial-card {
    min-width: 100%;
    padding: 20px;
}

.testimonial-content {
    background-color: var(--bg-color);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 20px;
    position: relative;
    transition: background-color 0.3s ease;
}

.testimonial-content::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 30px;
    border-width: 15px 15px 0;
    border-style: solid;
    border-color: var(--bg-color) transparent;
    transition: border-color 0.3s ease;
}

.testimonial-content p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-color);
    font-style: italic;
    position: relative;
}

.testimonial-content p::before {
    content: '"';
    font-size: 4rem;
    color: var(--primary-color);
    opacity: 0.2;
    position: absolute;
    top: -20px;
    left: -15px;
    font-family: Georgia, serif;
}

.testimonial-author {
    display: flex;
    align-items: center;
    padding-left: 20px;
}

.testimonial-author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--primary-color);
}

.author-info {
    margin-left: 15px;
}

.author-info h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: var(--text-color);
}

.author-info p {
    color: var(--gray-color);
    font-size: 0.9rem;
}

.testimonial-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 40px;
}

.prev-btn,
.next-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.prev-btn:hover,
.next-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}

.testimonial-dots {
    display: flex;
    gap: 10px;
    margin: 0 20px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--light-gray);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background-color: var(--primary-color);
    transform: scale(1.2);
}

/* Contact Section */
.contact {
    background-color: var(--bg-color);
    transition: background-color 0.3s ease;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 40px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.info-card {
    background-color: var(--card-bg);
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: background-color 0.3s ease, transform 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.info-card:hover {
    transform: translateY(-5px);
}

.info-icon {
    width: 50px;
    height: 50px;
    background-color: rgba(99, 102, 241, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
}

.info-icon i {
    font-size: 20px;
    color: var(--primary-color);
}

.info-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--text-color);
}

.info-card p {
    color: var(--gray-color);
}

.contact-form {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: background-color 0.3s ease;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--light-gray);
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--bg-color);
    color: var(--text-color);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.form-group textarea {
    resize: vertical;
}

/* Footer */
footer {
    background-color: var(--footer-bg);
    color: var(--footer-text);
    padding: 80px 0 30px;
    transition: background-color 0.3s ease;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-logo a {
    font-size: 1.8rem;
    font-weight: 700;
    color: white;
    margin-bottom: 15px;
    display: inline-block;
}

.footer-logo span {
    color: var(--accent-color);
}

.footer-logo p {
    color: var(--light-gray);
    max-width: 300px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.footer-column h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: white;
    position: relative;
    padding-bottom: 10px;
}

.footer-column h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--primary-color);
}

.footer-column a {
    display: block;
    margin-bottom: 10px;
    color: var(--light-gray);
    transition: var(--transition);
}

.footer-column a:hover {
    color: white;
    transform: translateX(5px);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: var(--light-gray);
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .hero-text h1 {
        font-size: 2.8rem;
    }
    
    .skills-content {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        flex-direction: row;
        flex-wrap: wrap;
    }
    
    .info-card {
        flex: 1;
        min-width: 200px;
    }
}

@media (max-width: 992px) {
    .hero-content,
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .hero-text {
        text-align: center;
        order: 1;
    }
    
    .hero-image {
        order: 2;
        margin-top: 40px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .badge {
        margin: 0 auto 20px;
    }
    
    .workflow-step {
        flex-direction: column;
        gap: 15px;
        align-items: center;
        text-align: center;
    }
    
    .workflow-step:not(:last-child)::after {
        left: 50%;
        transform: translateX(-50%);
        top: 60px;
        height: 40px;
    }
    
    .step-content {
        padding-top: 0;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .services-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .contact-info {
        flex-direction: column;
    }
}

/* Mobile Menu */
.mobile-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--card-bg);
    padding: 20px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    z-index: 99;
    transition: background-color 0.3s ease;
}

.mobile-nav.active {
    display: block;
}

.mobile-nav a {
    display: block;
    padding: 10px 0;
    border-bottom: 1px solid var(--light-gray);
    font-weight: 500;
}

.mobile-nav a:last-child {
    border-bottom: none;
}

/* Animation Classes */
.animated {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

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