/* Base Styles and Variables */
:root {
    --primary-color: #3b82f6; /* Blue */
    --primary-dark: #2563eb;
    --secondary-color: #f9fafb; /* Light Gray */
    --text-color: #1f2937;
    --text-light: #6b7280;
    --bg-color: #ffffff;
    --bg-alt: #f3f4f6;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
    --border-radius: 10px;
    --transition: all 0.3s ease;
    --max-width: 1200px;
}

/* Reset and General Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

.container {
    width: 90%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1rem;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 2.5rem;
    position: relative;
}

h2:after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 3px;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1.5rem;
}

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

a:hover {
    color: var(--primary-dark);
}

ul {
    list-style: none;
}

section {
    padding: 5rem 0;
}

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

/* Button Styles */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    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(--shadow);
}

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

.btn.secondary:hover {
    background-color: rgba(59, 130, 246, 0.1);
    transform: translateY(-2px);
}

/* Header & 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, 0.05);
    transition: var(--transition);
}

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

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

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

.desktop-nav a {
    color: var(--text-color);
    font-weight: 500;
    position: relative;
}

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

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

.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-color);
}

.mobile-nav {
    display: none;
    position: absolute;
    top: 80px;
    left: 0;
    width: 100%;
    background-color: var(--bg-color);
    padding: 1rem 0;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.05);
    transform: translateY(-100%);
    opacity: 0;
    transition: var(--transition);
}

.mobile-nav.active {
    transform: translateY(0);
    opacity: 1;
}

.mobile-nav ul {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 0 1rem;
}

.mobile-nav a {
    display: block;
    padding: 0.5rem 0;
    color: var(--text-color);
    font-weight: 500;
}

/* Hero Section */
.hero {
    padding-top: 10rem;
    padding-bottom: 3rem;
    text-align: center;
    background-color: var(--bg-alt);
    position: relative;
    overflow: hidden;
}

.hero:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.07) 0%, rgba(255, 255, 255, 0) 100%);
    pointer-events: none;
}

.hero h1 {
    margin-bottom: 1.5rem;
    font-size: clamp(2rem, 5vw, 3.5rem);
}

.hero .subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

.profession {
    position: relative;
    display: inline-block;
}

.profession:after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 0;
    width: 100%;
    height: 8px;
    background-color: rgba(59, 130, 246, 0.2);
    z-index: -1;
    border-radius: 4px;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

/* Projects Section */
.projects {
    background-color: var(--bg-color);
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

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

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.project-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 9;
}

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

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

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.project-image:hover .project-overlay {
    opacity: 1;
}

.project-info {
    padding: 1.5rem;
}

.project-info h3 {
    margin-bottom: 0.5rem;
}

.project-info p {
    color: var(--text-light);
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tags span {
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--primary-color);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

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

.about-content {
    display: flex;
    align-items: center;
    gap: 3rem;
}

.about-image {
    flex: 1;
}

.about-image img {
    border-radius: 50%;
    box-shadow: var(--shadow);
}

.about-text {
    flex: 2;
}

.about h3 {
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.skills span {
    background-color: white;
    color: var(--text-color);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    font-weight: 500;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.skills span:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    background-color: var(--primary-color);
    color: white;
}

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

.contact-content {
    display: flex;
    gap: 3rem;
}

.contact-info, .contact-form {
    flex: 1;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

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

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

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #e5e7eb;
    border-radius: var(--border-radius);
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

/* Footer */
footer {
    background-color: var(--bg-alt);
    padding: 2rem 0;
}

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

/* Back to Top Button */
#backToTop {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 100;
}

#backToTop.visible {
    opacity: 1;
    visibility: visible;
}

#backToTop:hover {
    background-color: var(--primary-dark);
    transform: translateY(-5px);
}

/* Responsive Design */
@media (max-width: 992px) {
    .about-content {
        flex-direction: column;
        text-align: center;
    }
    
    .about-image {
        margin-bottom: 2rem;
    }
    
    .skills {
        justify-content: center;
    }
    
    .contact-content {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    section {
        padding: 4rem 0;
    }
    
    .desktop-nav {
        display: none;
    }
    
    .mobile-nav-toggle {
        display: block;
    }
    
    .mobile-nav {
        display: block;
    }
    
    .project-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    footer .container {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

/* Animation Styles */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero h1, .hero p, .cta-buttons {
    animation: fadeIn 0.6s ease-out forwards;
}

.hero p {
    animation-delay: 0.2s;
}

.cta-buttons {
    animation-delay: 0.4s;
}

/* Custom Cursor */
html {
    cursor: url("data:image/svg+xml,%3Csvg width='24' height='24' viewBox='0 0 24 24' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='12' cy='12' r='10' stroke='%233b82f6' stroke-width='2' fill-opacity='0.2' fill='%233b82f6'/%3E%3C/svg%3E"), auto;
}

a, button, input[type="submit"], .project-card {
    cursor: url("data:image/svg+xml,%3Csvg width='24' height='24' viewBox='0 0 24 24' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='12' cy='12' r='10' fill='%233b82f6'/%3E%3C/svg%3E"), pointer;
}