/* Modern CSS Reset and Base Styles */
:root {
    --primary-color: #2563eb;
    --secondary-color: #3b82f6;
    --text-color: #1f2937;
    --light-text: #6b7280;
    --background: #ffffff;
    --section-bg: #f3f4f6;
    --border-color: #e5e7eb;
    --transition: all 0.3s ease;
    --accent-color: #10b981;
    --danger-color: #ef4444;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    text-align: center;
    position: relative;
}

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

/* Layout */
.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 5rem 2rem;
}

/* Header and Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    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::after,
.nav-links a.active::after {
    width: 100%;
}

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

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--text-color);
    margin: 5px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    padding: 8rem 5% 2rem;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.05) 0%, rgba(59, 130, 246, 0.05) 100%);
    max-width: 100vw;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    padding-left: 10%;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-title .highlight {
    background: linear-gradient(120deg, var(--accent-color), #3b82f6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.25rem, 3vw, 2rem);
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
}

.hero-description {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.6;
    max-width: 90%;
}

.hero-image {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    width: 100%;
    padding-right: 10%;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    cursor: pointer;
}

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

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

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--accent-color);
    color: var(--accent-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-outline:hover {
    background-color: var(--accent-color);
    color: white;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* About Section */
.about-section {
    background-color: var(--section-bg);
}

.about-text p {
    margin-bottom: 3rem;
    line-height: 1.8;
}

.skills-title {
    margin-bottom: 2rem;
    font-size: 1.8rem;
    color: var(--text-color);
}

.skills-container {
    margin-top: 2rem;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
}

.skill-card {
    background-color: white;
    padding: 1.5rem;
    border-radius: 10px;
    text-align: center;
    transition: var(--transition);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.skill-card i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

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

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

.timeline-item {
    margin-bottom: 3rem;
    position: relative;
}

.timeline-content {
    background-color: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    width: calc(50% - 30px);
    margin-left: auto;
    position: relative;
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 20px;
    left: -10px;
    width: 20px;
    height: 20px;
    background-color: var(--primary-color);
    border-radius: 50%;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-left: 0;
    margin-right: auto;
}

.timeline-item:nth-child(odd) .timeline-content::before {
    left: auto;
    right: -10px;
}

.timeline-content h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.timeline-content h4 {
    color: var(--light-text);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.timeline-date {
    font-size: 0.9rem;
    color: var(--light-text);
    margin-bottom: 1rem;
    font-style: italic;
}

.timeline-details {
    list-style-type: none;
    padding-left: 0;
}

.timeline-details li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.75rem;
    line-height: 1.5;
}

.timeline-details li::before {
    content: '•';
    color: var(--primary-color);
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.project-card {
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.project-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.project-content {
    padding: 1.5rem;
}

.project-tech {
    display: flex;
    gap: 0.5rem;
    margin: 1rem 0;
    flex-wrap: wrap;
}

.project-tech span {
    background-color: var(--section-bg);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.9rem;
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    position: relative;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    background-color: transparent;
    transition: var(--transition);
}

.form-group label {
    position: absolute;
    left: 1rem;
    top: 1rem;
    color: var(--light-text);
    transition: var(--transition);
    pointer-events: none;
}

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

.form-group input:focus + label,
.form-group textarea:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:not(:placeholder-shown) + label {
    top: -0.5rem;
    left: 0.5rem;
    font-size: 0.8rem;
    background-color: white;
    padding: 0 0.5rem;
    color: var(--primary-color);
}

/* Footer */
.footer {
    background-color: var(--text-color);
    color: white;
    padding: 2rem 0;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    text-align: center;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1rem;
}

.social-link {
    color: white;
    font-size: 1.5rem;
    transition: var(--transition);
}

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

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 1200px) {
    .hero-section {
        padding: 8rem 5% 2rem;
        gap: 2rem;
    }

    .hero-content {
        padding-left: 5%;
    }

    .hero-image {
        padding-right: 5%;
    }

    .profile-image-container {
        width: 350px;
        height: 350px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero-section {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 6rem 5% 2rem;
        gap: 3rem;
    }

    .hero-content {
        padding: 0;
    }

    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }

    .cta-buttons {
        justify-content: center;
    }

    .hero-image {
        order: -1;
        justify-content: center;
        padding-right: 0;
    }

    .profile-image-container {
        width: 280px;
        height: 280px;
    }

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

    .timeline::before {
        left: 0;
    }

    .timeline-content {
        width: calc(100% - 30px);
        margin-left: 30px !important;
    }
    
    .timeline-item:nth-child(odd) .timeline-content::before {
        left: -10px;
        right: auto;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --text-color: #f3f4f6;
        --light-text: #9ca3af;
        --background: #111827;
        --section-bg: #1f2937;
        --border-color: #374151;
    }

    .header {
        background-color: rgba(17, 24, 39, 0.95);
    }

    .skill-card,
    .project-card,
    .timeline-content {
        background-color: #1f2937;
    }

    .form-group input:focus + label,
    .form-group textarea:focus + label,
    .form-group input:not(:placeholder-shown) + label,
    .form-group textarea:not(:placeholder-shown) + label {
        background-color: #1f2937;
    }
}

.profile-image-container {
    width: 400px;
    height: 400px;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--accent-color);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.3s ease;
}

.profile-image:hover {
    transform: scale(1.05);
}