/* Chat layout */
.chat-layout {
    display: flex;
    flex-direction: column;
    height: 100%;
    flex: 1;
}

.chat-header-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 16px;
    height: 52px;
    min-height: 52px;
    border-bottom: 1px solid var(--brd);
    background: var(--bg2);
    flex-shrink: 0;
}

.chat-header-bar .chat-header-avatar {
    width: 32px;
    height: 32px;
    min-width: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--acc), #a855f7);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--fd), sans-serif;
    font-weight: 700;
    font-size: 13px;
    position: relative;
    flex-shrink: 0;
}

.chat-header-bar .chat-header-avatar .status-dot {
    position: absolute;
    bottom: -1px;
    right: -1px;
    width: 10px;
    height: 10px;
    border: 2px solid var(--bg2);
}

.chat-header-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.chat-header-bar .chat-header-title {
    flex: 1;
    min-width: 0;
    margin: 0;
    font-family: var(--fd), sans-serif;
    font-weight: 700;
    font-size: 16px;
    color: var(--t1);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-header-status {
    font-family: var(--fm), monospace;
    font-size: 11px;
    color: var(--a2);
}

.chat-header-actions {
    display: flex;
    gap: 4px;
    margin-left: auto;
    flex-shrink: 0;
}

.chat-header-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: var(--t3);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 15px;
    transition: background 0.12s, color 0.12s;
}

.chat-header-btn:hover {
    background: var(--bg3);
    color: var(--t1);
}

.chat-header-btn.active {
    background: var(--bg3);
    color: var(--acc);
}

.chat-body-row {
    display: flex;
    flex: 1;
    overflow: hidden;
    min-height: 0;
}

/* Grid: justify-items centers avatar + caption without relying on flex parent quirks */
.chat-layout .messages .chat-start {
    display: grid;
    justify-items: center;
    text-align: center;
    align-self: center;
    width: min(100%, 420px);
    margin: 0 auto 24px;
    padding: 20px 16px;
    row-gap: 12px;
    box-sizing: border-box;
}

.chat-layout .messages .chat-start-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgb(255, 71, 87), rgb(192, 57, 43));
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--fd), sans-serif;
    font-weight: 700;
    font-size: 26px;
    color: rgb(255, 255, 255);
}

.chat-layout .messages .chat-start-lead {
    font-family: var(--fb), sans-serif;
    font-size: 13px;
    color: var(--t2);
    margin: 0;
    max-width: 100%;
}

.chat-body-row .messages {
    flex: 1;
    min-width: 0;
}

.anon-room-header span {
    font-family: var(--fd), sans-serif;
    font-weight: 700;
    font-size: 16px;
    color: var(--t1);
}

.chat-header-icon {
    color: var(--t3);
    font-size: 18px;
    flex-shrink: 0;
}

.chat-header-title {
    margin: 0;
    font-size: 16px;
    font-weight: 700;
    color: var(--t1);
    font-family: var(--fd), sans-serif;
}

.chat-layout .messages {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: 16px 16px 8px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
}

.chat-layout .message {
    display: flex;
    gap: 10px;
    padding: 3px 8px;
    margin-bottom: 2px;
    border-radius: 8px;
    transition: background 0.1s;
}


.chat-layout .message:hover {
    background: rgba(255, 255, 255, 0.02);
}

.message-avatar {
    width: 36px;
    height: 36px;
    min-width: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--acc), #a855f7);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--fd), sans-serif;
    font-weight: 700;
    font-size: 14px;
    flex-shrink: 0;
    margin-top: 2px;
}

.message-body {
    flex: 1;
    min-width: 0;
}

.message-header {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 1px;
}

.message-author {
    font-family: var(--fd), sans-serif;
    font-weight: 700;
    font-size: 15px;
    color: var(--t1);
}


.message-time {
    font-family: var(--fm), monospace;
    font-size: 10px;
    color: var(--t3);
}

.message-content {
    color: var(--t1);
    font-family: var(--fb), sans-serif;
    font-size: 14px;
    line-height: 1.55;
    word-break: break-word;
}

.message-date-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 16px 0 8px;
}

.message-date-divider hr {
    flex: 1;
    border: none;
    border-top: 1px solid var(--brd);
    margin: 0;
}

.message-date-divider span {
    font-family: var(--fm), monospace;
    font-size: 10px;
    color: var(--t3);
    white-space: nowrap;
}

.chat-layout .input-area {
    display: flex;
    padding: 12px 16px;
    border-top: 1px solid var(--brd);
    gap: 8px;
    background: var(--bg2);
    align-items: center;
    flex-shrink: 0;
}

.btn-attach {
    width: 32px;
    height: 32px;
    min-width: 32px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    line-height: 1;
    background: var(--bg3);
    color: var(--t3);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.12s, color 0.12s;
    flex-shrink: 0;
}

.btn-attach:hover:not(:disabled) {
    background: var(--bg4);
    color: var(--t1);
}

.btn-attach:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.chat-layout .input-area input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid var(--brd);
    border-radius: 10px;
    background: var(--bg3);
    color: var(--t1);
    font-family: var(--fb), sans-serif;
    font-size: 14px;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.chat-layout .input-area input::placeholder {
    color: var(--t3);
}

.chat-layout .input-area input:focus {
    outline: none;
    border-color: rgba(61, 139, 255, 0.35);
    box-shadow: 0 0 0 3px rgba(61, 139, 255, 0.08);
}

.chat-layout .input-area button:not(.btn-attach) {
    padding: 8px 18px;
    background: var(--acc);
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    font-size: 13px;
    transition: background 0.15s, box-shadow 0.15s;
    flex-shrink: 0;
}

.chat-layout .input-area button:not(.btn-attach):hover:not(:disabled) {
    background: #5a9fff;
    box-shadow: 0 0 10px var(--accg);
}

.chat-layout .input-area button:not(.btn-attach):disabled {
    opacity: 0.5;
    cursor: not-allowed;
}