/* ================= CHAT PANEL STYLES ================= */

/* Chat Panel - Right Side Full Height */
.chat-panel {
    position: fixed;
    top: 0;
    right: -450px;
    width: 450px;
    height: 100vh;
    background: rgba(31, 41, 55, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-left: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 10000;
    transition: right 0.3s ease;
    display: flex;
    flex-direction: column;
    box-shadow: -4px 0 24px rgba(0, 0, 0, 0.3);
}

.chat-panel.active {
    right: 0;
}

.chat-panel-header {
    padding: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-panel-header h2 {
    margin: 0;
    color: var(--color-text-primary);
    font-size: 1.25rem;
}

.chat-panel-close {
    background: none;
    border: none;
    color: var(--color-text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    transition: background 0.2s;
}

.chat-panel-close:hover {
    background: rgba(255, 255, 255, 0.1);
}

.chat-panel-tabs {
    display: flex;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(15, 23, 42, 0.3);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.chat-tab {
    flex: 1;
    padding: 1rem;
    background: none;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.2s;
    border-bottom: 2px solid transparent;
}

.chat-tab.active {
    color: var(--color-accent);
    border-bottom-color: var(--color-accent);
}

.chat-tab:hover {
    background: rgba(59, 130, 246, 0.05);
}

.chat-panel-content {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    background: transparent;
}

/* Conversations List */
.conversation-list-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s;
    margin-bottom: 0.5rem;
}

.conversation-list-item:hover {
    background: rgba(59, 130, 246, 0.1);
}

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

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

.conversation-name {
    margin: 0;
    color: var(--color-text-primary);
    font-size: 0.95rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.conversation-preview {
    margin: 0.25rem 0 0 0;
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.conversation-badge {
    background: #ef4444;
    color: white;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    flex-shrink: 0;
}

/* Empty State */
.chat-empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--color-text-secondary);
}

.chat-empty-state svg {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem;
    opacity: 0.5;
}

.chat-empty-state h3 {
    margin: 0 0 0.5rem 0;
    color: var(--color-text-primary);
}

.chat-empty-state p {
    margin: 0;
    font-size: 0.9rem;
}

/* Toggle Button */
.chat-panel-toggle {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 56px;
    height: 56px;
    background: var(--color-accent);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    z-index: 9999;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.chat-panel-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
}

.chat-panel-toggle svg {
    width: 24px;
    height: 24px;
}

/* Badge on Toggle */
.chat-panel-toggle {
    position: relative;
}

.chat-panel-toggle .chat-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background: #ef4444;
    color: white;
    border-radius: 50%;
    min-width: 24px;
    height: 24px;
    padding: 0 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: bold;
    box-shadow: 0 2px 8px rgba(239, 68, 68, 0.5);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

/* Chat Messages Container */
.chat-messages-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

.chat-messages-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.chat-messages-body {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    min-height: 0; /* Important for flex scrolling */
}

/* Ensure messages scroll to bottom */
.chat-messages-body {
    scroll-behavior: smooth;
}

.chat-message {
    display: flex;
    flex-direction: column;
    max-width: 75%;
    animation: fadeIn 0.3s ease;
}

.chat-message.sent {
    align-self: flex-end;
    align-items: flex-end;
}

.chat-message.received {
    align-self: flex-start;
    align-items: flex-start;
}

.chat-message-content {
    padding: 0.75rem 1rem;
    border-radius: 12px;
    word-wrap: break-word;
}

.chat-message.sent .chat-message-content {
    background: var(--color-accent);
    color: white;
}

.chat-message.received .chat-message-content {
    background: rgba(31, 41, 55, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: var(--color-text-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.chat-message-time {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    margin-top: 0.25rem;
    padding: 0 0.5rem;
}

.chat-messages-input {
    padding: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    gap: 0.5rem;
    flex-shrink: 0; /* Prevent input from shrinking */
}

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

/* Responsive */
@media (max-width: 768px) {
    .chat-panel {
        width: 100%;
        right: -100%;
    }
    
    .chat-panel-toggle {
        bottom: 1rem;
        right: 1rem;
        width: 48px;
        height: 48px;
    }
    
    .chat-message {
        max-width: 85%;
    }
}