/**
 * FireWeb Messenger - Complete CSS (Premium UI v0.0.1)
 * 
 * @author Alion (@prgpu / @Learn_launch)
 * @license MIT
 */

:root {
    --primary: #667eea;
    --primary-dark: #5568d3;
    --accent: #f5576c;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-hover: #e2e8f0;
    --bg-elevated: #ffffff;
    
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-tertiary: #94a3b8;
    
    --border: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-hover: #475569;
    --bg-elevated: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    --border: #334155;
}

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

.chat-page {
    height: 100vh;
    overflow: hidden;
}

.chat-container {
    display: flex;
    height: 100vh;
    background: var(--bg-secondary);
}

.sidebar {
    width: 350px;
    background: var(--bg-primary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.sidebar-header {
    padding: 16px;
    border-bottom: 1px solid var(--border);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.avatar-wrapper {
    position: relative;
    flex-shrink: 0;
}

.avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border);
}

.online-badge {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 12px;
    height: 12px;
    background: var(--success);
    border: 2px solid var(--bg-primary);
    border-radius: 50%;
}

.user-info {
    flex: 1;
    min-width: 0;
}

.user-info h3 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 2px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.user-info p {
    font-size: 13px;
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sidebar-actions {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.icon-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: var(--bg-secondary);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-secondary);
}

.icon-btn:hover {
    background: var(--primary);
    color: white;
}

.icon-btn svg {
    width: 18px;
    height: 18px;
}

.conversations-wrapper {
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.conversations-list {
    flex: 1;
    overflow-y: auto;
    padding: 4px;
}

.conversation-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s;
    margin-bottom: 2px;
    position: relative;
}

.conversation-item:hover {
    background: var(--bg-secondary);
}

.conversation-item.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.conversation-avatar img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.conversation-info {
    flex: 1;
    min-width: 0;
}

.conversation-info h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 3px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.conversation-info p {
    font-size: 12px;
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.conversation-item.active .conversation-info p {
    color: rgba(255, 255, 255, 0.8);
}

.unread-badge {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: white;
    font-size: 11px;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 12px;
    min-width: 20px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(239, 68, 68, 0.4);
    animation: badgePulse 2s ease-in-out infinite;
}

@keyframes badgePulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 2px 8px rgba(239, 68, 68, 0.4);
    }
    50% {
        transform: scale(1.1);
        box-shadow: 0 4px 12px rgba(239, 68, 68, 0.6);
    }
}

.conversation-item.active .unread-badge {
    display: none;
}

.chat-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-secondary);
    min-width: 0;
    position: relative;
}

.chat-header {
    padding: 14px 16px;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 70px;
    position: sticky;
    top: 0;
    z-index: 10;
}

.menu-btn {
    display: none;
}

.welcome-screen {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-secondary);
    z-index: 1;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.welcome-screen[style*="display: none"] {
    opacity: 0 !important;
    visibility: hidden !important;
    pointer-events: none !important;
}

.welcome-content {
    text-align: center;
}

.welcome-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 50px;
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.3);
}

.welcome-content h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 10px;
}

.welcome-content p {
    font-size: 15px;
    color: var(--text-secondary);
}

.chat-user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    min-width: 0;
    cursor: pointer;
    transition: opacity 0.2s;
}

.chat-user-info:hover {
    opacity: 0.8;
}

.chat-user-info .avatar-wrapper {
    flex-shrink: 0;
}

.chat-user-info img {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border);
    display: block;
}

.chat-user-details {
    flex: 1;
    min-width: 0;
}

.chat-user-details h3 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 3px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.chat-status {
    font-size: 12px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 5px;
}

.status-dot {
    width: 7px;
    height: 7px;
    background: var(--success);
    border-radius: 50%;
    flex-shrink: 0;
}

.messages-container {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    scroll-behavior: smooth;
}

.messages-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.message {
    display: flex;
    gap: 10px;
    animation: message-slide-in 0.3s ease;
    position: relative;
    padding: 4px 0;
}

.message.own {
    flex-direction: row-reverse;
}

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

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.message-content {
    max-width: 65%;
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.message.own .message-content {
    align-items: flex-end;
}

.message-bubble {
    padding: 10px 14px;
    border-radius: 14px;
    box-shadow: var(--shadow-sm);
    word-wrap: break-word;
    transition: all 0.2s;
    cursor: context-menu;
}

.message-bubble:hover {
    box-shadow: var(--shadow-md);
}

.message.own .message-bubble {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-bottom-right-radius: 4px;
}

.message:not(.own) .message-bubble {
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-bottom-left-radius: 4px;
}

.message-text {
    font-size: 14px;
    line-height: 1.5;
    white-space: pre-wrap;
    word-break: break-word;
}

.message-edited {
    font-size: 10px;
    opacity: 0.7;
    font-style: italic;
    margin-top: 3px;
}

.message-footer {
    padding: 0 6px;
    font-size: 10px;
    color: var(--text-tertiary);
    display: flex;
    align-items: center;
    gap: 4px;
}

.message.own .message-footer {
    flex-direction: row-reverse;
    color: rgba(255, 255, 255, 0.7);
}

.context-menu {
    position: fixed;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 10px;
    box-shadow: var(--shadow-xl);
    padding: 6px;
    z-index: 10000;
    min-width: 180px;
    display: none;
}

.context-menu.active {
    display: block;
    animation: scaleIn 0.15s ease;
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.context-menu-item {
    padding: 10px 14px;
    cursor: pointer;
    border-radius: 6px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-primary);
    transition: all 0.2s;
    user-select: none;
}

.context-menu-item:hover {
    background: var(--bg-secondary);
}

.context-menu-item.danger {
    color: var(--danger);
}

.context-menu-item.danger:hover {
    background: rgba(239, 68, 68, 0.1);
}

.context-menu-item svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.context-menu-divider {
    height: 1px;
    background: var(--border);
    margin: 4px 0;
}

.message-composer {
    padding: 12px 16px;
    background: var(--bg-primary);
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 10px;
}

.composer-textarea {
    flex: 1;
    max-height: 100px;
    padding: 10px 14px;
    border: 2px solid var(--border);
    border-radius: 10px;
    font-size: 14px;
    color: var(--text-primary);
    background: var(--bg-secondary);
    resize: none;
    transition: all 0.2s;
    font-family: inherit;
}

.composer-textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-primary);
}

.send-btn {
    width: 42px;
    height: 42px;
    border: none;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.send-btn:hover:not(:disabled) {
    transform: scale(1.05);
}

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

.send-btn svg {
    width: 18px;
    height: 18px;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(30px);
    border-radius: 16px;
    padding: 24px;
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .modal-content {
    background: rgba(30, 41, 59, 0.95);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.modal-header h2 {
    font-size: 20px;
    font-weight: 700;
}

.modal-close {
    width: 32px;
    height: 32px;
    border: none;
    background: rgba(0, 0, 0, 0.05);
    border-radius: 50%;
    cursor: pointer;
    font-size: 20px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.modal-close:hover {
    background: var(--danger);
    color: white;
}

.search-bar {
    padding: 16px;
    border-bottom: 1px solid var(--border);
}

.search-input-wrapper {
    position: relative;
}

.search-input-wrapper input {
    width: 100%;
    padding: 12px 16px 12px 44px;
    border: 2px solid var(--border);
    border-radius: 12px;
    font-size: 15px;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
    transition: all 0.2s;
}

.search-input-wrapper input:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-primary);
}

.search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
}

.search-results {
    max-height: 400px;
    overflow-y: auto;
    padding: 8px;
}

.search-result-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s;
}

.search-result-item:hover {
    background: rgba(102, 126, 234, 0.1);
}

.search-result-item img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
}

.search-result-info h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 2px;
}

.search-result-info p {
    font-size: 13px;
    color: var(--text-secondary);
}

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

.form-group label {
    display: block;
    font-weight: 600;
    font-size: 14px;
    color: #1e293b;
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: 10px;
    font-size: 15px;
    color: var(--text-primary);
    background: var(--bg-primary);
    transition: all 0.2s;
}

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

.form-group small {
    display: block;
    margin-top: 6px;
    font-size: 13px;
    color: var(--text-secondary);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
}

.btn-block {
    width: 100%;
}

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

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

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

@media (max-width: 767px) {
  .sidebar {
    position: fixed !important;
    left: 0 !important;
    top: 0 !important;
    width: 85vw !important;
    max-width: 340px !important;
    height: 100vh !important;
    z-index: 2000 !important;
    transform: translateX(-100%) !important;
    transition: transform 0.3s ease !important;
  }
  
  .sidebar.open {
    transform: translateX(0) !important;
  }
  
  .chat-area {
    width: 100vw !important;
    height: 100vh !important;
  }
  
  .welcome-screen {
    position: relative;
  }
  
  .menu-btn {
    display: flex !important;
  }
  
  .floating-menu-btn {
    display: none !important;
  }
}