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

/* Professional Font Variables */
:root {
    --font-primary: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-headings: 'Space Grotesk', 'IBM Plex Sans', sans-serif;
    --font-body: 'Fira Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
}

body {
    font-family: var(--font-body);
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* Header and Navigation */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
}

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

.nav-brand h2 {
    color: #2563eb;
    font-weight: 600;
    font-family: var(--font-headings);
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    font-family: var(--font-primary);
    letter-spacing: -0.01em;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #2563eb;
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 0 2rem;
    background: linear-gradient(135deg, #4464f5 0%, #a56703 100%);
    color: white;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
    font-family: var(--font-headings);
    letter-spacing: -0.03em;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    font-family: var(--font-body);
    line-height: 1.7;
    font-weight: 400;
}

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

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    font-family: var(--font-primary);
    letter-spacing: 0.01em;
    transition: all 0.3s ease;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: #2563eb;
    color: white;
}

.btn-primary:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: #2563eb;
}

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

.profile-placeholder {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 6rem;
    color: rgba(255, 255, 255, 0.7);
    border: 3px solid rgba(255, 255, 255, 0.2);
}

/* Section Styles */
.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 3rem;
    color: #1f2937;
    font-family: var(--font-headings);
    letter-spacing: -0.02em;
}

/* About Section */
.about {
    padding: 100px 0;
    background: #f8fafc;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-text p {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    color: #6b7280;
    font-family: var(--font-body);
    line-height: 1.8;
}

.skills {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.skill-category h3 {
    margin-bottom: 1rem;
    color: #1f2937;
    font-family: var(--font-headings);
    font-weight: 600;
    letter-spacing: -0.01em;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
}

.skill-tag {
    background: #2563eb;
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    font-family: var(--font-primary);
    letter-spacing: 0.01em;
}

/* Projects Section */
.projects {
    padding: 100px 0;
    background: white;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px rgba(0, 0, 0, 0.15);
}

.project-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(45deg, #667eea, #764ba2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 3rem;
    position: relative;
    overflow: hidden;
}

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

.project-info {
    padding: 1.5rem;
}

.project-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1f2937;
    font-family: var(--font-headings);
    letter-spacing: -0.01em;
}

.project-description {
    color: #6b7280;
    margin-bottom: 1rem;
    line-height: 1.6;
    font-family: var(--font-body);
}

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

.tech-tag {
    background: #e5e7eb;
    color: #374151;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
    font-family: var(--font-mono);
    letter-spacing: 0.02em;
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: #1f2937;
    color: white;
}

.contact .section-title {
    color: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

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

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.125rem;
    font-family: var(--font-primary);
}

.contact-item i {
    width: 24px;
    color: #2563eb;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #374151;
    border-radius: 8px;
    background: #374151;
    color: white;
    font-family: var(--font-body);
    font-size: 1rem;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #9ca3af;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #2563eb;
}

.form-message {
    margin-top: 1rem;
    padding: 12px;
    border-radius: 8px;
    font-family: var(--font-primary);
    font-size: 0.95rem;
    text-align: center;
    display: none;
}

.form-message.success {
    display: block;
    background: #10b981;
    color: white;
    border: 1px solid #059669;
}

.form-message.error {
    display: block;
    background: #ef4444;
    color: white;
    border: 1px solid #dc2626;
}

#submitBtn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 0;
    border-radius: 12px;
    width: 90%;
    max-width: 900px;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
}

.close {
    position: absolute;
    right: 20px;
    top: 20px;
    color: #aaa;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    z-index: 1;
    background: rgba(255, 255, 255, 0.9);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close:hover {
    color: #000;
}

.modal-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    padding: 2rem;
}

/* Image Slider Styles */
.image-slider {
    position: relative;
    width: 100%;
}

.slider-container {
    position: relative;
    width: 100%;
    height: 300px;
    overflow: hidden;
    border-radius: 8px;
}

.slider-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.5s ease-in-out;
}

.slider-container img:first-child {
    opacity: 1;
    transform: translateX(0);
}

.slider-container img.active {
    opacity: 1;
    transform: translateX(0);
    z-index: 2;
}

.slider-container img.prev {
    transform: translateX(-100%);
    opacity: 0;
    z-index: 1;
}

.slider-container img.next {
    transform: translateX(100%);
    opacity: 0;
    z-index: 1;
}

.slider-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 15px;
    padding: 0 10px;
}

.slider-btn {
    background: #2563eb;
    color: white;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
}

.slider-btn:hover {
    background: #1d4ed8;
    transform: scale(1.1);
}

.slider-btn:disabled {
    background: #9ca3af;
    cursor: not-allowed;
    transform: none;
}

.slider-dots {
    display: flex;
    gap: 8px;
    align-items: center;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #d1d5db;
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot.active {
    background: #2563eb;
    transform: scale(1.2);
}

.dot:hover {
    background: #6b7280;
}

.modal-info h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #1f2937;
    font-family: var(--font-headings);
    font-weight: 600;
    letter-spacing: -0.02em;
}

.modal-info p {
    color: #6b7280;
    margin-bottom: 1.5rem;
    line-height: 1.7;
    font-family: var(--font-body);
}

.modal-tech h4 {
    margin-bottom: 0.5rem;
    color: #1f2937;
    font-family: var(--font-headings);
    font-weight: 600;
}

.modal-tech .tech-stack {
    margin-bottom: 2rem;
}

.modal-links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Footer */
.footer {
    background: #111827;
    color: white;
    text-align: center;
    padding: 2rem 0;
    font-family: var(--font-primary);
    font-size: 0.95rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-links {
        display: none;
    }
    
    .hero {
        flex-direction: column;
        text-align: center;
        padding: 2rem 1rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .profile-placeholder {
        width: 200px;
        height: 200px;
        font-size: 4rem;
        margin-top: 2rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .modal-body {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .skills {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .nav {
        padding: 1rem;
    }
    
    .container {
        padding: 0 15px;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Loading Animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.project-card {
    animation: fadeInUp 0.6s ease forwards;
}