/**
 * Component Styles
 * Reusable UI components
 */

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-md);
    font-family: var(--font-family);
    font-weight: 500;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    background: transparent;
    color: var(--text-primary);
}

.btn:hover:not(:disabled) {
    background: var(--bg-hover);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--accent-blue);
    color: var(--text-primary);
}

.btn-primary:hover:not(:disabled) {
    background: var(--accent-blue-hover);
}

.btn-danger {
    background: var(--accent-red);
    color: var(--text-primary);
}

.btn-danger:hover:not(:disabled) {
    background: var(--accent-red-hover);
}

.btn-block {
    width: 100%;
}

.btn-icon {
    padding: var(--spacing-sm);
    width: 32px;
    height: 32px;
}

/* Form Elements */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-md);
    font-family: var(--font-family);
    color: var(--text-primary);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

/* Error Message */
.error-message {
    padding: var(--spacing-sm) var(--spacing-md);
    margin-bottom: var(--spacing-md);
    background: rgba(204, 0, 0, 0.2);
    border: 1px solid var(--accent-red);
    border-radius: var(--border-radius);
    color: #ff6b6b;
    font-size: var(--font-size-sm);
}

/* Success Message */
.success-message {
    padding: var(--spacing-sm) var(--spacing-md);
    margin-bottom: var(--spacing-md);
    background: rgba(0, 102, 204, 0.2);
    border: 1px solid var(--accent-blue);
    border-radius: var(--border-radius);
    color: var(--text-link);
    font-size: var(--font-size-sm);
}

/* Login Page */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: var(--spacing-lg);
}

.login-box {
    background: var(--bg-secondary);
    border-radius: 8px;
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
}

.login-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.login-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-md);
}

.login-header h1 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.login-header p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.login-form {
    margin-top: var(--spacing-lg);
}

/* Preview Modal */
.preview-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.preview-modal.active {
    opacity: 1;
    visibility: visible;
}

.preview-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
}

.preview-content {
    position: relative;
    z-index: 1;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    max-width: 90vw;
    max-height: 90vh;
    width: 100%;
    display: flex;
    flex-direction: column;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.preview-modal.active .preview-content {
    transform: scale(1);
}

.preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.preview-title {
    margin: 0;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    padding-right: var(--spacing-md);
}

.preview-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-shrink: 0;
}

.preview-btn-download,
.preview-btn-close {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius);
    transition: background var(--transition-fast);
    font-size: 18px;
}

.preview-btn-download:hover,
.preview-btn-close:hover {
    background: var(--bg-hover);
}

.preview-body {
    padding: var(--spacing-lg);
    overflow: auto;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    max-height: calc(90vh - 80px);
}

.preview-body img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.preview-body video {
    max-width: 100%;
    max-height: 100%;
}

.preview-body audio {
    width: 100%;
    max-width: 600px;
}

.preview-body pre {
    width: 100%;
    margin: 0;
    padding: var(--spacing-md);
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    overflow: auto;
    max-height: 70vh;
}

.preview-body code {
    font-family: 'Courier New', Courier, monospace;
    font-size: 14px;
    line-height: 1.5;
    white-space: pre-wrap;
    word-break: break-word;
}

.preview-loading {
    text-align: center;
    color: var(--text-secondary);
    padding: var(--spacing-xl);
}

.preview-error {
    text-align: center;
    color: var(--accent-red);
    padding: var(--spacing-xl);
}

/* Responsive */
@media (max-width: 768px) {
    .login-container {
        padding: var(--spacing-md);
    }
    
    .login-box {
        padding: var(--spacing-lg);
    }
    
    .preview-content {
        max-width: 95vw;
        max-height: 95vh;
    }
    
    .preview-header {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .preview-title {
        font-size: var(--font-size-md);
    }
    
    .preview-body {
        padding: var(--spacing-md);
        min-height: 150px;
    }
}