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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    transition: background-color 0.3s, color 0.3s;
}

body.light {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    color: #333;
}

body.dark {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}

/* Navigation */
.nav {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 0;
    transition: background 0.3s;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: bold;
}

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

.nav-menu a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: #ffd700;
}

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

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

.theme-toggle {
    background: none;
    border: 2px solid #fff;
    color: #fff;
    padding: 0.5rem;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s;
}

.theme-toggle:hover {
    background: #fff;
    color: #333;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 2rem;
}

.hero-content {
    max-width: 800px;
}

.avatar {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    margin-bottom: 2rem;
    border: 5px solid #ffd700;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.name {
    color: #ffd700;
    font-size: 3rem;
}

.hero h2 {
    font-size: 1.5rem;
    margin: 1rem 0;
    opacity: 0.9;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    max-width: 600px;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    margin: 0.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: #ffd700;
    color: #333;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(255,215,0,0.4);
}

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

.btn-secondary:hover {
    background: #fff;
    color: #333;
}

/* Sections */
section {
    padding: 5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    position: relative;
}

h2::after {
    content: '';
    width: 50px;
    height: 4px;
    background: #ffd700;
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

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

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat h3 {
    font-size: 2.5rem;
    color: #ffd700;
}

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

.skill-card {
    background: rgba(255,255,255,0.1);
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
    transition: transform 0.3s;
}

.skill-card:hover {
    transform: translateY(-10px);
}

.skill-card i {
    font-size: 3rem;
    color: #ffd700;
    margin-bottom: 1rem;
}

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

.project-card {
    background: rgba(255,255,255,0.1);
    padding: 2rem;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
    transition: transform 0.3s;
}

.project-card:hover {
    transform: translateY(-10px);
}

.project-card a {
    color: #ffd700;
    text-decoration: none;
    font-weight: bold;
}

/* Contact */
#contact-form {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

#contact-form input,
#contact-form textarea {
    padding: 1rem;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 10px;
    background: rgba(255,255,255,0.1);
    color: inherit;
    font-family: inherit;
}

.social-links {
    text-align: center;
    margin-top: 2rem;
}

.social-links a {
    display: inline-block;
    font-size: 2rem;
    margin: 0 1rem;
    color: #fff;
    transition: color 0.3s;
}

.social-links a:hover {
    color: #ffd700;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem;
    background: rgba(0,0,0,0.2);
}

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

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: rgba(0,0,0,0.9);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 2rem 0;
    }

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

    .name {
        font-size: 2rem;
    }

    section {
        padding: 3rem 1rem;
    }
}

/* Dark mode adjustments for light body */
body.light .skill-card,
body.light .project-card {
    background: rgba(0,0,0,0.1);
    border-color: rgba(0,0,0,0.2);
}

body.light .nav {
    background: rgba(255,255,255,0.9);
}

body.light .theme-toggle {
    color: #333;
    border-color: #333;
}

body.light .theme-toggle:hover {
    background: #333;
    color: #fff;
}