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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
    transition: all 0.3s ease;
}

/* Dark theme */
body.dark-theme {
    background-color: #1a1a1a;
    color: #e5e5e5;
}

/* Dark theme: headings */
body.dark-theme h1,
body.dark-theme h2,
body.dark-theme h3,
body.dark-theme h4,
body.dark-theme .section-title {
    color: #ffffff;
}

/* Dark theme content colors */
body.dark-theme .about-text p,
body.dark-theme .project-content p,
body.dark-theme .timeline-content p,
body.dark-theme .contact-info p,
body.dark-theme .timeline-date,
body.dark-theme .skill-name,
body.dark-theme .project-content h3,
body.dark-theme .skill-category h3,
body.dark-theme .contact-info h3 {
    color: #e5e5e5;
}

body.dark-theme .stat p,
body.dark-theme .project-content p,
body.dark-theme .contact-item span {
    color: #c7c7c7;
}

/* Tech tags */
body.dark-theme .tech-tag {
    background-color: #1f2937;
    color: #93c5fd;
}

/* Inputs and textareas */
body.dark-theme .form-group input,
body.dark-theme .form-group textarea {
    background-color: #1f1f1f;
    border-color: #404040;
    color: #e5e5e5;
}

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

/* Mobile nav menu */
body.dark-theme .nav-menu {
    background-color: #1f1f1f;
    box-shadow: 0 10px 27px rgba(0, 0, 0, 0.35);
}

body.dark-theme .navbar {
    background: rgba(26, 26, 26, 0.95);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* Dark theme: navbar content */
body.dark-theme .nav-logo h2 {
    color: #93c5fd;
}

body.dark-theme .nav-link {
    color: #f5f5f5;
}

body.dark-theme .nav-link:hover {
    color: #60a5fa;
}

body.dark-theme .theme-toggle {
    border-color: #e5e5e5;
    color: #e5e5e5;
}

body.dark-theme .theme-toggle:hover {
    background-color: #60a5fa;
    border-color: #60a5fa;
}

body.dark-theme .section-title {
    color: #e5e5e5;
}

body.dark-theme .about {
    background-color: #2d2d2d;
}

body.dark-theme .projects {
    background-color: #2d2d2d;
}

body.dark-theme .contact {
    background-color: #2d2d2d;
}

body.dark-theme .skill-category,
body.dark-theme .project-card,
body.dark-theme .timeline-content,
body.dark-theme .contact-form,
body.dark-theme .stat {
    background: #2d2d2d;
    border-color: #404040;
}

body.dark-theme .contact-item {
    background: #2d2d2d;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo h2 {
    color: #2563eb;
    font-weight: 700;
    font-size: 1.5rem;
}

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

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: #2563eb;
    transition: width 0.3s ease;
}

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

.nav-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.theme-toggle {
    background: none;
    border: 2px solid #333;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    color: #333;
}

.theme-toggle:hover {
    background-color: #2563eb;
    border-color: #2563eb;
    color: white;
    transform: scale(1.1);
}

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

.bar {
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding-top: 120px;
    position: relative;
    overflow: hidden;
}

#particles-js {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-container {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
    animation: fadeInUp 1s ease-out;
    white-space: nowrap;
}

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

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.highlight {
    color: #fbbf24;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: #e5e7eb;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: #d1d5db;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

/* Make hero buttons shorter in height and wider */
.hero-buttons .btn {
    padding: 6px 40px;
    min-width: 240px;
    font-size: 1rem;
    line-height: 1.2;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn {
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    border: 2px solid transparent;
}

.btn-primary {
    background-color: #fbbf24;
    color: #1f2937;
}

.btn-primary:hover {
    background-color: #f59e0b;
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background-color: white;
    color: #1f2937;
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    color: #2563eb;
    border-color: #2563eb;
    padding: 8px 16px;
    font-size: 0.9rem;
}

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

.btn-outline i {
    margin-right: 0.5rem;
}

/* Download Resume button - custom gradient to match hero */
.btn-download {
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    color: #ffffff;
    border: none;
}

.btn-download:hover {
    filter: brightness(1.05);
    transform: translateY(-2px);
}

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

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 1.2rem;
}

.social-link:hover {
    background-color: #fbbf24;
    color: #1f2937;
    transform: translateY(-3px);
}

.profile-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: float 6s ease-in-out infinite;
    transition: all 0.3s ease;
}

.profile-card:hover {
    transform: translateY(-10px) scale(1.05);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.profile-image {
    width: 140px;
    height: 140px;
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    overflow: hidden;
}

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

.profile-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.profile-card p {
    color: #d1d5db;
}

/* Section Styles */
section {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: #1f2937;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    border-radius: 2px;
}

/* About Section */
.about {
    background-color: #f8fafc;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: #4b5563;
    line-height: 1.7;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.stat {
    text-align: center;
    padding: 1.5rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.stat h3 {
    font-size: 2rem;
    color: #2563eb;
    margin-bottom: 0.5rem;
}

.stat p {
    color: #6b7280;
    font-weight: 500;
}

.about-image {
    display: flex;
    justify-content: center;
}

.image-placeholder {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: white;
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
}

.skill-category {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    border: 1px solid #e5e7eb;
}

.skill-category h3 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: #1f2937;
}

.skill-item {
    margin-bottom: 1.5rem;
}

.skill-name {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #374151;
}

.skill-bar {
    height: 8px;
    background-color: #e5e7eb;
    border-radius: 4px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    border-radius: 4px;
    transition: width 1s ease;
    width: 0;
}

/* Projects Section */
.projects {
    background-color: #f8fafc;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 2rem;
}

.project-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #e5e7eb;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px rgba(0, 0, 0, 0.1);
}

.project-image {
    height: 200px;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: white;
}

/* Project image with media */
.project-image.project-image-has-media {
    position: relative;
    background: #0b1220;
    padding: 0;
}

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

.project-image .project-caption {
    position: absolute;
    left: 12px;
    bottom: 12px;
    background: rgba(0,0,0,0.55);
    color: #ffffff;
    padding: 6px 10px;
    border-radius: 8px;
    font-size: 0.9rem;
    line-height: 1.2;
}

.project-content {
    padding: 2rem;
}

.project-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #1f2937;
}

.project-content p {
    color: #6b7280;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tech-tag {
    background-color: #e0e7ff;
    color: #3730a3;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

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

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

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    width: 50%;
}

.timeline-item:nth-child(odd) {
    left: 0;
    padding-right: 3rem;
}

.timeline-item:nth-child(even) {
    left: 50%;
    padding-left: 3rem;
}

.timeline-marker {
    position: absolute;
    top: 0;
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    border-radius: 50%;
    border: 4px solid white;
    box-shadow: 0 0 0 4px #e5e7eb;
}

.timeline-item:nth-child(odd) .timeline-marker {
    right: -10px;
}

.timeline-item:nth-child(even) .timeline-marker {
    left: -10px;
}

.timeline-content {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    border: 1px solid #e5e7eb;
}

.timeline-content h3 {
    font-size: 1.3rem;
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.timeline-content h4 {
    color: #2563eb;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.timeline-date {
    color: #6b7280;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 1rem;
    display: block;
}

.timeline-content p {
    color: #4b5563;
    line-height: 1.6;
}

/* Contact Section */
.contact {
    background-color: #f8fafc;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #1f2937;
}

.contact-info p {
    color: #6b7280;
    margin-bottom: 2rem;
    line-height: 1.6;
}

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

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.contact-item i {
    color: #2563eb;
    font-size: 1.2rem;
    width: 20px;
}

.contact-item a {
    color: #2563eb;
    text-decoration: none;
}

.contact-item a:hover {
    text-decoration: underline;
}

.contact-form {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    font-family: inherit;
}

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

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    background-color: #1f2937;
    color: white;
    padding: 2rem 0;
}

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

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: #374151;
    border-radius: 50%;
    color: white;
    text-decoration: none;
    transition: background-color 0.3s ease;
}

.footer-social a:hover {
    background-color: #2563eb;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .hero-title {
        font-size: 2.5rem;
        white-space: normal;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

    .skills-grid {
        grid-template-columns: 1fr;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        width: 100%;
        left: 0 !important;
        padding-left: 3rem;
        padding-right: 0;
    }

    .timeline-marker {
        left: 10px !important;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 0.5rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .project-card {
        margin: 0 -10px;
    }
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Ripple Effect */
.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    transform: scale(0);
    animation: ripple-animation 0.6s linear;
    pointer-events: none;
}

@keyframes ripple-animation {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* Enhanced Button Styles */
.btn {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.6s ease;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.6s ease;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}