/* ==========================================================================
   Reverse2PDF Pro - Frontend Styles
   ========================================================================== */

/* CSS Variables */
:root {
    --r2pdf-primary: #6366f1;
    --r2pdf-primary-hover: #4f46e5;
    --r2pdf-success: #10b981;
    --r2pdf-warning: #f59e0b;
    --r2pdf-danger: #ef4444;
    --r2pdf-white: #ffffff;
    --r2pdf-gray-100: #f3f4f6;
    --r2pdf-gray-200: #e5e7eb;
    --r2pdf-gray-300: #d1d5db;
    --r2pdf-gray-500: #6b7280;
    --r2pdf-gray-700: #374151;
    --r2pdf-gray-900: #111827;
    
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --radius: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* PDF Generation Forms */
.reverse2pdf-form {
    max-width: 600px;
    margin: 20px 0;
    padding: 24px;
    background: var(--r2pdf-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--r2pdf-gray-200);
}

.reverse2pdf-form-group {
    margin-bottom: 20px;
}

.reverse2pdf-form-label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    color: var(--r2pdf-gray-700);
    font-size: 0.875rem;
}

.reverse2pdf-form-input,
.reverse2pdf-form-select,
.reverse2pdf-form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--r2pdf-gray-200);
    border-radius: var(--radius);
    font-size: 1rem;
    transition: var(--transition);
    background: var(--r2pdf-white);
}

.reverse2pdf-form-input:focus,
.reverse2pdf-form-select:focus,
.reverse2pdf-form-textarea:focus {
    border-color: var(--r2pdf-primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.reverse2pdf-form-textarea {
    resize: vertical;
    min-height: 100px;
}

/* Buttons */
.reverse2pdf-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    line-height: 1;
    font-family: inherit;
}

.reverse2pdf-btn-primary {
    background: linear-gradient(135deg, var(--r2pdf-primary) 0%, #4f46e5 100%);
    color: white;
    box-shadow: var(--shadow);
}

.reverse2pdf-btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
    color: white;
    text-decoration: none;
}

.reverse2pdf-btn-secondary {
    background: var(--r2pdf-white);
    color: var(--r2pdf-gray-700);
    border: 2px solid var(--r2pdf-gray-200);
}

.reverse2pdf-btn-secondary:hover {
    border-color: var(--r2pdf-primary);
    color: var(--r2pdf-primary);
    text-decoration: none;
}

.reverse2pdf-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* PDF Generation Trigger */
.reverse2pdf-generate {
    position: relative;
    overflow: hidden;
}

.reverse2pdf-generate::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.reverse2pdf-generate:hover::before {
    left: 100%;
}

/* Download Links */
.reverse2pdf-download-link {
    margin: 16px 0;
    padding: 16px;
    background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
    border: 1px solid #a7f3d0;
    border-radius: var(--radius);
    text-align: center;
    animation: slideInDown 0.3s ease;
}

.reverse2pdf-download-link a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #065f46;
    text-decoration: none;
    font-weight: 600;
}

.reverse2pdf-download-link a:hover {
    color: #047857;
    text-decoration: underline;
}

/* Notifications */
.reverse2pdf-notification {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin: 16px 0;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    animation: slideInDown 0.3s ease;
}

.reverse2pdf-notification.success {
    background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.reverse2pdf-notification.error {
    background: linear-gradient(135deg, #fef2f2 0%, #fecaca 100%);
    color: #991b1b;
    border: 1px solid #fca5a5;
}

.reverse2pdf-notification.warning {
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
    color: #92400e;
    border: 1px solid #fcd34d;
}

.reverse2pdf-notification.info {
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    color: #1e40af;
    border: 1px solid #93c5fd;
}

/* Loading States */
.reverse2pdf-loading {
    position: relative;
    opacity: 0.7;
    pointer-events: none;
}

.reverse2pdf-loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.8), transparent);
    animation: shimmer 1.5s infinite;
}

.reverse2pdf-spin {
    animation: spin 1s linear infinite;
}

/* PDF Viewer */
.reverse2pdf-viewer {
    max-width: 100%;
    margin: 20px 0;
    border: 1px solid var(--r2pdf-gray-200);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.reverse2pdf-viewer iframe {
    width: 100%;
    height: 600px;
    border: none;
}

/* Shortcode Styles */
.reverse2pdf-shortcode {
    margin: 16px 0;
}

.reverse2pdf-field-value {
    display: inline-block;
    padding: 4px 8px;
    background: var(--r2pdf-gray-100);
    border-radius: 4px;
    font-family: monospace;
    font-size: 0.875rem;
    color: var(--r2pdf-gray-700);
}

/* Progress Indicators */
.reverse2pdf-progress {
    width: 100%;
    height: 8px;
    background: var(--r2pdf-gray-200);
    border-radius: 4px;
    overflow: hidden;
    margin: 12px 0;
}

.reverse2pdf-progress-bar {
    height: 100%;
    background: linear-gradient(135deg, var(--r2pdf-primary) 0%, #4f46e5 100%);
    border-radius: 4px;
    transition: width 0.3s ease;
    animation: shimmer 2s infinite;
}

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

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 768px) {
    .reverse2pdf-form {
        padding: 20px;
        margin: 16px 0;
    }
    
    .reverse2pdf-btn {
        padding: 10px 20px;
        font-size: 0.8125rem;
    }
    
    .reverse2pdf-viewer iframe {
        height: 400px;
    }
}

@media (max-width: 480px) {
    .reverse2pdf-form {
        padding: 16px;
    }
    
    .reverse2pdf-form-input,
    .reverse2pdf-form-select,
    .reverse2pdf-form-textarea {
        padding: 10px 14px;
    }
}

/* Print Styles */
@media print {
    .reverse2pdf-btn,
    .reverse2pdf-notification,
    .reverse2pdf-form {
        display: none !important;
    }
}

/* Accessibility */
.reverse2pdf-btn:focus,
.reverse2pdf-form-input:focus,
.reverse2pdf-form-select:focus,
.reverse2pdf-form-textarea:focus {
    outline: 2px solid var(--r2pdf-primary);
    outline-offset: 2px;
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .reverse2pdf-btn,
    .reverse2pdf-form-input,
    .reverse2pdf-notification {
        border-width: 3px;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}