/**
 * Pwacom PWA Subscription UI Styles - Enhanced Version
 * 
 * @version 4.0.0 - CSS variables, logical properties, reduced motion, performance
 */

/* ============================================
   CSS Custom Properties (Variables)
   ============================================ */

:root {
    /* Modal Colors - can be overridden by JavaScript */
    --pwacom-modal-primary: #1e40af;
    --pwacom-modal-primary-hover: #1e3a8a;
    --pwacom-modal-primary-shadow: rgba(30, 64, 175, 0.3);
    --pwacom-modal-bg: #ffffff;
    --pwacom-modal-text: #1f2937;
    --pwacom-modal-text-secondary: #6b7280;
    --pwacom-modal-border: #e5e7eb;
    --pwacom-modal-overlay: rgba(0, 0, 0, 0.5);
    
    /* Status Colors */
    --pwacom-status-success: #10b981;
    --pwacom-status-success-bg: #d1fae5;
    --pwacom-status-success-text: #065f46;
    --pwacom-status-success-border: #a7f3d0;
    --pwacom-status-error: #ef4444;
    --pwacom-status-error-bg: #fee2e2;
    --pwacom-status-error-text: #991b1b;
    --pwacom-status-error-border: #fca5a5;
    
    /* Fixed Button */
    --pwacom-fixed-button-bg: #1e40af;
    --pwacom-fixed-button-text: #ffffff;
    
    /* Spacing & Sizing */
    --pwacom-modal-padding: 24px;
    --pwacom-modal-border-radius: 16px;
    --pwacom-btn-border-radius: 8px;
    
    /* Transitions */
    --pwacom-transition-duration: 0.3s;
    --pwacom-transition-timing: ease;
    
    /* Z-index layers */
    --pwacom-z-modal: 9999;
    --pwacom-z-fixed-button: 9998;
    --pwacom-z-stats-widget: 9997;
}

/* ============================================
   Subscription Modal
   ============================================ */

.pwacom-subscription-modal-overlay {
    position: fixed;
    inset: 0; /* Logical property */
    background: var(--pwacom-modal-overlay);
    z-index: var(--pwacom-z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: 
        opacity var(--pwacom-transition-duration) var(--pwacom-transition-timing),
        visibility var(--pwacom-transition-duration) var(--pwacom-transition-timing);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}

.pwacom-subscription-modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.pwacom-subscription-modal {
    background: var(--pwacom-modal-bg);
    border-radius: var(--pwacom-modal-border-radius);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    transform: scale(0.9) translateY(20px);
    transition: transform var(--pwacom-transition-duration) var(--pwacom-transition-timing);
    border: 1px solid var(--pwacom-modal-border);
    color: var(--pwacom-modal-text);
}

.pwacom-subscription-modal-overlay.show .pwacom-subscription-modal {
    transform: scale(1) translateY(0);
}

.pwacom-subscription-modal-header {
    padding: var(--pwacom-modal-padding) var(--pwacom-modal-padding) 16px;
    border-bottom: 1px solid var(--pwacom-modal-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.pwacom-subscription-modal-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--pwacom-modal-text);
    margin: 0;
    line-height: 1.2;
}

.pwacom-subscription-modal-close {
    background: transparent;
    border: none;
    color: var(--pwacom-modal-text-secondary);
    font-size: 20px;
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: 
        background-color 0.2s var(--pwacom-transition-timing),
        color 0.2s var(--pwacom-transition-timing);
    display: flex;
    align-items: center;
    justify-content: center;
    inline-size: 36px;
    block-size: 36px;
}

.pwacom-subscription-modal-close:hover {
    background: #f3f4f6;
    color: #374151;
}

.pwacom-subscription-modal-body {
    padding: var(--pwacom-modal-padding);
}

.pwacom-subscription-modal-description {
    font-size: 16px;
    color: var(--pwacom-modal-text-secondary);
    line-height: 1.6;
    margin: 0 0 24px 0;
}

/* Status Indicator */
.pwacom-subscription-status {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: #f8fafc;
    border-radius: 12px;
    margin-bottom: 24px;
    border: 1px solid #e2e8f0;
}

.pwacom-subscription-status-icon {
    inline-size: 24px;
    block-size: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
}

.pwacom-subscription-status-icon.subscribed {
    background: var(--pwacom-status-success);
    color: #ffffff;
}

.pwacom-subscription-status-icon.unsubscribed {
    background: var(--pwacom-status-error);
    color: #ffffff;
}

.pwacom-subscription-status-text {
    font-size: 14px;
    font-weight: 500;
    color: #374151;
}

/* Action Buttons */
.pwacom-subscription-modal-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    margin-top: 24px;
}

.pwacom-subscription-btn {
    padding: 12px 24px;
    border: none;
    border-radius: var(--pwacom-btn-border-radius);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: 
        background-color 0.2s var(--pwacom-transition-timing),
        transform 0.2s var(--pwacom-transition-timing),
        box-shadow 0.2s var(--pwacom-transition-timing),
        color 0.2s var(--pwacom-transition-timing);
    display: flex;
    align-items: center;
    gap: 8px;
    min-inline-size: 120px;
    justify-content: center;
}

.pwacom-subscription-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.pwacom-subscription-btn.subscribe {
    background: var(--pwacom-modal-primary);
    color: #ffffff;
}

.pwacom-subscription-btn.subscribe:hover:not(:disabled) {
    background: var(--pwacom-modal-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px var(--pwacom-modal-primary-shadow);
}

.pwacom-subscription-btn.unsubscribe {
    background: var(--pwacom-status-error);
    color: #ffffff;
}

.pwacom-subscription-btn.unsubscribe:hover:not(:disabled) {
    background: #dc2626;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

.pwacom-subscription-btn.secondary {
    background: transparent;
    color: var(--pwacom-modal-text-secondary);
    border: 1px solid #d1d5db;
}

.pwacom-subscription-btn.secondary:hover:not(:disabled) {
    background: #f9fafb;
    color: #374151;
}

/* Privacy Text */
.pwacom-subscription-privacy {
    font-size: 12px;
    color: #9ca3af;
    text-align: center;
    margin-top: 16px;
    line-height: 1.4;
}

/* Message Styles */
.pwacom-subscription-message {
    padding: 12px 16px;
    border-radius: var(--pwacom-btn-border-radius);
    margin-bottom: 16px;
    font-size: 14px;
    font-weight: 500;
}

.pwacom-subscription-message.success {
    background: var(--pwacom-status-success-bg);
    color: var(--pwacom-status-success-text);
    border: 1px solid var(--pwacom-status-success-border);
}

.pwacom-subscription-message.error {
    background: var(--pwacom-status-error-bg);
    color: var(--pwacom-status-error-text);
    border: 1px solid var(--pwacom-status-error-border);
}

/* ============================================
   Fixed Button
   ============================================ */

.pwacom-fixed-subscription-button {
    position: fixed;
    z-index: var(--pwacom-z-fixed-button);
    transition: 
        opacity var(--pwacom-transition-duration) var(--pwacom-transition-timing),
        transform var(--pwacom-transition-duration) var(--pwacom-transition-timing);
}

.pwacom-fixed-subscription-button.bottom-right {
    bottom: 20px;
    right: 20px;
}

.pwacom-fixed-subscription-button.bottom-left {
    bottom: 20px;
    left: 20px;
}

.pwacom-fixed-subscription-button.top-right {
    top: 20px;
    right: 20px;
}

.pwacom-fixed-subscription-button.top-left {
    top: 20px;
    left: 20px;
}

.pwacom-fixed-subscription-button .fixed-button {
    background: var(--pwacom-fixed-button-bg);
    color: var(--pwacom-fixed-button-text);
    border: none;
    padding: 12px 24px;
    border-radius: 50px;
    cursor: pointer;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: 
        background-color 0.2s var(--pwacom-transition-timing),
        transform 0.2s var(--pwacom-transition-timing),
        box-shadow 0.2s var(--pwacom-transition-timing);
    font-size: 14px;
}

.pwacom-fixed-subscription-button .fixed-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.pwacom-fixed-subscription-button .fixed-button:active {
    transform: translateY(0);
}

.pwacom-fixed-subscription-button .fixed-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* ============================================
   Stats Widget (Admin)
   ============================================ */

.pwacom-notification-stats-widget {
    position: fixed;
    bottom: 80px;
    inset-inline-start: 20px;
    background: white;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: var(--pwacom-z-stats-widget);
    max-inline-size: 280px;
    display: none;
    border: 1px solid var(--pwacom-modal-border);
}

.pwacom-stats-widget-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.pwacom-stats-widget-header h4 {
    margin: 0;
    font-size: 14px;
    color: #333;
}

.pwacom-stats-widget-close {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 18px;
    color: #999;
    padding: 4px;
    border-radius: 4px;
    transition: 
        background-color 0.2s var(--pwacom-transition-timing),
        color 0.2s var(--pwacom-transition-timing);
}

.pwacom-stats-widget-close:hover {
    background: #f3f4f6;
    color: #374151;
}

.pwacom-stats-widget-body {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.pwacom-stat-row {
    display: flex;
    justify-content: space-between;
    padding: 8px;
    background: #f8f9fa;
    border-radius: 4px;
}

.pwacom-stat-row span {
    font-size: 12px;
    color: #666;
}

.pwacom-stat-row strong {
    font-size: 14px;
    color: #0073aa;
}

.pwacom-stats-widget-refresh {
    inline-size: 100%;
    margin-top: 10px;
    padding: 6px;
    background: #0073aa;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    transition: background-color 0.2s var(--pwacom-transition-timing);
}

.pwacom-stats-widget-refresh:hover {
    background: #005a87;
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 768px) {
    :root {
        --pwacom-modal-padding: 20px;
    }
    
    .pwacom-subscription-modal {
        width: 95%;
        margin: 20px;
        max-height: calc(100vh - 40px);
    }

    .pwacom-subscription-modal-title {
        font-size: 20px;
    }

    .pwacom-subscription-modal-actions {
        flex-direction: column;
    }

    .pwacom-subscription-btn {
        inline-size: 100%;
    }

    .pwacom-fixed-subscription-button.bottom-right,
    .pwacom-fixed-subscription-button.bottom-left {
        bottom: 15px;
    }

    .pwacom-fixed-subscription-button.top-right,
    .pwacom-fixed-subscription-button.top-left {
        top: 15px;
    }

    .pwacom-fixed-subscription-button.bottom-right,
    .pwacom-fixed-subscription-button.top-right {
        right: 15px;
    }

    .pwacom-fixed-subscription-button.bottom-left,
    .pwacom-fixed-subscription-button.top-left {
        left: 15px;
    }

    .pwacom-fixed-subscription-button .fixed-button {
        padding: 10px 20px;
        font-size: 12px;
    }
    
    .pwacom-notification-stats-widget {
        bottom: 70px;
        max-inline-size: calc(100% - 40px);
    }
}

/* ============================================
   RTL Support (Logical Properties already used)
   ============================================ */

[dir="rtl"] .pwacom-subscription-modal-close {
    /* Additional RTL adjustments if needed */
}

/* ============================================
   Print Styles
   ============================================ */

@media print {
    .pwacom-subscription-modal-overlay,
    .pwacom-fixed-subscription-button,
    .pwacom-notification-stats-widget {
        display: none !important;
    }
}

/* ============================================
   Reduced Motion Support
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    .pwacom-subscription-modal-overlay,
    .pwacom-subscription-modal,
    .pwacom-subscription-btn,
    .pwacom-fixed-subscription-button,
    .pwacom-fixed-subscription-button .fixed-button {
        transition: none !important;
        animation: none !important;
    }
}