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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

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

/* Header */
header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    color: #667eea;
    font-size: 1.8rem;
    font-weight: bold;
}

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

.nav-menu li {
    white-space: nowrap;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
    font-size: 0.95rem;
}

.nav-menu a:hover {
    color: #667eea;
}

/* Hero Section */
.hero {
    margin-top: 80px;
    padding: 4rem 0;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-text h1 {
    font-size: 3rem;
    color: white;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-text p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

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

.hero-image img {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    object-fit: cover;
    object-position: center;
    border: 5px solid white;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* Birthday Highlight Section */
.birthday-highlight {
    padding: 3rem 0;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    border-radius: 20px;
    margin: 2rem 20px;
}

.birthday-content {
    text-align: center;
    color: white;
}

.birthday-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.birthday-announcement {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

.birthday-subtext {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.95);
    font-style: italic;
}

.wish-form-container {
    margin-top: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.wish-form-container iframe {
    display: block;
    border: none;
}

/* Gallery Section */
.gallery {
    background: rgba(255, 255, 255, 0.95);
    margin: 2rem 0;
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.gallery-item {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.gallery-item:hover {
    transform: translateY(-5px);
}

.gallery-item img {
    width: 100%;
    height: 300px;
    object-fit: contain;
    object-position: center;
    background: #f5f5f5;
    display: block;
}

.gallery-caption {
    padding: 1rem;
    text-align: center;
    color: #667eea;
    font-weight: bold;
}

/* Sections */
section {
    padding: 4rem 0;
}

.about, .achievements, .hobbies, .contact {
    background: rgba(255, 255, 255, 0.95);
    margin: 2rem 0;
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #667eea;
}

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

.about-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.about-card:hover {
    transform: translateY(-5px);
}

.about-card h3 {
    color: #667eea;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.about-card ul {
    list-style: none;
}

.about-card li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #eee;
}

.about-card li:last-child {
    border-bottom: none;
}

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

.achievement-card {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: transform 0.3s ease;
}

.achievement-card:hover {
    transform: translateY(-5px);
}

.achievement-card h3 {
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

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

.hobby-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

.hobby-card:hover {
    transform: translateY(-5px);
}

.hobby-card h3 {
    color: #667eea;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

/* Contact Section */
.contact {
    text-align: center;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 2rem;
}

.social-links a {
    display: inline-block;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    transition: transform 0.3s ease;
}

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

/* Footer */
footer {
    background: rgba(0, 0, 0, 0.8);
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: 2rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem 10px;
    }
    
    .logo {
        font-size: 1.5rem;
    }
    
    .nav-menu {
        gap: 0.8rem;
        justify-content: center;
        font-size: 0.85rem;
    }
    
    .nav-menu a {
        font-size: 0.85rem;
        padding: 0.3rem 0.5rem;
    }
    
    .birthday-highlight {
        margin: 2rem 10px;
        padding: 2rem 1rem;
    }
    
    .birthday-content h2 {
        font-size: 1.8rem;
    }
    
    .birthday-announcement {
        font-size: 1.1rem;
    }
    
    .birthday-subtext {
        font-size: 1rem;
    }
    
    .wish-form-container {
        margin: 2rem 0.5rem;
    }
    
    .wish-form-container iframe {
        height: 900px;
    }
    
    .hero {
        margin-top: 120px;
        padding: 2rem 0;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: 2rem;
    }
    
    .hero-text p {
        font-size: 1rem;
    }
    
    .hero-image img {
        width: 200px;
        height: 200px;
    }
    
    section {
        padding: 2rem 0;
    }
    
    section h2 {
        font-size: 1.8rem;
        margin-bottom: 2rem;
    }
    
    .about-grid,
    .achievements-grid,
    .hobbies-grid,
    .gallery-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .social-links {
        flex-direction: column;
        align-items: center;
    }
}