/**
 * ReplyBridge Modern Public Styles
 * Enhanced UI with cards, modern design, and mobile-first approach
 */

/* CSS Variables for Light Mode */
:root {
    --rb-primary: #2196f3;
    --rb-primary-dark: #1976d2;
    --rb-primary-light: #42a5f5;
    --rb-secondary: #4caf50;
    --rb-success: #4caf50;
    --rb-danger: #f44336;
    --rb-warning: #ff9800;
    --rb-info: #00bcd4;
    --rb-text: #212529;
    --rb-text-secondary: #6c757d;
    --rb-background: #f8f9fa;
    --rb-surface: #ffffff;
    --rb-border: #dee2e6;
    --rb-shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --rb-shadow: 0 2px 8px rgba(0,0,0,0.1);
    --rb-shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
    --rb-radius: 8px;
    --rb-radius-lg: 12px;
    --rb-transition: all 0.2s ease;
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --rb-primary: #42a5f5;
    --rb-primary-dark: #2196f3;
    --rb-primary-light: #64b5f6;
    --rb-secondary: #66bb6a;
    --rb-success: #66bb6a;
    --rb-danger: #ef5350;
    --rb-warning: #ffa726;
    --rb-info: #26c6da;
    --rb-text: #e4e6eb;
    --rb-text-secondary: #b0b3b8;
    --rb-background: #18191a;
    --rb-surface: #242526;
    --rb-border: #3a3b3c;
    --rb-shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --rb-shadow: 0 2px 8px rgba(0,0,0,0.4);
    --rb-shadow-lg: 0 8px 24px rgba(0,0,0,0.5);
}

/* Base Styles */
.replybridge-portal {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--rb-text);
    line-height: 1.6;
}

/* Portal Container */
.replybridge-portal-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Portal Header */
.replybridge-portal-header {
    background: var(--rb-surface);
    border-radius: var(--rb-radius-lg);
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: var(--rb-shadow-sm);
}

.replybridge-portal-header h1 {
    margin: 0 0 8px 0;
    font-size: 28px;
    font-weight: 600;
    color: var(--rb-text);
}

.replybridge-portal-header p {
    margin: 0;
    color: var(--rb-text-secondary);
}

/* Tab Navigation */
.replybridge-portal-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    padding: 8px;
    background: var(--rb-surface);
    border-radius: var(--rb-radius-lg);
    box-shadow: var(--rb-shadow-sm);
}

.replybridge-tab {
    flex: 1;
    padding: 12px 24px;
    border: none;
    background: transparent;
    color: var(--rb-text-secondary);
    font-size: 16px;
    font-weight: 500;
    border-radius: var(--rb-radius);
    cursor: pointer;
    transition: var(--rb-transition);
    text-align: center;
}

.replybridge-tab:hover {
    background: var(--rb-background);
    color: var(--rb-text);
}

.replybridge-tab.active {
    /* Removed conflicting styles - handled by inline styles in portal template */
}

/* Ticket Cards Grid */
.replybridge-tickets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

/* Ticket Card */
.replybridge-ticket-card {
    background: var(--rb-surface);
    border-radius: var(--rb-radius-lg);
    padding: 20px;
    box-shadow: var(--rb-shadow-sm);
    transition: var(--rb-transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.replybridge-ticket-card:hover {
    box-shadow: var(--rb-shadow);
    transform: translateY(-2px);
}

.replybridge-ticket-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--rb-primary);
}

.replybridge-ticket-card.status-open::before {
    background: var(--rb-success);
}

.replybridge-ticket-card.status-pending::before {
    background: var(--rb-warning);
}

.replybridge-ticket-card.status-closed::before {
    background: var(--rb-danger);
}

.replybridge-ticket-card.status-resolved::before {
    background: var(--rb-info);
}

/* Ticket Card Header */
.replybridge-ticket-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 12px;
}

.replybridge-ticket-number {
    font-size: 14px;
    font-weight: 600;
    color: var(--rb-primary);
}

.replybridge-ticket-date {
    font-size: 13px;
    color: var(--rb-text-secondary);
}

/* Ticket Status Badge */
.replybridge-status-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    background: var(--rb-background);
    color: var(--rb-text);
}

.replybridge-status-badge.status-open {
    background: #e8f5e9;
    color: #2e7d32;
}

.replybridge-status-badge.status-pending {
    background: #fff3e0;
    color: #f57c00;
}

.replybridge-status-badge.status-closed {
    background: #ffebee;
    color: #c62828;
}

.replybridge-status-badge.status-resolved {
    background: #e0f2f1;
    color: #00796b;
}

[data-theme="dark"] .replybridge-status-badge.status-open {
    background: rgba(76, 175, 80, 0.2);
    color: #81c784;
}

[data-theme="dark"] .replybridge-status-badge.status-pending {
    background: rgba(255, 152, 0, 0.2);
    color: #ffb74d;
}

[data-theme="dark"] .replybridge-status-badge.status-closed {
    background: rgba(244, 67, 54, 0.2);
    color: #ef5350;
}

[data-theme="dark"] .replybridge-status-badge.status-resolved {
    background: rgba(0, 188, 212, 0.2);
    color: #4dd0e1;
}

/* Status Icons */
.status-icon {
    font-size: 14px;
}

/* Ticket Card Body */
.replybridge-ticket-subject {
    font-size: 16px;
    font-weight: 600;
    color: var(--rb-text);
    margin-bottom: 8px;
    line-height: 1.4;
}

.replybridge-ticket-excerpt {
    font-size: 14px;
    color: var(--rb-text-secondary);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Ticket Card Footer */
.replybridge-ticket-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--rb-border);
}

.replybridge-ticket-meta {
    display: flex;
    gap: 16px;
    font-size: 13px;
    color: var(--rb-text-secondary);
}

.replybridge-ticket-meta-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Empty State */
.replybridge-empty-state {
    text-align: center;
    padding: 60px 20px;
    background: var(--rb-surface);
    border-radius: var(--rb-radius-lg);
    box-shadow: var(--rb-shadow-sm);
}

.replybridge-empty-icon {
    font-size: 64px;
    color: var(--rb-text-secondary);
    margin-bottom: 16px;
}

.replybridge-empty-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--rb-text);
    margin-bottom: 8px;
}

.replybridge-empty-text {
    color: var(--rb-text-secondary);
    margin-bottom: 24px;
}

/* Thread View */
.replybridge-thread-container {
    background: var(--rb-surface);
    border-radius: var(--rb-radius-lg);
    box-shadow: var(--rb-shadow);
    overflow: hidden;
    margin-bottom: 24px;
}

.replybridge-thread-header {
    background: linear-gradient(135deg, var(--rb-primary), var(--rb-primary-dark));
    color: white;
    padding: 24px;
}

.replybridge-thread-header h2 {
    margin: 0 0 8px 0;
    font-size: 24px;
    font-weight: 600;
}

.replybridge-thread-info {
    display: flex;
    gap: 24px;
    font-size: 14px;
    opacity: 0.9;
}

/* Message Timeline */
.replybridge-messages-timeline {
    padding: 24px;
    max-height: 600px;
    overflow-y: auto;
}

.replybridge-message {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
    position: relative;
}

.replybridge-message:last-child {
    margin-bottom: 0;
}

/* Message Avatar */
.replybridge-message-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--rb-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 18px;
    flex-shrink: 0;
}

.replybridge-message.customer .replybridge-message-avatar {
    background: var(--rb-secondary);
}

.replybridge-message.system .replybridge-message-avatar {
    background: var(--rb-info);
}

/* Message Content */
.replybridge-message-content {
    flex: 1;
    background: var(--rb-background);
    border-radius: var(--rb-radius);
    padding: 16px;
    position: relative;
}

.replybridge-message.agent .replybridge-message-content {
    background: var(--rb-surface);
    border: 1px solid var(--rb-border);
}

.replybridge-message-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.replybridge-message-author {
    font-weight: 600;
    color: var(--rb-text);
}

.replybridge-message-time {
    font-size: 13px;
    color: var(--rb-text-secondary);
}

.replybridge-message-body {
    color: var(--rb-text);
    line-height: 1.6;
}

.replybridge-message-body p {
    margin: 0 0 1em 0;
}

.replybridge-message-body p:last-child {
    margin-bottom: 0;
}

/* Reply Form */
.replybridge-reply-form {
    background: var(--rb-surface);
    border-top: 1px solid var(--rb-border);
    padding: 24px;
}

.replybridge-reply-form h3 {
    margin: 0 0 16px 0;
    font-size: 18px;
    font-weight: 600;
    color: var(--rb-text);
}

.replybridge-reply-textarea {
    width: 100%;
    min-height: 120px;
    padding: 12px;
    border: 1px solid var(--rb-border);
    border-radius: var(--rb-radius);
    font-size: 15px;
    line-height: 1.5;
    resize: vertical;
    transition: var(--rb-transition);
    background: var(--rb-background);
    color: var(--rb-text);
}

.replybridge-reply-textarea:focus {
    outline: none;
    border-color: var(--rb-primary);
    box-shadow: 0 0 0 3px rgba(33, 150, 243, 0.1);
}

.replybridge-reply-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 16px;
}

/* Buttons */
.replybridge-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--rb-radius);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--rb-transition);
    text-decoration: none;
}

.replybridge-btn-primary {
    background: var(--rb-primary);
    color: white;
}

.replybridge-btn-primary:hover {
    background: var(--rb-primary-dark);
    box-shadow: var(--rb-shadow-sm);
}

.replybridge-btn-secondary {
    background: var(--rb-background);
    color: var(--rb-text);
    border: 1px solid var(--rb-border);
}

.replybridge-btn-secondary:hover {
    background: var(--rb-surface);
}

.replybridge-btn-success {
    background: var(--rb-success);
    color: white;
}

.replybridge-btn-danger {
    background: var(--rb-danger);
    color: white;
}

/* Loading States */
.replybridge-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    color: var(--rb-text-secondary);
}

.replybridge-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--rb-border);
    border-top-color: var(--rb-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 12px;
}

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

/* Mobile Styles */
@media (max-width: 768px) {
    .replybridge-portal-container {
        padding: 12px;
    }
    
    .replybridge-tickets-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .replybridge-ticket-card {
        padding: 16px;
    }
    
    .replybridge-portal-tabs {
        padding: 4px;
        gap: 4px;
    }
    
    .replybridge-tab {
        padding: 10px 16px;
        font-size: 14px;
    }
    
    .replybridge-thread-container {
        border-radius: 0;
        margin: -12px;
        margin-bottom: 0;
    }
    
    .replybridge-messages-timeline {
        max-height: calc(100vh - 300px);
        padding: 16px;
    }
    
    .replybridge-reply-form {
        position: sticky;
        bottom: 0;
        background: var(--rb-surface);
        box-shadow: 0 -2px 8px rgba(0,0,0,0.1);
        z-index: 10;
    }
    
    .replybridge-message {
        gap: 12px;
    }
    
    .replybridge-message-avatar {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
    
    .replybridge-ticket-footer {
        flex-direction: column;
        gap: 12px;
        align-items: start;
    }
}

/* Animations */
.replybridge-fade-in {
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Accessibility */
.replybridge-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus Styles */
.replybridge-portal a:focus,
.replybridge-portal button:focus,
.replybridge-portal input:focus,
.replybridge-portal select:focus,
.replybridge-portal textarea:focus {
    outline: 2px solid var(--rb-primary);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .replybridge-portal-tabs,
    .replybridge-reply-form,
    .replybridge-btn {
        display: none !important;
    }
    
    .replybridge-thread-container {
        box-shadow: none;
        border: 1px solid #000;
    }
}