/* ==========================================================================
   ChelloAI Chat Simulator Layout
   ========================================================================== */
.chat-window {
    background: var(--color-navy-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-gray-border);
    display: flex;
    flex-direction: column;
    height: 550px;
    overflow: hidden;
    color: var(--color-white);
}

/* Chat Header */
.chat-header {
    background: var(--color-navy-dark);
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--color-gray-border);
    gap: var(--spacing-sm);
}

.chat-avatar-wrapper {
    position: relative;
    width: 44px;
    height: 44px;
}

.chat-avatar {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 2px solid var(--color-teal);
    object-fit: cover;
}

.avatar-status-dot {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #48BB78;
    border: 2px solid var(--color-navy-dark);
}

.chat-header-info h4 {
    color: var(--color-white);
    font-size: 1rem;
    margin: 0;
}

.chat-header-info p {
    font-size: 0.8rem;
    color: var(--color-teal);
    margin: 0;
    font-weight: 500;
}

/* Message Feed */
.chat-messages {
    flex: 1;
    padding: var(--spacing-md);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    background: var(--color-navy-dark);
}

.message-bubble {
    max-width: 80%;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    line-height: 1.5;
    animation: bubblePop 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes bubblePop {
    from { transform: scale(0.9); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.message-bubble.incoming {
    align-self: flex-start;
    background: var(--color-navy-light);
    color: var(--color-white);
    border-bottom-left-radius: 2px;
    border: 1px solid var(--color-gray-border);
}

.message-bubble.outgoing {
    align-self: flex-end;
    background: var(--color-teal);
    color: var(--color-navy);
    border-bottom-right-radius: 2px;
    font-weight: 500;
}

/* Typing Indicator */
.typing-indicator {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 12px 16px;
    background: var(--color-navy-light);
    border-radius: var(--radius-md);
    border-bottom-left-radius: 2px;
    align-self: flex-start;
    width: fit-content;
}

.typing-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--color-teal);
    animation: bounce 1.4s infinite ease-in-out both;
}

.typing-dot:nth-child(1) { animation-delay: -0.32s; }
.typing-dot:nth-child(2) { animation-delay: -0.16s; }

@keyframes bounce {
    0%, 80%, 100% { transform: scale(0); }
    40% { transform: scale(1.0); }
}

/* Suggestions Area */
.chat-suggestions {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-navy-light);
    border-top: 1px solid var(--color-gray-border);
}

.chat-suggestions-title {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--color-gray-steel);
    margin-bottom: var(--spacing-xs);
    letter-spacing: 0.05em;
}

.suggestions-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.suggestion-btn {
    background: var(--color-navy-dark);
    color: var(--color-white);
    border: 1px solid var(--color-gray-border);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    transition: var(--transition-fast);
}

.suggestion-btn:hover {
    border-color: var(--color-teal);
    background: var(--color-navy);
}

.suggestion-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Custom simulated typewriter cursor */
.typewriter-cursor::after {
    content: '|';
    animation: blink 0.75s step-end infinite;
    color: var(--color-teal);
    margin-left: 2px;
    font-weight: bold;
}

@keyframes blink {
    from, to { color: transparent; }
    50% { color: var(--color-teal); }
}