/* ========================================
   CHAT SECTION - "ROZMAWIAJ Z KSIĄŻKĄ"
   ======================================== */

.chat-container {
    background: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
}

.book-selector-bar {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md) var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.book-selector-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.book-mini-cover {
    width: 40px;
    height: 56px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    object-fit: cover;
}

.book-selector-text h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-text);
    margin: 0;
}

.book-selector-text p {
    font-size: 0.875rem;
    color: var(--secondary-text);
    margin: 0;
}

.chat-badge {
    font-size: 13px;
    color: var(--tertiary-text);
    background: var(--secondary-bg);
    padding: 6px 12px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.chat-messages {
    padding: var(--spacing-xl);
    min-height: 450px;
    max-height: 600px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* Message Bubbles */
.message {
    max-width: 80%;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 0.9375rem;
    line-height: 1.5;
    animation: messageSlideIn 0.3s ease-out;
}

@keyframes messageSlideIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.message-user {
    align-self: flex-end;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-hover) 100%);
    color: #000;
    border-radius: 18px 18px 4px 18px;
    font-weight: 500;
    box-shadow: 0 4px 12px rgba(217, 189, 9, 0.2);
}

.message-ai {
    align-self: flex-start;
    display: flex;
    gap: var(--spacing-md);
}

.ai-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--card-bg);
    border: 1px solid var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.125rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    color: var(--accent-color);
}

.ai-bubble {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: 18px 18px 18px 4px;
    color: var(--primary-text);
    line-height: 1.6;
}

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

/* Input Area */
.chat-input-area {
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-lg);
    background: var(--card-bg);
}

.chat-input-wrapper {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.chat-input {
    flex: 1;
    background: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    font-size: 0.9375rem;
    color: var(--primary-text);
    font-family: inherit;
}

.chat-input:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.chat-send-btn {
    background: var(--border-color);
    color: var(--tertiary-text);
    padding: 0 var(--spacing-xl);
    border-radius: var(--radius-md);
    border: none;
    font-weight: 600;
    cursor: not-allowed;
    transition: all 0.2s ease;
}

.chat-status-note {
    font-size: 0.8125rem;
    color: var(--secondary-text);
    text-align: center;
    margin: 0;
}

/* Typing Indicator */
.typing-indicator {
    display: flex;
    gap: 4px;
    align-items: center;
    padding: 4px 0;
}

.typing-indicator span {
    width: 6px;
    height: 6px;
    background: var(--tertiary-text);
    border-radius: 50%;
    animation: chatTyping 1.4s infinite ease-in-out;
}

.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes chatTyping {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30% { transform: translateY(-4px); opacity: 1; }
}

/* Responsiveness */
@media (max-width: 768px) {
    .message {
        max-width: 90%;
    }
    .chat-messages {
        padding: var(--spacing-md);
        min-height: 400px;
    }
}