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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: #f5f7fa;
    color: #2c3e50;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-bottom: 2px solid #e0e6ed;
    margin-bottom: 20px;
}

.header h1 {
    font-size: 24px;
    color: #4A90E2;
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: #4A90E2;
    color: white;
}

.btn-primary:hover {
    background: #357ABD;
}

.btn-secondary {
    background: #95a5a6;
    color: white;
}

.btn-secondary:hover {
    background: #7f8c8d;
}

.btn-danger {
    background: #e74c3c;
    color: white;
}

.btn-danger:hover {
    background: #c0392b;
}

.btn-block {
    width: 100%;
}

/* Controls */
.controls {
    background: white;
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.search-input {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e6ed;
    border-radius: 8px;
    font-size: 16px;
    margin-bottom: 12px;
}

.search-input:focus {
    outline: none;
    border-color: #4A90E2;
}

.control-buttons {
    display: flex;
    gap: 10px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.filters {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.filter-select {
    flex: 1;
    min-width: 120px;
    padding: 10px;
    border: 2px solid #e0e6ed;
    border-radius: 8px;
    font-size: 14px;
    background: white;
}

/* Upload Progress */
.upload-progress {
    background: white;
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: #e0e6ed;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 10px;
}

.progress-fill {
    height: 100%;
    background: #4A90E2;
    transition: width 0.3s ease;
}

/* Photo Grid */
.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.photo-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.photo-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.photo-card img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    display: block;
}

.photo-info {
    padding: 12px;
}

.photo-name {
    font-size: 12px;
    font-weight: 600;
    color: #2c3e50;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 4px;
}

.photo-date {
    font-size: 11px;
    color: #95a5a6;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.9);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-content {
    max-width: 900px;
    width: 100%;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(0,0,0,0.5);
    color: white;
    border: none;
    font-size: 32px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    z-index: 1001;
}

#modalImage {
    width: 100%;
    max-height: 60vh;
    object-fit: contain;
    background: #000;
}

.modal-info {
    padding: 20px;
}

.modal-info h3 {
    margin-bottom: 8px;
    color: #2c3e50;
}

.modal-info p {
    color: #7f8c8d;
    font-size: 14px;
}

.modal-actions {
    padding: 0 20px 20px;
    display: flex;
    gap: 10px;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    padding: 20px;
}

/* Loading */
.loading {
    text-align: center;
    padding: 40px;
    font-size: 18px;
    color: #95a5a6;
}

/* Notification */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: #2ecc71;
    color: white;
    padding: 16px 24px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    z-index: 2000;
    animation: slideIn 0.3s ease;
}

.notification.error {
    background: #e74c3c;
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Hidden utility */
.hidden {
    display: none !important;
}

/* Login Page */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-box {
    background: white;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

.login-box h1 {
    text-align: center;
    color: #4A90E2;
    margin-bottom: 8px;
}

.subtitle {
    text-align: center;
    color: #7f8c8d;
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.input {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e6ed;
    border-radius: 8px;
    font-size: 16px;
}

.input:focus {
    outline: none;
    border-color: #4A90E2;
}

.error-message {
    margin-top: 16px;
    padding: 12px;
    background: #fee;
    color: #e74c3c;
    border-radius: 8px;
    text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
    .header h1 {
        font-size: 20px;
    }
    
    .photo-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 12px;
    }
    
    .photo-card img {
        height: 120px;
    }
    
    .control-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
}