/* CHKKY - chat interface styles */

.chat-shell {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 46px);
    max-width: 820px;
    margin: 0 auto;
}

.chat-log {
    flex: 1;
    overflow-y: auto;
    padding: 20px 16px 12px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.chat-empty {
    margin: auto;
    text-align: center;
    color: var(--muted);
    font-family: var(--mono);
    font-size: 12px;
    max-width: 420px;
    line-height: 1.6;
}

.chat-empty .chat-empty-title {
    color: var(--text);
    font-family: var(--sans);
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 10px;
}

.suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-top: 16px;
}

.suggestion-chip {
    font-family: var(--mono);
    font-size: 10.5px;
    color: var(--text);
    background: var(--card2);
    border: 1px solid var(--border2);
    border-radius: 999px;
    padding: 7px 12px;
    cursor: pointer;
}

.suggestion-chip:hover {
    border-color: var(--green);
    color: var(--green);
}

.bubble-row {
    display: flex;
    gap: 10px;
    max-width: 100%;
}

.bubble-row.user {
    justify-content: flex-end;
}

.bubble {
    max-width: 78%;
    padding: 12px 14px;
    border-radius: 12px;
    line-height: 1.55;
    font-size: 13px;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.bubble-row.user .bubble {
    background: var(--bld);
    border: 1px solid var(--blb);
    border-bottom-right-radius: 3px;
    color: var(--text);
}

.bubble-row.ai .bubble {
    background: var(--card);
    border: 1px solid var(--border);
    border-bottom-left-radius: 3px;
}

.bubble h2 {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--green);
    letter-spacing: 0.04em;
    margin: 0 0 8px;
    border-bottom: 1px dashed var(--border2);
    padding-bottom: 6px;
}

.bubble strong {
    color: var(--text);
}

.bubble-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    font-family: var(--mono);
    font-size: 9.5px;
    color: var(--muted);
    margin-top: 6px;
    letter-spacing: 0.04em;
}

.provider-tag {
    padding: 1px 6px;
    border-radius: 4px;
    background: var(--gd);
    color: var(--green);
    border: 1px solid var(--gb);
}

.bubble-row.error .bubble {
    background: var(--rd);
    border: 1px solid var(--rb);
    color: var(--red);
}

/* ══ typing / loading indicator ══ */
.typing-dots {
    display: inline-flex;
    gap: 4px;
    padding: 4px 0;
}

.typing-dots span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--muted);
    animation: typing-bounce 1.2s infinite ease-in-out;
}

.typing-dots span:nth-child(2) { animation-delay: 0.15s; }
.typing-dots span:nth-child(3) { animation-delay: 0.3s; }

@keyframes typing-bounce {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.5; }
    30% { transform: translateY(-4px); opacity: 1; }
}

/* ══ composer ══ */
.composer {
    display: flex;
    align-items: flex-end;
    gap: 10px;
    padding: 12px 16px;
    background: var(--surface);
    border-top: 1px solid var(--border);
    flex-shrink: 0;
}

.composer textarea {
    display: block;
    width: 100%;
    resize: none;
    max-height: 140px;
    background: var(--card2);
    border: 1px solid var(--border2);
    border-radius: 10px;
    color: var(--text);
    font-family: var(--sans);
    font-size: 13px;
    padding: 11px 14px;
    line-height: 1.4;
}

.composer textarea:focus {
    outline: none;
    border-color: var(--green);
}

.composer .char-count {
    font-family: var(--mono);
    font-size: 9px;
    color: var(--muted);
    text-align: right;
    margin-top: 4px;
}

.composer .char-count.limit {
    color: var(--red);
}

.send-btn {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    background: var(--gd);
    border: 1px solid var(--gb);
    color: var(--green);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
}

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

.send-btn svg {
    width: 18px;
    height: 18px;
}

.disclaimer-bar {
    font-family: var(--mono);
    font-size: 9.5px;
    color: var(--muted);
    text-align: center;
    padding: 6px 16px 10px;
    letter-spacing: 0.02em;
}

@media (max-width: 640px) {
    .bubble {
        max-width: 88%;
    }
    .chat-log {
        padding: 14px 10px 8px;
    }
    .composer {
        padding: 10px;
    }
}