/**
 * UR AI Assistant 前台樣式
 */

.ur-ai-box {
    max-width: 900px;
    margin: 32px auto;
    padding: 30px;
    border: 1px solid #e5e7eb;
    border-radius: 18px;
    background: #ffffff;
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.06);
    box-sizing: border-box;
}

.ur-ai-header {
    margin-bottom: 20px;
}

.ur-ai-header h2 {
    margin: 0 0 10px;
    font-size: 30px;
    line-height: 1.35;
    font-weight: 700;
    color: #111827;
}

.ur-ai-header p {
    margin: 0;
    font-size: 16px;
    line-height: 1.8;
    color: #4b5563;
}

.ur-ai-notice {
    margin: 20px 0;
    padding: 15px 18px;
    border-left: 5px solid #374151;
    border-radius: 10px;
    background: #f9fafb;
    color: #374151;
    font-size: 15px;
    line-height: 1.8;
}

.ur-ai-examples {
    margin: 22px 0;
    padding: 18px 20px;
    border-radius: 14px;
    background: #f8fafc;
    border: 1px solid #e5e7eb;
}

.ur-ai-examples p {
    margin: 0 0 10px;
    font-size: 15px;
    color: #111827;
}

.ur-ai-examples ul {
    margin: 0;
    padding-left: 22px;
}

.ur-ai-examples li {
    margin: 6px 0;
    line-height: 1.7;
    color: #374151;
}

.ur-ai-form {
    margin-top: 24px;
}

.ur-ai-label {
    display: block;
    margin-bottom: 8px;
    font-size: 15px;
    font-weight: 600;
    color: #111827;
}

.ur-ai-form textarea {
    width: 100%;
    min-height: 150px;
    padding: 15px;
    border: 1px solid #d1d5db;
    border-radius: 14px;
    background: #ffffff;
    color: #111827;
    font-size: 16px;
    line-height: 1.75;
    resize: vertical;
    box-sizing: border-box;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.ur-ai-form textarea:focus {
    outline: none;
    border-color: #374151;
    box-shadow: 0 0 0 3px rgba(55, 65, 81, 0.12);
}

.ur-ai-form-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 14px;
}

.ur-ai-counter {
    font-size: 13px;
    color: #6b7280;
}

.ur-ai-form button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 120px;
    padding: 12px 24px;
    border: none;
    border-radius: 999px;
    background: #111827;
    color: #ffffff;
    font-size: 15px;
    font-weight: 600;
    line-height: 1;
    cursor: pointer;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.ur-ai-form button:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.ur-ai-form button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.ur-ai-loading {
    margin-top: 20px;
    padding: 14px 16px;
    border-radius: 12px;
    background: #f3f4f6;
    color: #374151;
    font-size: 15px;
    line-height: 1.7;
}

.ur-ai-error {
    margin-top: 20px;
    padding: 14px 16px;
    border-radius: 12px;
    background: #fff1f2;
    color: #be123c;
    border: 1px solid #fecdd3;
    font-size: 15px;
    line-height: 1.7;
}

.ur-ai-answer-wrap {
    margin-top: 26px;
    padding: 24px;
    border-radius: 16px;
    background: #f9fafb;
    border: 1px solid #e5e7eb;
}

.ur-ai-answer-wrap h3 {
    margin: 0 0 14px;
    font-size: 22px;
    line-height: 1.4;
    color: #111827;
}

#ur-ai-answer {
    white-space: pre-wrap;
    font-size: 16px;
    line-height: 1.9;
    color: #1f2937;
}

.ur-ai-answer-disclaimer {
    margin-top: 20px;
    padding-top: 14px;
    border-top: 1px solid #e5e7eb;
    color: #6b7280;
    font-size: 13px;
    line-height: 1.7;
}

/* 手機版 */
@media (max-width: 640px) {
    .ur-ai-box {
        margin: 18px 12px;
        padding: 22px 18px;
        border-radius: 16px;
    }

    .ur-ai-header h2 {
        font-size: 24px;
    }

    .ur-ai-header p,
    .ur-ai-notice,
    .ur-ai-examples li,
    #ur-ai-answer {
        font-size: 15px;
    }

    .ur-ai-form-footer {
        align-items: stretch;
        flex-direction: column;
    }

    .ur-ai-form button {
        width: 100%;
    }

    .ur-ai-answer-wrap {
        padding: 18px;
    }
}