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

/* Theme Variables */
:root {
    /* Dark Theme (Default) */
    --bg-primary: #0f0f0f;
    --bg-secondary: #1a1a2e;
    --bg-tertiary: #0f0f0f;
    --text-primary: #e0e0e0;
    --text-secondary: #b0b0b0;
    --accent-color: #00d4ff;
    --border-color: #333;
    --card-bg: #1a1a2e;
    --nav-bg: rgba(15, 15, 15, 0.95);
    --input-bg: #0f0f0f;
    --btn-primary-bg: #00d4ff;
    --btn-primary-text: #0f0f0f;
    --btn-secondary-bg: transparent;
    --btn-secondary-text: #00d4ff;
    --btn-secondary-border: #00d4ff;
}

/* Light Theme */
[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #ffffff;
    --text-primary: #2c3e50;
    --text-secondary: #6c757d;
    --accent-color: #007bff;
    --border-color: #dee2e6;
    --card-bg: #f8f9fa;
    --nav-bg: rgba(255, 255, 255, 0.95);
    --input-bg: #ffffff;
    --btn-primary-bg: #007bff;
    --btn-primary-text: #ffffff;
    --btn-secondary-bg: transparent;
    --btn-secondary-text: #007bff;
    --btn-secondary-border: #007bff;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

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

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--accent-color);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 50px;
    height: 3px;
    background: var(--accent-color);
    margin: 10px auto;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--nav-bg);
    backdrop-filter: blur(10px);
    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: var(--accent-color);
    font-weight: 700;
}

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

.nav-menu li {
    margin-left: 2rem;
}

.nav-menu a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.theme-toggle {
    margin-left: 2rem;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: color 0.3s ease;
}

.theme-toggle:hover {
    color: var(--accent-color);
}

.admin-btn {
    margin-left: 1rem;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: color 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

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

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

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

/* Hero Section */
.hero-section {
    height: 100vh;
    display: flex;
    align-items: center;
    background-image: url('img/7.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 25% 25%, var(--accent-color) 1px, transparent 1px),
                radial-gradient(circle at 75% 75%, var(--accent-color) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.05;
    z-index: 1;
}

.hero-section::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(15, 15, 15, 0.7) 0%, rgba(26, 26, 46, 0.7) 100%);
    z-index: 1;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 2;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

.hero-content h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

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

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

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

.primary-btn:hover {
    background: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 212, 255, 0.3);
}

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

.secondary-btn:hover {
    background: var(--btn-secondary-bg);
    color: var(--btn-secondary-text);
    transform: translateY(-2px);
}

.hero-image img {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid var(--accent-color);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.3);
    transition: transform 0.3s ease;
}

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

/* About Section */
.about-section {
    padding: 5rem 0;
    background: var(--bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: start;
}

.about-text p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.8;
}

.detail-item {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.detail-item i {
    margin-right: 1rem;
    color: var(--accent-color);
    width: 20px;
}

/* Skills Section */
.skills-section {
    padding: 5rem 0;
    background: var(--bg-primary);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.skill-category {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease;
}

.skill-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.1);
}

.skill-category h3 {
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.skill-category ul {
    list-style: none;
}

.skill-category li {
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.5rem;
}

.skill-category li::before {
    content: '▹';
    color: var(--accent-color);
    position: absolute;
    left: 0;
}

/* Services Section */
.services-section {
    padding: 5rem 0;
    background: var(--bg-secondary);
}

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

.service-item {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 212, 255, 0.15);
}

.service-item i {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.service-item h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.service-item p {
    color: var(--text-secondary);
}

/* Experience Section */
.experience-section {
    padding: 5rem 0;
    background: var(--bg-secondary);
}

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

.experience-item {
    background: var(--bg-tertiary);
    padding: 2rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease;
}

.experience-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.1);
}

.experience-item h3 {
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.experience-item h4 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 500;
}

.experience-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Education Section */
.education-section {
    padding: 5rem 0;
    background: var(--bg-primary);
}

.education-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.education-item {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
}

.education-item h3 {
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.education-item h4 {
    color: var(--text-primary);
    font-weight: 500;
}

.certificates ul {
    list-style: none;
    padding: 0;
}

.certificates li {
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.certificates li::before {
    content: '✓';
    color: var(--accent-color);
    position: absolute;
    left: 0;
}

/* Portfolio Section */
.portfolio-section {
    padding: 5rem 0;
    background: var(--bg-secondary);
}

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

.portfolio-item {
    background: var(--bg-tertiary);
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease;
}

.portfolio-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.1);
}

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

.portfolio-item h3 {
    padding: 1rem;
    color: var(--accent-color);
}

.portfolio-item p {
    padding: 0 1rem 1rem;
    color: var(--text-secondary);
}

/* Testimonials Section */
.testimonials-section {
    padding: 5rem 0;
    background: var(--bg-primary);
}

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

.testimonial-item {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    position: relative;
    transition: transform 0.3s ease;
}

.testimonial-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.1);
}

.testimonial-item p {
    font-style: italic;
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
}

.testimonial-item p::before {
    content: '"';
    font-size: 2rem;
    color: var(--accent-color);
    position: absolute;
    top: 1rem;
    left: 1rem;
}

.testimonial-item p::after {
    content: '"';
    font-size: 2rem;
    color: var(--accent-color);
    position: absolute;
    bottom: 3rem;
    right: 1rem;
}

.testimonial-author {
    text-align: right;
}

.testimonial-author h4 {
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.testimonial-author span {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Contact Section */
.contact-section {
    padding: 5rem 0;
    background: var(--bg-primary);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info h3 {
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.contact-info p {
    margin-bottom: 2rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

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

.contact-item i {
    margin-right: 1rem;
    color: var(--accent-color);
    width: 20px;
}

.contact-form {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    background: var(--input-bg);
    color: var(--text-primary);
    font-family: 'Poppins', sans-serif;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.2);
}

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

.hidden {
    display: none;
}

#formMessage {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 5px;
    text-align: center;
}

/* Footer */
footer {
    background: var(--bg-secondary);
    padding: 3rem 0 1rem;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.footer-section h4 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.footer-section p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--accent-color);
}

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

.social-links a {
    font-size: 1.5rem;
    color: var(--text-secondary);
    transition: color 0.3s ease, transform 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
}

.footer-bottom p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--bg-primary);
        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;
    }

    .nav-menu li {
        margin: 1rem 0;
    }

    .theme-toggle {
        margin-left: 1rem;
    }

    .admin-btn {
        margin-left: 1rem;
    }

    .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);
    }

    .hero-container {
        flex-direction: column;
        text-align: center;
        padding: 2rem 1rem;
    }

    .hero-content h1 {
        font-size: 2.5rem;
        margin-bottom: 1rem;
    }

    .hero-content h2 {
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
    }

    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
        gap: 1rem;
    }

    .hero-image img {
        width: 200px;
        height: 200px;
        margin-top: 2rem;
    }

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

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

    .skills-grid,
    .experience-grid,
    .portfolio-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .skill-category,
    .experience-item,
    .portfolio-item,
    .testimonial-item {
        padding: 1.5rem;
    }

    .contact-form {
        padding: 1.5rem;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 10px;
        font-size: 16px; /* Prevents zoom on iOS */
    }

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

    .footer-section {
        margin-bottom: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-content h2 {
        font-size: 1.2rem;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .skills-grid,
    .experience-grid,
    .portfolio-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .skill-category,
    .experience-item,
    .portfolio-item,
    .testimonial-item {
        padding: 1rem;
    }

    .about-text p,
    .experience-item p,
    .testimonial-item p {
        font-size: 0.9rem;
        line-height: 1.6;
    }

    .contact-form {
        padding: 1rem;
    }

    .form-group {
        margin-bottom: 1rem;
    }

    .footer-section h3 {
        font-size: 1.2rem;
    }

    .footer-section p,
    .footer-section li {
        font-size: 0.9rem;
    }

    .nav-logo h2 {
        font-size: 1.5rem;
    }

    .theme-toggle,
    .admin-btn {
        font-size: 1rem;
        margin-left: 0.5rem;
    }
}

@media (max-width: 1024px) and (min-width: 769px) {
    .hero-content h1 {
        font-size: 3rem;
    }

    .hero-content h2 {
        font-size: 1.8rem;
    }

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

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

    .skills-grid,
    .experience-grid,
    .portfolio-grid,
    .testimonials-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

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

.section-title,
.about-content,
.skills-grid,
.experience-grid,
.education-content,
.portfolio-grid,
.contact-content {
    animation: fadeInUp 0.6s ease-out;
}