/* ============================================
   Messages Page — Light Theme (Dark Accent)
   ============================================ */

:root {
    --bg: #f8fafc;
    --surface: #ffffff;
    --muted: #f1f5f9;
    --text: #0f172a;
    --muted-text: #475569;
    --border: #e5e7eb;
    --highlight: #eff6ff;
    --primary: #2563eb;
    --accent: #7289da;
    --crowd: #0f172a;
}

.messages-container {
    max-width: 1200px;
    margin: 1rem auto;
    padding: 0;
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 0.75rem;
    height: calc(100vh - 80px);
    background: var(--bg);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.08);
}

.messages-container.tier-free .conversations-panel {
    border-top-color: #64748b;
}

.messages-container.tier-basic .conversations-panel {
    border-top-color: #10b981;
}

.messages-container.tier-pro .conversations-panel {
    border-top-color: #f59e0b;
}

.messages-container.tier-unlimited .conversations-panel {
    border-top-color: #8b5cf6;
}

.messages-container.tier-free .chat-panel {
    border-top-color: #64748b;
}

.messages-container.tier-basic .chat-panel {
    border-top-color: #10b981;
}

.messages-container.tier-pro .chat-panel {
    border-top-color: #f59e0b;
}

.messages-container.tier-unlimited .chat-panel {
    border-top-color: #8b5cf6;
}

/* Conversations Panel (server + channels style) */
.conversations-panel {
    background: var(--surface);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.08);
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.panel-header {
    padding: 1rem 1rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--muted);
}

.panel-header h2 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
    margin: 0;
    letter-spacing: 0.02em;
}

.new-conversation-btn {
    background: #7289da;
    border: none;
    border-radius: 6px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
    padding: 0;
    box-shadow: 0 0 10px rgba(114, 137, 218, 0.9);
}

.new-conversation-btn:hover {
    background: #677bc4;
}

.new-conversation-btn:hover {
    background: linear-gradient(135deg, #1d4ed8 0%, #6d28d9 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.4);
}

.conversations-list {
    flex: 1;
    overflow-y: auto;
    background: var(--surface);
}

.conversation-item {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    position: relative;
    color: var(--text);
}

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

.conversation-item.active {
    background: var(--highlight);
    border-left: 3px solid var(--primary);
}

.conversation-avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: #5865f2;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    flex-shrink: 0;
    border: 2px solid var(--border);
}

.conversation-item:nth-child(5n+2) .conversation-avatar {
    background: #7c3aed;
}

.conversation-item:nth-child(5n+3) .conversation-avatar {
    background: #be123c;
}

.conversation-item:nth-child(5n+4) .conversation-avatar {
    background: #0e7490;
}

.conversation-item:nth-child(5n+5) .conversation-avatar {
    background: #047857;
}

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

.conversation-name {
    font-weight: 600;
    color: var(--text);
    margin-bottom: 0.1rem;
    font-size: 0.93rem;
}

.conversation-preview {
    font-size: 0.8rem;
    color: var(--muted-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.conversation-item.unread .conversation-name {
    color: var(--primary);
}

.conversation-item.unread .conversation-preview {
    font-weight: 600;
    color: var(--text);
}

.unread-indicator {
    width: 10px;
    height: 10px;
    background: #f04747;
    border-radius: 50%;
    flex-shrink: 0;
    box-shadow: 0 0 0 2px rgba(240, 71, 71, 0.45);
}

/* Chat Panel */
.chat-panel {
    background: var(--surface);
    border-radius: 16px;
    box-shadow: 0 3px 10px rgba(15, 23, 42, 0.1);
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.conversations-panel,
.messages-list,
.message-input-container {
    border-radius: 16px;
}

.message-bubble,
.message-input-container,
.new-conversation-btn,
.send-btn {
    border-radius: 14px;
}

.empty-state {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--muted-text);
    padding: 3rem;
    text-align: center;
}

.empty-state svg {
    margin-bottom: 1.5rem;
    opacity: 0.4;
    stroke: var(--accent);
}

.empty-state h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.empty-state p {
    color: var(--gray-600);
}

.chat-area {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.chat-header {
    padding: 1rem 1rem;
    border-bottom: 1px solid var(--border);
    background: var(--muted);
}

.chat-user-info h3 {
    font-size: 1.1rem;
    color: var(--text);
    margin-bottom: 0.15rem;
    font-weight: 700;
}

.username {
    font-size: 0.75rem;
    color: var(--muted-text);
    font-weight: 600;
    background: var(--muted);
    padding: 0.18rem 0.45rem;
    border-radius: 0.35rem;
    display: inline-block;
    border: 1px solid var(--border);
}

/* Messages List */
.messages-list {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    background: var(--surface);
}

.message {
    display: flex;
    gap: 0.65rem;
    max-width: 75%;
}

.message.sent {
    margin-left: auto;
    flex-direction: row-reverse;
}

.message-avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: #e03b6c;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
    font-size: 0.75rem;
    border: 2px solid var(--border);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.12);
}

.message.sent .message-avatar {
    background: #2563eb;
}

.message-content {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.message-bubble {
    background: #ffffff;
    padding: 0.65rem 0.9rem;
    border-radius: 8px;
    word-wrap: break-word;
    color: #111827;
    border: 1px solid #e5e7eb;
    line-height: 1.45;
    position: relative;
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
}

.message.sent .message-bubble {
    background: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    color: #ffffff;
    border: 1px solid rgba(37, 99, 235, 0.8);
    box-shadow: 0 3px 12px rgba(37, 99, 235, 0.25);
}

.message-time {
    font-size: 0.72rem;
    color: var(--muted-text);
    padding: 0 0.3rem;
}

/* Message Input */
.message-input-container {
    padding: 0.8rem;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 0.6rem;
    align-items: center;
    background: var(--surface);
}

#message-input {
    flex: 1;
    padding: 0.7rem 0.85rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    resize: vertical;
    font-family: inherit;
    font-size: 0.92rem;
    max-height: 130px;
    transition: all 0.2s;
    background: var(--muted);
    color: var(--text);
}

#message-input:focus {
    outline: none;
    border-color: #3ba55d;
    box-shadow: 0 0 0 3px rgba(59, 165, 93, 0.2);
}

.send-btn {
    background: #3ba55d;
    color: white;
    border: none;
    width: 42px;
    height: 42px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(59, 165, 93, 0.45);
}

.messages-container.tier-free .send-btn {
    background: #64748b;
    box-shadow: 0 4px 12px rgba(100, 116, 139, 0.45);
}

.messages-container.tier-basic .send-btn {
    background: #10b981;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.45);
}

.messages-container.tier-pro .send-btn {
    background: #f59e0b;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.45);
}

.messages-container.tier-unlimited .send-btn {
    background: #8b5cf6;
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.45);
}

.send-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(59, 165, 93, 0.65);
}
.send-btn:active {
    transform: scale(0.98);
}

.send-btn:disabled {
    background: #4f545c;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}


/* Scrollbar Styling */
.conversations-list::-webkit-scrollbar,
.messages-list::-webkit-scrollbar {
    width: 6px;
}

.conversations-list::-webkit-scrollbar-track,
.messages-list::-webkit-scrollbar-track {
    background: transparent;
}

.conversations-list::-webkit-scrollbar-thumb,
.messages-list::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 3px;
}

.conversations-list::-webkit-scrollbar-thumb:hover,
.messages-list::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .messages-container {
        grid-template-columns: 300px 1fr;
    }
}

@media (max-width: 968px) {
    .messages-container {
        grid-template-columns: 1fr;
        height: auto;
    }
    
    .conversations-panel {
        max-height: 400px;
    }
    
    .chat-panel {
        min-height: 500px;
    }
    
    .message {
        max-width: 85%;
    }
}

@media (max-width: 768px) {
    .messages-container {
        padding: 0 1rem 1rem;
        margin: 1rem auto;
    }
    
    .panel-header h2 {
        font-size: 1.125rem;
    }
    
    .chat-header {
        padding: 1rem;
    }
    
    .messages-list {
        padding: 1rem;
    }
    
    .message-input-container {
        padding: 1rem;
    }
}

@media (max-width: 640px) {
    .messages-container {
        padding: 0 0.75rem 0.75rem;
        margin: 0.75rem auto;
    }
    
    .message {
        max-width: 90%;
    }
    
    .conversation-item {
        padding: 0.875rem 1rem;
    }
    
    .conversation-avatar {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .message-avatar {
        width: 32px;
        height: 32px;
        font-size: 0.875rem;
    }
    
    .panel-header {
        padding: 1rem;
    }

    #message-input {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .conversations-panel {
        max-height: 300px;
    }
    
    .chat-panel {
        min-height: 400px;
    }
    
    .message-bubble {
        padding: 0.625rem 0.875rem;
        font-size: 0.9375rem;
    }
    
    .chat-user-info h3 {
        font-size: 1.125rem;
    }
}

/* Message Actions (Edit/Delete) */
.message-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
    opacity: 0;
    transition: opacity 0.2s;
}

.message:hover .message-actions {
    opacity: 1;
}

.message-action-btn {
    background: white;
    border: 1px solid var(--gray-300);
    color: var(--gray-600);
    padding: 0.4rem 0.6rem;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.85rem;
    transition: all 0.2s;
}

.message-action-btn:hover {
    background: var(--gray-100);
    border-color: var(--gray-400);
}

.edit-btn:hover {
    color: var(--primary);
    border-color: var(--primary);
    background: rgba(37, 99, 235, 0.06);
}

.delete-btn:hover {
    color: var(--danger);
    border-color: var(--danger);
    background: rgba(239, 68, 68, 0.06);
}

.edited-label {
    font-size: 0.75rem;
    color: var(--gray-500);
    font-style: italic;
    margin-left: 0.4rem;
}

/* Message Edit Interface */
.message-edit-container {
    margin-top: 0.5rem;
}

.message-edit-input {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--primary);
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.9375rem;
    resize: vertical;
    min-height: 80px;
    background: white;
}

.message-edit-input:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.message-edit-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.message-edit-save,
.message-edit-cancel {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.message-edit-save {
    background: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.message-edit-save:hover {
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.4);
    transform: translateY(-1px);
}

.message-edit-cancel {
    background: var(--gray-200);
    color: var(--gray-700);
}

.message-edit-cancel:hover {
    background: var(--gray-300);
}