/* ==========================================================================
   Coralis CRM — Chat & Bot Assistant Module (v12.1.0)
   Encapsulated CSS for Bot Sessions, Conversation Threads & Real-Time Replies
   ========================================================================== */

/* Chat Main Layout Container */
.chat-layout {
    display: grid;
    grid-template-columns: 320px 1fr;
    height: calc(100vh - 240px);
    min-height: 420px;
    margin-bottom: 20px;
    border: 1px solid var(--border-color, rgba(255, 255, 255, 0.08));
    background: var(--bg-card, #131722);
    border-radius: var(--radius-lg, 12px);
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

/* Chat Sidebar (Session List & Controls) */
.chat-sidebar {
    border-right: 1px solid var(--border-color, rgba(255, 255, 255, 0.08));
    padding: 14px 10px 14px 14px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    height: 100%;
    overflow: hidden;
    box-sizing: border-box;
    background: rgba(0, 0, 0, 0.1);
}

/* Scrollable Session List */
.session-list {
    flex: 1 1 auto;
    overflow-y: scroll !important;
    overflow-x: hidden !important;
    max-height: calc(100vh - 340px);
    min-height: 200px;
    padding-right: 6px;
    padding-bottom: 30px;
    scrollbar-width: auto !important;
    scrollbar-color: var(--accent-cyan, #00f2fe) rgba(0, 0, 0, 0.3);
}

/* WebKit Scrollbar Styling (Chrome, Edge, Safari, Opera) */
.session-list::-webkit-scrollbar {
    width: 12px !important;
    display: block !important;
}

.session-list::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.25) !important;
    border-radius: 6px;
}

.session-list::-webkit-scrollbar-thumb {
    background: var(--accent-cyan, #00f2fe) !important;
    border-radius: 6px;
    border: 2px solid rgba(0, 0, 0, 0.25);
}

.session-list::-webkit-scrollbar-thumb:hover {
    background: #38bdf8 !important;
}

/* Session Item Cards */
.session-item {
    background: var(--status-bg, rgba(255, 255, 255, 0.03));
    border: 1px solid var(--border-color, rgba(255, 255, 255, 0.06));
    border-radius: var(--radius-md, 8px);
    padding: 12px;
    margin-bottom: 10px;
    cursor: pointer;
    transition: var(--transition-fast, all 0.2s ease);
}

.session-item:hover, .session-item.active {
    border-color: var(--accent-cyan, #00f2fe);
    background: rgba(0, 242, 254, 0.05);
}

.session-item h4 {
    font-size: 0.85rem;
    margin-bottom: 4px;
    font-weight: 600;
}

.session-item span {
    font-size: 0.7rem;
    color: var(--text-secondary, #94a3b8);
}

/* Chat Main Conversation Area */
.chat-main-area {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
    background: var(--bg-card, #131722);
}

.chat-header-bar {
    padding: 12px 20px;
    border-bottom: 1px solid var(--border-color, rgba(255, 255, 255, 0.08));
    background: var(--bg-card, #131722);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.chat-body {
    display: flex;
    flex-direction: column;
    padding: 20px;
    overflow-y: auto;
    gap: 14px;
    flex: 1;
}

.chat-body::-webkit-scrollbar {
    width: 8px;
}

.chat-body::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 4px;
}

.chat-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-secondary, #94a3b8);
    gap: 14px;
    text-align: center;
    padding: 20px;
}

.chat-empty-state .empty-icon {
    font-size: 3rem;
    opacity: 0.8;
}

/* Chat Message Bubbles */
.msg {
    display: flex;
    flex-direction: column;
    max-width: 75%;
    padding: 12px 16px;
    border-radius: var(--radius-md, 8px);
    font-size: 0.88rem;
    line-height: 1.45;
    word-break: break-word;
}

.msg.user {
    align-self: flex-end;
    background-color: var(--accent-violet, #8b5cf6);
    color: #fff;
    border-bottom-right-radius: 2px;
}

.msg.bot {
    align-self: flex-start;
    background-color: var(--msg-bot-bg, rgba(255, 255, 255, 0.06));
    border: 1px solid var(--border-color, rgba(255, 255, 255, 0.08));
    border-bottom-left-radius: 2px;
}

.msg-meta {
    font-size: 0.68rem;
    opacity: 0.75;
    margin-top: 5px;
    align-self: flex-end;
}

/* Reply Input Bar */
.chat-reply-bar {
    padding: 14px 20px 18px 20px;
    border-top: 1px solid var(--border-color, rgba(255, 255, 255, 0.08));
    background: var(--bg-card, #131722);
    display: flex;
    gap: 10px;
    align-items: center;
}

/* Responsive Breakpoints */
@media (max-height: 800px) {
    .chat-layout {
        height: calc(100vh - 170px) !important;
    }
    .session-list {
        max-height: calc(100vh - 270px) !important;
    }
}

@media (max-height: 700px) {
    .chat-layout {
        height: calc(100vh - 140px) !important;
    }
    .session-list {
        max-height: calc(100vh - 240px) !important;
    }
}

@media (max-width: 900px) {
    .chat-layout {
        grid-template-columns: 1fr;
        height: auto;
        min-height: 500px;
    }
    .chat-sidebar {
        max-height: 350px;
        border-right: none;
        border-bottom: 1px solid var(--border-color, rgba(255, 255, 255, 0.08));
    }
    .session-list {
        max-height: 260px !important;
    }
}