/* =========================================
   Chat Interface
   ========================================= */
#chat-container {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

#chat-container.hidden {
    display: none;
}

.chat-divider {
    height: 1px;
    background: var(--border-color-light-transparent);
    margin-bottom: 10px;
}

.chat-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 8px;
    flex-wrap: wrap;
    gap: 10px;
}

.chat-header h3 {
    margin: 0;
    font-size: 1rem;
    color: var(--c-camel);
    font-weight: bold;
    opacity: 0.8;
}

#chat-messages {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 300px;
    overflow-y: auto;
    padding-right: 5px;
    scrollbar-width: thin;
    scrollbar-color: var(--c-camel) rgba(0, 0, 0, 0.3);
}

#chat-messages::-webkit-scrollbar {
    width: 6px;
}
#chat-messages::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.3);
}
#chat-messages::-webkit-scrollbar-thumb {
    background-color: var(--c-camel);
    border-radius: 3px;
}

.chat-msg {
    background: rgba(255, 255, 255, 0.05);
    padding: 8px 12px;
    border-radius: 8px;
    font-size: var(--fs-sm);
    line-height: 1.4;
    color: var(--c-bone);
    animation: fade-in 0.3s ease;
    overflow-wrap: anywhere;
    white-space: pre-wrap;
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 6px;
}

.chat-msg.editing {
    border: 1px dashed var(--c-camel);
    background: rgba(180, 144, 106, 0.1);
}

.chat-msg .msg-author {
    color: var(--c-sand);
    font-weight: bold;
    font-size: 0.9em;
    flex-shrink: 0;
}

.chat-msg .msg-content {
    flex: 1;
    min-width: 0;
}

.chat-msg .msg-time {
    font-size: 0.75em;
    color: rgba(255, 255, 255, 0.4);
    white-space: nowrap;
    margin-left: auto;
}

.chat-msg .msg-meta {
    display: flex;
    align-items: baseline;
    gap: 6px;
    margin-left: auto;
}

.chat-edit-btn {
    background: none;
    border: none;
    padding: 0;
    margin-left: 8px;
    font-size: 0.7em;
    color: var(--c-sand);
    cursor: pointer;
    text-decoration: underline;
    opacity: 0.7;
}

.chat-edit-btn:hover {
    opacity: 1;
    color: var(--c-camel);
}

.chat-del-btn {
    background: none;
    border: none;
    padding: 0;
    margin-left: 8px;
    font-size: 0.7em;
    color: var(--c-red);
    cursor: pointer;
    text-decoration: underline;
    opacity: 0.7;
}

.chat-del-btn:hover {
    opacity: 1;
    color: var(--c-red);
}

.chat-footer {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.chat-controls {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 0;
    font-size: calc(var(--fs-sm) * 0.85);
    color: var(--c-text);
    opacity: 0.8;
}

.chat-name-label {
    white-space: nowrap;
}

#chat-name-input {
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border-color-light-transparent);
    color: var(--c-camel);
    font-family: var(--font-main);
    font-size: inherit;
    padding: 0 0 2px 0;
    width: auto;
    min-width: 80px;
    max-width: 150px;
}

#chat-name-input::placeholder {
    color: var(--c-text);
    opacity: 0.3;
}

#chat-name-input:focus {
    outline: none;
    border-color: var(--c-camel);
}

.chat-input-row {
    display: flex;
    gap: 8px;
    align-items: flex-end;
}

#chat-message-input {
    flex: 1;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color-light-transparent);
    border-radius: 10px;
    color: var(--c-text);
    font-family: var(--font-main);
    font-size: var(--fs-sm);
    padding: 8px 12px;
    resize: none;
    min-height: 20px;
    max-height: 120px;
    scrollbar-width: thin;
    line-height: 1.4;
    field-sizing: content;
    min-width: 0;
    width: 100%;
    height: auto;
}

@supports not (field-sizing: content) {
    #chat-message-input {
        height: 20px;
    }
}

#chat-message-input:focus {
    outline: none;
    border-color: var(--c-camel);
    background: rgba(0, 0, 0, 0.4);
}

#chat-send-btn {
    background: var(--c-camel);
    color: var(--c-ink);
    border: none;
    border-radius: 50%;
    width: 36px;
    height: 36px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    transition: transform 0.2s, background-color 0.2s;
    flex-shrink: 0;
}

#chat-send-btn:hover {
    background-color: var(--c-sand);
    transform: scale(1.05);
}

#chat-send-btn:active {
    transform: scale(0.95);
}

#chat-send-btn.editing-mode {
    background-color: var(--c-camel);
    color: var(--c-ink);
    transform: scale(1.1);
}

#chat-send-btn svg {
    display: block;
    fill: currentColor;
    margin-left: 2px;
}

.chat-load-more {
    background: none;
    border: none;
    color: var(--c-sand);
    font-size: 0.8em;
    cursor: pointer;
    text-align: center;
    padding: 5px;
    width: 100%;
    opacity: 0.6;
}

.chat-load-more:hover {
    opacity: 1;
    text-decoration: underline;
}

.chat-loading {
    text-align: center;
    opacity: 0.6;
    font-size: 0.8em;
    padding: 10px;
}

.chat-hint {
    display: block; 
    font-size: 0.6em; 
    opacity: 0.6; 
    margin: 5px;
}

@keyframes fade-in {
    from {
        opacity: 0;
        transform: translateY(5px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}