/* ── CxAI Studio — Chat Panel (Enhanced) ── */

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 28px clamp(20px, 10%, 120px);
    display: flex;
    flex-direction: column;
    gap: 22px;
}

.msg {
    position: relative;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    animation: fadeIn .3s ease-out;
}

.msg.user { flex-direction: row-reverse; }

.msg-avatar {
    width: 32px;
    height: 32px;
    border-radius: 10px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .82rem;
    font-weight: 700;
}

.msg.user .msg-avatar {
    background: linear-gradient(135deg, var(--accent), var(--purple));
    color: #fff;
    box-shadow: 0 2px 10px rgba(var(--accent-rgb), .25);
}

.msg.agent .msg-avatar {
    background: linear-gradient(135deg, #1c2844, #263b66);
    color: var(--accent);
    font-size: 1rem;
    border: 1px solid rgba(var(--accent-rgb), .15);
}

.msg-body {
    flex: 1;
    max-width: calc(100% - 48px);
}

.msg.user .msg-body {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.msg-bubble {
    padding: 12px 16px;
    border-radius: var(--radius-lg);
    font-size: .88rem;
    line-height: 1.65;
    word-break: break-word;
    max-width: 100%;
}

.msg.user .msg-bubble {
    background: linear-gradient(135deg, var(--accent), rgba(var(--accent-rgb), .85));
    color: #fff;
    border-radius: var(--radius-lg) var(--radius-lg) 4px var(--radius-lg);
    box-shadow: 0 2px 14px rgba(var(--accent-rgb), .2);
}

.msg.agent .msg-bubble {
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 4px var(--radius-lg) var(--radius-lg) var(--radius-lg);
}

.msg.system { justify-content: center; }

.msg.system .msg-bubble {
    background: rgba(var(--accent-rgb), .04);
    border: 1px solid rgba(var(--accent-rgb), .08);
    border-radius: var(--radius-xl);
    color: var(--muted);
    font-size: .77rem;
    text-align: center;
    padding: 8px 20px;
}

.copy-btn {
    position: absolute;
    top: 2px;
    left: 46px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 5px;
    color: var(--muted);
    font-size: .65rem;
    padding: 3px 7px;
    cursor: pointer;
    opacity: 0;
    transition: all var(--trans);
}

.msg.user .copy-btn { left: auto; right: 46px; }
.msg:hover .copy-btn { opacity: 1; }
.copy-btn:hover { color: var(--text); background: var(--surface2); }

.msg-meta { font-size: .68rem; color: var(--muted); margin-top: 5px; }
.msg-tokens { font-size: .66rem; color: var(--muted); }

/* ── Typing dots ── */
.typing-dots { display: flex; gap: 5px; padding: 6px 0; }

.typing-dots span {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent);
    opacity: .4;
    animation: bounce 1.2s infinite;
}

.typing-dots span:nth-child(2) { animation-delay: .2s; }
.typing-dots span:nth-child(3) { animation-delay: .4s; }

/* ── Code in bubbles ── */
.msg-bubble code {
    font-family: var(--mono);
    font-size: .82em;
    background: rgba(0, 0, 0, .25);
    padding: 2px 6px;
    border-radius: 4px;
}

.msg-bubble pre {
    border-radius: var(--radius);
    padding: 12px 14px;
    margin: 10px 0;
    font-family: var(--mono);
    font-size: .78rem;
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-word;
    background: rgba(0, 0, 0, .32);
    border: 1px solid var(--border);
    position: relative;
}

/* ── Input area ── */
.input-area {
    padding: 14px clamp(20px, 10%, 120px) 16px;
    border-top: 1px solid var(--border-dim);
    background: var(--bg);
    display: flex;
    flex-direction: column;
    gap: 8px;
    position: relative;
}

/* Gradient fade above input */
.input-area::before {
    content: '';
    position: absolute;
    top: -24px;
    left: 0; right: 0;
    height: 24px;
    background: linear-gradient(transparent, var(--bg));
    pointer-events: none;
}

.input-box {
    display: flex;
    gap: 10px;
    align-items: flex-end;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 12px 14px;
    transition: all var(--trans);
    box-shadow: 0 2px 12px rgba(0,0,0,.15);
}

.input-box:focus-within {
    border-color: rgba(var(--accent-rgb), .5);
    box-shadow: 0 2px 20px rgba(var(--accent-rgb), .08);
}

#chat-input {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    color: var(--text);
    font-size: .88rem;
    font-family: inherit;
    resize: none;
    min-height: 24px;
    max-height: 160px;
    line-height: 1.5;
}

#chat-input::placeholder { color: var(--muted); }

.send-btn {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    border: none;
    background: linear-gradient(135deg, var(--accent), var(--purple));
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    transition: all var(--trans);
    flex-shrink: 0;
    box-shadow: 0 2px 10px rgba(var(--accent-rgb), .25);
}

.send-btn:disabled {
    opacity: .3;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.send-btn:not(:disabled):hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(var(--accent-rgb), .35);
}

.send-btn:not(:disabled):active { transform: scale(.93); }

.input-hint {
    font-size: .71rem;
    color: var(--muted);
    text-align: center;
}