:root {
    --primary-color: #FF6B9D;
    --secondary-color: #4ECDC4;
    --accent-color: #FFE66D;
    --dark-bg: #1a1a1a;
    --light-bg: #ffffff;
    --text-dark: #333333;
    --text-light: #f0f0f0;
    --border-color: #e0e0e0;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

body.dark-mode {
    --light-bg: #1a1a1a;
    --text-dark: #f0f0f0;
    --border-color: #444;
    background-color: var(--dark-bg);
    color: var(--text-dark);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--light-bg);
    transition: background-color 0.3s, color 0.3s;
}

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

/* Navigation */
.navbar {
    background-color: var(--light-bg);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: background-color 0.3s;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.nav-brand {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

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

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

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-dark);
}

.theme-toggle {
    background: none;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    font-size: 18px;
    cursor: pointer;
    transition: all 0.3s;
}

.theme-toggle:hover {
    transform: scale(1.1);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 100px 20px;
    text-align: center;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.hero-content {
    text-align: left;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 10px;
    animation: slideInLeft 0.6s ease;
}

.tagline {
    font-size: 24px;
    margin-bottom: 20px;
    opacity: 0.95;
}

.hero-description {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero-emoji {
    font-size: 120px;
    animation: bounce 2s infinite;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 107, 157, 0.4);
}

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

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

/* About Section */
.about {
    padding: 80px 20px;
    background-color: var(--light-bg);
}

.about h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: var(--primary-color);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.about-card {
    background: var(--light-bg);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid var(--border-color);
}

.about-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.about-card .icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.about-card h3 {
    color: var(--secondary-color);
    margin-bottom: 15px;
}

/* Projects Section */
.projects {
    padding: 80px 20px;
    background-color: var(--light-bg);
}

.projects h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: var(--primary-color);
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.project-card {
    background: var(--light-bg);
    padding: 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: all 0.3s;
    border: 1px solid var(--border-color);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
    border-color: var(--primary-color);
}

.project-icon {
    font-size: 40px;
    margin-bottom: 15px;
}

.project-card h3 {
    color: var(--secondary-color);
    margin-bottom: 10px;
}

.project-link {
    display: inline-block;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    margin-top: 15px;
    transition: all 0.3s;
}

.project-link:hover {
    transform: translateX(5px);
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    color: white;
    padding: 60px 20px;
    text-align: center;
}

.cta h2 {
    font-size: 36px;
    margin-bottom: 10px;
}

.cta p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.95;
}

.cta-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Contact Section */
.contact {
    padding: 80px 20px;
    background-color: var(--light-bg);
}

.contact h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: var(--primary-color);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.contact-item {
    text-align: center;
    padding: 30px;
    background: var(--light-bg);
    border-radius: 10px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.contact-item h3 {
    color: var(--secondary-color);
    margin-bottom: 10px;
}

.contact-item a {
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.3s;
}

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

/* Footer */
footer {
    background-color: var(--dark-bg);
    color: var(--text-light);
    padding: 40px 20px;
    text-align: center;
}

footer .container {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 30px;
    align-items: center;
}

.footer-links {
    display: flex;
    gap: 20px;
    justify-content: flex-end;
}

.footer-links a {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--primary-color);
}

/* Animations */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        flex-direction: column;
        gap: 15px;
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background-color: var(--light-bg);
        padding: 20px;
        box-shadow: var(--shadow);
    }

    .nav-menu.active {
        display: flex;
    }

    .menu-toggle {
        display: block;
    }

    .hero .container {
        grid-template-columns: 1fr;
        padding: 40px 20px;
    }

    .hero h1 {
        font-size: 36px;
    }

    .hero-emoji {
        font-size: 80px;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .hero-content {
        text-align: center;
    }

    .about h2, .projects h2, .contact h2 {
        font-size: 28px;
    }

    footer .container {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .footer-links {
        justify-content: center;
        flex-wrap: wrap;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .cta-buttons .btn {
        width: 100%;
    }
}