/**
 * Tempmails Frontend Styles
 * TempMails Design System - Premium SaaS UI
 * 
 * @package Tempmails
 * @since 1.0.6 (Fixes Modal & List Visibility)
 */

/* ==================== GOOGLE FONTS + MATERIAL ICONS ==================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Poppins:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@20..48,100..700,0..1,-50..200');

/* ==================== DESIGN SYSTEM TOKENS (DEFAULT SKIN) ==================== */
:root {
    /* --- CATEGORY A: COLORS --- */
    --tm-accent-primary: #2563EB;      
    --tm-accent-hover: #3B82F6;        
    --tm-accent-light: #DBEAFE;        
    
    --tm-bg-surface: #F8FAFC;          
    --tm-bg-panel: #FFFFFF;            
    
    --tm-text-primary: #0F172A;        
    --tm-text-muted: #64748B;          
    
    --tm-border-color: #E2E8F0;        
    
    --tm-status-success: #22C55E;
    --tm-status-success-light: #DCFCE7;
    --tm-status-warning: #F59E0B;
    --tm-status-warning-light: #FEF3C7;
    --tm-status-error: #EF4444;
    --tm-status-error-light: #FEE2E2;
    --tm-status-info: #38BDF8;
    --tm-status-info-light: #E0F2FE;
    
    /* --- CATEGORY B: TYPOGRAPHY --- */
    --tm-font-heading: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
    --tm-font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --tm-font-mono: 'JetBrains Mono', 'Courier New', monospace;
    
    --tm-text-xs: 12px;
    --tm-text-sm: 14px;
    --tm-text-base: 16px;
    --tm-text-lg: 18px;
    --tm-text-xl: 20px;
    --tm-text-xxl: 24px;
    
    --tm-weight-normal: 400;
    --tm-weight-medium: 500;
    --tm-weight-bold: 600;
    --tm-weight-black: 800;

    /* --- CATEGORY C: DIMENSIONS & SIZES --- */
    --tm-size-input-height: 48px;
    --tm-size-button-height: 44px;
    --tm-size-icon: 20px;
    --tm-width-max: 100%;

    --tm-radius-sm: 8px;
    --tm-radius-md: 12px;
    --tm-radius-lg: 16px;
    --tm-radius-xl: 24px;
    
    /* --- CATEGORY D: SPACING --- */
    --tm-space-4: 4px;
    --tm-space-8: 8px;
    --tm-space-12: 12px;
    --tm-space-16: 16px;
    --tm-space-24: 24px;
    --tm-space-32: 32px;
    --tm-space-48: 48px;
    
    /* --- CATEGORY E: COMPONENT STYLES --- */
    --tm-shadow-card: 0 10px 25px rgba(15, 23, 42, 0.06);
    --tm-shadow-modal: 0 20px 40px rgba(15, 23, 42, 0.12);
    --tm-shadow-hover: 0 15px 35px rgba(15, 23, 42, 0.10);
    
    --tm-transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --tm-transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==================== MATERIAL ICONS CONFIGURATION ==================== */
.material-symbols-outlined {
    font-family: 'Material Symbols Outlined';
    font-weight: normal;
    font-style: normal;
    font-size: var(--tm-size-icon);
    line-height: 1;
    letter-spacing: normal;
    text-transform: none;
    display: inline-block;
    white-space: nowrap;
    word-wrap: normal;
    direction: ltr;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    font-feature-settings: 'liga';
}

/* ==================== GLOBAL RESET ==================== */
.tempmails-inbox-wrapper {
    font-family: var(--tm-font-family);
    font-size: var(--tm-text-base);
    line-height: 1.6;
    color: var(--tm-text-primary);
    background: var(--tm-bg-surface);
    margin: 0;
    padding: var(--tm-space-24);
    box-sizing: border-box;
    max-width: var(--tm-width-max);
}

.tempmails-inbox-wrapper *,
.tempmails-inbox-wrapper *::before,
.tempmails-inbox-wrapper *::after {
    box-sizing: border-box;
}

/* ==================== EMAIL SECTION ==================== */
.tempmails-email-section {
    background: var(--tm-bg-panel);
    border-radius: var(--tm-radius-lg);
    padding: var(--tm-space-24);
    margin-bottom: var(--tm-space-24);
    box-shadow: var(--tm-shadow-card);
}

.tempmails-email-display label {
    display: block;
    font-family: var(--tm-font-heading);
    font-size: var(--tm-text-xs);
    font-weight: var(--tm-weight-bold);
    color: var(--tm-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--tm-space-12);
}

.tempmails-email-input-group {
    display: flex;
    gap: var(--tm-space-12);
    flex-wrap: wrap;
}

.tempmails-email-input {
    flex: 1;
    min-width: 280px;
    height: var(--tm-size-input-height);
    font-family: var(--tm-font-mono);
    font-size: 15px;
    font-weight: var(--tm-weight-medium);
    padding: 0 var(--tm-space-16);
    border: 2px solid var(--tm-border-color);
    border-radius: var(--tm-radius-md);
    background: var(--tm-bg-surface);
    color: var(--tm-text-primary);
    transition: all var(--tm-transition-base);
    outline: none;
    display: flex;
    align-items: center;
}

.tempmails-email-input:focus {
    border-color: var(--tm-accent-primary);
    box-shadow: 0 0 0 4px var(--tm-accent-light);
    background: var(--tm-bg-panel);
}

/* ==================== BUTTONS ==================== */
.tempmails-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--tm-space-8);
    font-family: var(--tm-font-heading);
    font-size: var(--tm-text-sm);
    font-weight: var(--tm-weight-bold);
    padding: 0 24px;
    height: var(--tm-size-input-height);
    border: none;
    border-radius: var(--tm-radius-md);
    cursor: pointer;
    transition: all var(--tm-transition-base);
    text-transform: none;
    white-space: nowrap;
    box-shadow: var(--tm-shadow-card);
}

.tempmails-btn:hover {
    box-shadow: var(--tm-shadow-hover);
    transform: translateY(-2px);
}

.tempmails-btn:active {
    transform: translateY(0);
    box-shadow: var(--tm-shadow-card);
}

.tempmails-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}

.tempmails-btn-primary {
    background: var(--tm-accent-primary);
    color: white;
}

.tempmails-btn-primary:hover {
    background: var(--tm-accent-hover);
}

.tempmails-btn-secondary {
    background: var(--tm-bg-surface);
    color: var(--tm-text-primary);
    border: 2px solid var(--tm-border-color);
}

.tempmails-btn-secondary:hover {
    border-color: var(--tm-accent-primary);
    color: var(--tm-accent-primary);
}

.tempmails-btn-danger {
    background: var(--tm-status-error);
    color: white;
}

.tempmails-btn-danger:hover {
    background: #DC2626;
}

.tempmails-btn-link {
    background: transparent;
    color: var(--tm-accent-primary);
    box-shadow: none;
    padding: 8px 16px;
    text-decoration: none;
    height: auto;
}

.tempmails-btn-link:hover {
    background: var(--tm-accent-light);
    box-shadow: none;
    transform: none;
}

.tempmails-btn .material-symbols-outlined {
    font-size: var(--tm-size-icon);
}

/* ==================== NOTIFICATION ==================== */
.tempmails-notification {
    background: var(--tm-status-success-light);
    color: #FFFFFF;
    padding: var(--tm-space-16);
    border-radius: var(--tm-radius-sm);
    margin-top: var(--tm-space-16);
    display: flex;
    align-items: center;
    gap: var(--tm-space-12);
    animation: slideDown var(--tm-transition-base);
    box-shadow: var(--tm-shadow-card);
    border-left: 4px solid var(--tm-status-success);
    font-family: var(--tm-font-family);
    font-size: var(--tm-text-sm);
    font-weight: var(--tm-weight-medium);
}

.tempmails-notification .material-symbols-outlined {
    color:#FFFFFF var(--tm-status-success);
    flex-shrink: 0;
    font-size: 24px;
}

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

/* ==================== DOMAINS LIST ==================== */
.tempmails-domains-list {
    margin-top: var(--tm-space-24);
    padding-top: var(--tm-space-24);
    border-top: 2px solid var(--tm-bg-surface);
}

.tempmails-domains-label {
    font-family: var(--tm-font-heading);
    font-size: var(--tm-text-xs);
    font-weight: var(--tm-weight-bold);
    color: var(--tm-text-muted);
    margin-bottom: var(--tm-space-12);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tempmails-domains {
    display: flex;
    flex-wrap: wrap;
    gap: var(--tm-space-8);
    list-style: none;
    margin: 0;
    padding: 0;
}

.tempmails-domains li {
    display: inline-block;
}

.tempmails-domains code {
    display: inline-block;
    background: var(--tm-bg-surface);
    color: var(--tm-text-primary);
    padding: 6px 12px;
    border-radius: var(--tm-radius-sm);
    font-family: var(--tm-font-mono);
    font-size: 13px;
    font-weight: var(--tm-weight-medium);
    border: 1px solid var(--tm-border-color);
}

/* ==================== STATS BAR ==================== */
.tempmails-stats {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--tm-space-16);
    padding: var(--tm-space-16) var(--tm-space-24);
    background: var(--tm-bg-panel);
    border-radius: var(--tm-radius-md);
    margin-bottom: var(--tm-space-24);
    flex-wrap: wrap;
    box-shadow: var(--tm-shadow-card);
}

.tempmails-stat-item {
    display: flex;
    align-items: center;
    gap: var(--tm-space-12);
}

.tempmails-stat-label {
    font-family: var(--tm-font-family);
    font-size: var(--tm-text-sm);
    font-weight: var(--tm-weight-medium);
    color: var(--tm-text-muted);
}

.tempmails-stat-value {
    font-family: var(--tm-font-heading);
    font-size: var(--tm-text-xxl);
    font-weight: var(--tm-weight-black);
    color: var(--tm-text-primary);
}

.tempmails-stat-value.tempmails-unread {
    color: var(--tm-accent-primary);
}

/* ==================== LOADING ==================== */
.tempmails-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--tm-space-12);
    padding: var(--tm-space-48);
    background: var(--tm-bg-panel);
    border-radius: var(--tm-radius-md);
    color: var(--tm-text-muted);
    font-family: var(--tm-font-family);
    font-size: var(--tm-text-sm);
    box-shadow: var(--tm-shadow-card);
}

.tempmails-loading .spinner {
    float: none;
    margin: 0;
}

/* ==================== MESSAGES CONTAINER ==================== */
.tempmails-messages-container {
    background: var(--tm-bg-panel);
    border-radius: var(--tm-radius-lg);
    box-shadow: var(--tm-shadow-card);
    overflow: hidden;
}

.tempmails-messages-list {
    display: flex;
    flex-direction: column;
}

/* ==================== MESSAGE CARD ==================== */
.tempmails-message-card {
    background: var(--tm-bg-panel);
    padding: var(--tm-space-16) var(--tm-space-24);
    cursor: pointer;
    transition: all var(--tm-transition-fast);
    position: relative;
    border-bottom: 1px solid var(--tm-bg-surface);
}

.tempmails-message-card:last-child {
    border-bottom: none;
}

.tempmails-message-card:hover {
    background: var(--tm-bg-surface);
    transform: translateX(4px);
}

.tempmails-message-card.tempmails-message-unread {
    border-left: 4px solid var(--tm-accent-primary);
    background: #F0F9FF; /* Unread tint */
}

.tempmails-message-card.tempmails-message-unread:hover {
    background: var(--tm-accent-light);
}

.tempmails-message-header {
    margin-bottom: var(--tm-space-8);
}

.tempmails-message-subject {
    font-family: var(--tm-font-heading);
    font-size: var(--tm-text-base);
    font-weight: var(--tm-weight-bold);
    color: var(--tm-text-primary);
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--tm-space-8);
}

.tempmails-message-unread .tempmails-message-subject {
    font-weight: 700;
    color: var(--tm-accent-primary);
}

.tempmails-message-subject .material-symbols-outlined {
    font-size: 18px;
    color: var(--tm-text-muted);
}

.tempmails-message-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--tm-space-16);
    flex-wrap: wrap;
}

.tempmails-message-sender {
    font-family: var(--tm-font-family);
    font-size: var(--tm-text-sm);
    color: var(--tm-text-muted);
    flex: 1;
}

.tempmails-message-sender strong {
    color: var(--tm-text-primary);
    font-weight: var(--tm-weight-bold);
}

.tempmails-message-date {
    font-family: var(--tm-font-family);
    font-size: 13px;
    color: var(--tm-text-muted);
}

/* ==================== EMPTY STATE ==================== */
.tempmails-empty-state {
    text-align: center;
    padding: var(--tm-space-48) var(--tm-space-24);
    color: var(--tm-text-muted);
}

.tempmails-empty-state .material-symbols-outlined {
    font-size: 64px;
    opacity: 0.3;
    margin-bottom: var(--tm-space-16);
    color: var(--tm-text-muted);
}

.tempmails-empty-state p {
    font-family: var(--tm-font-heading);
    font-size: var(--tm-text-lg);
    font-weight: var(--tm-weight-bold);
    margin: 0 0 var(--tm-space-8) 0;
    color: var(--tm-text-primary);
}

.tempmails-empty-state small {
    font-family: var(--tm-font-family);
    font-size: var(--tm-text-sm);
    color: var(--tm-text-muted);
}

/* ==================== MODAL (FIXED VISIBILITY) ==================== */
.tempmails-modal {
    display: none; /* JS toggles this */
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999999; /* Ensure high z-index */
    align-items: center;
    justify-content: center;
    padding: var(--tm-space-16);
}

.tempmails-modal[style*="display: block"] {
    display: flex !important; /* Force flex centering when shown */
}

.tempmails-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.75);
    backdrop-filter: blur(4px);
    z-index: 1;
}

.tempmails-modal-content {
    position: relative;
    background: var(--tm-bg-panel);
    border-radius: var(--tm-radius-xl);
    max-width: 700px;
    width: 100%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--tm-shadow-modal);
    z-index: 2; /* Content above overlay */
    animation: modalSlideUp var(--tm-transition-base);
}

@keyframes modalSlideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.tempmails-modal-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--tm-space-16);
    padding: var(--tm-space-24);
    border-bottom: 2px solid var(--tm-bg-surface);
}

.tempmails-modal-header h3 {
    font-family: var(--tm-font-heading);
    font-size: var(--tm-text-xl);
    font-weight: var(--tm-weight-bold);
    color: var(--tm-text-primary);
    margin: 0;
    flex: 1;
    line-height: 1.4;
}

.tempmails-modal-close {
    background: var(--tm-bg-surface);
    border: none;
    cursor: pointer;
    padding: var(--tm-space-8);
    border-radius: var(--tm-radius-sm);
    color: var(--tm-text-muted);
    transition: all var(--tm-transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.tempmails-modal-close:hover {
    background: var(--tm-status-error-light);
    color: var(--tm-status-error);
}

.tempmails-modal-close .material-symbols-outlined {
    font-size: 24px;
}

.tempmails-modal-meta {
    padding: var(--tm-space-16) var(--tm-space-24);
    background: var(--tm-bg-surface);
    display: flex;
    flex-direction: column;
    gap: var(--tm-space-8);
    font-size: var(--tm-text-sm);
    font-family: var(--tm-font-family);
}

.tempmails-modal-meta div {
    display: flex;
    gap: var(--tm-space-8);
}

.tempmails-modal-meta strong {
    color: var(--tm-text-muted);
    font-weight: var(--tm-weight-bold);
    min-width: 60px;
}

.tempmails-modal-meta span {
    color: var(--tm-text-primary);
}

.tempmails-modal-body {
    flex: 1;
    overflow-y: auto;
    padding: var(--tm-space-24);
    font-family: var(--tm-font-family);
    line-height: 1.7;
    font-size: 15px;
    color: var(--tm-text-primary);
}

.tempmails-modal-body a {
    color: var(--tm-accent-primary);
    text-decoration: underline;
}

.tempmails-modal-body a:hover {
    color: var(--tm-accent-hover);
}

.tempmails-modal-body p {
    margin: 0 0 var(--tm-space-16) 0;
}

.tempmails-modal-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--tm-radius-sm);
}

.tempmails-modal-attachments {
    padding: var(--tm-space-16) var(--tm-space-24);
    border-top: 2px solid var(--tm-bg-surface);
}

.tempmails-modal-attachments h4 {
    font-family: var(--tm-font-heading);
    font-size: var(--tm-text-xs);
    font-weight: var(--tm-weight-bold);
    color: var(--tm-text-muted);
    margin: 0 0 var(--tm-space-12) 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tempmails-modal-attachments ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: var(--tm-space-8);
}

.tempmails-modal-attachments li {
    display: flex;
    align-items: center;
    gap: var(--tm-space-8);
    padding: var(--tm-space-12);
    background: var(--tm-bg-surface);
    border-radius: var(--tm-radius-sm);
    transition: all var(--tm-transition-fast);
}

.tempmails-modal-attachments li:hover {
    background: var(--tm-accent-light);
}

.tempmails-modal-attachments a {
    color: var(--tm-accent-primary);
    text-decoration: none;
    font-weight: var(--tm-weight-medium);
    font-family: var(--tm-font-mono);
    font-size: 13px;
}

.tempmails-modal-attachments a:hover {
    text-decoration: underline;
}

.tempmails-modal-attachments .material-symbols-outlined {
    color: var(--tm-accent-primary);
    flex-shrink: 0;
    font-size: 20px;
}

.tempmails-modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--tm-space-12);
    padding: var(--tm-space-24);
    border-top: 2px solid var(--tm-bg-surface);
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
    .tempmails-inbox-wrapper { padding: var(--tm-space-16); }
    .tempmails-email-input-group { flex-direction: column; }
    .tempmails-email-input { min-width: 100%; }
    .tempmails-btn { width: 100%; justify-content: center; }
    .tempmails-stats { flex-direction: column; align-items: flex-start; }
    .tempmails-message-meta { flex-direction: column; align-items: flex-start; gap: var(--tm-space-8); }
    
    .tempmails-modal-content { max-width: 100%; max-height: 100vh; border-radius: 0; }
    .tempmails-message-card { padding: var(--tm-space-16); }
}

/* ==================== ACCESSIBILITY ==================== */
.tempmails-inbox-wrapper:focus-visible {
    outline: 2px solid var(--tm-accent-primary);
    outline-offset: 2px;
}

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

/* ==================== DARK MODE SUPPORT ==================== */
@media (prefers-color-scheme: dark) {
    :root {
        --tm-accent-primary: #3B82F6;
        --tm-accent-hover: #60A5FA;
        --tm-accent-light: #1E3A8A;
        --tm-bg-surface: #1E293B; /* Dark Slate */
        --tm-bg-panel: #0F172A;   /* Darker Slate */
        --tm-text-primary: #F1F5F9;
        --tm-text-muted: #94A3B8;
        --tm-border-color: #334155;
        --tm-shadow-card: 0 10px 25px rgba(0, 0, 0, 0.3);
        --tm-shadow-modal: 0 20px 40px rgba(0, 0, 0, 0.5);
        --tm-shadow-hover: 0 15px 35px rgba(0, 0, 0, 0.4);
        
        --tm-status-success-light: #064E3B;
        --tm-status-warning-light: #451A03;
        --tm-status-error-light: #450A0A;
        --tm-status-info-light: #0C4A6E;
    }
    .tempmails-message-card.tempmails-message-unread {
        background: #1E3A8A; /* Explicit fallback for unread cards */
    }
}