/* Base & Reset */
:root {
    --primary-color: #6c63ff;
    --secondary-color: #4db5ff;
    --text-color: #2a2a2a;
    --background-color: #f5f5f5;
    --card-background: #ffffff;
    --project-card-top: #d5d3d3;
    --project-icon-color: #6c63ff;
    --transition: all 0.3s ease;
    --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    --border-radius: 8px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    overflow-x: hidden;
    transition: var(--transition);
}

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

ul {
    list-style: none;
}

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

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: var(--section-padding);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 4px;
    background: var(--primary-color);
    left: 50%;
    bottom: -15px;
    transform: translateX(-50%);
    border-radius: 2px;
}

.highlight {
    color: var(--primary-color);
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-align: center;
}

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

.primary-btn:hover {
    background: #5a52e0;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(108, 99, 255, 0.2);
}

.secondary-btn {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.secondary-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.small-btn {
    padding: 8px 15px;
    font-size: 0.9rem;
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--card-background);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: var(--transition);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

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

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

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

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 3px;
    background: var(--primary-color);
    bottom: -5px;
    left: 0;
    transition: var(--transition);
}

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

.theme-toggle {
    display: flex;
    align-items: center;
    gap: 5px;
    cursor: pointer;
}

.toggle-track {
    position: relative;
    width: 40px;
    height: 20px;
    background: #ddd;
    border-radius: 20px;
    transition: var(--transition);
}

.toggle-thumb {
    position: absolute;
    left: 2px;
    top: 2px;
    width: 16px;
    height: 16px;
    background: white;
    border-radius: 50%;
    transition: var(--transition);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--text-color);
    border-radius: 3px;
    transition: var(--transition);
}

/* Social Icons */
.social-icons {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 900;
}

.social-icons a {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: var(--card-background);
    border-radius: 50%;
    color: var(--primary-color);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.social-icons a:hover {
    transform: translateY(-5px);
    background: var(--primary-color);
    color: white;
}

/* Hero Section */
#home {
    padding-top: 150px;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-content {
    flex: 1;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 15px;
    line-height: 1.2;
}

.hero-content h2 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--secondary-color);
}

.hero-content p {
    font-size: 1.1rem;
    margin-bottom: 30px;
    max-width: 600px;
}

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

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.profile-img-container {
    position: relative;
    width: 350px;
    height: 350px;
    border-radius: 50%;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    display: flex;
    justify-content: center;
    align-items: center;
    animation: float 3s ease-in-out infinite;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.profile-img-placeholder {
    width: 330px;
    height: 330px;
    border-radius: 50%;
    background: var(--card-background);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 100px;
    color: var(--primary-color);
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-15px);
    }
}

/* About Section */
.about-content {
    display: flex;
    gap: 50px;
    align-items: center;
}

.about-text {
    flex: 3;
}

.about-text p {
    margin-bottom: 20px;
    font-size: 1.05rem;
}

.about-stats {
    flex: 2;
    display: flex;
    justify-content: space-around;
    text-align: center;
}

.stat-item h3 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.counter {
    display: inline-block;
}

/* Experience Section */
.resume-btn-container {
    display: flex;
    justify-content: center;
    margin-bottom: 50px;
}

.resume-btn {
    display: flex;
    align-items: center;
    gap: 10px;
}

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

.timeline::before {
    content: '';
    position: absolute;
    width: 2px;
    height: 100%;
    background: var(--primary-color);
    left: 50%;
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 60px;
}

.timeline-dot {
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.timeline-content {
    position: relative;
    width: 45%;
    padding: 20px;
    background: var(--card-background);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.timeline-item:nth-child(odd) .timeline-content {
    left: 55%;
}

.timeline-item:nth-child(even) .timeline-content {
    left: 0;
}

.timeline-content h3 {
    font-size: 1.3rem;
    margin-bottom: 5px;
    color: var(--primary-color);
}

.timeline-content h4 {
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 10px;
}

.timeline-date {
    font-style: italic;
    color: #777;
    margin-bottom: 15px;
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.project-card {
    background: var(--card-background);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.project-img {
    height: 200px;
    background: var(--project-card-top);
    display: flex;
    justify-content: center;
    align-items: center;
}

.img-placeholder {
    font-size: 60px;
    color: var(--project-icon-color);
}

.project-content {
    padding: 20px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

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

.project-content p {
    margin-bottom: 20px;
    flex-grow: 1;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 15px;
}

.project-tags span {
    background: rgba(108, 99, 255, 0.1);
    color: var(--primary-color);
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
}

.project-links {
    display: flex;
    gap: 10px;
    margin-top: auto;
}

.more-projects {
    text-align: center;
}

/* Skills Section */
.skills-content {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.skill-category h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.skill-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 25px;
}

.skill-item {
    background: var(--card-background);
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.skill-item:hover {
    transform: translateY(-5px);
}

.skill-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.skill-item h4 {
    margin-bottom: 15px;
}

.skill-level {
    height: 8px;
    background: #eee;
    border-radius: 10px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
}

/* Contact Section */
.contact-content {
    display: flex;
    justify-content: center;
    margin-bottom: 50px;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1000px;
    width: 100%;
}

.contact-item {
    background: var(--card-background);
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    text-align: center;
    transition: var(--transition);
}

.contact-item:hover {
    transform: translateY(-5px);
}

.contact-item i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.contact-item h3 {
    margin-bottom: 10px;
}

/* For mobile */
@media screen and (max-width: 768px) {
    .container {
        width: 95%;
    }
    
    .section {
        padding: 70px 0;
    }
    
    .about-stats {
        flex-direction: column;
        gap: 30px;
        margin-top: 30px;
    }
    
    .stat-item {
        width: 100%;
    }
    
    .nav-links {
        position: fixed;
        top: 80px;
        right: -100%;
        width: 70%;
        height: calc(100vh - 80px);
        background: var(--card-background);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 40px;
        transition: var(--transition);
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    #home {
        padding-top: 120px;
    }
    
    .hero-content {
        text-align: center;
        margin-bottom: 40px;
    }
    
    .hero-content p {
        margin: 0 auto 30px;
    }
    
    .cta-buttons {
        justify-content: center;
    }
    
    .section-title {
        font-size: 2rem;
        margin-bottom: 40px;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-dot {
        left: 20px;
    }
    
    .timeline-content {
        width: 85%;
        left: 55px !important;
    }
}

@media screen and (max-width: 576px) {
    .logo {
        font-size: 1.5rem;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-content h2 {
        font-size: 1.3rem;
    }
    
    .profile-img-container {
        width: 250px;
        height: 250px;
    }
    
    .profile-img-placeholder {
        width: 230px;
        height: 230px;
        font-size: 80px;
    }
    
    .project-card {
        max-width: 320px;
        margin: 0 auto;
    }
    
    .social-icons {
        right: 15px;
        bottom: 15px;
    }
    
    .social-icons a {
        width: 35px;
        height: 35px;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .btn {
        width: 100%;
    }
}

/* Footer */
footer {
    background: var(--card-background);
    padding: 25px 0;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
}

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

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

/* Responsive Design */
@media screen and (max-width: 992px) {
    .hero-content h1 {
        font-size: 3rem;
    }
    
    .hero-content h2 {
        font-size: 1.5rem;
    }
    
    .about-content,
    .contact-content {
        flex-direction: column;
    }
    
    .profile-img-container {
        width: 300px;
        height: 300px;
    }
    
    .profile-img-placeholder {
        width: 280px;
        height: 280px;
    }
}