/* Base Variables & CSS Reset */
:root {
    /* Light Mode */
    --bg-color: #ffffff;
    --bg-alt: #f8f9fa;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --accent-color: #0D8ABC;
    --accent-hover: #0a6b94;
    --border-color: #e5e5e5;
    --card-bg: #ffffff;
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;
    --transition: all 0.3s ease;
}

body.dark-mode {
    --bg-color: #121212;
    --bg-alt: #1e1e1e;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --accent-color: #0bd161; 
    --accent-hover: #09a94e;
    --border-color: #333333;
    --card-bg: #2d2d2d;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    transition: var(--transition);
}

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

ul {
    list-style: none;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-primary);
}

.section {
    padding: 80px 0;
}

.bg-alt {
    background-color: var(--bg-alt);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--accent-color);
    margin: 15px auto 0;
    border-radius: 2px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 500;
    font-family: var(--font-heading);
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background-color: var(--accent-color);
    color: #fff;
}

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

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

.btn-outline:hover {
    background-color: var(--accent-color);
    color: #fff;
    transform: translateY(-2px);
}

.btn-icon {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
}

.btn-icon:hover {
    color: var(--accent-color);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 70px;
    background-color: var(--bg-color);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    z-index: 1000;
    display: flex;
    align-items: center;
    transition: var(--transition);
}

body.dark-mode .navbar {
    box-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-heading);
}

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

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

.nav-links a {
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--accent-color);
    transition: width 0.3s ease;
}

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

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

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

.hamburger {
    display: none;
    cursor: pointer;
}

.hamburger .bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    transition: all 0.3s ease-in-out;
    background-color: var(--text-primary);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 70px;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.greeting {
    font-size: 1.2rem;
    font-family: var(--font-heading);
    color: var(--accent-color);
    margin-bottom: 10px;
    font-weight: 500;
}

.name {
    font-size: 4rem;
    margin-bottom: 15px;
    line-height: 1.1;
}

.typing-text {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--text-secondary);
}

#typed {
    color: var(--accent-color);
}

.desc {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
    max-width: 500px;
}

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

.avatar-container {
    position: relative;
    display: flex;
    justify-content: center;
}

.avatar {
    width: 350px;
    height: 350px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid var(--accent-color);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: var(--transition);
}

body.dark-mode .avatar {
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}
.about-text h3, .about-skills h3 {
    margin-bottom: 20px;
    color: var(--accent-color);
}
.timeline {
    border-left: 2px solid var(--accent-color);
    padding-left: 20px;
    margin-top: 20px;
}
.timeline-item {
    position: relative;
    margin-bottom: 30px;
}
.timeline-item::before {
    content: '';
    position: absolute;
    left: -27px;
    top: 5px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--accent-color);
}
.timeline-item h4 {
    margin-bottom: 5px;
}
.timeline-item span {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: normal;
}
.skill-item {
    margin-bottom: 20px;
}
.skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-weight: 500;
}
.progress-bar {
    width: 100%;
    height: 10px;
    background-color: var(--border-color);
    border-radius: 5px;
    overflow: hidden;
}
.progress-bar .progress {
    height: 100%;
    background-color: var(--accent-color);
    border-radius: 5px;
    transition: width 1s ease-in-out;
}

/* Portfolio Section */
.portfolio-filter {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}
.filter-btn {
    padding: 8px 20px;
    border: none;
    background: var(--card-bg);
    color: var(--text-primary);
    border-radius: 30px;
    cursor: pointer;
    font-family: var(--font-heading);
    font-weight: 500;
    transition: var(--transition);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
.filter-btn.active, .filter-btn:hover {
    background: var(--accent-color);
    color: #fff;
}
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
}
.portfolio-card {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    transition: var(--transition);
}
body.dark-mode .portfolio-card {
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
}
.portfolio-card:hover {
    transform: translateY(-10px);
}
.portfolio-img {
    width: 100%;
    height: 220px;
    overflow: hidden;
}
.portfolio-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}
.portfolio-card:hover .portfolio-img img {
    transform: scale(1.05);
}
.portfolio-content {
    padding: 25px;
}
.portfolio-content h3 {
    margin-bottom: 10px;
    font-size: 1.25rem;
}
.portfolio-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 15px;
}
.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}
.tech-badge {
    background: var(--bg-alt);
    color: var(--text-primary);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 500;
}
.portfolio-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}
.btn-sm {
    padding: 8px 20px;
    font-size: 0.9rem;
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.service-card {
    background: var(--card-bg);
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    transition: var(--transition);
}
body.dark-mode .service-card {
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
}
.service-card:hover {
    transform: translateY(-10px);
    border-bottom: 4px solid var(--accent-color);
}
.service-icon {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 20px;
}
.service-card h3 {
    margin-bottom: 15px;
}
.service-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Blog Section */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}
.blog-card {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    transition: var(--transition);
}
body.dark-mode .blog-card {
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
}
.blog-card:hover {
    transform: translateY(-5px);
}
.blog-content {
    padding: 30px;
}
.blog-meta {
    font-size: 0.85rem;
    color: var(--accent-color);
    margin-bottom: 10px;
    font-weight: 500;
}
.blog-content h3 {
    margin-bottom: 15px;
    font-size: 1.4rem;
}
.blog-content p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}
.read-more {
    color: var(--accent-color);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}
.read-more:hover {
    gap: 10px;
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}
.contact-info h3 {
    font-size: 2rem;
    margin-bottom: 15px;
    color: var(--accent-color);
}
.contact-info p {
    color: var(--text-secondary);
    margin-bottom: 30px;
    font-size: 1.1rem;
}
.contact-list li {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    font-size: 1.1rem;
}
.contact-list li i {
    color: var(--accent-color);
    font-size: 1.5rem;
    width: 30px;
    text-align: center;
}
.form-group {
    margin-bottom: 20px;
}
.form-control {
    width: 100%;
    padding: 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
}
.form-control:focus {
    outline: none;
    border-color: var(--accent-color);
}
.w-100 {
    width: 100%;
}
.mt-3 {
    margin-top: 15px;
}

/* Footer */
footer {
    padding: 30px 0;
    text-align: center;
    background-color: var(--bg-alt);
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 991px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .desc {
        margin: 0 auto 30px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-image {
        grid-row: 1;
        margin-bottom: 30px;
    }
    
    .avatar {
        width: 250px;
        height: 250px;
    }
    
    .nav-links {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--bg-color);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 10px rgba(0,0,0,0.1);
        padding: 20px 0;
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .hamburger {
        display: block;
    }
    
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .about-grid, .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
    }
}