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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: #ffffff;
    color: #000000;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Navigation Bar */
.navbar {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 8px;
    padding: 10px;
    transition: all 0.3s ease;
}

.nav-buttons {
    display: flex;
    gap: 10px;
}

.nav-btn {
    padding: 8px 16px;
    background: transparent;
    color: #000;
    text-decoration: none;
    border: 1px solid #000;
    border-radius: 4px;
    font-size: 14px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.nav-btn:hover {
    background: #000;
    color: #fff;
    transform: translateY(-2px);
}

/* Main Content */
.main-content {
    margin-top: 80px;
    padding: 40px 20px;
    min-height: calc(100vh - 160px);
}

.image-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 40px;
}

.image-item {
    display: block;
    transition: all 0.3s ease;
    position: relative;
}

.image-item img {
    height: 40px;
    width: auto;
    max-width: none;
    transition: all 0.3s ease;
    pointer-events: none;
    -webkit-user-drag: none;
    -khtml-user-drag: none;
    -moz-user-drag: none;
    -o-user-drag: none;
    user-drag: none;
    display: block;
}

.image-item:hover {
    transform: scale(1.02);
}

/* Dialog Styles */
.dialog-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.dialog-overlay.active {
    opacity: 1;
    visibility: visible;
}

.dialog-box {
    background: #fff;
    padding: 40px;
    border-radius: 12px;
    text-align: center;
    min-width: 320px;
    transform: translateY(20px);
    transition: all 0.3s ease;
    border: 2px solid #000;
}

.dialog-overlay.active .dialog-box {
    transform: translateY(0);
}

.dialog-box h3 {
    margin-bottom: 20px;
    font-size: 24px;
    color: #000;
}

.dialog-box p {
    margin-bottom: 20px;
    color: #666;
}

.dialog-box input {
    width: 100%;
    padding: 12px;
    margin-bottom: 20px;
    border: 1px solid #000;
    border-radius: 4px;
    font-size: 16px;
    background: #fff;
    color: #000;
}

.dialog-buttons {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.btn {
    padding: 10px 20px;
    background: #000;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
}

.btn:hover {
    background: #333;
    transform: translateY(-2px);
}

.error-msg {
    color: #ff0000;
    margin-top: 10px;
    font-size: 14px;
}

.hidden {
    display: none;
}

/* Footer */
.footer {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    text-align: center;
}

.footer p {
    font-size: 12px;
    color: #666;
    background: rgba(255, 255, 255, 0.8);
    padding: 5px 10px;
    border-radius: 4px;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes particle {
    0% { transform: translateY(0) rotate(0deg); opacity: 1; }
    100% { transform: translateY(-100px) rotate(360deg); opacity: 0; }
}

.fade-in {
    animation: fadeIn 0.6s ease forwards;
}

/* Particle Effects */
.particle {
    position: fixed;
    width: 4px;
    height: 4px;
    background: #000;
    pointer-events: none;
    z-index: 9999;
    filter: blur(0.5px);
    opacity: 0.6;
}

/* Responsive Design */
@media (max-width: 768px) {
    .navbar {
        top: 10px;
        right: 10px;
        padding: 8px;
    }
    
    .nav-btn {
        padding: 6px 12px;
        font-size: 12px;
    }
    
    .main-content {
        margin-top: 60px;
        padding: 20px 10px;
    }
    
    .image-grid {
        grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
        gap: 15px;
    }
    
    .dialog-box {
        min-width: 280px;
        padding: 30px 20px;
    }
    
    .footer {
        bottom: 10px;
    }
    
    .footer p {
        font-size: 10px;
    }
}

@media (max-width: 480px) {
    .image-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
    }
    
    .nav-buttons {
        flex-direction: column;
        gap: 5px;
    }
}

/* Video Styles */
video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    pointer-events: none;
    -webkit-user-drag: none;
    user-drag: none;
}

/* Loading Animation */
.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10001;
    transition: opacity 0.5s ease;
}

.loading.hidden {
    opacity: 0;
    pointer-events: none;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 2px solid #000;
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}